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

body { 
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; 
  overflow-x: hidden;
  background: #FFFBF7;
  color: #2D2A2A;
  line-height: 1.7;
  letter-spacing: 0.2px;
}

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

.section { 
  padding: 100px 0; 
  position: relative;
}

.section:nth-child(even) { 
  background: #FFF3EC;
}

/* 导航 — 固定顶部 */
.site-header { 
  position: fixed; 
  top: 0; 
  left: 0; 
  width: 100%; 
  z-index: 1000; 
  background: rgba(255, 251, 247, 0.93);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 93, 108, 0.14);
  box-shadow: 0 2px 24px rgba(255, 123, 107, 0.07);
}

.header-inner { 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  height: 72px; 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 24px; 
}

.logo { 
  display: flex; 
  align-items: center; 
  gap: 10px; 
  font-weight: 800; 
  font-size: 1.3rem; 
  text-decoration: none; 
  color: #2D2A2A;
  letter-spacing: 0.5px;
}

.logo-icon { 
  width: 40px; 
  height: 40px; 
  border-radius: 50% 50% 50% 50% / 45% 55% 60% 40%;
  background: linear-gradient(135deg, #FF5D6C 0%, #FFB88A 100%);
  display: flex; 
  align-items: center; 
  justify-content: center; 
  font-size: 1.1rem; 
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 93, 108, 0.3);
  transform: rotate(-6deg);
}

.main-nav { 
  display: flex; 
  align-items: center; 
  gap: 30px; 
  list-style: none; 
}

.main-nav a { 
  text-decoration: none; 
  font-size: 0.9rem; 
  font-weight: 600; 
  color: #4A3F3F;
  position: relative;
  transition: all 0.3s;
  letter-spacing: 0.4px;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  border-radius: 4px;
  background: linear-gradient(90deg, #FF5D6C, #FFB88A);
  transition: width 0.35s ease;
}

.main-nav a:hover {
  color: #FF5D6C;
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta { 
  padding: 10px 26px; 
  border-radius: 50px; 
  color: #fff !important; 
  font-weight: 700; 
  background: linear-gradient(135deg, #FF5D6C 0%, #FF7B6B 100%);
  box-shadow: 0 4px 16px rgba(255, 93, 108, 0.3);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}

.nav-cta::after {
  display: none;
}

.nav-cta:hover {
  transform: translateY(-2px) scale(1.03);
  color: #fff !important;
}

.menu-toggle { 
  display: none; 
  background: none; 
  border: none; 
  font-size: 1.5rem; 
  cursor: pointer;
  color: #FF5D6C;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 93, 108, 0.08);
}

/* 首页Hero */
.hero { 
  min-height: 80vh; 
  display: flex; 
  align-items: center; 
  gap: 56px;
  padding: 150px 0 100px;
  position: relative;
  overflow: hidden;
  background: 
    radial-gradient(ellipse at 85% 30%, rgba(255, 184, 138, 0.28) 0%, transparent 55%),
    radial-gradient(ellipse at 10% 85%, rgba(255, 93, 108, 0.12) 0%, transparent 45%),
    #FFFBF7;
}

.hero::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  top: 15%;
  right: -120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 184, 138, 0.25), transparent 65%);
  z-index: 0;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  width: 280px;
  height: 280px;
  bottom: -50px;
  left: -80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 93, 108, 0.1), transparent 65%);
  z-index: 0;
  pointer-events: none;
}

.hero-content { 
  max-width: 640px; 
  position: relative;
  z-index: 2;
  flex: 1.1;
}

.hero-eyebrow { 
  display: inline-block; 
  font-size: 0.78rem; 
  font-weight: 700; 
  padding: 6px 20px; 
  border-radius: 50px; 
  margin-bottom: 22px; 
  background: linear-gradient(135deg, #FF5D6C, #FFB88A);
  color: #fff;
  letter-spacing: 3px;
  text-transform: uppercase;
  box-shadow: 0 4px 16px rgba(255, 93, 108, 0.28);
}

.hero h1 { 
  font-size: 3.8rem; 
  font-weight: 900; 
  line-height: 1.12; 
  margin-bottom: 24px; 
  letter-spacing: -1.5px;
  background: linear-gradient(135deg, #2D2A2A 30%, #FF5D6C 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p { 
  font-size: 1.1rem; 
  opacity: 0.68; 
  max-width: 540px; 
  margin-bottom: 38px; 
  line-height: 1.85;
}

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

.hero-image {
  flex: 0.9;
  max-width: 460px;
  border-radius: 28px;
  position: relative;
  overflow: hidden;
  box-shadow: 
    0 30px 60px rgba(255, 93, 108, 0.14),
    0 10px 30px rgba(0, 0, 0, 0.04);
  border: 5px solid #fff;
  transform: rotate(2deg);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 2;
}

.hero-image:hover {
  transform: rotate(0deg) scale(1.02);
}

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

/* 按钮 */
.btn { 
  display: inline-flex; 
  align-items: center; 
  gap: 8px; 
  padding: 14px 32px; 
  border-radius: 50px; 
  font-weight: 700; 
  cursor: pointer; 
  border: none; 
  text-decoration: none; 
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
  font-size: 0.95rem;
  letter-spacing: 0.3px;
}

