```css
/* ==========================================================================
   情趣漫画 vdxgc.cn - 情感趣味故事合集，温馨治愈漫画推荐
   Author: 情趣漫画编辑部
   Version: 2.0.0
   Description: 全站样式表 - 支持暗色模式、毛玻璃、渐变Banner、响应式布局
   ========================================================================== */

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

:root {
  /* 品牌色系 */
  --brand: #c2185b;
  --brand-light: #f8bbd0;
  --brand-dark: #880e4f;
  --brand-glow: rgba(194, 24, 91, 0.35);
  --accent: #7b1fa2;
  --accent-light: #e1bee7;
  --accent-dark: #4a148c;

  /* 背景与卡片 */
  --bg: #fffafc;
  --bg-alt: #fdf2f7;
  --card: #ffffff;
  --card-glass: rgba(255, 255, 255, 0.72);
  --card-glass-hover: rgba(255, 255, 255, 0.88);
  --border: #f0d9e4;
  --border-glass: rgba(255, 255, 255, 0.5);

  /* 文字 */
  --text: #2b2b2b;
  --text-soft: #4a4a4a;
  --muted: #6b6b6b;
  --muted-light: #9e9e9e;

  /* 渐变 */
  --grad-hero: linear-gradient(135deg, #fce4ec 0%, #f3e5f5 50%, #ede7f6 100%);
  --grad-brand: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
  --grad-brand-soft: linear-gradient(135deg, rgba(194, 24, 91, 0.08) 0%, rgba(123, 31, 162, 0.08) 100%);
  --grad-card: linear-gradient(145deg, #ffffff 0%, #fff5f9 100%);
  --grad-footer: linear-gradient(160deg, #880e4f 0%, #4a148c 100%);

  /* 阴影 */
  --shadow-xs: 0 1px 3px rgba(194, 24, 91, 0.06);
  --shadow-sm: 0 2px 8px rgba(194, 24, 91, 0.07);
  --shadow: 0 4px 20px rgba(194, 24, 91, 0.08);
  --shadow-md: 0 8px 30px rgba(194, 24, 91, 0.12);
  --shadow-lg: 0 16px 48px rgba(194, 24, 91, 0.16);
  --shadow-glow: 0 0 30px rgba(194, 24, 91, 0.2);

  /* 圆角 */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* 过渡 */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* 毛玻璃 */
  --glass-blur: blur(16px) saturate(1.4);
  --glass-blur-heavy: blur(24px) saturate(1.6);

  /* 布局 */
  --header-h: 68px;
  --container-max: 1180px;
}

/* 暗色模式变量 */
[data-theme="dark"] {
  --brand: #f06292;
  --brand-light: #4a1f33;
  --brand-dark: #f8bbd0;
  --brand-glow: rgba(240, 98, 146, 0.3);
  --accent: #ce93d8;
  --accent-light: #2a1a33;
  --accent-dark: #e1bee7;

  --bg: #1a1016;
  --bg-alt: #1f141c;
  --card: #241820;
  --card-glass: rgba(36, 24, 32, 0.72);
  --card-glass-hover: rgba(36, 24, 32, 0.9);
  --border: #3a2633;
  --border-glass: rgba(255, 255, 255, 0.08);

  --text: #f0e6ec;
  --text-soft: #d4c4ce;
  --muted: #b8a3b0;
  --muted-light: #8a7583;

  --grad-hero: linear-gradient(135deg, #2d1420 0%, #241a2e 50%, #1f1528 100%);
  --grad-brand: linear-gradient(135deg, #f06292 0%, #ce93d8 100%);
  --grad-brand-soft: linear-gradient(135deg, rgba(240, 98, 146, 0.1) 0%, rgba(206, 147, 216, 0.1) 100%);
  --grad-card: linear-gradient(145deg, #241820 0%, #1f141c 100%);
  --grad-footer: linear-gradient(160deg, #120a0f 0%, #1a1016 100%);

  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(240, 98, 146, 0.15);
}

/* ==========================================================================
   2. 全局基础样式
   ========================================================================== */
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 20%, var(--grad-brand-soft) 0%, transparent 50%),
    radial-gradient(circle at 85% 80%, var(--grad-brand-soft) 0%, transparent 50%);
  opacity: 0.6;
}

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

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

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

ul,
ol {
  list-style: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

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

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

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

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

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

/* ==========================================================================
   3. 头部导航 - 毛玻璃效果
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

.header:hover {
  box-shadow: var(--shadow-md);
}

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

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--brand);
  white-space: nowrap;
  text-decoration: none;
  transition: transform var(--transition-bounce);
}

.logo:hover {
  text-decoration: none;
  transform: scale(1.03);
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--grad-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  box-shadow: var(--shadow-sm), var(--shadow-glow);
  transition: transform var(--transition-bounce), box-shadow var(--transition);
  flex-shrink: 0;
}

.logo:hover .logo-mark {
  transform: rotate(-6deg) scale(1.08);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

/* 主导航 */
.nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  align-items: center;
}

.nav a {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  position: relative;
  transition: background var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast);
}

.nav a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--grad-brand);
  border-radius: var(--radius-full);
  transform: translateX(-50%);
  transition: width var(--transition);
}

.nav a:hover {
  background: var(--brand-light);
