```css
/* ================================================
   玩美×玩媚 动漫在线观看 — CSS 设计系统
   风格宣言：Candy Paper Pop
   ================================================ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #FF4D6D;
  --primary-deep: #E63A56;
  --primary-soft: #FFDCE2;
  --secondary: #00B4D8;
  --secondary-deep: #0096B7;
  --secondary-soft: #D9F3FC;
  --tertiary: #FFB703;
  --tertiary-deep: #E69E00;
  --tertiary-soft: #FFF3D1;
  --violet: #7C5CE0;
  --violet-soft: #EBE7FF;
  --bg-warm: #FDF8F2;
  --bg-soft: #FAF1EA;
  --card-bg: #FFFFFF;
  --text-dark: #2D2A32;
  --text-muted: #7C7A85;
  --line: #EFE2D6;
  --shadow-sm: 0 4px 16px rgba(45, 42, 50, 0.05);
  --shadow-md: 0 12px 40px rgba(255, 77, 109, 0.10), 0 2px 8px rgba(45, 42, 50, 0.04);
  --shadow-lg: 0 24px 60px rgba(255, 77, 109, 0.16), 0 4px 14px rgba(45, 42, 50, 0.06);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-warm);
  color: var(--text-dark);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-warm);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--tertiary));
  border-radius: 6px;
}

/* ============ 核心布局 ============ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  position: relative;
}

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

/* ============ 导航顶部 ============ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 248, 240, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(239, 226, 214, 0.7);
  box-shadow: 0 1px 30px rgba(255, 77, 109, 0.03);
  transition: box-shadow 0.3s ease;
}

.site-header:hover {
  box-shadow: 0 1px 40px rgba(255, 77, 109, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--text-dark);
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--tertiary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 77, 109, 0.35);
  transform: rotate(-8deg);
  transition: transform 0.3s var(--ease-bounce);
}

.logo:hover .logo-icon {
  transform: rotate(0deg) scale(1.08);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  transition: color 0.25s ease;
  position: relative;
  padding: 4px 0;
  letter-spacing: 0.3px;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--tertiary));
  border-radius: 4px;
  transition: width 0.35s var(--ease-smooth);
}

.main-nav a:not(.nav-cta):hover {
  color: var(--primary);
}

.main-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  padding: 9px 26px;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: #fff !important;
  font-weight: 700;
  font-size: 0.85rem !important;
  box-shadow: 0 4px 18px rgba(255, 77, 109, 0.35);
  transition: all 0.3s var(--ease-bounce);
}

.nav-cta:hover {
  background: var(--primary-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(255, 77, 109, 0.45);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1.5px solid var(--line);
  background: var(--card-bg);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--text-dark);
  transition: all 0.2s ease;
}

.menu-toggle:active {
  transform: scale(0.92);
}

/* ============ Hero 首页 ============ */

.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 120px 0 88px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 18%, rgba(255, 183, 3, 0.14) 0%, transparent 42%),
    radial-gradient(circle at 8% 82%, rgba(0, 180, 216, 0.10) 0%, transparent 40%),
    radial-gradient(circle at 45% 40%, rgba(255, 77, 109, 0.05) 0%, transparent 55%),
    var(--bg-warm);
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 32px dotted rgba(255, 183, 3, 0.12);
  animation: float-spin 40s linear infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 24px solid rgba(0, 180, 216, 0.06);
}

@keyframes float-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero .container {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-content {
  position: relative;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  padding: 8px 22px;
  border-radius: var(--radius-pill);
  background: var(--secondary-soft);
  color: var(--secondary-deep);
  margin-bottom: 22px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  box-shadow: 0 2px 10px rgba(0, 180, 216, 0.08);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 22px;
  letter-spacing: -2px;
  color: var(--text-dark);
}

.hero h1 .highlight {
  position: relative;
  background: linear-gradient(120deg, var(--primary) 0%, var(--tertiary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 .accent {
  position: relative;
  display: inline-block;
}

.hero h1 .accent::after {
  content: '';
  position: absolute;
  left: -2%;
  bottom: 6%;
  width: 104%;
  height: 24%;
  background: linear-gradient(90deg, var(--primary-soft), var(--tertiary-soft));
  z-index: -1;
  border-radius: 6px;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.72;
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.8;
  color: var(--text-muted);
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: 36px;
  overflow: hidden;
  position: relative;
  border: 6px solid #fff;
  box-shadow:
    0 30px 80px rgba(255, 77, 109, 0.20),
    0 12px 32px rgba(45, 42, 50, 0.08);
  transform: rotate(2deg);
  transition: transform 0.5s var(--ease-bounce), box-shadow 0.5s ease;
  max-width: 440px;
  justify-self: end;
  animation: float-card 6s ease-in-out infinite;
}

.hero-image:hover {
  transform: rotate(0deg) scale(1.02);
  box-shadow:
    0 36px 90px rgba(255, 77, 109, 0.25),
    0 16px 40px rgba(45, 42, 50, 0.10);
}

@keyframes float-card {
  0%, 100% { margin-top: 0; }
  50% { margin-top: -12px; }
}

.hero-image::before {
  content: '✦';
  position: absolute;
  top: -14px;
  right: -14px;
  width: 52px;
  height: 52px;
  background: var(--tertiary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  z-index: 3;
  box-shadow: 0 6px 20px rgba(255, 183, 3, 0.45);
  border: 3px solid #fff;
}

.hero-image::after {
  content: '';
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  height: 40px;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.25));
  z-index: 1;
  border-radius: 0 0 28px 28px;
