```css
/* ==========================================================================
   喵漫画趣 - 短篇搞笑漫画，碎片时间轻松刷
   官网首页样式表
   品牌色: #FF8A3D / #FFB347 / #FF6B6B
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 基础重置与CSS变量
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 品牌色 */
    --brand-primary: #FF8A3D;
    --brand-secondary: #FFB347;
    --brand-accent: #FF6B6B;
    --brand-dark: #2D2A26;
    --brand-light: #FFF9F2;
    --brand-gray: #6B6560;
    --brand-border: #F0E8DF;

    /* 背景色 */
    --bg-body: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-soft: #FFF9F2;
    --bg-glass: rgba(255, 255, 255, 0.72);
    --bg-glass-border: rgba(255, 255, 255, 0.5);

    /* 文字色 */
    --text-main: #2D2A26;
    --text-secondary: #6B6560;
    --text-light: #9B9590;
    --text-inverse: #FFFFFF;

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(45, 42, 38, 0.06);
    --shadow-md: 0 4px 20px rgba(45, 42, 38, 0.08);
    --shadow-lg: 0 8px 40px rgba(45, 42, 38, 0.12);
    --shadow-glow: 0 6px 24px rgba(255, 138, 61, 0.35);

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 999px;

    /* 过渡 */
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* 字体 */
    --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* 暗色模式变量 */
[data-theme="dark"] {
    --brand-primary: #FF9F5A;
    --brand-secondary: #FFB347;
    --brand-accent: #FF7B7B;
    --brand-dark: #F5F0EA;
    --brand-light: #1E1C1A;
    --brand-gray: #B0A8A0;
    --brand-border: #3A3632;

    --bg-body: #141210;
    --bg-card: #1E1C1A;
    --bg-soft: #1A1816;
    --bg-glass: rgba(20, 18, 16, 0.72);
    --bg-glass-border: rgba(255, 255, 255, 0.08);

    --text-main: #F5F0EA;
    --text-secondary: #B0A8A0;
    --text-light: #7A746E;
    --text-inverse: #141210;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 6px 24px rgba(255, 159, 90, 0.3);
}

/* --------------------------------------------------------------------------
   2. 基础排版
   -------------------------------------------------------------------------- */
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.75;
    font-size: 16px;
    transition: background-color var(--transition), color var(--transition);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
    list-style: none;
}

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

/* 选中文字样式 */
::selection {
    background: rgba(255, 138, 61, 0.25);
    color: var(--text-main);
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--brand-border);
    border-radius: var(--radius-full);
}

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

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

/* --------------------------------------------------------------------------
   4. 导航吸顶 - 毛玻璃效果
   -------------------------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--brand-border);
    transition: background var(--transition), border-color var(--transition),
        box-shadow var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.35rem;
    color: var(--text-main);
    flex-shrink: 0;
    transition: transform var(--transition);
}

.logo:hover {
    transform: scale(1.03);
    color: var(--text-main);
}

.logo svg {
    width: 36px;
    height: 36px;
    transition: transform var(--transition);
}

.logo:hover svg {
    transform: rotate(-8deg) scale(1.05);
}

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

/* 主导航 */
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.main-nav::-webkit-scrollbar {
    display: none;
}

.main-nav a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: var(--radius-full);
    white-space: nowrap;
    transition: all var(--transition);
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--brand-primary);
    background: var(--bg-soft);
}

/* 头部操作区 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* 搜索框 */
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-soft);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-full);
    padding: 6px 14px;
    gap: 6px;
    transition: all var(--transition);
}

.search-box:focus-within {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(255, 138, 61, 0.12);
    background: var(--bg-card);
}

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

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

.search-box svg {
    width: 16px;
    height: 16px;
    color: var(--text-light);
    flex-shrink: 0;
    transition: color var(--transition);
}

.search-box:focus-within svg {
    color: var(--brand-primary);
}

/* 主题切换 & 菜单按钮 */
.theme-toggle,
.menu-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 1px solid var(--brand-border);
    background: var(--bg-card);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    flex-shrink: 0;
}

.theme-toggle:hover,
.menu-toggle:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.theme-toggle:active,
.menu-toggle:active {
    transform: translateY(0) scale(0.95);
}

.theme-toggle svg,
.menu-toggle svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-slow);
}

.theme-toggle:hover svg {
    transform: rotate(30deg);
}

.menu-toggle {
    display: none;
}

/* --------------------------------------------------------------------------
   5. 移动菜单 - 毛玻璃
   -------------------------------------------------------------------------- */
.mobile-menu {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    z-index: 999;
    padding: 20px;
    overflow-y: auto;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition), transform var(--transition);
}

.mobile-menu.open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu a {
    display: block;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-weight: 600;
    font-size: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    transition: all var(--transition);
}

.mobile-menu a:hover,
.mobile-menu a:active {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    border-color: transparent;
    transform: translateX(6px);
}

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

.breadcrumb a {
    color: var(--text-secondary);
    transition: color var(--transition);
}

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

.breadcrumb span {
    color: var(--text-light);
}

/* --------------------------------------------------------------------------
   7. Banner轮播 - 渐变背景