  color: var(--brand-dark);
  text-decoration: none;
  transform: translateY(-1px);
}

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

/* 头部工具区 */
.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* 搜索框 - 毛玻璃 */
.search-box {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 4px 6px 4px 16px;
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  transition: border-color var(--transition), box-shadow var(--transition),
    background var(--transition);
}

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

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  width: 130px;
  font-size: 14px;
  font-family: inherit;
  transition: width var(--transition);
}

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

.search-box input:focus {
  width: 170px;
}

.search-box button {
  border: none;
  background: var(--grad-brand);
  color: #fff;
  border-radius: var(--radius-full);
  padding: 6px 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: transform var(--transition-fast), box-shadow var(--transition),
    opacity var(--transition-fast);
}

.search-box button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
  opacity: 0.95;
}

.search-box button:active {
  transform: translateY(0) scale(0.97);
}

/* 图标按钮 */
.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-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;
  color: var(--text);
  transition: transform var(--transition-bounce), background var(--transition),
    border-color var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
}

.icon-btn:hover {
  transform: scale(1.1) rotate(8deg);
  background: var(--brand-light);
  border-color: var(--brand);
  box-shadow: var(--shadow-sm);
}

.icon-btn:active {
  transform: scale(0.95);
}

.menu-btn {
  display: none;
}

/* 移动端导航 */
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 10px 20px 20px;
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur-heavy);
  backdrop-filter: var(--glass-blur-heavy);
  border-bottom: 1px solid var(--border);
  animation: slideDown 0.3s ease;
}

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

.mobile-nav a {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
    padding-left var(--transition-fast);
}

.mobile-nav a:hover {
  background: var(--brand-light);
  color: var(--brand-dark);
  padding-left: 20px;
  text-decoration: none;
}

/* ==========================================================================
   4. 面包屑导航
   ========================================================================== */
.breadcrumb {
  padding: 14px 0;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
}

.breadcrumb a {
  color: var(--muted);
  transition: color var(--transition-fast);
}

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

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

/* ==========================================================================
   5. Hero 渐变Banner区
   ========================================================================== */
.hero {
  background: var(--grad-hero);
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
  transition: background var(--transition);
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--brand-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: floatBlob 12s ease-in-out infinite;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(123, 31, 162, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: floatBlob 15s ease-in-out infinite reverse;
}

@keyframes floatBlob {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.05);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.95);
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 38px;
  line-height: 1.35;
  font-weight: 800;
  margin-bottom: 18px;
  color: var(--brand-dark);
  letter-spacing: -0.5px;
  animation: fadeInUp 0.7s ease both;
}

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

.hero h1 em::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 8px;
  background: var(--brand-light);
  border-radius: var(--radius-full);
  z-index: -1;
  opacity: 0.7;
}

.hero-lead {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 26px;
  max-width: 640px;
  animation: fadeInUp 0.7s 0.1s ease both;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  animation: fadeInUp 0.7s 0.2s ease both;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-bounce), background var(--transition),
    box-shadow var(--transition), color var(--transition);
}

.btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

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

.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--shadow-sm), var(--shadow-glow);
}

.btn-primary:hover {
  text-decoration: none;
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.99);
}

.btn-ghost {
  border-color: var(--brand);
  color: var(--brand);
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}

.btn-ghost:hover {
  background: var(--brand-light);
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

/* 统计数据 */
.hero-stats {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  animation: fadeInUp 0.7s 0.3s ease both;
}

.stat {
  min-width: 80px;
