/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --bg-primary: #0a0e18;
            --bg-secondary: #111625;
            --bg-card: #151b2b;
            --bg-card-hover: #1a2135;
            --bg-elevated: #1c2438;
            --text-primary: #e8ecf4;
            --text-secondary: #b0bdd0;
            --text-muted: #6b7a96;
            --accent-primary: #ff5c28;
            --accent-primary-glow: rgba(255, 92, 40, 0.35);
            --accent-secondary: #f5a623;
            --accent-tertiary: #00d9a6;
            --accent-tertiary-glow: rgba(0, 217, 166, 0.3);
            --border-color: #222b3d;
            --border-light: #2a354d;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.55);
            --shadow-glow: 0 4px 20px var(--accent-primary-glow);
            --shadow-glow-green: 0 4px 20px var(--accent-tertiary-glow);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
            --container-max: 1240px;
            --header-height: 68px;
            --header-height-mobile: 52px;
            --bottom-tab-height: 62px;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-bottom: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
        }
        h1 {
            font-size: 3rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.35rem;
        }

        /* ========== 容器 ========== */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 顶部导航 Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 14, 24, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal), box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            background: rgba(10, 14, 24, 0.95);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--accent-primary);
        }
        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .header-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .header-nav a.active {
            color: #fff;
            background: rgba(255, 92, 40, 0.15);
            box-shadow: inset 0 0 0 1px rgba(255, 92, 40, 0.3);
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent-primary);
        }
        .header-nav .nav-badge {
            font-size: 0.7rem;
            background: var(--accent-tertiary);
            color: #000;
            padding: 2px 7px;
            border-radius: 20px;
            font-weight: 700;
            letter-spacing: 0.03em;
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        /* ========== 主内容区 ========== */
        main {
            min-height: 60vh;
        }

        /* ========== Hero 首屏 ========== */
        .hero {
            position: relative;
            background: linear-gradient(170deg, #0d1120 0%, #0a0e18 40%, #111a2e 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 90px 0 100px;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 92, 40, 0.13) 0%, transparent 55%),
                radial-gradient(ellipse at 70% 30%, rgba(0, 217, 166, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(245, 166, 35, 0.06) 0%, transparent 45%);
            pointer-events: none;
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 14, 24, 0.45);
            z-index: 2;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 3;
        }
        .hero-content {
            max-width: 680px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 92, 40, 0.18);
            border: 1px solid rgba(255, 92, 40, 0.3);
            border-radius: 50px;
            padding: 7px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-primary);
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }
        .hero-badge .live-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--accent-tertiary);
            animation: live-pulse 1.5s infinite;
            box-shadow: 0 0 10px var(--accent-tertiary-glow);
        }
        @keyframes live-pulse {
            0%,
            100% {
                box-shadow: 0 0 6px var(--accent-tertiary-glow);
            }
            50% {
                box-shadow: 0 0 18px var(--accent-tertiary-glow), 0 0 32px rgba(0, 217, 166, 0.5);
            }
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            margin-bottom: 18px;
            line-height: 1.18;
            color: #fff;
            text-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 520px;
            line-height: 1.7;
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-primary), #e64a1c);
            color: #fff;
            box-shadow: var(--shadow-glow);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(255, 92, 40, 0.5);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-glow);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 3px;
        }

        /* ========== 板块通用间距 ========== */
        .section {
            padding: 70px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 10px;
            color: #fff;
        }
        .section-header .section-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 500px;
            margin: 0 auto;
        }
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-primary);
            margin-bottom: 8px;
        }