   -------------------------------------------------------------------------- */
.banner {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #FFF4E8 0%, #FFE8D4 50%, #FFDCC0 100%);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    margin-bottom: 40px;
}

[data-theme="dark"] .banner {
    background: linear-gradient(135deg, #2A2018 0%, #1E1610 50%, #2A1A0E 100%);
}

/* 装饰性光斑 */
.banner::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 138, 61, 0.18) 0%, transparent 70%);
    pointer-events: none;
}

.banner::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -60px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.14) 0%, transparent 70%);
    pointer-events: none;
}

.banner-slides {
    position: relative;
    min-height: 380px;
}

.banner-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 0.8s ease;
    pointer-events: none;
}

.banner-slide.active {
    opacity: 1;
    pointer-events: auto;
    position: relative;
}

.banner-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    padding: 60px 0;
    width: 100%;
    position: relative;
    z-index: 2;
}

.banner-text h1 {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.banner-text h1 em {
    font-style: normal;
    color: var(--brand-primary);
    position: relative;
    display: inline-block;
}

.banner-text h1 em::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, rgba(255, 138, 61, 0.25), rgba(255, 107, 107, 0.25));
    border-radius: 4px;
    z-index: -1;
}

.banner-text p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.banner-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--brand-accent), var(--brand-primary));
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 0;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary > * {
    position: relative;
    z-index: 1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(255, 138, 61, 0.45);
    color: #fff;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 2px solid var(--brand-border);
}

.btn-outline:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
    background: var(--bg-card);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-outline:active {
    transform: translateY(0);
}

/* Banner插画 */
.banner-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.banner-visual svg {
    width: 100%;
    max-width: 400px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(255, 138, 61, 0.2));
    animation: floatY 6s ease-in-out infinite;
}

@keyframes floatY {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* 轮播指示点 */
.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.banner-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 138, 61, 0.3);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    padding: 0;
}

.banner-dot:hover {
    background: rgba(255, 138, 61, 0.6);
}

.banner-dot.active {
    background: var(--brand-primary);
    transform: scale(1.3);
    box-shadow: 0 0 0 4px rgba(255, 138, 61, 0.15);
}

/* --------------------------------------------------------------------------
   8. 数据统计
   -------------------------------------------------------------------------- */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: -20px auto 50px;
    max-width: 1100px;
    padding: 0 20px;
    position: relative;
    z-index: 5;
}

.stat-item {
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-md);
    padding: 24px 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--brand-primary);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--brand-primary);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* --------------------------------------------------------------------------
   9. 通用区块
   -------------------------------------------------------------------------- */
.section {
    padding: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 44px;
}

.section-header h2 {
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
    letter-spacing: -0.02em;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
    transition: width var(--transition-slow);
}

.section-header:hover h2::after {
    width: 100px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 640px;
    margin: 16px auto 0;
}

/* --------------------------------------------------------------------------
   10. 品牌介绍
   -------------------------------------------------------------------------- */
.brand-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.brand-intro-text h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-main);
    letter-spacing: -0.01em;
}

.brand-intro-text p {
    color: var(--text-secondary);
    margin-bottom: 14px;
    line-height: 1.9;
}

.brand-intro-text p:last-child {
    margin-bottom: 0;
}

.brand-intro-visual svg {
    width: 100%;
    max-width: 440px;
    margin: 0 auto;
    filter: drop-shadow(0 16px 32px rgba(255, 138, 61, 0.15));
}

/* --------------------------------------------------------------------------
   11. 产品优势卡片
   -------------------------------------------------------------------------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

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

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--bg-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    transition: all var(--transition);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    transform: rotate(-6deg) scale(1.05);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--brand-primary);
    transition: color var(--transition);
}

.feature-card:hover .feature-icon svg {
    color: #fff;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-main);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   12. 解决方案
   -------------------------------------------------------------------------- */
.solution-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.solution-item {
    display: flex;
    gap: 18px;
    background: var(--bg-soft);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: all var(--transition);
    border: 1px solid transparent;
}

.solution-item:hover {
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    border-color: var(--brand-border);
    transform: translateX(4px);
}

.solution-num {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--brand-primary);
    opacity: 0.5;
    line-height: 1;
