:root {
    --primary: #38bdf8;
    --accent: #a78bfa;
    --bg: #0f172a;
    --text: #e2e8f0;
    --card-bg: rgba(255,255,255,0.03);
    --border-color: rgba(226,232,240,0.15);
    --secondary-text: #94a3b8;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 400;
    line-height: 1.7;
    letter-spacing: 0.01em;
    overflow-x: hidden;
}

/* 点阵背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, rgba(56,189,248,0.12) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
    z-index: 0;
}

/* 细网格线背景 */
.grid-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(148,163,184,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,163,184,0.04) 1px, transparent 1px);
    background-size: 64px 64px;
    pointer-events: none;
    z-index: 0;
}

#app {
    position: relative;
    z-index: 1;
}

/* 导航栏 */
.navbar {
    background: rgba(15,23,42,0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.8rem 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
}

.navbar.scrolled {
    background: rgba(15,23,42,0.92);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--text) !important;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    color: var(--primary);
    font-size: 1.8rem;
}

.navbar-brand span {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    color: var(--secondary-text) !important;
    font-weight: 500;
    margin: 0 0.4rem;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 60%;
}

.navbar-toggler {
    border: 1px solid var(--border-color) !important;
    color: var(--text) !important;
    padding: 0.5rem 0.8rem;
}

/* Hero区域 */
.hero-section {
    padding: 8rem 0 6rem;
    position: relative;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    color: var(--text);
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--secondary-text);
    max-width: 600px;
    margin: 0 auto 3rem;
    font-weight: 300;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn-custom {
    padding: 1rem 2.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
    display: inline-block;
    text-decoration: none;
}

.btn-custom::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-custom:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary);
    color: #0f172a;
    border-color: var(--primary);
}

.btn-primary:hover {
    background: #22d3ee;
    border-color: #22d3ee;
    color: #0f172a;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border-color: var(--border-color);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* 区块通用样式 */
.section {
    padding: 6rem 0;
}

.section-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--primary);
    margin-bottom: 1rem;
    display: block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    color: var(--secondary-text);
    font-size: 1.1rem;
    font-weight: 300;
    max-width: 700px;
    margin-bottom: 3rem;
}

/* Bento网格布局 */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(120px, auto);
    gap: 1rem;
}

.bento-item {
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    background: var(--card-bg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.bento-item:hover {
    border-color: var(--primary);
    background: rgba(56,189,248,0.05);
}

.bento-large {
    grid-column: span 7;
    grid-row: span 2;
}

.bento-medium {
    grid-column: span 5;
}

.bento-small {
    grid-column: span 4;
}

.bento-wide {
    grid-column: span 12;
}

/* 对比表格 */
.comparison-section {
    padding: 5rem 0;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 1.2rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: rgba(56,189,248,0.05);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
}

.comparison-table td {
    color: var(--secondary-text);
    font-weight: 300;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table .highlight {
    color: var(--primary);
    font-weight: 500;
}

.comparison-table .icon-check {
    color: var(--primary);
    margin-right: 0.5rem;
}

.comparison-table .icon-x {
    color: var(--accent);
    margin-right: 0.5rem;
}

/* 特色区块 */
.features-section {
    padding: 5rem 0;
}

.feature-card {
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    background: var(--card-bg);
    transition: all 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
    border: 1px solid rgba(56,189,248,0.3);
}

.feature-title {
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.feature-desc {
    color: var(--secondary-text);
    font-weight: 300;
    font-size: 0.95rem;
}

/* 编号清单 */
.steps-list {
    counter-reset: step;
    display: grid;
    gap: 2rem;
}

.step-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    position: relative;
}

.step-number {
    counter-increment: step;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border: 1px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--primary);
    background: rgba(56,189,248,0.05);
}

.step-number::before {
    content: counter(step, decimal-leading-zero);
}

.step-content {
    flex: 1;
}

.step-title {
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.step-desc {
    color: var(--secondary-text);
    font-weight: 300;
    line-height: 1.8;
}

/* FAQ样式 */
.faq-section {
    padding: 5rem 0;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    margin-bottom: 1rem;
    overflow: hidden;
    background: var(--card-bg);
}