        /* ========== 核心优势板块 ========== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .advantage-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .advantage-card:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .advantage-card:hover::before {
            opacity: 1;
        }
        .advantage-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
            flex-shrink: 0;
        }
        .advantage-icon.orange {
            background: rgba(255, 92, 40, 0.15);
            color: var(--accent-primary);
        }
        .advantage-icon.green {
            background: rgba(0, 217, 166, 0.15);
            color: var(--accent-tertiary);
        }
        .advantage-icon.gold {
            background: rgba(245, 166, 35, 0.15);
            color: var(--accent-secondary);
        }
        .advantage-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: #fff;
        }
        .advantage-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ========== 分类入口板块 ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 24px;
        }
        .category-entry-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .category-entry-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }
        .category-entry-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        .category-entry-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .category-entry-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .category-entry-card .card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 14, 24, 0.75) 0%, transparent 50%);
        }
        .category-entry-card .card-body {
            padding: 22px 24px 24px;
        }
        .category-entry-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--accent-primary);
            background: rgba(255, 92, 40, 0.12);
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
        }
        .category-entry-card h3 {
            font-size: 1.25rem;
            margin-bottom: 6px;
            color: #fff;
        }
        .category-entry-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.55;
        }
        .category-entry-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-primary);
            transition: gap var(--transition-fast);
        }
        .category-entry-card .card-link:hover {
            gap: 10px;
            color: var(--accent-secondary);
        }

        /* ========== 实时数据面板 ========== */
        .stats-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-item {
            padding: 24px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: all var(--transition-normal);
        }
        .stat-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-value {
            font-size: 2.4rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .stat-live-indicator {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.75rem;
            color: var(--accent-tertiary);
            font-weight: 600;
            margin-top: 6px;
        }
        .stat-live-indicator .mini-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-tertiary);
            animation: live-pulse 1.5s infinite;
        }

        /* ========== 最新信息列表 CMS ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 860px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .news-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateX(3px);
        }
        .news-item .news-rank {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.9rem;
            background: var(--bg-elevated);
            color: var(--text-muted);
        }
        .news-item .news-rank.top1 {
            background: linear-gradient(135deg, #f5a623, #e8961a);
            color: #000;
        }
        .news-item .news-rank.top2 {
            background: linear-gradient(135deg, #a0b4c8, #8899aa);
            color: #000;
        }
        .news-item .news-rank.top3 {
            background: linear-gradient(135deg, #c0885c, #a07248);
            color: #000;
        }
        .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-item .news-meta {
            display: flex;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .news-item .news-arrow {
            flex-shrink: 0;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            font-size: 0.85rem;
        }
        .news-item:hover .news-arrow {
            color: var(--accent-primary);
            transform: translateX(4px);
        }
        .news-empty {
            text-align: center;
            padding: 40px;
            color: var(--text-muted);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
            max-width: 860px;
            margin: 0 auto;
        }

        /* ========== 热门排行板块 ========== */
        .ranking-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .ranking-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .ranking-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .ranking-card .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            font-weight: 900;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .ranking-card .rank-badge.gold {
            background: linear-gradient(135deg, #f5a623, #d4891a);
            color: #000;
            box-shadow: 0 4px 16px rgba(245, 166, 35, 0.4);
        }
        .ranking-card .rank-badge.silver {
            background: linear-gradient(135deg, #bcc6d0, #95a0ad);
            color: #000;
            box-shadow: 0 4px 14px rgba(160, 180, 200, 0.3);
        }
        .ranking-card .rank-badge.bronze {
            background: linear-gradient(135deg, #c8986a, #a07848);
            color: #000;
            box-shadow: 0 4px 14px rgba(192, 136, 92, 0.35);
        }
        .ranking-card h4 {
            font-size: 1.05rem;
            color: #fff;
            margin-bottom: 4px;
        }
        .ranking-card .rank-score {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== 社区亮点板块 ========== */
        .community-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .community-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: all var(--transition-normal);
        }
        .community-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .community-card .comm-icon {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            background: rgba(0, 217, 166, 0.12);
            color: var(--accent-tertiary);
        }
        .community-card h4 {
            font-size: 1.05rem;
            color: #fff;
            margin-bottom: 4px;
        }
        .community-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ========== FAQ 板块 ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            background: transparent;
            border: none;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 22px;
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.65;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 22px 18px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-primary);
        }
        .faq-item.open {
            border-color: var(--accent-primary);
            box-shadow: 0 0 0 1px rgba(255, 92, 40, 0.2);
        }

