:root {
      --primary: #64748b;
      --accent: #94a3b8;
      --bg: #f1f5f9;
      --text: #1e293b;
      --radius-lg: 24px;
      --radius-md: 18px;
      --shadow: 0 12px 30px -8px rgba(100, 116, 139, 0.25);
      --dot-bg: radial-gradient(var(--accent) 1px, transparent 1px);
    }
    * { font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
    body {
      background-color: var(--bg);
      color: var(--text);
      letter-spacing: -0.01em;
    }
    /* 点阵背景 + 细网格 */
    .dot-matrix-bg {
      background-image: var(--dot-bg);
      background-size: 24px 24px;
    }
    .grid-lines {
      background-image: linear-gradient(to right, rgba(100,116,139,0.06) 1px, transparent 1px),
                        linear-gradient(to bottom, rgba(100,116,139,0.06) 1px, transparent 1px);
      background-size: 40px 40px;
    }

    /* 大圆角柔和卡片 */
    .soft-card {
      background: rgba(255,255,255,0.7);
      backdrop-filter: blur(4px);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      border: 1px solid rgba(255,255,255,0.6);
    }
    .section-title {
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text);
    }
    /* 导航 */
    .navbar-banana {
      background: rgba(241,245,249,0.8);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(100,116,139,0.2);
      border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }
    .navbar-banana .navbar-brand {
      font-weight: 900;
      font-size: 1.4rem;
      color: var(--text);
    }
    .navbar-banana .nav-link {
      font-weight: 500;
      color: var(--text);
      margin: 0 0.5rem;
      border-radius: 50px;
      padding: 0.4rem 1rem !important;
      transition: all 0.2s;
    }
    .navbar-banana .nav-link:hover {
      background: rgba(100,116,139,0.12);
      color: var(--primary);
    }

    /* Hero 大数字 */
    .hero-stat {
      font-size: 4rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    /* 按钮流动光泽 */
    .btn-flow {
      position: relative;
      overflow: hidden;
      border: none;
      background: var(--primary);
      color: white;
      border-radius: 60px;
      padding: 0.7rem 1.8rem;
      font-weight: 600;
      transition: transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 4px 14px rgba(100,116,139,0.3);
    }
    .btn-flow::after {
      content: '';
      position: absolute;
      top: 0; left: -80%;
      width: 50%; height: 100%;
      background: linear-gradient(120deg, transparent, rgba(255,255,255,0.45), transparent);
      transform: skewX(-20deg);
      transition: left 0.5s;
    }
    .btn-flow:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(100,116,139,0.35);
    }
    .btn-flow:hover::after { left: 130%; }

    /* 表格圆角 */
    .compare-table {
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: white;
      box-shadow: var(--shadow);
    }
    .compare-table th, .compare-table td {
      padding: 1rem 1.2rem;
      background: white;
    }

    /* 标签页 (特色) */
    .feature-tabs .nav-pills .nav-link {
      background: rgba(148,163,184,0.15);
      color: var(--text);
      border-radius: 60px;
      padding: 0.5rem 1.5rem;
      margin: 0.25rem;
      font-weight: 500;
      border: 1px solid transparent;
    }
    .feature-tabs .nav-pills .nav-link.active {
      background: var(--primary);
      color: white;
      border-color: var(--primary);
    }
    .tab-pane {
      background: rgba(255,255,255,0.5);
      border-radius: var(--radius-md);
      padding: 1.8rem;
      margin-top: 1rem;
    }

    /* 时间线 */
    .timeline {
      position: relative;
      padding-left: 2rem;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 8px; top: 0; bottom: 0;
      width: 2px;
      background: var(--accent);
      opacity: 0.4;
    }
    .timeline-item {
      position: relative;
      margin-bottom: 2rem;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: -1.9rem; top: 0.4rem;
      width: 14px; height: 14px;
      background: var(--primary);
      border-radius: 50%;
      border: 2px solid white;
      box-shadow: 0 0 0 2px var(--accent);
    }

    /* 滚动显现 */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s cubic-bezier(0.2,0.8,0.2,1), transform 0.6s cubic-bezier(0.2,0.8,0.2,1);
    }
    .reveal.show {
      opacity: 1;
      transform: translateY(0);
    }
    .delay-1 { transition-delay: 0.1s; }
    .delay-2 { transition-delay: 0.2s; }
    .delay-3 { transition-delay: 0.3s; }
    .delay-4 { transition-delay: 0.4s; }

