/* roulang page: index */
:root {
            --bg: #0B0D12;
            --surface: #131722;
            --surface-2: #171B29;
            --primary: #19E3C2;
            --secondary: #F43F7E;
            --gold: #FFB020;
            --text: #F2F5F9;
            --text-muted: #A2A9B8;
            --text-soft: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(25, 227, 194, 0.6);
            --radius-card: 22px;
            --radius-btn: 999px;
            --radius-input: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 24px 60px rgba(0, 0, 0, 0.5);
            --gradient-brand: linear-gradient(135deg, var(--primary), var(--secondary));
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-display: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 52px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 内缩圆角浮动导航 */
        .float-nav-header {
            position: sticky;
            top: 12px;
            z-index: 60;
            margin: 12px 16px 0;
            padding: 0;
        }

        .float-nav {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .float-nav.scrolled {
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(25, 227, 194, 0.25);
        }

        .nav-logo-text {
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.01em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }

        .nav-link {
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 999px;
            transition: all .2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
        }

        .nav-link.active {
            color: #041014;
            background: var(--gradient-brand);
            font-weight: 700;
        }

        .mobile-menu-panel {
            background: rgba(13, 15, 22, 0.95);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: var(--shadow-card);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 72vh;
            display: flex;
            align-items: center;
            padding: 72px 0 64px;
            background-image: url('/assets/images/400baebbfdf6e0d3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.16), rgba(244, 63, 126, 0.14)), linear-gradient(180deg, rgba(11, 13, 18, 0.82) 0%, rgba(11, 13, 18, 0.55) 55%, rgba(11, 13, 18, 0.92) 100%);
            z-index: -1;
        }

        .hero-title {
            font-size: clamp(34px, 6vw, 62px);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
        }

        .hero-desc {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 30px;
            line-height: 1.85;
        }

        .hero-check-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 14px;
        }

        .hero-check-icon {
            width: 20px;
            height: 20px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.15);
            border: 1px solid rgba(25, 227, 194, 0.6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            flex-shrink: 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #041014;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 10px 28px rgba(25, 227, 194, 0.22);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            filter: brightness(1.08);
            box-shadow: 0 16px 36px rgba(25, 227, 194, 0.28);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            transition: all .25s ease;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: rgba(25, 227, 194, 0.08);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* 板块 */
        .section-block {
            padding: var(--section-pad) 0;
        }

        .section-block.alt-surface {
            background: var(--surface);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            background: rgba(25, 227, 194, 0.08);
            border: 1px solid rgba(25, 227, 194, 0.25);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(24px, 4vw, 32px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--text);
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 28px;
        }

        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px;
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }

        .card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
        }

        .card-gradient-line {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-brand);
            opacity: 0;
            transition: opacity .3s ease;
        }

        .card:hover .card-gradient-line {
            opacity: 1;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        .badge-gold {
            background: rgba(255, 176, 32, 0.12);
            border: 1px solid rgba(255, 176, 32, 0.45);
            color: var(--gold);
        }

        .badge-cyan {
            background: rgba(25, 227, 194, 0.1);
            border: 1px solid rgba(25, 227, 194, 0.4);
            color: var(--primary);
        }

        .badge-pink {
            background: rgba(244, 63, 126, 0.1);
            border: 1px solid rgba(244, 63, 126, 0.4);
            color: var(--secondary);
        }

        .stat-number {
            font-family: var(--font-display);
            font-weight: 800;
            letter-spacing: 0.02em;
        }

        .stat-number.cyan {
            color: var(--primary);
        }
        .stat-number.gold {
            color: var(--gold);
        }
        .stat-number.pink {
            color: var(--secondary);
        }

        .countdown-box {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 18px;
        }

        .countdown-unit {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 62px;
        }

        .countdown-digit {
            font-family: var(--font-display);
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }

        .countdown-label {
            font-size: 11px;
            color: var(--text-soft);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 18px 22px;
            margin-bottom: 12px;
            transition: all .3s ease;
        }

        .faq-item:hover {
            border-color: var(--border-hover);
        }

        .faq-question {
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.1);
            border: 1px solid rgba(25, 227, 194, 0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            transition: transform .25s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            padding-left: 16px;
            border-left: 3px solid var(--primary);
            margin-top: 0;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            margin-top: 12px;
            padding-top: 4px;
        }

        /* 底部固定转化条 */
        .floating-cta-bar {
            position: fixed;
            bottom: 14px;
            left: 16px;
            right: 16px;
            z-index: 70;
            pointer-events: none;
        }

        .floating-cta-inner {
            max-width: 1100px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(25, 227, 194, 0.28);
            border-radius: 20px;
            box-shadow: 0 18px 50px rgba(0, 0, 0, 0.6);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            pointer-events: auto;
            flex-wrap: wrap;
        }

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

        .floating-cta-text strong {
            color: var(--text);
            font-weight: 700;
        }

        .footer-section {
            background: #080A0F;
            border-top: 1px solid var(--border);
            padding: 56px 0 120px;
        }

        .footer-link {
            font-size: 14px;
            color: var(--text-muted);
            transition: color .2s ease;
        }
        .footer-link:hover {
            color: var(--primary);
        }

        .footer-brand {
            font-weight: 800;
            font-size: 18px;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .footer-copyright {
            font-size: 12px;
            color: var(--text-soft);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .section-block {
                padding: 72px 0;
            }
            .hero-section {
                min-height: 60vh;
                padding: 52px 0;
            }
        }

        @media (max-width: 768px) {
            .float-nav-header {
                margin: 8px 10px 0;
            }
            .section-block {
                padding: var(--section-pad-mobile) 0;
            }
            .hero-section {
                min-height: 62vh;
                padding: 48px 0;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
                line-height: 1.7;
            }
            .card {
                padding: 20px;
            }
            .floating-cta-bar {
                left: 8px;
                right: 8px;
                bottom: 8px;
            }
            .floating-cta-inner {
                padding: 12px 16px;
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                border-radius: 16px;
            }
            .floating-cta-text {
                font-size: 13px;
            }
            .countdown-box {
                padding: 14px 12px;
                justify-content: center;
            }
            .countdown-digit {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-section {
                padding: 40px 0;
                min-height: 58vh;
            }
            .hero-title {
                font-size: 27px;
                line-height: 1.15;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 22px;
            }
            .section-desc {
                font-size: 14px;
            }
            .nav-logo-text {
                font-size: 17px;
            }
        }