        /* ========== CTA 板块 ========== */
        .cta-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            text-align: center;
            padding: 70px 0;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: var(--text-muted);
            margin-bottom: 26px;
            font-size: 1rem;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 30px;
            text-align: center;
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 0.88rem;
        }
        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-primary);
        }
        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== 移动端底部 Tab 导航 ========== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            background: rgba(15, 20, 34, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-color);
            height: var(--bottom-tab-height);
            padding: 0 8px;
            padding-bottom: env(safe-area-inset-bottom, 0);
        }
        .bottom-tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }
        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            font-size: 0.68rem;
            font-weight: 600;
            color: var(--text-muted);
            padding: 6px 14px;
            border-radius: 30px;
            transition: all var(--transition-fast);
            flex: 1;
            text-align: center;
            cursor: pointer;
            text-decoration: none;
            -webkit-tap-highlight-color: transparent;
        }
        .bottom-tab-item i {
            font-size: 1.25rem;
            transition: color var(--transition-fast);
        }
        .bottom-tab-item.active {
            color: var(--accent-primary);
        }
        .bottom-tab-item.active i {
            color: var(--accent-primary);
        }
        .bottom-tab-item:active {
            background: rgba(255, 92, 40, 0.1);
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1024px) {
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ranking-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero {
                padding: 60px 0 70px;
                min-height: auto;
            }
            .community-grid {
                grid-template-columns: 1fr;
            }
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: var(--header-height-mobile);
            }
            .site-header .header-nav {
                display: none;
            }
            .header-inner {
                justify-content: center;
            }
            .header-logo {
                font-size: 1.2rem;
            }
            .header-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .hero {
                padding: 48px 0 56px;
                background-position: 60% center;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-btns {
                flex-direction: column;
                gap: 10px;
            }
            .btn {
                justify-content: center;
                width: 100%;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-value {
                font-size: 1.8rem;
            }
            .ranking-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .news-list {
                gap: 10px;
            }
            .news-item {
                padding: 14px 16px;
                gap: 12px;
            }
            .news-item .news-rank {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
            .news-item .news-title {
                font-size: 0.85rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-header {
                margin-bottom: 30px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 44px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .community-grid {
                grid-template-columns: 1fr;
            }
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .site-footer {
                padding-bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-value {
                font-size: 1.5rem;
            }
            .btn {
                font-size: 0.85rem;
                padding: 11px 20px;
            }
            .advantage-card {
                padding: 22px 18px;
            }
            .ranking-card {
                padding: 18px 14px;
            }
            .news-item {
                flex-wrap: wrap;
            }
            .news-item .news-rank {
                width: 26px;
                height: 26px;
                font-size: 0.7rem;
            }
            .bottom-tab-item {
                font-size: 0.62rem;
                padding: 4px 8px;
            }
            .bottom-tab-item i {
                font-size: 1.1rem;
            }
        }

        /* ========== 辅助动画 ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .delay-1 {
            animation-delay: 0.1s;
            opacity: 0;
        }
        .delay-2 {
            animation-delay: 0.2s;
            opacity: 0;
        }
        .delay-3 {
            animation-delay: 0.3s;
            opacity: 0;
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-primary);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 6px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

        /* 选中文本 */
        ::selection {
            background: rgba(255, 92, 40, 0.35);
            color: #fff;
        }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --secondary: #1d3557;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --surface: #ffffff;
            --text: #1a1a2e;
            --text-muted: #6c757d;
            --border: #dee2e6;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0,0,0,0.08);
            --shadow-hover: 0 20px 40px rgba(0,0,0,0.12);
            --transition: 0.25s ease;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }
        * { box-sizing: border-box; margin:0; padding:0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            padding-bottom: env(safe-area-inset-bottom, 0);
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        button { font-family: inherit; cursor: pointer; border: none; background: none; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* HEADER & NAV */
        .site-header {
            position: sticky; top:0; z-index: 1000;
            background: rgba(29,53,87,0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            height: var(--nav-height);
            display: flex; align-items: center;
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            width: 100%; max-width: var(--max-width); margin:0 auto; padding:0 20px;
        }
        .header-logo {
            display: flex; align-items: center; gap: 8px;
            font-size: 1.5rem; font-weight: 700; color: #fff;
            letter-spacing: -0.3px;
        }
        .logo-icon { font-size: 1.7rem; color: var(--accent); }
        .header-nav { display: flex; align-items: center; gap: 2.5rem; }
        .header-nav a {
            color: rgba(255,255,255,0.8);
            font-weight: 500; padding: 8px 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            font-size: 1rem;
            white-space: nowrap;
            display: flex; align-items: center; gap: 6px;
        }
        .header-nav a:hover, .header-nav a.active {
            color: #fff;
            border-bottom-color: var(--accent);
        }
        .nav-badge {
            background: var(--primary);
            color: #fff; font-size: 0.7rem; font-weight: 700;
            padding: 2px 7px; border-radius: 30px;
            line-height: 1;
        }

