```css
/* ==========================================================================
   饼干姐姐 - 经典文艺片与怀旧电影，温暖回忆
   网站: hxghgt.cn
   风格: 怀旧暖调 + 毛玻璃 + 渐变
   ========================================================================== */

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

:root {
  /* 主色调 - 怀旧暖棕 */
  --color-primary: #8B5A2B;
  --color-primary-dark: #6B3F1A;
  --color-primary-light: #C49A6C;
  --color-secondary: #D4A574;
  --color-accent: #A0522D;
  --color-gold: #F0C88A;

  /* 背景色 */
  --color-bg: #FDF8F2;
  --color-bg-alt: #F5EDE3;
  --color-bg-glass: rgba(253, 248, 242, 0.72);
  --color-bg-glass-strong: rgba(253, 248, 242, 0.88);

  /* 文字色 */
  --color-text: #2C1810;
  --color-text-light: #5C4A3A;
  --color-text-muted: #8A7A6A;
  --color-white: #FFFFFF;

  /* 边框与阴影 */
  --color-border: #E0D5C8;
  --color-border-light: rgba(224, 213, 200, 0.5);
  --color-shadow: rgba(139, 90, 43, 0.12);
  --color-shadow-hover: rgba(139, 90, 43, 0.22);
  --color-shadow-strong: rgba(139, 90, 43, 0.32);

  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #8B5A2B 0%, #D4A574 100%);
  --gradient-warm: linear-gradient(135deg, #3D2B1F 0%, #5C3D2E 50%, #8B5A2B 100%);
  --gradient-gold: linear-gradient(135deg, #F0C88A 0%, #D4A574 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9) 0%, rgba(245,237,227,0.6) 100%);

  /* 字体 */
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-heading: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* 过渡 */
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* 布局 */
  --max-width: 1200px;
  --header-height: 68px;

  /* 毛玻璃 */
  --glass-blur: blur(16px);
  --glass-blur-strong: blur(24px);
}

/* --------------------------------------------------------------------------
   2. 暗黑模式
   -------------------------------------------------------------------------- */
body.dark-mode {
  --color-bg: #1A1410;
  --color-bg-alt: #241C16;
  --color-bg-glass: rgba(26, 20, 16, 0.72);
  --color-bg-glass-strong: rgba(26, 20, 16, 0.88);

  --color-text: #E8DDD3;
  --color-text-light: #C4B5A5;
  --color-text-muted: #9A8A7A;
  --color-white: #2A201A;

  --color-border: #3A2E24;
  --color-border-light: rgba(58, 46, 36, 0.5);
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-shadow-hover: rgba(0, 0, 0, 0.45);
  --color-shadow-strong: rgba(0, 0, 0, 0.6);

  --gradient-card: linear-gradient(145deg, rgba(42,32,26,0.9) 0%, rgba(36,28,22,0.6) 100%);
}

/* --------------------------------------------------------------------------
   3. HTML & Body
   -------------------------------------------------------------------------- */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition), color var(--transition);
  background-image:
    radial-gradient(ellipse at 10% 0%, rgba(212, 165, 116, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 100%, rgba(139, 90, 43, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
}

body.dark-mode {
  background-image:
    radial-gradient(ellipse at 10% 0%, rgba(212, 165, 116, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 100%, rgba(139, 90, 43, 0.04) 0%, transparent 50%);
}

/* 选中文字 */
::selection {
  background: var(--color-primary-light);
  color: #fff;
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-primary-light);
  border-radius: 5px;
  border: 2px solid var(--color-bg-alt);
}

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

/* --------------------------------------------------------------------------
   4. 跳转链接（无障碍）
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 12px 24px;
  z-index: 10000;
  transition: top 0.3s;
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

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

/* --------------------------------------------------------------------------
   6. 头部导航（毛玻璃效果）
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-bg-glass-strong);
  -webkit-backdrop-filter: var(--glass-blur-strong);
  backdrop-filter: var(--glass-blur-strong);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: 0 2px 20px var(--color-shadow);
  transition: box-shadow var(--transition), background var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 20px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.logo:hover {
  transform: scale(1.02);
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(139, 90, 43, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}

.logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.05);
  box-shadow: 0 6px 20px rgba(139, 90, 43, 0.45);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.5px;
  line-height: 1.2;
  display: block;
  transition: color var(--transition);
}

body.dark-mode .logo-text {
  color: var(--color-gold);
}

.logo-sub {
  font-size: 11px;
  color: var(--color-text-muted);
  display: block;
  line-height: 1.2;
  font-weight: 400;
  letter-spacing: 0.3px;
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-light);
  font-size: 14px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
  font-weight: 500;
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition), left var(--transition);
}

.main-nav a:hover,
.main-nav a:focus {
  color: var(--color-primary);
  background: var(--color-bg-alt);
  outline: none;
}

.main-nav a:hover::after,
.main-nav a:focus::after {
  width: 60%;
  left: 20%;
}

/* 头部操作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* 搜索框（毛玻璃） */
.search-box {
  display: flex;
  align-items: center;
  background: var(--color-bg-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 0 6px 0 16px;