    /* 小字高密度 */
    .dense-text {
      font-size: 0.95rem;
      line-height: 1.6;
    }
    footer {
      background: rgba(255,255,255,0.5);
      border-radius: var(--radius-lg) var(--radius-lg) 0 0;
      backdrop-filter: blur(8px);
    }
    .footer-links a {
      color: var(--text);
      margin: 0 0.8rem;
      font-weight: 500;
      text-decoration: none;
      opacity: 0.7;
    }
    .footer-links a:hover { opacity: 1; color: var(--primary); }

/* --- 子页面追加 --- */
.about-hero {
            padding: 80px 0 60px;
            position: relative;
        }
.about-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
.about-hero .lead {
            font-size: 1.15rem;
            color: var(--primary);
            max-width: 720px;
            margin: 0 auto;
        }
.about-section {
            padding: 60px 0;
        }
.about-section-alt {
            background: var(--dot-bg);
            background-size: 24px 24px;
            padding: 60px 0;
        }
.about-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow);
            height: 100%;
            border: 1px solid rgba(100, 116, 139, 0.1);
        }
.about-card i {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
.about-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
.about-card p {
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.7;
        }
.timeline-about {
            position: relative;
            padding-left: 30px;
            border-left: 3px solid var(--primary);
        }
.timeline-about-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 20px;
        }
.timeline-about-item::before {
            content: '';
            position: absolute;
            left: -38px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }
.timeline-about-item .date {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
            margin-bottom: 4px;
        }
.timeline-about-item p {
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0;
        }
.value-list {
            list-style: none;
            padding: 0;
        }
.value-list li {
            padding: 12px 0;
            border-bottom: 1px dashed rgba(100, 116, 139, 0.2);
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
.value-list li:last-child {
            border-bottom: none;
        }
.value-list li i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 1rem;
            width: 20px;
            text-align: center;
        }
.value-list li span {
            flex: 1;
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.6;
        }
.value-list li strong {
            color: var(--text);
            font-weight: 700;
        }
.stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 4px;
        }
.stat-label {
            color: var(--text);
            font-size: 0.9rem;
            opacity: 0.8;
        }
.feature-badge {
            display: inline-block;
            background: rgba(100, 116, 139, 0.1);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
.about-hero h1 {
                font-size: 2rem;
            }
.about-hero {
                padding: 60px 0 40px;
            }
.about-section, .about-section-alt {
                padding: 40px 0;
            }

/* --- 子页面追加 --- */
.disclaimer-section {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }
.disclaimer-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent), transparent);
        }
.disclaimer-section h2 {
            color: var(--primary);
            font-weight: 700;
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
.disclaimer-section h2 i {
            font-size: 1.3rem;
            color: var(--accent);
        }
.disclaimer-section p, .disclaimer-section li {
            color: var(--text);
            line-height: 1.8;
            font-size: 0.95rem;
            opacity: 0.9;
        }
.disclaimer-section ul {
            padding-left: 1.2rem;
            margin-bottom: 1rem;
        }
.disclaimer-section li {
            margin-bottom: 0.5rem;
        }
.notice-box {
            background: rgba(100, 116, 139, 0.08);
            border-left: 4px solid var(--primary);
            padding: 1.2rem 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 1.5rem 0;
        }
.notice-box p {
            margin-bottom: 0.3rem;
            font-weight: 500;
        }
.update-info {
            text-align: center;
            color: var(--text);
            opacity: 0.7;
            font-size: 0.85rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(100, 116, 139, 0.2);
            margin-top: 2rem;
        }
.page-header {
            padding: 3.5rem 0 2.5rem;
            background: linear-gradient(135deg, rgba(100,116,139,0.08), rgba(148,163,184,0.05));
            border-bottom: 1px solid rgba(100,116,139,0.1);
        }
.page-header h1 {
            color: var(--text);
            font-weight: 800;
            font-size: 2.2rem;
            margin-bottom: 0.5rem;
        }
.page-header .subtitle {
            color: var(--primary);
            font-size: 1.1rem;
            font-weight: 500;
        }
.breadcrumb-nav {
            font-size: 0.85rem;
            color: var(--text);
            opacity: 0.7;
            margin-bottom: 1rem;
        }
.breadcrumb-nav a {
            color: var(--primary);
            text-decoration: none;
        }
.breadcrumb-nav a:hover {
            text-decoration: underline;
        }
.disclaimer-section {
                padding: 1.8rem;
            }
.page-header h1 {
                font-size: 1.6rem;
            }
.page-header .subtitle {
                font-size: 0.95rem;
            }

