/* roulang page: index */
:root {
            --okoo-primary: #0E1117;
            --okoo-primary-soft: #161B24;
            --okoo-accent: #2BC5B4;
            --okoo-accent-dim: #1d8c80;
            --okoo-highlight: #F5B942;
            --okoo-highlight-soft: #fce8b8;
            --okoo-warn: #F06449;
            --okoo-warn-soft: #fde6e0;
            --okoo-bg-light: #F7F8FA;
            --okoo-card-bg: #FFFFFF;
            --okoo-text: #1A1D26;
            --okoo-text-secondary: #5A6270;
            --okoo-text-muted: #8B94A3;
            --okoo-border-light: #E5E9F0;
            --okoo-border-dark: rgba(255, 255, 255, 0.08);
            --okoo-radius-sm: 10px;
            --okoo-radius: 16px;
            --okoo-radius-lg: 20px;
            --okoo-shadow: 0 8px 24px rgba(10, 16, 35, 0.08);
            --okoo-shadow-hover: 0 16px 40px rgba(10, 16, 35, 0.16);
            --okoo-shadow-glow: 0 0 24px rgba(43, 197, 180, 0.22);
            --okoo-font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-font-mono: 'Roboto Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --okoo-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --okoo-section-pad: 80px;
            --okoo-container-max: 1240px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--okoo-font-body);
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--okoo-text);
            background-color: var(--okoo-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            line-height: 1.35;
            color: var(--okoo-text);
            letter-spacing: -0.01em;
        }

        h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.22;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            line-height: 1.3;
        }
        h3 {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.4;
        }
        h4 {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.45;
        }

        p {
            margin-bottom: 1.2rem;
            color: var(--okoo-text-secondary);
        }

        a {
            color: var(--okoo-accent-dim);
            text-decoration: none;
            transition: color var(--okoo-transition), border-color var(--okoo-transition);
        }
        a:hover {
            color: var(--okoo-accent);
        }
        a:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container-custom {
            max-width: var(--okoo-container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .okoo-navbar {
            background: var(--okoo-primary);
            border-bottom: 1px solid var(--okoo-border-dark);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow var(--okoo-transition);
        }
        .okoo-navbar.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
        }
        .okoo-navbar .navbar-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.45rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .okoo-navbar .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }
        .okoo-navbar .navbar-brand:hover {
            color: #fff;
            opacity: 0.9;
        }
        .okoo-navbar .nav-link {
            color: rgba(255, 255, 255, 0.78) !important;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-navbar .nav-link:hover {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.08);
        }
        .okoo-navbar .nav-link.active {
            color: var(--okoo-highlight) !important;
            background: rgba(245, 185, 66, 0.12);
            font-weight: 600;
        }
        .okoo-navbar .nav-link.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--okoo-highlight);
            border-radius: 2px;
            margin-top: 2px;
        }
        .okoo-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .okoo-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.4);
            outline: none;
        }
        .okoo-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .okoo-navbar .nav-cta {
            background: var(--okoo-highlight);
            color: var(--okoo-primary) !important;
            font-weight: 700;
            border-radius: 10px;
            padding: 8px 18px !important;
            margin-left: 8px;
        }
        .okoo-navbar .nav-cta:hover {
            background: #ffc95e !important;
            color: var(--okoo-primary) !important;
        }
        .okoo-navbar .navbar-collapse {
            gap: 4px;
        }

        /* ===== 面包屑 ===== */
        .okoo-breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 10px 0;
            font-size: 0.85rem;
        }
        .okoo-breadcrumb-bar .breadcrumb {
            margin: 0;
            background: transparent;
            padding: 0;
        }
        .okoo-breadcrumb-bar .breadcrumb-item a {
            color: var(--okoo-text-secondary);
            text-decoration: none;
        }
        .okoo-breadcrumb-bar .breadcrumb-item a:hover {
            color: var(--okoo-accent);
        }
        .okoo-breadcrumb-bar .breadcrumb-item.active {
            color: var(--okoo-text);
            font-weight: 500;
        }
        .okoo-breadcrumb-bar .breadcrumb-item + .breadcrumb-item::before {
            content: '/';
            color: var(--okoo-text-muted);
            padding: 0 8px;
        }
        .okoo-breadcrumb-bar .back-link {
            color: var(--okoo-accent-dim);
            font-weight: 500;
            font-size: 0.85rem;
            text-decoration: none;
            white-space: nowrap;
        }
        .okoo-breadcrumb-bar .back-link:hover {
            color: var(--okoo-accent);
        }

        /* ===== Hero 众筹预热 ===== */
        .okoo-hero {
            background: var(--okoo-primary);
            background-image: linear-gradient(180deg, rgba(14, 17, 23, 0.92) 0%, rgba(14, 17, 23, 0.97) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 64px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .okoo-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(43, 197, 180, 0.2) 0%, transparent 65%);
            pointer-events: none;
        }
        .okoo-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -8%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 185, 66, 0.12) 0%, transparent 65%);
            pointer-events: none;
        }
        .okoo-hero .container-custom {
            position: relative;
            z-index: 2;
        }
        .okoo-hero .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(43, 197, 180, 0.14);
            border: 1px solid rgba(43, 197, 180, 0.35);
            color: var(--okoo-accent);
            font-size: 0.82rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }
        .okoo-hero .hero-tagline .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--okoo-accent);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.5);
            }
        }
        .okoo-hero h1 {
            color: #fff;
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }
        .okoo-hero h1 .highlight {
            color: var(--okoo-highlight);
        }
        .okoo-hero .hero-desc {
            color: rgba(255, 255, 255, 0.72);
            font-size: 1.05rem;
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 24px;
        }
        .okoo-hero .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }
        .okoo-hero .btn-hero-primary {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: 12px;
            border: none;
            transition: all var(--okoo-transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-hero .btn-hero-primary:hover {
            background: #ffc95e;
            color: var(--okoo-primary);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(245, 185, 66, 0.35);
        }
        .okoo-hero .btn-hero-secondary {
            background: transparent;
            color: var(--okoo-accent);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 24px;
            border-radius: 12px;
            border: 1px solid rgba(43, 197, 180, 0.4);
            transition: all var(--okoo-transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-hero .btn-hero-secondary:hover {
            background: rgba(43, 197, 180, 0.1);
            border-color: var(--okoo-accent);
            color: var(--okoo-accent);
        }
        /* 进度环 */
        .okoo-progress-ring-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 24px;
        }
        .okoo-progress-ring {
            width: 210px;
            height: 210px;
            border-radius: 50%;
            background: conic-gradient(var(--okoo-accent) 0% 68%, rgba(255, 255, 255, 0.08) 68% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            box-shadow: 0 0 50px rgba(43, 197, 180, 0.2);
        }
        .okoo-progress-ring::before {
            content: '';
            position: absolute;
            width: 176px;
            height: 176px;
            border-radius: 50%;
            background: var(--okoo-primary);
            z-index: 1;
        }
        .okoo-progress-ring .ring-inner {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .okoo-progress-ring .ring-value {
            font-family: var(--okoo-font-mono);
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            line-height: 1;
        }
        .okoo-progress-ring .ring-unit {
            color: var(--okoo-accent);
            font-size: 1rem;
            font-weight: 500;
        }
        .okoo-progress-ring .ring-label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.78rem;
            margin-top: 6px;
        }
        /* 指标卡 */
        .okoo-metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            margin-top: 12px;
        }
        .okoo-metric-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--okoo-radius-sm);
            padding: 16px 14px;
            text-align: left;
            backdrop-filter: blur(6px);
            transition: all var(--okoo-transition);
        }
        .okoo-metric-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(43, 197, 180, 0.35);
        }
        .okoo-metric-card .metric-label {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.75rem;
            font-weight: 500;
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }
        .okoo-metric-card .metric-value {
            font-family: var(--okoo-font-mono);
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
        }
        .okoo-metric-card .metric-unit {
            font-size: 0.8rem;
            color: var(--okoo-accent);
            font-weight: 500;
            margin-left: 2px;
        }
        .okoo-metric-card .metric-change {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 20px;
            margin-top: 8px;
        }
        .metric-change.up {
            background: rgba(43, 197, 180, 0.16);
            color: var(--okoo-accent);
        }
        .metric-change.down {
            background: rgba(240, 100, 73, 0.16);
            color: var(--okoo-warn);
        }
        .metric-change.flat {
            background: rgba(139, 148, 163, 0.2);
            color: #b0b8c4;
        }

        /* 档位预览 */
        .okoo-tier-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
            margin-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 28px;
        }
        .okoo-tier-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--okoo-radius);
            padding: 20px 18px;
            text-align: left;
            transition: all var(--okoo-transition);
            position: relative;
        }
        .okoo-tier-card:hover {
            border-color: rgba(245, 185, 66, 0.45);
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-3px);
            box-shadow: var(--okoo-shadow-glow);
        }
        .okoo-tier-card .tier-badge {
            display: inline-block;
            background: rgba(43, 197, 180, 0.18);
            color: var(--okoo-accent);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }
        .okoo-tier-card .tier-badge.featured {
            background: rgba(245, 185, 66, 0.2);
            color: var(--okoo-highlight);
        }
        .okoo-tier-card h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .okoo-tier-card .tier-price {
            font-family: var(--okoo-font-mono);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--okoo-highlight);
        }
        .okoo-tier-card .tier-desc {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.82rem;
            margin-top: 8px;
            margin-bottom: 0;
        }

        /* ===== 通用板块样式 ===== */
        .okoo-section {
            padding: var(--okoo-section-pad) 0;
            position: relative;
        }
        .okoo-section.bg-light {
            background: #fff;
        }
        .okoo-section.bg-soft {
            background: var(--okoo-bg-light);
        }
        .okoo-section .section-head {
            margin-bottom: 40px;
        }
        .okoo-section .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(43, 197, 180, 0.1);
            border: 1px solid rgba(43, 197, 180, 0.25);
            color: var(--okoo-accent-dim);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .okoo-section .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--okoo-text);
        }
        .okoo-section .section-desc {
            color: var(--okoo-text-secondary);
            font-size: 1rem;
            max-width: 680px;
            line-height: 1.85;
        }

        /* ===== 服务矩阵 - 图鉴卡片 ===== */
        .okoo-service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .okoo-archive-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            overflow: hidden;
            transition: all var(--okoo-transition);
            box-shadow: var(--okoo-shadow);
            display: flex;
            flex-direction: column;
        }
        .okoo-archive-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--okoo-shadow-hover);
            border-color: rgba(43, 197, 180, 0.5);
        }
        .okoo-archive-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #eef0f4;
        }
        .okoo-archive-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .okoo-archive-card:hover .card-cover img {
            transform: scale(1.05);
        }
        .okoo-archive-card .card-cover .cover-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(14, 17, 23, 0.7) 100%);
            pointer-events: none;
        }
        .okoo-archive-card .card-cover .card-number {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(14, 17, 23, 0.75);
            color: var(--okoo-accent);
            font-family: var(--okoo-font-mono);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.06em;
            backdrop-filter: blur(4px);
        }
        .okoo-archive-card .card-cover .card-status {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(43, 197, 180, 0.9);
            color: var(--okoo-primary);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.04em;
        }
        .okoo-archive-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .okoo-archive-card .card-body h4 {
            margin-bottom: 8px;
            font-size: 1.08rem;
        }
        .okoo-archive-card .card-body .card-desc {
            font-size: 0.88rem;
            color: var(--okoo-text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }
        .okoo-archive-card .attr-bar {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 6px;
        }
        .okoo-archive-card .attr-bar .attr-label {
            font-size: 0.7rem;
            color: var(--okoo-text-muted);
            min-width: 52px;
            white-space: nowrap;
        }
        .okoo-archive-card .attr-bar .attr-track {
            flex: 1;
            height: 6px;
            background: #eef0f4;
            border-radius: 4px;
            overflow: hidden;
        }
        .okoo-archive-card .attr-bar .attr-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--okoo-accent), var(--okoo-highlight));
            transition: width 0.6s ease;
        }
        .okoo-archive-card .card-footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 12px;
        }
        .okoo-tag {
            font-size: 0.72rem;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 20px;
            background: rgba(43, 197, 180, 0.08);
            color: var(--okoo-accent-dim);
            border: 1px solid rgba(43, 197, 180, 0.2);
            letter-spacing: 0.02em;
        }
        .okoo-tag.warn {
            background: rgba(240, 100, 73, 0.08);
            color: var(--okoo-warn);
            border-color: rgba(240, 100, 73, 0.2);
        }
        .okoo-tag.gold {
            background: rgba(245, 185, 66, 0.12);
            color: #c88a10;
            border-color: rgba(245, 185, 66, 0.3);
        }

        /* ===== 结果对比 ===== */
        .okoo-compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .okoo-compare-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 28px 22px;
            transition: all var(--okoo-transition);
            box-shadow: var(--okoo-shadow);
            position: relative;
            overflow: hidden;
        }
        .okoo-compare-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--okoo-shadow-hover);
        }
        .okoo-compare-card.recommended {
            border: 2px solid var(--okoo-highlight);
            box-shadow: 0 0 32px rgba(245, 185, 66, 0.18);
        }
        .okoo-compare-card .recommend-badge {
            position: absolute;
            top: 0;
            right: 0;
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 0 0 0 12px;
            letter-spacing: 0.04em;
        }
        .okoo-compare-card .plan-name {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .okoo-compare-card .plan-price {
            font-family: var(--okoo-font-mono);
            font-size: 2rem;
            font-weight: 700;
            color: var(--okoo-accent-dim);
            margin-bottom: 16px;
        }
        .okoo-compare-card .plan-price .per {
            font-size: 0.8rem;
            color: var(--okoo-text-muted);
            font-weight: 400;
        }
        .okoo-compare-card .compare-score-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }
        .okoo-compare-card .compare-score-bar .score-label {
            font-size: 0.75rem;
            color: var(--okoo-text-secondary);
            min-width: 70px;
        }
        .okoo-compare-card .compare-score-bar .score-track {
            flex: 1;
            height: 8px;
            background: #eef0f4;
            border-radius: 5px;
            overflow: hidden;
        }
        .okoo-compare-card .compare-score-bar .score-fill {
            height: 100%;
            border-radius: 5px;
            background: linear-gradient(90deg, var(--okoo-accent), var(--okoo-highlight));
        }
        .okoo-compare-card .compare-score-bar .score-val {
            font-family: var(--okoo-font-mono);
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--okoo-text);
            min-width: 34px;
            text-align: right;
        }
        .okoo-compare-card .plan-features {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
            border-top: 1px solid var(--okoo-border-light);
            padding-top: 16px;
        }
        .okoo-compare-card .plan-features li {
            font-size: 0.84rem;
            color: var(--okoo-text-secondary);
            padding: 5px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .okoo-compare-card .plan-features li i {
            color: var(--okoo-accent);
            font-size: 0.75rem;
            margin-top: 4px;
        }

        /* ===== 时段卡 ===== */
        .okoo-time-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .okoo-time-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius-sm);
            padding: 20px 18px;
            transition: all var(--okoo-transition);
            box-shadow: var(--okoo-shadow);
            text-align: center;
        }
        .okoo-time-card:hover {
            transform: translateY(-3px);
            border-color: rgba(43, 197, 180, 0.4);
            box-shadow: var(--okoo-shadow-hover);
        }
        .okoo-time-card .time-icon {
            font-size: 1.8rem;
            color: var(--okoo-accent);
            margin-bottom: 10px;
        }
        .okoo-time-card .time-period {
            font-family: var(--okoo-font-mono);
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--okoo-highlight);
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }
        .okoo-time-card h5 {
            font-size: 1rem;
            margin-bottom: 8px;
        }
        .okoo-time-card p {
            font-size: 0.82rem;
            color: var(--okoo-text-secondary);
            margin-bottom: 0;
        }

        /* ===== 资讯动态 ===== */
        .okoo-news-layout {
            display: grid;
            grid-template-columns: 1.7fr 1fr;
            gap: 32px;
        }
        .okoo-news-list .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--okoo-border-light);
            transition: all var(--okoo-transition);
        }
        .okoo-news-list .news-item:hover {
            background: rgba(43, 197, 180, 0.03);
            padding-left: 8px;
            border-radius: 6px;
        }
        .okoo-news-list .news-date {
            font-family: var(--okoo-font-mono);
            font-size: 0.78rem;
            color: var(--okoo-text-muted);
            min-width: 72px;
            white-space: nowrap;
            padding-top: 4px;
        }
        .okoo-news-list .news-content h5 {
            font-size: 0.98rem;
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .okoo-news-list .news-content h5 a {
            color: var(--okoo-text);
            text-decoration: none;
        }
        .okoo-news-list .news-content h5 a:hover {
            color: var(--okoo-accent-dim);
        }
        .okoo-news-list .news-content p {
            font-size: 0.85rem;
            color: var(--okoo-text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .okoo-news-sidebar {
            background: var(--okoo-primary);
            border-radius: var(--okoo-radius);
            padding: 24px 20px;
            color: #fff;
        }
        .okoo-news-sidebar h5 {
            color: #fff;
            margin-bottom: 14px;
        }
        .okoo-news-sidebar .side-item {
            display: flex;
            gap: 12px;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .okoo-news-sidebar .side-item:last-child {
            border-bottom: none;
        }
        .okoo-news-sidebar .side-item img {
            width: 56px;
            height: 56px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .okoo-news-sidebar .side-item .side-text {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .okoo-news-sidebar .side-item .side-text strong {
            color: #fff;
            font-weight: 600;
        }

        /* ===== FAQ ===== */
        .okoo-faq-list .accordion-item {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light) !important;
            border-radius: var(--okoo-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--okoo-shadow);
            transition: all var(--okoo-transition);
        }
        .okoo-faq-list .accordion-item:hover {
            border-color: rgba(43, 197, 180, 0.4) !important;
        }
        .okoo-faq-list .accordion-button {
            background: var(--okoo-card-bg);
            color: var(--okoo-text);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 18px 20px;
            box-shadow: none !important;
            border-radius: var(--okoo-radius-sm) !important;
            position: relative;
            transition: all var(--okoo-transition);
        }
        .okoo-faq-list .accordion-button::after {
            content: '\f067';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background: none;
            width: auto;
            height: auto;
            color: var(--okoo-accent);
            font-size: 0.85rem;
            transition: transform var(--okoo-transition);
        }
        .okoo-faq-list .accordion-button:not(.collapsed)::after {
            content: '\f068';
            transform: rotate(0deg);
        }
        .okoo-faq-list .accordion-button:not(.collapsed) {
            background: rgba(43, 197, 180, 0.05);
            color: var(--okoo-accent-dim);
            border-left: 4px solid var(--okoo-accent);
            border-radius: var(--okoo-radius-sm) var(--okoo-radius-sm) 0 0 !important;
        }
        .okoo-faq-list .accordion-body {
            padding: 18px 20px 20px;
            font-size: 0.9rem;
            color: var(--okoo-text-secondary);
            line-height: 1.85;
            border-left: 4px solid var(--okoo-accent);
            margin-left: 0;
        }
        .okoo-faq-list .accordion-collapse {
            border: none;
        }

