/* roulang page: index */
:root {
            --bg-base: #0D1015;
            --bg-card: #161B22;
            --bg-surface: #1C232C;
            --primary: #C6FF4A;
            --primary-soft: rgba(198, 255, 74, 0.1);
            --accent: #FF5C3A;
            --accent-soft: rgba(255, 92, 58, 0.12);
            --text-main: #F5F7FA;
            --text-secondary: #AAB3C0;
            --text-muted: #6F7A86;
            --border-default: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.4);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'Roboto Mono', 'Space Mono', monospace;
            --section-space: 96px;
            --section-space-mobile: 56px;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.35s ease;
            --transition-slow: 0.6s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #d8ff7a;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 自定义导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 16, 21, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-default);
            transition: box-shadow var(--transition-medium);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .site-header .navbar {
            padding-top: 12px;
            padding-bottom: 12px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--text-main);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .navbar-brand-custom:hover {
            color: var(--primary);
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #0D1015;
            border-radius: 10px;
            font-weight: 800;
            font-size: 18px;
            flex-shrink: 0;
        }

        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link:focus {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }

        .navbar-nav-custom .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .navbar-nav-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .lang-switch:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .lang-switch .divider {
            width: 1px;
            height: 14px;
            background: var(--border-light);
        }

        .navbar-toggler-custom {
            border: none;
            background: transparent;
            color: var(--text-main);
            font-size: 24px;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler-custom:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 992px) {
            .navbar-nav-custom {
                padding-top: 12px;
                gap: 4px;
            }

            .navbar-nav-custom .nav-link {
                padding: 12px 16px;
                font-size: 16px;
            }

            .lang-switch {
                margin-top: 12px;
                align-self: flex-start;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            padding: 80px 0 96px;
            background-image: url('/assets/images/4057c26293517a85.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
            isolation: isolate;
            border-bottom: 1px solid var(--border-default);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 16, 21, 0.95) 0%, rgba(13, 16, 21, 0.75) 45%, rgba(13, 16, 21, 0.55) 100%);
            z-index: -1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 650px;
            height: 650px;
            background: radial-gradient(circle, rgba(198, 255, 74, 0.08) 0%, transparent 65%);
            z-index: -1;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 56px;
            align-items: center;
        }

        @media (max-width: 992px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            border: 1px solid rgba(198, 255, 74, 0.25);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
        }

        .hero-badge .live-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        .hero-title {
            font-size: 56px;
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 20px;
        }

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

        @media (max-width: 576px) {
            .hero-title {
                font-size: 36px;
                line-height: 1.25;
            }
        }

        .hero-description {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .btn-custom-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #0D1015;
            border: none;
            border-radius: var(--radius-pill);
            padding: 12px 28px;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.01em;
            transition: all var(--transition-medium);
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(198, 255, 74, 0.25);
        }

        .btn-custom-primary:hover {
            background: #d8ff7a;
            color: #0D1015;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(198, 255, 74, 0.35);
        }

        .btn-custom-primary .live-dot {
            width: 7px;
            height: 7px;
            background: #0D1015;
            border-radius: 50%;
            animation: pulse-dot-dark 1.6s ease-in-out infinite;
        }

        @keyframes pulse-dot-dark {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .btn-custom-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-medium);
            cursor: pointer;
        }

        .btn-custom-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
            transform: translateY(-2px);
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-value {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .hero-stat-value .unit {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 400;
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .hero-preview-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium);
        }

        .hero-preview-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 28px 56px rgba(0, 0, 0, 0.5);
        }

        .hero-preview-image {
            width: 100%;
            height: 280px;
            object-fit: cover;
            display: block;
        }

        .hero-preview-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 24px;
            background: linear-gradient(transparent, rgba(13, 16, 21, 0.85));
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .hero-preview-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-soft);
            color: var(--accent);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .hero-preview-match {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }

        .hero-preview-league {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* Section 通用 */
        .section-block {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-block.bg-alt {
            background: rgba(255, 255, 255, 0.015);
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
        }

        @media (max-width: 576px) {
            .section-block {
                padding: var(--section-space-mobile) 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-title .accent {
            color: var(--primary);
        }

        .section-description {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }

        @media (max-width: 576px) {
            .section-title {
                font-size: 26px;
            }
            .section-description {
                font-size: 15px;
            }
        }

        /* 直播数据条 */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        @media (max-width: 768px) {
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .data-strip-item {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            text-align: center;
            transition: all var(--transition-medium);
        }

        .data-strip-item:hover {
            border-color: rgba(198, 255, 74, 0.3);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .data-strip-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .data-strip-label {
            font-size: 14px;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }

        /* 痛点模块 */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        @media (max-width: 768px) {
            .pain-grid {
                grid-template-columns: 1fr;
            }
        }

        .pain-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-medium);
            position: relative;
        }

        .pain-card:hover {
            border-color: rgba(255, 92, 58, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .pain-card-icon {
            width: 48px;
            height: 48px;
            background: var(--accent-soft);
            color: var(--accent);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .pain-card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .pain-card-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 解决方案 Bento */
        .bento-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 16px;
        }

        .bento-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition-medium);
            position: relative;
            overflow: hidden;
        }

        .bento-card:hover {
            border-color: rgba(198, 255, 74, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .bento-card.col-span-4 {
            grid-column: span 4;
        }
        .bento-card.col-span-3 {
            grid-column: span 3;
        }
        .bento-card.col-span-5 {
            grid-column: span 5;
        }
        .bento-card.col-span-7 {
            grid-column: span 7;
        }
        .bento-card.col-span-8 {
            grid-column: span 8;
        }
        .bento-card.col-span-12 {
            grid-column: span 12;
        }

        @media (max-width: 992px) {
            .bento-card.col-span-4,
            .bento-card.col-span-3,
            .bento-card.col-span-5,
            .bento-card.col-span-7,
            .bento-card.col-span-8 {
                grid-column: span 6;
            }
        }

        @media (max-width: 576px) {
            .bento-card.col-span-4,
            .bento-card.col-span-3,
            .bento-card.col-span-5,
            .bento-card.col-span-7,
            .bento-card.col-span-8,
            .bento-card.col-span-12 {
                grid-column: span 12;
            }
        }

        .bento-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-soft);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .bento-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .bento-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .bento-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            border-radius: var(--radius-pill);
            padding: 2px 10px;
            margin-top: 12px;
        }

        /* 方法步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step-counter;
        }

        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
            transition: all var(--transition-medium);
            counter-increment: step-counter;
        }

        .step-card:hover {
            border-color: rgba(198, 255, 74, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            font-family: var(--font-mono);
            font-size: 48px;
            font-weight: 700;
            color: rgba(198, 255, 74, 0.18);
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
        }

        .step-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            padding-right: 44px;
        }

        .step-card-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 成果数据 */
        .result-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
            overflow: hidden;
        }

        .result-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(198, 255, 74, 0.06), transparent 70%);
            pointer-events: none;
        }

        @media (max-width: 768px) {
            .result-panel {
                grid-template-columns: repeat(2, 1fr);
                padding: 28px 24px;
            }
        }

        .result-item {
            text-align: center;
        }

        .result-value {
            font-family: var(--font-mono);
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }

        .result-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* 客户证言 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        @media (max-width: 992px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-medium);
            position: relative;
        }

        .testimonial-card:hover {
            border-color: rgba(198, 255, 74, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .testimonial-quote {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
            font-style: italic;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid var(--border-light);
            flex-shrink: 0;
        }

        .testimonial-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
        }

        .testimonial-role {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 适用人群 */
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 14px;
        }

        @media (max-width: 992px) {
            .audience-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .audience-grid {
                grid-template-columns: 1fr;
            }
        }

