:root {
        --primary: #22d3ee;
        --accent: #fb923c;
        --bg-dark: #0f172a;
        --text-light: #e2e8f0;
        --radius-sm: 8px;
        --shadow-subtle: 0 4px 24px rgba(0,0,0,0.25);
        --divider: rgba(148, 163, 184, 0.15);
    }

    * { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; }

    body {
        background-color: var(--bg-dark);
        color: var(--text-light);
        line-height: 1.75;
        overflow-x: hidden;
    }

    /* 滚动进度条 */
    #scroll-progress {
        position: fixed;
        top: 0;
        left: 0;
        width: 0%;
        height: 3px;
        background: linear-gradient(90deg, var(--primary), var(--accent));
        z-index: 9999;
        transition: width 0.1s ease-out;
    }

    /* 渐变光晕背景 */
    .glow-bg {
        position: relative;
        pointer-events: none;
    }
    .glow-bg::before {
        content: '';
        position: absolute;
        top: -10%;
        left: -5%;
        width: 40vw;
        height: 40vw;
        background: radial-gradient(circle, rgba(34, 211, 238, 0.18) 0%, transparent 70%);
        z-index: 0;
        filter: blur(40px);
    }
    .glow-bg::after {
        content: '';
        position: absolute;
        bottom: -10%;
        right: -5%;
        width: 35vw;
        height: 35vw;
        background: radial-gradient(circle, rgba(251, 146, 60, 0.14) 0%, transparent 70%);
        z-index: 0;
        filter: blur(60px);
    }

    /* 吸顶导航 */
    .sticky-nav {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(15, 23, 42, 0.82);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--divider);
    }

    .navbar-brand {
        font-weight: 800;
        font-size: 1.4rem;
        color: var(--text-light) !important;
        letter-spacing: -0.02em;
    }
    .navbar-brand i {
        color: var(--primary);
        margin-right: 6px;
    }
    .navbar-brand .highlight {
        color: var(--primary);
    }

    .nav-link {
        color: var(--text-light) !important;
        font-weight: 500;
        margin: 0 8px;
        padding: 8px 12px !important;
        border-radius: var(--radius-sm);
        transition: all 0.2s ease;
        font-size: 0.95rem;
    }
    .nav-link:hover, .nav-link.active {
        background: rgba(34, 211, 238, 0.1);
        color: var(--primary) !important;
    }

    .navbar-toggler {
        border-color: var(--divider);
    }
    .navbar-toggler:focus { box-shadow: none; }

    /* 区块通用 */
    section { padding: 80px 0; position: relative; z-index: 1; }
    .section-header {
        margin-bottom: 48px;
    }
    .section-tag {
        display: inline-block;
        background: rgba(34, 211, 238, 0.1);
        color: var(--primary);
        font-size: 0.8rem;
        font-weight: 600;
        padding: 4px 14px;
        border-radius: 100px;
        letter-spacing: 0.05em;
        margin-bottom: 16px;
        border: 1px solid rgba(34, 211, 238, 0.2);
    }
    .section-title {
        font-size: 2.2rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        color: #f8fafc;
        line-height: 1.2;
        margin-bottom: 12px;
    }
    .section-subtitle {
        color: #94a3b8;
        font-size: 1.05rem;
        max-width: 600px;
    }

    /* Hero 大数字 */
    .hero-stats {
        display: flex;
        gap: 48px;
        margin-bottom: 32px;
        flex-wrap: wrap;
    }
    .hero-stat-number {
        font-size: 3.2rem;
        font-weight: 900;
        color: var(--primary);
        line-height: 1;
        letter-spacing: -0.03em;
        font-variant-numeric: tabular-nums;
    }
    .hero-stat-label {
        font-size: 0.85rem;
        color: #94a3b8;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        margin-top: 8px;
    }
    .hero-title {
        font-size: 3.4rem;
        font-weight: 900;
        line-height: 1.15;
        letter-spacing: -0.03em;
        color: #f8fafc;
        margin: 24px 0 20px;
    }
    .hero-title span {
        background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .hero-desc {
        color: #94a3b8;
        font-size: 1.15rem;
        max-width: 540px;
        line-height: 1.8;
        margin-bottom: 32px;
    }

