/* roulang page: index */
body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background-color: #f4f6fb;
            color: #1a1a2e;
            -webkit-font-smoothing: antialiased;
        }
        /* 卡片化导航面板 */
        .nav-panel {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            border-radius: 20px;
            box-shadow: 0 2px 24px rgba(0,0,0,0.06);
            border: 1px solid rgba(0,0,0,0.04);
        }
        .nav-item-card {
            transition: all 0.2s ease;
            border-radius: 14px;
            padding: 0.5rem 1.25rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: #374151;
            background: transparent;
        }
        .nav-item-card:hover {
            background: #fff0f0;
            color: #e60e0e;
        }
        .nav-item-card.active {
            background: #ff2d2d;
            color: white;
            box-shadow: 0 6px 16px rgba(255,45,45,0.3);
        }
        .btn-hot {
            background: linear-gradient(135deg, #ff2d2d 0%, #e60e0e 100%);
            box-shadow: 0 8px 22px rgba(255,45,45,0.35);
            transition: all 0.25s;
        }
        .btn-hot:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255,45,45,0.45);
        }
        /* 浮动操作条 */
        .floating-action {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 50;
            background: #1a1a2e;
            border-radius: 40px;
            padding: 0.5rem 1.8rem;
            box-shadow: 0 12px 28px rgba(0,0,0,0.25);
            display: flex;
            align-items: center;
            gap: 12px;
            color: white;
        }
        .floating-action i {
            font-size: 1.2rem;
            color: #ff5c5c;
        }
        /* 瀑布流卡片微调 */
        .feed-card {
            transition: transform 0.2s, box-shadow 0.25s;
            border-radius: 20px;
            overflow: hidden;
            background: white;
            box-shadow: 0 4px 16px rgba(0,0,0,0.04);
        }
        .feed-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px rgba(0,0,0,0.08);
        }
        .tag-hot {
            background: #fff1f1;
            color: #c20808;
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: 20px;
            padding: 0.2rem 0.8rem;
            display: inline-flex;
            align-items: center;
        }
        /* 移动端导航 */
        @media (max-width: 768px) {
            .desktop-nav {
                display: none !important;
            }
            .mobile-menu-btn {
                display: block !important;
            }
            #mobileMenu {
                transition: max-height 0.4s ease;
                overflow: hidden;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu-btn {
                display: none !important;
            }
        }

/* roulang page: article */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-400: #fb923c;
            --dark: #1a1a2e;
            --dark-card: #16213e;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --bg-page: #f8fafc;
            --bg-card: #ffffff;
            --border-light: #e2e8f0;
            --border-soft: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-card: 0 2px 16px rgba(0,0,0,0.06), 0 8px 32px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius-sm: 0.75rem;
            --radius-md: 1rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.5rem;
            --radius-2xl: 2rem;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            background: var(--bg-page);
            color: var(--text-primary);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

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

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

        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--brand-500);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 导航面板 */
        .nav-panel {
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-soft);
        }

        .nav-item-card {
            display: inline-flex;
            align-items: center;
            padding: 0.55rem 1.1rem;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            background: transparent;
            white-space: nowrap;
            position: relative;
        }

        .nav-item-card:hover {
            background: #fef2e7;
            color: var(--brand-600);
            transform: translateY(-1px);
        }

        .nav-item-card.active {
            background: linear-gradient(135deg, #f97316, #ea580c);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(249,115,22,0.35);
        }

        .nav-item-card.active:hover {
            background: linear-gradient(135deg, #fb923c, #f97316);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(249,115,22,0.45);
        }

        .btn-hot {
            background: linear-gradient(135deg, #f97316, #ea580c);
            box-shadow: 0 4px 16px rgba(249,115,22,0.35);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .btn-hot::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .btn-hot:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(249,115,22,0.5);
        }

        .btn-hot:hover::after {
            opacity: 1;
        }

        .btn-hot:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249,115,22,0.3);
        }

        /* 面包屑 */
        .breadcrumb-link {
            color: var(--text-muted);
            transition: color 0.2s;
            font-size: 0.875rem;
        }

        .breadcrumb-link:hover {
            color: var(--brand-500);
        }

        /* 文章封面 */
        .article-cover-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .article-cover-wrap img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .article-cover-wrap:hover img {
            transform: scale(1.02);
        }