        .audience-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            transition: all var(--transition-medium);
        }

        .audience-card:hover {
            border-color: rgba(198, 255, 74, 0.25);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .audience-icon {
            width: 44px;
            height: 44px;
            background: var(--primary-soft);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin: 0 auto 12px;
        }

        .audience-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .audience-text {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 场景专题 - 分类入口 */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        @media (max-width: 992px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
        }

        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-medium);
            display: block;
            position: relative;
            text-decoration: none;
        }

        .category-card:hover {
            border-color: rgba(198, 255, 74, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .category-card:hover .category-image {
            transform: scale(1.03);
        }

        .category-image-wrap {
            overflow: hidden;
            height: 160px;
            position: relative;
        }

        .category-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-medium);
        }

        .category-image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(transparent, rgba(13, 16, 21, 0.7));
        }

        .category-card-body {
            padding: 16px 18px 20px;
        }

        .category-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .category-card-text {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .category-card-arrow {
            position: absolute;
            bottom: 16px;
            right: 16px;
            color: var(--primary);
            font-size: 14px;
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .category-card:hover .category-card-arrow {
            opacity: 1;
        }

        /* 新闻中心 */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .news-item {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            display: grid;
            grid-template-columns: 140px 1fr auto;
            gap: 20px;
            align-items: center;
            transition: all var(--transition-medium);
        }

        .news-item:hover {
            border-color: rgba(198, 255, 74, 0.2);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .news-item {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 18px 20px;
            }
        }

        .news-date {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            white-space: nowrap;
        }

        .news-content {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .news-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .news-read-more:hover {
            color: #d8ff7a;
            gap: 10px;
        }

        /* 数据指标 */
        .metrics-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 36px;
        }

        @media (max-width: 768px) {
            .metrics-panel {
                grid-template-columns: 1fr;
                padding: 24px 20px;
            }
        }

        .metric-bar-item {
            margin-bottom: 20px;
        }

        .metric-bar-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 8px;
        }

        .metric-bar-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .metric-bar-value {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
        }

        .metric-bar-track {
            width: 100%;
            height: 6px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 3px;
            overflow: hidden;
        }

        .metric-bar-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--primary);
            transition: width 1.2s ease;
        }

        .metric-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .metric-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-pill);
            padding: 6px 14px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .metric-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .metric-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        /* 品牌介绍 */
        .brand-intro-section {
            position: relative;
            background-image: url('/assets/images/63d99eaca19da75e.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            overflow: hidden;
            isolation: isolate;
            padding: 80px 0;
        }

        .brand-intro-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 16, 21, 0.88);
            z-index: -1;
        }

        .brand-intro-card {
            background: rgba(22, 27, 34, 0.92);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            max-width: 820px;
        }

        .brand-intro-text {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2;
            margin-bottom: 0;
        }

        .brand-intro-text strong {
            color: var(--text-main);
        }

        /* FAQ */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-accordion .accordion-header {
            margin: 0;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-main);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 24px;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-surface);
            color: var(--primary);
            box-shadow: none;
            border-bottom: 1px solid var(--border-default);
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .faq-accordion .accordion-button::after {
            filter: invert(1);
            opacity: 0.6;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }

        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            padding: 20px 24px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(198, 255, 74, 0.06), rgba(13, 16, 21, 0.9));
            border-top: 1px solid rgba(198, 255, 74, 0.15);
            border-bottom: 1px solid rgba(198, 255, 74, 0.15);
        }

        .cta-panel {
            text-align: center;
            padding: 56px 24px;
        }

        .cta-title {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .cta-text {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        /* 订阅 */
        .subscribe-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .subscribe-panel {
                grid-template-columns: 1fr;
                padding: 24px 20px;
            }
        }

        .subscribe-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .subscribe-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
        }

        @media (max-width: 576px) {
            .subscribe-form {
                flex-direction: column;
            }
        }

        .subscribe-input {
            flex: 1;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            padding: 12px 20px;
            color: var(--text-main);
            font-size: 15px;
            transition: border-color var(--transition-fast);
            min-width: 0;
        }

        .subscribe-input::placeholder {
            color: var(--text-muted);
        }

        .subscribe-input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 2px rgba(198, 255, 74, 0.15);
        }

        .subscribe-btn {
            background: var(--primary);
            color: #0D1015;
            border: none;
            border-radius: var(--radius-pill);
            padding: 12px 24px;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-medium);
        }

        .subscribe-btn:hover {
            background: #d8ff7a;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(198, 255, 74, 0.3);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-base);
            border-top: 1px solid var(--border-default);
            padding: 56px 0 32px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer-brand .navbar-brand-custom {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .footer-brand-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-column-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-contact {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-default);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .footer-copyright {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-legal-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-legal-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-legal-links a:hover {
            color: var(--primary);
        }

        /* 动画 */
        .fade-in {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }

        .fade-in.active {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            .fade-in {
                opacity: 1;
                transform: translateY(0);
                transition: none;
            }
            .hero-preview-card:hover,
            .pain-card:hover,
            .bento-card:hover,
            .step-card:hover,
            .testimonial-card:hover,
            .audience-card:hover,
            .category-card:hover,
            .news-item:hover,
            .data-strip-item:hover,
            .btn-custom-primary:hover,
            .btn-custom-secondary:hover,
            .subscribe-btn:hover {
                transform: none;
            }
        }

        /* 响应式额外修正 */
        @media (max-width: 576px) {
            .hero-section {
                padding: 48px 0 64px;
            }
            .hero-preview-image {
                height: 200px;
            }
            .result-value {
                font-size: 32px;
            }
            .data-strip-value {
                font-size: 26px;
            }
            .brand-intro-card {
                padding: 24px 20px;
            }
            .brand-intro-text {
                font-size: 15px;
            }
            .cta-title {
                font-size: 28px;
            }
        }