.btn-primary { 
  background: linear-gradient(135deg, #FF5D6C 0%, #FF7B6B 100%);
  color: #fff; 
  box-shadow: 0 8px 24px rgba(255, 93, 108, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(255, 93, 108, 0.4);
}

.btn-outline { 
  background: transparent; 
  border: 1.5px solid #FF5D6C;
  color: #FF5D6C;
}

.btn-outline:hover {
  background: rgba(255, 93, 108, 0.08);
  transform: translateY(-3px);
}

/* 标签/标题 */
.section-label { 
  display: inline-block; 
  font-size: 0.75rem; 
  font-weight: 700; 
  letter-spacing: 4px; 
  margin-bottom: 14px; 
  color: #FF5D6C;
  text-transform: uppercase;
  padding-bottom: 6px;
  border-bottom: 2px solid #FFB88A;
}

.section-title { 
  font-size: 2.6rem; 
  font-weight: 800; 
  margin-bottom: 16px; 
  line-height: 1.25;
  letter-spacing: -0.8px;
  color: #2D2A2A;
}

.section-desc { 
  max-width: 620px; 
  opacity: 0.68; 
  margin-bottom: 52px; 
  font-size: 1.05rem;
  line-height: 1.85;
}

/* 卡片网格 */
.cards-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); 
  gap: 28px; 
}

.category-card { 
  border-radius: 24px; 
  padding: 36px 30px; 
  background: #fff;
  border: 1px solid rgba(255, 93, 108, 0.06);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, #FF5D6C, #FFB88A, #FFD93D);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.category-card:hover { 
  transform: translateY(-8px) rotate(0.4deg); 
  box-shadow: 0 20px 48px rgba(255, 93, 108, 0.14); 
  border-color: transparent;
}

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

.card-icon { 
  width: 56px; 
  height: 56px; 
  border-radius: 50% 50% 50% 50% / 60% 40% 60% 40%;
  background: linear-gradient(135deg, rgba(255, 93, 108, 0.14), rgba(255, 184, 138, 0.22));
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin-bottom: 20px; 
  font-size: 1.5rem; 
  color: #FF5D6C;
}

.card-link { 
  font-weight: 700; 
  font-size: 0.85rem; 
  text-decoration: none; 
  color: #FF5D6C;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  transition: gap 0.2s ease;
}

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

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

/* 特性块 */
.feature-block { 
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 72px; 
  align-items: center; 
}

.feature-image { 
  border-radius: 28px; 
  overflow: hidden; 
  position: relative;
  box-shadow: 
    0 24px 48px rgba(255, 93, 108, 0.12),
    0 8px 24px rgba(0, 0, 0, 0.04);
  border: 5px solid #fff;
  transform: rotate(-2deg);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.feature-block:nth-of-type(even) .feature-image {
  transform: rotate(2deg);
}

.feature-image:hover {
  transform: rotate(0deg) scale(1.01);
}

.feature-image img { 
  width: 100%; 
  min-height: 340px;
  object-fit: cover;
  display: block;
}

.feature-text { 
  position: relative;
}

.feature-text .section-title {
  font-size: 2.2rem;
}

.feature-list { 
  list-style: none; 
  margin-top: 28px;
}

.feature-list li { 
  padding: 8px 0; 
  display: flex; 
  align-items: center; 
  gap: 12px; 
  font-size: 1rem;
  color: #4A3F3F;
}

.feature-list li::before { 
  content: '✓'; 
  font-weight: 700; 
  color: #FF5D6C;
  width: 26px;
  height: 26px;
  background: rgba(255, 93, 108, 0.1);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* 数据条 */
.stats-bar { 
  display: grid; 
  grid-template-columns: repeat(4, 1fr); 
  gap: 24px; 
  text-align: center; 
}

.stat-item { 
  padding: 38px 20px; 
  border-radius: 24px; 
  border: none;
  background: #fff;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(255, 93, 108, 0.06);
  transition: transform 0.4s ease;
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(255, 93, 108, 0.12);
}

.stat-item:hover::before {
  transform: scale(1.8);
}

.stat-number { 
  font-size: 2.8rem; 
  font-weight: 900; 
  color: #FF5D6C;
  line-height: 1.2;
  letter-spacing: -1.5px;
  position: relative;
  z-index: 1;
}

.stat-item:nth-child(2) .stat-number { color: #FFB88A; }
.stat-item:nth-child(3) .stat-number { color: #FF7B6B; }
.stat-item:nth-child(4) .stat-number { color: #42B883; }

.stat-label { 
  font-size: 0.85rem; 
  opacity: 0.6; 
  margin-top: 10px; 
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

/* 内容墙 */
.content-wall { 
  display: grid; 
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); 
  gap: 26px; 
}