/* roulang page: category2 */
:root {
            --bg: #0B0D12;
            --surface: #131722;
            --surface-2: #171B29;
            --primary: #19E3C2;
            --secondary: #F43F7E;
            --gold: #FFB020;
            --text: #F2F5F9;
            --text-muted: #A2A9B8;
            --text-soft: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(25, 227, 194, 0.6);
            --radius-card: 22px;
            --radius-btn: 999px;
            --radius-input: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 24px 60px rgba(0, 0, 0, 0.5);
            --gradient-brand: linear-gradient(135deg, var(--primary), var(--secondary));
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-display: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
            --section-pad: 80px;
            --section-pad-mobile: 48px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 100px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 6px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 内缩圆角浮动导航 */
        .float-nav-header {
            position: sticky;
            top: 12px;
            z-index: 60;
            margin: 12px 16px 0;
            padding: 0;
        }
        .float-nav {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
            transition: box-shadow .3s ease, border-color .3s ease;
        }
        .float-nav.scrolled {
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(25, 227, 194, 0.25);
        }
        .nav-logo-text {
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.01em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }
        .nav-link {
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 999px;
            transition: all .2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
        }
        .nav-link.active {
            color: #041014;
            background: var(--gradient-brand);
            font-weight: 700;
        }
        .mobile-menu-panel {
            background: rgba(13, 15, 22, 0.95);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: var(--shadow-card);
        }
        /* 分类页头 */
        .category-header {
            position: relative;
            min-height: 160px;
            display: flex;
            align-items: center;
            padding: 42px 0 38px;
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.10), rgba(244, 63, 126, 0.08)), linear-gradient(180deg, rgba(11, 13, 18, 0.6) 0%, rgba(11, 13, 18, 0.85) 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .category-header::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/a3383a3a2cef8bd2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: -1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-soft);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--text-soft);
            font-size: 12px;
        }
        .category-h1 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .category-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 760px;
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .count-badge-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .count-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
        }
        .count-badge .num {
            font-family: var(--font-display);
            color: var(--gold);
            font-weight: 700;
            font-size: 14px;
        }
        /* 板块通用 */
        .section {
            padding: var(--section-pad) 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile) 0;
            }
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.1);
            color: var(--primary);
            border: 1px solid rgba(25, 227, 194, 0.3);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 30px;
        }
        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #041014;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: none;
            cursor: pointer;
            gap: 8px;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(25, 227, 194, 0.25);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-size: 15px;
            transition: all .25s ease;
            border: 1px solid var(--primary);
            cursor: pointer;
            gap: 8px;
        }
        .btn-secondary:hover {
            background: rgba(25, 227, 194, 0.08);
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(25, 227, 194, 0.12);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        /* 卡片 */
        .g-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            overflow: hidden;
            position: relative;
        }
        .g-card::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-brand);
            opacity: 0;
            transition: opacity .3s ease;
        }
        .g-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
        }
        .g-card:hover::after {
            opacity: 1;
        }
        .g-card-pad {
            padding: 22px 24px;
        }
        /* 标签 */
        .g-tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(255, 176, 32, 0.1);
            color: var(--gold);
            border: 1px solid rgba(255, 176, 32, 0.25);
            white-space: nowrap;
        }
        .g-tag.cyan {
            background: rgba(25, 227, 194, 0.1);
            color: var(--primary);
            border-color: rgba(25, 227, 194, 0.25);
        }
        .g-tag.pink {
            background: rgba(244, 63, 126, 0.1);
            color: var(--secondary);
            border-color: rgba(244, 63, 126, 0.25);
        }
        .g-tag.soft {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            border-color: var(--border);
        }
        .data-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            border-radius: 999px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 700;
            font-family: var(--font-display);
            color: var(--gold);
            background: rgba(255, 176, 32, 0.09);
            border: 1px solid rgba(255, 176, 32, 0.22);
            white-space: nowrap;
        }
        /* 筛选工具条 */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 14px 16px;
            margin-bottom: 26px;
        }
        .filter-pill {
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all .2s ease;
            white-space: nowrap;
        }
        .filter-pill:hover {
            color: var(--primary);
            border-color: rgba(25, 227, 194, 0.4);
            background: rgba(25, 227, 194, 0.06);
        }
        .filter-pill.active {
            color: #041014;
            background: var(--gradient-brand);
            border-color: transparent;
            font-weight: 700;
        }
        /* FAQ */
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all .25s ease;
        }
        .faq-item:hover {
            border-color: rgba(25, 227, 194, 0.3);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            background: transparent;
            border: none;
            cursor: pointer;
            gap: 16px;
            text-align: left;
            transition: color .2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.1);
            border: 1px solid rgba(25, 227, 194, 0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            transition: transform .3s ease;
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 22px;
            border-left: 3px solid transparent;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 4px 22px 20px 22px;
            border-left-color: var(--primary);
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        /* 页脚 */
        .footer-section {
            background: #08090D;
            border-top: 1px solid var(--border);
            padding: 50px 0 30px;
            margin-top: 40px;
        }
        .footer-brand {
            font-weight: 800;
            font-size: 18px;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .footer-link {
            font-size: 14px;
            color: var(--text-soft);
            transition: color .2s ease;
        }
        .footer-link:hover {
            color: var(--primary);
        }
        .footer-copyright {
            font-size: 13px;
            color: var(--text-soft);
        }
        /* 底部固定转化条 */
        .fixed-cta-bar {
            position: fixed;
            bottom: 16px;
            left: 16px;
            right: 16px;
            z-index: 50;
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.9);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 12px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
        }
        .fixed-cta-text {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .fixed-cta-text .highlight {
            color: var(--primary);
            font-weight: 700;
        }
        @media (max-width: 640px) {
            .fixed-cta-bar {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: 10px 14px;
                gap: 8px;
            }
            .fixed-cta-text {
                justify-content: center;
            }
            .fixed-cta-bar .btn-primary,
            .fixed-cta-bar .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }
        /* 顺序列表 */
        .rank-list-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 10px;
            transition: all .25s ease;
        }
        .rank-list-item:hover {
            border-color: rgba(25, 227, 194, 0.3);
            transform: translateX(4px);
        }
        .rank-num {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 20px;
            color: var(--gold);
            width: 40px;
            flex-shrink: 0;
            text-align: center;
        }
        .rank-num.top1 {
            color: var(--secondary);
        }
        .rank-num.top2 {
            color: var(--primary);
        }
        .rank-num.top3 {
            color: var(--gold);
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .grid-4 {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0B0D12;
            --surface: #131722;
            --surface-2: #171B29;
            --primary: #19E3C2;
            --secondary: #F43F7E;
            --gold: #FFB020;
            --text: #F2F5F9;
            --text-muted: #A2A9B8;
            --text-soft: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(25, 227, 194, 0.6);
            --radius-card: 22px;
            --radius-btn: 999px;
            --radius-input: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 24px 60px rgba(0, 0, 0, 0.5);
            --gradient-brand: linear-gradient(135deg, var(--primary), var(--secondary));
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-display: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 52px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 110px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 6px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 内缩圆角浮动导航 */
        .float-nav-header {
            position: sticky;
            top: 12px;
            z-index: 60;
            margin: 12px 16px 0;
            padding: 0;
        }
        .float-nav {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
            transition: box-shadow .3s ease, border-color .3s ease;
        }
        .float-nav.scrolled {
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(25, 227, 194, 0.25);
        }
        .nav-logo-text {
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.01em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }
        .nav-link {
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 999px;
            transition: all .2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
        }
        .nav-link.active {
            color: #041014;
            background: var(--gradient-brand);
            font-weight: 700;
        }
        .mobile-menu-panel {
            background: rgba(13, 15, 22, 0.95);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: var(--shadow-card);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 72vh;
            display: flex;
            align-items: center;
            padding: 72px 0 64px;
            background-image: url('/assets/images/400baebbfdf6e0d3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
        }
        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.16), rgba(244, 63, 126, 0.14)), linear-gradient(180deg, rgba(11, 13, 18, 0.82) 0%, rgba(11, 13, 18, 0.55) 55%, rgba(11, 13, 18, 0.92) 100%);
            z-index: -1;
        }
        .hero-title {
            font-size: clamp(34px, 6vw, 62px);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
        }
        .hero-desc {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 30px;
            line-height: 1.85;
        }
        .hero-check-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 14px;
        }
        .hero-check-icon {
            width: 20px;
            height: 20px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.15);
            border: 1px solid rgba(25, 227, 194, 0.6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            flex-shrink: 0;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #041014;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 10px 24px rgba(25, 227, 194, 0.18);
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 16px 34px rgba(25, 227, 194, 0.28);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: 1px solid var(--primary);
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(25, 227, 194, 0.08);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-sm {
            padding: 9px 18px;
            font-size: 14px;
        }