        /* Bottom Tab Navigation (Mobile) */
        .bottom-nav {
            display: none;
            position: fixed; bottom:0; left:0; right:0;
            background: var(--secondary);
            backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 8px 10px calc(8px + env(safe-area-inset-bottom, 0));
            z-index: 1000;
            justify-content: space-around;
            box-shadow: 0 -5px 20px rgba(0,0,0,0.25);
        }
        .bottom-nav a {
            display: flex; flex-direction: column; align-items: center; gap: 4px;
            color: rgba(255,255,255,0.65); font-size: 0.7rem; font-weight: 500;
            transition: color var(--transition);
        }
        .bottom-nav a i { font-size: 1.2rem; }
        .bottom-nav a.active, .bottom-nav a:hover { color: var(--accent); }
        .bottom-nav .nav-badge {
            position: absolute; top: -5px; right: -10px;
            background: var(--primary); font-size: 0.6rem; padding: 2px 6px;
        }
        @media (max-width: 768px) {
            .bottom-nav { display: flex; }
            .header-nav { display: none; }
            body { padding-bottom: 80px; }
        }

        /* ARTICLE BANNER */
        .article-banner {
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-attachment: fixed;
            position: relative;
            padding: 60px 0;
            color: #fff;
            text-align: center;
        }
        .article-banner::before {
            content: ''; position: absolute; inset:0;
            background: linear-gradient(135deg, rgba(29,53,87,0.85) 0%, rgba(230,57,70,0.7) 100%);
        }
        .banner-content { position: relative; z-index: 2; }
        .article-category-tag {
            display: inline-block;
            background: var(--accent); color: #1a1a2e;
            font-weight: 700; font-size: 0.85rem;
            padding: 5px 14px; border-radius: 30px;
            margin-bottom: 15px;
        }
        .article-banner h1 {
            font-size: 2.4rem; font-weight: 800; line-height: 1.3;
            max-width: 700px; margin:0 auto 12px;
        }
        .article-meta {
            font-size: 0.95rem; color: rgba(255,255,255,0.85);
            display: flex; align-items: center; justify-content: center; gap: 20px;
        }
        .article-meta i { margin-right: 4px; }

        /* MAIN CONTENT */
        .article-main {
            padding: 50px 0;
            background: var(--surface);
        }
        .article-content-wrapper {
            max-width: 780px;
            margin: 0 auto;
            background: var(--surface);
            border-radius: var(--radius);
            padding: 30px 35px;
            box-shadow: var(--shadow);
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text);
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 20px 0;
        }
        .article-body h2, .article-body h3 {
            margin: 25px 0 12px;
            color: var(--secondary);
        }
        .article-body p { margin-bottom: 1.2rem; }

        /* NOT FOUND */
        .not-found {
            min-height: 50vh;
            display: flex; flex-direction: column; align-items: center; justify-content: center;
            text-align: center;
            padding: 80px 20px;
        }
        .not-found h2 { font-size: 2rem; margin-bottom: 15px; }
        .btn-return {
            display: inline-block;
            background: var(--primary);
            color: #fff; font-weight: 600;
            padding: 12px 28px; border-radius: 30px;
            margin-top: 25px;
            transition: background var(--transition);
        }
        .btn-return:hover { background: var(--primary-dark); }

        /* LATEST POSTS SECTION */
        .latest-posts {
            padding: 60px 0;
            background: var(--bg);
        }
        .section-title {
            font-size: 2rem; font-weight: 800; color: var(--secondary);
            text-align: center; margin-bottom: 40px;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block; width: 60px; height: 4px;
            background: var(--primary); border-radius: 2px;
            margin: 12px auto 0;
        }
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 25px;
        }
        .post-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .post-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .post-card-img {
            height: 180px;
            background-size: cover; background-position: center;
        }
        .post-card-body { padding: 20px; }
        .post-card-body h3 {
            font-size: 1.15rem; font-weight: 700; margin-bottom: 8px;
            line-height: 1.4;
        }
        .post-card-body .post-card-meta {
            font-size: 0.85rem; color: var(--text-muted);
            display: flex; justify-content: space-between;
        }
        .post-card-link { display: block; color: inherit; }

