/* =============================================
   玩美×玩媚动漫 · 次元漫游设计系统
   风格：泡泡糖次元 · 奶油粉紫撞色
   域名：wanmeiwanmei.he.cn
   ============================================= */

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

:root {
  --bg: #FFF9F2;
  --bg-alt: #FFF0F3;
  --primary: #FF4D8D;
  --primary-dark: #E6306E;
  --secondary: #6C5CE7;
  --accent: #FFC531;
  --mint: #00CEB8;
  --text: #2D2B33;
  --text-light: #7A7480;
  --white: #FFFFFF;
  --shadow-pink: 0 8px 28px rgba(255, 77, 141, 0.14);
  --shadow-purple: 0 8px 32px rgba(108, 92, 231, 0.13);
  --shadow-mint: 0 8px 32px rgba(0, 206, 184, 0.15);
  --shadow-yellow: 0 8px 24px rgba(255, 197, 49, 0.2);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-full: 999px;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255, 77, 141, 0.05) 0%, transparent 32%),
    radial-gradient(circle at 88% 75%, rgba(108, 92, 231, 0.05) 0%, transparent 36%),
    radial-gradient(circle at 60% 10%, rgba(0, 206, 184, 0.04) 0%, transparent 28%);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

*:focus {
  outline: 3px solid rgba(255, 77, 141, 0.3);
  outline-offset: 2px;
}

/* ---------- 核心布局 ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
  position: relative;
}

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

/* ---------- 导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 249, 242, 0.88);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid rgba(255, 77, 141, 0.12);
  box-shadow: 0 2px 20px rgba(255, 77, 141, 0.06);
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--mint), var(--accent), var(--primary));
  background-size: 200% 100%;
  animation: headerFlow 4s linear infinite;
}

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

.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);
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: var(--shadow-pink);
  transform: rotate(-8deg);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo:hover .logo-icon {
  transform: rotate(8deg) scale(1.08);
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  transition: color 0.25s;
  position: relative;
  padding: 4px 0;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.3s cubic-bezier(0.65, 0, 0.35, 1);
}

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

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

.nav-cta {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  color: #fff !important;
  font-weight: 700;
  font-size: 0.88rem !important;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: var(--shadow-pink);
  transition: transform 0.25s, box-shadow 0.25s;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-purple);
}

.menu-toggle {
  display: none;
  background: none;
  border: 2px solid rgba(255, 77, 141, 0.35);
  border-radius: var(--radius-sm);
  width: 44px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: border-color 0.25s;
}

.menu-toggle:hover {
  border-color: var(--primary);
}

.menu-toggle::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 6px 0 var(--primary), 0 -6px 0 var(--primary);
  transition: transform 0.3s;
}

/* ---------- 首页Hero ---------- */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '✦';
  position: absolute;
  top: 18%;
  left: 6%;
  font-size: 2.4rem;
  color: var(--mint);
  opacity: 0.4;
  animation: floatSparkle 6s ease-in-out infinite;
}

.hero::after {
  content: '✦';
  position: absolute;
  bottom: 20%;
  right: 8%;
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.3;
  animation: floatSparkle 7s ease-in-out infinite 1s;
}

@keyframes floatSparkle {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-16px) rotate(10deg); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--accent), #FF8A5C);
  color: #fff;
  box-shadow: var(--shadow-yellow);
  letter-spacing: 0.04em;
}

.hero-eyebrow::before {
  content: '꒷꒦';
  font-size: 0.8rem;
  letter-spacing: 0;
}

.hero h1 {
  font-size: 3.4rem;
  line-height: 1.12;
  font-weight: 900;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #FF4D8D 20%, #6C5CE7 50%, #00CEB8 80%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  position: relative;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 520px;
  margin-bottom: 34px;
  color: var(--text);
  line-height: 1.75;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-purple);
  border: 4px solid #fff;
  transform: rotate(2deg) perspective(800px) rotateY(-3deg);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 1;
}

.hero:hover .hero-image {
  transform: rotate(0deg) perspective(800px) rotateY(0deg);
}