.faq-question {
    padding: 1.5rem 2rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--primary);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 2rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    color: var(--secondary-text);
    font-weight: 300;
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding-bottom: 1.5rem;
}

/* CTA区块 */
.cta-section {
    padding: 5rem 0;
    text-align: center;
}

.cta-box {
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(56,189,248,0.05), rgba(167,139,250,0.05));
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.cta-subtitle {
    color: var(--secondary-text);
    font-size: 1.1rem;
    font-weight: 300;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 友情链接 */
.friend-links-section {
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
}

.friend-links-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--secondary-text);
    margin-bottom: 1.5rem;
}

/* 页脚 */
.footer {
    background: rgba(15,23,42,0.95);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.footer-links a {
    color: var(--secondary-text);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

.footer-copyright {
    text-align: center;
    color: var(--secondary-text);
    font-size: 0.85rem;
    font-weight: 300;
}

/* 滚动动效 */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式 */
@media (max-width: 991px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .bento-large,
    .bento-medium,
    .bento-small {
        grid-column: span 12;
    }
    
    .section {
        padding: 4rem 0;
    }
}

@media (max-width: 767px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-section {
        padding: 6rem 0 4rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 1rem;
    }
    
    .navbar-collapse {
        background: var(--bg);
        padding: 1rem 0;
        border-top: 1px solid var(--border-color);
    }
}

/* 暗色滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* --- 子页面追加 --- */
/* 页面专属小样式 */
        .about-hero {
            position: relative;
            padding: 120px 0 80px;
            background: radial-gradient(ellipse at 20% 50%, rgba(56, 189, 248, 0.12) 0%, transparent 50%), radial-gradient(ellipse at 80% 20%, rgba(167, 139, 250, 0.08) 0%, transparent 50%);
        }
.about-hero .hero-title {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 1.5rem;
        }
.about-hero .hero-title span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
.about-hero .hero-subtitle {
            max-width: 700px;
            margin: 0 auto 2rem;
            color: var(--secondary-text);
            font-size: 1.15rem;
            line-height: 1.8;
        }
.about-section {
            padding: 80px 0;
        }
.about-section .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.2);
            color: var(--primary);
            padding: 0.4rem 1.2rem;
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 1.2rem;
        }
.about-section .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            margin-bottom: 1.5rem;
            line-height: 1.3;
        }
.about-section .section-subtitle {
            color: var(--secondary-text);
            font-size: 1.05rem;
            line-height: 1.8;
            max-width: 800px;
            margin: 0 auto;
        }
.about-text {
            color: var(--text);
            line-height: 1.9;
            font-size: 1rem;
        }
.about-text strong {
            color: var(--primary);
        }
.about-text p {
            margin-bottom: 1.5rem;
        }
.about-text h3 {
            color: var(--text);
            font-size: 1.4rem;
            font-weight: 600;
            margin: 2.5rem 0 1rem;
        }
.about-text h3 i {
            color: var(--accent);
            margin-right: 0.6rem;
        }
.about-text ul {
            padding-left: 1.2rem;
            margin-bottom: 1.5rem;
        }
.about-text ul li {
            margin-bottom: 0.6rem;
            color: var(--text);
            line-height: 1.8;
        }
.about-text ul li::marker {
            color: var(--primary);
        }
.about-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2rem;
            height: 100%;
            transition: all 0.3s ease;
        }
.about-card:hover {
            border-color: rgba(56, 189, 248, 0.3);
            transform: translateY(-4px);
        }
.about-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(167, 139, 250, 0.15));
            color: var(--primary);
        }
.about-card h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.8rem;
            color: var(--text);
        }
.about-card p {
            color: var(--secondary-text);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
.quote-block {
            border-left: 3px solid var(--accent);
            padding: 1.5rem 1.8rem;
            background: rgba(167, 139, 250, 0.05);
            border-radius: 0 16px 16px 0;
            margin: 2rem 0;
        }
.quote-block p {
            font-style: italic;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 0.5rem;
        }
.quote-block cite {
            color: var(--secondary-text);
            font-size: 0.9rem;
            font-style: normal;
        }
.timeline-wrap {
            position: relative;
            padding-left: 2rem;
            margin: 2rem 0;
        }
.timeline-wrap::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 2px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            opacity: 0.3;
        }
.timeline-item {
            position: relative;
            padding-bottom: 2rem;
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: -2rem;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--bg);
            box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.3);
        }
.timeline-item .time {
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 0.3rem;
        }
.timeline-item h4 {
            color: var(--text);
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
.timeline-item p {
            color: var(--secondary-text);
            font-size: 0.95rem;
            line-height: 1.7;
        }
.about-hero {
                padding: 80px 0 50px;
            }
.about-section {
                padding: 50px 0;
            }
.about-card {
                margin-bottom: 1rem;
            }

