```css
/* ============================================
   抖漫 - 新番索引｜作者专区｜更新时间
   完整样式表 (style.css)
   风格: 深色科技渐变 + 毛玻璃 + 圆角卡片
   ============================================ */

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

:root {
    /* 品牌色 - 深空蓝紫 + 霓虹粉 */
    --brand-primary: #6c5ce7;
    --brand-secondary: #a29bfe;
    --brand-accent: #fd79a8;
    --brand-accent-2: #00cec9;
    --brand-highlight: #4834d4;
    --brand-light: #f8f9fd;
    --brand-text: #2d3436;
    --brand-text-light: #636e72;
    --brand-bg: #f8f9fd;
    --brand-card-bg: rgba(255, 255, 255, 0.85);
    --brand-card-solid: #ffffff;
    --brand-border: rgba(108, 92, 231, 0.15);
    --brand-shadow: rgba(108, 92, 231, 0.12);
    --brand-shadow-lg: rgba(108, 92, 231, 0.22);
    --brand-header-bg: rgba(255, 255, 255, 0.75);
    --brand-header-text: #2d3436;
    --brand-footer-bg: #1a1a2e;
    --brand-footer-text: #b2bec3;
    --brand-input-bg: rgba(108, 92, 231, 0.08);
    --brand-radius: 16px;
    --brand-radius-sm: 10px;
    --brand-radius-lg: 24px;
    --brand-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --brand-glow: 0 0 24px rgba(253, 121, 168, 0.35);
    --glass-blur: 18px;
    --glass-border: rgba(255, 255, 255, 0.35);
}

/* ---------- 暗色模式 ---------- */
body.dark-mode {
    --brand-primary: #a29bfe;
    --brand-secondary: #6c5ce7;
    --brand-accent: #fd79a8;
    --brand-accent-2: #00cec9;
    --brand-highlight: #4834d4;
    --brand-light: #1a1a2e;
    --brand-text: #e8e8f0;
    --brand-text-light: #a4a4b8;
    --brand-bg: #0f0f1a;
    --brand-card-bg: rgba(30, 30, 50, 0.72);
    --brand-card-solid: #1e1e32;
    --brand-border: rgba(162, 155, 254, 0.18);
    --brand-shadow: rgba(0, 0, 0, 0.4);
    --brand-shadow-lg: rgba(0, 0, 0, 0.6);
    --brand-header-bg: rgba(15, 15, 26, 0.78);
    --brand-header-text: #e8e8f0;
    --brand-footer-bg: #08080f;
    --brand-footer-text: #8888a0;
    --brand-input-bg: rgba(162, 155, 254, 0.1);
    --glass-border: rgba(162, 155, 254, 0.15);
}

/* ---------- 全局 ---------- */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
        sans-serif;
    background-color: var(--brand-bg);
    background-image:
        radial-gradient(circle at 15% 20%, rgba(108, 92, 231, 0.08) 0%, transparent 45%),
        radial-gradient(circle at 85% 70%, rgba(253, 121, 168, 0.07) 0%, transparent 45%);
    background-attachment: fixed;
    color: var(--brand-text);
    line-height: 1.8;
    font-size: 16px;
    transition: background-color var(--brand-transition), color var(--brand-transition);
    overflow-x: hidden;
    min-height: 100vh;
}

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

a:hover {
    color: var(--brand-primary);
    text-decoration: underline;
}

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

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

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--brand-primary), var(--brand-accent));
    border-radius: 10px;
    border: 2px solid var(--brand-bg);
}

/* ---------- 容器 ---------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ---------- 头部导航 (毛玻璃) ---------- */
.site-header {
    background-color: var(--brand-header-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    color: var(--brand-header-text);
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px var(--brand-shadow);
    transition: background-color var(--brand-transition), box-shadow var(--brand-transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
}

/* Logo */
.logo a {
    color: var(--brand-header-text);
    font-size: 1.55rem;
    font-weight: 800;
    text-decoration: none;
    letter-spacing: 3px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: color var(--brand-transition), transform var(--brand-transition);
}

.logo a:hover {
    color: var(--brand-accent);
    text-decoration: none;
    transform: scale(1.04);
}

.logo svg {
    width: 38px;
    height: 38px;
    filter: drop-shadow(0 0 8px rgba(253, 121, 168, 0.5));
    transition: transform var(--brand-transition);
}

.logo a:hover svg {
    transform: rotate(-10deg) scale(1.08);
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}

.nav-menu a {
    color: var(--brand-header-text);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 20px;
    border-bottom: none;
    position: relative;
    transition: color var(--brand-transition), background var(--brand-transition),
        transform var(--brand-transition);
}

.nav-menu a::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
    border-radius: 2px;
    transform: translateX(-50%);
    transition: width var(--brand-transition);
}

.nav-menu a:hover {
    color: var(--brand-accent);
    background: var(--brand-input-bg);
    text-decoration: none;
    transform: translateY(-2px);
}

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

/* 头部操作区 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 搜索框 */
.search-box {
