:root {
    --primary: #22d3ee;
    --accent: #fb923c;
    --bg: #0f172a;
    --text: #e2e8f0;
    --text-dim: #94a3b8;
    --border: #1e293b;
    --border-light: #334155;
    --card-bg: rgba(30, 41, 59, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, .font-serif {
    font-family: 'Source Han Serif SC', 'Noto Serif SC', 'Songti SC', Georgia, serif;
    font-weight: 700;
}

::selection {
    background: rgba(34, 211, 238, 0.3);
    color: #fff;
}

/* 渐变光晕背景 */
.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.glow-bg::before,
.glow-bg::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.25;
}

.glow-bg::before {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    right: -100px;
}

.glow-bg::after {
    width: 500px;
    height: 500px;
    background: var(--accent);
    bottom: -150px;
    left: -150px;
    opacity: 0.15;
}

/* 导航栏 */
.navbar {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
    z-index: 1000;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.9);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar-brand {
    font-family: 'Source Han Serif SC', 'Noto Serif SC', serif;
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--text) !important;
    letter-spacing: 1px;
}

.navbar-brand i {
    color: var(--primary);
    margin-right: 8px;
}

.navbar-toggler {
    border: 1px solid var(--border-light);
    color: var(--text);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(226, 232, 240, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.nav-link {
    color: var(--text-dim) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary) !important;
}

/* Hero 区块 */
.hero-section {
    position: relative;
    padding: 120px 0 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-title .highlight {
    color: var(--primary);
    position: relative;
    display: inline-block;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 8px;
    background: rgba(34, 211, 238, 0.2);
    border-radius: 2px;
    z-index: -1;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-dim);
    margin-bottom: 2.5rem;
    max-width: 600px;
    line-height: 1.8;
}

.hero-buttons .btn {
    padding: 12px 32px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary-custom {
    background: var(--primary);
    color: #0f172a;
    margin-right: 12px;
}

.btn-primary-custom:hover {
    background: #0ea5c4;
    color: #0f172a;
    transform: translateY(-2px);
}

.btn-outline-custom {
    background: transparent;
    border: 1px solid var(--border-light) !important;
    color: var(--text);
}

.btn-outline-custom:hover {
    border-color: var(--primary) !important;
    color: var(--primary);
    transform: translateY(-2px);
}

/* 通用区块 */
.section {
    padding: 80px 0;
    border-top: 1px solid var(--border);
}

.section-tag {
    display: inline-block;
    padding: 4px 16px;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-dim);
    margin-bottom: 40px;
    max-width: 700px;
}

/* 长文介绍 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    color: var(--text-dim);
    margin-bottom: 20px;
    line-height: 1.9;
}

.about-text p strong {
    color: var(--text);
}

.step-list {
    counter-reset: step;
    padding: 0;
    list-style: none;
}

.step-list li {
    counter-increment: step;
    position: relative;
    padding: 16px 0 16px 48px;
    border-bottom: 1px solid var(--border);
}

.step-list li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 16px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--primary);
    border-radius: 50%;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
    background: rgba(34, 211, 238, 0.08);
}

.step-list li h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.step-list li p {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* 对比表格 */
.compare-wrapper {
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.compare-row {
    display: grid;
    grid-template-columns: 1fr 2fr 2fr;
    border-bottom: 1px solid var(--border);
    transition: background 0.3s ease;
}

.compare-row:last-child {
    border-bottom: none;
}

.compare-row:hover {
    background: rgba(34, 211, 238, 0.05);
}

.compare-row.header {
    background: rgba(30, 41, 59, 0.5);
    font-weight: 700;
    color: var(--primary);
}

.compare-item {
    padding: 16px 20px;
    border-right: 1px solid var(--border);
    font-size: 0.95rem;
}

.compare-item:last-child {
    border-right: none;
}

/* FAQ */
.faq-accordion .accordion-item {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px !important;
    margin-bottom: 12px;
    overflow: hidden;
}

