:root {
    --primary: #38bdf8;
    --accent: #a78bfa;
    --bg: #0f172a;
    --text: #e2e8f0;
    --card-bg: #1e293b;
    --border: #334155;
    --muted: #94a3b8;
    --radius: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.25);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.7;
    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;
    border-radius: 0 3px 3px 0;
}

/* 顶部导航 */
.navbar {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
    transition: background 0.3s ease, box-shadow 0.3s ease;
    z-index: 1000;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.navbar-brand {
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--text) !important;
    letter-spacing: 0.5px;
}

.navbar-brand i {
    color: var(--primary);
    margin-right: 6px;
}

.nav-link {
    color: var(--text) !important;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem !important;
    transition: color 0.2s ease;
}

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

.navbar-toggler {
    border-color: var(--border);
    color: var(--text);
}

.navbar-toggler-icon {
    filter: invert(1);
}

/* 左右布局 */
.layout-wrap {
    display: flex;
    min-height: 100vh;
}

/* 左侧固定侧栏 */
.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: rgba(30, 41, 59, 0.5);
    border-right: 1px solid var(--border);
    padding: 2rem 1.5rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    display: none;
}

.sidebar h5 {
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

.sidebar .list-group {
    background: transparent;
}

.sidebar .list-group-item {
    background: transparent;
    border: none;
    padding: 0.5rem 0;
    color: var(--muted);
    font-weight: 500;
    cursor: pointer;
    transition: color 0.2s ease, padding-left 0.2s ease;
    font-size: 0.95rem;
}

.sidebar .list-group-item:hover {
    color: var(--primary);
    padding-left: 8px;
}

.sidebar .list-group-item.active {
    color: var(--primary);
    font-weight: 700;
}

.sidebar .list-group-item i {
    width: 24px;
    color: var(--accent);
}

/* 右侧主内容 */
.main-content {
    flex: 1;
    padding: 2rem 2.5rem 3rem;
    min-width: 0;
}

/* Hero 区 */
.hero-section {
    padding: 3.5rem 0 2.5rem;
    text-align: center;
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50px;
    right: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.15), transparent 70%);
    border-radius: 50%;
    filter: blur(40px);
    z-index: -1;
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 5%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.12), transparent 70%);
    border-radius: 50%;
    filter: blur(50px);
    z-index: -1;
    pointer-events: none;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -1px;
    line-height: 1.2;
    margin-bottom: 1.2rem;
}

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

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--muted);
    max-width: 640px;
    margin: 0 auto 2rem;
    font-weight: 400;
}

/* 关键词标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.tag-cloud span {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid var(--border);
    padding: 0.4rem 1.1rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
    transition: all 0.3s ease;
    animation: floatTag 3s ease-in-out infinite;
}

.tag-cloud span:nth-child(2n) {
    animation-delay: 0.3s;
    background: rgba(56, 189, 248, 0.1);
    border-color: rgba(56, 189, 248, 0.3);
}

.tag-cloud span:nth-child(3n) {
    animation-delay: 0.6s;
    background: rgba(167, 139, 250, 0.1);
    border-color: rgba(167, 139, 250, 0.3);
}

.tag-cloud span:nth-child(4n) {
    animation-delay: 0.9s;
}

.tag-cloud span:nth-child(5n) {
    animation-delay: 1.2s;
}

@keyframes floatTag {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

/* 通用区块标题 */
.section-title {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px;
}

.section-subtitle {
    color: var(--muted);
    font-size: 0.95rem;
    margin-bottom: 2.5rem;
    font-weight: 400;
}

/* 步骤条 */
.steps-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.step-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.8rem 1.5rem;
    text-align: center;
    border: 1px solid var(--border);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: rgba(56, 189, 248, 0.4);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #0f172a;
    font-weight: 800;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}

.step-card h6 {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--muted);
    margin: 0;
}

/* 特色网格卡片 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.8rem 1.5rem;
    border: 1px solid var(--border);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: rgba(167, 139, 250, 0.4);
}