    .btn-custom-primary {
        background: var(--primary);
        color: #0f172a;
        font-weight: 700;
        border: none;
        padding: 12px 32px;
        border-radius: var(--radius-sm);
        transition: all 0.3s ease;
        box-shadow: 0 4px 20px rgba(34, 211, 238, 0.3);
    }
    .btn-custom-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 30px rgba(34, 211, 238, 0.4);
        color: #0f172a;
    }
    .btn-custom-outline {
        background: transparent;
        color: var(--text-light);
        border: 1px solid var(--divider);
        font-weight: 500;
        padding: 12px 32px;
        border-radius: var(--radius-sm);
        transition: all 0.3s ease;
    }
    .btn-custom-outline:hover {
        border-color: var(--primary);
        color: var(--primary);
        background: rgba(34, 211, 238, 0.05);
    }

    /* 对比表格 */
    .comparison-table {
        width: 100%;
        border-collapse: separate;
        border-spacing: 0;
        background: rgba(30, 41, 59, 0.6);
        border-radius: 12px;
        overflow: hidden;
        border: 1px solid var(--divider);
    }
    .comparison-table th {
        background: rgba(15, 23, 42, 0.6);
        padding: 20px 24px;
        font-weight: 700;
        color: #f8fafc;
        font-size: 1.05rem;
        border-bottom: 1px solid var(--divider);
    }
    .comparison-table td {
        padding: 18px 24px;
        border-bottom: 1px solid var(--divider);
        color: #cbd5e1;
        font-size: 0.95rem;
    }
    .comparison-table tr:last-child td { border-bottom: none; }
    .comparison-table .highlight-col {
        background: rgba(34, 211, 238, 0.04);
    }
    .comparison-table .check-icon { color: var(--primary); margin-right: 8px; }
    .comparison-table .times-icon { color: #64748b; margin-right: 8px; }

    /* 特色卡片 */
    .feature-card {
        background: rgba(30, 41, 59, 0.5);
        border: 1px solid var(--divider);
        border-radius: 12px;
        padding: 32px 24px;
        transition: all 0.3s ease;
        height: 100%;
        opacity: 0;
        transform: translateY(30px);
    }
    .feature-card.visible {
        opacity: 1;
        transform: translateY(0);
    }
    .feature-card:hover {
        border-color: var(--primary);
        background: rgba(34, 211, 238, 0.04);
        transform: translateY(-4px);
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    }
    .feature-icon {
        width: 56px;
        height: 56px;
        background: rgba(34, 211, 238, 0.1);
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.6rem;
        color: var(--primary);
        margin-bottom: 20px;
        border: 1px solid rgba(34, 211, 238, 0.15);
    }
    .feature-title {
        font-size: 1.15rem;
        font-weight: 700;
        color: #f8fafc;
        margin-bottom: 10px;
    }
    .feature-text {
        color: #94a3b8;
        font-size: 0.92rem;
        line-height: 1.7;
    }

    /* 手风琴 */
    .accordion-custom {
        border-radius: 12px;
        overflow: hidden;
    }
    .accordion-item-custom {
        background: rgba(30, 41, 59, 0.4);
        border: 1px solid var(--divider);
        border-radius: 10px !important;
        margin-bottom: 12px;
        overflow: hidden;
        transition: all 0.3s ease;
    }
    .accordion-item-custom.active {
        border-color: var(--primary);
    }
    .accordion-header-custom {
        padding: 20px 24px;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-weight: 600;
        color: #f8fafc;
        font-size: 1.05rem;
        background: rgba(30, 41, 59, 0.6);
        transition: all 0.3s ease;
    }
    .accordion-header-custom:hover {
        color: var(--primary);
    }
    .accordion-header-custom i {
        transition: transform 0.3s ease;
        color: var(--primary);
        font-size: 0.9rem;
    }
    .accordion-item-custom.active .accordion-header-custom i {
        transform: rotate(180deg);
    }
    .accordion-body-custom {
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, padding 0.3s ease;
        color: #94a3b8;
        font-size: 0.95rem;
        line-height: 1.8;
    }
    .accordion-item-custom.active .accordion-body-custom {
        max-height: 400px;
        padding: 0 24px 20px;
    }

    /* CTA 区块 */
    .cta-box {
        background: linear-gradient(135deg, rgba(34, 211, 238, 0.1) 0%, rgba(251, 146, 60, 0.08) 100%);
        border: 1px solid rgba(34, 211, 238, 0.2);
        border-radius: 16px;
        padding: 60px 48px;
        text-align: center;
    }
    .cta-box h2 {
        font-size: 2rem;
        font-weight: 800;
        color: #f8fafc;
        margin-bottom: 16px;
    }
    .cta-box p {
        color: #94a3b8;
        max-width: 500px;
        margin: 0 auto 32px;
    }