    display: flex;
    align-items: center;
    background: var(--brand-input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 4px 6px 4px 8px;
    transition: background var(--brand-transition), box-shadow var(--brand-transition),
        border-color var(--brand-transition);
}

.search-box:focus-within {
    border-color: var(--brand-accent);
    box-shadow: 0 0 0 3px rgba(253, 121, 168, 0.18);
}

.search-box input {
    border: none;
    background: transparent;
    padding: 6px 10px;
    font-size: 0.9rem;
    color: var(--brand-text);
    outline: none;
    width: 130px;
    transition: width var(--brand-transition);
    font-family: inherit;
}

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

.search-box input:focus {
    width: 180px;
}

.search-box button {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    transition: transform var(--brand-transition), box-shadow var(--brand-transition);
    flex-shrink: 0;
}

.search-box button:hover {
    transform: scale(1.12) rotate(8deg);
    box-shadow: var(--brand-glow);
}

/* 主题切换 */
.theme-toggle {
    background: var(--brand-input-bg);
    border: 1px solid var(--glass-border);
    color: var(--brand-header-text);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--brand-transition), color var(--brand-transition),
        transform var(--brand-transition), box-shadow var(--brand-transition);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    transform: rotate(20deg) scale(1.08);
    box-shadow: var(--brand-glow);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: var(--brand-input-bg);
    border: 1px solid var(--glass-border);
    color: var(--brand-header-text);
    border-radius: var(--brand-radius-sm);
    padding: 8px 12px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background var(--brand-transition), transform var(--brand-transition);
}

.mobile-menu-btn:hover {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    transform: scale(1.05);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
    padding: 14px 0;
    font-size: 0.85rem;
    color: var(--brand-text-light);
    background: var(--brand-input-bg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--brand-border);
    transition: background var(--brand-transition);
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 6px;
}

.breadcrumb li:not(:last-child)::after {
    content: "›";
    color: var(--brand-accent);
    font-weight: 700;
}

.breadcrumb a {
    color: var(--brand-text-light);
    text-decoration: none;
    transition: color var(--brand-transition);
}

.breadcrumb a:hover {
    color: var(--brand-accent);
    text-decoration: none;
}

/* ---------- 主内容 ---------- */
main {
    padding: 0 0 50px;
}

/* ---------- 首屏 Hero (渐变 Banner) ---------- */
.hero {
    padding: 80px 0 60px;
    text-align: center;
    background:
        linear-gradient(135deg, #4834d4 0%, #6c5ce7 35%, #a29bfe 65%, #fd79a8 100%);
    color: #fff;
    border-radius: 0 0 var(--brand-radius-lg) var(--brand-radius-lg);
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.hero::before {
    content: "";
    position: absolute;
    top: -60%;
    left: -40%;
    width: 180%;
    height: 180%;
    background:
        radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 70% 60%, rgba(0, 206, 201, 0.25) 0%, transparent 50%);
    animation: heroPulse 10s ease-in-out infinite;
    z-index: -1;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
    mask-image: radial-gradient(circle at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 75%);
}

@keyframes heroPulse {
    0%, 100% {
        transform: scale(1) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.15) rotate(5deg);
        opacity: 1;
    }
}

.hero h1 {
    font-size: 2.6rem;
    margin-bottom: 18px;
    position: relative;
    z-index: 1;
    line-height: 1.35;
    font-weight: 800;
    letter-spacing: 1px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
}

.hero p {
    font-size: 1.1rem;
    max-width: 720px;
    margin: 0 auto 30px;
    opacity: 0.94;
    position: relative;
    z-index: 1;
    line-height: 1.9;
}

.hero-actions {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-block;
    padding: 13px 32px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform var(--brand-transition), box-shadow var(--brand-transition),
        background var(--brand-transition), color var(--brand-transition);
    border: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}

.btn::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
}

.btn:hover::after {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-accent), #e84393);
    color: #fff;
    box-shadow: 0 6px 20px rgba(253, 121, 168, 0.45);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 12px 32px rgba(253, 121, 168, 0.6);
    color: #fff;
    text-decoration: none;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.12);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.85);
