```css
/* ============================================================
   被窝影院 - 官方首页样式表
   网站: ldxdyc.cn
   风格: 深空紫渐变 + 毛玻璃拟态 + 舒适观影氛围
   ============================================================ */

/* ---------- 基础重置与设计令牌 ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 色彩系统 - 深空紫主题 */
    --bg: #f4f3fb;
    --bg-gradient: linear-gradient(160deg, #f4f3fb 0%, #eceaf8 50%, #f0eefc 100%);
    --surface: rgba(255, 255, 255, 0.72);
    --surface-solid: #ffffff;
    --surface-glass: rgba(255, 255, 255, 0.55);
    --text: #1a1a2e;
    --text-secondary: #55557a;
    --text-muted: #8a8aa8;
    --primary: #5b3cc4;
    --primary-light: #7c5fd3;
    --primary-dark: #3d2a8a;
    --primary-glow: rgba(91, 60, 196, 0.28);
    --accent: #e94560;
    --accent-light: #ff6b81;
    --accent-glow: rgba(233, 69, 96, 0.25);
    --border: rgba(91, 60, 196, 0.12);
    --border-strong: rgba(91, 60, 196, 0.22);
    --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
    --shadow: 0 8px 32px rgba(26, 26, 46, 0.08);
    --shadow-lg: 0 16px 48px rgba(91, 60, 196, 0.14);
    --shadow-glow: 0 8px 32px rgba(91, 60, 196, 0.22);
    --radius-sm: 10px;
    --radius: 18px;
    --radius-lg: 26px;
    --radius-full: 999px;
    --blur: 18px;
    --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    --font-mono: "SF Mono", "Fira Code", "JetBrains Mono", Consolas, monospace;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- 暗色模式 ---------- */
[data-theme="dark"] {
    --bg: #0a0a14;
    --bg-gradient: linear-gradient(160deg, #0a0a14 0%, #12102a 50%, #0d0b1e 100%);
    --surface: rgba(26, 26, 46, 0.72);
    --surface-solid: #1a1a2e;
    --surface-glass: rgba(26, 26, 46, 0.55);
    --text: #eaeaf5;
    --text-secondary: #a8a8c8;
    --text-muted: #6e6e90;
    --primary: #8b6fe8;
    --primary-light: #a48cf0;
    --primary-dark: #6b4fd0;
    --primary-glow: rgba(139, 111, 232, 0.32);
    --accent: #ff5c7a;
    --accent-light: #ff8fa3;
    --accent-glow: rgba(255, 92, 122, 0.28);
    --border: rgba(139, 111, 232, 0.16);
    --border-strong: rgba(139, 111, 232, 0.3);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 8px 32px rgba(139, 111, 232, 0.3);
}

/* ---------- 全局基础 ---------- */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text);
    line-height: 1.8;
    font-size: 16px;
    letter-spacing: 0.01em;
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition), opacity var(--transition);
}

a:hover {
    color: var(--accent);
}

img,
svg {
    max-width: 100%;
    display: block;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.35;
    font-weight: 800;
    letter-spacing: -0.01em;
}

::selection {
    background: var(--primary);
    color: #fff;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
    background-clip: content-box;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================================
   吸顶导航 - 毛玻璃效果
   ============================================================ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--surface);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
    backdrop-filter: blur(var(--blur)) saturate(180%);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: background var(--transition), box-shadow var(--transition);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    flex-shrink: 0;
    transition: transform var(--transition-bounce);
}

.logo:hover {
    transform: scale(1.04);
    color: var(--text);
}

.logo svg {
    width: 38px;
    height: 38px;
    filter: drop-shadow(0 2px 8px var(--primary-glow));
}

.nav-links {
    display: flex;
    gap: 4px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    transition: all var(--transition);
    position: relative;
    white-space: nowrap;
}

.nav-links a:hover {
    color: var(--primary);
    background: var(--primary-glow);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

/* 搜索框 - 毛玻璃 */
.search-box {
    display: flex;
    align-items: center;
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 7px 14px;
    gap: 8px;
    transition: all var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: var(--surface-solid);
}

.search-box input {
    border: none;
    background: transparent;
    color: var(--text);
    outline: none;
    font-size: 0.85rem;
    width: 150px;
    font-family: var(--font);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 2px;
    display: flex;
    align-items: center;
    transition: color var(--transition);
}

.search-box button:hover {
    color: var(--primary);
}

/* 主题切换按钮 */
.theme-toggle {
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 8px 12px;
    cursor: pointer;
    color: var(--text);
    font-size: 0.9rem;
    line-height: 1;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    transform: rotate(15deg);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    background: var(--surface-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 9px 8px;
    transition: all var(--transition);
}

.hamburger:hover {
    border-color: var(--primary);
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    margin: 4px 0;
    border-radius: 2px;
    transition: all var(--transition);
}

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb {
    padding: 16px 0 8px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px;
}

.breadcrumb a {
    color: var(--text-secondary);
    padding: 2px 4px;
    border-radius: 4px;
    transition: all var(--transition);
}

.breadcrumb a:hover {
    color: var(--primary);
    background: var(--primary-glow);
}

.breadcrumb span {
    margin: 0 4px;
    color: var(--text-muted);
}

/* ============================================================
   锚点导航 - 胶囊标签
   ============================================================ */
.anchor-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 0 18px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.anchor-nav a {
