/* 莫兰迪灰蓝 变量 */
        :root {
            --primary: #64748b;
            --accent: #94a3b8;
            --bg: #f1f5f9;
            --text: #1e293b;
            --radius-card: 16px;
            --radius-full: 60px;
            --shadow-light: 0 10px 30px -12px rgba(30, 41, 59, 0.12);
            --font-title: 'Noto Serif SC', serif;
            --font-body: 'Noto Sans SC', sans-serif;
        }
        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            line-height: 1.75;
            position: relative;
            overflow-x: hidden;
        }
        /* 噪点纹理 (顶部细微) */
        body::before {
            content: "";
            position: absolute;
            top: 0; left: 0; width: 100%; height: 360px;
            background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.02'/%3E%3C/svg%3E");
            pointer-events: none;
            opacity: 0.5;
            z-index: 1;
        }
        h1, h2, h3, .display-1, .display-2, .display-3, .display-4 {
            font-family: var(--font-title);
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        /* 侧栏固定 */
        .sidebar-layout {
            display: flex;
            gap: 2rem;
            max-width: 1420px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .sidebar-left {
            flex: 0 0 260px;
            position: sticky;
            top: 90px;
            height: calc(100vh - 110px);
            overflow-y: auto;
            border-radius: 24px;
            background: rgba(255,255,255,0.6);
            backdrop-filter: blur(8px);
            padding: 1.5rem 1rem;
            border: 1px solid rgba(148,163,184,0.3);
            box-shadow: var(--shadow-light);
            z-index: 5;
        }
        .sidebar-left .side-link {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.8rem 1.2rem;
            border-radius: 60px;
            margin-bottom: 0.3rem;
            color: var(--text);
            font-weight: 500;
            transition: all 0.2s;
            border: 1px solid transparent;
        }
        .sidebar-left .side-link i {
            color: var(--primary);
            font-size: 1.2rem;
            width: 24px;
            text-align: center;
        }
        .sidebar-left .side-link:hover, .sidebar-left .side-link.active {
            background: rgba(100,116,139,0.08);
            border-color: var(--accent);
            color: var(--primary);
        }
        .main-content {
            flex: 1;
            min-width: 0;
        }
        /* 导航栏吸顶+透明 */
        .navbar-custom {
            background: rgba(241,245,249,0.75);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(148,163,184,0.2);
            transition: background 0.4s ease, box-shadow 0.3s;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .navbar-custom.scrolled {
            background: rgba(241,245,249,0.92);
            box-shadow: 0 10px 30px -15px rgba(30,41,59,0.2);
        }
        .navbar-brand {
            font-family: var(--font-title);
            font-weight: 900;
            font-size: 1.7rem;
            letter-spacing: 1px;
            color: var(--text) !important;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand i {
            color: var(--primary);
            font-size: 1.8rem;
        }
        .nav-link-custom {
            color: var(--text) !important;
            font-weight: 500;
            padding: 0.5rem 1.2rem !important;
            border-radius: 60px;
            transition: all 0.2s;
            margin: 0 0.2rem;
            font-size: 1rem;
        }
        .nav-link-custom:hover {
            background: rgba(100,116,139,0.12);
            color: var(--primary) !important;
        }
        .btn-gradient {
            background: linear-gradient(145deg, #64748b, #94a3b8);
            border: none;
            color: white;
            border-radius: 60px;
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            position: relative;
            overflow: hidden;
            transition: transform 0.2s, box-shadow 0.2s;
            box-shadow: 0 6px 16px -6px rgba(100,116,139,0.5);
        }