.accordion-button {
    background: transparent !important;
    color: var(--text) !important;
    font-weight: 600;
    font-family: 'Source Han Serif SC', 'Noto Serif SC', serif;
    font-size: 1.05rem;
    padding: 20px;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--primary);
}

.accordion-button:not(.collapsed) {
    color: var(--primary) !important;
}

.accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2322d3ee'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.accordion-body {
    color: var(--text-dim);
    padding: 0 20px 20px;
}

/* 特色卡片 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 24px;
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
    cursor: default;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: scale(1.02);
    border-color: var(--primary);
    background: rgba(34, 211, 238, 0.05);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card .icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    margin-bottom: 16px;
    color: var(--primary);
    font-size: 1.2rem;
}

.feature-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-dim);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 0;
}

/* 特色大卡片（Bento网格） */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.bento-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: transform 0.3s ease, border-color 0.3s ease;
    position: relative;
    overflow: hidden;
}

.bento-card:hover {
    transform: scale(1.02);
    border-color: var(--accent);
}

.bento-card.large {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-card.wide {
    grid-column: span 2;
}

.bento-card.tall {
    grid-row: span 2;
}

.bento-card .bento-icon {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 16px;
}

.bento-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.bento-card p {
    color: var(--text-dim);
    font-size: 0.9rem;
    line-height: 1.8;
}

.bento-card .image-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, rgba(34,211,238,0.1), rgba(251,146,60,0.1));
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: 0.8rem;
    background-size: cover;
    background-position: center;
}

/* CTA */
.cta-section {
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--accent);
    filter: blur(150px);
    opacity: 0.15;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.cta-title {
    font-size: 2.8rem;
    font-weight: 900;
    margin-bottom: 20px;
}

.cta-desc {
    color: var(--text-dim);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* 友情链接 */
.friend-links {
    border-top: 1px solid var(--border);
    padding: 60px 0 40px;
}

.friend-links h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--text-dim);
}

.friend-links .links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.85rem;
}

/* 页脚 */
.footer {
    background: rgba(15, 23, 42, 0.9);
    border-top: 1px solid var(--border);
    padding: 40px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    font-family: 'Source Han Serif SC', 'Noto Serif SC', serif;
    font-size: 1.3rem;
    font-weight: 800;
}

.footer-brand i {
    color: var(--primary);
    margin-right: 8px;
}

.footer-links a {
    color: var(--text-dim);
    text-decoration: none;
    margin-left: 24px;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--text-dim);
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

/* 图片懒加载 */
.lazy-img {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.lazy-img.loaded {
    opacity: 1;
}

.lazy-placeholder {
    background: linear-gradient(135deg, rgba(30,41,59,0.6), rgba(51,65,85,0.6));
    position: relative;
    overflow: hidden;
}

.lazy-placeholder::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    100% {
        left: 100%;
    }
}

/* 响应式 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .bento-grid {
        grid-template-columns: 1fr;
    }

    .bento-card.large,
    .bento-card.wide,
    .bento-card.tall {
        grid-column: span 1;
        grid-row: span 1;
    }

    .compare-row {
        grid-template-columns: 1fr;
    }

    .compare-item {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .compare-item:last-child {
        border-bottom: none;
    }