}

.stat b {
  display: block;
  font-size: 28px;
  color: var(--brand);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.stat span {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

/* 徽章 */
.badge-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
  animation: fadeInUp 0.7s 0.4s ease both;
}

.badge {
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  color: var(--brand-dark);
  font-size: 12.5px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-glass);
  transition: transform var(--transition-bounce), background var(--transition),
    box-shadow var(--transition);
}

.badge:hover {
  transform: translateY(-2px) scale(1.05);
  background: var(--brand-light);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   6. 轮播图
   ========================================================================== */
.hero-visual {
  position: relative;
  animation: fadeInUp 0.7s 0.2s ease both;
}

.carousel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--card);
  transition: box-shadow var(--transition), transform var(--transition);
}

.carousel:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-4px);
}

.slide {
  display: none;
  padding: 0;
}

.slide.active {
  display: block;
  animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(1.02);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.carousel-dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.carousel-dots button {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  border: none;
  background: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: width var(--transition), background var(--transition),
    transform var(--transition-fast);
  padding: 0;
}

.carousel-dots button:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: scale(1.2);
}

.carousel-dots button.active {
  background: var(--brand);
  width: 26px;
  box-shadow: 0 0 10px var(--brand-glow);
}

/* ==========================================================================
   7. 通用 Section 样式
   ========================================================================== */
section {
  padding: 60px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 44px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--text);
  letter-spacing: -0.5px;
  position: relative;
  display: inline-block;
}

.section-head h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--grad-brand);
  border-radius: var(--radius-full);
  margin: 12px auto 0;
}

.section-head p {
  color: var(--muted);
  font-size: 16px;
}

.section-head .kicker {
  display: inline-block;
  color: var(--brand);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2.5px;
  margin-bottom: 10px;
  text-transform: uppercase;
  padding: 4px 14px;
  background: var(--grad-brand-soft);
  border-radius: var(--radius-full);
}

/* ==========================================================================
   8. 网格布局
   ========================================================================== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

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

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  background: var(--card-glass-hover);
  border-color: var(--brand-light);
}

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

.card h3 {
  font-size: 19px;
  margin-bottom: 12px;
  color: var(--brand-dark);
  font-weight: 700;
  line-height: 1.4;
}

.card h4 {
  font-size: 16px;
  margin: 18px 0 10px;
  color: var(--text);
  font-weight: 700;
}

.card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.card p + p {
  margin-top: 10px;
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: var(--grad-brand-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: transform var(--transition-bounce), box-shadow var(--transition);
}

.card:hover .card-icon {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   10. 滚动动画 reveal
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  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);
}

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

/* ==========================================================================
   11. 特性列表
   ========================================================================== */
.feature-list {
  list-style: none;
  margin: 14px 0;
}

.feature-list li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--brand);
  font-weight: 800;
  font-size: 15px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-brand-soft);
  border-radius: 50%;
  transition: transform var(--transition-bounce), background var(--transition);
}

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

.feature-list li:hover::before {
  transform: scale(1.15);
  background: var(--brand-light);
}

/* ==========================================================================
   12. 文章卡片
   ========================================================================== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-bounce), box-shadow var(--transition),
    background var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.article-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition);
