```css
/* ==========================================================================
   妖精视频 - 二次元影像小站
   完整样式表
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS 变量与主题
   -------------------------------------------------------------------------- */
:root {
    --bg: #f8f9fa;
    --bg-alt: #ffffff;
    --text: #1a1a2e;
    --text-secondary: #4a4a5e;
    --card: #ffffff;
    --card-hover: #fafbfc;
    --accent: #e94560;
    --accent-hover: #d63851;
    --accent-light: rgba(233, 69, 96, 0.1);
    --accent2: #0f3460;
    --accent2-light: rgba(15, 52, 96, 0.08);
    --muted: #6c757d;
    --border: #e9ecef;
    --border-hover: #d1d5db;
    --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06);
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-accent: 0 4px 20px rgba(233, 69, 96, 0.25);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.15s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --glass-bg: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-blur: 16px;
    --gradient-primary: linear-gradient(135deg, #e94560 0%, #0f3460 100%);
    --gradient-banner: linear-gradient(135deg, #0f3460 0%, #16213e 40%, #e94560 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(255,255,255,0.6));
    --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;
}

[data-theme="dark"] {
    --bg: #0f0f1a;
    --bg-alt: #161625;
    --text: #e8e8f0;
    --text-secondary: #b0b0c0;
    --card: #1a1a2e;
    --card-hover: #1f1f35;
    --accent: #ff5a76;
    --accent-hover: #ff7a90;
    --accent-light: rgba(255, 90, 118, 0.12);
    --accent2: #1e3a6e;
    --accent2-light: rgba(30, 58, 110, 0.15);
    --muted: #a0a0b0;
    --border: #2a2a3e;
    --border-hover: #3a3a52;
    --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.2);
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.45);
    --shadow-accent: 0 4px 20px rgba(255, 90, 118, 0.2);
    --glass-bg: rgba(22, 22, 37, 0.75);
    --glass-border: rgba(255, 255, 255, 0.06);
    --gradient-banner: linear-gradient(135deg, #0a0a14 0%, #16213e 40%, #3d1a2a 100%);
    --gradient-card: linear-gradient(145deg, rgba(26,26,46,0.9), rgba(22,22,37,0.7));
}

/* --------------------------------------------------------------------------
   2. 重置与基础
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.8;
    transition: background var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    min-height: 100vh;
}

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

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

a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
}

ul, ol {
    list-style: none;
}

::selection {
    background: var(--accent);
    color: #ffffff;
}

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

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

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

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

/* --------------------------------------------------------------------------
   3. 容器与布局
   -------------------------------------------------------------------------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.grid {
    display: grid;
    gap: 20px;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

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

[data-theme="dark"] .navbar {
    border-bottom-color: var(--border);
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent);
    white-space: nowrap;
    letter-spacing: -0.02em;
    transition: transform var(--transition), opacity var(--transition);
    flex-shrink: 0;
}

.logo:hover {
    transform: scale(1.03);
    opacity: 0.9;
}

.logo span {
    color: var(--accent2);
    transition: color var(--transition);
}

[data-theme="dark"] .logo span {
    color: #6ea8fe;
}

.nav-links {
    display: flex;
    gap: 2px;
    flex-wrap: wrap;
    align-items: center;
}

.nav-links a {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text);
    transition: background var(--transition), color var(--transition), transform var(--transition);
    position: relative;
    white-space: nowrap;
}

.nav-links a:hover {
    background: var(--accent-light);
    color: var(--accent);
    transform: translateY(-1px);
}

.nav-links a:active {
    transform: translateY(0);
}

.nav-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-shrink: 0;
}

/* 搜索框 */
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    border: 1px solid var(--border);
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.search-box input {
    border: none;
    background: transparent;
    color: var(--text);
    outline: none;
    width: 120px;
    font-size: 0.85rem;
    padding: 4px;
    transition: width var(--transition);
}

.search-box input::placeholder {
    color: var(--muted);
    opacity: 0.7;
}

.search-box input:focus {
    width: 160px;
}

.search-box button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--muted);
    font-size: 1rem;