        @media (max-width: 380px) {
            .hero-title {
                font-size: 30px;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .hero-stat-value {
                font-size: 20px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-base: #0D1015;
            --bg-card: #161B22;
            --bg-surface: #1C232C;
            --primary: #C6FF4A;
            --primary-soft: rgba(198, 255, 74, 0.1);
            --accent: #FF5C3A;
            --accent-soft: rgba(255, 92, 58, 0.12);
            --text-main: #F5F7FA;
            --text-secondary: #AAB3C0;
            --text-muted: #6F7A86;
            --border-default: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.4);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'Roboto Mono', 'Space Mono', monospace;
            --section-space: 96px;
            --section-space-mobile: 56px;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.35s ease;
            --transition-slow: 0.6s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #d8ff7a;
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 16, 21, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-default);
            transition: box-shadow var(--transition-medium);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .site-header .navbar {
            padding-top: 12px;
            padding-bottom: 12px;
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--text-main);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .navbar-brand-custom:hover {
            color: var(--primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #0D1015;
            border-radius: 10px;
            font-weight: 800;
            font-size: 18px;
            flex-shrink: 0;
        }
        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link:focus {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }
        .navbar-nav-custom .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .navbar-nav-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            color: var(--text-secondary);
            font-size: 13px;
            padding: 6px 12px;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .lang-switch:hover {
            border-color: var(--primary);
            color: var(--text-main);
        }
        .lang-switch .divider {
            width: 1px;
            height: 14px;
            background: var(--border-light);
        }
        .navbar-toggler-custom {
            border: none;
            background: transparent;
            color: var(--text-main);
            font-size: 24px;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .navbar-toggler-custom:hover {
            background: rgba(255, 255, 255, 0.06);
        }
        @media (max-width: 992px) {
            .navbar-nav-custom {
                padding-top: 12px;
                gap: 4px;
            }
            .navbar-nav-custom .nav-link {
                padding: 12px 16px;
                font-size: 16px;
            }
            .lang-switch {
                margin-top: 8px;
            }
        }
        /* Steps */
        .category-header {
            padding: 56px 0 48px;
            background: var(--bg-base);
            border-bottom: 1px solid var(--border-default);
            position: relative;
            overflow: hidden;
        }
        .category-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(198, 255, 74, 0.03) 1px, transparent 1px),
                            linear-gradient(90deg, rgba(198, 255, 74, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }
        .category-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom i {
            font-size: 12px;
        }
        .category-title-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .category-title-row h1 {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin: 0;
            color: var(--text-main);
            line-height: 1.2;
        }
        .category-result-count {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--text-muted);
            background: var(--bg-surface);
            border: 1px solid var(--border-default);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        /* Filter toolbar */
        .filter-toolbar {
            padding: 24px 0;
            margin-bottom: 16px;
        }
        .filter-toolbar .form-select {
            background-color: var(--bg-surface);
            color: var(--text-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 14px;
            padding: 9px 14px;
            cursor: pointer;
            transition: border-color var(--transition-fast);
        }
        .filter-toolbar .form-select:focus {
            border-color: var(--primary);
            box-shadow: none;
        }
        .filter-toolbar .form-select option {
            background: var(--bg-surface);
            color: var(--text-main);
        }
        .btn-outline-light-custom {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            border-radius: var(--radius-pill);
            padding: 8px 18px;
            font-size: 14px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-outline-light-custom:hover,
        .btn-outline-light-custom.active-filter {
            background: var(--primary-soft);
            border-color: var(--primary);
            color: var(--primary);
        }
        /* Event cards list */
        .events-list-section {
            padding: 24px 0 72px;
        }
        .event-card-row {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .event-card {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 18px 22px;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
            text-decoration: none;
            color: var(--text-main);
        }
        .event-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
            color: var(--text-main);
        }
        .event-card img {
            width: 120px;
            height: 80px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .event-card-body {
            flex: 1;
            min-width: 0;
        }
        .event-card-title {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .event-card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 8px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .event-card-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .badge-custom {
            font-family: var(--font-mono);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            background: var(--bg-surface);
            color: var(--text-secondary);
            border: 1px solid var(--border-default);
            white-space: nowrap;
        }
        .badge-live {
            background: var(--accent-soft);
            color: var(--accent);
            border-color: rgba(255, 92, 58, 0.3);
        }
        .badge-upcoming {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: rgba(198, 255, 74, 0.3);
        }
        .badge-replay {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            border-color: var(--border-default);
        }
        .event-card-arrow {
            color: var(--text-muted);
            font-size: 18px;
            transition: color var(--transition-fast), transform var(--transition-fast);
            flex-shrink: 0;
        }
        .event-card:hover .event-card-arrow {
            color: var(--primary);
            transform: translateX(4px);
        }
        /* View more */
        .view-more-wrapper {
            text-align: center;
            margin-top: 28px;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #0D1015;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            border: none;
            cursor: pointer;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }
        .btn-primary-custom:hover {
            background: #d8ff7a;
            transform: translateY(-2px);
            color: #0D1015;
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        /* Data panel */
        .data-panel-section {
            padding: 56px 0 72px;
            background: var(--bg-card);
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-item {
            text-align: center;
            padding: 24px 16px;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-default);
        }
        .data-item-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .data-item-label {
            font-size: 14px;
            color: var(--text-secondary);
        }
        /* Sub-theme */
        .sub-theme-section {
            padding: 72px 0;
        }
        .section-heading {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            color: var(--text-main);
        }
        .sub-theme-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .sub-theme-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
        }
        .sub-theme-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .sub-theme-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 16px;
            display: block;
        }
        .sub-theme-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .sub-theme-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        /* Steps */
        .steps-section {
            padding: 72px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .step-item {
            position: relative;
            padding: 28px 24px;
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-default);
        }
        .step-number {
            font-family: var(--font-mono);
            font-size: 42px;
            font-weight: 700;
            color: var(--primary-soft);
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
        }
        .step-item h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        /* Related articles */
        .related-section {
            padding: 72px 0;
        }
        .related-articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 22px;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .article-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .article-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 14px;
            flex: 1;
        }
        .article-card .btn-text {
            align-self: flex-start;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-card .btn-text:hover {
            color: #d8ff7a;
        }
        /* FAQ */
        .faq-section {
            padding: 72px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
        }
        .accordion-custom .accordion-item {
            background: transparent;
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-custom .accordion-header {
            margin: 0;
        }
        .accordion-custom .accordion-button {
            background: var(--bg-surface);
            color: var(--text-main);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            border-radius: 0 !important;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--bg-surface);
            color: var(--primary);
            box-shadow: none;
        }
        .accordion-custom .accordion-button::after {
            background-image: none;
            content: '+';
            font-family: var(--font-mono);
            font-size: 22px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            transition: transform var(--transition-fast);
        }
        .accordion-custom .accordion-button:not(.collapsed)::after {
            content: '-';
            color: var(--primary);
            transform: rotate(0deg);
        }
        .accordion-custom .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 15px;
            padding: 18px 22px;
            line-height: 1.7;
        }
        /* CTA */
        .cta-section {
            padding: 72px 0;
        }
        .cta-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            background: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            flex-wrap: wrap;
        }
        .cta-panel h2 {
            font-size: 24px;
            font-weight: 800;
            margin: 0 0 8px;
            color: var(--text-main);
        }
        .cta-panel p {
            margin: 0;
            color: var(--text-secondary);
            font-size: 15px;
        }
        .cta-panel .btn-primary-custom {
            flex-shrink: 0;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-default);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand-text {
            color: var(--text-secondary);
            font-size: 14px;
            margin-top: 16px;
            line-height: 1.7;
        }
        .footer-column-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-contact {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-default);
        }
        .footer-copyright {
            color: var(--text-muted);
            font-size: 13px;
        }
        .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
        }
        .footer-legal-links a {
            color: var(--text-muted);
        }
        .footer-legal-links a:hover {
            color: var(--primary);
        }
        @media (max-width: 992px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .sub-theme-cards,
            .steps-grid,
            .related-articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .category-title-row h1 {
                font-size: 30px;
            }
            .event-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 16px;
            }
            .event-card img {
                width: 100%;
                height: 160px;
            }
            .event-card-arrow {
                align-self: flex-end;
            }
            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 576px) {
            .sub-theme-cards,
