:root {
            --primary: #4f46e5;
            --accent: #7c3aed;
            --bg: #f5f3ff;
            --text: #1e1b4b;
            --border-light: rgba(79, 70, 229, 0.12);
            --shadow-sm: 0 4px 12px rgba(79, 70, 229, 0.06);
            --radius: 8px;
        }
        body {
            background-color: var(--bg);
            color: var(--text);
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            font-weight: 400;
            line-height: 1.5;
            font-size: 0.92rem;
            padding-top: 72px;
        }
        /* 噪点纹理 */
        body::before {
            content: "";
            position: fixed;
            top: 0; left: 0; width: 100vw; height: 100vh;
            background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
            pointer-events: none;
            z-index: 9999;
        }
        h1,h2,h3,h4,h5 {
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        a { text-decoration: none; color: var(--primary); }
        .navbar {
            background: rgba(245, 243, 255, 0.85);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 10px rgba(79,70,229,0.04);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
            letter-spacing: -0.5px;
            color: var(--text);
        }
        .navbar-brand i {
            color: var(--accent);
            margin-right: 8px;
        }
        .nav-link {
            font-weight: 600;
            color: var(--text);
            opacity: 0.8;
            padding: 0.5rem 1rem;
        }
        .nav-link:hover { opacity: 1; color: var(--primary); }
        .btn-outline-primary { border-color: var(--primary); color: var(--primary); }
        .btn-outline-primary:hover { background: var(--primary); color: white; }
        .btn-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white !important;
            border: none;
            transition: all 0.2s ease;
            background-size: 200% 200%;
        }
        .btn-gradient:hover {
            background-position: 100% 0;
            box-shadow: 0 8px 20px rgba(124,58,237,0.25);
        }
        .btn-shine {
            position: relative;
            overflow: hidden;
        }
        .btn-shine::after {
            content: "";
            position: absolute;
            top: -50%; left: -60%;
            width: 40%; height: 200%;
            background: linear-gradient(105deg, transparent, rgba(255,255,255,0.3), transparent);
            transform: rotate(15deg);
            transition: all 0.5s ease;
            opacity: 0;
        }
        .btn-shine:hover::after {
            left: 120%;
            opacity: 1;
        }
        .hero-section {
            padding: 3rem 0 2rem;
            background: linear-gradient(180deg, #eef0ff 0%, var(--bg) 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-section .display-4 {
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
        }
        .hero-section .lead {
            font-weight: 400;
            opacity: 0.85;
        }
        .card {
            background: white;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            transition: transform 0.15s ease, box-shadow 0.2s;
            padding: 1rem 1.2rem;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(79,70,229,0.06);
        }
        .icon-single { color: var(--primary); width: 1.8rem; text-align: center; }
        .section-title {
            font-weight: 800;
            letter-spacing: -0.02em;
            border-left: 6px solid var(--accent);
            padding-left: 12px;
            margin-bottom: 1.2rem;
        }
        .bento-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }
        .bento-item {
            border-radius: var(--radius);
            background: white;
            border: 1px solid var(--border-light);
            padding: 1rem 1rem;
            box-shadow: var(--shadow-sm);
        }
        .bento-item.tall { grid-row: span 2; }
        .bento-item.wide { grid-column: span 2; }
        .faq-item {
            border-bottom: 1px dashed var(--border-light);
            padding: 0.8rem 0;
        }
        .faq-question {
            font-weight: 700;
        }
        footer {
            border-top: 1px solid var(--border-light);
            padding: 1.5rem 0;
            background: white;
        }
        .friend-links {
            background: rgba(255,255,255,0.7);
            padding: 1.2rem 0;
            border-top: 1px solid var(--border-light);
        }
        .badge-count {
            background: var(--accent);
            color: white;
            border-radius: 30px;
            padding: 2px 8px;
            font-size: 0.65rem;
        }
        /* 视差 & 动画 */
        .parallax-bg {
            background-attachment: fixed;
            background-position: center;
            background-repeat: no-repeat;
            background-size: cover;
            opacity: 0.1;
        }
        @media (max-width: 992px) {
            .bento-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 576px) {
            .bento-grid { grid-template-columns: 1fr; }
            .navbar .navbar-collapse { background: white; border-radius: var(--radius); padding: 0.5rem; }
        }

/* --- 子页面追加 --- */
/* 确保 Bootstrap 组件被本站配色覆盖，避免白底黑字突兀 */
        .card, .card-body, .card-title, .card-text, .card-header, .card-footer,
        .form-control, .form-select, .form-label, .input-group-text,
        .table, .list-group-item, .accordion-item, .accordion-button, .accordion-body,
        .modal-content, .modal-header, .modal-body, .dropdown-menu, .dropdown-item,
        .nav-link, .navbar, .navbar-brand, .btn-light, .btn-outline-* {
            background: transparent;
            color: var(--text);
            border-color: var(--border-light);
        }
/* 本页特调：让关于页的卡片更融入深紫渐变背景 */
        .about-hero {
            background: linear-gradient(145deg, rgba(79, 70, 229, 0.08) 0%, rgba(124, 58, 237, 0.04) 100%);
            border-bottom: 1px solid var(--border-light);
        }
.about-section {
            background: var(--bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 2rem;
            margin-bottom: 2.5rem;
            border: 1px solid var(--border-light);
        }
.about-section h2 {
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 1.2rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
.about-section h2 i {
            color: var(--accent);
            font-size: 1.5rem;
        }
.about-section p, .about-section li {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text);
        }
.timeline-marker {
            display: flex;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
.timeline-marker .year-badge {
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            height: fit-content;
            min-width: 70px;
            text-align: center;
            font-size: 0.9rem;
            box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
        }
.value-icon {
            background: rgba(79, 70, 229, 0.1);
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
.friend-links a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            margin-right: 1.5rem;
        }
.friend-links a:hover {
            text-decoration: underline;
            color: var(--accent);
        }
/* 导航高亮当前页 */
        .navbar-nav .nav-link.active {
            font-weight: 700;
            color: var(--primary) !important;
            border-bottom: 2px solid var(--primary);
        }