/* --- 子页面追加 --- */
/* 确保Bootstrap组件配色与深色站点一致 */
        .card, .card-body, .card-header, .card-footer {
            background: var(--card-bg);
            color: var(--text);
            border-color: var(--border-color);
        }
.list-group-item {
            background: transparent;
            color: var(--text);
            border-color: var(--border-color);
        }
.accordion-item, .accordion-button {
            background: var(--card-bg);
            color: var(--text);
            border-color: var(--border-color);
        }
.accordion-button:not(.collapsed) {
            background: rgba(56, 189, 248, 0.1);
            color: var(--primary);
        }
.form-control, .form-select {
            background: rgba(0,0,0,0.3);
            border-color: var(--border-color);
            color: var(--text);
        }
.form-control::placeholder {
            color: rgba(255,255,255,0.5);
        }
/* 片单专属样式 */
        .weekly-hero {
            position: relative;
            border-bottom: 1px solid var(--border-color);
        }
.week-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }
.week-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 1.5rem;
            transition: transform 0.2s ease, border-color 0.2s;
        }
.week-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }
.week-card .tag {
            display: inline-block;
            background: rgba(56, 189, 248, 0.15);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }
.week-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text);
        }
.week-card .meta {
            color: var(--secondary-text);
            font-size: 0.9rem;
            margin-bottom: 1rem;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
.week-card .meta i {
            color: var(--primary);
            width: 16px;
        }
.week-card p {
            color: var(--secondary-text);
            font-size: 0.95rem;
            line-height: 1.6;
        }
.week-card .why-watch {
            margin-top: 1.2rem;
            padding-top: 1rem;
            border-top: 1px dashed var(--border-color);
            font-size: 0.9rem;
            color: var(--text);
        }
.week-card .why-watch strong {
            color: var(--accent);
            font-weight: 600;
        }
.day-badge {
            display: inline-block;
            background: rgba(167, 139, 250, 0.15);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.2rem 0.9rem;
            border-radius: 30px;
            margin-bottom: 1.5rem;
            letter-spacing: 0.5px;
        }
.note-box {
            background: rgba(56, 189, 248, 0.06);
            border-left: 4px solid var(--primary);
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 2rem 0;
        }
.note-box i {
            color: var(--primary);
            margin-right: 0.5rem;
        }

/* --- 子页面追加 --- */
.contact-hero {
            padding: 120px 0 60px;
            position: relative;
            overflow: hidden;
        }
.contact-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(167,139,250,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
.contact-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2rem;
            height: 100%;
            transition: all 0.3s ease;
        }
.contact-card:hover {
            transform: translateY(-4px);
            border-color: rgba(56,189,248,0.4);
            box-shadow: 0 8px 30px rgba(56,189,248,0.1);
        }
.contact-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(56,189,248,0.2), rgba(167,139,250,0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
        }
.contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            padding: 0.6rem 0;
            color: var(--text);
        }
.contact-info-item i {
            color: var(--accent);
            font-size: 1rem;
            margin-top: 0.25rem;
            width: 20px;
        }
.contact-info-item span {
            color: var(--secondary-text);
        }
.contact-form-wrapper {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2.5rem;
        }
.form-label-custom {
            color: var(--text);
            font-weight: 500;
            margin-bottom: 0.5rem;
            display: block;
        }
.form-control-custom {
            background: rgba(0,0,0,0.35);
            border: 1px solid var(--border-color);
            color: var(--text);
            border-radius: 8px;
            padding: 0.75rem 1rem;
            width: 100%;
            transition: all 0.3s ease;
        }
.form-control-custom:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(56,189,248,0.1);
            background: rgba(0,0,0,0.45);
        }
.form-control-custom::placeholder {
            color: rgba(226,232,240,0.4);
        }
.btn-submit {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border: none;
            padding: 0.85rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
        }
.btn-submit:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(56,189,248,0.3);
        }
.faq-item:hover {
            border-color: rgba(167,139,250,0.3);
        }
.contact-divider {
            border: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-color), transparent);
            margin: 3rem 0;
        }
.follow-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            color: var(--secondary-text);
            margin: 0 0.4rem;
            transition: all 0.3s ease;
            font-size: 1.1rem;
        }
.follow-links a:hover {
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 4px 15px rgba(56,189,248,0.2);
        }