.content-wall-item { 
  border-radius: 22px; 
  overflow: hidden; 
  background: #fff;
  border: 1px solid rgba(255, 93, 108, 0.05);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
  transition: all 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.content-wall-item:hover { 
  transform: translateY(-8px) scale(1.01); 
  box-shadow: 0 20px 48px rgba(255, 93, 108, 0.14); 
  border-color: transparent;
}

.content-wall-item img { 
  width: 100%; 
  height: 220px; 
  object-fit: cover; 
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.content-wall-body { 
  padding: 26px 26px 30px; 
}

.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #2D2A2A;
}

.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.62;
  line-height: 1.7;
}

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

.faq-item { 
  border: 1.5px solid rgba(255, 93, 108, 0.1); 
  border-radius: 18px; 
  margin-bottom: 12px; 
  overflow: hidden; 
  cursor: pointer; 
  background: #fff;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.02);
}

.faq-item:hover {
  border-color: rgba(255, 93, 108, 0.3);
  box-shadow: 0 6px 20px rgba(255, 93, 108, 0.07);
}

.faq-item.open {
  border-color: #FF5D6C;
  box-shadow: 0 6px 24px rgba(255, 93, 108, 0.12);
}

.faq-item .faq-question { 
  padding: 22px 26px; 
  font-weight: 700; 
  display: flex; 
  justify-content: space-between; 
  align-items: center;
  color: #2D2A2A;
  font-size: 1rem;
  letter-spacing: 0.2px;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.6rem;
  color: #FF5D6C;
  font-weight: 300;
  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);
}

.faq-item .faq-answer { 
  padding: 0 26px 24px; 
  display: none; 
  opacity: 0.7; 
  line-height: 1.85;
  font-size: 0.95rem;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 0.7; transform: translateY(0); }
}

/* CTA横幅 */
.cta-banner { 
  padding: 72px 32px; 
  text-align: center; 
  border-radius: 28px; 
  background: linear-gradient(135deg, #FF5D6C 0%, #FF7B6B 50%, #FFB88A 100%);
  position: relative;
  overflow: hidden;
  color: #fff;
  box-shadow: 0 24px 64px rgba(255, 93, 108, 0.3);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -15%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -8%;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.cta-banner h2 { 
  color: #fff; 
  font-size: 2.4rem;
  font-weight: 800;
  position: relative;
  z-index: 1;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.cta-banner p {
  position: relative;
  z-index: 1;
  opacity: 0.92;
  max-width: 520px;
  margin: 0 auto 32px;
  font-size: 1.1rem;
}

.cta-banner .btn-primary { 
  background: #fff; 
  color: #FF5D6C;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.16);
}

/* 页脚 */
.site-footer { 
  padding: 64px 0 28px; 
  background: #FFF3EC;
  border-top: 2px solid rgba(255, 93, 108, 0.08);
  margin-top: 0;
}

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

.footer-brand { 
  padding-right: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: #6B5E5E;
  font-size: 0.95rem;
  line-height: 1.8;
  margin-top: 12px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: #2D2A2A;
  letter-spacing: 0.5px;
}

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

.footer-col li {
  padding: 5px 0;
}

.footer-col a {
  color: #6B5E5E;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #FF5D6C;
}

.footer-bottom { 
  border-top: 1.5px solid rgba(255, 93, 108, 0.12); 
  margin-top: 48px; 
  padding-top: 22px; 
  text-align: center; 
  font-size: 0.85rem; 
  color: #8B7B7B;
}

/* 工具类 */
.text-accent { 
  color: #FF5D6C; 
  font-weight: 700; 
}

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

.seo-description { 
  max-width: 600px; 
  margin: 0 auto 52px; 
  opacity: 0.7; 
  line-height: 1.85;
  text-align: center;
}

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

/* ⚠️ 响应式 */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding: 120px 0 64px;
    min-height: auto;
    gap: 48px;
  }

  .hero h1 { 
    font-size: 2.6rem; 
  }

  .hero-image {
    max-width: 100%;
    width: 100%;
  }

  .feature-block { 
    grid-template-columns: 1fr; 
    gap: 44px; 
  }

  .feature-image img {
    min-height: 260px;
  }

  .stats-bar { 
    grid-template-columns: repeat(2, 1fr); 
    gap: 16px;
  }

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

  .main-nav { 
    display: none; 
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(255, 251, 247, 0.98);
    padding: 28px 24px;
    gap: 18px;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 93, 108, 0.1);
  }

  .menu-toggle { 
    display: flex; 
  }

  .main-nav.open { 
    display: flex; 
  }

  .section-title { 
    font-size: 2rem; 
  }

  .content-wall-item img { 
    height: 180px; 
  }

  .cta-banner {
    padding: 56px 28px;
  }

  .cta-banner h2 {
    font-size: 1.9rem;
  }

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

  .faq-item .faq-answer {
    padding: 0 20px 20px;
  }
}

@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 h1 { 
    font-size: 2rem; 
  }

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

  .cta-banner { 
    padding: 44px 20px; 
  }

  .cta-banner h2 {
    font-size: 1.6rem;
  }

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

  .section {
    padding: 72px 0;
  }

  .footer-brand {
    padding-right: 0;
  }
}