    font-size: 0.78rem;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all var(--transition);
    font-weight: 500;
    white-space: nowrap;
}

.anchor-nav a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 4px 16px var(--primary-glow);
    transform: translateY(-2px);
}

/* ============================================================
   Banner 轮播 - 渐变 + 光效
   ============================================================ */
.banner {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: 8px 0 32px;
    background: linear-gradient(135deg, #3d2a8a 0%, #5b3cc4 45%, #7c5fd3 100%);
    min-height: 300px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-lg);
    isolation: isolate;
}

/* 装饰性光斑 */
.banner::before {
    content: "";
    position: absolute;
    top: -60%;
    right: -10%;
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(233, 69, 96, 0.45) 0%, transparent 65%);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
    animation: floatGlow 12s ease-in-out infinite;
}

.banner::after {
    content: "";
    position: absolute;
    bottom: -50%;
    left: -5%;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(124, 95, 211, 0.55) 0%, transparent 65%);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
    animation: floatGlow 15s ease-in-out infinite reverse;
}

@keyframes floatGlow {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.8;
    }
    50% {
        transform: translate(-30px, 20px) scale(1.15);
        opacity: 1;
    }
}

.banner-slide {
    display: none;
    padding: 48px 56px;
    color: #fff;
    width: 100%;
    position: relative;
    z-index: 2;
}

.banner-slide.active {
    display: block;
    animation: fadeInUp 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.banner-slide h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
    line-height: 1.25;
}

.banner-slide p {
    font-size: 1.02rem;
    opacity: 0.92;
    max-width: 620px;
    line-height: 1.75;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.15);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.banner-dots button {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    border: none;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all var(--transition);
    padding: 0;
}

.banner-dots button:hover {
    background: rgba(255, 255, 255, 0.7);
    transform: scale(1.2);
}

.banner-dots button.active {
    background: #fff;
    width: 28px;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
}

/* ============================================================
   数字统计 - 毛玻璃卡片
   ============================================================ */
.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin: 32px 0 40px;
}

.stat-card {
    background: var(--surface);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
    backdrop-filter: blur(var(--blur)) saturate(180%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 18px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-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 var(--transition);
}

.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-light);
}

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

.stat-number {
    font-size: 2.1rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 6px;
    font-weight: 500;
}

/* ============================================================
   通用区块
   ============================================================ */
section {
    padding: 40px 0;
}

.section-title {
    font-size: 1.7rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--text);
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: "";
    display: block;
    width: 48px;
    height: 4px;
    margin-top: 10px;
    border-radius: var(--radius-full);
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.section-subtitle {
    font-size: 0.98rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    max-width: 760px;
    line-height: 1.75;
}

/* ============================================================
   卡片网格
   ============================================================ */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

/* 卡片 - 毛玻璃 + hover 动画 */
.card {
    background: var(--surface);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
    backdrop-filter: blur(var(--blur)) saturate(180%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition),
        border-color var(--transition);
    position: relative;
    overflow: hidden;
}

.card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--primary-glow), transparent 40%, var(--accent-glow));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
    border-color: var(--border-strong);
}

.card:hover::after {
    opacity: 1;
}

.card h2 {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 14px;
    color: var(--text);
}

.card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary);
    letter-spacing: 0.01em;
}

.card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 8px;
}

.card p:last-child {
    margin-bottom: 0;
}

.card strong {
    color: var(--text);
    font-weight: 700;
}

.card svg {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    color: var(--primary);
    padding: 10px;
    background: var(--primary-glow);
    border-radius: var(--radius-sm);
    box-sizing: content-box;
    transition: all var(--transition-bounce);
}

.card:hover svg {
    transform: scale(1.08) rotate(-4deg);
    background: var(--primary);
    color: #fff;
}

/* 卡片内列表 */
.card ul {
    list-style: none;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.card ul li {
    padding: 5px 0 5px 20px;
    position: relative;
    transition: color var(--transition), transform var(--transition);
}

.card ul li::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 14px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    transition: all var(--transition);
}

.card ul li:hover {
    color: var(--primary);
    transform: translateX(3px);