        /* ===== 用户评价 ===== */
        .okoo-testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .okoo-testimonial-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 22px 20px;
            box-shadow: var(--okoo-shadow);
            transition: all var(--okoo-transition);
            display: flex;
            flex-direction: column;
        }
        .okoo-testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--okoo-shadow-hover);
            border-color: rgba(43, 197, 180, 0.35);
        }
        .okoo-testimonial-card .quote-icon {
            color: var(--okoo-highlight);
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .okoo-testimonial-card .testimonial-text {
            font-size: 0.88rem;
            color: var(--okoo-text-secondary);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 14px;
        }
        .okoo-testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .okoo-testimonial-card .testimonial-author .author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--okoo-primary);
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .okoo-testimonial-card .testimonial-author .author-info {
            font-size: 0.78rem;
            color: var(--okoo-text-muted);
        }
        .okoo-testimonial-card .testimonial-author .author-info strong {
            display: block;
            font-size: 0.85rem;
            color: var(--okoo-text);
            font-weight: 600;
        }

        /* ===== 合作伙伴 / 品牌介绍 ===== */
        .okoo-partner-brand-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 36px;
            align-items: start;
        }
        .okoo-partner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .okoo-partner-tag {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: 12px;
            padding: 14px 16px;
            font-size: 0.82rem;
            color: var(--okoo-text-secondary);
            transition: all var(--okoo-transition);
            box-shadow: var(--okoo-shadow);
            flex: 1 1 calc(50% - 10px);
            min-width: 200px;
        }
        .okoo-partner-tag:hover {
            border-color: rgba(43, 197, 180, 0.4);
            transform: translateY(-2px);
        }
        .okoo-partner-tag strong {
            display: block;
            color: var(--okoo-text);
            font-size: 0.9rem;
            margin-bottom: 4px;
        }
        .okoo-partner-tag span {
            font-size: 0.78rem;
            color: var(--okoo-text-muted);
        }
        .okoo-brand-intro {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 28px 26px;
            box-shadow: var(--okoo-shadow);
        }
        .okoo-brand-intro h3 {
            margin-bottom: 14px;
        }
        .okoo-brand-intro p {
            font-size: 0.92rem;
            line-height: 1.9;
            color: var(--okoo-text-secondary);
            margin-bottom: 12px;
        }
        .okoo-brand-intro p:last-child {
            margin-bottom: 0;
        }

        /* ===== CTA 表单 ===== */
        .okoo-cta-section {
            background: var(--okoo-primary);
            background-image: linear-gradient(140deg, rgba(14, 17, 23, 0.98) 0%, rgba(22, 27, 36, 0.97) 100%), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 64px 0;
            position: relative;
        }
        .okoo-cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 185, 66, 0.15) 0%, transparent 65%);
            pointer-events: none;
        }
        .okoo-cta-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .okoo-cta-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--okoo-radius-lg);
            padding: 36px 32px;
            backdrop-filter: blur(8px);
            max-width: 620px;
            margin: 0 auto;
        }
        .okoo-cta-card h2 {
            color: #fff;
            font-size: 1.7rem;
            margin-bottom: 10px;
        }
        .okoo-cta-card .cta-desc {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.92rem;
            margin-bottom: 22px;
        }
        .okoo-cta-card .form-control {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 0.9rem;
            transition: all var(--okoo-transition);
        }
        .okoo-cta-card .form-control::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .okoo-cta-card .form-control:focus {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--okoo-accent);
            box-shadow: 0 0 0 4px rgba(43, 197, 180, 0.2);
            color: #fff;
            outline: none;
        }
        .okoo-cta-card .form-label {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.82rem;
            font-weight: 500;
            margin-bottom: 6px;
        }
        .okoo-cta-card .btn-submit {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: 12px;
            border: none;
            transition: all var(--okoo-transition);
            width: 100%;
            margin-top: 8px;
        }
        .okoo-cta-card .btn-submit:hover {
            background: #ffc95e;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(245, 185, 66, 0.3);
        }
        .okoo-cta-card .btn-submit:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
        }
        .okoo-cta-card .form-error {
            color: var(--okoo-warn);
            font-size: 0.78rem;
            margin-top: 6px;
            min-height: 1.2em;
        }
        .okoo-cta-card .privacy-note {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.72rem;
            margin-top: 14px;
            text-align: center;
        }

        /* ===== 页脚 ===== */
        .okoo-footer {
            background: #0A0E14;
            color: rgba(255, 255, 255, 0.6);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .okoo-footer .footer-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.3rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .okoo-footer .footer-brand .brand-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--okoo-primary);
            font-weight: 900;
        }
        .okoo-footer .footer-desc {
            font-size: 0.82rem;
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 280px;
        }
        .okoo-footer .footer-title {
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .okoo-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .okoo-footer .footer-links li {
            margin-bottom: 8px;
        }
        .okoo-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.82rem;
            text-decoration: none;
            transition: color var(--okoo-transition);
        }
        .okoo-footer .footer-links a:hover {
            color: var(--okoo-accent);
        }
        .okoo-footer .footer-contact {
            font-size: 0.82rem;
            line-height: 1.8;
        }
        .okoo-footer .footer-contact i {
            color: var(--okoo-accent);
            width: 18px;
            margin-right: 6px;
        }
        .okoo-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            margin-top: 32px;
            padding-top: 18px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
        }
        .okoo-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }
        .okoo-footer .footer-bottom a:hover {
            color: var(--okoo-accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .okoo-service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .okoo-metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991px) {
            :root {
                --okoo-section-pad: 56px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .okoo-hero h1 {
                font-size: 2.2rem;
            }
            .okoo-tier-row {
                grid-template-columns: repeat(3, 1fr);
                overflow-x: auto;
                gap: 10px;
            }
            .okoo-tier-card {
                min-width: 200px;
            }
            .okoo-compare-grid {
                grid-template-columns: repeat(3, 1fr);
                overflow-x: auto;
                gap: 14px;
            }
            .okoo-compare-card {
                min-width: 240px;
            }
            .okoo-time-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .okoo-news-layout {
                grid-template-columns: 1fr;
            }
            .okoo-news-sidebar {
                display: none;
            }
            .okoo-testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .okoo-partner-brand-layout {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 767px) {
            :root {
                --okoo-section-pad: 44px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .okoo-hero {
                padding: 40px 0 32px;
            }
            .okoo-hero h1 {
                font-size: 1.7rem;
            }
            .okoo-hero .hero-desc {
                font-size: 0.9rem;
            }
            .okoo-progress-ring-wrap {
                padding: 16px 0;
            }
            .okoo-progress-ring {
                width: 160px;
                height: 160px;
            }
            .okoo-progress-ring::before {
                width: 130px;
                height: 130px;
            }
            .okoo-progress-ring .ring-value {
                font-size: 2rem;
            }
            .okoo-metric-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .okoo-metric-card {
                padding: 12px 10px;
            }
            .okoo-metric-card .metric-value {
                font-size: 1.2rem;
            }
            .okoo-tier-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .okoo-tier-card {
                min-width: auto;
                padding: 16px;
            }
            .okoo-service-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .okoo-compare-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .okoo-compare-card {
                min-width: auto;
                padding: 20px 16px;
            }
            .okoo-time-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .okoo-news-layout {
                gap: 16px;
            }
            .okoo-news-list .news-item {
                flex-direction: column;
                gap: 6px;
            }
            .okoo-news-list .news-date {
                padding-top: 0;
            }
            .okoo-testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .okoo-partner-tag {
                flex: 1 1 100%;
                min-width: auto;
            }
            .okoo-cta-card {
                padding: 24px 18px;
            }
            .okoo-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .okoo-navbar .nav-cta {
                margin-left: 0;
                margin-top: 4px;
                text-align: center;
            }
            .okoo-breadcrumb-bar {
                font-size: 0.75rem;
            }
        }
        @media (max-width: 575px) {
            .okoo-metric-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 6px;
            }
            .okoo-metric-card .metric-value {
                font-size: 1rem;
            }
            .okoo-hero .hero-cta-group {
                flex-direction: column;
            }
            .okoo-hero .btn-hero-primary,
            .okoo-hero .btn-hero-secondary {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --okoo-primary: #0E1117;
            --okoo-primary-soft: #161B24;
            --okoo-accent: #2BC5B4;
            --okoo-accent-dim: #1d8c80;
            --okoo-highlight: #F5B942;
            --okoo-highlight-soft: #fce8b8;
            --okoo-warn: #F06449;
            --okoo-warn-soft: #fde6e0;
            --okoo-bg-light: #F7F8FA;
            --okoo-card-bg: #FFFFFF;
            --okoo-text: #1A1D26;
            --okoo-text-secondary: #5A6270;
            --okoo-text-muted: #8B94A3;
            --okoo-border-light: #E5E9F0;
            --okoo-border-dark: rgba(255, 255, 255, 0.08);
            --okoo-radius-sm: 10px;
            --okoo-radius: 16px;
            --okoo-radius-lg: 20px;
            --okoo-shadow: 0 8px 24px rgba(10, 16, 35, 0.08);
            --okoo-shadow-hover: 0 16px 40px rgba(10, 16, 35, 0.16);
            --okoo-shadow-glow: 0 0 24px rgba(43, 197, 180, 0.22);
            --okoo-font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-font-mono: 'Roboto Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --okoo-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --okoo-section-pad: 72px;
            --okoo-container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--okoo-font-body);
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--okoo-text);
            background-color: var(--okoo-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--okoo-accent-dim);
            text-decoration: none;
            transition: color var(--okoo-transition), border-color var(--okoo-transition);
        }
        a:hover {
            color: var(--okoo-accent);
        }
        a:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container-custom {
            max-width: var(--okoo-container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .okoo-navbar {
            background: var(--okoo-primary);
            border-bottom: 1px solid var(--okoo-border-dark);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow var(--okoo-transition);
        }
        .okoo-navbar.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
        }
        .okoo-navbar .navbar-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.45rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .okoo-navbar .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }
        .okoo-navbar .navbar-brand:hover {
            color: #fff;
            opacity: 0.9;
        }
        .okoo-navbar .nav-link {
            color: rgba(255, 255, 255, 0.78) !important;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-navbar .nav-link:hover {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.08);
        }
        .okoo-navbar .nav-link.active {
            color: var(--okoo-highlight) !important;
            background: rgba(245, 185, 66, 0.12);
            font-weight: 600;
        }
        .okoo-navbar .nav-link.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--okoo-highlight);
            border-radius: 2px;
            margin-top: 2px;
        }
        .okoo-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .okoo-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.4);
            outline: none;
        }
        .okoo-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h2'/%3e%3c/svg%3e");
        }
        .okoo-navbar .nav-cta {
            background: var(--okoo-highlight) !important;
            color: var(--okoo-primary) !important;
            font-weight: 700 !important;
            border-radius: 10px !important;
            padding: 8px 20px !important;
            margin-left: 8px;
        }
        .okoo-navbar .nav-cta:hover {
            background: #f0c063 !important;
            color: var(--okoo-primary) !important;
            box-shadow: 0 4px 16px rgba(245, 185, 66, 0.35);
        }

        /* ===== 面包屑 ===== */
        .okoo-breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 12px 0;
            position: relative;
            z-index: 100;
        }
        .okoo-breadcrumb-wrap .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }
        .okoo-breadcrumb-wrap .breadcrumb .breadcrumb-item {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .okoo-breadcrumb-wrap .breadcrumb .breadcrumb-item a {
            color: var(--okoo-text-secondary);
            font-weight: 500;
            transition: color var(--okoo-transition);
        }
        .okoo-breadcrumb-wrap .breadcrumb .breadcrumb-item a:hover {
            color: var(--okoo-accent-dim);
        }
        .okoo-breadcrumb-wrap .breadcrumb .breadcrumb-item.active {
            color: var(--okoo-text);
            font-weight: 600;
        }
        .okoo-breadcrumb-wrap .breadcrumb .breadcrumb-item + .breadcrumb-item::before {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.65rem;
            color: var(--okoo-text-muted);
            padding: 0 6px;
        }
        .okoo-breadcrumb-wrap .btn-back {
            font-size: 0.85rem;
            color: var(--okoo-accent-dim);
            font-weight: 500;
            padding: 4px 14px;
            border: 1px solid var(--okoo-border-light);
            border-radius: 8px;
            background: #fff;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-breadcrumb-wrap .btn-back:hover {
            border-color: var(--okoo-accent);
            color: var(--okoo-accent);
            background: rgba(43, 197, 180, 0.05);
        }
        .okoo-breadcrumb-wrap .btn-back i {
            margin-right: 4px;
        }

        /* ===== 页面 Hero ===== */
        .okoo-cat-hero {
            background: var(--okoo-primary);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }
        .okoo-cat-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(43, 197, 180, 0.15), transparent 65%);
            pointer-events: none;
        }
        .okoo-cat-hero::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245, 185, 66, 0.08), transparent 60%);
            pointer-events: none;
        }
        .okoo-cat-hero .hero-content {
            position: relative;
            z-index: 2;
        }
        .okoo-cat-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(43, 197, 180, 0.12);
            color: var(--okoo-accent);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(43, 197, 180, 0.3);
            margin-bottom: 16px;
        }
        .okoo-cat-hero h1 {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 2.6rem;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .okoo-cat-hero h1 .highlight-text {
            color: var(--okoo-accent);
        }
        .okoo-cat-hero .hero-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.72);
            max-width: 560px;
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .okoo-cat-hero .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .okoo-cat-hero .hero-img-wrap {
            position: relative;
            z-index: 2;
            border-radius: var(--okoo-radius);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
        }
        .okoo-cat-hero .hero-img-wrap img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }
        .okoo-cat-hero .hero-img-wrap .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(14, 17, 23, 0.25) 0%, rgba(14, 17, 23, 0.65) 100%);
            display: flex;
            align-items: flex-end;
            padding: 18px;
        }
        .okoo-cat-hero .hero-img-wrap .img-overlay span {
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            background: rgba(14, 17, 23, 0.7);
            padding: 4px 12px;
            border-radius: 6px;
        }

        /* ===== 顶部统计条 ===== */
        .okoo-stats-bar {
            background: #fff;
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 20px 0;
        }
        .okoo-stats-bar .stat-item {
            text-align: center;
            padding: 8px 12px;
            position: relative;
        }
        .okoo-stats-bar .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: var(--okoo-border-light);
        }
        .okoo-stats-bar .stat-value {
            font-family: var(--okoo-font-mono);
            font-size: 1.8rem;
            font-weight: 600;
            color: var(--okoo-primary);
            line-height: 1.2;
        }
        .okoo-stats-bar .stat-value .stat-unit {
            font-size: 0.9rem;
            color: var(--okoo-text-secondary);
            font-weight: 500;
        }
        .okoo-stats-bar .stat-label {
            font-size: 0.8rem;
            color: var(--okoo-text-muted);
            margin-top: 2px;
        }
        .okoo-stats-bar .stat-badge {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 12px;
            margin-top: 4px;
        }
        .okoo-stats-bar .stat-badge.up {
            background: rgba(43, 197, 180, 0.12);
            color: var(--okoo-accent-dim);
        }
        .okoo-stats-bar .stat-badge.down {
            background: var(--okoo-warn-soft);
            color: var(--okoo-warn);
        }

        /* ===== 主体内容区 ===== */
        .okoo-cat-main {
            padding: 56px 0;
        }
        .okoo-dir-card {
            background: #fff;
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 20px;
            position: sticky;
            top: 90px;
        }
        .okoo-dir-card .dir-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--okoo-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-dir-card .dir-title i {
            color: var(--okoo-accent);
            font-size: 0.9rem;
        }
        .okoo-dir-card .dir-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .okoo-dir-card .dir-list li {
            margin-bottom: 4px;
        }
        .okoo-dir-card .dir-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--okoo-text-secondary);
            padding: 8px 12px;
            border-radius: 8px;
            transition: all var(--okoo-transition);
        }
        .okoo-dir-card .dir-list a::before {
            content: '\f0da';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.65rem;
            color: var(--okoo-text-muted);
            transition: color var(--okoo-transition);
        }
        .okoo-dir-card .dir-list a:hover {
            background: rgba(43, 197, 180, 0.06);
            color: var(--okoo-accent-dim);
        }
        .okoo-dir-card .dir-list a:hover::before {
            color: var(--okoo-accent);
        }
        .okoo-dir-card .dir-list a.active {
            background: rgba(43, 197, 180, 0.1);
            color: var(--okoo-accent-dim);
            font-weight: 600;
        }
        .okoo-dir-card .dir-list a.active::before {
            color: var(--okoo-accent);
        }

        /* ===== 属性条列表 ===== */
        .okoo-attr-card {
            background: #fff;
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 28px;
            margin-bottom: 20px;
            transition: all var(--okoo-transition);
        }
        .okoo-attr-card:hover {
            box-shadow: var(--okoo-shadow);
            border-color: rgba(43, 197, 180, 0.35);
        }
        .okoo-attr-card .attr-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
            flex-wrap: wrap;
            gap: 8px;
        }
        .okoo-attr-card .attr-name {
            font-weight: 700;
            font-size: 1rem;
            color: var(--okoo-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-attr-card .attr-name .attr-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(43, 197, 180, 0.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--okoo-accent-dim);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .okoo-attr-card .attr-score {
            font-family: var(--okoo-font-mono);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--okoo-accent-dim);
            background: rgba(43, 197, 180, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
        }
        .okoo-attr-card .attr-score.high {
            color: var(--okoo-highlight);
            background: rgba(245, 185, 66, 0.12);
        }
        .okoo-attr-card .attr-progress {
            height: 8px;
            border-radius: 4px;
            background: #f0f2f5;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .okoo-attr-card .attr-progress .progress-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--okoo-accent), var(--okoo-highlight));
            transition: width 1s ease-out;
            width: 0;
        }
        .okoo-attr-card .attr-progress .progress-fill.animated {
            width: var(--target-width);
        }
        .okoo-attr-card .attr-desc {
            font-size: 0.88rem;
            color: var(--okoo-text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .okoo-attr-card .attr-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        .okoo-attr-card .attr-tags .tag {
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 14px;
            background: var(--okoo-bg-light);
            color: var(--okoo-text-secondary);
            border: 1px solid var(--okoo-border-light);
        }