    flex-shrink: 0;
    min-width: 40px;
    transition: opacity var(--transition), transform var(--transition);
}

.solution-item:hover .solution-num {
    opacity: 1;
    transform: scale(1.1);
}

.solution-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-main);
}

.solution-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   13. 文章列表
   -------------------------------------------------------------------------- */
.article-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.article-card::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(--transition);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--brand-primary);
}

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

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

.article-tag {
    background: var(--bg-soft);
    color: var(--brand-primary);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.75rem;
    transition: all var(--transition);
}

.article-card:hover .article-tag {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
}

.article-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-main);
    line-height: 1.5;
    transition: color var(--transition);
}

.article-card:hover h3 {
    color: var(--brand-primary);
}

.article-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
    flex: 1;
    margin-bottom: 16px;
}

.article-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--brand-primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    align-self: flex-start;
}

.article-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition);
}

.article-link:hover svg {
    transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   14. FAQ
   -------------------------------------------------------------------------- */
.faq-list {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition);
}

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

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    text-align: left;
    font-family: inherit;
    transition: color var(--transition);
}

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

.faq-question svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform var(--transition);
    color: var(--brand-primary);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 400px;
    padding: 0 24px 20px;
}

.faq-answer p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* --------------------------------------------------------------------------
   15. HowTo
   -------------------------------------------------------------------------- */
.howto-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: step;
}

.howto-step {
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    position: relative;
    counter-increment: step;
    transition: all var(--transition);
    margin-top: 14px;
}

.howto-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--brand-primary);
}

.howto-step::before {
    content: counter(step);
    position: absolute;
    top: -14px;
    left: 24px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    font-weight: 800;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(255, 138, 61, 0.35);
    transition: transform var(--transition);
}

.howto-step:hover::before {
    transform: scale(1.15) rotate(-8deg);
}

.howto-step h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-main);
    margin-top: 8px;
}

.howto-step p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   16. 客户案例
   -------------------------------------------------------------------------- */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '"';
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 5rem;
    line-height: 1;
    color: var(--brand-primary);
    opacity: 0.08;
    font-family: Georgia, serif;
    pointer-events: none;
}

.case-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--brand-primary);
}

.case-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 1.1rem;
    margin-bottom: 16px;
    transition: transform var(--transition);
    box-shadow: 0 4px 12px rgba(255, 138, 61, 0.25);
}

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

.case-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-main);
}

.case-role {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 12px;
}

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

.case-rating {
    display: flex;
    gap: 2px;
    margin-top: 12px;
    color: #FFB347;
}

.case-rating svg {
    width: 16px;
    height: 16px;
}

/* --------------------------------------------------------------------------
   17. 联系我们
   -------------------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 12px;
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.contact-item:hover {
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--bg-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition);
}

.contact-item:hover .contact-icon {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    transform: scale(1.05);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    color: var(--brand-primary);
    transition: color var(--transition);
}

.contact-item:hover .contact-icon svg {
    color: #fff;
}

.contact-item h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 2px;
    color: var(--text-main);
}

.contact-item p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.contact-map {
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-md);
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: all var(--transition);
}

.contact-map:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--brand-primary);
}

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

.contact-map p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 8px;
}

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

/* --------------------------------------------------------------------------
   18. 页脚
   -------------------------------------------------------------------------- */
.site-footer {
    background: var(--bg-soft);
    border-top: 1px solid var(--brand-border);
    padding: 50px 0 30px;
    margin-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-main);
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 16px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--brand-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.footer-social a:hover {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    color: #fff;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.footer-social svg {