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  background: var(--card-glass-hover);
  border-color: var(--brand-light);
}

.article-card:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.article-meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

.article-meta time {
  color: var(--brand);
  font-weight: 600;
}

.article-meta span {
  padding: 2px 10px;
  background: var(--grad-brand-soft);
  border-radius: var(--radius-full);
  font-weight: 600;
  color: var(--brand-dark);
  font-size: 12px;
}

.article-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--brand-dark);
  line-height: 1.5;
  font-weight: 700;
  transition: color var(--transition-fast);
}

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

.article-card p {
  color: var(--muted);
  font-size: 14.5px;
  flex: 1;
  line-height: 1.75;
}

.read-more {
  margin-top: 16px;
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--brand);
  transition: gap var(--transition), color var(--transition-fast);
}

.read-more:hover {
  text-decoration: none;
  gap: 8px;
  color: var(--brand-dark);
}

/* ==========================================================================
   13. FAQ 手风琴
   ========================================================================== */
.faq-item {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  margin-bottom: 14px;
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition),
    transform var(--transition-fast);
}

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

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

.faq-q {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  font-family: inherit;
  line-height: 1.5;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.faq-q:hover {
  color: var(--brand);
  background: var(--grad-brand-soft);
}

.faq-q .arrow {
  transition: transform var(--transition), color var(--transition-fast);
  color: var(--brand);
  font-size: 22px;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--grad-brand-soft);
  line-height: 1;
}

.faq-item.open .faq-q {
  color: var(--brand);
}

.faq-item.open .faq-q .arrow {
  transform: rotate(45deg);
  background: var(--brand);
  color: #fff;
}

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

.faq-item.open .faq-a {
  max-height: 800px;
  padding-bottom: 22px;
}

.faq-a p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
}

/* ==========================================================================
   14. HowTo 步骤
   ========================================================================== */
.howto-steps {
  counter-reset: step;
  margin-top: 8px;
}

.howto-step {
  position: relative;
  padding: 0 0 30px 64px;
  border-left: 2px solid var(--border);
  margin-left: 22px;
  transition: border-color var(--transition);
}

.howto-step:hover {
  border-left-color: var(--brand);
}

.howto-step:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.howto-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: -22px;
  top: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  box-shadow: var(--shadow-sm), var(--shadow-glow);
  transition: transform var(--transition-bounce), box-shadow var(--transition);
}

.howto-step:hover::before {
  transform: scale(1.12) rotate(-8deg);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.howto-step h4 {
  margin: 0 0 8px;
  color: var(--brand-dark);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.howto-step p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ==========================================================================
   15. 案例卡片
   ========================================================================== */
.case-card {
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  transition: transform var(--transition-bounce), box-shadow var(--transition),
    background var(--transition);
  position: relative;
  overflow: hidden;
}

.case-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-md);
  background: var(--card-glass-hover);
}

.case-card .tag {
  display: inline-block;
  background: var(--grad-brand-soft);
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  border: 1px solid var(--border-glass);
}

.case-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--brand-dark);
  font-weight: 700;
}

.case-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ==========================================================================
   16. 引用块
   ========================================================================== */
.quote {
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 26px 30px;
  box-shadow: var(--shadow);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

.quote::before {
  content: "\201C";
  position: absolute;
  top: 8px;
  right: 20px;
  font-size: 64px;
  color: var(--brand-light);
  font-family: Georgia, serif;
  line-height: 1;
  opacity: 0.6;
  pointer-events: none;
}

.quote:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--accent);
}

.quote p {
  color: var(--muted);
  font-style: italic;
  margin-bottom: 14px;
  font-size: 15px;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.quote .who {
  font-weight: 700;
  color: var(--brand-dark);
  font-size: 14px;