    .footer-links a {
        margin-left: 0;
        margin-right: 16px;
    }

    .hero-section {
        padding: 80px 0 60px;
    }
}

/* --- 子页面追加 --- */
/* 画廊页专属微调 —— 不另造体系,只是补齐间距和网格细节 */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 1.8rem;
            margin-top: 2.5rem;
        }
.gallery-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 1.25rem;
            overflow: hidden;
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
            backdrop-filter: blur(4px);
        }
.gallery-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 12px 30px -10px rgba(34, 211, 238, 0.25);
        }
.gallery-card img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid var(--border-light);
        }
.gallery-card-body {
            padding: 1.2rem 1.2rem 1.5rem;
        }
.gallery-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            margin-bottom: .3rem;
            display: flex;
            align-items: center;
            gap: .4rem;
        }
.gallery-card-title i {
            color: var(--accent);
            font-size: 1rem;
        }
.gallery-card-desc {
            color: var(--text-dim);
            font-size: .9rem;
            line-height: 1.5;
            margin-bottom: .8rem;
        }
.gallery-tag {
            display: inline-block;
            background: rgba(34, 211, 238, 0.12);
            color: var(--primary);
            border-radius: 30px;
            padding: .2rem .8rem;
            font-size: .75rem;
            font-weight: 500;
            border: 1px solid rgba(34, 211, 238, 0.2);
            margin-right: .4rem;
            margin-bottom: .3rem;
        }
.section-gallery-head {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: flex-end;
            gap: 1rem;
            margin-bottom: 1rem;
        }
.gallery-feature-note {
            background: rgba(251, 146, 60, 0.06);
            border-left: 3px solid var(--accent);
            padding: 1rem 1.5rem;
            border-radius: 0.75rem;
            color: var(--text-dim);
            font-size: .95rem;
            margin-top: 2.5rem;
        }
/* 保证 bootstrap 组件不影响整体配色(万一用到) */
        .card, .card-body, .card-title, .card-text { background: transparent; color: var(--text); border: none; }

/* --- 子页面追加 --- */
/* 覆盖 Bootstrap 组件白底黑字问题 */
        .navbar, .navbar-nav, .nav-link, .navbar-brand {
            background: transparent !important;
            color: var(--text) !important;
        }
.nav-link.active {
            color: var(--primary) !important;
            border-bottom: 2px solid var(--primary);
        }
/* 确保卡片等组件透明/暗色 */
        .card, .card-body, .card-title, .card-text, .card-header, .card-footer {
            background: transparent !important;
            color: var(--text) !important;
            border-color: var(--border) !important;
        }
.list-group-item {
            background: transparent !important;
            color: var(--text) !important;
            border-color: var(--border) !important;
        }
.accordion-item, .accordion-button, .accordion-body {
            background: transparent !important;
            color: var(--text) !important;
            border-color: var(--border) !important;
        }
.form-control, .form-select {
            background: rgba(0,0,0,0.35) !important;
            color: var(--text) !important;
            border-color: var(--border) !important;
        }
.form-control::placeholder {
            color: rgba(255,255,255,0.45) !important;
        }
.table {
            color: var(--text) !important;
            --bs-table-bg: transparent !important;
            border-color: var(--border) !important;
        }
.modal-content, .modal-header, .modal-body {
            background: var(--bg) !important;
            color: var(--text) !important;
            border-color: var(--border) !important;
        }
.dropdown-menu, .dropdown-item {
            background: var(--bg) !important;
            color: var(--text) !important;
            border-color: var(--border) !important;
        }
.btn-light {
            background: var(--border) !important;
            color: var(--text) !important;
            border-color: var(--border-light) !important;
        }
/* 本页专用样式 */
        .about-hero {
            padding: 5rem 0 3rem;
            background: radial-gradient(circle at 20% 30%, rgba(34,211,238,0.08), transparent 60%);
        }
.about-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }
.about-hero h1 span {
            color: var(--primary);
        }
.about-lead {
            color: var(--text-dim);
            font-size: 1.2rem;
            max-width: 720px;
            margin: 0 auto 2rem;
        }
.about-feature-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 2rem 1.5rem;
            backdrop-filter: blur(4px);
            transition: border-color 0.3s, transform 0.3s;
        }
.about-feature-item:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
        }
.about-feature-item i {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
.about-feature-item h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--text);
        }
.about-feature-item p {
            color: var(--text-dim);
            line-height: 1.7;
        }
.about-stats {
            background: rgba(15,23,42,0.6);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 2.5rem 1rem;
            margin: 3rem 0;
            text-align: center;
        }
.about-stats .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }
.about-stats .stat-label {
            color: var(--text-dim);
            margin-top: 0.25rem;
        }
.about-quote {
            border-left: 4px solid var(--accent);
            background: rgba(251,146,60,0.05);
            padding: 1.5rem 2rem;
            border-radius: 0 16px 16px 0;
            margin: 2rem 0;
        }
.about-quote p {
            font-size: 1.2rem;
            font-style: italic;
            color: var(--text);
        }
.about-quote cite {
            color: var(--accent);
            font-style: normal;
            font-weight: 600;
        }