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  aspect-ratio: 4 / 3;
}

/* ============ 按钮 ============ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 34px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.35s var(--ease-bounce);
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 77, 109, 0.38);
}

.btn-primary:hover {
  background: var(--primary-deep);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 34px rgba(255, 77, 109, 0.48);
}

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

.btn-outline:hover {
  background: var(--text-dark);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(45, 42, 50, 0.18);
}

/* ============ 标签 / 标题 ============ */

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 3.5px;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 7px 20px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  position: relative;
}

.section-label::before {
  content: '✧';
  margin-right: 6px;
  font-size: 0.7rem;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.25;
  letter-spacing: -1px;
  color: var(--text-dark);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 5px;
  background: linear-gradient(90deg, var(--primary), var(--tertiary));
  border-radius: 4px;
  margin-top: 12px;
}

.section-desc {
  max-width: 600px;
  opacity: 0.72;
  margin-bottom: 44px;
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.8;
}

/* ============ 卡片网格 ============ */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 26px;
}

.category-card {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: 32px 28px 28px;
  border: 1.5px solid var(--line);
  transition: all 0.4s var(--ease-bounce);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--primary), var(--tertiary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease-smooth);
}

.category-card::after {
  content: '';
  position: absolute;
  top: 18px;
  right: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary-soft);
  transition: background 0.3s ease;
}

.category-card:hover {
  transform: translateY(-8px) rotate(-0.6deg);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

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

.category-card:hover::after {
  background: var(--primary);
}

.category-card:nth-child(1) .card-icon {
  background: var(--primary-soft);
  color: var(--primary);
}
.category-card:nth-child(2) .card-icon {
  background: var(--secondary-soft);
  color: var(--secondary);
}
.category-card:nth-child(3) .card-icon {
  background: var(--tertiary-soft);
  color: var(--tertiary-deep);
}
.category-card:nth-child(4) .card-icon {
  background: var(--violet-soft);
  color: var(--violet);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.45rem;
  transition: transform 0.35s var(--ease-bounce);
}

.category-card:hover .card-icon {
  transform: scale(1.12) rotate(-8deg);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
  line-height: 1.4;
}

.category-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.65;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.card-link::after {
  content: '→';
  transition: transform 0.25s ease;
  font-size: 1rem;
}

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

.card-link:hover::after {
  transform: translateX(5px);
}

/* ============ 特性块 ============ */

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-md);
  transform: rotate(-1.5deg);
  transition: transform 0.5s var(--ease-bounce), box-shadow 0.5s ease;
}

.feature-image:hover {
  transform: rotate(0deg) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.feature-image::before {
  content: '';
  position: absolute;
  top: -16px;
  left: -16px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: var(--tertiary-soft);
  z-index: 1;
  pointer-events: none;
}

.feature-image::after {
  content: '';
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--secondary-soft);
  z-index: 1;
  pointer-events: none;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  position: relative;
  z-index: 0;
}

.feature-text {
  position: relative;
}

.feature-text h2 {
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.28;
  letter-spacing: -0.8px;
  color: var(--text-dark);
}

.feature-text > p {
  opacity: 0.75;
  line-height: 1.85;
  margin-bottom: 20px;
  color: var(--text-muted);
}

.feature-list {
  list-style: none;
  margin-top: 22px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  border-bottom: 1px dashed var(--line);
  color: var(--text-dark);
}

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

.feature-list li::before {
  content: '✓';
  font-weight: 800;
  color: #fff;
  background: var(--secondary);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 180, 216, 0.3);
}

/* ============ 数据条 ============ */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  text-align: center;
}

.stat-item {
  background: var(--card-bg);
  padding: 36px 24px 32px;
  border-radius: var(--radius-xl);
  border: 1.5px solid var(--line);
  position: relative;
  overflow: hidden;
  transition: transform 0.35s var(--ease-bounce), box-shadow 0.35s ease;
}

.stat-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--tertiary));
  border-radius: 4px 4px 0 0;
  transition: transform 0.4s var(--ease-smooth);
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.stat-item:hover::before {
  transform: translateX(-50%) scaleX(1);
}

.stat-number {
  font-size: 2.7rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary) 0%, var(--tertiary) 70%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.15;
  letter-spacing: -1.5px;
  display: inline-block;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 8px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* ============ 内容墙 ============ */

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 26px;
}

.content-wall-item {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1.5px solid var(--line);
  transition: all 0.4s var(--ease-bounce);