    /* 友情链接 */
    .friend-links {
        padding: 40px 0;
        border-top: 1px solid var(--divider);
    }
    .friend-links h3 {
        font-size: 0.9rem;
        color: #64748b;
        font-weight: 600;
        margin-bottom: 12px;
        text-transform: uppercase;
        letter-spacing: 0.06em;
    }
    .friend-links a {
        color: #64748b;
        text-decoration: none;
        font-size: 0.9rem;
        margin: 0 16px 8px 0;
        transition: color 0.2s;
    }
    .friend-links a:hover { color: var(--primary); }

    /* 页脚 */
    footer {
        background: rgba(15, 23, 42, 0.8);
        border-top: 1px solid var(--divider);
        padding: 32px 0;
    }
    .footer-text {
        color: #64748b;
        font-size: 0.9rem;
    }
    .footer-brand {
        font-weight: 800;
        font-size: 1.2rem;
        color: #e2e8f0;
    }

    /* 海报卡片 */
    .poster-card {
        border-radius: 12px;
        overflow: hidden;
        border: 1px solid var(--divider);
        background: rgba(30, 41, 59, 0.4);
        transition: all 0.3s ease;
        opacity: 0;
        transform: translateY(30px);
    }
    .poster-card.visible {
        opacity: 1;
        transform: translateY(0);
    }
    .poster-card:hover {
        transform: translateY(-6px) scale(1.02);
        border-color: rgba(34, 211, 238, 0.4);
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    }
    .poster-img {
        width: 100%;
        aspect-ratio: 3/4;
        background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(251, 146, 60, 0.15));
        position: relative;
        overflow: hidden;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .poster-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: all 0.4s ease;
    }
    .play-overlay {
        position: absolute;
        inset: 0;
        background: rgba(15, 23, 42, 0.6);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .poster-card:hover .play-overlay {
        opacity: 1;
    }
    .play-btn {
        width: 56px;
        height: 56px;
        background: var(--primary);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #0f172a;
        font-size: 1.2rem;
        box-shadow: 0 4px 20px rgba(34, 211, 238, 0.5);
        transform: scale(0.8);
        transition: all 0.3s ease;
    }
    .poster-card:hover .play-btn {
        transform: scale(1);
    }
    .poster-title {
        padding: 16px 20px;
        font-weight: 600;
        color: #e2e8f0;
        font-size: 0.95rem;
    }
    .poster-genre {
        padding: 0 20px 16px;
        color: #64748b;
        font-size: 0.8rem;
    }

    /* 延迟出现 */
    .delay-1 { transition-delay: 0.1s; }
    .delay-2 { transition-delay: 0.2s; }
    .delay-3 { transition-delay: 0.3s; }
    .delay-4 { transition-delay: 0.4s; }
    .delay-5 { transition-delay: 0.5s; }
    .delay-6 { transition-delay: 0.6s; }

    @media (max-width: 768px) {
        section { padding: 48px 0; }
        .hero-title { font-size: 2.4rem; }
        .hero-stat-number { font-size: 2.4rem; }
        .hero-stats { gap: 24px; }
        .comparison-table { font-size: 0.85rem; }
        .comparison-table th, .comparison-table td { padding: 12px 16px; }
        .cta-box { padding: 40px 24px; }
    }

/* --- 子页面追加 --- */
/* 本页专属微调样式 */
        .about-hero {
            padding: 100px 0 60px;
            background: radial-gradient(ellipse at 30% 20%, rgba(34, 211, 238, 0.08) 0%, transparent 60%);
        }
.about-section {
            padding: 50px 0;
            border-bottom: 1px solid var(--divider);
        }
.about-section:last-child {
            border-bottom: none;
        }
.about-card {
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid var(--divider);
            border-radius: var(--radius-sm);
            padding: 30px;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.about-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-subtle);
        }
.about-card-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
.about-timeline {
            position: relative;
            padding-left: 30px;
        }
.about-timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
        }
.timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--bg-dark);
        }
.timeline-year {
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 5px;
        }
.about-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
.about-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--divider);
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
.about-list li:last-child {
            border-bottom: none;
        }
.about-list i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 0.9rem;
        }
.about-quote {
            border-left: 3px solid var(--accent);
            padding: 15px 20px;
            margin: 30px 0;
            background: rgba(251, 146, 60, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
        }

