:root {
        --primary: #22d3ee;
        --accent: #fb923c;
        --bg: #0f172a;
        --text: #e2e8f0;
        --border: 3px solid #e2e8f0;
        --shadow: 8px 8px 0px 0px rgba(226, 232, 240, 0.15);
    }

    * { border-radius: 0 !important; }
    body {
        background-color: var(--bg);
        color: var(--text);
        font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        line-height: 1.5;
        font-size: 15px;
        letter-spacing: 0.02em;
    }

    h1,h2,h3,h4,h5,h6 { font-weight: 800; color: #fff; letter-spacing: -0.02em; }

    /* 硬朗直角粗边框 */
    .hard-border { border: var(--border); box-shadow: var(--shadow); }
    .btn-hard {
        border: 2px solid var(--text);
        background: transparent;
        color: var(--text);
        font-weight: 600;
        padding: 0.5rem 1.5rem;
        transition: all 0.1s ease-in-out;
    }
    .btn-hard:hover {
        background: var(--primary);
        border-color: var(--primary);
        color: #0f172a;
        box-shadow: 4px 4px 0 0 #fff;
    }

    /* 导航吸顶 + 硬朗 */
    .sticky-nav {
        position: sticky;
        top: 0;
        z-index: 1050;
        background: rgba(15, 23, 42, 0.85);
        backdrop-filter: blur(10px);
        border-bottom: 3px solid var(--text);
    }
    .navbar-brand {
        font-weight: 900;
        font-size: 1.6rem;
        letter-spacing: -0.02em;
        color: var(--primary) !important;
        text-shadow: 2px 2px 0 var(--accent);
    }
    .nav-link {
        color: var(--text) !important;
        font-weight: 600;
        margin: 0 0.5rem;
        border-bottom: 2px solid transparent;
    }
    .nav-link:hover { border-bottom-color: var(--accent); color: #fff !important; }

    /* 渐变光晕/模糊光斑 */
    .glow-orb {
        position: absolute;
        width: 300px; height: 300px;
        background: radial-gradient(circle, rgba(251,146,60,0.25) 0%, transparent 70%);
        filter: blur(40px);
        pointer-events: none;
        z-index: 0;
    }
    .glow-cyan {
        background: radial-gradient(circle, rgba(34,211,238,0.2) 0%, transparent 70%);
    }

    /* hero 统计数字 */
    .hero-stat {
        font-size: 4.5rem;
        font-weight: 900;
        line-height: 1;
        color: var(--primary);
        display: inline-block;
        margin-right: 0.5rem;
    }
    .stat-label { font-size: 1rem; font-weight: 500; color: var(--text); }

    /* 双色块分屏 */
    .split-block-left { background: #0b1322; border-right: 4px solid var(--accent); }
    .split-block-right { background: rgba(34,211,238,0.05); }

    /* 标签页 */
    .nav-tabs .nav-link {
        background: transparent;
        border: 2px solid var(--text);
        color: var(--text);
        font-weight: 700;
        margin-right: 6px;
        padding: 0.4rem 1.2rem;
    }
    .nav-tabs .nav-link.active {
        background: var(--accent);
        border-color: var(--accent);
        color: #0f172a;
    }
    .tab-content { border: 2px solid var(--text); padding: 1.2rem; background: rgba(0,0,0,0.2); }

    /* 时间线 */
    .timeline {
        border-left: 4px solid var(--primary);
        padding-left: 2rem;
        position: relative;
        margin-left: 1rem;
    }
    .timeline-item {
        position: relative;
        margin-bottom: 2.2rem;
    }
    .timeline-item::before {
        content: '';
        position: absolute;
        left: -2.7rem;
        top: 0.4rem;
        width: 14px; height: 14px;
        background: var(--accent);
        border: 2px solid #fff;
        box-shadow: 0 0 0 3px var(--bg);
    }

    /* 海报hover播放按钮 */
    .poster-card {
        position: relative;
        overflow: hidden;
        border: 2px solid var(--text);
        transition: transform 0.15s, box-shadow 0.15s;
    }
    .poster-card img { width: 100%; height: 250px; object-fit: cover; filter: grayscale(20%); }
    .poster-card .play-overlay {
        position: absolute;
        inset: 0;
        background: rgba(15,23,42,0.5);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition: opacity 0.2s;
        font-size: 3.5rem;
        color: var(--accent);
        text-shadow: 0 0 20px rgba(251,146,60,0.8);
    }
    .poster-card:hover .play-overlay { opacity: 1; }

    /* FAQ手风琴 */
    .accordion-item { background: transparent; border: 2px solid var(--text); margin-bottom: 12px; }
    .accordion-button { background: #131f36; color: var(--text); font-weight: 700; box-shadow: none; }
    .accordion-button:not(.collapsed) { background: var(--primary); color: #0f172a; }

    /* CTA区块 */
    .cta-section {
        background: linear-gradient(145deg, rgba(251,146,60,0.15), rgba(34,211,238,0.1));
        border: 3px solid var(--text);
        box-shadow: var(--shadow);
        padding: 3rem 2rem;
    }

    footer { border-top: 3px solid var(--text); }
    .footer-link { color: var(--text); text-decoration: underline wavy var(--accent); }
    .footer-link:hover { color: var(--primary); }

    /* 回到顶部 */
    #back-top {
        position: fixed;
        bottom: 30px; right: 30px;
        width: 50px; height: 50px;
        background: var(--accent);
        border: 2px solid #fff;
        display: flex; align-items: center; justify-content: center;
        font-size: 1.5rem;
        color: #0f172a;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.2s, visibility 0.2s;
        z-index: 1100;
        cursor: pointer;
    }
    #back-top.show { opacity: 1; visibility: visible; }