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

.feature-card .icon-wrap {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    background: rgba(56, 189, 248, 0.1);
    color: var(--primary);
    margin-bottom: 1.2rem;
}

.feature-card:nth-child(2n) .icon-wrap {
    background: rgba(167, 139, 250, 0.1);
    color: var(--accent);
}

.feature-card h6 {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.88rem;
    color: var(--muted);
    margin: 0;
}

/* 长文区 */
.longread-section {
    padding: 2rem 0;
    max-width: 800px;
}

.longread-section h2 {
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.longread-section p {
    font-size: 1rem;
    color: var(--muted);
    margin-bottom: 1.2rem;
    line-height: 1.9;
}

.longread-section .lead {
    font-size: 1.15rem;
    color: var(--text);
    font-weight: 500;
    border-left: 3px solid var(--accent);
    padding-left: 1.2rem;
}

.longread-section .highlight-box {
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.longread-section .highlight-box h5 {
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.8rem;
    font-size: 1.05rem;
}

.longread-section .highlight-box ul {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--muted);
}

.longread-section .highlight-box li {
    margin-bottom: 0.5rem;
    font-size: 0.92rem;
}

/* 等宽数据字体 */
.mono-data {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85em;
    color: var(--primary);
}

/* FAQ 手风琴 */
.faq-section {
    max-width: 800px;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(56, 189, 248, 0.3);
}

.faq-item summary {
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.98rem;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--primary);
    font-weight: 400;
    transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item[open] summary {
    background: rgba(56, 189, 248, 0.05);
}

.faq-item .faq-content {
    padding: 0 1.5rem 1.2rem;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.8;
}

/* CTA 区 */
.cta-section {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(167, 139, 250, 0.15));
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    margin: 2.5rem 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.3), transparent 70%);
    border-radius: 50%;
    filter: blur(30px);
}

.cta-section h2 {
    font-size: 2.2rem;
    font-weight: 900;
    margin-bottom: 0.8rem;
}

.cta-section p {
    color: var(--muted);
    margin-bottom: 1.8rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    font-size: 0.95rem;
}

/* 按钮样式 - 渐变流动 */
.btn-gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #0f172a;
    font-weight: 700;
    border: none;
    padding: 0.8rem 2.2rem;
    border-radius: 100px;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(56, 189, 248, 0.3);
    text-decoration: none;
}

.btn-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(56, 189, 248, 0.5);
    color: #0f172a;
}

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

.btn-outline-glow {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 100px;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-outline-glow:hover {
    background: rgba(56, 189, 248, 0.1);
    color: var(--primary);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}

/* 友情链接 */
.friend-links {
    padding: 2.5rem 0 1.5rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

.friend-links .section-title {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.friend-links .link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    align-items: center;
}

.friend-links .link-row a {
    color: var(--muted);
    font-size: 0.88rem;
    text-decoration: none;
    transition: color 0.2s ease;
    position: relative;
}

.friend-links .link-row a:hover {
    color: var(--primary);
}

/* 页脚 */
.site-footer {
    background: rgba(30, 41, 59, 0.6);
    border-top: 1px solid var(--border);
    padding: 1.8rem 2.5rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.88rem;
}

.site-footer .footer-brand {
    color: var(--text);
    font-weight: 800;
    font-size: 1.1rem;
    margin-bottom: 0.4rem;
}

.site-footer a {
    color: var(--muted);
    text-decoration: none;
    margin: 0 0.5rem;
    transition: color 0.2s ease;
    font-size: 0.85rem;
}

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

/* 瀑布流卡片容器 */
.masonry-container {
    columns: 1;
    column-gap: 1.5rem;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .masonry-container {
        columns: 2;
    }
}

@media (min-width: 1200px) {
    .masonry-container {
        columns: 3;
    }
}

.masonry-card {
    break-inside: avoid;
    margin-bottom: 1.5rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: inline-block;
    width: 100%;
}

.masonry-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: rgba(56, 189, 248, 0.3);
}