        /* ===== 场景区块 ===== */
        .okoo-scene-section {
            background: #fff;
            border-top: 1px solid var(--okoo-border-light);
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 56px 0;
        }
        .okoo-scene-card {
            background: var(--okoo-bg-light);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 22px;
            height: 100%;
            transition: all var(--okoo-transition);
        }
        .okoo-scene-card:hover {
            box-shadow: var(--okoo-shadow);
            border-color: rgba(43, 197, 180, 0.3);
            transform: translateY(-2px);
        }
        .okoo-scene-card .scene-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(43, 197, 180, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--okoo-accent-dim);
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .okoo-scene-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--okoo-primary);
            margin-bottom: 8px;
        }
        .okoo-scene-card p {
            font-size: 0.85rem;
            color: var(--okoo-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 流程区 ===== */
        .okoo-flow-section {
            padding: 56px 0;
            background: var(--okoo-bg-light);
        }
        .okoo-flow-step {
            display: flex;
            gap: 16px;
            margin-bottom: 24px;
            position: relative;
        }
        .okoo-flow-step:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 19px;
            top: 44px;
            bottom: -16px;
            width: 2px;
            background: var(--okoo-border-light);
        }
        .okoo-flow-step .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--okoo-primary);
            color: var(--okoo-highlight);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--okoo-font-mono);
            font-weight: 600;
            font-size: 0.95rem;
            flex-shrink: 0;
            z-index: 2;
            border: 2px solid var(--okoo-highlight);
        }
        .okoo-flow-step .step-content h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--okoo-primary);
            margin-bottom: 4px;
        }
        .okoo-flow-step .step-content p {
            font-size: 0.85rem;
            color: var(--okoo-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .okoo-faq-section {
            padding: 56px 0;
            background: #fff;
            border-top: 1px solid var(--okoo-border-light);
            border-bottom: 1px solid var(--okoo-border-light);
        }
        .okoo-accordion .accordion-item {
            border: 1px solid var(--okoo-border-light) !important;
            border-radius: var(--okoo-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
        }
        .okoo-accordion .accordion-button {
            background: var(--okoo-bg-light);
            color: var(--okoo-primary);
            font-weight: 600;
            font-size: 0.92rem;
            padding: 16px 20px;
            border: none;
            box-shadow: none !important;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all var(--okoo-transition);
        }
        .okoo-accordion .accordion-button::after {
            content: '\f067';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background-image: none;
            font-size: 0.75rem;
            color: var(--okoo-text-muted);
            transition: all var(--okoo-transition);
            flex-shrink: 0;
        }
        .okoo-accordion .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--okoo-accent-dim);
            border-left: 4px solid var(--okoo-accent);
        }
        .okoo-accordion .accordion-button:not(.collapsed)::after {
            content: '\f068';
            color: var(--okoo-accent);
            transform: rotate(0deg);
        }
        .okoo-accordion .accordion-button:hover {
            background: #f5f7f9;
        }
        .okoo-accordion .accordion-body {
            font-size: 0.88rem;
            color: var(--okoo-text-secondary);
            line-height: 1.8;
            padding: 16px 20px 20px 24px;
            border-top: 1px solid var(--okoo-border-light);
        }

        /* ===== CTA ===== */
        .okoo-cta-section {
            padding: 64px 0;
            background: var(--okoo-primary);
            position: relative;
            overflow: hidden;
        }
        .okoo-cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(43, 197, 180, 0.12), transparent 60%);
            pointer-events: none;
        }
        .okoo-cta-section .cta-card {
            background: #fff;
            border-radius: var(--okoo-radius-lg);
            padding: 36px;
            position: relative;
            z-index: 2;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .okoo-cta-section .cta-card h2 {
            font-weight: 800;
            font-size: 1.6rem;
            color: var(--okoo-primary);
            margin-bottom: 8px;
        }
        .okoo-cta-section .cta-card p {
            color: var(--okoo-text-secondary);
            font-size: 0.92rem;
            margin-bottom: 20px;
        }
        .okoo-cta-section .form-control {
            border-radius: 10px;
            border: 1px solid var(--okoo-border-light);
            padding: 12px 16px;
            font-size: 0.9rem;
            transition: all var(--okoo-transition);
            color: var(--okoo-text);
            background: #fff;
        }
        .okoo-cta-section .form-control:focus {
            border-color: var(--okoo-accent);
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.2);
            outline: none;
        }
        .okoo-cta-section .form-control.is-invalid {
            border-color: var(--okoo-warn);
            box-shadow: 0 0 0 3px rgba(240, 100, 73, 0.15);
        }
        .okoo-cta-section .invalid-feedback {
            font-size: 0.78rem;
            color: var(--okoo-warn);
        }
        .okoo-cta-section .form-label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--okoo-text);
            margin-bottom: 4px;
        }
        .okoo-cta-section .btn-primary-custom {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-weight: 700;
            border: none;
            border-radius: 10px;
            padding: 14px 28px;
            font-size: 0.95rem;
            transition: all var(--okoo-transition);
            cursor: pointer;
            width: 100%;
        }
        .okoo-cta-section .btn-primary-custom:hover {
            background: #f0c063;
            box-shadow: 0 6px 20px rgba(245, 185, 66, 0.4);
            transform: translateY(-1px);
        }
        .okoo-cta-section .btn-primary-custom:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .okoo-cta-section .btn-primary-custom:disabled {
            opacity: 0.55;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        .okoo-cta-section .privacy-note {
            font-size: 0.75rem;
            color: var(--okoo-text-muted);
            margin-top: 12px;
        }

        /* ===== 页脚 ===== */
        .okoo-footer {
            background: var(--okoo-primary);
            padding: 56px 0 20px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
        }
        .okoo-footer .footer-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.3rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .okoo-footer .footer-brand .brand-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--okoo-primary);
            font-weight: 900;
        }
        .okoo-footer .footer-desc {
            font-size: 0.82rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 16px;
        }
        .okoo-footer .footer-title {
            font-weight: 700;
            font-size: 0.9rem;
            color: #fff;
            margin-bottom: 14px;
        }
        .okoo-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .okoo-footer .footer-links li {
            margin-bottom: 8px;
        }
        .okoo-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.82rem;
            transition: color var(--okoo-transition);
        }
        .okoo-footer .footer-links a:hover {
            color: var(--okoo-accent);
        }
        .okoo-footer .footer-contact p {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-footer .footer-contact i {
            color: var(--okoo-accent);
            width: 16px;
            text-align: center;
        }
        .okoo-footer .footer-bottom {
            border-top: 1px solid var(--okoo-border-dark);
            padding-top: 16px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .okoo-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }
        .okoo-footer .footer-bottom a:hover {
            color: var(--okoo-accent);
        }

        /* ===== 按钮全局 ===== */
        .btn-outline-accent {
            border: 1px solid rgba(43, 197, 180, 0.5);
            color: var(--okoo-accent);
            background: transparent;
            border-radius: 10px;
            padding: 10px 22px;
            font-weight: 600;
            font-size: 0.88rem;
            transition: all var(--okoo-transition);
            cursor: pointer;
        }
        .btn-outline-accent:hover {
            background: rgba(43, 197, 180, 0.08);
            border-color: var(--okoo-accent);
            color: var(--okoo-accent);
        }
        .btn-highlight {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            border: none;
            border-radius: 10px;
            padding: 10px 24px;
            font-weight: 700;
            font-size: 0.88rem;
            transition: all var(--okoo-transition);
            cursor: pointer;
        }
        .btn-highlight:hover {
            background: #f0c063;
            box-shadow: 0 6px 20px rgba(245, 185, 66, 0.35);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .okoo-cat-hero h1 {
                font-size: 2rem;
            }
            .okoo-cat-hero .hero-img-wrap {
                margin-top: 24px;
            }
            .okoo-stats-bar .stat-item:not(:last-child)::after {
                display: none;
            }
            .okoo-stats-bar .stat-item {
                padding: 6px 8px;
            }
            .okoo-stats-bar .stat-value {
                font-size: 1.4rem;
            }
            .okoo-dir-card {
                position: static;
                margin-bottom: 20px;
            }
            .okoo-dir-card .dir-list {
                display: flex;
                flex-wrap: wrap;
                gap: 6px;
            }
            .okoo-dir-card .dir-list li {
                margin-bottom: 0;
            }
        }
        @media (max-width: 768px) {
            :root {
                --okoo-section-pad: 44px;
            }
            .okoo-cat-hero {
                padding: 32px 0 28px;
            }
            .okoo-cat-hero h1 {
                font-size: 1.7rem;
            }
            .okoo-cat-hero .hero-img-wrap img {
                height: 180px;
            }
            .okoo-cat-main {
                padding: 36px 0;
            }
            .okoo-attr-card {
                padding: 20px;
            }
            .okoo-cta-section .cta-card {
                padding: 24px;
            }
            .okoo-footer {
                padding: 40px 0 16px;
            }
        }
        @media (max-width: 576px) {
            .okoo-cat-hero h1 {
                font-size: 1.45rem;
            }
            .okoo-cat-hero .hero-desc {
                font-size: 0.88rem;
            }
            .okoo-stats-bar .stat-value {
                font-size: 1.1rem;
            }
            .okoo-attr-card .attr-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .okoo-flow-step {
                gap: 12px;
            }
            .okoo-flow-step .step-num {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
            .okoo-flow-step:not(:last-child)::after {
                left: 15px;
                top: 36px;
            }
            .okoo-breadcrumb-wrap .btn-back {
                font-size: 0.78rem;
                padding: 2px 10px;
            }
        }

/* roulang page: category1 */
:root {
            --okoo-primary: #0E1117;
            --okoo-primary-soft: #161B24;
            --okoo-accent: #2BC5B4;
            --okoo-accent-dim: #1d8c80;
            --okoo-highlight: #F5B942;
            --okoo-highlight-soft: #fce8b8;
            --okoo-warn: #F06449;
            --okoo-warn-soft: #fde6e0;
            --okoo-bg-light: #F7F8FA;
            --okoo-card-bg: #FFFFFF;
            --okoo-text: #1A1D26;
            --okoo-text-secondary: #5A6270;
            --okoo-text-muted: #8B94A3;
            --okoo-border-light: #E5E9F0;
            --okoo-border-dark: rgba(255, 255, 255, 0.08);
            --okoo-radius-sm: 10px;
            --okoo-radius: 16px;
            --okoo-radius-lg: 20px;
            --okoo-shadow: 0 8px 24px rgba(10, 16, 35, 0.08);
            --okoo-shadow-hover: 0 16px 40px rgba(10, 16, 35, 0.16);
            --okoo-shadow-glow: 0 0 24px rgba(43, 197, 180, 0.22);
            --okoo-font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-font-mono: 'Roboto Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --okoo-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --okoo-section-pad: 80px;
            --okoo-container-max: 1240px;
        }

        @media (max-width: 991px) {
            :root { --okoo-section-pad: 56px; }
        }
        @media (max-width: 575px) {
            :root { --okoo-section-pad: 44px; }
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--okoo-font-body);
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--okoo-text);
            background-color: var(--okoo-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--okoo-accent-dim);
            text-decoration: none;
            transition: color var(--okoo-transition), border-color var(--okoo-transition);
        }
        a:hover { color: var(--okoo-accent); }
        a:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
        .container-custom {
            max-width: var(--okoo-container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .okoo-navbar {
            background: var(--okoo-primary);
            border-bottom: 1px solid var(--okoo-border-dark);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow var(--okoo-transition);
        }
        .okoo-navbar.scrolled { box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35); }
        .okoo-navbar .navbar-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.4rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .okoo-navbar .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.05rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }
        .okoo-navbar .navbar-brand:hover { color: #fff; opacity: 0.9; }
        .okoo-navbar .nav-link {
            color: rgba(255, 255, 255, 0.78) !important;
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: 8px;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-navbar .nav-link:hover {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.08);
        }
        .okoo-navbar .nav-link.active {
            color: var(--okoo-highlight) !important;
            background: rgba(245, 185, 66, 0.12);
            font-weight: 600;
        }
        .okoo-navbar .nav-link.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--okoo-highlight);
            border-radius: 2px;
            margin-top: 2px;
        }
        .okoo-navbar .nav-link.nav-cta {
            background: var(--okoo-highlight);
            color: var(--okoo-primary) !important;
            font-weight: 700;
            border-radius: 8px;
            padding: 8px 18px !important;
        }
        .okoo-navbar .nav-link.nav-cta:hover {
            background: #e6a831;
            color: var(--okoo-primary) !important;
            box-shadow: 0 0 18px rgba(245, 185, 66, 0.35);
        }
        .okoo-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .okoo-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.4);
            outline: none;
        }
        .okoo-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 面包屑 ===== */
        .okoo-breadcrumb-wrapper {
            background: #fff;
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 12px 0;
            position: relative;
            z-index: 100;
        }
        .okoo-breadcrumb {
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
        }
        .okoo-breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--okoo-text-muted);
        }
        .okoo-breadcrumb li a {
            color: var(--okoo-text-secondary);
            transition: color var(--okoo-transition);
        }
        .okoo-breadcrumb li a:hover { color: var(--okoo-accent-dim); }
        .okoo-breadcrumb li .sep {
            color: var(--okoo-text-muted);
            font-size: 0.72rem;
            opacity: 0.7;
        }
        .okoo-breadcrumb li.current {
            color: var(--okoo-text);
            font-weight: 600;
        }
        .breadcrumb-back {
            font-size: 0.85rem;
            color: var(--okoo-accent-dim);
            font-weight: 500;
            white-space: nowrap;
            transition: color var(--okoo-transition);
        }
        .breadcrumb-back:hover { color: var(--okoo-accent); }
        .breadcrumb-back i { margin-right: 4px; }

        /* ===== Hero白皮书获客 ===== */
        .okoo-hero-whitepaper {
            background: var(--okoo-primary);
            position: relative;
            overflow: hidden;
            padding: 64px 0 72px;
            border-bottom: 1px solid var(--okoo-border-dark);
        }
        .okoo-hero-whitepaper::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(43, 197, 180, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .okoo-hero-whitepaper::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(245, 185, 66, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .okoo-hero-whitepaper .hero-content {
            position: relative;
            z-index: 2;
        }
        .okoo-hero-whitepaper .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--okoo-accent);
            background: rgba(43, 197, 180, 0.12);
            border: 1px solid rgba(43, 197, 180, 0.25);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
        }
        .okoo-hero-whitepaper .hero-label i { font-size: 0.75rem; }
        .okoo-hero-whitepaper h1 {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 2.35rem;
            line-height: 1.3;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .okoo-hero-whitepaper h1 .highlight {
            color: var(--okoo-highlight);
            border-bottom: 2px solid rgba(245, 185, 66, 0.5);
            padding-bottom: 2px;
        }
        .okoo-hero-whitepaper .hero-summary {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            max-width: 540px;
            margin-bottom: 22px;
            line-height: 1.9;
        }
        .okoo-hero-whitepaper .hero-toc {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .okoo-hero-whitepaper .hero-toc li {
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 10px;
            line-height: 1.6;
        }
        .okoo-hero-whitepaper .hero-toc li i {
            color: var(--okoo-accent);
            font-size: 0.75rem;
            flex-shrink: 0;
        }
        .okoo-hero-whitepaper .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .okoo-btn-hero-primary {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            border: none;
            padding: 11px 26px;
            font-weight: 700;
            font-size: 0.92rem;
            border-radius: 10px;
            transition: all var(--okoo-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-btn-hero-primary:hover {
            background: #e6a831;
            color: var(--okoo-primary);
            box-shadow: 0 0 22px rgba(245, 185, 66, 0.4);
            transform: translateY(-1px);
        }
        .okoo-btn-hero-secondary {
            background: transparent;
            color: var(--okoo-accent);
            border: 1px solid rgba(43, 197, 180, 0.5);
            padding: 11px 24px;
            font-weight: 600;
            font-size: 0.92rem;
            border-radius: 10px;
            transition: all var(--okoo-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-btn-hero-secondary:hover {
            background: rgba(43, 197, 180, 0.1);
            color: var(--okoo-accent);
            border-color: var(--okoo-accent);
            box-shadow: 0 0 18px rgba(43, 197, 180, 0.25);
        }
        .okoo-hero-whitepaper .hero-cover-card {
            background: var(--okoo-card-bg);
            border-radius: var(--okoo-radius-lg);
            padding: 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
            position: relative;
            overflow: hidden;
        }
        .okoo-hero-whitepaper .hero-cover-card .cover-img-wrap {
            position: relative;
            border-radius: var(--okoo-radius);
            overflow: hidden;
            margin-bottom: 14px;
            aspect-ratio: 16 / 10;
            background: linear-gradient(135deg, #1a2027, #0E1117);
        }
        .okoo-hero-whitepaper .hero-cover-card .cover-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
            transition: transform var(--okoo-transition);
        }
        .okoo-hero-whitepaper .hero-cover-card:hover .cover-img-wrap img {
            transform: scale(1.03);
        }
        .okoo-hero-whitepaper .hero-cover-card .cover-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.03em;
        }
        .okoo-hero-whitepaper .hero-cover-card .cover-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--okoo-text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .okoo-hero-whitepaper .hero-cover-card .cover-desc {
            font-size: 0.85rem;
            color: var(--okoo-text-secondary);
            margin-bottom: 16px;
            line-height: 1.7;
        }
        .okoo-hero-whitepaper .hero-cover-card .cover-meta {
            display: flex;
            gap: 16px;
            font-size: 0.75rem;
            color: var(--okoo-text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .okoo-hero-whitepaper .hero-cover-card .cover-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .okoo-btn-download {
            width: 100%;
            background: var(--okoo-accent);
            color: var(--okoo-primary);
            border: none;
            padding: 11px 18px;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: 10px;
            transition: all var(--okoo-transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .okoo-btn-download:hover {
            background: #25b0a1;
            color: var(--okoo-primary);
            box-shadow: 0 0 20px rgba(43, 197, 180, 0.35);
        }