    /* 紧凑排版 */
    .compact-section { padding: 3.5rem 0; }
    .section-title { border-left: 8px solid var(--accent); padding-left: 1.2rem; margin-bottom: 2rem; }

    /* 友链区 */
    .friend-links { border: 2px dashed var(--text); padding: 1.2rem; background: rgba(34,211,238,0.03); }

/* --- 子页面追加 --- */
/* 保证导航高亮“关于” */
        .navbar-nav .nav-link[href="/about.html"] {
            color: var(--primary);
            text-shadow: 0 0 8px rgba(34, 211, 238, 0.4);
        }
/* 关于页特有的板块间距微调 */
        .about-hero { padding-top: 2.5rem; padding-bottom: 1.5rem; }
.split-block-left, .split-block-right { border: var(--border); box-shadow: var(--shadow); }
.timeline-item h3 { color: var(--primary); }
.about-extra { background: rgba(15, 23, 42, 0.6); border: var(--border); padding: 2rem; box-shadow: var(--shadow); }
/* 确保卡片/表单等Bootstrap组件融入深色，避免白底 */
        .accordion-item, .accordion-button, .form-control, .card {
            background: rgba(15, 23, 42, 0.8);
            color: var(--text);
            border-color: rgba(226, 232, 240, 0.3);
        }
.list-group-item {
            background: transparent;
            color: var(--text);
            border-color: rgba(226, 232, 240, 0.15);
        }
a.footer-link { color: var(--text); }

/* --- 子页面追加 --- */
.ranking-hero {
            padding: 3rem 0;
            border-bottom: 3px solid var(--text);
            margin-bottom: 2.5rem;
        }
.ranking-hero h1 {
            font-size: 2.5rem;
            font-weight: 900;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
.ranking-hero .sub {
            font-size: 1.1rem;
            opacity: 0.8;
            max-width: 720px;
        }
.rank-tabs {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2.5rem;
        }
.rank-tab {
            padding: 0.6rem 1.8rem;
            font-weight: 700;
            font-size: 1rem;
            border: 3px solid var(--text);
            background: transparent;
            color: var(--text);
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: var(--shadow);
        }
.rank-tab:hover, .rank-tab.active {
            background: var(--primary);
            color: var(--bg);
            border-color: var(--primary);
        }
.rank-section {
            margin-bottom: 3rem;
        }
.rank-section-title {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--text);
            display: inline-block;
        }
.rank-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
.rank-item {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            padding: 1rem 1.25rem;
            border: 3px solid var(--text);
            background: rgba(15, 23, 42, 0.6);
            box-shadow: var(--shadow);
            transition: transform 0.2s;
        }
.rank-item:hover {
            transform: translateX(6px);
        }
.rank-number {
            font-size: 1.75rem;
            font-weight: 900;
            min-width: 60px;
            text-align: center;
            color: var(--primary);
            font-style: italic;
        }
.rank-number.top1 { color: var(--accent); }
.rank-number.top2 { color: #a5f3fc; }
.rank-number.top3 { color: var(--primary); }
.rank-info {
            flex: 1;
        }
.rank-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }
.rank-meta {
            font-size: 0.85rem;
            opacity: 0.7;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
.rank-score {
            font-weight: 800;
            color: var(--accent);
            font-size: 1.25rem;
            min-width: 70px;
            text-align: right;
        }
.rank-badge {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            font-size: 0.7rem;
            font-weight: 700;
            border: 2px solid var(--text);
            margin-left: 0.5rem;
            vertical-align: middle;
        }
.rank-badge.hot { color: var(--accent); border-color: var(--accent); }
.rank-badge.new { color: var(--primary); border-color: var(--primary); }
.rank-note {
            margin-top: 2rem;
            padding: 1rem 1.5rem;
            border: 3px solid var(--text);
            background: rgba(251, 146, 60, 0.08);
            font-size: 0.95rem;
            line-height: 1.7;
        }
.rank-note i {
            color: var(--accent);
            margin-right: 0.5rem;
        }
.ranking-hero h1 { font-size: 1.8rem; }
.rank-item { flex-wrap: wrap; gap: 0.75rem; }
.rank-number { min-width: 40px; font-size: 1.25rem; }
.rank-score { min-width: auto; }
.rank-tab { padding: 0.5rem 1.2rem; font-size: 0.9rem; }

/* --- 子页面追加 --- */
.legal-section { padding: 4rem 0; }
.legal-section h2 { 
            color: var(--primary); 
            margin-bottom: 1.5rem;
            font-weight: 800;
        }
.legal-section h3 {
            color: var(--accent);
            margin-bottom: 1rem;
            font-weight: 700;
        }
.legal-section p, .legal-section li {
            color: var(--text);
            line-height: 1.8;
            opacity: 0.9;
        }
.legal-section ul, .legal-section ol {
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
        }
.legal-section li {
            margin-bottom: 0.5rem;
        }
.legal-box {
            background: rgba(255,255,255,0.03);
            border: 2px solid rgba(34,211,238,0.2);
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
        }
.legal-box strong {
            color: var(--primary);
        }
.last-updated {
            display: inline-block;
            padding: 0.5rem 1rem;
            background: rgba(34,211,238,0.1);
            border: 1px solid rgba(34,211,238,0.3);
            border-radius: 20px;
            color: var(--primary);
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
.contact-email {
            color: var(--accent);
            font-weight: 600;
        }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-body { background:transparent !important; color:#e2e8f0 !important; }
.accordion-header { background:transparent !important; }