  height: 40px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 90, 43, 0.12);
  background: var(--color-bg-glass-strong);
}

.search-box input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 13px;
  color: var(--color-text);
  width: 140px;
  font-family: var(--font-body);
  transition: width var(--transition);
}

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

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

.search-box button {
  border: none;
  background: var(--color-primary);
  color: #fff;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
}

.search-box button:hover {
  background: var(--color-primary-dark);
  transform: scale(1.08);
}

/* 主题切换按钮 */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all var(--transition);
  color: var(--color-text);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: rotate(20deg) scale(1.05);
  box-shadow: 0 4px 16px rgba(139, 90, 43, 0.3);
}

/* 移动菜单按钮 */
.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 10px;
  transition: background var(--transition);
}

.mobile-menu-btn:hover {
  background: var(--color-bg-alt);
}

.mobile-menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* --------------------------------------------------------------------------
   7. 面包屑
   -------------------------------------------------------------------------- */
.breadcrumb {
  padding: 16px 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

.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::after {
  content: "›";
  color: var(--color-text-muted);
  font-size: 14px;
}

.breadcrumb li:last-child::after {
  display: none;
}

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

.breadcrumb a:hover {
  text-decoration: underline;
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   8. 主视觉 Hero（渐变 + 毛玻璃装饰）
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--gradient-warm);
  color: #fff;
  padding: 80px 0 70px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(212, 165, 116, 0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(240, 200, 138, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

/* 装饰性光斑 */
.hero::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 200, 138, 0.15) 0%, transparent 70%);
  pointer-events: none;
  animation: floatGlow 8s ease-in-out infinite;
}

@keyframes floatGlow {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.6; }
  50% { transform: translate(-30px, 20px) scale(1.1); opacity: 0.9; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.hero-content h1 {
  font-size: 38px;
  line-height: 1.35;
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: 1px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-content h1 .highlight {
  color: var(--color-gold);
  position: relative;
  display: inline-block;
}

.hero-content h1 .highlight::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(240, 200, 138, 0.25);
  border-radius: 4px;
  z-index: -1;
}

.hero-content p {
  font-size: 16px;
  line-height: 1.9;
  opacity: 0.92;
  margin-bottom: 32px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 28px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
  position: relative;
  overflow: hidden;
}

.btn::before {
  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::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--gradient-gold);
  color: #3D2B1F;
  box-shadow: 0 4px 16px rgba(240, 200, 138, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(240, 200, 138, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Hero 插图 */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-svg {
  width: 100%;
  max-width: 420px;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.35));
  animation: heroFloat 6s ease-in-out infinite;
}

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

/* --------------------------------------------------------------------------
   9. 轮播 Banner
   -------------------------------------------------------------------------- */
.banner-carousel {
  position: relative;
  margin-top: 48px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 40px var(--color-shadow-strong);
  border: 1px solid var(--color-border-light);
}

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

.carousel-slide {
  min-width: 100%;
  position: relative;
}

.carousel-slide svg {
  display: block;
  width: 100%;
  height: auto;
}

.carousel-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
  padding: 8px 14px;
  background: rgba(0, 0, 0, 0.2);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-radius: 20px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
}

.carousel-dot:hover {
  background: rgba(255, 255, 255, 0.8);
}

.carousel-dot.active {
  background: #fff;
  width: 28px;
  border-radius: 6px;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* --------------------------------------------------------------------------
   10. 数字统计（毛玻璃卡片）
   -------------------------------------------------------------------------- */
.stats-bar {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}

.stats-bar::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(212, 165, 116, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(139, 90, 43, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.stat-item {
  padding: 20px 12px;
  border-radius: var(--radius-md);
  background: var(--color-bg-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px var(--color-shadow-hover);
}

.stat-item .stat-number {
  font-size: 34px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-item .stat-number span {