/* --- 子页面追加 --- */
/* 奶牛漫画 免责声明 页专属微调 */
        .disclaimer-hero {
            padding: 4rem 0 2rem;
            border-bottom: 1px solid var(--divider);
        }
.disclaimer-hero .hero-title {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            color: var(--text-light);
        }
.disclaimer-section {
            padding: 2.5rem 0;
            border-bottom: 1px solid var(--divider);
        }
.disclaimer-section:last-of-type {
            border-bottom: none;
        }
.disclaimer-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 1.25rem;
            display: flex;
            align-items: center;
            gap: .5rem;
        }
.disclaimer-section h2 i {
            color: var(--accent);
            font-size: 1.4rem;
        }
.disclaimer-section p, .disclaimer-section li {
            color: var(--text-light);
            line-height: 1.8;
            opacity: .9;
        }
.disclaimer-list {
            padding-left: 1.2rem;
            list-style: none;
        }
.disclaimer-list li {
            position: relative;
            padding-left: 1.5rem;
            margin-bottom: .6rem;
        }
.disclaimer-list li::before {
            content: "\f061";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: .2rem;
            color: var(--accent);
            font-size: .8rem;
        }
.contact-box {
            background: rgba(34, 211, 238, 0.05);
            border-left: 4px solid var(--primary);
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-sm);
            margin-top: 1.5rem;
        }
.contact-box a {
            color: var(--primary);
            word-break: break-word;
            text-decoration: underline;
            text-underline-offset: 4px;
        }
.badge-custom {
            display: inline-block;
            background: rgba(251, 146, 60, 0.15);
            color: var(--accent);
            font-size: .8rem;
            font-weight: 600;
            padding: .2rem .9rem;
            border-radius: 30px;
            letter-spacing: .3px;
            border: 1px solid rgba(251, 146, 60, .3);
            margin-right: .5rem;
        }
/* 覆盖 Bootstrap 默认白底（若意外使用组件） */
        .card, .card-body, .form-control, .list-group-item, .accordion-item, .accordion-button, .accordion-body {
            background: transparent !important;
            color: var(--text-light) !important;
        }

/* --- 子页面追加 --- */
/* 隐私条款卡片：与站点深色玻璃风格融合 */
        .privacy-card {
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(4px);
            border: 1px solid var(--divider);
            border-radius: 16px;
            padding: 1.8rem 1.8rem;
            box-shadow: var(--shadow-subtle);
            transition: transform 0.2s ease, border-color 0.2s;
        }
.privacy-card:hover {
            border-color: rgba(34, 211, 238, 0.4);
        }
.privacy-card h3 {
            font-size: 1.4rem;
            font-weight: 600;
            letter-spacing: -0.01em;
            color: var(--primary);
            margin-bottom: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
.privacy-card h3 i {
            font-size: 1.2rem;
            color: var(--accent);
        }
.privacy-card p, .privacy-card li {
            color: var(--text-light);
            font-weight: 350;
            line-height: 1.7;
            opacity: 0.92;
        }
.privacy-card ul {
            padding-left: 1.2rem;
            list-style-type: none;
        }
.privacy-card ul li::before {
            content: "·";
            color: var(--accent);
            font-weight: 900;
            display: inline-block;
            width: 1.2rem;
            margin-left: -1.2rem;
        }
.privacy-card strong {
            color: #fff;
            font-weight: 500;
        }
.privacy-divider {
            height: 1px;
            background: var(--divider);
            margin: 2.2rem 0;
        }
/* 小标题微调 */
        .section-title-sm {
            color: var(--primary);
            font-size: 1.1rem;
            letter-spacing: 0.3px;
            font-weight: 500;
            text-transform: uppercase;
        }
/* 列表排版 */
        .privacy-list {
            margin-top: 0.8rem;
        }
.privacy-list li {
            margin-bottom: 0.65rem;
        }
/* 页脚社交图标沿用现有风格 */
        .footer-social a {
            color: var(--text-light);
            margin-right: 1rem;
            opacity: 0.8;
            transition: 0.2s;
        }
.footer-social a:hover { opacity: 1; color: var(--primary); }