.masonry-card img {
    width: 100%;
    height: auto;
    display: block;
}

.masonry-card .card-body {
    padding: 1.2rem 1.2rem 1.4rem;
}

.masonry-card .tag-row {
    display: flex;
    gap: 6px;
    margin-bottom: 0.6rem;
    flex-wrap: wrap;
}

.masonry-card .tag-row .tag {
    font-size: 0.7rem;
    font-weight: 600;
    background: rgba(56, 189, 248, 0.1);
    color: var(--primary);
    padding: 0.15rem 0.6rem;
    border-radius: 100px;
    letter-spacing: 0.3px;
}

.masonry-card .card-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.4rem;
    line-height: 1.4;
}

.masonry-card .card-meta {
    font-size: 0.8rem;
    color: var(--muted);
}

/* 响应式 */
@media (max-width: 991px) {
    .sidebar {
        display: none !important;
    }
    
    .main-content {
        padding: 1.5rem 1.2rem 2rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .hero-section {
        padding: 2rem 0 1.5rem;
    }
    
    .longread-section h2 {
        font-size: 1.6rem;
    }
    
    .cta-section h2 {
        font-size: 1.6rem;
    }
}

@media (min-width: 992px) {
    .sidebar {
        display: block;
    }
    
    .navbar-toggler {
        display: none;
    }
    
    .navbar-collapse {
        display: flex !important;
        justify-content: flex-end;
    }
}

/* 移动端导航折叠 */
@media (max-width: 991px) {
    .navbar-collapse {
        background: rgba(15, 23, 42, 0.95);
        border-radius: 12px;
        padding: 1rem;
        margin-top: 0.5rem;
        border: 1px solid var(--border);
    }
    
    .nav-link {
        padding: 0.6rem 1rem !important;
    }
}

/* 列表组侧栏 */
.sidebar .section-nav {
    margin-bottom: 2rem;
}

.sidebar .hot-badge {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #0f172a;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 100px;
    margin-left: 6px;
}

/* 水滴 */
::selection {
    background: rgba(56, 189, 248, 0.3);
    color: var(--text);
}

::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

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

/* --- 子页面追加 --- */
/* 本页专属微调，不破坏全站样式 */
        .about-hero {
            background: linear-gradient(135deg, rgba(56,189,248,0.08) 0%, rgba(167,139,250,0.06) 100%);
            border-bottom: 1px solid var(--border);
        }
.about-section {
            margin-bottom: 3.5rem;
        }
.about-section h2 {
            position: relative;
            padding-bottom: 0.75rem;
            margin-bottom: 1.5rem;
        }
.about-section h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }
.value-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.75rem 1.5rem;
            height: 100%;
            transition: transform 0.25s ease, border-color 0.25s ease;
        }
.value-item:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }
.value-item i {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
.value-item h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
.value-item p {
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
.timeline-list {
            list-style: none;
            padding-left: 0;
        }
.timeline-list li {
            padding: 1rem 1.25rem;
            background: var(--card-bg);
            border-left: 3px solid var(--primary);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin-bottom: 1rem;
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.7;
        }
.timeline-list li strong {
            color: var(--primary);
            margin-right: 0.75rem;
            font-weight: 600;
        }
.data-chip {
            display: inline-block;
            background: rgba(56,189,248,0.1);
            border: 1px solid rgba(56,189,248,0.3);
            color: var(--primary);
            border-radius: 20px;
            padding: 0.25rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            margin: 0.25rem 0.5rem 0.25rem 0;
        }
.data-chip i {
            margin-right: 0.35rem;
            font-size: 0.8rem;
        }
.join-box {
            background: linear-gradient(135deg, rgba(56,189,248,0.06), rgba(167,139,250,0.06));
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 2rem;
            text-align: center;
        }
.join-box h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
.join-box p {
            color: var(--muted);
            max-width: 480px;
            margin: 0 auto 1.5rem auto;
        }
.stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.25rem;
            text-align: center;
            height: 100%;
        }
.stat-card .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
.stat-card .stat-label {
            color: var(--muted);
            font-size: 0.85rem;
            margin-top: 0.35rem;
        }
.navbar .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }
.footer-link {
            color: var(--muted);
            text-decoration: none;
            transition: color 0.2s;
        }
.footer-link:hover {
            color: var(--primary);
        }