            .steps-grid,
            .related-articles-grid,
            .data-grid {
                grid-template-columns: 1fr;
            }
            .filter-toolbar {
                flex-direction: column;
                gap: 10px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-base: #0D1015;
            --bg-card: #161B22;
            --bg-surface: #1C232C;
            --primary: #C6FF4A;
            --primary-soft: rgba(198, 255, 74, 0.1);
            --accent: #FF5C3A;
            --accent-soft: rgba(255, 92, 58, 0.12);
            --text-main: #F5F7FA;
            --text-secondary: #AAB3C0;
            --text-muted: #6F7A86;
            --border-default: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.4);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'Roboto Mono', 'Space Mono', monospace;
            --section-space: 96px;
            --section-space-mobile: 56px;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.35s ease;
            --transition-slow: 0.6s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #d8ff7a;
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 16, 21, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-default);
            transition: box-shadow var(--transition-medium);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .site-header .navbar {
            padding-top: 12px;
            padding-bottom: 12px;
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--text-main);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .navbar-brand-custom:hover {
            color: var(--primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #0D1015;
            border-radius: 10px;
            font-weight: 800;
            font-size: 18px;
            flex-shrink: 0;
        }
        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link:focus {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }
        .navbar-nav-custom .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .navbar-nav-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .lang-switch:hover {
            border-color: var(--primary);
            color: var(--text-main);
            background: var(--primary-soft);
        }
        .lang-switch .divider {
            width: 1px;
            height: 14px;
            background: var(--border-light);
        }
        .navbar-toggler-custom {
            border: none;
            background: transparent;
            color: var(--text-main);
            font-size: 24px;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .navbar-toggler-custom:hover {
            background: rgba(255, 255, 255, 0.06);
        }
        @media (max-width: 991px) {
            .navbar-nav-custom {
                padding-top: 12px;
                gap: 4px;
            }
            .navbar-nav-custom .nav-link {
                padding: 12px 16px;
                font-size: 16px;
            }
            .lang-switch {
                margin-top: 8px;
            }
        }
        /* 页面分类头 */
        .page-category-header {
            padding: 40px 0 32px;
            background: var(--bg-base);
            border-bottom: 1px solid var(--border-default);
            position: relative;
            overflow: hidden;
        }
        .page-category-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(255, 255, 255, 0.02) 39px, rgba(255, 255, 255, 0.02) 40px),
                repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(255, 255, 255, 0.02) 39px, rgba(255, 255, 255, 0.02) 40px);
            pointer-events: none;
        }
        .page-category-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .separator {
            color: var(--text-muted);
            font-size: 10px;
        }
        .category-heading-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .category-heading-row h1 {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin: 0;
            line-height: 1.3;
        }
        .category-heading-row h1 .accent-text {
            color: var(--primary);
        }
        .result-count {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        /* 筛选工具栏 */
        .filter-toolbar {
            padding: 16px 0;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-default);
            position: sticky;
            top: 72px;
            z-index: 500;
        }
        .filter-toolbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-btn {
            padding: 7px 16px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--text-main);
            background: var(--primary-soft);
        }
        .filter-btn.active {
            border-color: var(--primary);
            color: #0D1015;
            background: var(--primary);
            font-weight: 700;
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .filter-sort select {
            padding: 7px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            background: var(--bg-surface);
            color: var(--text-main);
            font-size: 13px;
            cursor: pointer;
            transition: border-color var(--transition-fast);
            appearance: none;
            -webkit-appearance: none;
        }
        .filter-sort select:focus {
            border-color: var(--primary);
            outline: none;
        }
        /* 通用 section */
        .section-block {
            padding: var(--section-space) 0;
        }
        @media (max-width: 576px) {
            .section-block {
                padding: var(--section-space-mobile) 0;
            }
        }
        .section-title {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 680px;
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-header .section-title {
            margin-bottom: 8px;
        }
        .section-header .section-subtitle {
            margin-bottom: 0;
        }
        /* 卡片 */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .card-custom .card-img-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            flex-shrink: 0;
        }
        .card-custom .card-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-medium);
        }
        .card-custom:hover .card-img-wrapper img {
            transform: scale(1.03);
        }
        .card-custom .card-body-custom {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-custom .card-title {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-custom .card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: 12px;
        }
        .card-custom .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }
        .badge-custom {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.01em;
            background: var(--accent-soft);
            color: var(--accent);
            border: 1px solid rgba(255, 92, 58, 0.25);
        }
        .badge-custom.badge-green {
            background: var(--primary-soft);
            color: var(--primary);
            border: 1px solid rgba(198, 255, 74, 0.25);
        }
        .badge-custom.badge-gray {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            border: 1px solid var(--border-default);
        }
        /* 按钮 */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
            line-height: 1.5;
        }
        .btn-primary-custom {
            background: var(--primary);
            color: #0D1015;
        }
        .btn-primary-custom:hover {
            background: #d8ff7a;
            color: #0D1015;
            box-shadow: 0 6px 20px rgba(198, 255, 74, 0.3);
            transform: translateY(-1px);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-light);
        }
        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            border-color: var(--primary);
        }
        .btn-accent-custom {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent-custom:hover {
            background: #ff7a5c;
            color: #fff;
            box-shadow: 0 6px 20px rgba(255, 92, 58, 0.3);
            transform: translateY(-1px);
        }
        .btn-sm-custom {
            padding: 7px 16px;
            font-size: 13px;
        }
        /* 数据看板 */
        .stats-dashboard {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
        }
        .stats-dashboard .stat-item {
            text-align: center;
            padding: 8px 0;
        }
        .stats-dashboard .stat-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stats-dashboard .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        /* 热门游戏类型卡片 */
        .game-type-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 22px;
            height: 100%;
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }
        .game-type-card:hover {
            border-color: var(--primary);
            background: var(--bg-surface);
        }
        .game-type-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: var(--primary-soft);
            color: var(--primary);
        }
        .game-type-card .game-type-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-top: 4px;
        }
        .game-type-card .game-type-count {
            font-size: 13px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }
        /* 步骤 */
        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            height: 100%;
        }
        .step-item:hover {
            border-color: var(--border-light);
            background: var(--bg-surface);
        }
        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #0D1015;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-family: var(--font-mono);
        }
        .step-content .step-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .step-content .step-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        /* 相关文章 */
        .article-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            margin-bottom: 12px;
        }
        .article-item:hover {
            border-color: var(--border-light);
            background: var(--bg-surface);
        }
        .article-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            padding-top: 2px;
            flex-shrink: 0;
        }
        .article-info .article-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .article-info .article-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        /* FAQ */
        .accordion-custom .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-custom .accordion-button {
            background: var(--bg-card);
            color: var(--text-main);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            transition: all var(--transition-fast);
            cursor: pointer;
            width: 100%;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .accordion-custom .accordion-button:hover {
            background: var(--bg-surface);
            color: var(--primary);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--bg-surface);
            color: var(--primary);
        }
        .accordion-custom .accordion-button .accordion-icon {
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .accordion-custom .accordion-button:not(.collapsed) .accordion-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .accordion-custom .accordion-body {
            padding: 0 22px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            background: var(--bg-card);
        }
        /* CTA 面板 */
        .cta-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(198, 255, 74, 0.05);
            pointer-events: none;
        }
        .cta-panel .cta-title {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-main);
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }
        .cta-panel .cta-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            max-width: 560px;
        }
        .cta-panel .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        /* 页脚 */
        .site-footer {
            background: #0A0D11;
            border-top: 1px solid var(--border-default);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-brand-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 12px;
            max-width: 320px;
        }
        .footer-column-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-contact {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-default);
        }
        .footer-copyright {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
        }
        .footer-legal-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-legal-links a:hover {
            color: var(--primary);
        }
        /* 查看更多 */
        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap var(--transition-fast), color var(--transition-fast);
        }
        .view-more-link:hover {
            gap: 10px;
            color: #d8ff7a;
        }
        /* 淡入动画 */
        .fade-in-section {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }
        .fade-in-section.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category3 */
:root {
  --bg-base: #0D1015;
  --bg-card: #161B22;
  --bg-surface: #1C232C;
  --primary: #C6FF4A;
  --primary-soft: rgba(198, 255, 74, 0.1);
  --accent: #FF5C3A;
  --accent-soft: rgba(255, 92, 58, 0.12);
  --text-main: #F5F7FA;
  --text-secondary: #AAB3C0;
  --text-muted: #6F7A86;
  --border-default: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.4);
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Roboto Mono', 'Space Mono', monospace;
  --section-space: 96px;
  --section-space-mobile: 56px;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.35s ease;
  --transition-slow: 0.6s ease;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #d8ff7a;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