        /* 文章元信息标签 */
        .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 500;
            background: #fef2e7;
            color: var(--brand-600);
        }

        .meta-tag.hot {
            background: #fef2e7;
            color: #ea580c;
            animation: pulse-tag 2s infinite;
        }

        @keyframes pulse-tag {
            0%, 100% { box-shadow: 0 0 0 0 rgba(249,115,22,0.35); }
            50% { box-shadow: 0 0 0 8px rgba(249,115,22,0); }
        }

        /* 正文内容区 */
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: #334155;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1e293b;
            margin: 2rem 0 1rem;
            padding-left: 1rem;
            border-left: 4px solid var(--brand-500);
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: #1e293b;
            margin: 1.5rem 0 0.75rem;
        }

        .article-body p {
            margin: 0.85rem 0;
        }

        .article-body ul, .article-body ol {
            margin: 1rem 0;
            padding-left: 1.5rem;
        }

        .article-body li {
            margin: 0.4rem 0;
        }

        .article-body img {
            border-radius: var(--radius-lg);
            margin: 1.5rem auto;
            box-shadow: var(--shadow-md);
        }

        .article-body blockquote {
            border-left: 4px solid var(--brand-400);
            background: #fff7ed;
            margin: 1.5rem 0;
            padding: 1rem 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: #9a3412;
            font-style: italic;
        }

        /* 相关卡片 */
        .related-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            display: block;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: #fed7aa;
        }

        .related-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .related-card:hover .related-card-img img {
            transform: scale(1.06);
        }

        /* CTA区块 */
        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
            border-radius: var(--radius-2xl);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(249,115,22,0.25), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(251,146,60,0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.9rem 2.2rem;
            border-radius: var(--radius-xl);
            font-weight: 700;
            font-size: 1.05rem;
            background: linear-gradient(135deg, #f97316, #ea580c);
            color: #fff;
            box-shadow: 0 6px 24px rgba(249,115,22,0.45);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            z-index: 1;
            border: none;
            cursor: pointer;
        }

        .btn-cta-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(249,115,22,0.6);
        }

        .btn-cta-lg:active {
            transform: translateY(0);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid rgba(255,255,255,0.5);
            color: #fff;
            background: transparent;
            transition: all 0.3s;
            position: relative;
            z-index: 1;
            cursor: pointer;
        }

        .btn-outline-light:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
        }

        /* 分享按钮 */
        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 50%;
            background: #f1f5f9;
            color: #64748b;
            transition: all 0.25s;
            cursor: pointer;
            font-size: 1rem;
        }

        .share-btn:hover {
            background: #f97316;
            color: #fff;
            transform: scale(1.1);
        }

        /* 移动端菜单 */
        #mobileMenu {
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            max-height: 0;
        }

        #mobileMenu.open {
            max-height: 300px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none !important;
            }

            .article-body {
                font-size: 1rem;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }
        }

        @media (min-width: 1025px) {
            .mobile-menu-btn {
                display: none !important;
            }
        }

        @media (max-width: 768px) {
            .nav-panel {
                padding: 0.6rem 1rem !important;
                border-radius: var(--radius-lg);
            }

            .article-cover-wrap {
                border-radius: var(--radius-lg);
                margin-left: -1rem;
                margin-right: -1rem;
                border-radius: 0;
            }

            .article-body {
                font-size: 0.95rem;
                line-height: 1.8;
            }

            .article-body h2 {
                font-size: 1.2rem;
            }

            .cta-section {
                border-radius: var(--radius-xl);
                padding: 2rem 1.5rem !important;
            }

            .btn-cta-lg {
                padding: 0.75rem 1.6rem;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
            }

            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }

            .share-btn {
                width: 2.2rem;
                height: 2.2rem;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            header {
                padding: 0.5rem !important;
            }

            .nav-panel {
                padding: 0.5rem 0.8rem !important;
            }

            .nav-panel .text-xl {
                font-size: 1rem !important;
            }

            .nav-panel .w-9 {
                width: 2rem !important;
                height: 2rem !important;
                font-size: 0.7rem !important;
            }

            .article-body {
                font-size: 0.9rem;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 1.1rem;
                margin: 1.5rem 0 0.75rem;
            }

            .meta-tag {
                font-size: 0.7rem;
                padding: 0.25rem 0.6rem;
            }
        }