        /* ===== 板块标题 ===== */
        .section-title-block {
            margin-bottom: 32px;
        }
        .section-title-block .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--okoo-accent-dim);
            background: rgba(43, 197, 180, 0.08);
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 10px;
        }
        .section-title-block h2 {
            font-family: var(--okoo-font-title);
            font-weight: 800;
            font-size: 1.8rem;
            line-height: 1.35;
            color: var(--okoo-text);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .section-title-block .section-subtitle {
            color: var(--okoo-text-secondary);
            font-size: 0.95rem;
            max-width: 680px;
            line-height: 1.8;
        }

        /* ===== 主体区（筛选+卡片+侧栏） ===== */
        .okoo-main-archive {
            padding: 56px 0 64px;
            background: var(--okoo-bg-light);
        }
        .okoo-filter-bar {
            background: #fff;
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 16px 20px;
            margin-bottom: 28px;
            box-shadow: var(--okoo-shadow);
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .okoo-filter-bar .filter-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .okoo-filter-bar .filter-label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--okoo-text-secondary);
            white-space: nowrap;
            margin-right: 4px;
        }
        .okoo-filter-bar .filter-btn {
            background: transparent;
            border: 1px solid var(--okoo-border-light);
            color: var(--okoo-text-secondary);
            padding: 6px 14px;
            border-radius: 8px;
            font-size: 0.82rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-filter-bar .filter-btn:hover {
            border-color: var(--okoo-accent);
            color: var(--okoo-accent-dim);
            background: rgba(43, 197, 180, 0.06);
        }
        .okoo-filter-bar .filter-btn.active {
            background: var(--okoo-accent);
            color: #fff;
            border-color: var(--okoo-accent);
            font-weight: 600;
        }
        .okoo-filter-bar .filter-select {
            border: 1px solid var(--okoo-border-light);
            border-radius: 8px;
            padding: 6px 12px;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--okoo-text-secondary);
            background: #fff;
            cursor: pointer;
            transition: border-color var(--okoo-transition);
            min-width: 130px;
        }
        .okoo-filter-bar .filter-select:focus {
            border-color: var(--okoo-accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.15);
        }
        .okoo-filter-bar .filter-search {
            position: relative;
            flex: 1;
            min-width: 160px;
            max-width: 260px;
        }
        .okoo-filter-bar .filter-search input {
            border: 1px solid var(--okoo-border-light);
            border-radius: 8px;
            padding: 6px 12px 6px 36px;
            font-size: 0.82rem;
            color: var(--okoo-text);
            width: 100%;
            background: #fff;
            transition: border-color var(--okoo-transition), box-shadow var(--okoo-transition);
        }
        .okoo-filter-bar .filter-search input:focus {
            border-color: var(--okoo-accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.15);
        }
        .okoo-filter-bar .filter-search i {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--okoo-text-muted);
            font-size: 0.82rem;
        }

        /* ===== 图鉴卡片 ===== */
        .okoo-archive-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .okoo-archive-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            overflow: hidden;
            box-shadow: var(--okoo-shadow);
            transition: all var(--okoo-transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .okoo-archive-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--okoo-shadow-hover);
            border-color: var(--okoo-accent);
        }
        .okoo-archive-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: linear-gradient(145deg, #1a2027, #0E1117);
        }
        .okoo-archive-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.88;
            transition: transform var(--okoo-transition);
        }
        .okoo-archive-card:hover .card-cover img {
            transform: scale(1.05);
        }
        .okoo-archive-card .card-cover .card-number {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(14, 17, 23, 0.85);
            color: var(--okoo-highlight);
            font-family: var(--okoo-font-mono);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 5px;
            letter-spacing: 0.05em;
            border: 1px solid rgba(245, 185, 66, 0.3);
        }
        .okoo-archive-card .card-cover .card-tag {
            position: absolute;
            top: 10px;
            right: 10px;
            background: rgba(43, 197, 180, 0.9);
            color: #fff;
            font-size: 0.68rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 5px;
            letter-spacing: 0.03em;
        }
        .okoo-archive-card .card-body-archive {
            padding: 18px 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .okoo-archive-card .card-title-archive {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--okoo-text);
            margin-bottom: 6px;
            line-height: 1.45;
        }
        .okoo-archive-card .card-desc-archive {
            font-size: 0.86rem;
            color: var(--okoo-text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }
        .okoo-archive-card .card-attr {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-bottom: 12px;
        }
        .okoo-attr-bar {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-attr-bar .attr-label {
            font-size: 0.72rem;
            color: var(--okoo-text-muted);
            white-space: nowrap;
            min-width: 52px;
            text-align: right;
        }
        .okoo-attr-bar .attr-track {
            flex: 1;
            height: 6px;
            background: var(--okoo-bg-light);
            border-radius: 4px;
            overflow: hidden;
        }
        .okoo-attr-bar .attr-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--okoo-accent), var(--okoo-highlight));
            transition: width var(--okoo-transition);
        }
        .okoo-attr-bar .attr-value {
            font-family: var(--okoo-font-mono);
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--okoo-text);
            min-width: 32px;
            white-space: nowrap;
        }
        .okoo-card-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--okoo-accent-dim);
            padding: 6px 0;
            transition: color var(--okoo-transition);
            align-self: flex-start;
        }
        .okoo-card-btn:hover { color: var(--okoo-accent); }
        .okoo-card-btn i { font-size: 0.7rem; }

        /* ===== 侧栏指标卡 ===== */
        .okoo-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .okoo-sidebar-card {
            background: var(--okoo-primary);
            border: 1px solid var(--okoo-border-dark);
            border-radius: var(--okoo-radius);
            padding: 22px;
            box-shadow: var(--okoo-shadow);
        }
        .okoo-sidebar-card .side-card-title {
            color: #fff;
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-sidebar-card .side-card-title i {
            color: var(--okoo-accent);
            font-size: 0.88rem;
        }
        .okoo-sidebar-card .side-card-sub {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.78rem;
            margin-bottom: 16px;
        }
        .okoo-sidebar-card .side-metric {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .okoo-sidebar-card .side-metric:last-child {
            border-bottom: none;
        }
        .okoo-sidebar-card .side-metric .metric-label {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.82rem;
            font-weight: 500;
        }
        .okoo-sidebar-card .side-metric .metric-value {
            font-family: var(--okoo-font-mono);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--okoo-highlight);
        }
        .okoo-sidebar-card .side-metric .metric-value.accent {
            color: var(--okoo-accent);
        }
        .okoo-sidebar-card .side-metric .metric-badge {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(43, 197, 180, 0.15);
            color: var(--okoo-accent);
        }

        /* ===== 分页 ===== */
        .okoo-pagination-wrap {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }
        .okoo-pagination {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            align-items: center;
        }
        .okoo-pagination .page-btn {
            background: #fff;
            border: 1px solid var(--okoo-border-light);
            color: var(--okoo-text-secondary);
            padding: 7px 14px;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--okoo-transition);
            min-width: 38px;
            text-align: center;
        }
        .okoo-pagination .page-btn:hover {
            border-color: var(--okoo-accent);
            color: var(--okoo-accent-dim);
            background: rgba(43, 197, 180, 0.06);
        }
        .okoo-pagination .page-btn.active {
            background: var(--okoo-accent);
            color: #fff;
            border-color: var(--okoo-accent);
            font-weight: 700;
        }
        .okoo-pagination .page-btn:disabled {
            opacity: 0.45;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* ===== 流程 ===== */
        .okoo-process-section {
            padding: 56px 0 64px;
            background: #fff;
            border-top: 1px solid var(--okoo-border-light);
            border-bottom: 1px solid var(--okoo-border-light);
        }
        .okoo-process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .okoo-process-step {
            background: var(--okoo-bg-light);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 22px 20px;
            position: relative;
            transition: all var(--okoo-transition);
        }
        .okoo-process-step:hover {
            border-color: var(--okoo-accent);
            box-shadow: var(--okoo-shadow);
            transform: translateY(-2px);
        }
        .okoo-process-step .step-number {
            font-family: var(--okoo-font-mono);
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--okoo-accent);
            background: rgba(43, 197, 180, 0.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            margin-bottom: 12px;
        }
        .okoo-process-step .step-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1rem;
            color: var(--okoo-text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .okoo-process-step .step-desc {
            font-size: 0.84rem;
            color: var(--okoo-text-secondary);
            line-height: 1.75;
        }

        /* ===== FAQ ===== */
        .okoo-faq-section {
            padding: 56px 0 64px;
            background: var(--okoo-bg-light);
        }
        .okoo-faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .okoo-faq-item {
            background: #fff;
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--okoo-transition);
        }
        .okoo-faq-item:hover {
            border-color: rgba(43, 197, 180, 0.4);
        }
        .okoo-faq-item .faq-question {
            width: 100%;
            background: #fff;
            border: none;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--okoo-text);
            gap: 12px;
            text-align: left;
            transition: background var(--okoo-transition);
            position: relative;
        }
        .okoo-faq-item .faq-question:hover {
            background: rgba(247, 248, 250, 0.8);
        }
        .okoo-faq-item .faq-question:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
        }
        .okoo-faq-item .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(43, 197, 180, 0.1);
            color: var(--okoo-accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            flex-shrink: 0;
            transition: transform var(--okoo-transition);
        }
        .okoo-faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--okoo-accent);
            color: #fff;
        }
        .okoo-faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            border-left: 4px solid var(--okoo-accent);
            margin-left: 20px;
            margin-right: 20px;
            padding: 0;
        }
        .okoo-faq-item.open .faq-answer {
            max-height: 300px;
            padding: 4px 0 16px 16px;
        }
        .okoo-faq-item .faq-answer p {
            font-size: 0.88rem;
            color: var(--okoo-text-secondary);
            line-height: 1.85;
            margin: 0;
        }

        /* ===== CTA表单 ===== */
        .okoo-cta-section {
            padding: 56px 0 64px;
            background: #fff;
            border-top: 1px solid var(--okoo-border-light);
        }
        .okoo-cta-card {
            background: var(--okoo-primary);
            border-radius: var(--okoo-radius-lg);
            padding: 36px 36px 40px;
            border: 1px solid var(--okoo-border-dark);
            position: relative;
            overflow: hidden;
            box-shadow: var(--okoo-shadow-hover);
        }
        .okoo-cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(43, 197, 180, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .okoo-cta-card .cta-left h2 {
            font-family: var(--okoo-font-title);
            font-weight: 800;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .okoo-cta-card .cta-left p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.92rem;
            line-height: 1.8;
            max-width: 460px;
        }
        .okoo-cta-form .form-label {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.82rem;
            font-weight: 500;
            margin-bottom: 6px;
        }
        .okoo-cta-form .form-control {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 8px;
            color: #fff;
            font-size: 0.88rem;
            padding: 10px 14px;
            transition: all var(--okoo-transition);
        }
        .okoo-cta-form .form-control::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .okoo-cta-form .form-control:focus {
            border-color: var(--okoo-accent);
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.2);
            background: rgba(255, 255, 255, 0.1);
            outline: none;
        }
        .okoo-cta-form .form-control.is-invalid {
            border-color: var(--okoo-warn);
            box-shadow: 0 0 0 3px rgba(240, 100, 73, 0.18);
        }
        .okoo-cta-form .invalid-feedback {
            color: var(--okoo-warn);
            font-size: 0.76rem;
            font-weight: 500;
        }
        .okoo-cta-form .btn-cta-submit {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            border: none;
            padding: 11px 28px;
            font-weight: 700;
            font-size: 0.92rem;
            border-radius: 10px;
            transition: all var(--okoo-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            width: 100%;
            justify-content: center;
        }
        .okoo-cta-form .btn-cta-submit:hover {
            background: #e6a831;
            box-shadow: 0 0 22px rgba(245, 185, 66, 0.4);
            transform: translateY(-1px);
        }
        .okoo-cta-form .btn-cta-submit:disabled {
            opacity: 0.55;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        .okoo-cta-card .cta-privacy {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.75rem;
            margin-top: 12px;
            text-align: center;
        }

        /* ===== 页脚 ===== */
        .okoo-footer {
            background: var(--okoo-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 24px;
            border-top: 1px solid var(--okoo-border-dark);
        }
        .okoo-footer .footer-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.25rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .okoo-footer .footer-brand .brand-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }
        .okoo-footer .footer-desc {
            font-size: 0.86rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 280px;
        }
        .okoo-footer .footer-title {
            color: #fff;
            font-weight: 700;
            font-size: 0.92rem;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .okoo-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .okoo-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.86rem;
            transition: color var(--okoo-transition);
        }
        .okoo-footer .footer-links a:hover { color: var(--okoo-accent); }
        .okoo-footer .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.86rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .okoo-footer .footer-contact p {
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-footer .footer-contact i {
            color: var(--okoo-accent);
            font-size: 0.82rem;
            width: 16px;
            text-align: center;
        }
        .okoo-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .okoo-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--okoo-transition);
        }
        .okoo-footer .footer-bottom a:hover { color: var(--okoo-accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .okoo-hero-whitepaper h1 { font-size: 1.9rem; }
            .okoo-archive-grid { grid-template-columns: repeat(2, 1fr); }
            .okoo-process-steps { grid-template-columns: repeat(2, 1fr); }
            .okoo-cta-card { padding: 28px 24px 30px; }
        }
        @media (max-width: 767px) {
            .okoo-hero-whitepaper { padding: 44px 0 52px; }
            .okoo-hero-whitepaper h1 { font-size: 1.55rem; }
            .okoo-hero-whitepaper .hero-summary { font-size: 0.9rem; }
            .okoo-archive-grid { grid-template-columns: 1fr; }
            .okoo-filter-bar { flex-direction: column; align-items: stretch; }
            .okoo-filter-bar .filter-search { max-width: none; }
            .okoo-process-steps { grid-template-columns: 1fr; }
            .okoo-cta-card { padding: 22px 18px 24px; }
            .okoo-cta-card .cta-left h2 { font-size: 1.3rem; }
            .section-title-block h2 { font-size: 1.45rem; }
            .okoo-footer .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
        }
        @media (max-width: 575px) {
            .okoo-hero-whitepaper h1 { font-size: 1.35rem; }
            .okoo-section-pad { padding: 40px 0; }
            .okoo-breadcrumb-wrapper { padding: 10px 0; }
            .okoo-breadcrumb { font-size: 0.8rem; flex-wrap: nowrap; overflow-x: auto; }
            .okoo-archive-card .card-body-archive { padding: 14px 14px 12px; }
            .okoo-sidebar-card { padding: 16px; }
            .okoo-pagination .page-btn { padding: 6px 10px; font-size: 0.78rem; }
        }
        @media (min-width: 992px) {
            .okoo-archive-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (min-width: 1200px) {
            .okoo-archive-grid { grid-template-columns: repeat(3, 1fr); }
        }

/* roulang page: category3 */
:root {
            --okoo-primary: #0E1117;
            --okoo-primary-soft: #161B24;
            --okoo-accent: #2BC5B4;
            --okoo-accent-dim: #1d8c80;
            --okoo-highlight: #F5B942;
            --okoo-highlight-soft: #fce8b8;
            --okoo-warn: #F06449;
            --okoo-warn-soft: #fde6e0;
            --okoo-bg-light: #F7F8FA;
            --okoo-card-bg: #FFFFFF;
            --okoo-text: #1A1D26;
            --okoo-text-secondary: #5A6270;
            --okoo-text-muted: #8B94A3;
            --okoo-border-light: #E5E9F0;
            --okoo-border-dark: rgba(255, 255, 255, 0.08);
            --okoo-radius-sm: 10px;
            --okoo-radius: 16px;
            --okoo-radius-lg: 20px;
            --okoo-shadow: 0 8px 24px rgba(10, 16, 35, 0.08);
            --okoo-shadow-hover: 0 16px 40px rgba(10, 16, 35, 0.16);
            --okoo-shadow-glow: 0 0 24px rgba(43, 197, 180, 0.22);
            --okoo-font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-font-mono: 'Roboto Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --okoo-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --okoo-section-pad: 72px;
            --okoo-container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--okoo-font-body);
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--okoo-text);
            background-color: var(--okoo-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--okoo-accent-dim);
            text-decoration: none;
            transition: color var(--okoo-transition), border-color var(--okoo-transition);
        }
        a:hover {
            color: var(--okoo-accent);
        }
        a:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container-custom {
            max-width: var(--okoo-container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .okoo-navbar {
            background: var(--okoo-primary);
            border-bottom: 1px solid var(--okoo-border-dark);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow var(--okoo-transition);
        }
        .okoo-navbar.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
        }
        .okoo-navbar .navbar-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.45rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .okoo-navbar .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }
        .okoo-navbar .navbar-brand:hover {
            color: #fff;
            opacity: 0.9;
        }
        .okoo-navbar .nav-link {
            color: rgba(255, 255, 255, 0.78) !important;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-navbar .nav-link:hover {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.08);
        }
        .okoo-navbar .nav-link.active {
            color: var(--okoo-highlight) !important;
            background: rgba(245, 185, 66, 0.12);
            font-weight: 600;
        }
        .okoo-navbar .nav-link.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--okoo-highlight);
            border-radius: 2px;
            margin-top: 2px;
        }
        .okoo-navbar .nav-cta {
            background: var(--okoo-highlight) !important;
            color: var(--okoo-primary) !important;
            font-weight: 700;
            padding: 8px 20px !important;
            border-radius: 10px;
            margin-left: 8px;
        }
        .okoo-navbar .nav-cta:hover {
            background: #f0ad2e !important;
            color: var(--okoo-primary) !important;
            box-shadow: 0 6px 18px rgba(245, 185, 66, 0.35);
        }
        .okoo-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .okoo-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.4);
            outline: none;
        }
        .okoo-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 面包屑 ===== */
        .okoo-breadcrumb-wrapper {
            background: var(--okoo-card-bg);
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 14px 0;
        }
        .okoo-breadcrumb {
            --bs-breadcrumb-divider-color: var(--okoo-text-muted);
            --bs-breadcrumb-item-active-color: var(--okoo-text-secondary);
            --bs-breadcrumb-font-size: 0.9rem;
            margin: 0;
            align-items: center;
        }
        .okoo-breadcrumb .breadcrumb-item a {
            color: var(--okoo-text-secondary);
            font-weight: 500;
        }
        .okoo-breadcrumb .breadcrumb-item a:hover {
            color: var(--okoo-accent);
        }
        .okoo-breadcrumb .breadcrumb-item.active {
            color: var(--okoo-text);
            font-weight: 600;
        }
        .okoo-breadcrumb .breadcrumb-item+.breadcrumb-item::before {
            color: var(--okoo-text-muted);
            content: '/';
            padding-right: 10px;
            padding-left: 6px;
        }
        .breadcrumb-back-btn {
            color: var(--okoo-accent-dim);
            font-size: 0.9rem;
            font-weight: 600;
            white-space: nowrap;
            padding: 5px 14px;
            border: 1px solid var(--okoo-border-light);
            border-radius: 8px;
            transition: all var(--okoo-transition);
            background: var(--okoo-card-bg);
        }
        .breadcrumb-back-btn:hover {
            color: var(--okoo-accent);
            border-color: var(--okoo-accent);
            background: rgba(43, 197, 180, 0.05);
        }