  font-style: normal;
}

/* ==========================================================================
   17. 新闻列表
   ========================================================================== */
.news-list {
  list-style: none;
}

.news-list li {
  display: flex;
  gap: 16px;
  padding: 16px 4px;
  border-bottom: 1px dashed var(--border);
  align-items: flex-start;
  transition: background var(--transition-fast), padding-left var(--transition-fast);
  border-radius: var(--radius-sm);
}

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

.news-list li:hover {
  background: var(--grad-brand-soft);
  padding-left: 12px;
}

.news-list .date {
  color: var(--brand);
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  min-width: 96px;
  padding-top: 1px;
}

.news-list .title {
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  transition: color var(--transition-fast);
}

.news-list li:hover .title {
  color: var(--brand);
}

/* ==========================================================================
   18. 联系信息
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-info {
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
}

.contact-info:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.contact-info h3 {
  font-size: 20px;
  color: var(--brand-dark);
  margin-bottom: 18px;
  font-weight: 700;
}

.contact-info dl {
  margin: 0;
}

.contact-info dt {
  font-weight: 700;
  color: var(--brand-dark);
  margin-top: 18px;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.contact-info dt::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--grad-brand);
  border-radius: 50%;
  flex-shrink: 0;
}

.contact-info dd {
  color: var(--muted);
  font-size: 15px;
  margin: 6px 0 0 12px;
  line-height: 1.7;
}

.map-box {
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
}

.map-box:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.map-box h3 {
  font-size: 20px;
  color: var(--brand-dark);
  margin-bottom: 18px;
  font-weight: 700;
}

.map-box h4 {
  font-size: 16px;
  color: var(--text);
  margin: 20px 0 10px;
  font-weight: 700;
}

.map-box address {
  font-style: normal;
  color: var(--muted);
  font-size: 15px;
  line-height: 2;
  padding: 16px 20px;
  background: var(--grad-brand-soft);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--brand);
}

/* ==========================================================================
   19. 目录 TOC
   ========================================================================== */
.toc {
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition);
}

.toc:hover {
  box-shadow: var(--shadow-md);
}

.toc h3 {
  font-size: 17px;
  margin-bottom: 16px;
  color: var(--brand-dark);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc h3::before {
  content: "";
  width: 4px;
  height: 18px;
  background: var(--grad-brand);
  border-radius: var(--radius-full);
}

.toc ol {
  padding-left: 0;
  counter-reset: toc;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 24px;
}

.toc li {
  margin-bottom: 4px;
  font-size: 14.5px;
  counter-increment: toc;
  position: relative;
  padding-left: 26px;
  transition: transform var(--transition-fast);
}

.toc li::before {
  content: counter(toc) ".";
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: 700;
  font-size: 13px;
}

.toc li:hover {
  transform: translateX(4px);
}

.toc a {
  color: var(--muted);
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   20. 表格
   ========================================================================== */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--card-glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 14.5px;
  border: 1px solid var(--border-glass);
}

th,
td {
  padding: 15px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--grad-brand-soft);
  color: var(--brand-dark);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.3px;
}

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

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

tbody tr:hover {
  background: var(--grad-brand-soft);
}

td {
  color: var(--muted);
  line-height: 1.6;
}

/* ==========================================================================
   21. 提示框
   ========================================================================== */
.notice {
  background: var(--grad-brand-soft);
  border: 1px solid var(--border-glass);
  border-left: 4px solid var(--brand);
  border-radius: var(--radius);
  padding: 22px 26px;
  font-size: 14.5px;
  color: var(--text-soft);
  margin-top: 24px;
  line-height: 1.8;
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  transition: transform var(--transition), box-shadow var(--transition);
}

.notice:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.notice strong {
  color: var(--brand-dark);
}

/* ==========================================================================
   22. 页脚
   ========================================================================== */
footer {
  background: var(--grad-footer);
  color: #f3d9e6;
  padding: 56px 0 28px;
  margin-top: 20px;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-grid h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 700;