        /* 内容未找到状态 */
        .not-found-card {
            text-align: center;
            padding: 4rem 2rem;
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-soft);
        }

        .not-found-icon {
            font-size: 4rem;
            color: #f97316;
            margin-bottom: 1.5rem;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-12px); }
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 6px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }

        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 3px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }

        /* 标签列表 */
        .tag-pill {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            border-radius: 9999px;
            font-size: 0.78rem;
            font-weight: 500;
            background: #f1f5f9;
            color: #475569;
            transition: all 0.2s;
            cursor: pointer;
        }

        .tag-pill:hover {
            background: #fef2e7;
            color: #ea580c;
        }

/* roulang page: category1 */
:root {
            --brand-50: #eff6ff;
            --brand-100: #dbeafe;
            --brand-200: #bfdbfe;
            --brand-300: #93c5fd;
            --brand-400: #60a5fa;
            --brand-500: #3b82f6;
            --brand-600: #2563eb;
            --brand-700: #1d4ed8;
            --brand-800: #1e40af;
            --brand-900: #1e3a8a;
            --accent-400: #f97316;
            --accent-500: #f97316;
            --accent-600: #ea580c;
            --hot-400: #ef4444;
            --hot-500: #dc2626;
            --hot-600: #b91c1c;
            --warm-400: #fbbf24;
            --warm-500: #f59e0b;
            --dark: #0f172a;
            --dark-soft: #1e293b;
            --gray-50: #f8fafc;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-300: #cbd5e1;
            --gray-400: #94a3b8;
            --gray-500: #64748b;
            --gray-600: #475569;
            --gray-700: #334155;
            --gray-800: #1e293b;
            --gray-900: #0f172a;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-page: #f8fafc;
            --bg-card: #ffffff;
            --border-light: #e2e8f0;
            --border-soft: #f1f5f9;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-2xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.07);
            --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.12);
            --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.25);
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background-color: var(--bg-page);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-500);
            outline-offset: 2px;
            border-radius: var(--radius-xs);
        }

        /* ========== 导航面板系统 ========== */
        .nav-panel {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .nav-panel:hover {
            box-shadow: var(--shadow-md);
        }

        .nav-item-card {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.55rem 1.2rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            background: transparent;
            letter-spacing: 0.01em;
        }

        .nav-item-card:hover {
            color: var(--brand-600);
            background: var(--brand-50);
            transform: translateY(-1px);
        }

        .nav-item-card.active {
            color: #ffffff;
            background: var(--brand-600);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
            font-weight: 700;
        }

        .nav-item-card.active:hover {
            color: #ffffff;
            background: var(--brand-700);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
        }

        .btn-hot {
            background: linear-gradient(135deg, var(--hot-500), var(--accent-500));
            box-shadow: 0 4px 16px rgba(239, 68, 68, 0.35);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-hot:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(239, 68, 68, 0.5);
            background: linear-gradient(135deg, var(--hot-600), var(--accent-600));
        }

        .btn-hot:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
        }

        .mobile-menu-btn {
            transition: all var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: var(--brand-50);
            color: var(--brand-600);
        }

        #mobileMenu {
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
            border: 1px solid var(--border-light);
        }

        #mobileMenu.open {
            max-height: 300px !important;
            padding: 1rem !important;
        }

        /* ========== 板块通用 ========== */
        .section-py {
            padding: 4rem 0;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-top: 0.5rem;
            line-height: 1.6;
        }

        .section-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.75rem;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .badge-hot {
            background: linear-gradient(135deg, #fef2f2, #fee2e2);
            color: var(--hot-600);
            animation: pulse-hot 2s ease-in-out infinite;
        }

        .badge-new {
            background: linear-gradient(135deg, #eff6ff, #dbeafe);
            color: var(--brand-700);
        }

        .badge-limited {
            background: linear-gradient(135deg, #fffbeb, #fef3c7);
            color: #b45309;
        }

        .badge-event {
            background: linear-gradient(135deg, #f0fdf4, #dcfce7);
            color: #15803d;
        }

        @keyframes pulse-hot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.35);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes shimmer {
            0% {
                background-position: -200% 0;
            }
            100% {
                background-position: 200% 0;
            }
        }

        .animate-fade-in {
            animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
        }