        /* ===== Hero 矮横幅 ===== */
        .okoo-hero {
            background: var(--okoo-bg-light);
            padding: 0;
            margin-bottom: 0;
        }
        .okoo-hero-banner {
            background-image: linear-gradient(rgba(14, 17, 23, 0.86), rgba(14, 17, 23, 0.86)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 52px 0 44px 0;
            color: #fff;
            border-bottom: 1px solid var(--okoo-border-dark);
        }
        .okoo-hero-banner .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(43, 197, 180, 0.12);
            border: 1px solid rgba(43, 197, 180, 0.3);
            color: var(--okoo-accent);
            font-size: 0.82rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .okoo-hero-banner .hero-eyebrow i {
            font-size: 0.8rem;
        }
        .okoo-hero-banner h1 {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 2.4rem;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .okoo-hero-banner .hero-subtitle {
            font-size: 1.06rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 760px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .okoo-hero-banner .hero-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .okoo-hero-banner .hero-tag {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.85);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        /* ===== 通用板块 ===== */
        .section-pad {
            padding-top: var(--okoo-section-pad);
            padding-bottom: var(--okoo-section-pad);
        }
        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--okoo-accent-dim);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-family: var(--okoo-font-title);
            font-weight: 800;
            font-size: 1.85rem;
            line-height: 1.3;
            color: var(--okoo-text);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--okoo-text-secondary);
            line-height: 1.9;
            max-width: 780px;
            margin-bottom: 32px;
        }
        .text-accent {
            color: var(--okoo-accent-dim);
        }
        .text-highlight {
            color: #b8860b;
        }

        /* ===== 对比表格卡片 ===== */
        .compare-table-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 22px 18px;
            height: 100%;
            transition: all var(--okoo-transition);
            box-shadow: var(--okoo-shadow);
            position: relative;
            border-top: 3px solid transparent;
        }
        .compare-table-card:hover {
            box-shadow: var(--okoo-shadow-hover);
            border-color: var(--okoo-accent);
            transform: translateY(-3px);
            border-top-color: var(--okoo-accent);
        }
        .compare-table-card .ctc-rank {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            font-family: var(--okoo-font-mono);
            background: var(--okoo-primary-soft);
            color: #fff;
            margin-bottom: 12px;
        }
        .compare-table-card .ctc-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--okoo-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .compare-table-card .ctc-score {
            display: flex;
            align-items: baseline;
            gap: 6px;
            margin-bottom: 12px;
        }
        .compare-table-card .ctc-score .score-num {
            font-family: var(--okoo-font-mono);
            font-weight: 700;
            font-size: 2rem;
            color: var(--okoo-accent-dim);
        }
        .compare-table-card .ctc-score .score-unit {
            font-size: 0.9rem;
            color: var(--okoo-text-muted);
            font-weight: 500;
        }
        .compare-table-card .ctc-bar {
            height: 8px;
            border-radius: 4px;
            background: var(--okoo-bg-light);
            overflow: hidden;
            margin-bottom: 14px;
        }
        .compare-table-card .ctc-bar .ctc-bar-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--okoo-accent), var(--okoo-highlight));
            width: 0%;
            transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .compare-table-card .ctc-metrics {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .compare-table-card .ctc-metrics li {
            font-size: 0.87rem;
            color: var(--okoo-text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.5;
        }
        .compare-table-card .ctc-metrics li i {
            color: var(--okoo-accent);
            font-size: 0.75rem;
            flex-shrink: 0;
        }
        .compare-table-card .ctc-change {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            margin-top: 12px;
        }
        .compare-table-card .ctc-change.up {
            background: rgba(43, 197, 180, 0.12);
            color: #1d8c80;
        }
        .compare-table-card .ctc-change.down {
            background: var(--okoo-warn-soft);
            color: var(--okoo-warn);
        }
        .compare-table-card .ctc-change.flat {
            background: #eee;
            color: var(--okoo-text-muted);
        }

        /* ===== 图鉴列表 ===== */
        .insight-list-item {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 18px;
            margin-bottom: 18px;
            transition: all var(--okoo-transition);
            box-shadow: var(--okoo-shadow);
            display: flex;
            gap: 18px;
            align-items: stretch;
            position: relative;
        }
        .insight-list-item:hover {
            box-shadow: var(--okoo-shadow-hover);
            border-color: var(--okoo-accent);
            transform: translateY(-2px);
        }
        .insight-list-item .ili-img-wrap {
            flex-shrink: 0;
            width: 160px;
            height: 100%;
            min-height: 130px;
            border-radius: var(--okoo-radius-sm);
            overflow: hidden;
            position: relative;
        }
        .insight-list-item .ili-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .insight-list-item:hover .ili-img-wrap img {
            transform: scale(1.05);
        }
        .insight-list-item .ili-img-wrap .ili-index {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(14, 17, 23, 0.85);
            color: var(--okoo-highlight);
            font-family: var(--okoo-font-mono);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 6px;
            letter-spacing: 0.04em;
        }
        .insight-list-item .ili-body {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .insight-list-item .ili-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.06rem;
            color: var(--okoo-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .insight-list-item .ili-summary {
            font-size: 0.9rem;
            color: var(--okoo-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .insight-list-item .ili-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: flex-end;
        }
        .insight-list-item .ili-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .insight-list-item .ili-stat .stat-label {
            font-size: 0.72rem;
            color: var(--okoo-text-muted);
            font-weight: 500;
            letter-spacing: 0.03em;
        }
        .insight-list-item .ili-stat .stat-value {
            font-family: var(--okoo-font-mono);
            font-weight: 600;
            font-size: 1.1rem;
            color: var(--okoo-text);
            display: flex;
            align-items: baseline;
            gap: 4px;
        }
        .insight-list-item .ili-stat .stat-value .stat-unit {
            font-size: 0.76rem;
            color: var(--okoo-text-muted);
            font-weight: 400;
        }
        .insight-list-item .ili-stat .stat-value.pos {
            color: var(--okoo-accent-dim);
        }
        .insight-list-item .ili-stat .stat-value.neg {
            color: var(--okoo-warn);
        }

        /* ===== FAQ ===== */
        .okoo-faq-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 10px;
            box-shadow: var(--okoo-shadow);
        }
        .okoo-faq-card .okoo-faq-item {
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 6px 0;
        }
        .okoo-faq-card .okoo-faq-item:last-child {
            border-bottom: none;
        }
        .okoo-faq-item .accordion-button {
            background: transparent;
            border: none;
            box-shadow: none;
            font-family: var(--okoo-font-body);
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--okoo-text);
            padding: 12px 14px;
            border-radius: 8px;
            width: 100%;
            text-align: left;
            position: relative;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .okoo-faq-item .accordion-button:hover {
            background: rgba(43, 197, 180, 0.06);
            color: var(--okoo-accent-dim);
        }
        .okoo-faq-item .accordion-button:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
            background: rgba(43, 197, 180, 0.06);
        }
        .okoo-faq-item .accordion-button .faq-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--okoo-bg-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--okoo-accent-dim);
            flex-shrink: 0;
            transition: transform 0.25s ease;
        }
        .okoo-faq-item .accordion-button:not(.collapsed) .faq-icon {
            transform: rotate(45deg);
            background: var(--okoo-accent);
            color: #fff;
        }
        .okoo-faq-item .accordion-button:not(.collapsed) {
            color: var(--okoo-accent-dim);
            font-weight: 700;
        }
        .okoo-faq-item .accordion-collapse {
            transition: height 0.3s ease;
        }
        .okoo-faq-item .accordion-body {
            padding: 4px 14px 16px 46px;
            font-size: 0.92rem;
            color: var(--okoo-text-secondary);
            line-height: 1.8;
            position: relative;
        }
        .okoo-faq-item .accordion-body::before {
            content: '';
            position: absolute;
            left: 22px;
            top: 6px;
            bottom: 10px;
            width: 4px;
            border-radius: 2px;
            background: var(--okoo-accent);
            opacity: 0.6;
        }

        /* ===== CTA ===== */
        .okoo-cta-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius-lg);
            padding: 40px 36px;
            box-shadow: var(--okoo-shadow-hover);
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: flex-start;
            background-image: linear-gradient(135deg, rgba(43, 197, 180, 0.04), rgba(245, 185, 66, 0.06));
        }
        .okoo-cta-card .cta-title {
            font-family: var(--okoo-font-title);
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--okoo-text);
            line-height: 1.35;
            margin-bottom: 8px;
        }
        .okoo-cta-card .cta-desc {
            font-size: 0.98rem;
            color: var(--okoo-text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 640px;
        }
        .okoo-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: all var(--okoo-transition);
            text-decoration: none;
            white-space: nowrap;
            font-family: var(--okoo-font-body);
        }
        .okoo-btn:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 3px;
        }
        .okoo-btn-primary {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
        }
        .okoo-btn-primary:hover {
            background: #f0ad2e;
            color: var(--okoo-primary);
            box-shadow: 0 10px 24px rgba(245, 185, 66, 0.4);
            transform: translateY(-1px);
        }
        .okoo-btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 4px 10px rgba(245, 185, 66, 0.3);
        }
        .okoo-btn-secondary {
            background: transparent;
            color: var(--okoo-accent-dim);
            border: 1px solid var(--okoo-accent);
        }
        .okoo-btn-secondary:hover {
            background: rgba(43, 197, 180, 0.08);
            color: var(--okoo-accent);
            border-color: var(--okoo-accent);
        }

        /* ===== 页脚 ===== */
        .okoo-footer {
            background: var(--okoo-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px 0;
            border-top: 1px solid var(--okoo-border-dark);
        }
        .okoo-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 12px;
        }
        .okoo-footer .footer-brand .brand-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--okoo-primary);
            flex-shrink: 0;
        }
        .okoo-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.62);
            max-width: 320px;
            margin-bottom: 20px;
        }
        .okoo-footer .footer-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .okoo-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .okoo-footer .footer-links a {
            color: rgba(255, 255, 255, 0.62);
            font-size: 0.88rem;
            transition: color var(--okoo-transition);
        }
        .okoo-footer .footer-links a:hover {
            color: var(--okoo-accent);
        }
        .okoo-footer .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.62);
        }
        .okoo-footer .footer-contact p {
            margin: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .okoo-footer .footer-contact i {
            color: var(--okoo-accent);
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }
        .okoo-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px 24px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .okoo-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .okoo-footer .footer-bottom a:hover {
            color: var(--okoo-accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .okoo-navbar .navbar-collapse {
                background: var(--okoo-primary);
                padding: 16px;
                border-radius: 12px;
                margin-top: 10px;
                border: 1px solid var(--okoo-border-dark);
            }
            .okoo-navbar .nav-cta {
                margin-left: 0;
                margin-top: 6px;
                text-align: center;
            }
            .okoo-navbar .nav-link.active::after {
                margin-top: 2px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --okoo-section-pad: 44px;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .okoo-hero-banner {
                padding: 36px 0 32px 0;
            }
            .okoo-hero-banner h1 {
                font-size: 1.65rem;
            }
            .okoo-hero-banner .hero-subtitle {
                font-size: 0.94rem;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .insight-list-item {
                flex-direction: column;
                gap: 14px;
            }
            .insight-list-item .ili-img-wrap {
                width: 100%;
                height: 170px;
                min-height: auto;
            }
            .okoo-cta-card {
                padding: 28px 22px;
            }
            .okoo-cta-card .cta-title {
                font-size: 1.25rem;
            }
            .okoo-footer .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

        @media (max-width: 519.98px) {
            .okoo-hero-banner h1 {
                font-size: 1.35rem;
            }
            .compare-table-card .ctc-score .score-num {
                font-size: 1.6rem;
            }
            .breadcrumb-back-btn {
                font-size: 0.8rem;
                padding: 4px 10px;
            }
        }

.okoo-form-input {
            border: 1px solid var(--okoo-border-light);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 0.95rem;
            color: var(--okoo-text);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            background: var(--okoo-card-bg);
        }
        .okoo-form-input:focus {
            border-color: var(--okoo-accent);
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.15);
            outline: none;
        }
        .okoo-form-input.is-invalid,
        .okoo-form-input.is-invalid:focus {
            border-color: var(--okoo-warn);
            box-shadow: 0 0 0 3px rgba(240, 100, 73, 0.12);
        }
        .invalid-feedback {
            font-size: 0.8rem;
            color: var(--okoo-warn);
            margin-top: 4px;
        }
        .okoo-form-input::placeholder {
            color: var(--okoo-text-muted);
            font-size: 0.9rem;
        }
        .okoo-form-input option {
            color: var(--okoo-text);
        }

/* roulang page: category4 */
:root {
            --okoo-primary: #0E1117;
            --okoo-primary-soft: #161B24;
            --okoo-accent: #2BC5B4;
            --okoo-accent-dim: #1d8c80;
            --okoo-highlight: #F5B942;
            --okoo-highlight-soft: #fce8b8;
            --okoo-warn: #F06449;
            --okoo-warn-soft: #fde6e0;
            --okoo-bg-light: #F7F8FA;
            --okoo-card-bg: #FFFFFF;
            --okoo-text: #1A1D26;
            --okoo-text-secondary: #5A6270;
            --okoo-text-muted: #8B94A3;
            --okoo-border-light: #E5E9F0;
            --okoo-border-dark: rgba(255, 255, 255, 0.08);
            --okoo-radius-sm: 10px;
            --okoo-radius: 16px;
            --okoo-radius-lg: 20px;
            --okoo-shadow: 0 8px 24px rgba(10, 16, 35, 0.08);
            --okoo-shadow-hover: 0 16px 40px rgba(10, 16, 35, 0.16);
            --okoo-shadow-glow: 0 0 24px rgba(43, 197, 180, 0.22);
            --okoo-font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-font-mono: 'Roboto Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --okoo-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --okoo-section-pad: 80px;
            --okoo-container-max: 1240px;
        }
        @media (max-width: 991.98px) {
            :root { --okoo-section-pad: 56px; }
        }
        @media (max-width: 575.98px) {
            :root { --okoo-section-pad: 44px; }
        }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--okoo-font-body);
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--okoo-text);
            background-color: var(--okoo-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }
        a { color: var(--okoo-accent-dim); text-decoration: none; transition: color var(--okoo-transition), border-color var(--okoo-transition); }
        a:hover { color: var(--okoo-accent); }
        a:focus-visible { outline: 3px solid var(--okoo-highlight); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
        .container-custom { max-width: var(--okoo-container-max); margin-left: auto; margin-right: auto; padding-left: 24px; padding-right: 24px; }

        /* ===== 导航 ===== */
        .okoo-navbar {
            background: var(--okoo-primary);
            border-bottom: 1px solid var(--okoo-border-dark);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow var(--okoo-transition);
        }
        .okoo-navbar.scrolled { box-shadow: 0 6px 24px rgba(0,0,0,0.35); }
        .okoo-navbar .navbar-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.45rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .okoo-navbar .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }
        .okoo-navbar .navbar-brand:hover { color: #fff; opacity: 0.9; }
        .okoo-navbar .nav-link {
            color: rgba(255,255,255,0.78) !important;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-navbar .nav-link:hover { color: #fff !important; background: rgba(255,255,255,0.08); }
        .okoo-navbar .nav-link.active {
            color: var(--okoo-highlight) !important;
            background: rgba(245,185,66,0.12);
            font-weight: 600;
        }
        .okoo-navbar .nav-link.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--okoo-highlight);
            border-radius: 2px;
            margin-top: 2px;
        }
        .okoo-navbar .nav-cta {
            background: var(--okoo-highlight);
            color: var(--okoo-primary) !important;
            font-weight: 700 !important;
            border-radius: 8px !important;
            margin-left: 8px;
            padding: 8px 18px !important;
        }
        .okoo-navbar .nav-cta:hover {
            background: #f0a832 !important;
            color: var(--okoo-primary) !important;
            box-shadow: 0 4px 14px rgba(245,185,66,0.3);
        }
        .okoo-navbar .navbar-toggler {
            border: 1px solid rgba(255,255,255,0.25);
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .okoo-navbar .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(43,197,180,0.4); outline: none; }
        .okoo-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 面包屑 ===== */
        .okoo-breadcrumb-bar {
            background: var(--okoo-card-bg);
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 12px 0;
        }
        .okoo-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--okoo-text-muted);
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .okoo-breadcrumb li { display: flex; align-items: center; gap: 8px; }
        .okoo-breadcrumb li::after { content: '/'; color: var(--okoo-text-muted); opacity: 0.5; font-size: 0.75rem; }
        .okoo-breadcrumb li:last-child::after { display: none; }
        .okoo-breadcrumb li:last-child { color: var(--okoo-text); font-weight: 500; }
        .okoo-breadcrumb a { color: var(--okoo-text-secondary); }
        .okoo-breadcrumb a:hover { color: var(--okoo-accent); }
        .okoo-breadcrumb-btn {
            font-size: 0.85rem;
            color: var(--okoo-accent-dim);
            border: 1px solid var(--okoo-border-light);
            padding: 4px 14px;
            border-radius: 6px;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-breadcrumb-btn:hover { border-color: var(--okoo-accent); color: var(--okoo-accent); background: rgba(43,197,180,0.04); }