.container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}

/* 导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 16, 21, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-default);
  transition: box-shadow var(--transition-medium);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.site-header .navbar {
  padding-top: 12px;
  padding-bottom: 12px;
}

.navbar-brand-custom {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
  color: var(--text-main);
  letter-spacing: -0.02em;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.navbar-brand-custom:hover {
  color: var(--primary);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #0D1015;
  border-radius: 10px;
  font-weight: 800;
  font-size: 18px;
  flex-shrink: 0;
}

.navbar-nav-custom .nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 15px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.navbar-nav-custom .nav-link:hover,
.navbar-nav-custom .nav-link:focus {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}

.navbar-nav-custom .nav-link.active {
  color: var(--primary);
  background: var(--primary-soft);
}

.navbar-nav-custom .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.lang-switch:hover {
  border-color: var(--primary);
  color: var(--text-main);
  background: var(--primary-soft);
}

.lang-switch .divider {
  width: 1px;
  height: 14px;
  background: var(--border-light);
}

.navbar-toggler-custom {
  border: none;
  background: transparent;
  color: var(--text-main);
  font-size: 24px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar-toggler-custom:hover {
  background: rgba(255, 255, 255, 0.06);
}

.navbar-nav-custom {
  padding-top: 12px;
  gap: 4px;
}

.navbar-nav-custom .nav-link {
  padding: 12px 16px;
  font-size: 16px;
}

/* 分类头 */
.page-header-section {
  position: relative;
  padding: 48px 0 40px;
  background: linear-gradient(180deg, rgba(198, 255, 74, 0.03) 0%, rgba(13, 16, 21, 0) 100%);
  border-bottom: 1px solid var(--border-default);
  overflow: hidden;
}

.page-header-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background-image: repeating-linear-gradient(90deg, rgba(198, 255, 74, 0.04) 0px, rgba(198, 255, 74, 0.04) 1px, transparent 1px, transparent 20px);
  pointer-events: none;
}

.page-header-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.page-header-title {
  flex: 1;
  min-width: 280px;
}

.page-header-title h1 {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.3;
}

.page-header-title p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 0;
  max-width: 560px;
}

.page-header-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  flex-shrink: 0;
}

.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}

.breadcrumb-custom a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb-custom a:hover {
  color: var(--primary);
}

.breadcrumb-custom .separator {
  color: var(--text-muted);
  font-size: 11px;
}

.breadcrumb-custom .current {
  color: var(--primary);
  font-weight: 500;
}

.result-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.result-count .dot {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  display: inline-block;
}

/* 数据看板 */
.stats-strip-section {
  padding: 40px 0 28px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.stat-card .stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 4px;
}

.stat-card .stat-icon.green {
  background: var(--primary-soft);
  color: var(--primary);
}

.stat-card .stat-icon.orange {
  background: var(--accent-soft);
  color: var(--accent);
}

.stat-card .stat-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-main);
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-card .stat-trend {
  font-size: 12px;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-card .stat-trend.up {
  color: var(--primary);
}

.stat-card .stat-trend.down {
  color: var(--accent);
}

/* 筛选工具栏 */
.filter-toolbar-section {
  padding: 32px 0 20px;
}

.filter-toolbar {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  margin-right: 4px;
  white-space: nowrap;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--primary);
  color: var(--text-main);
  background: var(--primary-soft);
}

.filter-btn.active {
  background: var(--primary);
  color: #0D1015;
  border-color: var(--primary);
  font-weight: 600;
}

.filter-btn .fa {
  font-size: 11px;
}

/* 排行榜列表 */
.rank-list-section {
  padding: 20px 0 48px;
}

.rank-list-wrapper {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.rank-item {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.rank-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background var(--transition-fast);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.rank-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.rank-item:hover::before {
  background: var(--primary);
}

.rank-item.top-1 {
  border-color: rgba(198, 255, 74, 0.3);
}

.rank-item.top-1::before {
  background: var(--primary);
}

.rank-item.top-2 {
  border-color: rgba(170, 179, 192, 0.25);
}

.rank-item.top-2::before {
  background: #D4D9E0;
}

.rank-item.top-3 {
  border-color: rgba(255, 92, 58, 0.25);
}

.rank-item.top-3::before {
  background: var(--accent);
}

.rank-number {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  min-width: 56px;
  text-align: center;
  letter-spacing: -0.02em;
  line-height: 1;
  flex-shrink: 0;
}

.rank-number.rank-1 {
  color: var(--primary);
}

.rank-number.rank-2 {
  color: #D4D9E0;
}

.rank-number.rank-3 {
  color: var(--accent);
}

.rank-number.rank-normal {
  color: var(--text-muted);
  font-size: 28px;
}

.rank-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--border-light);
  transition: border-color var(--transition-fast);
  background: var(--bg-surface);
}

.rank-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.rank-item:hover .rank-avatar img {
  transform: scale(1.05);
}

.rank-item:hover .rank-avatar {
  border-color: var(--primary);
}

.rank-info {
  flex: 1;
  min-width: 180px;
}

.rank-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.rank-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.rank-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.rank-tag.game {
  background: var(--primary-soft);
  color: var(--primary);
}

.rank-tag.outdoor {
  background: rgba(74, 222, 128, 0.12);
  color: #4ADE80;
}

.rank-tag.ecommerce {
  background: rgba(232, 121, 249, 0.12);
  color: #E879F9;
}

.rank-tag.music {
  background: rgba(96, 165, 250, 0.12);
  color: #60A5FA;
}

.rank-tag.sports {
  background: var(--accent-soft);
  color: var(--accent);
}

.rank-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 460px;
}

.rank-data {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}

.rank-heat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
}

.rank-heat .fa-fire {
  font-size: 13px;
}

.rank-fans {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}

.rank-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
}

.rank-status .status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.rank-status.offline {
  color: var(--text-muted);
}

.rank-status.offline .status-dot {
  background: var(--text-muted);
  animation: none;
}

/* 查看更多按钮 */
.view-more-wrapper {
  display: flex;
  justify-content: center;
  padding-top: 28px;
}

.btn-view-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 28px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-view-more:hover {
  background: var(--primary);
  color: #0D1015;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(198, 255, 74, 0.25);
}

.btn-view-more .fa {
  transition: transform var(--transition-fast);
}

.btn-view-more:hover .fa {
  transform: translateX(4px);
}

/* 子主题说明 */
.topic-section {
  padding: 48px 0 56px;
  background: var(--bg-card);
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.topic-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
}

.topic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.topic-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 6px;
}

.topic-icon.green {
  background: var(--primary-soft);
  color: var(--primary);
}

.topic-icon.orange {
  background: var(--accent-soft);
  color: var(--accent);
}

.topic-icon.blue {
  background: rgba(96, 165, 250, 0.12);
  color: #60A5FA;
}

.topic-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
  letter-spacing: -0.01em;
}

.topic-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.7;
}

/* 三步指南 */
.steps-guide-section {
  padding: 64px 0 56px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
  position: relative;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.step-number {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-number::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.step-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
  letter-spacing: -0.01em;
}

.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.7;
}

/* 相关文章 */
.article-summary-section {
  padding: 48px 0 56px;
  background: var(--bg-card);
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.article-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.article-card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-surface);
}

.article-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-card-img img {
  transform: scale(1.04);
}

.article-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.article-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.5;
  letter-spacing: -0.01em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  transition: color var(--transition-fast), gap var(--transition-fast);
  margin-top: 4px;
}

.article-link:hover {
  color: #d8ff7a;
  gap: 10px;
}

/* FAQ */
.faq-section {
  padding: 64px 0 56px;
}

.faq-wrapper {
  max-width: 800px;
  margin: 32px auto 0;
}

.accordion-custom {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion-item-custom {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.accordion-item-custom:hover {
  border-color: var(--border-light);
}