        .animate-fade-in-delay-1 {
            animation: fadeInUp 0.6s 0.1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
            opacity: 0;
        }

        .animate-fade-in-delay-2 {
            animation: fadeInUp 0.6s 0.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
            opacity: 0;
        }

        .animate-fade-in-delay-3 {
            animation: fadeInUp 0.6s 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
            opacity: 0;
        }

        /* ========== 分类Banner ========== */
        .category-banner {
            position: relative;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            box-shadow: var(--shadow-lg);
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(15, 23, 42, 0.82) 0%,
                    rgba(15, 23, 42, 0.55) 40%,
                    rgba(30, 41, 59, 0.35) 70%,
                    rgba(15, 23, 42, 0.65) 100%);
            z-index: 1;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top,
                    rgba(15, 23, 42, 0.7) 0%,
                    transparent 100%);
            z-index: 2;
        }

        .category-banner-content {
            position: relative;
            z-index: 3;
            padding: 3rem 2.5rem;
            width: 100%;
        }

        /* ========== 热度排行 ========== */
        .rank-list-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem 1.2rem;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .rank-list-item:hover {
            border-color: var(--brand-200);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }

        .rank-number {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .rank-number.top-1 {
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
        }

        .rank-number.top-2 {
            background: linear-gradient(135deg, #cbd5e1, #94a3b8);
            color: #fff;
            box-shadow: 0 4px 12px rgba(148, 163, 184, 0.35);
        }

        .rank-number.top-3 {
            background: linear-gradient(135deg, #d4a574, #b87333);
            color: #fff;
            box-shadow: 0 4px 12px rgba(184, 115, 51, 0.35);
        }

        .rank-number.normal {
            background: var(--gray-100);
            color: var(--text-secondary);
        }

        .rank-heat {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--hot-500);
            white-space: nowrap;
        }

        /* ========== 瀑布流卡片 ========== */
        .masonry-grid {
            columns: 3;
            column-gap: 1.5rem;
        }

        .masonry-card {
            break-inside: avoid;
            margin-bottom: 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-base);
            cursor: pointer;
            display: inline-block;
            width: 100%;
        }

        .masonry-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--brand-200);
        }

        .masonry-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 3 / 4;
        }

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

        .masonry-card:hover .masonry-card-img-wrap img {
            transform: scale(1.06);
        }

        .masonry-card-img-wrap .card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top,
                    rgba(15, 23, 42, 0.7) 0%,
                    rgba(15, 23, 42, 0.15) 50%,
                    transparent 100%);
            z-index: 1;
        }

        .masonry-card-tags {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }

        .masonry-card-heat {
            position: absolute;
            bottom: 0.75rem;
            right: 0.75rem;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.3rem 0.65rem;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        .masonry-card-body {
            padding: 1.1rem;
        }

        .masonry-card-body h3 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--dark);
            line-height: 1.4;
            margin-bottom: 0.4rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .masonry-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .masonry-card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-top: 0.75rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ========== 精选活动大卡 ========== */
        .featured-event-card {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .featured-event-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .featured-event-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top,
                    rgba(15, 23, 42, 0.85) 0%,
                    rgba(15, 23, 42, 0.3) 55%,
                    transparent 100%);
            z-index: 1;
        }

        .featured-event-content {
            position: relative;
            z-index: 2;
            padding: 1.8rem;
            width: 100%;
            color: #fff;
        }

        .featured-event-content h3 {
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 0.4rem;
            letter-spacing: -0.01em;
        }

        .featured-event-content p {
            font-size: 0.9rem;
            opacity: 0.85;
            line-height: 1.5;
        }

        /* ========== 浮动操作条 ========== */
        .floating-action-bar {
            position: fixed;
            bottom: 1.5rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 50;
            background: var(--dark);
            border-radius: 30px;
            padding: 0.6rem 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            box-shadow: 0 8px 30px rgba(15, 23, 42, 0.45);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }

        .floating-action-bar .fab-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.45rem 1rem;
            border-radius: 24px;
            font-size: 0.82rem;
            font-weight: 700;
            color: #fff;
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .floating-action-bar .fab-btn-hot {
            background: linear-gradient(135deg, var(--hot-500), var(--accent-500));
            box-shadow: 0 3px 12px rgba(239, 68, 68, 0.4);
        }

