:root {
        --primary: #64748b;
        --accent: #94a3b8;
        --bg: #f1f5f9;
        --text: #1e293b;
        --border: #cbd5e1;
        --white: #ffffff;
        --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    }
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    body {
        background-color: var(--bg);
        color: var(--text);
        font-family: var(--font-main);
        font-weight: 400;
        line-height: 1.7;
        letter-spacing: 0.01em;
        position: relative;
    }
    /* 顶部噪点纹理 */
    body::before {
        content: "";
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
        z-index: 0;
    }
    .container-custom {
        max-width: 860px;
        margin: 0 auto;
        padding: 0 24px;
    }
    /* 滚动进度条 */
    #scroll-progress {
        position: fixed;
        top: 0;
        left: 0;
        height: 3px;
        background-color: var(--primary);
        width: 0%;
        z-index: 9999;
        transition: width 0.1s linear;
        border-radius: 0 2px 2px 0;
    }
    /* 导航 */
    .navbar-custom {
        background-color: rgba(241, 245, 249, 0.85);
        backdrop-filter: blur(8px);
        border-bottom: 1px solid var(--border);
        padding: 12px 0;
        z-index: 1000;
        position: sticky;
        top: 0;
    }
    .navbar-brand {
        font-weight: 800;
        font-size: 1.6rem;
        color: var(--text) !important;
        letter-spacing: -0.03em;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .navbar-brand i {
        color: var(--primary);
        font-size: 1.4rem;
    }
    .nav-links {
        display: flex;
        gap: 28px;
        align-items: center;
    }
    .nav-links a {
        color: var(--text);
        font-weight: 500;
        font-size: 0.95rem;
        text-decoration: none;
        transition: color 0.2s;
        border-bottom: 1px solid transparent;
        padding-bottom: 4px;
    }
    .nav-links a:hover {
        color: var(--primary);
        border-bottom-color: var(--primary);
    }
    .navbar-toggler {
        border: none;
        background: transparent;
        font-size: 1.8rem;
        color: var(--text);
        cursor: pointer;
        display: none;
    }
    @media (max-width: 768px) {
        .nav-links {
            display: none;
            flex-direction: column;
            align-items: flex-start;
            width: 100%;
            padding: 12px 0;
            gap: 12px;
        }
        .nav-links.open {
            display: flex;
        }
        .navbar-toggler {
            display: block;
        }
    }
    /* hero */
    .hero-section {
        padding: 5rem 0 4rem;
        position: relative;
        overflow: hidden;
        border-bottom: 1px solid var(--border);
    }
    .hero-content {
        position: relative;
        z-index: 2;
    }
    .hero-title {
        font-size: clamp(3rem, 8vw, 4.2rem);
        font-weight: 900;
        letter-spacing: -0.04em;
        line-height: 1.1;
        margin-bottom: 1.5rem;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }
    .hero-sub {
        font-size: 1.1rem;
        color: #475569;
        max-width: 480px;
        font-weight: 400;
        margin-bottom: 2rem;
    }
    .btn-primary-custom {
        background-color: var(--primary);
        border: 1px solid var(--primary);
        color: white;
        font-weight: 600;
        padding: 0.75rem 2rem;
        border-radius: 60px;
        text-decoration: none;
        display: inline-block;
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
        z-index: 1;
    }
    .btn-primary-custom::before {
        content: "";
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(120deg, transparent, rgba(255,255,255,0.3), transparent);
        transition: left 0.5s ease;
        z-index: 0;
    }
    .btn-primary-custom:hover::before {
        left: 100%;
    }
    .btn-primary-custom:hover {
        background-color: #55667c;
        border-color: #55667c;
    }
    .hero-float-element {
        position: absolute;
        top: 2rem;
        right: 5%;
        font-size: 4rem;
        opacity: 0.3;
        color: var(--accent);
        animation: float 6s ease-in-out infinite;
        z-index: 1;
    }
    .hero-float-element-2 {
        bottom: 3rem;
        left: 2%;
        top: auto;
        animation-delay: 2s;
    }
    @keyframes float {
        0% { transform: translateY(0px); }
        50% { transform: translateY(-20px); }
        100% { transform: translateY(0px); }
    }
    /* 通用区块 */
    .section-block {
        padding: 4.5rem 0;
        border-bottom: 1px solid var(--border);
    }
    .section-label {
        font-weight: 600;
        font-size: 0.8rem;
        text-transform: uppercase;
        letter-spacing: 0.15em;
        color: var(--primary);
        margin-bottom: 0.5rem;
    }
    .section-title {
        font-size: 2.2rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        margin-bottom: 1rem;
    }
    .section-desc {
        color: #475569;
        max-width: 560px;
        margin-bottom: 2.5rem;
    }
    /* 卡片 */
    .feature-card {
        background-color: transparent;