/* --- 子页面追加 --- */
/* 注册页专属样式 */
        .signup-hero {
            padding: 80px 0 40px;
            position: relative;
        }
.signup-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 40px;
            backdrop-filter: blur(10px);
            max-width: 520px;
            margin: 0 auto;
        }
.form-control {
            background: rgba(0,0,0,.35);
            border: 1px solid var(--border-light);
            color: var(--text);
            padding: 12px 16px;
            border-radius: 8px;
        }
.form-control:focus {
            background: rgba(0,0,0,.5);
            border-color: var(--primary);
            box-shadow: 0 0 0 0.2rem rgba(34, 211, 238, 0.15);
            color: var(--text);
        }
.form-label {
            color: var(--text);
            font-weight: 500;
            margin-bottom: 8px;
        }
.btn-signup {
            background: linear-gradient(135deg, var(--primary), #0ea5e9);
            border: none;
            color: #fff;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: 8px;
            width: 100%;
            transition: all .3s ease;
        }
.btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(34, 211, 238, 0.3);
            color: #fff;
        }
.benefit-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 24px;
            transition: all .3s ease;
            height: 100%;
        }
.benefit-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
        }
.benefit-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
.signup-note {
            color: var(--text-dim);
            font-size: 0.9rem;
            text-align: center;
            margin-top: 16px;
        }
.login-link {
            color: var(--primary);
            text-decoration: none;
        }
.login-link:hover {
            text-decoration: underline;
        }
.agreement {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            color: var(--text-dim);
            font-size: 0.85rem;
            margin-top: 16px;
        }
.agreement a {
            color: var(--primary);
            text-decoration: none;
        }
.agreement a:hover {
            text-decoration: underline;
        }
.agreement input {
            margin-top: 4px;
            accent-color: var(--primary);
        }
.navbar .nav-link {
            color: var(--text);
        }
.navbar .nav-link:hover {
            color: var(--primary);
        }
.footer-link {
            color: var(--text-dim);
            text-decoration: none;
        }
.footer-link:hover {
            color: var(--primary);
        }

/* --- 子页面追加 --- */
/* 本页专属微调 — 只补充极少量页面特有样式，尽量沿用全站类 */
        .disclaimer-hero {
            padding: 5rem 0 2rem 0;
        }
.disclaimer-title {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.02em;
        }
.section-block {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 2rem 2rem 1.8rem;
            margin-bottom: 2rem;
            backdrop-filter: blur(4px);
        }
.section-block h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            border-left: 4px solid var(--accent);
            padding-left: 1rem;
            margin-bottom: 1.2rem;
        }
.section-block h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text);
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
.section-block p, .section-block li {
            color: var(--text-dim);
            line-height: 1.7;
            font-size: 0.98rem;
        }
.section-block ul, .section-block ol {
            padding-left: 1.2rem;
            margin-bottom: 1rem;
        }
.section-block li {
            margin-bottom: 0.4rem;
        }
.section-block strong {
            color: var(--text);
        }
.notice-box {
            background: rgba(251, 146, 60, 0.08);
            border: 1px dashed var(--accent);
            border-radius: 16px;
            padding: 1.2rem 1.5rem;
            margin: 1.8rem 0 0.8rem;
            color: var(--text-dim);
        }
.notice-box i {
            color: var(--accent);
            margin-right: 8px;
        }