/* --- 子页面追加 --- */
.disclaimer-section {
            padding: 80px 0 60px;
            max-width: 900px;
            margin: 0 auto;
        }
.disclaimer-card {
            background: rgba(255,255,255,0.7);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 35px 40px;
            margin-bottom: 25px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
.disclaimer-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.1);
        }
.disclaimer-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.disclaimer-card h2 i {
            font-size: 1.3rem;
            color: var(--accent);
        }
.disclaimer-card p {
            color: #333;
            line-height: 1.8;
            margin-bottom: 14px;
            font-size: 0.95rem;
        }
.disclaimer-card ul {
            padding-left: 20px;
            margin-bottom: 14px;
        }
.disclaimer-card li {
            color: #333;
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 8px;
        }
.disclaimer-card strong {
            color: var(--primary);
        }
.disclaimer-hero {
            background: linear-gradient(135deg, rgba(79,70,229,0.08) 0%, rgba(124,58,237,0.08) 100%);
            border-bottom: 1px solid var(--border-light);
            padding: 60px 0 40px;
            text-align: center;
        }
.disclaimer-hero h1 {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 12px;
        }
.disclaimer-hero p {
            font-size: 1.1rem;
            color: #555;
            max-width: 600px;
            margin: 0 auto;
        }
.disclaimer-meta {
            font-size: 0.9rem;
            color: #777;
            margin-top: 15px;
            display: flex;
            justify-content: center;
            gap: 30px;
        }
.disclaimer-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
.disclaimer-meta i {
            color: var(--accent);
        }
.last-updated {
            text-align: center;
            color: #888;
            font-size: 0.9rem;
            margin: 40px 0 0;
            padding: 20px;
            border-top: 1px solid var(--border-light);
        }
.disclaimer-section {
                padding: 50px 0 40px;
            }
.disclaimer-card {
                padding: 25px 20px;
            }
.disclaimer-hero h1 {
                font-size: 1.9rem;
            }
.disclaimer-meta {
                flex-direction: column;
                gap: 8px;
            }

/* --- 子页面追加 --- */
/* 排行榜专属样式 */
        .rank-hero {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
.rank-hero h1 {
            font-weight: 800;
            font-size: 2.5rem;
            position: relative;
            z-index: 2;
        }
.rank-hero p {
            position: relative;
            z-index: 2;
            opacity: .95;
            max-width: 600px;
            margin-top: 12px;
        }
.rank-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 30px 0 20px;
        }
.rank-tab {
            background: var(--border-light);
            border: 1px solid var(--border-light);
            color: var(--text);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: .85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all .3s ease;
        }
.rank-tab:hover, .rank-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
.rank-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
.rank-item {
            background: var(--card-bg, #fff);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 20px;
            display: flex;
            gap: 20px;
            align-items: center;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            position: relative;
        }
.rank-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(79, 70, 229, .12);
        }
.rank-num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            min-width: 50px;
            text-align: center;
            line-height: 1;
        }
.rank-item:nth-child(1) .rank-num,
        .rank-item:nth-child(2) .rank-num,
        .rank-item:nth-child(3) .rank-num {
            color: var(--accent);
            font-size: 2.3rem;
        }
.rank-item:nth-child(1) .rank-num::after,
        .rank-item:nth-child(2) .rank-num::after,
        .rank-item:nth-child(3) .rank-num::after {
            content: "🔥";
            font-size: .8rem;
            display: block;
        }
.rank-info {
            flex: 1;
        }
.rank-info h3 {
            margin: 0 0 6px;
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
        }
.rank-info p {
            margin: 0;
            font-size: .9rem;
            color: rgba(30, 27, 75, .7);
            line-height: 1.6;
        }
.rank-meta {
            display: flex;
            gap: 15px;
            margin-top: 8px;
            font-size: .8rem;
            color: rgba(30, 27, 75, .6);
            flex-wrap: wrap;
        }
.rank-meta span i {
            color: var(--primary);
            margin-right: 4px;
        }
.rank-badge {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: .75rem;
            font-weight: 600;
            white-space: nowrap;
        }
.rank-score {
            text-align: center;
            min-width: 70px;
        }
.rank-score .score {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
.rank-score .label {
            font-size: .7rem;
            color: rgba(30, 27, 75, .6);
            margin-top: 4px;
        }
.rank-section-title {
            margin: 50px 0 20px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text);
            position: relative;
            padding-left: 18px;
        }
.rank-section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 28px;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            border-radius: 3px;
        }
.rank-section-sub {
            color: rgba(30, 27, 75, .6);
            font-size: .9rem;
            margin-top: -10px;
            margin-bottom: 30px;
        }
.rank-hero h1 { font-size: 1.8rem; }
.rank-item { flex-wrap: wrap; gap: 12px; }
.rank-score { min-width: 100%; text-align: left; display: flex; gap: 10px; align-items: baseline; }
.rank-score .score { font-size: 1.2rem; }
.rank-score .label { margin-top: 0; }