        .floating-action-bar .fab-btn-hot:hover {
            box-shadow: 0 6px 18px rgba(239, 68, 68, 0.55);
            transform: translateY(-1px);
        }

        .floating-action-bar .fab-btn-ghost {
            background: rgba(255, 255, 255, 0.1);
        }

        .floating-action-bar .fab-btn-ghost:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        /* ========== CTA板块 ========== */
        .cta-block {
            background: linear-gradient(135deg, var(--dark), var(--dark-soft));
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }

        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }

        .cta-block-content {
            position: relative;
            z-index: 1;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 30px;
            box-shadow: 0 6px 22px rgba(37, 99, 235, 0.45);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(37, 99, 235, 0.55);
            background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
        }

        .btn-cta-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 10px rgba(37, 99, 235, 0.3);
        }

        /* ========== 筛选标签组 ========== */
        .filter-tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            justify-content: center;
        }

        .filter-tag {
            padding: 0.5rem 1.2rem;
            border-radius: 24px;
            font-size: 0.88rem;
            font-weight: 600;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .filter-tag:hover {
            border-color: var(--brand-300);
            color: var(--brand-600);
            background: var(--brand-50);
        }

        .filter-tag.active {
            background: var(--brand-600);
            color: #fff;
            border-color: var(--brand-600);
            box-shadow: 0 3px 12px rgba(37, 99, 235, 0.3);
        }

        /* ========== Footer ========== */
        footer a {
            color: var(--gray-400);
            transition: color var(--transition-fast);
        }
        footer a:hover {
            color: #fff;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .masonry-grid {
                columns: 2;
                column-gap: 1rem;
            }
            .masonry-card {
                margin-bottom: 1rem;
            }
            .category-banner {
                min-height: 280px;
            }
            .category-banner-content {
                padding: 2rem 1.5rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-py {
                padding: 3rem 0;
            }
            .featured-event-card {
                min-height: 220px;
            }
        }

        @media (max-width: 768px) {
            .masonry-grid {
                columns: 1;
                column-gap: 0;
            }
            .masonry-card {
                margin-bottom: 1rem;
            }
            .category-banner {
                min-height: 240px;
                border-radius: var(--radius-lg);
            }
            .category-banner-content {
                padding: 1.5rem 1rem;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .section-py {
                padding: 2.2rem 0;
            }
            .rank-list-item {
                padding: 0.75rem 0.9rem;
                gap: 0.6rem;
            }
            .rank-number {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .cta-block {
                padding: 2rem 1.2rem;
                border-radius: var(--radius-lg);
            }
            .featured-event-card {
                min-height: 200px;
                border-radius: var(--radius-lg);
            }
            .featured-event-content {
                padding: 1.2rem;
            }
            .featured-event-content h3 {
                font-size: 1.1rem;
            }
            .floating-action-bar {
                bottom: 1rem;
                padding: 0.5rem 0.9rem;
                gap: 0.4rem;
                border-radius: 26px;
            }
            .floating-action-bar .fab-btn {
                font-size: 0.75rem;
                padding: 0.35rem 0.75rem;
            }
            .filter-tag {
                font-size: 0.78rem;
                padding: 0.4rem 0.85rem;
            }
            .section-header {
                margin-bottom: 1.5rem;
            }
            .desktop-nav {
                display: none !important;
            }
        }

        @media (max-width: 520px) {
            .category-banner {
                min-height: 200px;
                border-radius: var(--radius-md);
            }
            .category-banner-content {
                padding: 1.2rem 0.9rem;
            }
            .category-banner-content h1 {
                font-size: 1.3rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .masonry-card-img-wrap {
                aspect-ratio: 4 / 5;
            }
            .floating-action-bar {
                bottom: 0.75rem;
                left: 0.75rem;
                right: 0.75rem;
                transform: none;
                border-radius: 22px;
                justify-content: space-around;
                padding: 0.45rem 0.6rem;
            }
            .floating-action-bar .fab-btn {
                font-size: 0.7rem;
                padding: 0.3rem 0.6rem;
                gap: 0.2rem;
            }
            .rank-list-item {
                flex-wrap: wrap;
                gap: 0.4rem;
            }
        }

        @media (min-width: 769px) {
            .floating-action-bar {
                display: none;
            }
        }