        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 24px -8px rgba(100,116,139,0.6);
            color: white;
        }
        /* 光泽扫过效果 */
        .btn-gradient::after {
            content: "";
            position: absolute;
            top: 0; left: -80%;
            width: 40%; height: 100%;
            background: linear-gradient(120deg, transparent, rgba(255,255,255,0.5), transparent);
            transform: skewX(-25deg);
            transition: left 0.6s ease;
        }
        .btn-gradient:hover::after {
            left: 120%;
        }
        /* 卡片 */
        .card-capsule {
            background: rgba(255,255,255,0.7);
            border: 1px solid rgba(148,163,184,0.2);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-light);
            backdrop-filter: blur(4px);
            transition: transform 0.2s, box-shadow 0.3s;
        }
        .card-capsule:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 30px -12px rgba(30,41,59,0.18);
        }
        /* 时间线 */
        .timeline {
            position: relative;
            padding-left: 2rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 6px; top: 4px; bottom: 4px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2rem; top: 6px;
            width: 14px; height: 14px;
            background: white;
            border: 3px solid var(--primary);
            border-radius: 50%;
        }
        .timeline-item h5 {
            font-weight: 600;
            color: var(--primary);
        }
        /* 标签页自定义 */
        .nav-pills .nav-link {
            border-radius: 60px;
            background: transparent;
            color: var(--text);
            padding: 0.6rem 1.8rem;
            margin-right: 0.5rem;
            font-weight: 500;
            border: 1px solid transparent;
        }
        .nav-pills .nav-link.active {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        /* 瀑布流 */
        .masonry-grid {
            column-count: 3;
            column-gap: 1.2rem;
        }
        .masonry-grid .m-item {
            break-inside: avoid;
            margin-bottom: 1.2rem;
        }
        @media (max-width: 992px) {
            .sidebar-left { display: none; }
            .masonry-grid { column-count: 2; }
        }
        @media (max-width: 600px) {
            .masonry-grid { column-count: 1; }
            .navbar-brand { font-size: 1.3rem; }
        }
        .footer-links a {
            color: var(--text);
            text-decoration: none;
            margin: 0 1rem 0 0;
            font-weight: 500;
        }
        .footer-links a:hover { color: var(--primary); }
        .back-to-top {
            position: fixed;
            bottom: 30px; right: 30px;
            width: 48px; height: 48px;
            border-radius: 60px;
            background: var(--primary);
            color: white;
            border: none;
            font-size: 1.4rem;
            display: flex; align-items: center; justify-content: center;
            box-shadow: 0 8px 20px rgba(100,116,139,0.4);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease, transform 0.2s;
            z-index: 200;
        }
        .back-to-top.show {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }
        .hero-number {
            font-family: var(--font-title);
            font-size: 4.2rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            position: relative;
            display: inline-block;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: -8px; left: 0;
            width: 60px; height: 4px;
            background: var(--primary);
            border-radius: 4px;
        }

/* --- 子页面追加 --- */
/* 确保页面背景与全局一致 */
        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
        }
/* 关于页特有的小卡片样式复用 card-capsule 但做一点间距优化 */
        .about-extra-card {
            transition: transform .2s ease;
        }
.about-extra-card:hover {
            transform: translateY(-4px);
        }
/* 让引用块更有质感 */
        .about-quote {
            border-left: 4px solid var(--primary);
            background-color: rgba(100, 116, 139, 0.05);
            padding: 1rem 1.5rem;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