  position: relative;
  padding-bottom: 10px;
}

.footer-grid h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--brand-light);
  border-radius: var(--radius-full);
}

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

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

.footer-grid a {
  color: #e8bcd0;
  font-size: 14px;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: inline-block;
}

.footer-grid a:hover {
  color: #fff;
  text-decoration: none;
  padding-left: 6px;
}

.footer-grid p {
  font-size: 14px;
  color: #d9a8bf;
  line-height: 1.9;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #d9a8bf;
}

.footer-bottom a {
  color: #f3d9e6;
  transition: color var(--transition-fast);
}

.footer-bottom a:hover {
  color: #fff;
}

/* ==========================================================================
   23. 返回顶部按钮
   ========================================================================== */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  border: none;
  font-size: 22px;
  cursor: pointer;
  box-shadow: var(--shadow-md), var(--shadow-glow);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: transform var(--transition-bounce), box-shadow var(--transition),
    opacity var(--transition);
}

.back-top.show {
  display: flex;
  animation: popIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.back-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

/* ==========================================================================
   24. 响应式布局
   ========================================================================== */

/* 大屏优化 */
@media (min-width: 1400px) {
  :root {
    --container-max: 1280px;
  }
  .hero h1 {
    font-size: 42px;
  }
}

/* 平板横屏 / 小笔记本 */
@media (max-width: 1100px) {
  .hero h1 {
    font-size: 34px;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
}

/* 平板竖屏 */
@media (max-width: 960px) {
  :root {
    --header-h: 62px;
  }

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

  .hero-grid {
    gap: 36px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero {
    padding: 44px 0 40px;
  }

  .hero-lead {
    font-size: 16px;
  }

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

  .menu-btn {
    display: flex;
  }

  .section-head h2 {
    font-size: 24px;
  }

  section {
    padding: 48px 0;
  }

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

  .toc ol {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 22px;
  }

  .stat b {
    font-size: 24px;
  }

  .hero::before,
  .hero::after {
    opacity: 0.5;
  }
}

/* 手机 */
@media (max-width: 640px) {
  :root {
    --header-h: 58px;
    --radius: 12px;
    --radius-lg: 16px;
  }

  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 36px 0 32px;
  }

  .hero h1 {
    font-size: 24px;
    line-height: 1.4;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-actions {
    gap: 10px;
  }

  .btn {
    padding: 11px 22px;
    font-size: 14px;
    flex: 1;
    justify-content: center;
    min-width: 140px;
  }

  .hero-stats {
    gap: 18px;
    justify-content: space-between;
  }

  .stat {
    min-width: 60px;
  }

  .stat b {
    font-size: 22px;
  }

  .stat span {
    font-size: 12px;
  }

  .card {
    padding: 22px;
  }

  .article-card {
    padding: 20px;
  }

  .article-card h3 {
    font-size: 16.5px;
  }

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

  .section-head h2 {
    font-size: 21px;
  }

  .section-head p {
    font-size: 14.5px;
  }

  section {
    padding: 40px 0;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
    font-size: 20px;
  }

  .howto-step {
    padding-left: 56px;
    margin-left: 18px;
  }

  .howto-step::before {
    width: 38px;
    height: 38px;
    left: -20px;
    font-size: 15px;
  }

  .faq-q {
    padding: 16px 18px;
    font-size: 15px;
  }

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

  .contact-info,
  .map-box {
    padding: 24px;
  }

  .news-list li {
    flex-direction: column;
    gap: 6px;
  }

  .news-list .date {
    min-width: auto;
  }

  th,
  td {
    padding: 12px 14px;
    font-size: 13.5px;
  }

  .toc {
    padding: 22px;
  }

  .quote {
    padding: 22px 24px;
  }

  .quote::before {
    font-size: 48px;
    top: 4px;
    right: 14px;
  }
}

/* 超小屏 */
@media (max-width: 380px) {
  .hero h1 {
    font-size: 21px;
  }

  .logo {
    font-size: 17px;
  }

  .logo-mark {
    width: 34px;
    height: 34px;
    font-size: 18px;
  }

  .btn {
    min-width: 120px;
    padding: 10px 18px;
  }

  .stat b {
    font-size: 20px;
  }
}

/* ==========================================================================
   25. 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;
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  :root {
    --border: #999;
    --muted: #444;
  }

  [data-theme="dark"] {
    --border: #666;
    --muted: #ccc;
  }
}

/* 打印样式 */
@media print {
  .header,
  .back-top,
  .hero-actions,
  .carousel-dots,
  .mobile-nav {
    display: none !important;
  }

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

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