/* --- 子页面追加 --- */
/* 本页专属少量样式，自动合并进站点CSS */
        .disclaimer-content {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow);
            color: var(--text);
        }
.disclaimer-content h2 {
            color: var(--primary);
            font-weight: 700;
            font-size: 1.6rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            border-left: 4px solid var(--accent);
            padding-left: 1rem;
        }
.disclaimer-content h2:first-child {
            margin-top: 0;
        }
.disclaimer-content p {
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 1.2rem;
            font-size: 1rem;
        }
.disclaimer-content ul {
            color: var(--text);
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }
.disclaimer-content li {
            margin-bottom: 0.5rem;
            line-height: 1.7;
        }
.disclaimer-content strong {
            color: var(--primary);
        }
.last-updated {
            color: var(--muted);
            font-size: 0.9rem;
            border-top: 1px solid var(--border);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
        }
.alert-note {
            background: rgba(167, 139, 250, 0.1);
            border-left: 4px solid var(--accent);
            padding: 1rem 1.2rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 1.5rem 0;
            color: var(--text);
        }
.disclaimer-content {
                padding: 1.2rem;
            }
.disclaimer-content h2 {
                font-size: 1.3rem;
            }

/* --- 子页面追加 --- */
/* 隐私政策页面专属样式 */
        .privacy-hero {
            padding: 80px 0 40px;
            text-align: center;
        }
.privacy-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 16px;
        }
.privacy-hero p {
            color: var(--muted);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }
.privacy-container {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px 80px;
        }
.privacy-section {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 40px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
        }
.privacy-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.privacy-section h2 i {
            font-size: 1.3rem;
            color: var(--accent);
        }
.privacy-section h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin: 20px 0 12px;
        }
.privacy-section p {
            color: var(--muted);
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 16px;
        }
.privacy-section ul {
            color: var(--muted);
            line-height: 1.9;
            padding-left: 20px;
            margin-bottom: 16px;
        }
.privacy-section ul li {
            margin-bottom: 6px;
            font-size: 0.95rem;
        }
.privacy-section .highlight-box {
            background: rgba(56, 189, 248, 0.08);
            border-left: 3px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 6px 6px 0;
            margin: 16px 0;
        }
.privacy-section .highlight-box p {
            margin-bottom: 0;
            color: var(--text);
        }
.update-date {
            text-align: center;
            color: var(--muted);
            font-size: 0.9rem;
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
        }
.privacy-hero h1 {
                font-size: 2rem;
            }
.privacy-section {
                padding: 24px 20px;
            }
.privacy-container {
                padding: 0 16px 60px;
            }