  font-size: 16px;
  color: var(--color-text-muted);
  font-weight: 400;
  margin-left: 2px;
}

.stat-item .stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 6px;
  letter-spacing: 0.5px;
}

/* --------------------------------------------------------------------------
   11. 区块通用
   -------------------------------------------------------------------------- */
.section {
  padding: 72px 0;
  position: relative;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-alt::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 0% 0%, rgba(212, 165, 116, 0.06) 0%, transparent 40%),
    radial-gradient(ellipse at 100% 100%, rgba(139, 90, 43, 0.05) 0%, transparent 40%);
  pointer-events: none;
}

.section-header {
  text-align: center;
  margin-bottom: 52px;
  position: relative;
  z-index: 1;
}

.section-header h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  position: relative;
  display: inline-block;
  letter-spacing: 0.5px;
}

.section-header h2::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
  margin: 14px auto 0;
  box-shadow: 0 2px 8px rgba(139, 90, 43, 0.3);
}

.section-header p {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   12. 品牌介绍
   -------------------------------------------------------------------------- */
.brand-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.brand-intro-text h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text);
  position: relative;
  padding-left: 16px;
}

.brand-intro-text h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.brand-intro-text p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

.brand-intro-text ul {
  list-style: none;
  margin-top: 24px;
}

.brand-intro-text ul li {
  padding: 10px 0;
  padding-left: 30px;
  position: relative;
  font-size: 14px;
  color: var(--color-text-light);
  transition: transform var(--transition), color var(--transition);
}

.brand-intro-text ul li:hover {
  transform: translateX(4px);
  color: var(--color-primary);
}

.brand-intro-text ul li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 14px;
  transition: transform var(--transition);
}

.brand-intro-text ul li:hover::before {
  transform: rotate(90deg) scale(1.2);
}

.brand-intro-text ul li strong {
  color: var(--color-text);
  font-weight: 600;
}

.brand-intro-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.brand-intro-visual svg {
  animation: brandFloat 8s ease-in-out infinite;
  filter: drop-shadow(0 16px 32px var(--color-shadow));
}

@keyframes brandFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-16px) rotate(3deg); }
}

/* --------------------------------------------------------------------------
   13. 卡片网格（毛玻璃 + hover动画）
   -------------------------------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  position: relative;
  z-index: 1;
}

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

.card {
  background: var(--gradient-card);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* 卡片顶部渐变条 */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

/* 卡片光晕 */
.card::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 165, 116, 0.15) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

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

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px var(--color-shadow-hover);
  border-color: var(--color-primary-light);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 26px;
  color: #fff;
  box-shadow: 0 6px 16px rgba(139, 90, 43, 0.25);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  z-index: 1;
}

.card:hover .card-icon {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 10px 24px rgba(139, 90, 43, 0.4);
}

.card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
  position: relative;
  z-index: 1;
  transition: color var(--transition);
}

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

.card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.85;
  position: relative;
  z-index: 1;
  flex: 1;
}

.card-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 12px;
  background: var(--gradient-gold);
  color: #3D2B1F;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(240, 200, 138, 0.4);
  z-index: 2;
}

/* --------------------------------------------------------------------------
   14. 解决方案
   -------------------------------------------------------------------------- */
.solution-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 56px;
  position: relative;
  z-index: 1;
}

.solution-block:last-child {
  margin-bottom: 0;
}

.solution-block.reverse {
  direction: rtl;
}

.solution-block.reverse > * {
  direction: ltr;
}

.solution-text h3 {
  font-size: 21px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text);
  position: relative;
  padding-left: 16px;
}

.solution-text h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.solution-text p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 14px;
}

.solution-text ol {
  padding-left: 0;
  margin-top: 16px;
  list-style: none;
  counter-reset: sol-counter;
}

.solution-text ol li {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 12px;
  line-height: 1.8;
  padding-left: 36px;
  position: relative;
  counter-increment: sol-counter;
  transition: transform var(--transition), color var(--transition);
}

.solution-text ol li:hover {
  transform: translateX(4px);
  color: var(--color-text);
}

.solution-text ol li::before {