    padding: 2px 4px;
    transition: color var(--transition), transform var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-box button:hover {
    color: var(--accent);
    transform: scale(1.15);
}

/* 主题切换按钮 */
.theme-toggle {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 6px 10px;
    font-size: 1rem;
    color: var(--text);
    transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.theme-toggle:hover {
    background: var(--accent-light);
    border-color: var(--accent);
    transform: rotate(15deg) scale(1.05);
    box-shadow: var(--shadow-accent);
}

.theme-toggle:active {
    transform: rotate(0deg) scale(0.95);
}

/* 移动菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text);
    padding: 4px 10px;
    transition: background var(--transition), border-color var(--transition);
    line-height: 1.4;
}

.mobile-menu-btn:hover {
    background: var(--accent-light);
    border-color: var(--accent);
}

/* --------------------------------------------------------------------------
   5. 面包屑
   -------------------------------------------------------------------------- */
.breadcrumb {
    padding: 16px 0;
    font-size: 0.85rem;
    color: var(--muted);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px;
}

.breadcrumb a {
    color: var(--accent);
    transition: opacity var(--transition);
}

.breadcrumb a:hover {
    opacity: 0.75;
}

.breadcrumb span {
    margin: 0 6px;
    color: var(--muted);
    opacity: 0.6;
}

/* --------------------------------------------------------------------------
   6. Banner 轮播 - 渐变 + 毛玻璃
   -------------------------------------------------------------------------- */
.banner {
    position: relative;
    overflow: hidden;
    background: var(--gradient-banner);
    color: #ffffff;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.banner::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(233, 69, 96, 0.15) 0%, transparent 50%);
    pointer-events: none;
    animation: bannerGlow 12s ease-in-out infinite alternate;
}

@keyframes bannerGlow {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-5%, -5%) rotate(3deg); }
}

.banner-slides {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.banner-slide {
    min-width: 100%;
    padding: 72px 20px 56px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.banner-slide h1 {
    font-size: 2.2rem;
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.3;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.8s ease both;
}

.banner-slide p {
    font-size: 1.05rem;
    opacity: 0.9;
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.8;
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 0.8s ease 0.15s both;
}

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

.banner-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 16px 0 24px;
    position: relative;
    z-index: 2;
}

.banner-dots button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.7);
    background: transparent;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), transform var(--transition), width var(--transition);
    padding: 0;
}

.banner-dots button:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: scale(1.2);
}

.banner-dots button.active {
    background: #ffffff;
    border-color: #ffffff;
    width: 28px;
    border-radius: 5px;
}

/* --------------------------------------------------------------------------
   7. 锚点导航
   -------------------------------------------------------------------------- */
.anchor-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px 0;
}

.anchor-nav a {
    padding: 6px 14px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.82rem;
    color: var(--text);
    transition: all var(--transition);
    white-space: nowrap;
}

.anchor-nav a:hover {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

/* --------------------------------------------------------------------------
   8. 区块与标题
   -------------------------------------------------------------------------- */
.section {
    padding: 56px 0;
    transition: background var(--transition);
}

.section:nth-child(even) {
    background: var(--bg-alt);
}

.section-title {
    font-size: 1.7rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text);
    position: relative;
    padding-left: 18px;
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.section-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: height var(--transition);
}

.section-subtitle {
    color: var(--muted);
    font-size: 0.95rem;
    margin-bottom: 32px;
    padding-left: 18px;
    line-height: 1.7;
}

/* --------------------------------------------------------------------------
   9. 卡片 - 圆角 + 毛玻璃 + hover动画
   -------------------------------------------------------------------------- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition);
    border-radius: var(--radius) var(--radius) 0 0;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover);