/* --- 子页面追加 --- */
/* 联系页专属小范围样式,合并进站点CSS */
        .contact-hero { padding: 4rem 0 2.5rem; text-align: center; border-bottom: 1px solid var(--border); }
.contact-hero h1 { font-size: 2.6rem; font-weight: 800; letter-spacing: -0.02em; }
.contact-hero p { color: var(--muted); max-width: 640px; margin: 0.8rem auto 0; }
.contact-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem; margin-top: 2.5rem; }
.contact-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.6rem 1.4rem; transition: transform 0.2s, border-color 0.2s; }
.contact-card:hover { transform: translateY(-4px); border-color: var(--primary); }
.contact-card i { font-size: 1.8rem; color: var(--primary); margin-bottom: 0.8rem; }
.contact-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.4rem; color: var(--text); }
.contact-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.6; margin-bottom: 0.3rem; }
.contact-card .mono-data { font-family: 'Courier New', monospace; font-size: 0.9rem; color: var(--accent); word-break: break-all; }
.form-section { margin-top: 3rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; }
.form-group { display: flex; flex-direction: column; }
.form-group label { font-size: 0.9rem; font-weight: 600; color: var(--text); margin-bottom: 0.4rem; }
.form-control { background: rgba(0,0,0,0.3); border: 1px solid var(--border); color: var(--text); border-radius: var(--radius); padding: 0.65rem 0.9rem; font-size: 0.95rem; }
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15); }
.form-control::placeholder { color: rgba(148, 163, 184, 0.6); }
textarea.form-control { min-height: 140px; resize: vertical; }
.btn-submit { background: var(--primary); color: #0f172a; border: none; padding: 0.7rem 2rem; border-radius: var(--radius); font-weight: 700; font-size: 0.95rem; cursor: pointer; transition: background 0.2s, transform 0.1s; margin-top: 1rem; }
.btn-submit:hover { background: #7dd3fc; transform: translateY(-2px); }
.btn-submit:active { transform: translateY(0); }
.note-msg { font-size: 0.85rem; color: var(--muted); margin-top: 0.8rem; }
.accordion-item { background: transparent; border: 1px solid var(--border); border-radius: var(--radius) !important; margin-bottom: 0.75rem; overflow: hidden; }
.accordion-button { background: var(--card-bg); color: var(--text); font-weight: 600; padding: 1rem 1.25rem; box-shadow: none; }
.accordion-button:not(.collapsed) { color: var(--primary); background: var(--card-bg); }
.accordion-button:focus { box-shadow: none; }
.accordion-body { background: var(--card-bg); color: var(--text); padding: 1rem 1.25rem; border-top: 1px solid var(--border); font-size: 0.92rem; line-height: 1.7; }
.accordion-button::after { filter: invert(0.8); }
.response-time { display: inline-block; background: rgba(56, 189, 248, 0.12); color: var(--primary); font-size: 0.8rem; padding: 0.25rem 0.7rem; border-radius: 20px; margin-top: 0.5rem; }
.form-grid { grid-template-columns: 1fr; }
.contact-hero h1 { font-size: 2rem; }

/* --- 子页面追加 --- */
/* 页面专属小范围样式 —— 仅补充网站地图特有的排版需求 */
        .map-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.75rem;
            height: 100%;
            box-shadow: var(--shadow);
            transition: transform .25s ease, border-color .25s ease;
        }
.map-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }
.map-card .map-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: .75rem;
        }
.map-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: .5rem;
        }
.map-card p {
            color: var(--muted);
            font-size: .92rem;
            line-height: 1.7;
            margin-bottom: 1rem;
        }
.map-card a {
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
            font-size: .92rem;
        }
.map-card a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
.sitemap-tree {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 2rem;
            margin-top: 2rem;
        }
.sitemap-tree ul {
            list-style: none;
            padding-left: 1.25rem;
            border-left: 2px dashed var(--border);
            margin-bottom: 0;
        }
.sitemap-tree > ul {
            border-left: none;
            padding-left: 0;
        }
.sitemap-tree li {
            margin: .6rem 0;
            position: relative;
        }
.sitemap-tree a {
            color: var(--text);
            text-decoration: none;
            font-weight: 500;
            transition: color .2s;
        }
.sitemap-tree a:hover {
            color: var(--primary);
        }
.sitemap-tree .tree-root {
            font-weight: 800;
            color: var(--primary);
            font-size: 1.1rem;
        }
.sitemap-tree .tree-badge {
            font-size: .7rem;
            background: rgba(56, 189, 248, .15);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 20px;
            margin-left: 8px;
            font-weight: 600;
        }
.quick-links {
            display: flex;
            flex-wrap: wrap;
            gap: .75rem;
            margin-top: 1rem;
        }
.quick-links a {
            background: rgba(56, 189, 248, .1);
            border: 1px solid var(--border);
            color: var(--text);
            padding: .45rem 1.1rem;
            border-radius: 30px;
            font-size: .88rem;
            font-weight: 500;
            text-decoration: none;
            transition: all .25s;
        }
.quick-links a:hover {
            background: var(--primary);
            color: #0f172a;
            border-color: var(--primary);
        }

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