  content: counter(sol-counter);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-primary-light);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.solution-text ol li:hover::before {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.solution-text ol li strong {
  color: var(--color-text);
  font-weight: 600;
}

.solution-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.solution-visual svg {
  transition: transform var(--transition-slow);
  filter: drop-shadow(0 12px 24px var(--color-shadow));
}

.solution-visual svg:hover {
  transform: scale(1.04) rotate(1deg);
}

/* --------------------------------------------------------------------------
   15. 文章列表
   -------------------------------------------------------------------------- */
.article-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  position: relative;
  z-index: 1;
}

.article-card {
  background: var(--gradient-card);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.article-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

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

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 36px var(--color-shadow-hover);
  border-color: var(--color-primary-light);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.article-meta .category {
  background: var(--color-bg-alt);
  color: var(--color-primary);
  padding: 3px 12px;
  border-radius: 10px;
  font-weight: 600;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.article-card:hover .article-meta .category {
  background: var(--color-primary);
  color: #fff;
}

.article-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
  line-height: 1.55;
  transition: color var(--transition);
}

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

.article-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.85;
  flex: 1;
  margin-bottom: 18px;
}

.article-link {
  font-size: 13px;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition), color var(--transition);
  align-self: flex-start;
}

.article-link:hover {
  gap: 10px;
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   16. FAQ 手风琴
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.faq-item {
  background: var(--gradient-card);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

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

.faq-item.open {
  border-color: var(--color-primary-light);
  box-shadow: 0 8px 28px var(--color-shadow-hover);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  font-family: var(--font-body);
  gap: 16px;
  transition: color var(--transition);
}

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

.faq-question .arrow {
  font-size: 12px;
  transition: transform var(--transition);
  flex-shrink: 0;
  color: var(--color-primary);
  display: inline-block;
}

.faq-item.open .faq-question .arrow {
  transform: rotate(180deg);
}

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

.faq-item.open .faq-answer {
  max-height: 600px;
  padding: 0 24px 22px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.9;
  padding-top: 4px;
  border-top: 1px dashed var(--color-border);
  padding-top: 16px;
}

/* --------------------------------------------------------------------------
   17. HowTo 步骤
   -------------------------------------------------------------------------- */
.howto-container {
  max-width: 820px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.howto-step {
  display: flex;
  gap: 22px;
  margin-bottom: 32px;
  position: relative;
  transition: transform var(--transition);
}

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

.howto-step:last-child {
  margin-bottom: 0;
}

.howto-step::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 48px;
  bottom: -32px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary-light), var(--color-border));
  border-radius: 1px;
}

.howto-step:last-child::before {
  display: none;
}

.howto-num {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 17px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 6px 16px rgba(139, 90, 43, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}

.howto-step:hover .howto-num {
  transform: scale(1.12) rotate(-8deg);
  box-shadow: 0 10px 24px rgba(139, 90, 43, 0.45);
}

.howto-content {
  flex: 1;
  padding-top: 4px;
}

.howto-content h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
  transition: color var(--transition);
}

.howto-step:hover .howto-content h4 {
  color: var(--color-primary);
}

.howto-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.85;
}

/* --------------------------------------------------------------------------
   18. 客户评价
   -------------------------------------------------------------------------- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  position: relative;
  z-index: 1;
}

.testimonial-card {
  background: var(--gradient-card);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  position: relative;
  transition: all var(--transition);
  overflow: hidden;
}

.testimonial-card::before {
  content: "\201C";
  position: absolute;
  top: 8px;
  left: 22px;
  font-size: 64px;
  color: var(--color-primary-light);
  opacity: 0.25;
  font-family: Georgia, serif;
  line-height: 1;
  transition: opacity var(--transition), transform var(--transition);
}

.testimonial-card:hover::before {
  opacity: 0.45;
  transform: scale(1.1);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 36px var(--color-shadow-hover);
  border-color: var(--color-primary-light);
}

.testimonial-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