}

.btn-outline:hover {
    background: #fff;
    color: var(--brand-primary);
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 12px 32px rgba(255, 255, 255, 0.35);
    text-decoration: none;
}

/* ---------- 轮播 ---------- */
.carousel-section {
    margin-bottom: 60px;
}

.carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: var(--brand-radius-lg);
    box-shadow: 0 10px 40px var(--brand-shadow-lg);
    background: var(--brand-card-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    border: 1px solid var(--glass-border);
    transition: background var(--brand-transition), box-shadow var(--brand-transition);
}

.carousel-track {
    display: flex;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
    min-width: 100%;
    padding: 50px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: transparent;
    transition: background var(--brand-transition);
}

.carousel-slide h3 {
    font-size: 1.7rem;
    margin-bottom: 14px;
    color: var(--brand-text);
    font-weight: 800;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.carousel-slide p {
    color: var(--brand-text-light);
    max-width: 620px;
    margin-bottom: 0;
    font-size: 1.02rem;
    line-height: 1.9;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 18px 0;
    background: transparent;
    transition: background var(--brand-transition);
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--brand-border);
    border: none;
    cursor: pointer;
    transition: background var(--brand-transition), transform var(--brand-transition),
        width var(--brand-transition);
    padding: 0;
}

.carousel-dot.active {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    transform: scale(1.25);
    width: 32px;
    border-radius: 6px;
    box-shadow: 0 0 12px rgba(253, 121, 168, 0.5);
}

.carousel-dot:hover:not(.active) {
    background: var(--brand-secondary);
    transform: scale(1.15);
}

/* ---------- 数字统计 ---------- */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 22px;
    margin-bottom: 60px;
}

.stat-card {
    background: var(--brand-card-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    border-radius: var(--brand-radius);
    padding: 32px 20px;
    text-align: center;
    box-shadow: 0 6px 24px var(--brand-shadow);
    transition: transform var(--brand-transition), box-shadow var(--brand-transition),
        background var(--brand-transition), border-color var(--brand-transition);
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--brand-transition);
}

.stat-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 16px 40px var(--brand-shadow-lg);
    border-color: var(--brand-accent);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-number {
    font-size: 2.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
    margin-bottom: 8px;
    letter-spacing: -1px;
    line-height: 1.2;
}

.stat-label {
    color: var(--brand-text-light);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ---------- 区块通用 ---------- */
.section {
    margin-bottom: 60px;
    scroll-margin-top: 90px;
}

.section-title {
    font-size: 1.9rem;
    margin-bottom: 10px;
    color: var(--brand-text);
    position: relative;
    padding-bottom: 16px;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(253, 121, 168, 0.4);
}

.section-subtitle {
    color: var(--brand-text-light);
    margin-bottom: 32px;
    font-size: 1.02rem;
    line-height: 1.8;
}

/* ---------- 卡片网格 ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 26px;
}

.card {
    background: var(--brand-card-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    border-radius: var(--brand-radius);
    padding: 30px 26px;
    box-shadow: 0 6px 24px var(--brand-shadow);
    border: 1px solid var(--glass-border);
    transition: transform var(--brand-transition), box-shadow var(--brand-transition),
        background var(--brand-transition), border-color var(--brand-transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.06), rgba(253, 121, 168, 0.06));
    opacity: 0;
    transition: opacity var(--brand-transition);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 44px var(--brand-shadow-lg);
    border-color: var(--brand-accent);
}

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

.card h3 {
    font-size: 1.2rem;
    margin-bottom: 14px;
    color: var(--brand-text);
    font-weight: 700;
    position: relative;
    padding-left: 16px;
    line-height: 1.5;
}

.card h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 20px;
    background: linear-gradient(180deg, var(--brand-primary), var(--brand-accent));
    border-radius: 3px;
}

.card p {
    color: var(--brand-text-light);
    font-size: 0.95rem;
    line-height: 1.85;
    position: relative;
}

.card p a {
    color: var(--brand-accent);
    font-weight: 600;
}

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

/* ---------- 文章列表 ---------- */