.hero-image::before {
  content: '';
  position: absolute;
  top: -14px;
  right: -14px;
  width: 80px;
  height: 80px;
  background: var(--accent);
  border-radius: 20px;
  z-index: 0;
  transform: rotate(20deg);
}

.hero-image::after {
  content: '♡';
  position: absolute;
  bottom: 20px;
  left: 20px;
  font-size: 1.6rem;
  color: #fff;
  z-index: 2;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
  background: rgba(255, 77, 141, 0.55);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.94rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.btn:hover::after {
  transform: translateX(100%);
}

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

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-purple);
}

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

.btn-outline:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(255, 77, 141, 0.12);
}

/* ---------- 标签/标题 ---------- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 14px;
  text-transform: lowercase;
  color: var(--primary);
  padding: 5px 16px;
  background: rgba(255, 77, 141, 0.08);
  border-radius: var(--radius-full);
}

.section-label::before {
  content: '';
  width: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  position: relative;
}

.section-desc {
  max-width: 620px;
  opacity: 0.7;
  margin-bottom: 44px;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.8;
}

/* ---------- 卡片网格 ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.category-card {
  border-radius: var(--radius-md);
  padding: 30px 28px;
  border: 1.5px solid rgba(255, 77, 141, 0.08);
  background: var(--white);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--mint), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.category-card::after {
  content: '✦';
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 1.1rem;
  color: var(--accent);
  opacity: 0;
  transform: rotate(-30deg) scale(0.6);
  transition: all 0.35s;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-pink);
  border-color: rgba(255, 77, 141, 0.18);
}

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

.category-card:hover::after {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(255, 77, 141, 0.12), rgba(108, 92, 231, 0.12));
  position: relative;
}

.category-card:nth-child(2) .card-icon {
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.12), rgba(0, 206, 184, 0.12));
}

.category-card:nth-child(3) .card-icon {
  background: linear-gradient(135deg, rgba(255, 197, 49, 0.18), rgba(255, 77, 141, 0.12));
}

.category-card:nth-child(4) .card-icon {
  background: linear-gradient(135deg, rgba(0, 206, 184, 0.14), rgba(255, 197, 49, 0.14));
}

.card-link {
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s;
}

.card-link:hover {
  gap: 12px;
}

.card-link::after {
  content: '→';
  transition: transform 0.25s;
}

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

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-purple);
  transform: rotate(-2deg);
  border: 3px solid #fff;
}

.feature-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 77, 141, 0.08), rgba(108, 92, 231, 0.08));
  pointer-events: none;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-text {
  position: relative;
}

.feature-text::before {
  content: '“';
  position: absolute;
  top: -34px;
  left: -12px;
  font-size: 5rem;
  font-weight: 900;
  color: var(--primary);
  opacity: 0.14;
  line-height: 1;
  font-family: Georgia, serif;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px dashed rgba(255, 77, 141, 0.1);
}

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

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: #fff;
  background: linear-gradient(135deg, var(--mint), #00A89A);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(0, 206, 184, 0.25);
}

/* ---------- 数据条 ---------- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.stat-item {
  padding: 34px 24px;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(255, 77, 141, 0.08);
  background: var(--white);
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
  overflow: hidden;
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity 0.3s;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-pink);
}

.stat-item:hover::after {
  opacity: 1;
}

.stat-item:nth-child(1) .stat-number {
  color: var(--primary);
}

.stat-item:nth-child(2) .stat-number {
  color: var(--secondary);
}

.stat-item:nth-child(3) .stat-number {
  color: var(--mint);
}

.stat-item:nth-child(4) .stat-number {
  color: #FF8A5C;
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-label {
  font-size: 0.88rem;
  opacity: 0.6;
  margin-top: 10px;
  font-weight: 500;
}

/* ---------- 内容墙 ---------- */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1.5px solid rgba(255, 77, 141, 0.08);
  background: var(--white);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-purple);
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1);
}

.content-wall-item:hover img {
  transform: scale(1.04);
}

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

.content-wall-body::after {
  content: '✦';
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 0.9rem;
  color: var(--accent);
}

.content-wall-body h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.content-wall-body p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border: 1.5px solid rgba(255, 77, 141, 0.08);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--white);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item:hover {
  border-color: rgba(255, 77, 141, 0.2);
}