    background: var(--card-hover);
}

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

.card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text);
    font-weight: 700;
    line-height: 1.4;
    transition: color var(--transition);
}

.card:hover h3 {
    color: var(--accent);
}

.card h4 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--accent2);
    font-weight: 600;
    transition: color var(--transition);
}

[data-theme="dark"] .card h4 {
    color: #6ea8fe;
}

.card p {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.75;
    transition: color var(--transition);
}

.card .meta {
    font-size: 0.78rem;
    color: var(--muted);
    margin-top: 14px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

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

/* 标签 */
.tag {
    display: inline-block;
    background: var(--accent-light);
    color: var(--accent);
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    margin-right: 4px;
    margin-bottom: 4px;
    border: 1px solid transparent;
    transition: background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition);
    font-weight: 500;
    line-height: 1.5;
}

.tag:hover {
    background: var(--accent);
    color: #ffffff;
    transform: translateY(-1px);
    border-color: var(--accent);
}

/* --------------------------------------------------------------------------
   10. 数字统计
   -------------------------------------------------------------------------- */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
    text-align: center;
}

.stats > div {
    padding: 24px 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.stats > div:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

.stat-num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    transition: color var(--transition);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 6px;
    line-height: 1.5;
}

/* --------------------------------------------------------------------------
   11. FAQ 手风琴
   -------------------------------------------------------------------------- */
.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    overflow: hidden;
    background: var(--card);
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.faq-item:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-sm);
}

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

.faq-q {
    width: 100%;
    text-align: left;
    padding: 16px 20px;
    background: var(--card);
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    transition: background var(--transition), color var(--transition);
    line-height: 1.6;
}

.faq-q:hover {
    background: var(--bg);
    color: var(--accent);
}

.faq-q::after {
    content: "+";
    font-size: 1.3rem;
    color: var(--accent);
    transition: transform var(--transition), color var(--transition);
    flex-shrink: 0;
    font-weight: 400;
    line-height: 1;
}

.faq-item.open .faq-q::after {
    content: "−";
    transform: rotate(180deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding var(--transition);
    padding: 0 20px;
}

.faq-item.open .faq-a {
    max-height: 600px;
    padding: 0 20px 16px;
}

.faq-a p {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.85;
}

/* --------------------------------------------------------------------------
   12. HowTo 步骤
   -------------------------------------------------------------------------- */
.howto-step {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    align-items: flex-start;
    transition: transform var(--transition);
}

.howto-step:hover {
    transform: translateX(4px);
}

.howto-num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: var(--shadow-accent);
    transition: transform var(--transition), box-shadow var(--transition);
}

.howto-step:hover .howto-num {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 6px 24px rgba(233, 69, 96, 0.35);
}

.howto-content h4 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--text);
    font-weight: 600;
    line-height: 1.5;
}

.howto-content p {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   13. 表格
   -------------------------------------------------------------------------- */
.table-wrap {
    overflow-x: auto;
    margin-top: 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 600px;
}

th,
td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    transition: background var(--transition), color var(--transition);
}

th {
    background: var(--bg);
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

td {
    color: var(--muted);
    line-height: 1.7;
}

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

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

tbody tr:hover {
    background: var(--accent-light);
}

tbody tr:hover td {
    color: var(--text);
}

/* --------------------------------------------------------------------------
   14. 联系信息