        /* 卡片 */
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }
        .card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 20px;
            right: 20px;
            height: 1px;
            background: var(--gradient-brand);
            opacity: 0.6;
            border-radius: 999px;
        }
        .card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
        }
        .card-cover {
            border-radius: 14px;
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16/9;
            background: var(--surface-2);
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .card:hover .card-cover img {
            transform: scale(1.05);
        }

        /* 徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: 999px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }
        .badge-gold {
            color: #1A1206;
            background: linear-gradient(135deg, rgba(255, 176, 32, 0.85), rgba(255, 176, 32, 0.6));
            border: 1px solid rgba(255, 176, 32, 0.5);
        }
        .badge-cyan {
            color: #041014;
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.85), rgba(25, 227, 194, 0.55));
            border: 1px solid rgba(25, 227, 194, 0.5);
        }
        .badge-pink {
            color: #1A0410;
            background: linear-gradient(135deg, rgba(244, 63, 126, 0.8), rgba(244, 63, 126, 0.5));
            border: 1px solid rgba(244, 63, 126, 0.5);
        }
        .badge-outline {
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
        }
        .num-display {
            font-family: var(--font-display);
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        /* 正文段落 */
        .section-pad {
            padding: var(--section-pad) 0;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: var(--section-pad-mobile) 0;
            }
        }
        .section-label {
            font-size: 13px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(26px, 4vw, 32px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text);
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 32px;
        }

        /* FAQ */
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all .3s ease;
        }
        .faq-item.open {
            border-color: rgba(25, 227, 194, 0.4);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 22px;
            cursor: pointer;
            font-weight: 700;
            color: var(--text);
            font-size: 16px;
            transition: color .2s ease;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.1);
            border: 1px solid rgba(25, 227, 194, 0.5);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            transition: transform .3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 22px 20px 22px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.85;
            border-left: 3px solid var(--primary);
            margin-left: 22px;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* 底部固定转化条 */
        .bottom-cta-wrapper {
            position: fixed;
            bottom: 12px;
            left: 0;
            right: 0;
            z-index: 70;
            padding: 0 16px;
            pointer-events: none;
        }
        .bottom-cta-bar {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            padding: 12px 18px;
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            pointer-events: auto;
        }
        .bottom-cta-text {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .bottom-cta-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        @media (max-width: 640px) {
            .bottom-cta-bar {
                flex-direction: row;
                padding: 10px 12px;
                gap: 8px;
            }
            .bottom-cta-text {
                font-size: 12px;
                flex: 1;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .bottom-cta-actions {
                gap: 6px;
            }
            .btn-sm {
                padding: 7px 12px;
                font-size: 12px;
                white-space: nowrap;
            }
        }

        /* 页脚 */
        .footer-section {
            background: #07090D;
            border-top: 1px solid var(--border);
            padding: 60px 0 40px;
            margin-top: 40px;
        }
        .footer-brand {
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }
        .footer-link {
            font-size: 14px;
            color: var(--text-muted);
            transition: color .2s ease;
        }
        .footer-link:hover {
            color: var(--primary);
        }
        .footer-copyright {
            font-size: 13px;
            color: var(--text-soft);
        }

        /* 面板通用 */
        .section-alt-bg {
            background: rgba(255, 255, 255, 0.015);
        }

        /* 横向滚动数据条 */
        .stat-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 16px;
            scrollbar-width: thin;
            scrollbar-color: rgba(25, 227, 194, 0.4) rgba(255, 255, 255, 0.04);
        }
        .stat-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .stat-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.04);
            border-radius: 999px;
        }
        .stat-scroll::-webkit-scrollbar-thumb {
            background: rgba(25, 227, 194, 0.4);
            border-radius: 999px;
        }
        .stat-card {
            flex: 0 0 auto;
            min-width: 180px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 18px 20px;
            text-align: left;
            transition: border-color .3s ease, transform .3s ease;
        }
        .stat-card:hover {
            border-color: rgba(25, 227, 194, 0.5);
            transform: translateY(-4px);
        }
        .stat-number {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.2;
        }
        .stat-number.cyan {
            color: var(--primary);
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* 对比卡 */
        .compare-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px;
            position: relative;
            transition: border-color .3s ease;
        }
        .compare-card:hover {
            border-color: rgba(25, 227, 194, 0.45);
        }
        .compare-card.highlight {
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.06), rgba(244, 63, 126, 0.05)), var(--surface);
        }
        .compare-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .compare-card li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .compare-card li::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 999px;
            background: var(--primary);
            flex-shrink: 0;
            margin-top: 10px;
        }
        .compare-card li:last-child {
            border-bottom: none;
        }