        border: 1px solid var(--border);
        border-radius: 20px;
        padding: 2rem 1.5rem;
        transition: border-color 0.2s, background 0.2s;
        height: 100%;
    }
    .feature-card:hover {
        border-color: var(--primary);
        background: rgba(255,255,255,0.3);
    }
    .feature-icon {
        font-size: 2rem;
        color: var(--primary);
        margin-bottom: 1.2rem;
        display: inline-block;
        border: 1.5px solid var(--primary);
        border-radius: 30%;
        padding: 12px;
        line-height: 1;
    }
    .feature-card h3 {
        font-size: 1.2rem;
        font-weight: 700;
        margin-bottom: 0.5rem;
    }
    .feature-card p {
        color: #475569;
        font-size: 0.9rem;
        margin: 0;
    }
    /* 步骤条 */
    .step-item {
        display: flex;
        gap: 1.5rem;
        margin-bottom: 2.5rem;
        border-bottom: 1px dashed var(--border);
        padding-bottom: 2rem;
    }
    .step-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .step-number {
        font-size: 2rem;
        font-weight: 800;
        color: transparent;
        -webkit-text-stroke: 1.5px var(--primary);
        line-height: 1;
        min-width: 50px;
    }
    .step-content h4 {
        font-weight: 700;
        font-size: 1.2rem;
        margin-bottom: 0.4rem;
    }
    .step-content p {
        color: #475569;
    }
    /* FAQ折叠 */
    .faq-item {
        border: 1px solid var(--border);
        border-radius: 16px;
        margin-bottom: 16px;
        background: transparent;
    }
    .faq-question {
        padding: 1rem 1.5rem;
        font-weight: 600;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        color: var(--text);
        font-size: 1rem;
    }
    .faq-question i {
        transition: transform 0.2s;
        color: var(--primary);
    }
    .faq-answer {
        padding: 0 1.5rem 1.2rem;
        color: #475569;
        display: none;
        border-top: 1px dashed var(--border);
        padding-top: 0.8rem;
    }
    .faq-item.open .faq-answer {
        display: block;
    }
    .faq-item.open .faq-question i {
        transform: rotate(180deg);
    }
    /* 介绍区块 */
    .intro-text {
        font-size: 1.05rem;
        line-height: 1.9;
        color: #334155;
    }
    .intro-highlight {
        font-weight: 600;
        color: var(--primary);
    }
    /* CTA */
    .cta-section {
        background-color: var(--white);
        border-bottom: 1px solid var(--border);
    }
    .cta-box {
        border: 2px solid var(--primary);
        border-radius: 30px;
        padding: 3rem 2rem;
        background: rgba(100,116,139,0.03);
        text-align: center;
    }
    .cta-box h2 {
        font-weight: 800;
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    /* 友链 */
    .friends-links {
        border-top: 1px solid var(--border);
        padding: 2rem 0;
    }
    .friends-title {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--primary);
        letter-spacing: 0.05em;
        margin-bottom: 1rem;
    }
    .friends-content {
        font-size: 0.95rem;
        color: #475569;
    }
    footer {
        background-color: var(--bg);
        padding: 2rem 0;
        border-top: 1px solid var(--border);
        color: #64748b;
        font-size: 0.9rem;
    }
    a {
        color: var(--primary);
    }
    /* 杂项 */
    .navbar-toggler i {
        color: var(--text);
    }
    .border-rounded {
        border-radius: 20px;
    }
    .no-shadow {
        box-shadow: none !important;
    }
    .bg-transparent-custom {
        background: transparent;
    }

/* --- 子页面追加 --- */
.ranking-hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            padding: 80px 0 60px;
            margin-bottom: 50px;
            position: relative;
            overflow: hidden;
        }
.ranking-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            animation: float 6s ease-in-out infinite;
        }
0%, 100% { transform: translateY(0); }
.ranking-hero h1 {
            color: var(--white);
            font-size: 2.5rem;
            font-weight: 800;
            position: relative;
            z-index: 1;
        }
.ranking-hero p {
            color: rgba(255,255,255,0.9);
            position: relative;
            z-index: 1;
        }
.rank-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 20px;
            transition: transform 0.3s, box-shadow 0.3s;
            position: relative;
            overflow: hidden;
        }
.rank-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
        }
.rank-number {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            min-width: 60px;
        }
.rank-card:nth-child(1) .rank-number,
        .rank-card:nth-child(2) .rank-number,
        .rank-card:nth-child(3) .rank-number {
            color: #e11d48;
        }
.rank-card:nth-child(1) .rank-badge,
        .rank-card:nth-child(2) .rank-badge,
        .rank-card:nth-child(3) .rank-badge {
            background: #e11d48;
            color: var(--white);
        }
.rank-badge {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 8px;
        }