  padding-top: 18px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  z-index: 1;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 17px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(139, 90, 43, 0.25);
  transition: transform var(--transition);
}

.testimonial-card:hover .author-avatar {
  transform: scale(1.1);
}

.author-info .name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.author-info .role {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   19. 联系我们
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  position: relative;
  z-index: 1;
}

.contact-info h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 22px;
  color: var(--color-text);
  position: relative;
  padding-left: 16px;
}

.contact-info h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.contact-list {
  list-style: none;
}

.contact-list li {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-light);
  align-items: flex-start;
  transition: transform var(--transition), padding-left var(--transition);
}

.contact-list li:hover {
  transform: translateX(4px);
  padding-left: 8px;
}

.contact-list li:last-child {
  border-bottom: none;
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
  color: var(--color-primary);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.contact-list li:hover .contact-icon {
  background: var(--color-primary);
  color: #fff;
  transform: scale(1.08);
}

.contact-list strong {
  display: block;
  color: var(--color-text);
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 600;
}

/* 联系表单（毛玻璃） */
.contact-form {
  background: var(--gradient-card);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: 0 8px 28px var(--color-shadow);
}

.contact-form h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 22px;
  color: var(--color-text);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 90, 43, 0.12);
  background: var(--color-white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   20. 页脚
   -------------------------------------------------------------------------- */
.site-footer {
  background: linear-gradient(180deg, #2C1810 0%, #1A0F0A 100%);
  color: #C4B5A5;
  padding: 64px 0 0;
  position: relative;
  overflow: hidden;
}

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

.site-footer::after {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 200, 138, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 44px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  z-index: 1;
}

.footer-brand .logo-text {
  color: var(--color-gold);
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 4px;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.9;
  margin-top: 16px;
  color: #9A8A7A;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #E8DDD3;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--gradient-gold);
  border-radius: 1px;
}

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

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: #9A8A7A;
  text-decoration: none;
  font-size: 13px;
  transition: color var(--transition), padding-left var(--transition);
  display: inline-block;
  position: relative;
}

.footer-col ul li a::before {
  content: "›";
  position: absolute;
  left: -14px;
  opacity: 0;
  transition: opacity var(--transition), left var(--transition);
  color: var(--color-gold);
}

.footer-col ul li a:hover {
  color: var(--color-gold);
  padding-left: 8px;
}

.footer-col ul li a:hover::before {
  opacity: 1;
  left: -6px;
}

.footer-contact p {
  font-size: 13px;
  line-height: 1.9;
  color: #9A8A7A;
  margin-bottom: 10px;
  transition: color var(--transition);
}

.footer-contact p:hover {
  color: #C4B5A5;
}

.footer-bottom {
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 12px;
  color: #7A6A5A;
  position: relative;
  z-index: 1;
}

.footer-bottom a {
  color: #9A8A7A;
  text-decoration: none;
  transition: color var(--transition);
}

.footer-bottom a:hover {
  color: var(--color-gold);
}

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

/* --------------------------------------------------------------------------
   21. 返回顶部
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 6px 20px rgba(139, 90, 43, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: all var(--transition);
  z-index: 999;
}

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

.back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 12px 32px rgba(139, 90, 43, 0.55);
}

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

/* --------------------------------------------------------------------------
   22. 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);
}

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

/* 延迟动画 */
.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; }

/* --------------------------------------------------------------------------
   23. 图片懒加载
   -------------------------------------------------------------------------- */
img[loading="lazy"],
svg[data-lazy] {
  opacity: 0;
  transition: opacity 0.6s ease;
}

img[loading="lazy"].loaded,
svg[data-lazy].loaded {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   24. 响应式 - 平板 (max-width: 1024px)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 36px;
  }

  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-visual {
    order: -1;
  }

  .hero-svg {
    max-width: 320px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .brand-intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .solution-block {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .solution-block.reverse {