        /* 其他 */
        .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            color: var(--text-muted);
            transition: all .2s ease;
            cursor: pointer;
        }
        .tag-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(25, 227, 194, 0.06);
        }
        .tag-chip.active {
            background: rgba(25, 227, 194, 0.12);
            border-color: rgba(25, 227, 194, 0.6);
            color: var(--primary);
        }

/* roulang page: category3 */
:root {
            --bg: #0B0D12;
            --surface: #131722;
            --surface-2: #171B29;
            --primary: #19E3C2;
            --secondary: #F43F7E;
            --gold: #FFB020;
            --text: #F2F5F9;
            --text-muted: #A2A9B8;
            --text-soft: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(25, 227, 194, 0.6);
            --radius-card: 22px;
            --radius-btn: 999px;
            --radius-input: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 24px 60px rgba(0, 0, 0, 0.5);
            --gradient-brand: linear-gradient(135deg, var(--primary), var(--secondary));
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-display: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 52px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 120px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 内缩圆角浮动导航 */
        .float-nav-header {
            position: sticky;
            top: 12px;
            z-index: 60;
            margin: 12px 16px 0;
            padding: 0;
        }

        .float-nav {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .float-nav.scrolled {
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(25, 227, 194, 0.25);
        }

        .nav-logo-text {
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.01em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }

        .nav-link {
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 999px;
            transition: all .2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
        }

        .nav-link.active {
            color: #041014;
            background: var(--gradient-brand);
            font-weight: 700;
        }

        .mobile-menu-panel {
            background: rgba(13, 15, 22, 0.95);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: var(--shadow-card);
        }

        /* 分类页页眉 */
        .page-header {
            position: relative;
            padding: 48px 0 36px;
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.08), rgba(244, 63, 126, 0.06)), linear-gradient(180deg, #0E1117 0%, #131722 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .page-header::after {
            content: "";
            position: absolute;
            top: -80px;
            right: 10%;
            width: 260px;
            height: 260px;
            background: rgba(25, 227, 194, 0.08);
            filter: blur(80px);
            border-radius: 50%;
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-soft);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color .2s ease;
        }

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

        .breadcrumb .sep {
            color: var(--text-soft);
            font-size: 10px;
        }

        .page-header h1 {
            font-size: clamp(30px, 5vw, 46px);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .page-header .header-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 820px;
            line-height: 1.8;
        }

        .page-header .header-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(25, 227, 194, 0.08);
            border: 1px solid rgba(25, 227, 194, 0.25);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .stat-badge .num {
            font-family: var(--font-display);
            font-weight: 800;
            color: var(--gold);
        }

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

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: clamp(24px, 3.5vw, 32px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }

        .section-sub {
            font-size: 14px;
            color: var(--text-soft);
            max-width: 600px;
            line-height: 1.7;
        }

        /* 卡片 */
        .data-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all .25s ease;
            position: relative;
        }

        .data-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
        }

        .data-card .card-gradient-line {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-brand);
            opacity: 0.6;
        }

        .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            background: #0e1117;
            overflow: hidden;
        }

        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .data-card:hover .card-image img {
            transform: scale(1.05);
        }

        .card-image .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 13, 18, 0.05) 40%, rgba(11, 13, 18, 0.9) 100%);
        }

        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
            z-index: 2;
        }

        .card-body {
            padding: 20px 22px 22px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-soft);
        }

        /* 数据徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
            transition: all .2s ease;
        }

        .badge-cyan {
            background: rgba(25, 227, 194, 0.1);
            color: var(--primary);
            border: 1px solid rgba(25, 227, 194, 0.3);
        }

        .badge-pink {
            background: rgba(244, 63, 126, 0.1);
            color: var(--secondary);
            border: 1px solid rgba(244, 63, 126, 0.3);
        }

        .badge-gold {
            background: rgba(255, 176, 32, 0.1);
            color: var(--gold);
            border: 1px solid rgba(255, 176, 32, 0.3);
        }

        .badge .badge-num {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 13px;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #041014;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: none;
            cursor: pointer;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(25, 227, 194, 0.25);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: 1px solid rgba(25, 227, 194, 0.6);
            cursor: pointer;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(25, 227, 194, 0.08);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* 筛选工具条 */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 16px 18px;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-size: 12px;
            color: var(--text-soft);
            margin-right: 4px;
            white-space: nowrap;
        }

        .filter-chip {
            font-size: 13px;
            color: var(--text-muted);
            padding: 5px 13px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: transparent;
            cursor: pointer;
            transition: all .2s ease;
            white-space: nowrap;
        }

        .filter-chip:hover {
            color: var(--primary);
            border-color: rgba(25, 227, 194, 0.4);
            background: rgba(25, 227, 194, 0.05);
        }

        .filter-chip.active {
            color: #041014;
            background: var(--gradient-brand);
            border-color: transparent;
            font-weight: 700;
        }

        .filter-select {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 7px 14px;
            font-size: 13px;
            color: var(--text);
            cursor: pointer;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 34px;
        }

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

        /* 排名徽章条 */
        .rank-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .rank-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 12px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 180px;
            transition: all .25s ease;
            flex: 1;
        }

        .rank-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .rank-num {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 26px;
            color: var(--gold);
            line-height: 1;
        }

        .rank-info {
            display: flex;
            flex-direction: column;
        }

        .rank-label {
            font-size: 12px;
            color: var(--text-soft);
        }

        .rank-value {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 17px;
            color: var(--text);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 18px 22px;
            transition: all .25s ease;
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(25, 227, 194, 0.35);
        }

        .faq-item.open {
            border-color: rgba(25, 227, 194, 0.5);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-weight: 700;
            font-size: 15px;
            color: var(--text);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(25, 227, 194, 0.12);
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: transform .3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 12px;
            padding-left: 14px;
            border-left: 3px solid var(--primary);
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* 文章列表 */
        .article-list-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            transition: all .25s ease;
        }

        .article-list-item:hover {
            border-color: var(--border-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .article-list-item .article-dot {
            width: 8px;
            height: 8px;
            border-radius: 999px;
            background: var(--gradient-brand);
            margin-top: 8px;
            flex-shrink: 0;
        }

        .article-list-item .article-content {
            flex: 1;
        }

        .article-list-item .article-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .article-list-item .article-date {
            font-size: 12px;
            color: var(--text-soft);
        }