.rank-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 5px;
        }
.rank-meta {
            color: var(--accent);
            font-size: 0.85rem;
            margin-bottom: 10px;
        }
.rank-desc {
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.6;
            opacity: 0.9;
        }
.rank-stats {
            display: flex;
            gap: 15px;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--accent);
        }
.rank-stats i {
            color: var(--primary);
            margin-right: 5px;
        }
.trend-up { color: #16a34a; }
.trend-down { color: #dc2626; }
.trend-flat { color: var(--accent); }
.genre-filter {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 35px;
        }
.genre-btn {
            background: var(--white);
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 20px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.3s;
            cursor: pointer;
        }
.genre-btn:hover, .genre-btn.active {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }
.update-info {
            background: var(--white);
            border-left: 4px solid var(--primary);
            padding: 15px 20px;
            border-radius: 0 8px 8px 0;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
        }
.update-info i {
            color: var(--primary);
            font-size: 1.2rem;
        }
.recommend-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 20px;
            height: 100%;
            transition: transform 0.3s;
        }
.recommend-card:hover {
            transform: translateY(-3px);
        }
.recommend-card .icon-circle {
            width: 50px;
            height: 50px;
            background: var(--bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 15px;
        }
.recommend-card .icon-circle i {
            font-size: 1.3rem;
            color: var(--primary);
        }
.recommend-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
.recommend-card p {
            font-size: 0.9rem;
            color: var(--text);
            opacity: 0.8;
            line-height: 1.6;
            margin-bottom: 0;
        }

/* --- 子页面追加 --- */
/* 本页专属样式 - 关于我们页 */
        .about-hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
.about-hero::after {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 300px;
            height: 300px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
        }
.about-hero-content {
            position: relative;
            z-index: 2;
            color: var(--white);
        }
.about-hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.2;
        }
.about-hero-content p {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 700px;
            margin-bottom: 0;
        }
.about-section {
            padding: 80px 0;
        }
.about-section-alt {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
.about-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 40px;
        }
.about-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 28px;
            transition: all 0.3s ease;
        }
.about-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(100,116,139,0.15);
        }
.about-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
.about-card h3 {
            color: var(--text);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
.about-card p {
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.6;
            opacity: 0.85;
            margin-bottom: 0;
        }
.stat-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-top: 50px;
            text-align: center;
        }
.stat-item {
            padding: 30px 20px;
            background: var(--white);
            border-radius: 12px;
            border: 1px solid var(--border);
        }
.stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--primary);
            display: block;
            margin-bottom: 8px;
        }
.stat-label {
            font-size: 0.95rem;
            color: var(--text);
            opacity: 0.75;
            font-weight: 500;
        }
.timeline {
            position: relative;
            padding-left: 30px;
            margin-top: 40px;
        }
.timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border);
        }
.timeline-item {
            position: relative;
            padding-bottom: 30px;
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--white);
            box-shadow: 0 0 0 2px var(--primary);
        }
.timeline-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
.timeline-item p {
            color: var(--text);
            opacity: 0.8;
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0;
        }
.quote-block {
            background: var(--primary);
            border-radius: 16px;
            padding: 50px 40px;
            color: var(--white);
            text-align: center;
            margin-top: 60px;
            position: relative;
            overflow: hidden;
        }
.quote-block::before {
            content: '\201C';
            font-size: 8rem;
            position: absolute;
            top: -20px;
            left: 20px;
            opacity: 0.2;
            font-family: Georgia, serif;
        }
.quote-block p {