.article-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 26px;
}

.article-item {
    background: var(--brand-card-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    border-radius: var(--brand-radius);
    padding: 26px;
    box-shadow: 0 6px 24px var(--brand-shadow);
    border: 1px solid var(--glass-border);
    transition: transform var(--brand-transition), box-shadow var(--brand-transition),
        background var(--brand-transition), border-color var(--brand-transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.article-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--brand-primary), var(--brand-accent));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--brand-transition);
}

.article-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 44px var(--brand-shadow-lg);
    border-color: var(--brand-accent);
}

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

.article-meta {
    font-size: 0.8rem;
    color: var(--brand-text-light);
    margin-bottom: 12px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.article-meta time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
    color: var(--brand-primary);
    background: var(--brand-input-bg);
    padding: 2px 10px;
    border-radius: 12px;
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.12), rgba(253, 121, 168, 0.12));
    color: var(--brand-accent);
    font-weight: 600;
}

.article-item h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--brand-text);
    line-height: 1.55;
    font-weight: 700;
    transition: color var(--brand-transition);
}

.article-item:hover h3 {
    color: var(--brand-accent);
}

.article-item p {
    color: var(--brand-text-light);
    font-size: 0.9rem;
    line-height: 1.8;
    flex: 1;
    margin-bottom: 18px;
}

.read-more {
    color: var(--brand-accent);
    font-weight: 700;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap var(--brand-transition), color var(--brand-transition);
    align-self: flex-start;
}

.read-more:hover {
    gap: 10px;
    text-decoration: none;
    color: var(--brand-primary);
}

/* ---------- FAQ ---------- */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: var(--brand-card-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    border-radius: var(--brand-radius);
    border: 1px solid var(--glass-border);
    overflow: hidden;
    transition: background var(--brand-transition), border-color var(--brand-transition),
        box-shadow var(--brand-transition);
}

.faq-item:hover {
    border-color: var(--brand-accent);
    box-shadow: 0 6px 20px var(--brand-shadow);
}

.faq-item.open {
    border-color: var(--brand-accent);
    box-shadow: 0 8px 28px var(--brand-shadow-lg);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 20px 22px;
    background: transparent;
    border: none;
    font-size: 1rem;
    font-weight: 700;
    color: var(--brand-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    transition: background var(--brand-transition), color var(--brand-transition);
    font-family: inherit;
    line-height: 1.6;
}

.faq-question:hover {
    background: var(--brand-input-bg);
    color: var(--brand-accent);
}

.faq-question .faq-icon {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 400;
    transition: transform var(--brand-transition), box-shadow var(--brand-transition);
    line-height: 1;
}

.faq-item.open .faq-icon {
    transform: rotate(135deg);
    box-shadow: 0 0 14px rgba(253, 121, 168, 0.5);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
    padding: 0 22px;
    color: var(--brand-text-light);
    font-size: 0.95rem;
    line-height: 1.9;
}

.faq-item.open .faq-answer {
    max-height: 600px;
    padding: 0 22px 22px;
}

.faq-answer p {
    border-top: 1px dashed var(--brand-border);
    padding-top: 16px;
}

/* ---------- HowTo ---------- */
.howto-steps {
    display: flex;
    flex-direction: column;
    gap: 22px;
    counter-reset: step-counter;
}

.howto-step {
    background: var(--brand-card-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    border-radius: var(--brand-radius);
    padding: 28px 28px 28px 84px;
    box-shadow: 0 6px 24px var(--brand-shadow);
    border: 1px solid var(--glass-border);
    position: relative;
    transition: transform var(--brand-transition), box-shadow var(--brand-transition),
        background var(--brand-transition), border-color var(--brand-transition);
}

.howto-step:hover {
    transform: translateX(6px);
    box-shadow: 0 14px 36px var(--brand-shadow-lg);
    border-color: var(--brand-accent);
}

.howto-step::before {
    counter-increment: step-counter;
    content: counter(step-counter);
    position: absolute;
    left: 24px;
    top: 28px;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.05rem;
    box-shadow: 0 4px 14px rgba(108, 92, 231, 0.4);
    transition: transform var(--brand-transition), box-shadow var(--brand-transition);
}

.howto-step:hover::before {