        /* 底部固定转化条 */
        .bottom-cta-bar {
            position: fixed;
            bottom: 12px;
            left: 16px;
            right: 16px;
            z-index: 55;
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
            padding: 10px 14px;
            display: flex;
            align-items: center;
            gap: 12px;
            justify-content: space-between;
        }

        .bottom-cta-bar .cta-text {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .bottom-cta-bar .cta-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .bottom-cta-bar .btn-primary {
            padding: 8px 18px;
            font-size: 13px;
        }

        .bottom-cta-bar .btn-secondary {
            padding: 8px 18px;
            font-size: 13px;
        }

        /* 页脚 */
        .footer-section {
            background: #07090E;
            border-top: 1px solid var(--border);
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .footer-brand {
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .footer-link {
            font-size: 13px;
            color: var(--text-soft);
            transition: color .2s ease;
            padding: 2px 0;
        }

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

        .footer-copyright {
            font-size: 12px;
            color: var(--text-soft);
            line-height: 1.8;
            text-align: center;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }
            .rank-item {
                min-width: 150px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .page-header {
                padding: 36px 0 28px;
            }
            .page-header h1 {
                font-size: 28px;
            }
            .float-nav-header {
                top: 8px;
                margin: 8px 8px 0;
            }
            .float-nav {
                border-radius: 18px;
            }
            .bottom-cta-bar {
                bottom: 8px;
                left: 8px;
                right: 8px;
                border-radius: 16px;
                padding: 8px 10px;
                flex-wrap: wrap;
            }
            .bottom-cta-bar .cta-text {
                width: 100%;
                font-size: 12px;
                text-align: center;
            }
            .bottom-cta-bar .cta-actions {
                width: 100%;
                justify-content: center;
                gap: 6px;
            }
            .bottom-cta-bar .btn-primary,
            .bottom-cta-bar .btn-secondary {
                padding: 7px 14px;
                font-size: 12px;
                flex: 1;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                margin-bottom: 20px;
            }
            .section-title {
                font-size: 24px;
            }
            .filter-bar {
                padding: 12px;
                gap: 8px;
            }
            .filter-group {
                width: 100%;
                gap: 5px;
            }
            .filter-label {
                width: 100%;
                margin-bottom: 2px;
            }
            .filter-chip {
                font-size: 12px;
                padding: 4px 10px;
            }
            .rank-strip {
                flex-direction: column;
                gap: 8px;
            }
            .rank-item {
                min-width: auto;
                padding: 10px 14px;
            }
            .rank-num {
                font-size: 22px;
            }
            .rank-value {
                font-size: 15px;
            }
            .article-list-item {
                padding: 14px 16px;
                flex-direction: column;
                gap: 8px;
            }
            .faq-item {
                padding: 14px 16px;
            }
            .faq-question {
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-header h1 {
                font-size: 24px;
            }
            .stat-badge {
                font-size: 11px;
                padding: 4px 10px;
            }
            .data-card .card-body {
                padding: 16px;
            }
            .card-title {
                font-size: 16px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #0B0D12;
            --surface: #131722;
            --surface-2: #171B29;
            --primary: #19E3C2;
            --secondary: #F43F7E;
            --gold: #FFB020;
            --text: #F2F5F9;
            --text-muted: #A2A9B8;
            --text-soft: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(25, 227, 194, 0.6);
            --radius-card: 22px;
            --radius-btn: 999px;
            --radius-input: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 24px 60px rgba(0, 0, 0, 0.5);
            --gradient-brand: linear-gradient(135deg, var(--primary), var(--secondary));
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-display: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 52px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 80px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 内缩圆角浮动导航 */
        .float-nav-header {
            position: sticky;
            top: 12px;
            z-index: 60;
            margin: 12px 16px 0;
            padding: 0;
        }

        .float-nav {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .float-nav.scrolled {
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(25, 227, 194, 0.25);
        }

        .nav-logo-text {
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.01em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }

        .nav-link {
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 999px;
            transition: all .2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
        }

        .nav-link.active {
            color: #041014;
            background: var(--gradient-brand);
            font-weight: 700;
        }

        .mobile-menu-panel {
            background: rgba(13, 15, 22, 0.95);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: var(--shadow-card);
        }

        /* 分类页眉 H1 区 */
        .category-header {
            position: relative;
            min-height: 160px;
            display: flex;
            align-items: center;
            padding: 36px 0 30px;
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.06), rgba(244, 63, 126, 0.05)), linear-gradient(180deg, #0B0D12 0%, #0F1116 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .category-header::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/94705fc6abaf09f1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
            z-index: 0;
        }

        .category-header>* {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-item {
            font-size: 13px;
            color: var(--text-soft);
            transition: color .2s ease;
        }

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

        .breadcrumb-sep {
            color: var(--text-soft);
            font-size: 13px;
            margin: 0 6px;
        }

        .category-h1 {
            font-size: clamp(26px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }

        .category-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
        }

        .count-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            padding: 5px 13px;
            border-radius: 999px;
            background: rgba(255, 176, 32, 0.1);
            border: 1px solid rgba(255, 176, 32, 0.3);
            color: var(--gold);
            white-space: nowrap;
        }

        .count-badge .num {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 15px;
        }

        /* 板块通用 */
        .section-pad {
            padding: var(--section-pad) 0;
        }

        .section-pad-sm {
            padding: 52px 0;
        }

        .section-title {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-sub {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .section-divider {
            height: 1px;
            background: var(--border);
            margin: 0;
            border: none;
        }

        /* 卡片 */
        .card-base {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            overflow: hidden;
        }

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

        .card-hover-static:hover {
            box-shadow: var(--shadow-card);
            border-color: var(--border);
            transform: none;
        }

        .card-gradient-top {
            background:
                linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 100%),
                var(--surface);
        }

        .card-gradient-line {
            position: relative;
        }

        .card-gradient-line::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-brand);
            border-radius: 3px 3px 0 0;
            opacity: 0.6;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #041014;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(25, 227, 194, 0.3);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: none;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-size: 15px;
            transition: all .25s ease;
            border: 1px solid var(--primary);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(25, 227, 194, 0.08);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .btn-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(25, 227, 194, 0.06);
            border: 1px solid rgba(25, 227, 194, 0.35);
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-btn);
            padding: 14px 30px;
            transition: all .25s ease;
            cursor: pointer;
        }

        .btn-more:hover {
            background: rgba(25, 227, 194, 0.14);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* 标签 */
        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            padding: 7px 16px;
            border-radius: 999px;
            background: var(--surface-2);
            border: 1px solid var(--border);
            color: var(--text-muted);
            transition: all .2s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .tag-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(25, 227, 194, 0.06);
        }