        /* FOOTER */
        .site-footer {
            background: var(--secondary);
            color: rgba(255,255,255,0.8);
            padding: 40px 0 20px;
            text-align: center;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .footer-brand {
            font-size: 1.5rem; font-weight: 700; color: #fff;
            margin-bottom: 15px;
        }
        .footer-links {
            display: flex; flex-wrap: wrap; justify-content: center; gap: 25px;
            margin-bottom: 20px;
        }
        .footer-links a { color: rgba(255,255,255,0.7); transition: color var(--transition); }
        .footer-links a:hover { color: var(--accent); }
        .footer-copy { font-size: 0.85rem; color: rgba(255,255,255,0.5); }

        @media (max-width: 768px) {
            .header-inner { padding: 0 15px; }
            .article-banner { padding: 50px 15px; background-attachment: scroll; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-content-wrapper { padding: 20px; }
            .posts-grid { grid-template-columns: 1fr; }
        }

/* roulang page: category1 */
:root {
            --primary: #ff4655;
            --primary-dark: #d63031;
            --primary-light: #ff6b7a;
            --primary-glow: rgba(255, 70, 85, 0.35);
            --secondary: #1a1a2e;
            --secondary-light: #22223a;
            --accent: #ffd700;
            --accent-soft: #f0c040;
            --bg: #0d0d1a;
            --bg-alt: #111122;
            --card-bg: #181830;
            --card-bg-hover: #1e1e3a;
            --card-border: #2a2a45;
            --text: #e8e8f0;
            --text-strong: #ffffff;
            --text-muted: #9090a8;
            --text-dim: #6a6a80;
            --border: #2a2a40;
            --border-light: #353550;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 70, 85, 0.08);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.45), 0 0 0 2px rgba(255, 70, 85, 0.2);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --header-height: 68px;
            --bottom-tab-height: 60px;
            --section-gap: 64px;
            --section-gap-sm: 40px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--text-strong);
            font-weight: 700;
        }

        h1 {
            font-size: clamp(2rem, 4vw, 2.8rem);
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: clamp(1.5rem, 2.8vw, 2rem);
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: clamp(1.15rem, 1.8vw, 1.35rem);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: var(--container-narrow);
        }

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

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .section-title {
            margin-bottom: 8px;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin-bottom: 32px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: rgba(13, 13, 26, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition);
        }

        .header-inner {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-strong);
            white-space: nowrap;
            letter-spacing: -0.01em;
            transition: opacity var(--transition-fast);
        }
        .header-logo:hover {
            opacity: 0.85;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.1rem;
            box-shadow: 0 0 18px var(--primary-glow);
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.93rem;
            font-weight: 600;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .header-nav a:hover {
            color: var(--text-strong);
            background: rgba(255, 255, 255, 0.04);
        }
        .header-nav a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 16px var(--primary-glow);
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.68rem;
            font-weight: 700;
            background: var(--accent);
            color: #1a1a00;
            padding: 2px 7px;
            border-radius: 20px;
            line-height: 1.2;
            animation: badgePulse 2s ease-in-out infinite;
        }
        @keyframes badgePulse {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.12);
            }
        }