    width: 18px;
    height: 18px;
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all var(--transition);
    display: inline-block;
}

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

.footer-bottom {
    border-top: 1px solid var(--brand-border);
    padding-top: 24px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-size: 0.82rem;
    color: var(--text-light);
}

.footer-bottom-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom-links a {
    color: var(--text-light);
    transition: color var(--transition);
}

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

/* --------------------------------------------------------------------------
   19. 返回顶部
   -------------------------------------------------------------------------- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    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;
    box-shadow: 0 6px 20px rgba(255, 138, 61, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 900;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(255, 138, 61, 0.5);
}

.back-to-top:active {
    transform: translateY(0) scale(0.95);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

/* --------------------------------------------------------------------------
   20. 滚动动画
   -------------------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    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);
}

/* 交错延迟 */
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }
.reveal:nth-child(5) { transition-delay: 0.32s; }
.reveal:nth-child(6) { transition-delay: 0.4s; }

/* --------------------------------------------------------------------------
   21. 响应式布局
   -------------------------------------------------------------------------- */

/* 大屏平板 */
@media (max-width: 1024px) {
    .banner-text h1 {
        font-size: 2rem;
    }

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

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

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

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

/* 平板 */
@media (max-width: 900px) {
    .main-nav {
        gap: 0;
    }

    .main-nav a {
        padding: 8px 10px;
        font-size: 0.85rem;
    }

    .search-box input {
        width: 90px;
    }
}

/* 手机 */
@media (max-width: 768px) {
    html {
        scroll-padding-top: 76px;
    }

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .search-box {
        display: none;
    }

    .header-inner {
        height: 60px;
    }

    .mobile-menu {
        top: 60px;
    }

    .logo {
        font-size: 1.2rem;
    }

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

    .banner-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 40px 0;
        gap: 24px;
    }

    .banner-visual {
        order: -1;
    }

    .banner-visual svg {
        max-width: 260px;
        animation: none;
    }

    .banner-text h1 {
        font-size: 1.7rem;
    }

    .banner-text p {
        font-size: 0.95rem;
    }

    .banner-actions {
        justify-content: center;
    }

    .banner-slides {
        min-height: 480px;
    }

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        margin-bottom: 36px;
    }

    .brand-intro {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .brand-intro-visual {
        order: -1;
    }

    .brand-intro-visual svg {
        max-width: 320px;
    }

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

    .solution-list {
        grid-template-columns: 1fr;
    }

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

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

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

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

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

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

    .footer-bottom-links {
        justify-content: center;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .section {
        padding: 44px 0;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }

    .back-to-top svg {
        width: 18px;
        height: 18px;
    }

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

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

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

    .article-card {
        padding: 22px;
    }

    .feature-card {
        padding: 26px 20px;
    }

    .solution-item {
        padding: 22px;
    }

    .contact-map {
        padding: 22px;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .banner-text h1 {
        font-size: 1.45rem;
    }

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

    .banner-slides {
        min-height: 520px;
    }

    .stat-item {
        padding: 18px 12px;
    }

    .stat-number {
        font-size: 1.6rem;
    }

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

    .btn {
        padding: 10px 22px;
        font-size: 0.88rem;
    }

    .section-header h2 {
        font-size: 1.35rem;
    }

    .section-header p {
        font-size: 0.9rem;
    }

    .feature-card h3,
    .article-card h3,
    .solution-content h3 {
        font-size: 1rem;
    }

    .case-card p,
    .article-card p,
    .feature-card p {
        font-size: 0.85rem;
    }

    .footer-brand h3 {
        font-size: 1.1rem;
    }
}

/* --------------------------------------------------------------------------
   22. 打印样式
   -------------------------------------------------------------------------- */
@media print {
    .site-header,
    .mobile-menu,
    .back-to-top,
    .banner-dots,
    .banner-visual,
    .header-actions {
        display: none !important;
    }

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

    .banner {
        background: none;
        border-radius: 0;
    }

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

/* --------------------------------------------------------------------------
   23. 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;
    }
}

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

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
    outline: none;
}
```