        .tag-item.active-tag {
            background: var(--gradient-brand);
            border-color: transparent;
            color: #041014;
            font-weight: 700;
        }

        .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 999px;
            background: var(--primary);
            flex-shrink: 0;
        }

        .tag-dot.hot {
            background: var(--secondary);
        }

        .article-tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.1);
            border: 1px solid rgba(25, 227, 194, 0.25);
            color: var(--primary);
            white-space: nowrap;
        }

        .article-tag.pink {
            background: rgba(244, 63, 126, 0.1);
            border-color: rgba(244, 63, 126, 0.25);
            color: var(--secondary);
        }

        .article-tag.gold {
            background: rgba(255, 176, 32, 0.1);
            border-color: rgba(255, 176, 32, 0.25);
            color: var(--gold);
        }

        /* 数据徽章 */
        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            background: rgba(255, 176, 32, 0.08);
            border: 1px solid rgba(255, 176, 32, 0.25);
            color: var(--gold);
            white-space: nowrap;
        }

        .stat-badge .num {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 15px;
        }

        .stat-badge.cyan {
            background: rgba(25, 227, 194, 0.08);
            border-color: rgba(25, 227, 194, 0.25);
            color: var(--primary);
        }

        .stat-badge.pink {
            background: rgba(244, 63, 126, 0.08);
            border-color: rgba(244, 63, 126, 0.25);
            color: var(--secondary);
        }

        /* 文章列表卡片 */
        .news-card {
            display: flex;
            flex-direction: column;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all .3s ease;
        }

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

        .news-card-cover {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }

        .news-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .news-card-title {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text);
            transition: color .2s ease;
        }

        .news-card:hover .news-card-title {
            color: var(--primary);
        }

        .news-card-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-soft);
            margin-top: auto;
        }

        /* 热点榜单 */
        .hot-rank-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 16px;
            border-radius: 16px;
            background: var(--surface-2);
            border: 1px solid var(--border);
            transition: all .25s ease;
            cursor: pointer;
        }

        .hot-rank-item:hover {
            border-color: var(--border-hover);
            background: rgba(25, 227, 194, 0.04);
            transform: translateX(4px);
        }

        .hot-rank-num {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 22px;
            color: var(--primary);
            line-height: 1;
            min-width: 32px;
            text-align: center;
            flex-shrink: 0;
        }

        .hot-rank-num.top1 {
            color: var(--gold);
        }

        .hot-rank-num.top2 {
            color: #C0C6D2;
        }

        .hot-rank-num.top3 {
            color: #D08A55;
        }

        /* 表单 */
        .input-field {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 12px 18px;
            font-size: 14px;
            color: var(--text);
            width: 100%;
            transition: all .25s ease;
        }

        .input-field::placeholder {
            color: var(--text-soft);
        }

        .input-field:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(25, 227, 194, 0.1);
        }

        /* 订阅表单卡片 */
        .subscribe-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 36px 40px;
            position: relative;
            overflow: hidden;
        }

        .subscribe-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-brand);
            opacity: 0.7;
        }

        /* 底部固定转化条 */
        .fixed-cta-bar {
            position: fixed;
            bottom: 12px;
            left: 0;
            right: 0;
            z-index: 50;
            margin: 0 16px;
            pointer-events: none;
        }

        .fixed-cta-inner {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(25, 227, 194, 0.2);
            border-radius: 20px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.48);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            pointer-events: auto;
        }

        .fixed-cta-text {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .fixed-cta-text strong {
            color: var(--text);
            font-weight: 700;
        }

        /* 页脚 */
        .footer-section {
            background: #07090D;
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
            margin-top: 40px;
        }

        .footer-brand {
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .footer-link {
            font-size: 14px;
            color: var(--text-soft);
            transition: color .2s ease;
            display: inline-block;
        }

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

        .footer-copyright {
            font-size: 12px;
            color: var(--text-soft);
        }

        /* 响应式补充 */
        @media (max-width: 1024px) {
            .section-pad {
                padding: 72px 0;
            }
            .section-pad-sm {
                padding: 44px 0;
            }
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: var(--section-pad-mobile) 0;
            }
            .section-pad-sm {
                padding: 40px 0;
            }
            .category-header {
                min-height: 140px;
                padding: 28px 0 24px;
            }
            .subscribe-card {
                padding: 26px 22px;
            }
            .fixed-cta-inner {
                flex-direction: column;
                gap: 10px;
                align-items: stretch;
                text-align: center;
                padding: 12px 16px;
            }
            .fixed-cta-text {
                font-size: 13px;
            }
            .news-card-cover {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-header {
                min-height: 130px;
                padding: 22px 0 20px;
            }
            .category-h1 {
                font-size: 22px;
            }
            .category-desc {
                font-size: 13px;
            }
            .section-title {
                font-size: 20px;
            }
            .news-card-cover {
                height: 180px;
            }
            .hot-rank-item {
                padding: 10px 12px;
            }
            .hot-rank-num {
                font-size: 18px;
                min-width: 26px;
            }
            .subscribe-card {
                padding: 20px 16px;
            }
            .btn-primary {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-secondary {
                padding: 9px 16px;
                font-size: 14px;
            }
            .fixed-cta-bar {
                margin: 0 8px;
                bottom: 8px;
            }
            .fixed-cta-inner {
                border-radius: 16px;
            }
        }

/* roulang page: category5 */
/* ============ 设计系统 ============ */
        :root {
            --bg: #0B0D12;
            --surface: #131722;
            --surface-2: #171B29;
            --primary: #19E3C2;
            --secondary: #F43F7E;
            --gold: #FFB020;
            --text: #F2F5F9;
            --text-muted: #A2A9B8;
            --text-soft: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(25, 227, 194, 0.6);
            --radius-card: 22px;
            --radius-btn: 999px;
            --radius-input: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 24px 60px rgba(0, 0, 0, 0.5);
            --gradient-brand: linear-gradient(135deg, var(--primary), var(--secondary));
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-display: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 52px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 100px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ 内缩圆角浮动导航 ============ */
        .float-nav-header {
            position: sticky;
            top: 12px;
            z-index: 60;
            margin: 12px 16px 0;
            padding: 0;
        }

        .float-nav {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .float-nav.scrolled {
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(25, 227, 194, 0.25);
        }

        .nav-logo-text {
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.01em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }

        .nav-link {
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 999px;
            transition: all .2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
        }

        .nav-link.active {
            color: #041014;
            background: var(--gradient-brand);
            font-weight: 700;
        }