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-8px) rotate(0.5deg);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.content-wall-item::after {
  content: '▶';
  position: absolute;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transform: scale(0.8);
  z-index: 3;
  transition: all 0.3s var(--ease-bounce);
}

.content-wall-item:hover::after {
  opacity: 1;
  transform: scale(1);
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease-smooth);
}

.content-wall-item:hover img {
  transform: scale(1.06);
}

.content-wall-body {
  padding: 22px 24px 26px;
}

.content-wall-body h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-dark);
}

.content-wall-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ============ FAQ ============ */

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.35s ease;
}

.faq-item:hover {
  border-color: var(--primary-soft);
  box-shadow: 0 4px 24px rgba(255, 77, 109, 0.08);
}

.faq-item.open {
  border-color: var(--primary);
  box-shadow: 0 8px 32px rgba(255, 77, 109, 0.14);
}

.faq-item .faq-question {
  padding: 22px 28px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.02rem;
  color: var(--text-dark);
  gap: 16px;
  letter-spacing: 0.2px;
}

.faq-item .faq-question::after {
  content: '+';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 50%;
  font-weight: 800;
  font-size: 1.2rem;
  transition: all 0.4s var(--ease-bounce);
  flex-shrink: 0;
  line-height: 1;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
  background: var(--primary);
  color: #fff;
}

.faq-item .faq-answer {
  padding: 0 28px 24px;
  display: none;
  opacity: 0.75;
  color: var(--text-dark);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeSlideIn 0.35s ease;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 0.75;
    transform: translateY(0);
  }
}

/* ============ CTA 横幅 ============ */

.cta-banner {
  padding: 68px 48px;
  text-align: center;
  border-radius: 36px;
  background: linear-gradient(135deg, var(--primary) 0%, #FF8A9A 50%, var(--tertiary) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(255, 77, 109, 0.28);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.4rem;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
  letter-spacing: -0.5px;
}

.cta-banner p {
  position: relative;
  z-index: 2;
  color: #fff;
  opacity: 0.92;
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.10);
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.16);
  background: #fff;
  color: var(--primary-deep);
}

/* ============ 页脚 ============ */

.site-footer {
  padding: 72px 0 28px;
  background: linear-gradient(180deg, var(--bg-warm) 0%, #F3E7DE 100%);
  border-top: 1px solid var(--line);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--tertiary));
  border-radius: 0 0 8px 8px;
}

.site-footer .container {
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand .logo {
  font-size: 1.35rem;
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 320px;
  font-size: 0.92rem;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 18px;
  text-transform: uppercase;
  color: var(--text-dark);
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  text-decoration: none;
  color: var(--text-muted);
  transition: all 0.25s ease;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-col ul a::before {
  content: '›';
  font-weight: 800;
  color: var(--primary);
  font-size: 1.1rem;
  transition: transform 0.25s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(239, 226, 214, 0.8);
  margin-top: 52px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

/* ============ 工具类 ============ */

.text-accent {
  color: var(--primary);
}

.text-center {
  text-align: center;
}

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.72;
  color: var(--text-muted);
  line-height: 1.8;
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

/* ============ 响应式 ============ */

@media (max-width: 992px) {
  .hero h1 {
    font-size: 2.8rem;
  }

  .hero .container {
    gap: 40px;
  }

  .feature-block {
    gap: 40px;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .cta-banner {
    padding: 56px 36px;
  }

  .cta-banner h2 {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 68px 0;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 56px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-image {
    max-width: 100%;
    justify-self: center;
    transform: rotate(0deg);
  }

  .hero h1 {
    font-size: 2.3rem;
  }

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

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

  .feature-image {
    order: -1;
  }

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

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--bg-warm);
    padding: 24px 24px 28px;
    gap: 16px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 48px rgba(45, 42, 50, 0.08);
    align-items: flex-start;
    border-radius: 0 0 24px 24px;
  }

  .main-nav.open a {
    padding: 6px 0;
    font-size: 1rem;
  }

  .main-nav.open .nav-cta {
    margin-top: 8px;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .section-desc {
    font-size: 0.95rem;
  }

  .cta-banner {
    padding: 48px 24px;
    border-radius: 28px;
  }

  .cta-banner h2 {
    font-size: 1.7rem;
  }

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

  .footer-grid {
    gap: 36px;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    justify-content: center;
    width: 100%;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

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

  .stat-number {
    font-size: 2rem;
  }

  .stat-item {
    padding: 28px 20px;
  }

  .faq-item .faq-question {
    padding: 18px 20px;
    font-size: 0.95rem;
  }

  .faq-item .faq-answer {
    padding: 0 20px 20px;
    font-size: 0.9rem;
  }

  .cta-banner {
    padding: 40px 20px;
  }

  .cta-banner h2 {
    font-size: 1.5rem;
  }

  .site-footer {
    padding: 56px 0 24px;
  }
}