}

.card ul li:hover::before {
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.card ul a {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.card ul a:hover {
    color: var(--primary);
}

/* ============================================================
   文章列表
   ============================================================ */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.article-item {
    background: var(--surface);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
    backdrop-filter: blur(var(--blur)) saturate(180%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.article-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary), var(--accent));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--transition);
}

.article-item:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow);
    transform: translateX(6px);
}

.article-item:hover::before {
    transform: scaleY(1);
}

.article-meta {
    display: flex;
    gap: 16px;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    align-items: center;
}

.article-meta time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.article-meta span {
    padding: 2px 10px;
    background: var(--primary-glow);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.72rem;
}

.article-item h3 {
    font-size: 1.08rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.5;
}

.article-item h3 a {
    color: var(--text);
    transition: color var(--transition);
}

.article-item h3 a:hover {
    color: var(--primary);
}

.article-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    line-height: 1.8;
}

.read-more {
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all var(--transition);
}

.read-more:hover {
    color: var(--accent);
    gap: 8px;
}

/* ============================================================
   FAQ 手风琴
   ============================================================ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
    backdrop-filter: blur(var(--blur)) saturate(180%);
    overflow: hidden;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.faq-item:hover {
    border-color: var(--border-strong);
}

.faq-item.open {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 18px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.96rem;
    font-weight: 700;
    color: var(--text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-family: var(--font);
    transition: background var(--transition), color var(--transition);
    line-height: 1.6;
}

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

.faq-question .icon {
    transition: transform var(--transition-bounce), color var(--transition);
    font-size: 1.4rem;
    color: var(--primary);
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary-glow);
    line-height: 1;
}

.faq-item.open .faq-question .icon {
    transform: rotate(135deg);
    background: var(--primary);
    color: #fff;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), padding 0.45s ease;
    padding: 0 24px;
}

.faq-item.open .faq-answer {
    max-height: 600px;
    padding: 0 24px 20px;
}

.faq-answer p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.9;
    padding-top: 4px;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

/* ============================================================
   HowTo 步骤
   ============================================================ */
.howto-step {
    display: flex;
    gap: 18px;
    margin-bottom: 24px;
    align-items: flex-start;
    padding: 16px 18px;
    border-radius: var(--radius);
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.howto-step:hover {
    transform: translateX(6px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}

.step-num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.95rem;
    box-shadow: 0 4px 16px var(--primary-glow);
    transition: transform var(--transition-bounce);
}

.howto-step:hover .step-num {
    transform: scale(1.1) rotate(-6deg);
}

.step-content h4 {
    font-size: 0.98rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text);
}

.step-content p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================================
   表格
   ============================================================ */
.info-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.88rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}

.info-table th,
.info-table td {
    border-bottom: 1px solid var(--border);
    padding: 13px 18px;
    text-align: left;
    transition: background var(--transition);
}

.info-table th {
    background: var(--primary-glow);
    font-weight: 700;
    color: var(--primary);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}

.info-table tbody tr {
    transition: background var(--transition);
}

.info-table tbody tr:hover {
    background: var(--primary-glow);
}

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

.info-table td:first-child {
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
}

/* ============================================================
   联系区
   ============================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--primary);
    padding: 9px;
    background: var(--primary-glow);
    border-radius: var(--radius-sm);
    box-sizing: content-box;
    transition: all var(--transition-bounce);
}

.card:hover .contact-item svg {
    background: var(--primary);
    color: #fff;
    transform: scale(1.08);
}

.contact-item h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text);
}

.contact-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ============================================================
   页脚
   ============================================================ */
footer {
    background: var(--surface);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
    backdrop-filter: blur(var(--blur)) saturate(180%);
    border-top: 1px solid var(--border);