        .mobile-menu-panel {
            background: rgba(13, 15, 22, 0.95);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: var(--shadow-card);
        }

        /* ============ 分类页眉 ============ */
        .category-header {
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.07), rgba(244, 63, 126, 0.07)), var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            margin-bottom: 32px;
            min-height: 120px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .category-header::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -20px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(25, 227, 194, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .breadcrumb a {
            color: var(--text-muted);
            transition: color .2s;
        }

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

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

        .category-h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }

        .category-summary {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 640px;
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(25, 227, 194, 0.1);
            color: var(--primary);
            border: 1px solid rgba(25, 227, 194, 0.35);
            white-space: nowrap;
        }

        .badge-gold {
            background: rgba(255, 176, 32, 0.12);
            color: var(--gold);
            border-color: rgba(255, 176, 32, 0.4);
        }

        .badge-pink {
            background: rgba(244, 63, 126, 0.12);
            color: var(--secondary);
            border-color: rgba(244, 63, 126, 0.4);
        }

        /* ============ 通用 section ============ */
        .section-block {
            padding: 36px 0;
        }

        .section-title {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 24px;
        }

        /* ============ 卡片 ============ */
        .card-dark {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }

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

        .card-dark::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-brand);
            opacity: 0;
            transition: opacity .3s ease;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .card-dark:hover::before {
            opacity: 1;
        }

        .card-image {
            border-radius: 16px;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--surface-2);
            position: relative;
        }

        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .card-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            background: rgba(25, 227, 194, 0.1);
            color: var(--primary);
            border: 1px solid rgba(25, 227, 194, 0.3);
        }

        /* ============ 按钮 ============ */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #041014;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: none;
            cursor: pointer;
            gap: 8px;
        }

        .btn-primary:hover {
            filter: brightness(1.12);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(25, 227, 194, 0.3);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-size: 15px;
            transition: all .25s ease;
            border: 1px solid var(--primary);
            cursor: pointer;
            gap: 8px;
        }

        .btn-secondary:hover {
            background: rgba(25, 227, 194, 0.08);
            transform: translateY(-2px);
        }

        /* ============ 数据徽章 ============ */
        .data-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            color: var(--text-muted);
            white-space: nowrap;
        }

        .data-badge .num {
            font-family: var(--font-display);
            font-weight: 700;
            color: var(--gold);
            font-size: 14px;
        }

        .data-badge .num-green {
            color: var(--primary);
        }

        /* ============ 倒计时 ============ */
        .countdown-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 18px;
        }

        .countdown-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }

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

        .countdown-timer {
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.04em;
            margin-top: 10px;
            display: flex;
            gap: 4px;
            align-items: baseline;
            flex-wrap: wrap;
        }

        .countdown-unit {
            background: rgba(25, 227, 194, 0.08);
            padding: 3px 8px;
            border-radius: 8px;
            font-size: 18px;
            border: 1px solid rgba(25, 227, 194, 0.25);
            display: inline-block;
            min-width: 36px;
            text-align: center;
        }

        .countdown-label {
            font-size: 11px;
            color: var(--text-soft);
            letter-spacing: 0;
            font-family: var(--font-sans);
            font-weight: 400;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            overflow: hidden;
            transition: all .3s ease;
        }

        .faq-item:hover {
            border-color: rgba(25, 227, 194, 0.4);
        }

        .faq-item summary {
            padding: 18px 22px;
            font-weight: 700;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 15px;
            transition: color .2s;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 22px;
            height: 22px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.1);
            border: 1px solid rgba(25, 227, 194, 0.4);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
            transition: transform .3s ease;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--gradient-brand);
            color: #041014;
            border-color: transparent;
        }

        .faq-answer {
            padding: 0 22px 18px 58px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            border-left: 3px solid var(--primary);
            margin-left: 22px;
            border-radius: 0 0 0 8px;
        }

        /* ============ 底部固定转化条 ============ */
        .fixed-cta-bar {
            position: fixed;
            bottom: 16px;
            left: 16px;
            right: 16px;
            z-index: 55;
            max-width: 960px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            box-shadow: 0 18px 64px rgba(0, 0, 0, 0.55);
            padding: 12px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            flex-wrap: wrap;
        }

        .fixed-cta-text {
            font-size: 13px;
            color: var(--text-muted);
            max-width: 340px;
            line-height: 1.5;
        }

        .fixed-cta-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        /* ============ 页脚 ============ */
        .footer-section {
            background: #080A0E;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 48px 0 32px;
            margin-top: 40px;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 18px;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .footer-link {
            font-size: 13px;
            color: var(--text-soft);
            transition: color .2s;
            line-height: 1.8;
        }

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

        .footer-copyright {
            font-size: 12px;
            color: var(--text-soft);
        }

        /* ============ 弹幕热榜 ============ */
        .danmaku-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 16px;
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all .2s;
        }

        .danmaku-item:hover {
            background: rgba(25, 227, 194, 0.05);
            border-color: rgba(25, 227, 194, 0.2);
        }

        .danmaku-rank {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 18px;
            color: var(--gold);
            min-width: 28px;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 768px) {
            .category-header {
                padding: 20px 18px;
                min-height: 100px;
            }
            .section-block {
                padding: 22px 0;
            }
            .float-nav-header {
                margin: 8px 10px 0;
                top: 8px;
            }
            .float-nav {
                border-radius: 18px;
            }
            .countdown-grid {
                grid-template-columns: 1fr;
            }
            .fixed-cta-bar {
                flex-direction: column;
                text-align: center;
                padding: 12px;
                bottom: 10px;
                left: 10px;
                right: 10px;
                border-radius: 16px;
            }
            .fixed-cta-text {
                max-width: 100%;
                font-size: 12px;
            }
            .fixed-cta-actions {
                width: 100%;
                justify-content: center;
            }
            .faq-answer {
                padding: 0 16px 14px 16px;
                margin-left: 14px;
                font-size: 13px;
            }
            .faq-item summary {
                padding: 14px 16px;
                font-size: 14px;
            }
            .data-badge {
                font-size: 11px;
                padding: 4px 10px;
            }
            .data-badge .num {
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            body {
                padding-bottom: 130px;
            }
            .category-h1 {
                font-size: 24px;
            }
            .category-summary {
                font-size: 13px;
            }
            .badge-pill {
                font-size: 10px;
                padding: 4px 10px;
            }
            .section-title {
                font-size: 20px;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 13px;
                padding: 10px 18px;
            }
        }

        @media (min-width: 1024px) {
            .section-block {
                padding: 42px 0;
            }
        }