        /* ===== Hero ===== */
        .okoo-ohero {
            padding: 64px 0 48px;
            background: var(--okoo-primary);
            position: relative;
            overflow: hidden;
        }
        .okoo-ohero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(43,197,180,0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .okoo-ohero::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245,185,66,0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .okoo-ohero .container-custom { position: relative; z-index: 2; }
        .okoo-ohero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(43,197,180,0.12);
            border: 1px solid rgba(43,197,180,0.35);
            color: var(--okoo-accent);
            font-size: 0.82rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 18px;
        }
        .okoo-ohero-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--okoo-warn);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 4px;
            transform: rotate(-2deg);
            margin-left: 10px;
            letter-spacing: 0.02em;
        }
        .okoo-ohero h1 {
            font-family: var(--okoo-font-title);
            font-size: 2.35rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }
        .okoo-ohero h1 .hl {
            color: var(--okoo-highlight);
            position: relative;
        }
        .okoo-ohero h1 .hl::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--okoo-highlight);
            border-radius: 4px;
        }
        .okoo-ohero-desc {
            font-size: 1.08rem;
            color: rgba(255,255,255,0.78);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .okoo-ohero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .okoo-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--okoo-transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .okoo-btn-primary {
            background: var(--okoo-highlight);
            color: var(--okoo-primary) !important;
        }
        .okoo-btn-primary:hover {
            background: #f0a832;
            box-shadow: 0 6px 20px rgba(245,185,66,0.35);
            transform: translateY(-1px);
        }
        .okoo-btn-outline {
            background: transparent;
            color: var(--okoo-accent) !important;
            border: 1px solid var(--okoo-accent);
        }
        .okoo-btn-outline:hover {
            background: rgba(43,197,180,0.08);
            border-color: var(--okoo-accent);
            transform: translateY(-1px);
        }
        .okoo-btn:active { transform: translateY(1px); }
        .okoo-btn:focus-visible { outline: 3px solid var(--okoo-highlight); outline-offset: 2px; }
        .okoo-ohero-panel {
            background: var(--okoo-primary-soft);
            border: 1px solid var(--okoo-border-dark);
            border-radius: var(--okoo-radius-lg);
            padding: 24px;
            box-shadow: inset 0 0 30px rgba(43,197,180,0.05);
        }
        .okoo-ohero-panel .panel-label {
            font-size: 0.75rem;
            color: var(--okoo-text-muted);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 14px;
        }
        .okoo-ohero-panel .panel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px solid var(--okoo-border-dark);
        }
        .okoo-ohero-panel .panel-row:last-child { border-bottom: none; }
        .okoo-ohero-panel .panel-row span { color: rgba(255,255,255,0.7); font-size: 0.88rem; }
        .okoo-ohero-panel .panel-row strong {
            color: var(--okoo-highlight);
            font-family: var(--okoo-font-mono);
            font-size: 1.05rem;
            font-weight: 600;
        }

        /* ===== 指标条 ===== */
        .okoo-metrics-strip {
            padding: 48px 0;
            background: var(--okoo-card-bg);
            border-bottom: 1px solid var(--okoo-border-light);
        }
        .okoo-metric-card {
            background: var(--okoo-primary-soft);
            border: 1px solid var(--okoo-border-dark);
            border-radius: var(--okoo-radius);
            padding: 22px 20px;
            height: 100%;
            transition: all var(--okoo-transition);
            position: relative;
            overflow: hidden;
        }
        .okoo-metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--okoo-accent);
            border-radius: 4px 0 0 4px;
        }
        .okoo-metric-card:hover {
            border-color: rgba(43,197,180,0.4);
            box-shadow: var(--okoo-shadow-glow);
            transform: translateY(-2px);
        }
        .okoo-metric-label {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.6);
            margin-bottom: 6px;
            letter-spacing: 0.04em;
        }
        .okoo-metric-value {
            font-family: var(--okoo-font-mono);
            font-size: 1.9rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.2;
        }
        .okoo-metric-value .unit {
            font-size: 0.9rem;
            color: var(--okoo-text-muted);
            margin-left: 2px;
        }
        .okoo-metric-change {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 10px;
            margin-top: 8px;
        }
        .okoo-metric-change.up {
            background: rgba(43,197,180,0.15);
            color: var(--okoo-accent);
        }
        .okoo-metric-desc {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.55);
            margin-top: 8px;
            line-height: 1.5;
        }

        /* ===== 步骤流程条 ===== */
        .okoo-steps-section {
            padding: var(--okoo-section-pad) 0;
            background: var(--okoo-bg-light);
        }
        .okoo-step-flow {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            position: relative;
            margin-top: 36px;
        }
        .okoo-step-flow::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--okoo-border-light);
            z-index: 0;
        }
        .okoo-step-item {
            flex: 1 1 0;
            min-width: 140px;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 12px;
        }
        .okoo-step-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--okoo-card-bg);
            border: 2px solid var(--okoo-border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-family: var(--okoo-font-mono);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--okoo-text-muted);
            transition: all var(--okoo-transition);
            position: relative;
        }
        .okoo-step-item:hover .okoo-step-circle {
            border-color: var(--okoo-accent);
            color: var(--okoo-accent-dim);
            box-shadow: var(--okoo-shadow-glow);
            transform: translateY(-3px);
        }
        .okoo-step-item.completed .okoo-step-circle {
            background: var(--okoo-accent);
            border-color: var(--okoo-accent);
            color: #fff;
        }
        .okoo-step-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--okoo-text);
            margin-bottom: 6px;
        }
        .okoo-step-desc {
            font-size: 0.82rem;
            color: var(--okoo-text-secondary);
            line-height: 1.6;
            max-width: 160px;
            margin: 0 auto;
        }

        /* ===== 方案卡片 ===== */
        .okoo-schemes-section {
            padding: var(--okoo-section-pad) 0;
            background: var(--okoo-card-bg);
            border-top: 1px solid var(--okoo-border-light);
            border-bottom: 1px solid var(--okoo-border-light);
        }
        .okoo-scheme-card {
            background: var(--okoo-bg-light);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius-lg);
            padding: 28px 24px;
            height: 100%;
            transition: all var(--okoo-transition);
            position: relative;
            overflow: hidden;
        }
        .okoo-scheme-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--okoo-accent), var(--okoo-highlight));
            border-radius: var(--okoo-radius-lg) var(--okoo-radius-lg) 0 0;
        }
        .okoo-scheme-card:hover {
            box-shadow: var(--okoo-shadow-hover);
            border-color: rgba(43,197,180,0.4);
            transform: translateY(-3px);
        }
        .okoo-scheme-card .scheme-num {
            font-family: var(--okoo-font-mono);
            font-size: 0.78rem;
            color: var(--okoo-accent-dim);
            font-weight: 600;
            letter-spacing: 0.05em;
            display: block;
            margin-bottom: 8px;
        }
        .okoo-scheme-card .scheme-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--okoo-text);
            margin-bottom: 10px;
        }
        .okoo-scheme-card .scheme-desc {
            font-size: 0.92rem;
            color: var(--okoo-text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .okoo-scheme-card .scheme-cover {
            border-radius: var(--okoo-radius-sm);
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16/9;
            background: var(--okoo-primary-soft);
        }
        .okoo-scheme-card .scheme-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--okoo-transition);
        }
        .okoo-scheme-card:hover .scheme-cover img { transform: scale(1.04); }
        .okoo-scheme-card .scheme-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }
        .okoo-scheme-card .scheme-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 14px;
            background: rgba(43,197,180,0.1);
            color: var(--okoo-accent-dim);
            border: 1px solid rgba(43,197,180,0.2);
        }

        /* ===== 场景 ===== */
        .okoo-scenes-section {
            padding: var(--okoo-section-pad) 0;
            background: var(--okoo-bg-light);
        }
        .okoo-scene-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 20px 22px;
            height: 100%;
            transition: all var(--okoo-transition);
        }
        .okoo-scene-item:hover {
            border-color: var(--okoo-highlight);
            box-shadow: var(--okoo-shadow);
            transform: translateY(-2px);
        }
        .okoo-scene-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--okoo-primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--okoo-highlight);
            flex-shrink: 0;
        }
        .okoo-scene-title {
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--okoo-text);
            margin-bottom: 4px;
        }
        .okoo-scene-desc {
            font-size: 0.85rem;
            color: var(--okoo-text-secondary);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .okoo-faq-section {
            padding: var(--okoo-section-pad) 0;
            background: var(--okoo-card-bg);
            border-top: 1px solid var(--okoo-border-light);
            border-bottom: 1px solid var(--okoo-border-light);
        }
        .okoo-accordion .accordion-item {
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--okoo-bg-light);
        }
        .okoo-accordion .accordion-button {
            background: var(--okoo-card-bg);
            color: var(--okoo-text);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            position: relative;
        }
        .okoo-accordion .accordion-button::after {
            content: '\f067';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background-image: none;
            color: var(--okoo-accent-dim);
            font-size: 0.85rem;
            transition: transform var(--okoo-transition);
        }
        .okoo-accordion .accordion-button:not(.collapsed)::after {
            content: '\f068';
            transform: rotate(0deg);
        }
        .okoo-accordion .accordion-button:not(.collapsed) {
            background: var(--okoo-bg-light);
            border-left: 4px solid var(--okoo-accent);
            padding-left: 20px;
        }
        .okoo-accordion .accordion-button:focus {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: -2px;
            box-shadow: none;
        }
        .okoo-accordion .accordion-body {
            padding: 16px 20px 20px;
            font-size: 0.9rem;
            color: var(--okoo-text-secondary);
            line-height: 1.85;
            border-left: 4px solid var(--okoo-accent);
            background: var(--okoo-card-bg);
        }

        /* ===== CTA 表单 ===== */
        .okoo-cta-section {
            padding: var(--okoo-section-pad) 0;
            background: var(--okoo-primary);
            position: relative;
            overflow: hidden;
        }
        .okoo-cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245,185,66,0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .okoo-cta-card {
            background: var(--okoo-card-bg);
            border-radius: var(--okoo-radius-lg);
            padding: 40px 36px;
            position: relative;
            z-index: 2;
            box-shadow: var(--okoo-shadow-hover);
        }
        .okoo-cta-card h2 {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--okoo-text);
            margin-bottom: 12px;
        }
        .okoo-cta-card p {
            color: var(--okoo-text-secondary);
            margin-bottom: 24px;
            font-size: 0.95rem;
        }
        .okoo-form-control {
            border: 1px solid var(--okoo-border-light);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 0.9rem;
            background: var(--okoo-card-bg);
            color: var(--okoo-text);
            transition: all var(--okoo-transition);
            width: 100%;
        }
        .okoo-form-control:focus {
            border-color: var(--okoo-accent);
            box-shadow: 0 0 0 3px rgba(43,197,180,0.15);
            outline: none;
        }
        .okoo-form-control.error {
            border-color: var(--okoo-warn);
            box-shadow: 0 0 0 3px rgba(240,100,73,0.15);
        }
        .okoo-form-label {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--okoo-text);
            margin-bottom: 6px;
            display: block;
        }
        .okoo-form-hint {
            font-size: 0.75rem;
            color: var(--okoo-text-muted);
            margin-top: 4px;
        }
        .okoo-form-error {
            font-size: 0.75rem;
            color: var(--okoo-warn);
            margin-top: 4px;
            display: none;
        }
        .okoo-form-error.show { display: block; }
        .okoo-privacy-note {
            font-size: 0.78rem;
            color: var(--okoo-text-muted);
            margin-top: 16px;
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .okoo-footer {
            background: var(--okoo-primary);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 28px;
            font-size: 0.88rem;
        }
        .okoo-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 14px;
        }
        .okoo-footer .brand-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--okoo-primary);
            font-weight: 900;
        }
        .okoo-footer .footer-desc {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.55);
            line-height: 1.8;
            max-width: 320px;
        }
        .okoo-footer .footer-title {
            font-weight: 700;
            color: #fff;
            font-size: 0.92rem;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .okoo-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .okoo-footer ul li { margin-bottom: 8px; }
        .okoo-footer ul a {
            color: rgba(255,255,255,0.55);
            font-size: 0.85rem;
            transition: color var(--okoo-transition);
        }
        .okoo-footer ul a:hover { color: var(--okoo-accent); }
        .okoo-footer .footer-contact p {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255,255,255,0.55);
            font-size: 0.85rem;
        }
        .okoo-footer .footer-contact i {
            color: var(--okoo-accent);
            width: 16px;
            text-align: center;
        }
        .okoo-footer .footer-bottom {
            border-top: 1px solid var(--okoo-border-dark);
            margin-top: 36px;
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            font-size: 0.78rem;
            color: rgba(255,255,255,0.4);
            align-items: center;
        }
        .okoo-footer .footer-bottom a {
            color: rgba(255,255,255,0.4);
        }
        .okoo-footer .footer-bottom a:hover { color: var(--okoo-accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .okoo-ohero h1 { font-size: 1.9rem; }
            .okoo-step-flow::before { display: none; }
            .okoo-step-item { min-width: 50%; margin-bottom: 20px; }
            .okoo-cta-card { padding: 28px 20px; }
        }
        @media (max-width: 767.98px) {
            .okoo-ohero { padding: 40px 0 32px; }
            .okoo-ohero h1 { font-size: 1.6rem; }
            .okoo-ohero-desc { font-size: 0.95rem; }
            .okoo-metric-value { font-size: 1.4rem; }
            .okoo-step-item { min-width: 50%; padding: 0 6px; }
            .okoo-step-circle { width: 48px; height: 48px; font-size: 1rem; }
            .okoo-step-title { font-size: 0.85rem; }
            .okoo-step-desc { font-size: 0.75rem; }
            .okoo-scheme-card { padding: 20px 16px; }
            .okoo-cta-card h2 { font-size: 1.2rem; }
            .okoo-footer { padding: 40px 0 20px; }
        }
        @media (max-width: 575.98px) {
            .okoo-ohero h1 { font-size: 1.35rem; }
            .okoo-ohero-actions { flex-direction: column; align-items: stretch; }
            .okoo-ohero-actions .okoo-btn { justify-content: center; }
            .okoo-step-item { min-width: 100%; }
            .okoo-breadcrumb-bar { padding: 8px 0; }
            .okoo-breadcrumb { font-size: 0.78rem; }
        }

/* roulang page: category5 */
:root {
            --okoo-primary: #0E1117;
            --okoo-primary-soft: #161B24;
            --okoo-accent: #2BC5B4;
            --okoo-accent-dim: #1d8c80;
            --okoo-highlight: #F5B942;
            --okoo-highlight-soft: #fce8b8;
            --okoo-warn: #F06449;
            --okoo-warn-soft: #fde6e0;
            --okoo-bg-light: #F7F8FA;
            --okoo-card-bg: #FFFFFF;
            --okoo-text: #1A1D26;
            --okoo-text-secondary: #5A6270;
            --okoo-text-muted: #8B94A3;
            --okoo-border-light: #E5E9F0;
            --okoo-border-dark: rgba(255, 255, 255, 0.08);
            --okoo-radius-sm: 10px;
            --okoo-radius: 16px;
            --okoo-radius-lg: 20px;
            --okoo-shadow: 0 8px 24px rgba(10, 16, 35, 0.08);
            --okoo-shadow-hover: 0 16px 40px rgba(10, 16, 35, 0.16);
            --okoo-shadow-glow: 0 0 24px rgba(43, 197, 180, 0.22);
            --okoo-font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-font-mono: 'Roboto Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --okoo-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --okoo-section-pad: 80px;
            --okoo-container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--okoo-font-body);
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--okoo-text);
            background-color: var(--okoo-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--okoo-accent-dim);
            text-decoration: none;
            transition: color var(--okoo-transition), border-color var(--okoo-transition);
        }

        a:hover {
            color: var(--okoo-accent);
        }

        a:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container-custom {
            max-width: var(--okoo-container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .okoo-navbar {
            background: var(--okoo-primary);
            border-bottom: 1px solid var(--okoo-border-dark);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow var(--okoo-transition);
        }

        .okoo-navbar.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
        }

        .okoo-navbar .navbar-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.45rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }

        .okoo-navbar .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }

        .okoo-navbar .navbar-brand:hover {
            color: #fff;
            opacity: 0.9;
        }

        .okoo-navbar .nav-link {
            color: rgba(255, 255, 255, 0.78) !important;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }

        .okoo-navbar .nav-link:hover {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.08);
        }

        .okoo-navbar .nav-link.active {
            color: var(--okoo-highlight) !important;
            background: rgba(245, 185, 66, 0.12);
            font-weight: 600;
        }

        .okoo-navbar .nav-link.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--okoo-highlight);
            border-radius: 2px;
            margin-top: 2px;
        }

        .okoo-navbar .nav-cta {
            background: var(--okoo-highlight);
            color: var(--okoo-primary) !important;
            font-weight: 700;
            border-radius: 8px;
            padding: 8px 18px !important;
            margin-left: 8px;
        }

        .okoo-navbar .nav-cta:hover {
            background: #f7c85c !important;
            color: var(--okoo-primary) !important;
            box-shadow: 0 4px 14px rgba(245, 185, 66, 0.35);
        }

        .okoo-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
        }

        .okoo-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.4);
            outline: none;
        }

        .okoo-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 面包屑 ===== */
        .okoo-breadcrumb-section {
            background: var(--okoo-card-bg);
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 18px 0;
        }

        .okoo-breadcrumb-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .okoo-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.88rem;
            color: var(--okoo-text-muted);
            flex-wrap: wrap;
        }

        .okoo-breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .okoo-breadcrumb li::after {
            content: '/';
            color: var(--okoo-text-muted);
            font-size: 0.8rem;
            opacity: 0.5;
        }

        .okoo-breadcrumb li:last-child::after {
            content: '';
            display: none;
        }

        .okoo-breadcrumb li a {
            color: var(--okoo-text-secondary);
            font-weight: 500;
            transition: color var(--okoo-transition);
        }

        .okoo-breadcrumb li a:hover {
            color: var(--okoo-accent);
        }

        .okoo-breadcrumb li.current {
            color: var(--okoo-text);
            font-weight: 600;
        }

        .okoo-breadcrumb-back {
            font-size: 0.85rem;
            color: var(--okoo-accent-dim);
            font-weight: 600;
            padding: 6px 16px;
            border: 1px solid var(--okoo-border-light);
            border-radius: 8px;
            transition: all var(--okoo-transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .okoo-breadcrumb-back:hover {
            border-color: var(--okoo-accent);
            color: var(--okoo-accent);
            background: rgba(43, 197, 180, 0.05);
        }

        /* ===== Hero 区 ===== */
        .okoo-hero-banner {
            background: var(--okoo-primary);
            padding: 80px 0 100px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--okoo-border-dark);
        }

        .okoo-hero-banner::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(43, 197, 180, 0.18), transparent 65%);
            pointer-events: none;
        }

        .okoo-hero-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 185, 66, 0.12), transparent 65%);
            pointer-events: none;
        }

        .okoo-hero-title {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 2.5rem;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
            position: relative;
            z-index: 1;
        }

        .okoo-hero-title .accent {
            color: var(--okoo-highlight);
        }

        .okoo-hero-subtitle {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.8;
            max-width: 700px;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }

        .okoo-hero-meta-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            position: relative;
            z-index: 1;
            margin-bottom: 28px;
        }

        .okoo-hero-badge {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .okoo-hero-badge--cyan {
            background: rgba(43, 197, 180, 0.15);
            color: var(--okoo-accent);
            border: 1px solid rgba(43, 197, 180, 0.35);
        }

        .okoo-hero-badge--amber {
            background: rgba(245, 185, 66, 0.15);
            color: var(--okoo-highlight);
            border: 1px solid rgba(245, 185, 66, 0.35);
        }

        .okoo-hero-badge--coral {
            background: rgba(240, 100, 73, 0.15);
            color: var(--okoo-warn);
            border: 1px solid rgba(240, 100, 73, 0.35);
        }

        .okoo-hero-stats-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            position: relative;
            z-index: 1;
            max-width: 720px;
            margin-top: 12px;
        }

        .okoo-hero-stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--okoo-radius);
            padding: 18px 20px;
            transition: all var(--okoo-transition);
        }

        .okoo-hero-stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(43, 197, 180, 0.4);
        }

        .okoo-hero-stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .okoo-hero-stat-value {
            font-family: var(--okoo-font-mono);
            font-size: 1.7rem;
            font-weight: 600;
            color: var(--okoo-accent);
            line-height: 1.2;
        }

        .okoo-hero-stat-unit {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-left: 2px;
        }

        .okoo-hero-stat-trend {
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 6px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .okoo-hero-stat-trend.up {
            color: var(--okoo-accent);
        }

        .okoo-hero-stat-trend.down {
            color: var(--okoo-warn);
        }

        /* ===== 通用 section 标题 ===== */
        .okoo-section-header {
            margin-bottom: 40px;
        }

        .okoo-section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--okoo-accent-dim);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .okoo-section-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.9rem;
            color: var(--okoo-primary);
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .okoo-section-desc {
            font-size: 1rem;
            color: var(--okoo-text-secondary);
            line-height: 1.85;
            max-width: 720px;
        }

        .okoo-section-pad {
            padding: var(--okoo-section-pad) 0;
        }

        /* ===== 对比卡片区 ===== */
        .okoo-compare-section {
            background: var(--okoo-bg-light);
        }

        .okoo-compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .okoo-compare-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 28px 24px;
            transition: all var(--okoo-transition);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .okoo-compare-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--okoo-shadow-hover);
            border-color: rgba(43, 197, 180, 0.5);
        }

        .okoo-compare-card--featured {
            border-color: var(--okoo-highlight);
            box-shadow: 0 8px 32px rgba(245, 185, 66, 0.15);
        }

        .okoo-compare-card--featured::before {
            content: '推荐方案';
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.04em;
        }

        .okoo-compare-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .okoo-compare-card-icon--cyan {
            background: rgba(43, 197, 180, 0.12);
            color: var(--okoo-accent-dim);
            border: 1px solid rgba(43, 197, 180, 0.25);
        }

        .okoo-compare-card-icon--amber {
            background: rgba(245, 185, 66, 0.12);
            color: #d4a030;
            border: 1px solid rgba(245, 185, 66, 0.3);
        }

        .okoo-compare-card-icon--coral {
            background: rgba(240, 100, 73, 0.1);
            color: var(--okoo-warn);
            border: 1px solid rgba(240, 100, 73, 0.25);
        }

        .okoo-compare-card-name {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--okoo-primary);
            margin-bottom: 8px;
        }

        .okoo-compare-card-price {
            font-family: var(--okoo-font-mono);
            font-weight: 600;
            font-size: 1.5rem;
            color: var(--okoo-accent-dim);
            margin-bottom: 4px;
        }

        .okoo-compare-card-price-note {
            font-size: 0.82rem;
            color: var(--okoo-text-muted);
            margin-bottom: 16px;
        }

        .okoo-compare-card-desc {
            font-size: 0.94rem;
            color: var(--okoo-text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .okoo-compare-card-features {
            list-style: none;
            margin: 0 0 20px;
            padding: 0;
            flex-grow: 1;
        }

        .okoo-compare-card-features li {
            font-size: 0.9rem;
            color: var(--okoo-text);
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid var(--okoo-border-light);
        }

        .okoo-compare-card-features li:last-child {
            border-bottom: none;
        }

        .okoo-compare-card-features li i {
            color: var(--okoo-accent);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .okoo-compare-card-features li i.fa-circle-xmark {
            color: var(--okoo-warn);
        }

        .okoo-btn-compare {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 20px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.92rem;
            transition: all var(--okoo-transition);
            border: none;
            cursor: pointer;
            width: 100%;
        }

        .okoo-btn-compare--amber {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
        }

        .okoo-btn-compare--amber:hover {
            background: #f7c85c;
            box-shadow: 0 6px 20px rgba(245, 185, 66, 0.35);
            transform: translateY(-1px);
        }

        .okoo-btn-compare--outline {
            background: transparent;
            color: var(--okoo-accent-dim);
            border: 1.5px solid var(--okoo-accent-dim);
        }

        .okoo-btn-compare--outline:hover {
            background: rgba(43, 197, 180, 0.08);
            color: var(--okoo-accent);
            border-color: var(--okoo-accent);
        }

        .okoo-btn-compare:active {
            transform: translateY(1px);
        }

        .okoo-btn-compare:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
        }

        /* ===== 数值详情区（卡片化数值表） ===== */
        .okoo-metric-section {
            background: var(--okoo-card-bg);
            border-top: 1px solid var(--okoo-border-light);
            border-bottom: 1px solid var(--okoo-border-light);
        }

        .okoo-metric-cards-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .okoo-metric-detail-card {
            background: var(--okoo-bg-light);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 28px;
            transition: all var(--okoo-transition);
        }

        .okoo-metric-detail-card:hover {
            box-shadow: var(--okoo-shadow);
            border-color: rgba(43, 197, 180, 0.35);
        }

        .okoo-metric-detail-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            gap: 12px;
            flex-wrap: wrap;
        }

        .okoo-metric-detail-label {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--okoo-primary);
        }

        .okoo-metric-detail-badge {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 14px;
            background: rgba(43, 197, 180, 0.1);
            color: var(--okoo-accent-dim);
            border: 1px solid rgba(43, 197, 180, 0.25);
        }

        .okoo-metric-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--okoo-border-light);
            gap: 16px;
        }

        .okoo-metric-row:last-child {
            border-bottom: none;
        }

        .okoo-metric-row-label {
            font-size: 0.9rem;
            color: var(--okoo-text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .okoo-metric-row-label i {
            color: var(--okoo-accent-dim);
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .okoo-metric-row-value {
            font-family: var(--okoo-font-mono);
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--okoo-primary);
            white-space: nowrap;
        }

        .okoo-metric-row-value--strong {
            color: var(--okoo-accent-dim);
            font-size: 1.2rem;
        }

        .okoo-metric-progress-bar {
            width: 100%;
            height: 6px;
            background: var(--okoo-border-light);
            border-radius: 3px;
            overflow: hidden;
            margin-top: 4px;
        }

        .okoo-metric-progress-bar .fill {
            height: 100%;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--okoo-accent), var(--okoo-highlight));
            transition: width 0.6s ease;
        }

        /* ===== 场景区 ===== */
        .okoo-scenario-section {
            background: var(--okoo-bg-light);
        }

        .okoo-scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .okoo-scenario-card {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--okoo-transition);
        }

        .okoo-scenario-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--okoo-shadow);
            border-color: rgba(43, 197, 180, 0.4);
        }

        .okoo-scenario-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            background: rgba(43, 197, 180, 0.1);
            color: var(--okoo-accent-dim);
            border: 1px solid rgba(43, 197, 180, 0.25);
        }

        .okoo-scenario-name {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1rem;
            color: var(--okoo-primary);
            margin-bottom: 6px;
        }

        .okoo-scenario-desc {
            font-size: 0.85rem;
            color: var(--okoo-text-muted);
            line-height: 1.7;
        }

        /* ===== FAQ 区 ===== */
        .okoo-faq-section {
            background: var(--okoo-card-bg);
            border-top: 1px solid var(--okoo-border-light);
            border-bottom: 1px solid var(--okoo-border-light);
        }

        .okoo-faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .okoo-faq-item {
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--okoo-transition);
            background: var(--okoo-bg-light);
        }

        .okoo-faq-item:hover {
            border-color: rgba(43, 197, 180, 0.35);
        }

        .okoo-faq-item.open {
            border-color: var(--okoo-accent);
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.1);
            border-left: 4px solid var(--okoo-accent);
        }

        .okoo-faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            font-family: var(--okoo-font-title);
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--okoo-primary);
            transition: all var(--okoo-transition);
        }

        .okoo-faq-question:hover {
            color: var(--okoo-accent-dim);
        }

        .okoo-faq-question:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: -2px;
            border-radius: var(--okoo-radius-sm);
        }

        .okoo-faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--okoo-accent-dim);
            background: rgba(43, 197, 180, 0.1);
            transition: transform 0.3s ease;
        }

        .okoo-faq-item.open .okoo-faq-icon {
            transform: rotate(45deg);
            background: rgba(43, 197, 180, 0.2);
        }

        .okoo-faq-answer-wrap {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .okoo-faq-item.open .okoo-faq-answer-wrap {
            max-height: 300px;
        }

        .okoo-faq-answer {
            padding: 0 20px 18px;
            font-size: 0.92rem;
            color: var(--okoo-text-secondary);
            line-height: 1.85;
            border-left: 3px solid var(--okoo-accent);
            margin-left: 20px;
            padding-left: 16px;
        }

        /* ===== 转化表单区 ===== */
        .okoo-cta-section {
            background: var(--okoo-primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .okoo-cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -50px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 185, 66, 0.15), transparent 65%);
            pointer-events: none;
        }

        .okoo-cta-card {
            background: var(--okoo-card-bg);
            border-radius: var(--okoo-radius-lg);
            padding: 48px 40px;
            max-width: 720px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }

        .okoo-cta-card-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.7rem;
            color: var(--okoo-primary);
            margin-bottom: 10px;
            text-align: center;
        }

        .okoo-cta-card-desc {
            font-size: 0.98rem;
            color: var(--okoo-text-secondary);
            text-align: center;
            margin-bottom: 32px;
            line-height: 1.75;
        }

        .okoo-form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .okoo-form-group {
            margin-bottom: 16px;
        }

        .okoo-form-group.full {
            grid-column: 1 / -1;
        }

        .okoo-form-label {
            display: block;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--okoo-text);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .okoo-form-input,
        .okoo-form-select,
        .okoo-form-textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid var(--okoo-border-light);
            border-radius: 10px;
            font-size: 0.95rem;
            color: var(--okoo-text);
            background: var(--okoo-bg-light);
            transition: all var(--okoo-transition);
            appearance: none;
            outline: none;
        }

        .okoo-form-input:focus,
        .okoo-form-select:focus,
        .okoo-form-textarea:focus {
            border-color: var(--okoo-accent);
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.15);
            background: #fff;
        }

        .okoo-form-input.error,
        .okoo-form-select.error,
        .okoo-form-textarea.error {
            border-color: var(--okoo-warn);
            box-shadow: 0 0 0 3px rgba(240, 100, 73, 0.12);
        }

        .okoo-form-error-msg {
            display: none;
            font-size: 0.8rem;
            color: var(--okoo-warn);
            margin-top: 4px;
        }

        .okoo-form-error-msg.show {
            display: block;
        }

        .okoo-form-textarea {
            min-height: 100px;
            resize: vertical;
        }

        .okoo-btn-submit {
            width: 100%;
            padding: 14px 24px;
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-weight: 700;
            font-size: 1rem;
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: all var(--okoo-transition);
            letter-spacing: 0.04em;
        }

        .okoo-btn-submit:hover {
            background: #f7c85c;
            box-shadow: 0 6px 24px rgba(245, 185, 66, 0.4);
            transform: translateY(-1px);
        }

        .okoo-btn-submit:active {
            transform: translateY(1px);
        }

        .okoo-btn-submit:disabled {
            opacity: 0.55;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .okoo-btn-submit:focus-visible {
            outline: 3px solid var(--okoo-accent);
            outline-offset: 2px;
        }

        .okoo-form-privacy {
            font-size: 0.78rem;
            color: var(--okoo-text-muted);
            text-align: center;
            margin-top: 14px;
            line-height: 1.7;
        }

        .okoo-form-success {
            display: none;
            background: rgba(43, 197, 180, 0.1);
            border: 1px solid rgba(43, 197, 180, 0.3);
            color: var(--okoo-accent-dim);
            padding: 16px 20px;
            border-radius: 10px;
            text-align: center;
            font-weight: 600;
            margin-top: 16px;
        }

        .okoo-form-success.show {
            display: block;
        }

        /* ===== 页脚 ===== */
        .okoo-footer {
            background: var(--okoo-primary);
            border-top: 1px solid var(--okoo-border-dark);
            padding: 56px 0 0;
        }

        .okoo-footer .container-custom {
            padding-bottom: 0;
        }

        .footer-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.4rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .brand-icon-sm {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
            line-height: 1.85;
            max-width: 340px;
        }

        .footer-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--okoo-transition);
        }

        .footer-links a:hover {
            color: var(--okoo-accent);
        }

        .footer-contact {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            line-height: 2;
        }

        .footer-contact p {
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--okoo-accent);
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid var(--okoo-border-dark);
            padding: 16px 0;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.8rem;
            justify-content: center;
            align-items: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--okoo-transition);
        }

        .footer-bottom a:hover {
            color: var(--okoo-accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 576px) {
            :root {
                --okoo-section-pad: 44px;
            }
            .okoo-navbar .navbar-brand {
                font-size: 1.15rem;
            }
            .okoo-navbar .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .okoo-hero-title {
                font-size: 1.6rem;
            }
            .okoo-hero-subtitle {
                font-size: 0.95rem;
            }
            .okoo-hero-stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .okoo-hero-stat-card {
                padding: 12px 14px;
            }
            .okoo-hero-stat-value {
                font-size: 1.3rem;
            }
            .okoo-section-title {
                font-size: 1.4rem;
            }
            .okoo-compare-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .okoo-metric-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .okoo-scenario-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .okoo-cta-card {
                padding: 28px 20px;
            }
            .okoo-cta-card-title {
                font-size: 1.3rem;
            }
            .okoo-form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .okoo-breadcrumb-wrap {
                flex-direction: column;
                align-items: flex-start;
            }
            .okoo-breadcrumb-back {
                align-self: flex-start;
            }
            .okoo-metric-detail-card {
                padding: 18px 16px;
            }
            .okoo-metric-row {
                flex-direction: row;
                gap: 8px;
            }
            .okoo-metric-row-value {
                font-size: 0.9rem;
            }
        }

        @media (min-width: 577px) and (max-width: 768px) {
            .okoo-compare-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .okoo-compare-card:last-child {
                grid-column: 1 / -1;
            }
            .okoo-metric-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .okoo-scenario-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .okoo-hero-title {
                font-size: 2rem;
            }
            .okoo-hero-stats-row {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (min-width: 769px) and (max-width: 992px) {
            .okoo-compare-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .okoo-compare-card:last-child {
                grid-column: 1 / -1;
            }
            .okoo-metric-cards-grid {
                grid-template-columns: 1fr;
            }
            .okoo-scenario-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (min-width: 1200px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

/* roulang page: category6 */
:root {
            --okoo-primary: #0E1117;
            --okoo-primary-soft: #161B24;
            --okoo-accent: #2BC5B4;
            --okoo-accent-dim: #1d8c80;
            --okoo-highlight: #F5B942;
            --okoo-highlight-soft: #fce8b8;
            --okoo-warn: #F06449;
            --okoo-warn-soft: #fde6e0;
            --okoo-bg-light: #F7F8FA;
            --okoo-card-bg: #FFFFFF;
            --okoo-text: #1A1D26;
            --okoo-text-secondary: #5A6270;
            --okoo-text-muted: #8B94A3;
            --okoo-border-light: #E5E9F0;
            --okoo-border-dark: rgba(255, 255, 255, 0.08);
            --okoo-radius-sm: 10px;
            --okoo-radius: 16px;
            --okoo-radius-lg: 20px;
            --okoo-shadow: 0 8px 24px rgba(10, 16, 35, 0.08);
            --okoo-shadow-hover: 0 16px 40px rgba(10, 16, 35, 0.16);
            --okoo-shadow-glow: 0 0 24px rgba(43, 197, 180, 0.22);
            --okoo-font-title: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-font-mono: 'Roboto Mono', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --okoo-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', sans-serif;
            --okoo-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --okoo-section-pad: 80px;
            --okoo-container-max: 1240px;
        }
        @media (max-width: 991px) {
            :root {
                --okoo-section-pad: 56px;
            }
        }
        @media (max-width: 575px) {
            :root {
                --okoo-section-pad: 44px;
            }
        }

        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--okoo-font-body);
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--okoo-text);
            background-color: var(--okoo-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--okoo-accent-dim);
            text-decoration: none;
            transition: color var(--okoo-transition), border-color var(--okoo-transition), background var(--okoo-transition), box-shadow var(--okoo-transition);
        }
        a:hover {
            color: var(--okoo-accent);
        }
        a:focus-visible {
            outline: 3px solid var(--okoo-highlight);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container-custom {
            max-width: var(--okoo-container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 导航 */
        .okoo-navbar {
            background: var(--okoo-primary);
            border-bottom: 1px solid var(--okoo-border-dark);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow var(--okoo-transition);
        }
        .okoo-navbar.scrolled {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
        }
        .okoo-navbar .navbar-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.45rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .okoo-navbar .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--okoo-primary);
            font-weight: 900;
            flex-shrink: 0;
        }
        .okoo-navbar .navbar-brand:hover {
            color: #fff;
            opacity: 0.9;
        }
        .okoo-navbar .nav-link {
            color: rgba(255, 255, 255, 0.78) !important;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all var(--okoo-transition);
            white-space: nowrap;
        }
        .okoo-navbar .nav-link:hover {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.08);
        }
        .okoo-navbar .nav-link.active {
            color: var(--okoo-highlight) !important;
            background: rgba(245, 185, 66, 0.12);
            font-weight: 600;
        }
        .okoo-navbar .nav-link.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--okoo-highlight);
            border-radius: 2px;
            margin-top: 2px;
        }
        .okoo-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
        }
        .okoo-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.4);
            outline: none;
        }
        .okoo-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .okoo-navbar .nav-cta {
            background: var(--okoo-highlight);
            color: var(--okoo-primary) !important;
            font-weight: 700;
            border-radius: 10px;
            padding: 8px 18px !important;
            margin-left: 6px;
        }
        .okoo-navbar .nav-cta:hover {
            background: #f0a92c;
            color: var(--okoo-primary) !important;
        }