.accordion-item-custom.open {
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.accordion-header-custom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  cursor: pointer;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  transition: background var(--transition-fast);
}

.accordion-header-custom:hover {
  background: rgba(255, 255, 255, 0.02);
}

.accordion-header-custom .accordion-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  flex: 1;
}

.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.accordion-item-custom.open .accordion-icon {
  background: var(--primary);
  color: #0D1015;
  border-color: var(--primary);
  transform: rotate(45deg);
}

.accordion-body-custom {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  display: none;
}

.accordion-item-custom.open .accordion-body-custom {
  display: block;
}

/* CTA */
.cta-section {
  padding: 64px 0 72px;
  background-image: url('/assets/images/63d99eaca19da75e.webp');
  background-size: cover;
  background-position: center;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(13, 16, 21, 0.82);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.35;
}

.cta-content p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #0D1015;
  font-size: 15px;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary-custom:hover {
  background: #d8ff7a;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(198, 255, 74, 0.3);
  color: #0D1015;
}

.btn-secondary-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-secondary-custom:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-2px);
}

/* 订阅表单 */
.subscribe-section {
  padding: 48px 0 56px;
  background: var(--bg-card);
  border-top: 1px solid var(--border-default);
}

.subscribe-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.subscribe-info {
  flex: 1;
  min-width: 280px;
}

.subscribe-info h3 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-main);
  margin-bottom: 6px;
}

.subscribe-info p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

.subscribe-form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 280px;
}

.subscribe-input {
  flex: 1;
  min-width: 220px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  color: var(--text-main);
  font-size: 14px;
  padding: 12px 18px;
  border-radius: var(--radius-pill);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.subscribe-input::placeholder {
  color: var(--text-muted);
}

.subscribe-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

/* 页脚 */
.site-footer {
  background: #0A0C10;
  border-top: 1px solid var(--border-default);
  padding: 56px 0 32px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .navbar-brand-custom {
  font-size: 20px;
  margin-bottom: 14px;
  display: inline-flex;
}

.footer-brand-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 300px;
  margin: 0;
}

.footer-column-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: color var(--transition-fast);
}

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

.footer-contact {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border-default);
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.footer-legal-links a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
  color: var(--primary);
}

/* Section 通用 */
.section-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.35;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 0;
}

.section-header {
  margin-bottom: 24px;
}

.section-header.center {
  text-align: center;
}

.section-header.center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* 响应式 */
@media (max-width: 992px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .topic-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  :root {
    --section-space: 56px;
  }
  .page-header-section {
    padding: 32px 0 28px;
  }
  .page-header-content {
    flex-direction: column;
    gap: 16px;
  }
  .page-header-title h1 {
    font-size: 26px;
  }
  .page-header-meta {
    align-items: flex-start;
    width: 100%;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .stat-card {
    padding: 18px 16px;
  }
  .stat-card .stat-value {
    font-size: 22px;
  }
  .filter-toolbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .rank-item {
    flex-wrap: wrap;
    gap: 14px;
    padding: 16px 18px;
  }
  .rank-number {
    font-size: 28px;
    min-width: 42px;
  }
  .rank-number.rank-normal {
    font-size: 22px;
  }
  .rank-avatar {
    width: 56px;
    height: 56px;
  }
  .rank-data {
    flex-direction: row;
    align-items: center;
    gap: 16px;
    width: 100%;
    justify-content: flex-start;
  }
  .topic-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .article-grid {
    grid-template-columns: 1fr;
  }
  .cta-content h2 {
    font-size: 24px;
  }
  .subscribe-wrapper {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  .subscribe-form {
    justify-content: center;
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 576px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .stat-card .stat-value {
    font-size: 19px;
  }
  .stat-card .stat-label {
    font-size: 12px;
  }
  .filter-btn {
    font-size: 12px;
    padding: 5px 11px;
  }
  .rank-name {
    font-size: 16px;
  }
  .rank-desc {
    font-size: 13px;
    -webkit-line-clamp: 2;
  }
  .rank-data {
    gap: 10px;
  }
  .rank-heat {
    font-size: 13px;
  }
  .rank-fans {
    font-size: 12px;
  }
  .section-title {
    font-size: 22px;
  }
  .btn-primary-custom,
  .btn-secondary-custom {
    font-size: 14px;
    padding: 10px 22px;
  }
}

/* 动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* 语言切换胶囊响应式微调 */
@media (max-width: 992px) {
  .lang-switch {
    font-size: 12px;
    padding: 5px 11px;
  }
  .navbar-nav-custom {
    padding-bottom: 8px;
  }
}

/* roulang page: category4 */
:root {
            --bg-base: #0D1015;
            --bg-card: #161B22;
            --bg-surface: #1C232C;
            --primary: #C6FF4A;
            --primary-soft: rgba(198, 255, 74, 0.1);
            --accent: #FF5C3A;
            --accent-soft: rgba(255, 92, 58, 0.12);
            --text-main: #F5F7FA;
            --text-secondary: #AAB3C0;
            --text-muted: #6F7A86;
            --border-default: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.4);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'Roboto Mono', 'Space Mono', monospace;
            --section-space: 96px;
            --section-space-mobile: 56px;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.35s ease;
            --transition-slow: 0.6s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #d8ff7a;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 16, 21, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-default);
            transition: box-shadow var(--transition-medium);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .site-header .navbar {
            padding-top: 12px;
            padding-bottom: 12px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--text-main);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .navbar-brand-custom:hover {
            color: var(--primary);
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #0D1015;
            border-radius: 10px;
            font-weight: 800;
            font-size: 18px;
            flex-shrink: 0;
        }

        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link:focus {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }

        .navbar-nav-custom .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .navbar-nav-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .lang-switch:hover {
            border-color: var(--primary);
            color: var(--text-main);
            background: var(--primary-soft);
        }

        .lang-switch .divider {
            width: 1px;
            height: 14px;
            background: var(--border-light);
            flex-shrink: 0;
        }

        .navbar-toggler-custom {
            border: none;
            background: transparent;
            color: var(--text-main);
            font-size: 24px;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler-custom:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 991px) {
            .navbar-nav-custom {
                padding-top: 12px;
                gap: 4px;
            }
            .navbar-nav-custom .nav-link {
                padding: 12px 16px;
                font-size: 16px;
            }
            .navbar-nav-custom .nav-link.active::after {
                display: none;
            }
            .navbar-collapse {
                background: rgba(13, 16, 21, 0.98);
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 8px;
                border: 1px solid var(--border-default);
            }
        }

        /* 通用 section */
        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-tight {
            padding: 64px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-space-mobile) 0;
            }
            .section-tight {
                padding: 40px 0;
            }
            .section-title {
                font-size: 26px;
            }
        }

        /* 分类头 */
        .category-head {
            padding: 48px 0 40px;
            background-image: url('/assets/images/690dc35b1e145f86.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid var(--border-default);
            overflow: hidden;
        }

        .category-head::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 16, 21, 0.88);
            z-index: 1;
        }

        .category-head::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle at 20% 50%, rgba(198, 255, 74, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 80% 30%, rgba(255, 92, 58, 0.05) 0%, transparent 40%);
            z-index: 2;
            pointer-events: none;
        }

        .category-head .container {
            position: relative;
            z-index: 3;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-custom a:hover {
            color: var(--primary);
        }

        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 12px;
        }

        .breadcrumb-current {
            color: var(--primary);
            font-weight: 500;
        }

        .category-head-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .category-head h1 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.25;
        }

        .category-head .result-count {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-default);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        .result-count .live-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        .category-head .head-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-top: 8px;
        }

        @keyframes pulse-dot {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        @media (max-width: 768px) {
            .category-head h1 {
                font-size: 28px;
            }
            .category-head {
                padding: 36px 0 32px;
            }
        }