   -------------------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 20px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

.contact-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: transform var(--transition), background var(--transition);
}

.contact-item:hover .contact-icon {
    transform: scale(1.1) rotate(-5deg);
    background: var(--accent);
}

.contact-item h4 {
    font-size: 0.9rem;
    margin-bottom: 2px;
    color: var(--text);
    font-weight: 600;
}

.contact-item p {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.6;
    word-break: break-all;
}

/* --------------------------------------------------------------------------
   15. 页脚
   -------------------------------------------------------------------------- */
.footer {
    background: var(--accent2);
    color: #e8e8f0;
    padding: 56px 0 28px;
    margin-top: 56px;
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .footer {
    background: #0a0a14;
    border-top: 1px solid var(--border);
}

.footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 36px;
    margin-bottom: 36px;
}

.footer h4 {
    font-size: 1rem;
    margin-bottom: 14px;
    color: #ffffff;
    font-weight: 700;
    position: relative;
    padding-bottom: 10px;
}

.footer h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

.footer a {
    color: #c0c0d0;
    font-size: 0.85rem;
    display: block;
    margin-bottom: 8px;
    transition: color var(--transition), transform var(--transition), padding-left var(--transition);
    line-height: 1.6;
}

.footer a:hover {
    color: var(--accent);
    transform: translateX(4px);
    padding-left: 2px;
}

.footer p {
    font-size: 0.85rem;
    color: #a0a0b0;
    line-height: 1.75;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    text-align: center;
    font-size: 0.8rem;
    color: #808090;
    line-height: 1.8;
}

.footer-bottom a {
    display: inline;
    color: #a0a0b0;
    margin: 0 4px;
    transition: color var(--transition);
}

.footer-bottom a:hover {
    color: var(--accent);
    transform: none;
    padding-left: 0;
}

/* --------------------------------------------------------------------------
   16. 返回顶部
   -------------------------------------------------------------------------- */
.back-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #ffffff;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: var(--shadow-accent);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition), box-shadow var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.back-top.show {
    opacity: 1;
    visibility: visible;
}

.back-top:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 28px rgba(233, 69, 96, 0.4);
}

.back-top:active {
    transform: translateY(-2px) scale(0.98);
}

/* --------------------------------------------------------------------------
   17. 滚动动画
   -------------------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

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

/* 交错动画延迟 */
.grid > .reveal:nth-child(1) { transition-delay: 0s; }
.grid > .reveal:nth-child(2) { transition-delay: 0.08s; }
.grid > .reveal:nth-child(3) { transition-delay: 0.16s; }
.grid > .reveal:nth-child(4) { transition-delay: 0.24s; }
.grid > .reveal:nth-child(5) { transition-delay: 0.32s; }
.grid > .reveal:nth-child(6) { transition-delay: 0.4s; }

/* --------------------------------------------------------------------------
   18. 图片容器
   -------------------------------------------------------------------------- */
.img-wrap {
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg);
    position: relative;
    aspect-ratio: 16 / 9;
    transition: transform var(--transition), box-shadow var(--transition);
}

.img-wrap svg {
    width: 100%;
    height: 100%;
    display: block;
    transition: transform var(--transition-slow);
}

.card:hover .img-wrap svg {
    transform: scale(1.05);
}

.img-wrap::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.15) 100%);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.card:hover .img-wrap::after {
    opacity: 1;
}

/* --------------------------------------------------------------------------
   19. 作者信息
   -------------------------------------------------------------------------- */
.author-box {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 20px 24px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 28px;
    transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.author-box:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.author-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 800;
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-accent);
    transition: transform var(--transition);
}

.author-box:hover .author-avatar {
    transform: scale(1.08) rotate(-5deg);
}

.author-info h4 {
    font-size: 0.95rem;
    margin-bottom: 2px;
    color: var(--text);
    font-weight: 600;
}