    padding: 48px 0 24px;
    margin-top: 48px;
    position: relative;
}

footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
    opacity: 0.5;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 36px;
    margin-bottom: 32px;
}

.footer-col h4 {
    font-size: 0.92rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text);
    position: relative;
    display: inline-block;
}

.footer-col h4::after {
    content: "";
    display: block;
    width: 24px;
    height: 3px;
    margin-top: 6px;
    border-radius: var(--radius-full);
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 8px;
}

.footer-col a {
    font-size: 0.84rem;
    color: var(--text-secondary);
    transition: all var(--transition);
    display: inline-block;
}

.footer-col a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.footer-col p {
    font-size: 0.84rem;
    color: var(--text-secondary);
    line-height: 1.85;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ============================================================
   返回顶部
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 999;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border: none;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 24px var(--primary-glow);
    font-size: 1.3rem;
    font-weight: 700;
    transition: all var(--transition-bounce);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.back-to-top.show {
    display: flex;
    animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.08);
    box-shadow: 0 10px 32px var(--primary-glow);
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: scale(0.5) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ============================================================
   滚动动画
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   内联样式辅助类
   ============================================================ */
[style*="text-align:center"] {
    letter-spacing: 0.01em;
}

/* 法律声明卡片 */
#legal .card {
    padding: 24px;
}

#legal .card h4 {
    font-size: 1rem;
    margin-bottom: 12px;
}

/* 友情链接卡片 */
#links .card {
    padding: 18px 22px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
}

#links .card a {
    color: var(--text-secondary);
    transition: all var(--transition);
    display: block;
}

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

/* 网站地图卡片 */
#sitemap .card {
    padding: 22px;
}

#sitemap .card h4 {
    margin-bottom: 14px;
    font-size: 0.95rem;
}

#sitemap .card ul {
    list-style: none;
}

#sitemap .card ul li {
    padding: 4px 0;
}

/* 统计卡片中的 7×24 特殊处理 */
.stat-number[data-target="7"]::after {
    content: "×24";
    font-size: 1.2rem;
    margin-left: 2px;
}

/* ============================================================
   响应式布局
   ============================================================ */

/* 平板 - 900px */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .banner-slide h2 {
        font-size: 1.8rem;
    }
}

/* 移动端 - 900px */
@media (max-width: 900px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--surface);
        -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
        backdrop-filter: blur(var(--blur)) saturate(180%);
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        gap: 4px;
        animation: slideDown 0.3s ease;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        width: 100%;
        padding: 12px 16px;
        border-radius: var(--radius-sm);
        font-size: 0.95rem;
    }

    .hamburger {
        display: block;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* 手机 - 640px */
@media (max-width: 640px) {
    .container {
        padding: 0 16px;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .stat-card {
        padding: 22px 12px;
    }

    .stat-number {
        font-size: 1.7rem;
    }

    .banner {
        min-height: 240px;
        border-radius: var(--radius);
    }

    .banner-slide {
        padding: 28px 22px;
    }

    .banner-slide h2 {
        font-size: 1.35rem;
    }

    .banner-slide p {
        font-size: 0.9rem;
    }

    .banner-dots {
        bottom: 14px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

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

    .search-box {
        display: none;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .card {
        padding: 22px 20px;
    }

    .article-item {
        padding: 20px;
    }

    .article-item:hover {
        transform: translateX(0);
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
    }

    .info-table th,
    .info-table td {
        padding: 10px 12px;
        font-size: 0.82rem;
    }

    .info-table td:first-child {
        white-space: normal;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 6px;
    }

    .howto-step {
        padding: 14px;
        gap: 14px;
    }

    .step-num {
        width: 34px;
        height: 34px;
        font-size: 0.85rem;
    }

    .faq-question {
        padding: 16px 18px;
        font-size: 0.9rem;
    }

    .faq-answer {
        padding: 0 18px;
    }

    .faq-item.open .faq-answer {
        padding: 0 18px 16px;
    }
}

/* 超小屏 - 380px */
@media (max-width: 380px) {
    .stats {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .banner-slide h2 {
        font-size: 1.2rem;
    }

    .logo {
        font-size: 1.05rem;
    }

    .logo svg {
        width: 30px;
        height: 30px;
    }

    .theme-toggle {
        padding: 7px 10px;
    }
}

/* ============================================================
   无障碍与动效偏好
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    .banner::before,
    .banner::after {
        animation: none;
    }
}

/* 焦点可见性 */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* 打印样式 */
@media print {
    .navbar,
    .banner,
    .back-to-top,
    .anchor-nav,
    .theme-toggle,
    .search-box,
    .hamburger {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
    }
}
```