        /* 数据看板 */
        .data-board-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .data-board-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition-medium);
            position: relative;
            overflow: hidden;
        }

        .data-board-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .data-board-card:hover::before {
            opacity: 1;
        }

        .data-board-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .data-board-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 16px;
            background: var(--primary-soft);
            color: var(--primary);
        }

        .data-board-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            font-weight: 500;
        }

        .data-board-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .data-board-trend {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
        }

        .data-board-trend.down {
            color: var(--accent);
        }

        @media (max-width: 992px) {
            .data-board-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .data-board-grid {
                grid-template-columns: 1fr;
            }
            .data-board-value {
                font-size: 28px;
            }
        }

        /* 筛选工具栏 */
        .filter-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-default);
            margin-bottom: 32px;
        }

        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-default);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .filter-tag.active {
            background: var(--primary);
            color: #0D1015;
            border-color: var(--primary);
            font-weight: 600;
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .filter-sort label {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .sort-select {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            color: var(--text-main);
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color var(--transition-fast);
            min-width: 140px;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23AAB3C0' d='M6 8.5L1.5 4h9z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }

        .sort-select:focus {
            border-color: var(--primary);
            outline: none;
        }

        @media (max-width: 768px) {
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-sort {
                justify-content: space-between;
            }
            .sort-select {
                flex: 1;
            }
        }

        /* 洞察列表 */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .insight-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-medium);
            position: relative;
        }

        .insight-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .insight-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform var(--transition-medium);
            background: var(--bg-surface);
        }

        .insight-card:hover .insight-card-img {
            transform: scale(1.02);
        }

        .insight-card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .insight-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .badge-type {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.02em;
        }

        .badge-type.data-report {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .badge-type.trend {
            background: var(--accent-soft);
            color: var(--accent);
        }

        .badge-type.rank {
            background: rgba(100, 180, 255, 0.12);
            color: #7FC0FF;
        }

        .insight-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
        }

        .insight-card-title {
            font-size: 19px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .insight-card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .insight-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 16px;
            border-top: 1px solid var(--border-default);
        }

        .insight-card-stat {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        .insight-card-stat span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: transparent;
            border: none;
            padding: 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-text i {
            font-size: 12px;
            transition: transform var(--transition-fast);
        }

        .btn-text:hover {
            color: #d8ff7a;
        }

        .btn-text:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 768px) {
            .insight-grid {
                grid-template-columns: 1fr;
            }
            .insight-card-img {
                height: 180px;
            }
        }

        /* 查看更多 */
        .load-more-wrap {
            text-align: center;
            margin-top: 32px;
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: 1px solid var(--border-light);
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-outline-light-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
            box-shadow: 0 4px 16px rgba(198, 255, 74, 0.08);
        }

        /* 趋势信号 */
        .trend-signal-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .trend-signal-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-medium);
            position: relative;
            overflow: hidden;
        }

        .trend-signal-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .trend-signal-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }

        .trend-signal-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .trend-signal-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .trend-signal-value {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        @media (max-width: 992px) {
            .trend-signal-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 三步指南 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            counter-reset: step-counter;
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
            transition: all var(--transition-medium);
        }

        .step-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            font-family: var(--font-mono);
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            opacity: 0.2;
            line-height: 1;
            margin-bottom: 16px;
            letter-spacing: -0.04em;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 数据快报 */
        .brief-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .brief-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all var(--transition-medium);
        }

        .brief-item:hover {
            border-color: var(--border-light);
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }

        .brief-img {
            width: 80px;
            height: 60px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            background: var(--bg-surface);
        }

        .brief-content {
            flex: 1;
            min-width: 0;
        }

        .brief-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .brief-content p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .brief-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        @media (max-width: 576px) {
            .brief-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .brief-img {
                width: 100%;
                height: 120px;
            }
        }

        /* FAQ */
        .faq-accordion .accordion-item {
            background: transparent;
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-main);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            border: none;
            box-shadow: none;
            transition: all var(--transition-fast);
            border-radius: var(--radius-md);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-surface);
            color: var(--primary);
            box-shadow: none;
        }

        .faq-accordion .accordion-button::after {
            content: '\f067';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background-image: none;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: '\f068';
            color: var(--primary);
            transform: rotate(0deg);
        }

        .faq-accordion .accordion-button:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 2px var(--primary-soft);
        }

        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            padding: 0 24px 20px;
        }

        /* CTA */
        .cta-section-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
        }

        .cta-section-custom::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(198, 255, 74, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section-custom h2 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .cta-section-custom p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 700;
            color: #0D1015;
            background: var(--primary);
            border: none;
            padding: 13px 28px;
            border-radius: var(--radius-pill);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-primary-custom:hover {
            background: #d8ff7a;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(198, 255, 74, 0.25);
            color: #0D1015;
        }

        .btn-primary-custom .live-dot-btn {
            width: 8px;
            height: 8px;
            background: #0D1015;
            border-radius: 50%;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        @media (max-width: 576px) {
            .cta-section-custom {
                padding: 40px 24px;
            }
            .cta-section-custom h2 {
                font-size: 22px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: #080A0D;
            border-top: 1px solid var(--border-default);
            padding: 64px 0 32px;
            margin-top: 64px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .navbar-brand-custom {
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-brand-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 320px;
        }

        .footer-column-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-contact {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-default);
            flex-wrap: wrap;
        }

        .footer-copyright {
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }

        .footer-legal-links a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-legal-links a:hover {
            color: var(--primary);
        }

        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer {
                padding: 48px 0 24px;
                margin-top: 40px;
            }
        }

        /* 动效 */
        .fade-in-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity var(--transition-medium), transform var(--transition-medium);
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 数字递增 */
        .count-up {
            font-family: var(--font-mono);
            font-weight: 700;
        }

        /* 通用主题变化 */
        .bg-surface-block {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
        }

        @media (max-width: 576px) {
            .bg-surface-block {
                padding: 32px 20px;
            }
        }

        /* 辅助间距 */
        .mb-32 {
            margin-bottom: 32px;
        }
        .mb-40 {
            margin-bottom: 40px;
        }
        .mt-32 {
            margin-top: 32px;
        }

/* roulang page: category5 */
:root {
            --bg-base: #0D1015;
            --bg-card: #161B22;
            --bg-surface: #1C232C;
            --primary: #C6FF4A;
            --primary-soft: rgba(198, 255, 74, 0.1);
            --accent: #FF5C3A;
            --accent-soft: rgba(255, 92, 58, 0.12);
            --text-main: #F5F7FA;
            --text-secondary: #AAB3C0;
            --text-muted: #6F7A86;
            --border-default: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.4);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'Roboto Mono', 'Space Mono', monospace;
            --section-space: 80px;
            --section-space-mobile: 56px;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.35s ease;
            --transition-slow: 0.6s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #d8ff7a;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 16, 21, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-default);
            transition: box-shadow var(--transition-medium);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .site-header .navbar {
            padding-top: 12px;
            padding-bottom: 12px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--text-main);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .navbar-brand-custom:hover {
            color: var(--primary);
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #0D1015;
            border-radius: 10px;
            font-weight: 800;
            font-size: 18px;
            flex-shrink: 0;
        }

        .navbar-nav-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav-custom .nav-link:hover,
        .navbar-nav-custom .nav-link:focus {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }

        .navbar-nav-custom .nav-link.active {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .navbar-nav-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            padding: 7px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .lang-switch:hover {
            border-color: var(--primary);
            color: var(--text-main);
            background: rgba(198, 255, 74, 0.05);
        }

        .lang-switch .divider {
            width: 1px;
            height: 14px;
            background: var(--border-light);
        }