.author-info p {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.6;
}

/* --------------------------------------------------------------------------
   20. 客户评价
   -------------------------------------------------------------------------- */
.testimonial {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px 24px;
    position: relative;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    overflow: hidden;
}

.testimonial:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.testimonial::before {
    content: "\201C";
    position: absolute;
    top: 4px;
    left: 16px;
    font-size: 3.5rem;
    color: var(--accent);
    opacity: 0.15;
    line-height: 1;
    font-family: Georgia, serif;
    transition: opacity var(--transition), transform var(--transition);
}

.testimonial:hover::before {
    opacity: 0.25;
    transform: scale(1.1);
}

.testimonial p {
    font-size: 0.9rem;
    color: var(--muted);
    margin-bottom: 18px;
    padding-top: 14px;
    line-height: 1.85;
    position: relative;
    z-index: 1;
}

.testimonial .author {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.4;
}

.testimonial .role {
    font-size: 0.78rem;
    color: var(--muted);
    margin-top: 2px;
}

/* --------------------------------------------------------------------------
   21. 新闻列表
   -------------------------------------------------------------------------- */
.news-item {
    display: flex;
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px solid var(--border);
    transition: transform var(--transition), padding-left var(--transition), background var(--transition);
    border-radius: var(--radius-sm);
}

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

.news-item:hover {
    transform: translateX(4px);
    padding-left: 8px;
    background: var(--accent-light);
}

.news-date {
    flex-shrink: 0;
    text-align: center;
    width: 60px;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.news-item:hover .news-date {
    background: var(--accent);
}

.news-date .day {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.1;
    transition: color var(--transition);
}

.news-item:hover .news-date .day {
    color: #ffffff;
}

.news-date .month {
    font-size: 0.72rem;
    color: var(--muted);
    line-height: 1.4;
    transition: color var(--transition);
}

.news-item:hover .news-date .month {
    color: rgba(255, 255, 255, 0.8);
}

.news-content h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
    color: var(--text);
    font-weight: 600;
    line-height: 1.5;
    transition: color var(--transition);
}

.news-item:hover .news-content h4 {
    color: var(--accent);
}

.news-content p {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.7;
}

/* --------------------------------------------------------------------------
   22. 文章卡片链接
   -------------------------------------------------------------------------- */
.card > a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    transition: gap var(--transition), color var(--transition);
}

.card > a:hover {
    gap: 8px;
    color: var(--accent-hover);
}

/* --------------------------------------------------------------------------
   23. 响应式 - 平板 (≤900px)
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--glass-bg);
        -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
        backdrop-filter: blur(var(--glass-blur)) saturate(180%);
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        gap: 4px;
        animation: slideDown 0.3s ease both;
    }

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

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

    .nav-links a {
        width: 100%;
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        font-size: 0.92rem;
    }

    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .search-box input {
        width: 80px;
    }

    .search-box input:focus {
        width: 120px;
    }

    .banner-slide {
        padding: 56px 20px 44px;
    }

    .banner-slide h1 {
        font-size: 1.8rem;
    }

    .section {
        padding: 44px 0;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .footer-grid {
        gap: 28px;
    }
}

/* --------------------------------------------------------------------------
   24. 响应式 - 手机 (≤600px)
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
    html {
        font-size: 15px;
        scroll-padding-top: 72px;
    }

    .container {
        padding: 0 16px;
    }

    .nav-inner {
        height: 58px;
        gap: 10px;
    }

    .logo {
        font-size: 1.2rem;
    }

    .nav-links {
        top: 58px;
    }

    .nav-actions .search-box {
        display: none;
    }

    .theme-toggle {
        padding: 5px 8px;
        font-size: 0.9rem;
    }

    .mobile-menu-btn {
        padding: 3px 8px;
        font-size: 1.2rem;
    }

    .banner {
        border-radius: 0 0 var(--radius) var(--radius);
    }

    .banner-slide {