/* --- 子页面追加 --- */
/* 页面专属微调 —— 隐私政策页特有 */
        .privacy-block {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 2rem;
            margin-bottom: 1.8rem;
            transition: border-color .2s;
        }
.privacy-block:hover {
            border-color: var(--primary);
        }
.privacy-block h2 {
            color: var(--primary);
            font-size: 1.55rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
.privacy-block h2 i {
            color: var(--accent);
            font-size: 1.3rem;
        }
.privacy-block p, .privacy-block li {
            color: var(--text-dim);
            line-height: 1.8;
            font-size: 0.98rem;
        }
.privacy-block strong {
            color: var(--text);
            font-weight: 600;
        }
.privacy-list {
            padding-left: 1.4rem;
            list-style-type: none;
        }
.privacy-list li {
            margin-bottom: 0.7rem;
            position: relative;
            padding-left: 1.6rem;
        }
.privacy-list li::before {
            content: "\f058";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--primary);
            position: absolute;
            left: 0;
            top: 0.2rem;
            font-size: 1rem;
        }
.last-updated {
            color: var(--text-dim);
            font-size: 0.9rem;
            border-bottom: 1px dashed var(--border-light);
            padding-bottom: 1rem;
            margin-bottom: 2.2rem;
            display: inline-block;
        }
.contact-privacy {
            background: rgba(34, 211, 238, 0.06);
            border-left: 3px solid var(--primary);
            padding: 1.5rem 1.8rem;
            border-radius: 0 16px 16px 0;
        }
.contact-privacy a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
.contact-privacy a:hover {
            color: var(--accent);
        }
.privacy-block {
                padding: 1.5rem;
            }
.privacy-block h2 {
                font-size: 1.3rem;
            }

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
        .guide-hero {
            padding: 120px 0 60px;
            text-align: center;
        }
.guide-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }
.guide-hero p {
            color: var(--text-dim);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto 32px;
        }
.guide-section {
            padding: 48px 0;
        }
.guide-section:nth-child(even) {
            background: rgba(30, 41, 59, 0.2);
        }
.guide-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary);
        }
.guide-section h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--text);
        }
.guide-section p {
            color: var(--text-dim);
            line-height: 1.8;
            margin-bottom: 16px;
        }
.guide-section ul, .guide-section ol {
            color: var(--text-dim);
            line-height: 2;
            padding-left: 20px;
            margin-bottom: 16px;
        }
.guide-section li {
            margin-bottom: 8px;
        }
.guide-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px;
            height: 100%;
            transition: all 0.3s ease;
        }
.guide-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(34, 211, 238, 0.1);
        }
.guide-card .icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
.guide-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
.guide-card p {
            font-size: 0.9rem;
            color: var(--text-dim);
            line-height: 1.6;
        }
.tip-box {
            background: rgba(251, 146, 60, 0.08);
            border-left: 3px solid var(--accent);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
.tip-box p {
            margin-bottom: 0;
            color: var(--text);
        }
.step-badge {
            display: inline-block;
            width: 28px;
            height: 28px;
            line-height: 28px;
            text-align: center;
            border-radius: 50%;
            background: var(--primary);
            color: #0f172a;
            font-weight: 700;
            font-size: 0.9rem;
            margin-right: 8px;
        }
.table-custom {
            width: 100%;
            color: var(--text-dim);
            border-collapse: separate;
            border-spacing: 0 8px;
        }
.table-custom th {
            color: var(--text);
            font-weight: 600;
            padding: 12px 16px;
            background: rgba(30, 41, 59, 0.6);
            border: 1px solid var(--border);
        }
.table-custom td {
            padding: 12px 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
        }
.table-custom tr td:first-child {
            border-radius: 8px 0 0 8px;
        }
.table-custom tr td:last-child {
            border-radius: 0 8px 8px 0;
        }
.guide-hero h1 {
                font-size: 2rem;
            }
.guide-hero {
                padding: 100px 0 40px;
            }

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