/* roulang page: category6 */
:root {
            --bg: #0B0D12;
            --surface: #131722;
            --surface-2: #171B29;
            --primary: #19E3C2;
            --secondary: #F43F7E;
            --gold: #FFB020;
            --text: #F2F5F9;
            --text-muted: #A2A9B8;
            --text-soft: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(25, 227, 194, 0.6);
            --radius-card: 22px;
            --radius-btn: 999px;
            --radius-input: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 24px 60px rgba(0, 0, 0, 0.5);
            --gradient-brand: linear-gradient(135deg, var(--primary), var(--secondary));
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-display: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
            --section-pad: 96px;
            --section-pad-mobile: 52px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 6px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 内缩圆角浮动导航 */
        .float-nav-header {
            position: sticky;
            top: 12px;
            z-index: 60;
            margin: 12px 16px 0;
            padding: 0;
        }
        .float-nav {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(13, 15, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
            transition: box-shadow .3s ease, border-color .3s ease;
        }
        .float-nav.scrolled {
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(25, 227, 194, 0.25);
        }
        .nav-logo-text {
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.01em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }
        .nav-link {
            font-size: 14px;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 999px;
            transition: all .2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
        }
        .nav-link.active {
            color: #041014;
            background: var(--gradient-brand);
            font-weight: 700;
        }
        .mobile-menu-panel {
            background: rgba(13, 15, 22, 0.95);
            backdrop-filter: blur(18px);
            border: 1px solid var(--border);
            border-radius: 22px;
            box-shadow: var(--shadow-card);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #041014;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 26px;
            font-size: 15px;
            transition: all .25s ease;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(25, 227, 194, 0.28);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 15px;
            transition: all .25s ease;
            border: 1px solid var(--primary);
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(25, 227, 194, 0.08);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        /* 板块通用 */
        .section-block {
            padding: var(--section-pad) 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
            border: 1px solid rgba(25, 227, 194, 0.2);
            border-radius: 999px;
            padding: 6px 14px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(24px, 3.4vw, 32px);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.85;
        }
        /* 深色卡片 */
        .card-dark {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            overflow: hidden;
        }
        .card-dark:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
        }
        .card-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--surface-2);
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .card-dark:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .card-body {
            padding: 20px 22px;
        }
        .card-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.4;
        }
        .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .badge-data {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-family: var(--font-display);
            font-size: 13px;
            font-weight: 700;
            color: var(--gold);
            background: rgba(255, 176, 32, 0.1);
            border: 1px solid rgba(255, 176, 32, 0.25);
            border-radius: 999px;
            padding: 4px 12px;
            white-space: nowrap;
        }
        .badge-primary {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-family: var(--font-display);
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(25, 227, 194, 0.08);
            border: 1px solid rgba(25, 227, 194, 0.2);
            border-radius: 999px;
            padding: 4px 12px;
            white-space: nowrap;
        }
        .badge-secondary {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-family: var(--font-display);
            font-size: 13px;
            font-weight: 700;
            color: var(--secondary);
            background: rgba(244, 63, 126, 0.08);
            border: 1px solid rgba(244, 63, 126, 0.2);
            border-radius: 999px;
            padding: 4px 12px;
            white-space: nowrap;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 3px 10px;
        }
        /* 分类页眉 */
        .category-header {
            background: linear-gradient(135deg, rgba(25, 227, 194, 0.08), rgba(244, 63, 126, 0.06)), rgba(19, 23, 34, 0.7);
            border-bottom: 1px solid var(--border);
            padding: 36px 0 30px;
            min-height: 140px;
            display: flex;
            align-items: center;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-soft);
            margin-bottom: 10px;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--text-soft);
            font-size: 12px;
        }
        .category-h1 {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.25;
            margin-bottom: 8px;
        }
        .category-summary {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.75;
            margin-bottom: 14px;
        }
        /* 参数徽章条 */
        .param-scroll {
            display: flex;
            gap: 14px;
            overflow-x: auto;
            padding-bottom: 8px;
            scrollbar-width: thin;
            scrollbar-color: rgba(25, 227, 194, 0.4) transparent;
        }
        .param-scroll::-webkit-scrollbar {
            height: 4px;
        }
        .param-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .param-scroll::-webkit-scrollbar-thumb {
            background: rgba(25, 227, 194, 0.4);
            border-radius: 999px;
        }
        .param-item {
            flex-shrink: 0;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 16px 22px;
            min-width: 160px;
            text-align: center;
            transition: all .25s ease;
        }
        .param-item:hover {
            border-color: var(--border-hover);
            background: var(--surface-2);
        }
        .param-value {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .param-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
        }
        /* 排名列表 */
        .rank-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 16px 20px;
            transition: all .25s ease;
            margin-bottom: 12px;
        }
        .rank-list-item:hover {
            border-color: var(--border-hover);
            background: var(--surface-2);
        }
        .rank-num {
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 800;
            color: var(--gold);
            min-width: 36px;
            text-align: center;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }
        .rank-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        /* FAQ */
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .3s ease;
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 22px;
            font-weight: 700;
            font-size: 15px;
            color: var(--text);
            text-align: left;
            background: transparent;
            border: none;
            cursor: pointer;
            gap: 16px;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 999px;
            background: rgba(25, 227, 194, 0.08);
            border: 1px solid rgba(25, 227, 194, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            transition: transform .3s ease;
            user-select: none;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .3s ease;
            padding: 0 22px;
            border-left: 3px solid transparent;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
            border-left-color: var(--primary);
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        /* 页脚 */
        .footer-section {
            background: #080A0F;
            border-top: 1px solid var(--border);
            padding: 56px 0 28px;
            margin-top: 24px;
        }
        .footer-brand {
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .footer-link {
            font-size: 14px;
            color: var(--text-muted);
            transition: color .2s ease;
        }
        .footer-link:hover {
            color: var(--primary);
        }
        .footer-copyright {
            font-size: 13px;
            color: var(--text-soft);
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 64px;
            }
            .card-body {
                padding: 16px 18px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
            }
            .category-header {
                padding: 24px 0 20px;
                min-height: 100px;
            }
            .section-title {
                font-size: 22px;
            }
            .param-item {
                min-width: 130px;
                padding: 12px 16px;
            }
            .param-value {
                font-size: 20px;
            }
            .rank-list-item {
                padding: 12px 14px;
                gap: 10px;
            }
            .rank-num {
                font-size: 18px;
                min-width: 28px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .float-nav-header {
                margin: 8px 8px 0;
                top: 8px;
            }
            .category-h1 {
                font-size: 22px;
            }
            .category-summary {
                font-size: 14px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 14px;
            }
        }