        }
/* 首字下沉效果（仅用于开头段落） */
        .first-letter::first-letter {
            font-size: 3.2em;
            float: left;
            line-height: 1;
            margin-right: 0.1em;
            color: var(--primary);
            font-weight: 700;
            font-family: var(--font-title);
        }
/* 小标题统一样式 */
        .section-title-about {
            font-family: var(--font-title);
            color: var(--text);
            font-weight: 700;
            letter-spacing: .5px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: .4rem;
            display: inline-block;
        }
/* 导航高亮当前页 */
        .nav-link-custom.active {
            font-weight: 700;
            color: var(--primary) !important;
            border-bottom: 2px solid var(--primary);
        }
/* 调整列表间距 */
        .about-list li {
            margin-bottom: .6rem;
        }
/* 页脚样式与全局一致 */
        .footer-link {
            color: var(--text);
            opacity: .8;
            text-decoration: none;
        }
.footer-link:hover {
            opacity: 1;
            text-decoration: underline;
        }
.footer-bottom {
            border-top: 1px solid rgba(30, 41, 59, .1);
        }

/* --- 子页面追加 --- */
/* 保证隐私条款页内特殊元素与全局融合 */
        .privacy-article { background: var(--bg); }
.privacy-article .card-capsule { margin-bottom: 2rem; }
.privacy-article h2 { font-family: var(--font-title); }
.privacy-article p, .privacy-article li { font-family: var(--font-body); color: var(--text); }
.privacy-article a { color: var(--primary); }
.privacy-article a:hover { text-decoration: underline; }
.badge-soft { background: rgba(100,116,139,.15); color: var(--primary); padding: .2rem .8rem; border-radius: 30px; font-weight: 500; font-size: .85rem; }
.privacy-box { background: rgba(255,255,255,.6); border-radius: var(--radius-card); padding: 2rem; box-shadow: var(--shadow-light); }
.privacy-box strong { color: var(--text); }
.privacy-divider { border-top: 1px solid rgba(100,116,139,.2); margin: 2.5rem 0; }
.list-bullet { list-style: none; padding-left: 0; }
.list-bullet li { padding-left: 1.8rem; position: relative; margin-bottom: .5rem; }
.list-bullet li::before { content: "\f058"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; color: var(--primary); }

/* --- 子页面追加 --- */
/* 覆盖bootstrap组件使其贴合本站深色/浅色风格（此处站点为浅色背景，但按钮等组件需要保持一致性） */
        .card, .card-body, .card-title, .card-text, .card-header, .card-footer {
            background: var(--bg);
            color: var(--text);
            border-color: var(--accent);
        }
.form-control, .form-select, .form-label, .input-group-text {
            background: #ffffff;
            color: var(--text);
            border-color: var(--accent);
        }
.list-group-item, .accordion-item, .accordion-button, .accordion-body, .modal-content, .modal-header, .modal-body, .dropdown-menu, .dropdown-item {
            background: var(--bg);
            color: var(--text);
            border-color: var(--accent);
        }
/* 小标题用衬线体，更贴近品牌风格 */
        .section-title {
            font-family: var(--font-title);
        }
.disclaimer-content h2 {
            font-family: var(--font-title);
            color: var(--primary);
            font-weight: 600;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            font-size: 1.75rem;
            border-left: 4px solid var(--primary);
            padding-left: 1rem;
        }
.disclaimer-content h3 {
            font-family: var(--font-title);
            color: var(--text);
            font-weight: 600;
            margin-top: 2rem;
            font-size: 1.4rem;
        }
.disclaimer-content p {
            line-height: 1.8;
            color: var(--text);
            margin-bottom: 1.2rem;
        }
.disclaimer-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
.highlight-box {
            background: rgba(100, 116, 139, 0.08);
            border-left: 4px solid var(--primary);
            padding: 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 2rem 0;
        }
.back-to-top:hover {
            background: var(--accent);
            color: #fff;
        }
/* 导航栏微调确保当前页高亮 */
        .navbar-custom .nav-link-custom.active {