/* --- 子页面追加 --- */
/* 本页专属小样式：排行榜徽章、榜单行 hover、进度条等，自动合并进站点CSS */
    .rank-badge {
      display: inline-flex; align-items: center; justify-content: center;
      min-width: 36px; height: 36px; border-radius: 12px;
      background: var(--primary); color: #fff; font-weight: 800; font-size: 1.05rem;
    }
.rank-badge.top1 { background: #f59e0b; }
.rank-badge.top2 { background: #94a3b8; }
.rank-badge.top3 { background: #b45309; }
.rank-row {
      background: #fff; border-radius: var(--radius-md);
      box-shadow: var(--shadow); padding: 1rem 1.25rem; margin-bottom: .85rem;
      transition: transform .2s ease, box-shadow .2s ease;
      border: 1px solid rgba(100,116,139,.1);
    }
.rank-row:hover { transform: translateY(-3px); box-shadow: 0 16px 36px -8px rgba(100,116,139,.35); }
.rank-cover {
      width: 54px; height: 72px; object-fit: cover; border-radius: 10px;
      background: var(--dot-bg); background-size: 8px 8px;
    }
.rank-meta { font-size: .8rem; color: var(--accent); }
.rank-tag {
      display: inline-block; padding: .15rem .55rem; border-radius: 20px;
      font-size: .72rem; font-weight: 600; margin-left: .35rem;
      background: rgba(100,116,139,.12); color: var(--primary);
    }
.rank-tag.hot { background: rgba(245,158,11,.18); color: #b45309; }
.rank-tag.done { background: rgba(16,185,129,.15); color: #059669; }
.rank-bar {
      height: 5px; border-radius: 10px; background: rgba(100,116,139,.12);
      overflow: hidden; margin-top: .45rem;
    }
.rank-bar span { display: block; height: 100%; border-radius: 10px; background: var(--primary); }
.tab-pane .btn-flow { margin-top: 1rem; }
.rank-section-title {
      display: flex; align-items: center; gap: .6rem;
      font-size: 1.55rem; font-weight: 800; color: var(--text); margin-bottom: 1.25rem;
    }
.rank-section-title i { color: var(--primary); font-size: 1.4rem; }
.rank-note { font-size: .85rem; color: var(--accent); font-weight: 400; margin-left: auto; }

/* --- 子页面追加 --- */
/* 站点地图页面专属样式 */
        .sitemap-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
.sitemap-list li {
            padding: 14px 20px;
            margin-bottom: 12px;
            background: rgba(255,255,255,0.6);
            border: 1px solid rgba(100, 116, 139, 0.15);
            border-radius: var(--radius-md);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
.sitemap-list li:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow);
        }
.sitemap-list li a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.sitemap-list li a:hover {
            color: var(--text);
        }
.sitemap-list li a i {
            width: 24px;
            text-align: center;
            color: var(--accent);
        }
.sitemap-list li p {
            margin: 6px 0 0 36px;
            color: var(--text);
            opacity: 0.7;
            font-size: 0.9rem;
        }
.sitemap-section {
            margin-bottom: 48px;
        }
.sitemap-section h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.sitemap-section h3 i {
            color: var(--accent);
        }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.table { color:#1e293b !important; border-color:rgba(0,0,0,.12) !important; --bs-table-bg:transparent !important; --bs-table-color:#1e293b !important; }
.accordion-item { background:rgba(0,0,0,.03) !important; color:#1e293b !important; border-color:rgba(0,0,0,.12) !important; }
.accordion-button { background:rgba(0,0,0,.03) !important; color:#1e293b !important; }
.accordion-body { background:transparent !important; color:#1e293b !important; }
.accordion-header { background:transparent !important; }