    transform: scale(1.12) rotate(-8deg);
    box-shadow: 0 6px 20px rgba(253, 121, 168, 0.5);
}

.howto-step h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: var(--brand-text);
    font-weight: 700;
}

.howto-step p {
    color: var(--brand-text-light);
    font-size: 0.95rem;
    line-height: 1.9;
}

/* ---------- 联系信息 ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 22px;
}

.contact-card {
    background: var(--brand-card-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    border-radius: var(--brand-radius);
    padding: 26px;
    box-shadow: 0 6px 24px var(--brand-shadow);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: flex-start;
    gap: 18px;
    transition: transform var(--brand-transition), box-shadow var(--brand-transition),
        background var(--brand-transition), border-color var(--brand-transition);
}

.contact-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 44px var(--brand-shadow-lg);
    border-color: var(--brand-accent);
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: 0 6px 18px rgba(108, 92, 231, 0.35);
    transition: transform var(--brand-transition);
}

.contact-card:hover .contact-icon {
    transform: scale(1.1) rotate(-6deg);
}

.contact-card h3 {
    font-size: 1.02rem;
    margin-bottom: 6px;
    color: var(--brand-text);
    font-weight: 700;
}

.contact-card p {
    color: var(--brand-text-light);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ---------- 底部 ---------- */
.site-footer {
    background:
        linear-gradient(180deg, #1a1a2e 0%, #0f0f1a 100%);
    color: var(--brand-footer-text);
    padding: 60px 0 24px;
    transition: background var(--brand-transition);
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent), var(--brand-accent-2));
    background-size: 200% 100%;
    animation: gradientMove 6s linear infinite;
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 34px;
    margin-bottom: 34px;
}

.footer-col h4 {
    color: #fff;
    font-size: 1.05rem;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.footer-col h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 34px;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
    border-radius: 3px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col a {
    color: var(--brand-footer-text);
    font-size: 0.9rem;
    transition: color var(--brand-transition), padding-left var(--brand-transition);
    display: inline-block;
}

.footer-col a:hover {
    color: var(--brand-accent);
    text-decoration: none;
    padding-left: 6px;
}

.footer-col p {
    font-size: 0.9rem;
    line-height: 1.9;
    color: var(--brand-footer-text);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 0.85rem;
}

.footer-bottom-links {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.footer-bottom-links a {
    color: var(--brand-footer-text);
    font-size: 0.85rem;
    transition: color var(--brand-transition);
}

.footer-bottom-links a:hover {
    color: var(--brand-accent);
    text-decoration: none;
}

/* ---------- 返回顶部 ---------- */
.back-to-top {
    position: fixed;
    bottom: 34px;
    right: 34px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: 0 8px 24px rgba(253, 121, 168, 0.45);
    opacity: 0;
    visibility: hidden;
    transform: translateY(24px) scale(0.85);
    transition: opacity var(--brand-transition), visibility var(--brand-transition),
        transform var(--brand-transition), box-shadow var(--brand-transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.08);
    box-shadow: 0 14px 34px rgba(253, 121, 168, 0.65);
}

.back-to-top:active {
    transform: translateY(-2px) scale(1.02);
}

/* ---------- 滚动动画 ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(36px);
    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;
}

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

/* 交错延迟 */
.fade-in:nth-child(2) { transition-delay: 0.08s; }
.fade-in:nth-child(3) { transition-delay: 0.16s; }
.fade-in:nth-child(4) { transition-delay: 0.24s; }

/* ---------- 响应式 - 平板 ---------- */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.1rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .stat-number {
        font-size: 2.1rem;
    }

    .carousel-slide h3 {
        font-size: 1.45rem;
    }
}

/* ---------- 响应式 - 手机 ---------- */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .site-header {
        padding: 10px 0;
    }

    .header-inner {
        gap: 10px;
    }

    .logo a {
        font-size: 1.3rem;
        letter-spacing: 2px;
    }

    .logo svg {
        width: 32px;
        height: 32px;
    }

    .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 4px;
        background: var(--brand-card-bg);
        -webkit-backdrop-filter: blur(var(--glass-blur));
        backdrop-filter: blur(var(--glass-blur));
        padding: 14px;
        border-radius: var(--brand-radius);
        border: 1px solid var(--glass-border);
        margin-top: 8px;