        /* 面包屑 */
        .okoo-breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--okoo-border-light);
            padding: 14px 0;
        }
        .okoo-breadcrumb-bar .breadcrumb-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .okoo-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.9rem;
        }
        .okoo-breadcrumb .breadcrumb-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-breadcrumb .breadcrumb-item a {
            color: var(--okoo-text-secondary);
            font-size: 0.88rem;
        }
        .okoo-breadcrumb .breadcrumb-item a:hover {
            color: var(--okoo-accent);
        }
        .okoo-breadcrumb .breadcrumb-item.active {
            color: var(--okoo-text);
            font-weight: 600;
        }
        .okoo-breadcrumb .breadcrumb-sep {
            color: var(--okoo-text-muted);
            font-size: 0.75rem;
        }
        .okoo-breadcrumb .back-parent {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--okoo-accent-dim);
            background: rgba(43, 197, 180, 0.08);
            border-radius: 8px;
            padding: 6px 14px;
            transition: all var(--okoo-transition);
        }
        .okoo-breadcrumb .back-parent:hover {
            background: rgba(43, 197, 180, 0.16);
            color: var(--okoo-accent-dim);
        }

        /* Hero */
        .okoo-hero-tool {
            background: var(--okoo-primary);
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .okoo-hero-tool::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(43, 197, 180, 0.14) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .okoo-hero-tool::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 185, 66, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .okoo-hero-tool .hero-content {
            position: relative;
            z-index: 2;
        }
        .okoo-hero-tool .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(43, 197, 180, 0.14);
            color: var(--okoo-accent);
            font-size: 0.82rem;
            font-weight: 600;
            border-radius: 20px;
            padding: 6px 16px;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .okoo-hero-tool h1 {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 2.6rem;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }
        .okoo-hero-tool h1 .highlight {
            color: var(--okoo-highlight);
        }
        .okoo-hero-tool .hero-sub {
            font-size: 1.02rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 28px;
        }
        .okoo-hero-tool .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }
        .okoo-hero-tool .btn-primary-okoo {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: 10px;
            padding: 12px 28px;
            border: none;
            transition: all var(--okoo-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-hero-tool .btn-primary-okoo:hover {
            background: #f0a92c;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 185, 66, 0.35);
        }
        .okoo-hero-tool .btn-outline-okoo {
            background: transparent;
            color: var(--okoo-accent);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 10px;
            padding: 12px 28px;
            border: 1px solid var(--okoo-accent);
            transition: all var(--okoo-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .okoo-hero-tool .btn-outline-okoo:hover {
            background: rgba(43, 197, 180, 0.1);
            border-color: var(--okoo-accent);
            color: var(--okoo-accent);
            transform: translateY(-2px);
        }
        .okoo-hero-tool .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 40px;
            padding-top: 24px;
            border-top: 1px solid var(--okoo-border-dark);
        }
        .okoo-hero-tool .hero-metric {
            display: flex;
            align-items: baseline;
            gap: 8px;
        }
        .okoo-hero-tool .hero-metric .metric-value {
            font-family: var(--okoo-font-mono);
            font-weight: 600;
            font-size: 1.6rem;
            color: var(--okoo-highlight);
            letter-spacing: -0.02em;
        }
        .okoo-hero-tool .hero-metric .metric-unit {
            font-family: var(--okoo-font-mono);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .okoo-hero-tool .hero-metric .metric-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
        }

        /* 标签筛选工具栏 */
        .okoo-filter-bar {
            background: #fff;
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            box-shadow: var(--okoo-shadow);
            padding: 20px 24px;
            margin-top: -32px;
            position: relative;
            z-index: 10;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .okoo-filter-bar .filter-label {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--okoo-text-secondary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .okoo-filter-bar .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .okoo-filter-bar .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--okoo-bg-light);
            border: 1px solid var(--okoo-border-light);
            color: var(--okoo-text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            border-radius: 20px;
            padding: 6px 16px;
            cursor: pointer;
            transition: all var(--okoo-transition);
            user-select: none;
        }
        .okoo-filter-bar .filter-tag:hover {
            border-color: var(--okoo-accent);
            color: var(--okoo-accent);
            background: rgba(43, 197, 180, 0.05);
        }
        .okoo-filter-bar .filter-tag.active {
            background: var(--okoo-accent);
            border-color: var(--okoo-accent);
            color: var(--okoo-primary);
            font-weight: 600;
        }
        .okoo-filter-bar .filter-tag .tag-count {
            font-family: var(--okoo-font-mono);
            font-size: 0.75rem;
            background: rgba(0, 0, 0, 0.08);
            border-radius: 10px;
            padding: 1px 8px;
        }
        .okoo-filter-bar .filter-tag.active .tag-count {
            background: rgba(0, 0, 0, 0.15);
        }

        /* 资源列表 */
        .okoo-resource-section {
            padding: var(--okoo-section-pad) 0;
        }
        .okoo-resource-section .section-header {
            margin-bottom: 32px;
        }
        .okoo-resource-section .section-header h2 {
            font-family: var(--okoo-font-title);
            font-weight: 800;
            font-size: 1.75rem;
            color: var(--okoo-text);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .okoo-resource-section .section-header h2 .section-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(43, 197, 180, 0.12);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--okoo-accent);
            font-size: 1rem;
        }
        .okoo-resource-section .section-header p {
            color: var(--okoo-text-secondary);
            font-size: 0.95rem;
            margin: 0;
            max-width: 640px;
        }
        .okoo-resource-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .okoo-resource-item {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            box-shadow: var(--okoo-shadow);
            padding: 20px;
            display: flex;
            gap: 20px;
            transition: all var(--okoo-transition);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .okoo-resource-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--okoo-accent);
            opacity: 0;
            transition: opacity var(--okoo-transition);
        }
        .okoo-resource-item:hover {
            border-color: var(--okoo-accent);
            box-shadow: var(--okoo-shadow-hover);
            transform: translateY(-2px);
        }
        .okoo-resource-item:hover::before {
            opacity: 1;
        }
        .okoo-resource-item .resource-cover {
            width: 180px;
            min-width: 180px;
            height: 120px;
            border-radius: var(--okoo-radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            position: relative;
        }
        .okoo-resource-item .resource-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--okoo-transition);
        }
        .okoo-resource-item:hover .resource-cover img {
            transform: scale(1.06);
        }
        .okoo-resource-item .resource-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-width: 0;
        }
        .okoo-resource-item .resource-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .okoo-resource-item .resource-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(43, 197, 180, 0.1);
            color: var(--okoo-accent-dim);
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 6px;
            padding: 3px 10px;
        }
        .okoo-resource-item .resource-tag.highlight-tag {
            background: rgba(245, 185, 66, 0.14);
            color: #b07d1a;
        }
        .okoo-resource-item .resource-date {
            font-family: var(--okoo-font-mono);
            font-size: 0.78rem;
            color: var(--okoo-text-muted);
        }
        .okoo-resource-item .resource-title {
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.12rem;
            color: var(--okoo-text);
            margin: 0;
            line-height: 1.4;
        }
        .okoo-resource-item .resource-desc {
            font-size: 0.9rem;
            color: var(--okoo-text-secondary);
            line-height: 1.75;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .okoo-resource-item .resource-stats {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: auto;
            padding-top: 8px;
        }
        .okoo-resource-item .resource-stat {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--okoo-text-secondary);
        }
        .okoo-resource-item .resource-stat .stat-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--okoo-accent);
        }
        .okoo-resource-item .resource-stat .stat-dot.warn-dot {
            background: var(--okoo-warn);
        }
        .okoo-resource-item .resource-stat .stat-dot.highlight-dot {
            background: var(--okoo-highlight);
        }

        /* 统计概览条 */
        .okoo-stats-strip {
            background: var(--okoo-primary-soft);
            border-radius: var(--okoo-radius);
            padding: 28px 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px 40px;
            align-items: center;
            justify-content: space-between;
            border: 1px solid var(--okoo-border-dark);
            margin-top: 40px;
        }
        .okoo-stats-strip .strip-item {
            display: flex;
            align-items: baseline;
            gap: 10px;
        }
        .okoo-stats-strip .strip-value {
            font-family: var(--okoo-font-mono);
            font-weight: 600;
            font-size: 1.8rem;
            color: var(--okoo-accent);
            letter-spacing: -0.02em;
        }
        .okoo-stats-strip .strip-unit {
            font-family: var(--okoo-font-mono);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .okoo-stats-strip .strip-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
        }

        /* 工具优势 */
        .okoo-advantage-section {
            padding: var(--okoo-section-pad) 0;
            background: #fff;
            border-top: 1px solid var(--okoo-border-light);
            border-bottom: 1px solid var(--okoo-border-light);
        }
        .okoo-advantage-section .section-header {
            margin-bottom: 32px;
        }
        .okoo-advantage-section .section-header h2 {
            font-family: var(--okoo-font-title);
            font-weight: 800;
            font-size: 1.75rem;
            color: var(--okoo-text);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .okoo-advantage-section .section-header p {
            color: var(--okoo-text-secondary);
            font-size: 0.95rem;
            margin: 0;
            max-width: 640px;
        }
        .okoo-advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 991px) {
            .okoo-advantage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 575px) {
            .okoo-advantage-grid {
                grid-template-columns: 1fr;
            }
        }
        .okoo-advantage-card {
            background: var(--okoo-bg-light);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            padding: 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all var(--okoo-transition);
            position: relative;
        }
        .okoo-advantage-card:hover {
            border-color: var(--okoo-accent);
            box-shadow: var(--okoo-shadow-hover);
            transform: translateY(-2px);
        }
        .okoo-advantage-card .adv-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(43, 197, 180, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--okoo-accent);
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .okoo-advantage-card .adv-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--okoo-text);
            margin: 0;
        }
        .okoo-advantage-card .adv-desc {
            font-size: 0.88rem;
            color: var(--okoo-text-secondary);
            line-height: 1.75;
            margin: 0;
        }
        .okoo-advantage-card .adv-level {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--okoo-highlight);
            margin-top: auto;
            padding-top: 6px;
            border-top: 1px dashed var(--okoo-border-light);
        }

        /* FAQ */
        .okoo-faq-section {
            padding: var(--okoo-section-pad) 0;
        }
        .okoo-faq-section .section-header {
            margin-bottom: 28px;
            text-align: left;
        }
        .okoo-faq-section .section-header h2 {
            font-family: var(--okoo-font-title);
            font-weight: 800;
            font-size: 1.75rem;
            color: var(--okoo-text);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .okoo-faq-section .section-header p {
            color: var(--okoo-text-secondary);
            font-size: 0.95rem;
            margin: 0;
            max-width: 640px;
        }
        .okoo-faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 900px;
        }
        .okoo-faq-item {
            background: var(--okoo-card-bg);
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius-sm);
            overflow: hidden;
            transition: all var(--okoo-transition);
        }
        .okoo-faq-item:hover {
            border-color: var(--okoo-accent);
            box-shadow: var(--okoo-shadow);
        }
        .okoo-faq-item .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--okoo-text);
            user-select: none;
            transition: all var(--okoo-transition);
        }
        .okoo-faq-item .faq-question:hover {
            color: var(--okoo-accent-dim);
        }
        .okoo-faq-item .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(43, 197, 180, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--okoo-transition);
            font-size: 0.8rem;
            color: var(--okoo-accent);
        }
        .okoo-faq-item .faq-answer {
            padding: 0 20px 16px 60px;
            font-size: 0.9rem;
            color: var(--okoo-text-secondary);
            line-height: 1.85;
            display: none;
            border-left: 4px solid var(--okoo-accent);
            margin-left: 20px;
            margin-bottom: 16px;
            padding-left: 16px;
        }
        .okoo-faq-item.open .faq-answer {
            display: block;
        }
        .okoo-faq-item.open .faq-icon {
            background: var(--okoo-accent);
            color: var(--okoo-primary);
            transform: rotate(45deg);
        }
        .okoo-faq-item .faq-icon i {
            font-style: normal;
        }

        /* CTA */
        .okoo-cta-section {
            padding: var(--okoo-section-pad) 0;
            background: var(--okoo-primary);
            border-radius: var(--okoo-radius-lg);
            margin: 0 24px 60px;
            position: relative;
            overflow: hidden;
        }
        @media (max-width: 575px) {
            .okoo-cta-section {
                margin: 0 12px 40px;
                border-radius: var(--okoo-radius);
            }
        }
        .okoo-cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(43, 197, 180, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .okoo-cta-section .cta-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 28px;
            padding: 40px 32px;
        }
        .okoo-cta-section .cta-text h2 {
            font-family: var(--okoo-font-title);
            font-weight: 800;
            font-size: 1.5rem;
            color: #fff;
            margin-bottom: 8px;
        }
        .okoo-cta-section .cta-text p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.92rem;
            margin: 0;
            max-width: 480px;
        }
        .okoo-cta-section .cta-form-wrap {
            display: flex;
            flex-direction: column;
            gap: 12px;
            width: 100%;
            max-width: 420px;
        }
        .okoo-cta-section .cta-input {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            padding: 12px 18px;
            color: #fff;
            font-size: 0.92rem;
            transition: all var(--okoo-transition);
            width: 100%;
        }
        .okoo-cta-section .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .okoo-cta-section .cta-input:focus {
            outline: none;
            border-color: var(--okoo-accent);
            box-shadow: 0 0 0 3px rgba(43, 197, 180, 0.25);
        }
        .okoo-cta-section .cta-submit {
            background: var(--okoo-highlight);
            color: var(--okoo-primary);
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            border-radius: 10px;
            padding: 12px 28px;
            transition: all var(--okoo-transition);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .okoo-cta-section .cta-submit:hover {
            background: #f0a92c;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 185, 66, 0.3);
        }
        .okoo-cta-section .cta-privacy {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.45);
            margin: 0;
        }

        /* 扩展页脚 */
        .okoo-extended-footer {
            padding: 0 0 var(--okoo-section-pad);
        }
        .okoo-extended-footer .ext-inner {
            background: #fff;
            border: 1px solid var(--okoo-border-light);
            border-radius: var(--okoo-radius);
            box-shadow: var(--okoo-shadow);
            padding: 28px 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px 40px;
            align-items: center;
            justify-content: space-between;
        }
        .okoo-extended-footer .ext-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-family: var(--okoo-font-title);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--okoo-text);
        }
        .okoo-extended-footer .ext-brand .brand-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--okoo-primary);
            font-size: 0.9rem;
        }
        .okoo-extended-footer .ext-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .okoo-extended-footer .ext-links li a {
            font-size: 0.88rem;
            color: var(--okoo-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--okoo-transition);
        }
        .okoo-extended-footer .ext-links li a:hover {
            color: var(--okoo-accent);
        }
        .okoo-extended-footer .ext-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(43, 197, 180, 0.08);
            border: 1px solid rgba(43, 197, 180, 0.2);
            color: var(--okoo-accent-dim);
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 6px;
            padding: 4px 12px;
        }

        /* 页脚 */
        .okoo-footer {
            background: var(--okoo-primary);
            padding: 48px 0 28px;
            border-top: 1px solid var(--okoo-border-dark);
            color: rgba(255, 255, 255, 0.7);
        }
        .okoo-footer .footer-brand {
            font-family: var(--okoo-font-title);
            font-weight: 900;
            font-size: 1.3rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .okoo-footer .brand-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--okoo-accent), var(--okoo-highlight));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--okoo-primary);
            font-weight: 900;
        }
        .okoo-footer .footer-desc {
            font-size: 0.88rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }
        .okoo-footer .footer-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .okoo-footer .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .okoo-footer .footer-links a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            transition: all var(--okoo-transition);
        }
        .okoo-footer .footer-links a:hover {
            color: var(--okoo-accent);
        }
        .okoo-footer .footer-contact p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 8px;
        }
        .okoo-footer .footer-contact i {
            width: 20px;
            color: var(--okoo-accent);
        }
        .okoo-footer .footer-bottom {
            border-top: 1px solid var(--okoo-border-dark);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .okoo-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
            transition: color var(--okoo-transition);
        }
        .okoo-footer .footer-bottom a:hover {
            color: var(--okoo-accent);
        }

        /* 响应式调整 */
        @media (max-width: 991px) {
            .okoo-hero-tool h1 {
                font-size: 2.1rem;
            }
            .okoo-resource-item .resource-cover {
                width: 140px;
                min-width: 140px;
                height: 100px;
            }
            .okoo-stats-strip {
                padding: 20px 24px;
                gap: 16px 28px;
            }
            .okoo-stats-strip .strip-value {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 767px) {
            .okoo-hero-tool {
                padding: 36px 0 48px;
            }
            .okoo-hero-tool h1 {
                font-size: 1.7rem;
            }
            .okoo-resource-item {
                flex-direction: column;
                padding: 16px;
                gap: 14px;
            }
            .okoo-resource-item .resource-cover {
                width: 100%;
                min-width: 100%;
                height: 160px;
            }
            .okoo-filter-bar {
                padding: 14px 16px;
                gap: 10px;
            }
            .okoo-filter-bar .filter-tags {
                gap: 6px;
            }
            .okoo-filter-bar .filter-tag {
                font-size: 0.78rem;
                padding: 5px 12px;
            }
            .okoo-stats-strip {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .okoo-cta-section .cta-content {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .okoo-cta-section .cta-form-wrap {
                max-width: 100%;
            }
            .okoo-extended-footer .ext-inner {
                padding: 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .okoo-footer .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
        }
        @media (max-width: 575px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .okoo-hero-tool h1 {
                font-size: 1.45rem;
            }
            .okoo-hero-tool .hero-metrics {
                gap: 14px 24px;
            }
            .okoo-hero-tool .hero-metric .metric-value {
                font-size: 1.3rem;
            }
            .okoo-breadcrumb-bar .breadcrumb-wrap {
                flex-direction: column;
                align-items: flex-start;
            }
            .okoo-advantage-section .section-header h2 {
                font-size: 1.4rem;
            }
            .okoo-resource-section .section-header h2 {
                font-size: 1.4rem;
            }
            .okoo-faq-section .section-header h2 {
                font-size: 1.4rem;
            }
            .okoo-cta-section .cta-text h2 {
                font-size: 1.25rem;
            }
        }