            font-size: 1.3rem;
            font-weight: 500;
            line-height: 1.8;
            max-width: 800px;
            margin: 0 auto;
        }
.quote-block .quote-author {
            margin-top: 20px;
            font-size: 0.95rem;
            opacity: 0.85;
        }
.about-hero-content h1 {
                font-size: 2rem;
            }
.about-hero {
                padding: 60px 0 40px;
            }
.about-section {
                padding: 60px 0;
            }
.quote-block {
                padding: 40px 24px;
            }
.quote-block p {
                font-size: 1.1rem;
            }

/* --- 子页面追加 --- */
/* 覆盖 bootstrap 默认白底黑字，与韩漫画配色统一 */
        .card, .card-body, .card-header, .card-footer {
            background: var(--white);
            color: var(--text);
            border-color: var(--border);
        }
.form-control, .form-select {
            background: #ffffff;
            color: var(--text);
            border-color: var(--border);
        }
.form-control::placeholder {
            color: #94a3b8;
        }
.list-group-item {
            background: var(--white);
            color: var(--text);
            border-color: var(--border);
        }
.accordion-item, .accordion-button {
            background: var(--white);
            color: var(--text);
            border-color: var(--border);
        }
.accordion-button:not(.collapsed) {
            background: #e9eef5;
            color: var(--text);
        }
.modal-content {
            background: var(--white);
            color: var(--text);
        }
.dropdown-menu, .dropdown-item {
            background: var(--white);
            color: var(--text);
        }
.navbar, .navbar-brand, .nav-link {
            color: var(--text);
        }
/* 确保链接配色与品牌一致 */
        a {
            color: var(--primary);
        }
/* 免责声明页面微调 */
        .disclaimer-hero {
            background: linear-gradient(145deg, #f8fafc 0%, #e2e8f0 100%);
            border-bottom: 1px solid var(--border);
        }
.disclaimer-block {
            background: var(--white);
            border-radius: 16px;
            padding: 2rem;
            border: 1px solid var(--border);
            box-shadow: 0 4px 16px rgba(100, 116, 139, 0.06);
        }
.disclaimer-icon {
            color: var(--primary);
            margin-right: 10px;
        }
.text-muted-custom {
            color: #64748b;
        }
.section-title-sm {
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }
hr {
            border-color: var(--border);
            opacity: .6;
        }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .guide-hero {
            background: linear-gradient(135deg, rgba(100, 116, 139, 0.08) 0%, rgba(148, 163, 184, 0.12) 100%);
            border-bottom: 1px solid var(--border);
            padding: 60px 0 40px;
        }
.guide-section {
            padding: 50px 0;
            border-bottom: 1px solid var(--border);
        }
.guide-section:last-of-type {
            border-bottom: none;
        }
.guide-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 24px;
            height: 100%;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
.guide-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(30, 41, 59, 0.08);
        }
.guide-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(100, 116, 139, 0.12);
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 14px;
        }
.guide-steps {
            counter-reset: guide-step;
            padding-left: 0;
            list-style: none;
        }
.guide-steps li {
            counter-increment: guide-step;
            position: relative;
            padding-left: 48px;
            margin-bottom: 20px;
            line-height: 1.7;
        }
.guide-steps li::before {
            content: counter(guide-step);
            position: absolute;
            left: 0;
            top: 0;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }
.guide-tip {
            background: rgba(100, 116, 139, 0.08);
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
        }
.guide-tip i {
            color: var(--primary);
            margin-right: 8px;
        }
.guide-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(100, 116, 139, 0.15);
            color: var(--primary);
            margin-bottom: 12px;
        }
.table-of-contents {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 24px;
            margin-bottom: 40px;
        }
.table-of-contents a {
            color: var(--primary);
            text-decoration: none;
            display: inline-block;
            padding: 4px 0;
            transition: color 0.2s;
        }
.table-of-contents a:hover {
            color: var(--text);
        }
.table-of-contents ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }
.table-of-contents ul ul {
            padding-left: 20px;
            margin-top: 4px;
        }
.table-of-contents li {
            margin-bottom: 4px;
        }
.guide-hero {
                padding: 40px 0 30px;
            }
.guide-section {
                padding: 40px 0;
            }
.guide-card {
                margin-bottom: 16px;
            }