        order: 4;
        box-shadow: 0 10px 30px var(--brand-shadow);
    }

    .nav-menu.open {
        display: flex;
        animation: slideDown 0.35s ease;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-12px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 12px 16px;
        border-radius: var(--brand-radius-sm);
        text-align: center;
    }

    .nav-menu a:hover {
        transform: none;
    }

    .nav-menu a::after {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
        order: 2;
    }

    .header-actions {
        order: 3;
        width: 100%;
        justify-content: space-between;
        margin-top: 6px;
    }

    .search-box {
        flex: 1;
        max-width: none;
    }

    .search-box input {
        width: 100%;
        flex: 1;
    }

    .search-box input:focus {
        width: 100%;
    }

    .hero {
        padding: 56px 0 44px;
        border-radius: 0 0 var(--brand-radius) var(--brand-radius);
        margin-bottom: 36px;
    }

    .hero h1 {
        font-size: 1.55rem;
        letter-spacing: 0;
    }

    .hero p {
        font-size: 0.94rem;
        margin-bottom: 24px;
    }

    .hero-actions {
        gap: 12px;
    }

    .btn {
        padding: 11px 24px;
        font-size: 0.92rem;
    }

    .section {
        margin-bottom: 44px;
    }

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

    .section-subtitle {
        font-size: 0.94rem;
        margin-bottom: 24px;
    }

    .carousel-slide {
        padding: 36px 22px;
    }

    .carousel-slide h3 {
        font-size: 1.2rem;
    }

    .carousel-slide p {
        font-size: 0.92rem;
    }

    .stats-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
        margin-bottom: 44px;
    }

    .stat-card {
        padding: 24px 14px;
    }

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

    .stat-label {
        font-size: 0.82rem;
    }

    .card-grid,
    .article-list,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .card {
        padding: 24px 20px;
    }

    .article-item {
        padding: 22px 20px;
    }

    .howto-step {
        padding: 24px 20px 24px 68px;
    }

    .howto-step::before {
        left: 16px;
        top: 24px;
        width: 36px;
        height: 36px;
        font-size: 0.95rem;
    }

    .howto-step h3 {
        font-size: 1.05rem;
    }

    .faq-question {
        padding: 16px 18px;
        font-size: 0.95rem;
    }

    .faq-answer {
        padding: 0 18px;
        font-size: 0.9rem;
    }

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

    .contact-card {
        padding: 22px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 26px;
    }

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

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 46px;
        height: 46px;
        font-size: 1.1rem;
    }
}

/* ---------- 响应式 - 小手机 ---------- */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }

    .hero {
        padding: 44px 0 36px;
    }

    .hero h1 {
        font-size: 1.3rem;
    }

    .hero p {
        font-size: 0.88rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .stats-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-card {
        padding: 20px 10px;
    }

    .stat-number {
        font-size: 1.45rem;
    }

    .stat-label {
        font-size: 0.76rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .carousel-slide {
        padding: 30px 16px;
    }

    .carousel-slide h3 {
        font-size: 1.05rem;
    }

    .carousel-dot {
        width: 10px;
        height: 10px;
    }

    .carousel-dot.active {
        width: 26px;
    }
}

/* ---------- 打印 ---------- */
@media print {
    .site-header,
    .back-to-top,
    .carousel-dots,
    .header-actions,
    .hero-actions,
    .mobile-menu-btn {
        display: none !important;
    }

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

    .card,
    .article-item,
    .faq-item,
    .howto-step,
    .contact-card {
        box-shadow: none;
        border: 1px solid #ddd;
        background: #fff;
    }

    .hero {
        background: #f0f0f0;
        color: #000;
    }
}

/* ---------- 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;
    }

    .fade-in {
        opacity: 1;
        transform: none;
    }
}

/* ---------- 高对比度模式 ---------- */
@media (prefers-contrast: high) {
    :root {
        --brand-border: rgba(0, 0, 0, 0.4);
        --brand-text-light: #333;
    }

    body.dark-mode {
        --brand-border: rgba(255, 255, 255, 0.4);
        --brand-text-light: #ccc;
    }
}

/* ---------- 焦点可见性 (无障碍) ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 3px solid var(--brand-accent);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ---------- 选中文本 ---------- */
::selection {
    background: var(--brand-accent);
    color: #fff;
}

::-moz-selection {
    background: var(--brand-accent);
    color: #fff;
}
```