        /* ========== BOTTOM TAB NAV (MOBILE) ========== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 950;
            background: rgba(18, 18, 34, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border);
            height: var(--bottom-tab-height);
            padding: 0 8px;
            justify-content: space-around;
            align-items: center;
        }
        .bottom-tab-nav a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            flex: 1;
            max-width: 90px;
            height: 100%;
            color: var(--text-dim);
            font-size: 0.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            border-radius: var(--radius-sm);
            padding: 4px 6px;
            text-align: center;
            position: relative;
        }
        .bottom-tab-nav a i {
            font-size: 1.25rem;
            transition: transform var(--transition-fast);
        }
        .bottom-tab-nav a.active {
            color: var(--primary-light);
        }
        .bottom-tab-nav a.active i {
            transform: translateY(-2px);
        }
        .bottom-tab-nav a.active::after {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--primary);
            border-radius: 0 0 3px 3px;
        }
        .bottom-tab-nav .tab-badge {
            font-size: 0.6rem;
            background: var(--accent);
            color: #1a1a00;
            padding: 1px 5px;
            border-radius: 10px;
            font-weight: 700;
            position: absolute;
            top: 6px;
            right: calc(50% - 24px);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            padding: 70px 0 60px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
            text-align: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 13, 26, 0.7) 0%, rgba(13, 13, 26, 0.88) 60%, rgba(13, 13, 26, 0.97) 100%);
            z-index: 1;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
            z-index: 0;
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner .banner-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .page-banner .banner-breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .page-banner .banner-breadcrumb a:hover {
            color: var(--primary-light);
        }
        .page-banner .banner-breadcrumb .sep {
            color: var(--text-dim);
        }
        .page-banner .banner-breadcrumb .current {
            color: var(--primary-light);
            font-weight: 600;
        }
        .page-banner h1 {
            margin-bottom: 12px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }
        .page-banner .banner-subtitle {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 550px;
            margin: 0 auto 24px;
        }
        .page-banner .banner-stats {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
        }
        .page-banner .banner-stat {
            text-align: center;
        }
        .page-banner .banner-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1;
        }
        .page-banner .banner-stat .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== FILTER TAGS ========== */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-bottom: 32px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 600;
            background: var(--card-bg);
            color: var(--text-muted);
            border: 1px solid var(--card-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            user-select: none;
        }
        .filter-tag:hover {
            color: var(--text-strong);
            border-color: var(--border-light);
            background: var(--card-bg-hover);
        }
        .filter-tag.active-tag {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 16px var(--primary-glow);
        }
        .filter-tag .tag-count {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.15);
            font-size: 0.7rem;
            padding: 1px 7px;
            border-radius: 20px;
            margin-left: 6px;
            font-weight: 700;
        }
        .filter-tag.active-tag .tag-count {
            background: rgba(255, 255, 255, 0.3);
        }

        /* ========== GUIDE CARDS GRID ========== */
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guide-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--card-border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 70, 85, 0.3);
            background: var(--card-bg-hover);
        }
        .guide-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--secondary-light);
        }
        .guide-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .guide-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .guide-card .card-img-wrap .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            z-index: 2;
            letter-spacing: 0.03em;
        }
        .guide-card .card-img-wrap .card-time-badge {
            position: absolute;
            bottom: 12px;
            right: 12px;
            background: rgba(0, 0, 0, 0.7);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 12px;
            z-index: 2;
            backdrop-filter: blur(4px);
        }
        .guide-card .card-body {
            padding: 18px 16px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-body h3 a {
            color: var(--text-strong);
            transition: color var(--transition-fast);
        }
        .guide-card .card-body h3 a:hover {
            color: var(--primary-light);
        }
        .guide-card .card-body .card-excerpt {
            color: var(--text-muted);
            font-size: 0.86rem;
            line-height: 1.55;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .guide-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--text-dim);
            padding-top: 10px;
            border-top: 1px solid var(--border);
        }
        .guide-card .card-body .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .guide-card .card-body .card-meta i {
            font-size: 0.75rem;
        }

        /* ========== RANKING SECTION ========== */
        .ranking-section {
            background: var(--bg-alt);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 14px;
            border-radius: var(--radius);
            transition: all var(--transition-fast);
            border-bottom: 1px solid var(--border);
            cursor: pointer;
        }
        .ranking-item:last-child {
            border-bottom: none;
        }
        .ranking-item:hover {
            background: var(--card-bg-hover);
        }
        .ranking-item .rank-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: var(--radius);
            color: var(--text-muted);
            background: var(--secondary-light);
        }
        .ranking-item:nth-child(1) .rank-num {
            background: linear-gradient(135deg, #ffd700, #ffaa00);
            color: #1a1a00;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
        }
        .ranking-item:nth-child(2) .rank-num {
            background: linear-gradient(135deg, #c0c0c0, #a8a8a8);
            color: #1a1a1a;
        }
        .ranking-item:nth-child(3) .rank-num {
            background: linear-gradient(135deg, #cd7f32, #a0522d);
            color: #fff;
        }
        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-item .rank-info .rank-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-strong);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .ranking-item .rank-info .rank-cat {
            font-size: 0.75rem;
            color: var(--text-dim);
            margin-top: 2px;
        }
        .ranking-item .rank-heat {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--primary-light);
            font-weight: 700;
        }
        .ranking-item .rank-heat .heat-bar {
            width: 60px;
            height: 5px;
            background: var(--border);
            border-radius: 5px;
            overflow: hidden;
        }
        .ranking-item .rank-heat .heat-bar-fill {
            height: 100%;
            background: var(--primary);
            border-radius: 5px;
            transition: width var(--transition-slow);
        }