        .navbar-toggler-custom {
            border: none;
            background: transparent;
            color: var(--text-main);
            font-size: 24px;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler-custom:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 991.98px) {
            .navbar-nav-custom {
                padding-top: 12px;
                gap: 4px;
            }
            .navbar-nav-custom .nav-link {
                padding: 12px 16px;
                font-size: 16px;
            }
            .lang-switch {
                margin-top: 8px;
            }
        }

        /* 分类头 */
        .category-header {
            position: relative;
            padding: 48px 0 40px;
            background: var(--bg-base);
            border-bottom: 1px solid var(--border-default);
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/4057c26293517a85.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
            z-index: 1;
        }

        .category-header::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(13, 16, 21, 0.65) 0%, rgba(13, 16, 21, 0.85) 100%);
            pointer-events: none;
            z-index: 1;
        }

        .category-header .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-custom a:hover {
            color: var(--primary);
        }

        .breadcrumb-custom i {
            font-size: 10px;
            color: var(--text-muted);
        }

        .category-header h1 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .category-header .result-count {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
        }

        .category-header .result-count i {
            color: var(--primary);
            font-size: 12px;
        }

        @media (max-width: 767.98px) {
            .category-header {
                padding: 36px 0 32px;
            }
            .category-header h1 {
                font-size: 28px;
            }
        }

        /* 筛选排序工具栏 */
        .toolbar-bar {
            padding: 20px 0;
            background: var(--bg-base);
            border-bottom: 1px solid var(--border-default);
            position: relative;
            z-index: 5;
        }

        .toolbar-bar .wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            color: var(--text-secondary);
            padding: 7px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--border-light);
            color: var(--text-main);
            background: var(--bg-surface);
        }

        .filter-chip.active {
            border-color: var(--primary);
            background: var(--primary-soft);
            color: var(--primary);
        }

        .sort-select {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            color: var(--text-secondary);
            padding: 7px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            cursor: pointer;
            transition: all var(--transition-fast);
            min-width: 120px;
        }

        .sort-select:hover,
        .sort-select:focus {
            border-color: var(--primary);
            color: var(--text-main);
            outline: none;
            box-shadow: 0 0 0 2px var(--primary-soft);
        }

        /* 列表主体 */
        .academy-list-section {
            padding: var(--section-space) 0;
            background: var(--bg-base);
        }

        .academy-list-section .section-label {
            font-family: var(--font-mono);
            font-size: 13px;
            letter-spacing: 0.06em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .academy-list-section .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 32px;
        }

        .academy-card {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-medium);
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }

        .academy-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .academy-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-surface);
        }

        .academy-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-medium);
        }

        .academy-card:hover .card-cover img {
            transform: scale(1.03);
        }

        .academy-card .card-cover .badge-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(13, 16, 21, 0.82);
            border: 1px solid var(--border-light);
            color: var(--text-main);
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .badge-tag.live {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-soft);
        }

        .badge-tag.hot {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .academy-card .card-body {
            padding: 20px 20px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .academy-card .card-title {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .academy-card .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .academy-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
            padding-top: 12px;
            border-top: 1px solid var(--border-default);
        }

        .academy-card .card-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .academy-card .card-meta i {
            font-size: 12px;
            color: var(--text-muted);
        }

        .show-more-wrapper {
            text-align: center;
            margin-top: 40px;
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-main);
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            background: var(--primary-soft);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* 数据看板 */
        .academy-stats {
            padding: var(--section-space) 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
        }

        .academy-stats .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-block {
            text-align: center;
            padding: 24px 16px;
            background: var(--bg-base);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .stat-block:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        @media (max-width: 991.98px) {
            .academy-stats .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .stat-number {
                font-size: 26px;
            }
        }

        /* 三步成长路径 */
        .growth-path {
            padding: var(--section-space) 0;
            background: var(--bg-base);
        }

        .growth-path .section-label {
            font-family: var(--font-mono);
            font-size: 13px;
            letter-spacing: 0.06em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .growth-path .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 40px;
        }

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

        .path-step {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-medium);
            position: relative;
        }

        .path-step:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .path-step .step-number {
            font-family: var(--font-mono);
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 12px;
        }

        .path-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .path-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 991.98px) {
            .path-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* 子主题场景 */
        .sub-topics {
            padding: var(--section-space) 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-default);
            border-bottom: 1px solid var(--border-default);
        }

        .sub-topics .section-label {
            font-family: var(--font-mono);
            font-size: 13px;
            letter-spacing: 0.06em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .sub-topics .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 32px;
        }

        .topic-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .topic-tag-card {
            flex: 1;
            min-width: 180px;
            background: var(--bg-base);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: all var(--transition-medium);
        }

        .topic-tag-card:hover {
            border-color: var(--primary);
            background: var(--primary-soft);
            transform: translateY(-3px);
        }

        .topic-tag-card i {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .topic-tag-card .topic-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }

        @media (max-width: 767.98px) {
            .topic-tag-card {
                min-width: calc(50% - 10px);
            }
        }

        @media (max-width: 575.98px) {
            .topic-tag-card {
                min-width: 100%;
            }
        }

        /* FAQ */
        .faq-section {
            padding: var(--section-space) 0;
            background: var(--bg-base);
        }

        .faq-section .section-label {
            font-family: var(--font-mono);
            font-size: 13px;
            letter-spacing: 0.06em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .faq-section .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 32px;
        }

        .accordion-custom .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .accordion-custom .accordion-item:hover {
            border-color: var(--border-light);
        }

        .accordion-custom .accordion-button {
            background: var(--bg-card);
            color: var(--text-main);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--bg-surface);
            color: var(--primary);
            box-shadow: none;
            border-bottom: 1px solid var(--border-default);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }

        .accordion-custom .accordion-button::after {
            content: '+';
            background: none;
            font-size: 22px;
            font-weight: 400;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            line-height: 1;
        }

        .accordion-custom .accordion-button:not(.collapsed)::after {
            content: '-';
            color: var(--primary);
        }

        .accordion-custom .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            padding: 16px 20px 20px;
        }

        /* 订阅CTA */
        .subscribe-cta {
            padding: 64px 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-default);
        }

        .subscribe-cta .cta-box {
            background: var(--bg-base);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            transition: all var(--transition-medium);
        }

        .subscribe-cta .cta-box:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }

        .subscribe-cta h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }

        .subscribe-cta p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 460px;
            margin: 0 auto;
        }

        .subscribe-form input {
            flex: 1;
            background: var(--bg-card);
            border: 1px solid var(--border-default);
            color: var(--text-main);
            padding: 12px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            transition: all var(--transition-fast);
            min-width: 0;
        }

        .subscribe-form input::placeholder {
            color: var(--text-muted);
        }

        .subscribe-form input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 2px var(--primary-soft);
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            border: none;
            color: #0D1015;
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background: #d8ff7a;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(198, 255, 74, 0.25);
            color: #0D1015;
        }

        @media (max-width: 575.98px) {
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-cta .cta-box {
                padding: 28px 20px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-base);
            border-top: 1px solid var(--border-default);
            padding: 48px 0 28px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-top: 12px;
            margin-bottom: 0;
            max-width: 320px;
        }

        .footer-column-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: color var(--transition-fast);
        }

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

        .footer-contact {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 14px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-default);
            flex-wrap: wrap;
        }

        .footer-copyright {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
        }

        .footer-legal-links a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-legal-links a:hover {
            color: var(--primary);
        }

        @media (max-width: 991.98px) {
            .footer-content {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 575.98px) {
            .footer-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

        /* 滚动渐入 */
        .fade-in-on-scroll {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }

        .fade-in-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}