        padding: 44px 16px 36px;
    }

    .banner-slide h1 {
        font-size: 1.35rem;
        margin-bottom: 12px;
    }

    .banner-slide p {
        font-size: 0.88rem;
        line-height: 1.7;
    }

    .banner-dots {
        padding: 12px 0 18px;
        gap: 8px;
    }

    .banner-dots button {
        width: 8px;
        height: 8px;
    }

    .banner-dots button.active {
        width: 22px;
    }

    .breadcrumb {
        padding: 12px 0;
        font-size: 0.8rem;
    }

    .anchor-nav {
        gap: 6px;
        padding: 12px 0;
    }

    .anchor-nav a {
        padding: 5px 11px;
        font-size: 0.78rem;
    }

    .section {
        padding: 36px 0;
    }

    .section-title {
        font-size: 1.25rem;
        padding-left: 14px;
    }

    .section-title::before {
        width: 3px;
        top: 5px;
        bottom: 5px;
    }

    .section-subtitle {
        font-size: 0.88rem;
        margin-bottom: 24px;
        padding-left: 14px;
    }

    .grid {
        gap: 16px;
    }

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

    .card {
        padding: 20px;
        border-radius: var(--radius-sm);
    }

    .card h3 {
        font-size: 1.02rem;
    }

    .card p {
        font-size: 0.86rem;
    }

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

    .stats > div {
        padding: 18px 12px;
    }

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

    .stat-label {
        font-size: 0.78rem;
    }

    .faq-q {
        padding: 14px 16px;
        font-size: 0.9rem;
    }

    .faq-a {
        padding: 0 16px;
    }

    .faq-item.open .faq-a {
        padding: 0 16px 14px;
    }

    .faq-a p {
        font-size: 0.86rem;
    }

    .howto-step {
        gap: 12px;
        margin-bottom: 20px;
    }

    .howto-num {
        width: 34px;
        height: 34px;
        font-size: 0.95rem;
    }

    .howto-content h4 {
        font-size: 0.92rem;
    }

    .howto-content p {
        font-size: 0.85rem;
    }

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

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .contact-item {
        padding: 16px;
    }

    .author-box {
        flex-direction: column;
        text-align: center;
        padding: 20px 16px;
        gap: 12px;
    }

    .author-info h4 {
        font-size: 0.9rem;
    }

    .author-info p {
        font-size: 0.78rem;
    }

    .testimonial {
        padding: 24px 18px 18px;
    }

    .news-item {
        gap: 12px;
        padding: 14px 0;
    }

    .news-date {
        width: 50px;
    }

    .news-date .day {
        font-size: 1.2rem;
    }

    .news-content h4 {
        font-size: 0.88rem;
    }

    .news-content p {
        font-size: 0.78rem;
    }

    .footer {
        padding: 40px 0 20px;
        margin-top: 40px;
    }

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

    .footer-bottom {
        font-size: 0.75rem;
    }

    .back-top {
        width: 42px;
        height: 42px;
        bottom: 20px;
        right: 20px;
        font-size: 1rem;
    }
}

/* --------------------------------------------------------------------------
   25. 响应式 - 超小屏 (≤380px)
   -------------------------------------------------------------------------- */
@media (max-width: 380px) {
    .banner-slide h1 {
        font-size: 1.15rem;
    }

    .banner-slide p {
        font-size: 0.82rem;
    }

    .section-title {
        font-size: 1.15rem;
    }

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

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

/* --------------------------------------------------------------------------
   26. 减少动画偏好
   -------------------------------------------------------------------------- */
@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 {
        animation: none;
    }
}

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

    body {
        background: #ffffff;
        color: #000000;
        font-size: 12pt;
    }

    .card,
    .faq-item,
    .testimonial {
        box-shadow: none;
        border: 1px solid #cccccc;
        break-inside: avoid;
    }

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

    a {
        color: #000000;
        text-decoration: underline;
    }

    .footer {
        background: #ffffff;
        color: #000000;
    }

    .footer a {
        color: #000000;
    }
}

/* --------------------------------------------------------------------------
   28. 高对比度模式
   -------------------------------------------------------------------------- */
@media (forced-colors: active) {
    .card,
    .faq-item,
    .contact-item,
    .testimonial,
    .stats > div {
        border: 1px solid ButtonText;
    }

    .tag {
        border: 1px solid ButtonText;
    }

    .back-top {
        border: 2px solid ButtonText;
    }

    .banner-dots button.active {
        background: ButtonText;
    }
}
```