            font-weight: 700;
            color: var(--primary) !important;
            border-bottom: 2px solid var(--primary);
        }

/* --- 子页面追加 --- */
.rank-hero { background: linear-gradient(135deg, var(--bg) 0%, #e8edf5 100%); border-radius: var(--radius-card); padding: 3rem 2rem; margin-bottom: 2.5rem; position: relative; overflow: hidden; }
.rank-hero::before { content: ''; position: absolute; top: -50%; right: -30%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(100,116,139,0.08) 0%, transparent 70%); }
.rank-badge { display: inline-block; background: var(--primary); color: #fff; font-size: 0.75rem; font-weight: 600; padding: 0.3rem 0.9rem; border-radius: var(--radius-full); letter-spacing: 0.5px; margin-bottom: 1rem; }
.rank-item { background: #fff; border-radius: var(--radius-card); padding: 1.5rem; margin-bottom: 1.25rem; box-shadow: var(--shadow-light); transition: transform 0.25s ease, box-shadow 0.25s ease; display: flex; align-items: center; gap: 1.5rem; border-left: 4px solid transparent; }
.rank-item:hover { transform: translateY(-3px); box-shadow: 0 16px 40px -12px rgba(30,41,59,0.18); }
.rank-item.top-1 { border-left-color: #f59e0b; }
.rank-item.top-2 { border-left-color: #94a3b8; }
.rank-item.top-3 { border-left-color: #b45309; }
.rank-number { font-family: var(--font-title); font-size: 2.2rem; font-weight: 900; color: var(--primary); min-width: 65px; text-align: center; line-height: 1; }
.rank-item.top-1 .rank-number { color: #f59e0b; }
.rank-item.top-2 .rank-number { color: #64748b; }
.rank-item.top-3 .rank-number { color: #b45309; }
.rank-info { flex: 1; }
.rank-info h3 { font-family: var(--font-title); font-size: 1.3rem; font-weight: 700; color: var(--text); margin-bottom: 0.4rem; }
.rank-meta { display: flex; flex-wrap: wrap; gap: 1rem; font-size: 0.85rem; color: #64748b; margin-bottom: 0.5rem; }
.rank-meta span i { margin-right: 0.3rem; color: var(--accent); }
.rank-desc { color: #475569; font-size: 0.92rem; line-height: 1.6; }
.rank-tag { display: inline-block; background: var(--bg); color: var(--primary); font-size: 0.75rem; padding: 0.2rem 0.7rem; border-radius: var(--radius-full); margin-right: 0.5rem; margin-top: 0.3rem; font-weight: 500; }
.rank-progress { height: 6px; background: var(--bg); border-radius: 10px; margin-top: 0.8rem; overflow: hidden; }
.rank-progress-bar { height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 10px; }
.rank-section-title { font-family: var(--font-title); font-size: 1.8rem; font-weight: 800; color: var(--text); margin-bottom: 1.8rem; position: relative; padding-bottom: 0.8rem; }
.rank-section-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 60px; height: 4px; background: var(--primary); border-radius: 4px; }
.rank-section-title i { color: var(--primary); margin-right: 0.5rem; }
.newcomer-card { background: #fff; border-radius: var(--radius-card); padding: 1.5rem; box-shadow: var(--shadow-light); height: 100%; transition: transform 0.25s ease; }
.newcomer-card:hover { transform: translateY(-4px); }
.newcomer-card .badge-new { background: #ef4444; color: #fff; font-size: 0.7rem; padding: 0.25rem 0.7rem; border-radius: var(--radius-full); font-weight: 600; display: inline-block; margin-bottom: 0.8rem; }
.newcomer-card h4 { font-family: var(--font-title); font-weight: 700; font-size: 1.1rem; margin-bottom: 0.4rem; }
.newcomer-card p { color: #64748b; font-size: 0.88rem; line-height: 1.6; }
.genre-filter { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 2rem; }
.genre-filter .btn-filter { background: #fff; border: 1px solid #e2e8f0; color: var(--text); padding: 0.45rem 1.2rem; border-radius: var(--radius-full); font-size: 0.85rem; font-weight: 500; transition: all 0.2s ease; cursor: pointer; }
.genre-filter .btn-filter:hover, .genre-filter .btn-filter.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.rank-item { flex-direction: column; align-items: flex-start; gap: 0.8rem; }
.rank-number { font-size: 1.8rem; min-width: auto; }
.rank-hero { padding: 2rem 1.2rem; }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }
.breadcrumb { color:#1e293b !important; }