.faq-item.open {
  border-color: rgba(255, 77, 141, 0.24);
  box-shadow: var(--shadow-pink);
}

.faq-question {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  transition: color 0.25s;
}

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

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--secondary);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  line-height: 1;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.7;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text);
}

.faq-item.open .faq-answer {
  display: block;
  opacity: 0.75;
  animation: faqFade 0.3s ease;
}

@keyframes faqFade {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 0.75; transform: translateY(0); }
}

/* ---------- CTA横幅 ---------- */
.cta-banner {
  padding: 68px 48px;
  text-align: center;
  border-radius: var(--radius-lg);
  color: #fff;
  background: linear-gradient(135deg, #FF4D8D 0%, #FF8A5C 45%, #FFC531 100%);
  box-shadow: var(--shadow-pink);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.cta-banner::after {
  content: '✦ ✦ ✦';
  position: absolute;
  bottom: 20px;
  left: 32px;
  font-size: 1.1rem;
  letter-spacing: 8px;
  color: rgba(255, 255, 255, 0.35);
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
  font-size: 1.02rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.35);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255, 255, 255, 0.45);
}

/* ---------- 页脚 ---------- */
.site-footer {
  padding: 64px 0 28px;
  background: linear-gradient(180deg, #FFF0F3, #FFE8EC);
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--primary), var(--secondary), var(--mint), var(--accent)) 1;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--mint), var(--accent));
  background-size: 200% 100%;
  animation: headerFlow 5s linear infinite;
}

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

.footer-brand {
  position: relative;
}

.footer-brand .logo-icon {
  margin-bottom: 14px;
}

.footer-brand p {
  max-width: 260px;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 18px;
}

.footer-col {
  position: relative;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: 0.02em;
}

.footer-col a {
  display: block;
  color: var(--text-light);
  text-decoration: none;
  padding: 5px 0;
  font-size: 0.9rem;
  transition: color 0.25s, padding-left 0.25s;
}

.footer-col a:hover {
  color: var(--primary);
  padding-left: 6px;
}

.footer-bottom {
  border-top: 1px solid rgba(45, 43, 51, 0.08);
  margin-top: 48px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
}

.footer-bottom strong {
  color: var(--primary);
  font-weight: 700;
}

/* ---------- 工具类 ---------- */
.text-accent {
  color: transparent;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

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

.seo-description {
  max-width: 650px;
  margin: 0 auto 52px;
  opacity: 0.7;
  line-height: 1.9;
  font-size: 1rem;
}

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

/* ---------- 装饰块 ---------- */
.section::after {
  content: '✦';
  position: absolute;
  right: 8%;
  top: 40px;
  font-size: 1.2rem;
  color: rgba(255, 77, 141, 0.15);
  pointer-events: none;
  animation: floatSparkle 8s ease-in-out infinite;
}

.section:nth-child(odd)::after {
  right: auto;
  left: 5%;
  color: rgba(108, 92, 231, 0.12);
  animation-delay: 1.5s;
}

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
  .hero h1 { font-size: 2.6rem; }
  .hero-content { max-width: 100%; }
  .hero-image { margin-top: 40px; }
  .hero { flex-direction: column; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .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: rgba(255, 249, 242, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 3px solid rgba(255, 77, 141, 0.2);
    box-shadow: 0 16px 40px rgba(255, 77, 141, 0.1);
    animation: navDrop 0.3s ease;
  }

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

  .main-nav.open .nav-cta {
    text-align: center;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 60px;
  }

  .hero h1 { font-size: 2.2rem; }
  .section-title { font-size: 2rem; }
  .cta-banner { padding: 48px 28px; }
  .cta-banner h2 { font-size: 1.8rem; }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .hero-buttons .btn { justify-content: center; }
  .hero h1 { font-size: 1.9rem; }
  .section-title { font-size: 1.6rem; }
  .section-label { letter-spacing: 2px; }
  .stat-number { font-size: 2.1rem; }
  .cta-banner { padding: 40px 22px; border-radius: var(--radius-md); }
  .cta-banner::after { display: none; }
}