    direction: ltr;
  }

  .solution-visual {
    order: -1;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .section {
    padding: 60px 0;
  }

  .section-header h2 {
    font-size: 26px;
  }
}

/* --------------------------------------------------------------------------
   25. 响应式 - 手机 (max-width: 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .container {
    padding: 0 16px;
  }

  /* 移动导航 */
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg-glass-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    backdrop-filter: var(--glass-blur-strong);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 32px var(--color-shadow-strong);
    gap: 4px;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
  }

  .main-nav.open {
    display: flex;
    animation: slideDown 0.3s ease;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .main-nav a {
    width: 100%;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
  }

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

  .mobile-menu-btn {
    display: flex;
  }

  .search-box {
    display: none;
  }

  .logo-text {
    font-size: 17px;
  }

  .logo-sub {
    font-size: 10px;
  }

  .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 19px;
  }

  /* Hero */
  .hero {
    padding: 48px 0 40px;
  }

  .hero-content h1 {
    font-size: 26px;
    letter-spacing: 0.5px;
  }

  .hero-content p {
    font-size: 14px;
  }

  .hero-svg {
    max-width: 260px;
  }

  .btn {
    padding: 11px 22px;
    font-size: 14px;
  }

  /* 轮播 */
  .banner-carousel {
    margin-top: 32px;
    border-radius: var(--radius-md);
  }

  .carousel-dots {
    bottom: 12px;
    padding: 6px 10px;
  }

  /* 统计 */
  .stats-bar {
    padding: 28px 0;
  }

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

  .stat-item {
    padding: 16px 10px;
  }

  .stat-item .stat-number {
    font-size: 26px;
  }

  /* 区块 */
  .section {
    padding: 44px 0;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section-header h2 {
    font-size: 22px;
  }

  .section-header p {
    font-size: 14px;
  }

  /* 卡片 */
  .card-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .card {
    padding: 24px 20px;
  }

  .card-icon {
    width: 48px;
    height: 48px;
    font-size: 22px;
  }

  /* 文章 */
  .article-list {
    grid-template-columns: 1fr;
    gap: 18px;
  }

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

  /* 评价 */
  .testimonial-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .testimonial-card {
    padding: 26px 22px;
  }

  /* FAQ */
  .faq-question {
    padding: 16px 18px;
    font-size: 14px;
  }

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

  /* HowTo */
  .howto-step {
    gap: 16px;
    margin-bottom: 26px;
  }

  .howto-num {
    width: 40px;
    height: 40px;
    font-size: 15px;
  }

  .howto-step::before {
    left: 19px;
    top: 42px;
  }

  /* 联系 */
  .contact-form {
    padding: 24px 20px;
  }

  /* 页脚 */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

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

  /* 返回顶部 */
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
    font-size: 18px;
  }

  /* 面包屑 */
  .breadcrumb {
    padding: 12px 0;
    font-size: 12px;
  }
}

/* --------------------------------------------------------------------------
   26. 响应式 - 小手机 (max-width: 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-item .stat-number {
    font-size: 22px;
  }

  .stat-item .stat-label {
    font-size: 12px;
  }

  .hero-content h1 {
    font-size: 22px;
  }

  .hero-content p {
    font-size: 13px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    padding: 10px 20px;
    font-size: 13px;
    width: 100%;
    justify-content: center;
  }

  .section-header h2 {
    font-size: 20px;
  }

  .section-header h2::after {
    width: 40px;
  }

  .card h3 {
    font-size: 16px;
  }

  .card p {
    font-size: 13px;
  }

  .article-card h3 {
    font-size: 15px;
  }

  .testimonial-card p {
    font-size: 13px;
  }

  .footer-brand .logo-text {
    font-size: 17px;
  }

  .footer-col h4 {
    font-size: 13px;
  }

  .footer-col ul li a,
  .footer-contact p {
    font-size: 12px;
  }
}

/* --------------------------------------------------------------------------
   27. 减少动画偏好（无障碍）
   -------------------------------------------------------------------------- */
@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;
  }

  .hero-svg,
  .brand-intro-visual svg,
  .hero::after {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   28. 打印样式
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .back-to-top,
  .banner-carousel,
  .theme-toggle,
  .mobile-menu-btn,
  .search-box {
    display: none !important;
  }

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

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

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

/* --------------------------------------------------------------------------
   29. 高对比度模式支持
   -------------------------------------------------------------------------- */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000;
    --color-text-muted: #333;
  }

  .card,
  .article-card,
  .faq-item,
  .testimonial-card {
    border-width: 2px;
  }

  .btn {
    border: 2px solid currentColor;
  }
}

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

/* 移除鼠标点击时的焦点轮廓 */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
  outline: none;
}
```