        /* ========== FEATURED TOPICS ========== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--secondary-light);
            cursor: pointer;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .topic-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .topic-card:hover img {
            transform: scale(1.05);
        }
        .topic-card .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.3) 50%, rgba(0, 0, 0, 0.1) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 24px;
            z-index: 2;
        }
        .topic-card .topic-overlay h3 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 4px;
        }
        .topic-card .topic-overlay .topic-count {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary), var(--bg-alt));
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            text-align: center;
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h2 {
            position: relative;
            z-index: 1;
            margin-bottom: 8px;
        }
        .cta-section p {
            position: relative;
            z-index: 1;
            color: var(--text-muted);
            max-width: 480px;
            margin: 0 auto 24px;
            font-size: 0.98rem;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            text-align: center;
            border: 2px solid transparent;
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 20px var(--primary-glow);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: 0 6px 28px rgba(255, 70, 85, 0.5);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-strong);
            border-color: var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary-light);
            background: rgba(255, 70, 85, 0.06);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.82rem;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--card-border);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item summary {
            padding: 18px 20px;
            font-weight: 700;
            font-size: 0.98rem;
            cursor: pointer;
            color: var(--text-strong);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: color var(--transition-fast);
        }
        .faq-item summary:hover {
            color: var(--primary-light);
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.7rem;
            color: var(--text-dim);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary-light);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.65;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border);
            padding: 36px 0;
            text-align: center;
            margin-top: auto;
        }
        .site-footer .footer-brand {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-strong);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-bottom: 14px;
        }
        .site-footer .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            font-weight: 500;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: var(--primary-light);
        }
        .site-footer .footer-copy {
            color: var(--text-dim);
            font-size: 0.78rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .guides-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .topics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .ranking-section {
                padding: 28px 20px;
            }
            .page-banner {
                padding: 50px 0 44px;
                background-attachment: scroll;
            }
            .section {
                padding: 48px 0;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 56px;
                --section-gap: 40px;
                --section-gap-sm: 28px;
            }
            .header-nav {
                display: none;
            }
            .bottom-tab-nav {
                display: flex;
            }
            body {
                padding-bottom: calc(var(--bottom-tab-height) + 16px);
            }
            .site-footer {
                margin-bottom: var(--bottom-tab-height);
                padding: 28px 0 20px;
            }
            .guides-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .page-banner {
                padding: 40px 0 32px;
                background-attachment: scroll;
            }
            .page-banner .banner-stats {
                gap: 18px;
            }
            .page-banner .banner-stat .stat-num {
                font-size: 1.3rem;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .ranking-section {
                padding: 20px 14px;
            }
            .ranking-item {
                padding: 12px 10px;
                gap: 10px;
            }
            .ranking-item .rank-num {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .ranking-item .rank-heat .heat-bar {
                width: 40px;
            }
            .cta-section {
                padding: 32px 18px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .faq-item summary {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.83rem;
            }
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .guide-card .card-body {
                padding: 14px 12px 16px;
            }
            .guide-card .card-body h3 {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.9rem;
            }
            .page-banner .banner-stats {
                gap: 12px;
            }
            .filter-tags {
                gap: 5px;
            }
            .filter-tag {
                padding: 5px 10px;
                font-size: 0.72rem;
            }
            .ranking-item .rank-heat .heat-bar {
                width: 30px;
            }
            .ranking-item .rank-info .rank-title {
                font-size: 0.82rem;
            }
            .topic-card .topic-overlay {
                padding: 14px;
            }
            .topic-card .topic-overlay h3 {
                font-size: 1rem;
            }
        }