/* --- 子页面追加 --- */
/* 确保所有组件背景继承深色主题, 防止 bootstrap 白块 */
    .card, .card-body, .card-header, .card-footer,
    .form-control, .form-select, .accordion-item, .accordion-button,
    .list-group-item, .modal-content, .dropdown-menu {
      background: var(--card-bg);
      color: var(--text);
      border-color: var(--border-color);
    }
.accordion-button::after {
      filter: invert(1) hue-rotate(180deg);
    }
/* 表格深色适配 */
    .table {
      --bs-table-bg: transparent;
      --bs-table-color: var(--text);
      border-color: var(--border-color);
    }
.table th, .table td {
      border-color: var(--border-color);
      background: transparent;
    }
/* 导航栏激活态高亮 (本页为 disclaimer) */
    .nav-link.active {
      color: var(--primary) !important;
      text-shadow: 0 0 8px rgba(56,189,248,0.5);
    }
/* 小标题统一风格 */
    .disclaimer-heading {
      color: var(--primary);
      font-weight: 600;
      letter-spacing: -0.02em;
      margin-top: 2.5rem;
      margin-bottom: 1rem;
      border-left: 4px solid var(--accent);
      padding-left: 1rem;
    }
.disclaimer-list {
      padding-left: 1.5rem;
      list-style-type: disc;
    }
.disclaimer-list li {
      margin-bottom: 0.6rem;
      color: var(--secondary-text);
    }
.highlight-text {
      color: var(--text);
      font-weight: 500;
    }
.legal-meta {
      font-size: 0.9rem;
      color: var(--secondary-text);
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 1rem;
    }

/* --- 子页面追加 --- */
/* 本页专属微调 —— 保持与首页一致的视觉，但针对隐私政策细节做排版优化 */
        .privacy-section {
            background: var(--bg);
            padding: 5rem 0 6rem;
        }
.privacy-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 2rem 2.2rem;
            backdrop-filter: blur(6px);
            transition: all .2s ease;
            margin-bottom: 2rem;
        }
.privacy-card:hover {
            border-color: rgba(56, 189, 248, 0.3);
            box-shadow: 0 8px 30px rgba(0,0,0,0.25);
        }
.privacy-card h3 {
            color: var(--primary);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.7rem;
            letter-spacing: -0.01em;
        }
.privacy-card h3 i {
            color: var(--accent);
            font-size: 1.3rem;
            width: 1.8rem;
            text-align: center;
        }
.privacy-card p, .privacy-card li {
            color: var(--text);
            opacity: 0.88;
            line-height: 1.8;
            font-size: 0.98rem;
            font-weight: 400;
        }
.privacy-card ul {
            padding-left: 1.2rem;
            margin-top: 0.6rem;
        }
.privacy-card ul li {
            list-style-type: disc;
            margin-bottom: 0.45rem;
        }
.privacy-card a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color .2s;
        }
.privacy-card a:hover {
            color: var(--accent);
        }
.privacy-highlight {
            background: rgba(167, 139, 250, 0.06);
            border-left: 4px solid var(--accent);
            padding: 1rem 1.4rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
            font-style: normal;
        }
.privacy-highlight p {
            margin: 0;
        }
.section-title-light {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 1rem;
        }
.section-label-custom {
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 0.8rem;
            display: block;
        }
.text-secondary-custom {
            color: var(--secondary-text) !important;
        }
/* 导航高亮当前页 */
        .navbar .nav-link.active-privacy {
            color: var(--primary) !important;
            font-weight: 600;
            border-bottom: 2px solid var(--accent);
        }
.privacy-card {
                padding: 1.5rem;
            }
.section-title-light {
                font-size: 2rem;
            }