*, *::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: #fef9f0;
  color: #2d2a24;
}

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

.section { padding: 80px 0; }

.section:nth-child(even) { background: #fbf3e8; }

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(254, 249, 240, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #e8dccc;
}

.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: #2d2a24;
  letter-spacing: -0.3px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: linear-gradient(135deg, #f4a261, #e76f51);
  color: #fff;
  box-shadow: 0 2px 8px rgba(231, 111, 81, 0.3);
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: #5a534a;
  transition: 0.2s;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #e76f51;
  transition: 0.3s;
}

.main-nav a:hover { color: #e76f51; }
.main-nav a:hover::after { width: 100%; }

.nav-cta {
  padding: 8px 22px;
  border-radius: 30px;
  color: #fff !important;
  font-weight: 600;
  background: linear-gradient(135deg, #f4a261, #e76f51);
  box-shadow: 0 4px 12px rgba(231, 111, 81, 0.25);
  transition: 0.3s;
}

.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(231, 111, 81, 0.35); }
.nav-cta::after { display: none; }

.menu-toggle { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: #2d2a24; }

/* 首页Hero */
.hero {
  min-height: 75vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(160deg, #fef9f0 0%, #fdf0e0 50%, #fbe9d8 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(244, 162, 97, 0.15), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content { max-width: 720px; position: relative; z-index: 2; }

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 30px;
  margin-bottom: 18px;
  background: #fff;
  color: #e76f51;
  border: 1px solid rgba(231, 111, 81, 0.2);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #2d2a24;
}

.hero h1 span { color: #e76f51; }

.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 560px;
  margin-bottom: 34px;
  line-height: 1.6;
  color: #5a534a;
}

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

.hero-image {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(45, 42, 36, 0.08);
  border: 1px solid rgba(232, 220, 204, 0.6);
}

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 30px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: 0.3s;
  font-size: 0.95rem;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #f4a261, #e76f51);
  box-shadow: 0 4px 14px rgba(231, 111, 81, 0.25);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(231, 111, 81, 0.35); }

.btn-outline {
  background: transparent;
  border: 1.5px solid #d4c7b8;
  color: #2d2a24;
}

.btn-outline:hover { border-color: #e76f51; color: #e76f51; background: rgba(231, 111, 81, 0.04); }

/* 标签/标题 */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  margin-bottom: 12px;
  color: #e76f51;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 14px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: #2d2a24;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 44px;
  line-height: 1.7;
  color: #5a534a;
}

/* 卡片网格 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 24px;
}

.category-card {
  border-radius: 16px;
  padding: 32px 28px;
  border: 1px solid #e8dccc;
  background: #fff;
  transition: 0.3s;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #f4a261, #e76f51);
  opacity: 0;
  transition: 0.3s;
}

.category-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(45, 42, 36, 0.08); }
.category-card:hover::before { opacity: 1; }

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: #fef0e4;
  color: #e76f51;
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: #e76f51;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
}

.card-link:hover { gap: 10px; }

/* 特性块 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature-image {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(45, 42, 36, 0.06);
  border: 1px solid #e8dccc;
}

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

.feature-text { }

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

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: #5a534a;
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: #f4a261;
  font-size: 1rem;
}

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

.stat-item {
  padding: 28px 20px;
  border-radius: 16px;
  border: 1px solid #e8dccc;
  background: #fff;
  transition: 0.3s;
}

.stat-item:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(45, 42, 36, 0.06); }

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: #e76f51;
  line-height: 1;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: #5a534a;
}

/* 内容墙 */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 24px;
}

.content-wall-item {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid #e8dccc;
  transition: 0.3s;
  background: #fff;
}

.content-wall-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(45, 42, 36, 0.08); }

.content-wall-item img { width: 100%; height: 210px; object-fit: cover; display: block; }

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

.content-wall-body h4 { font-size: 1.1rem; margin-bottom: 8px; color: #2d2a24; }

.content-wall-body p { font-size: 0.9rem; opacity: 0.7; color: #5a534a; }

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

.faq-item {
  border: 1px solid #e8dccc;
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: 0.2s;
}

.faq-item:hover { border-color: #d4c7b8; }

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #2d2a24;
  font-size: 1rem;
}

.faq-item .faq-question::after {
  content: '↓';
  transition: 0.3s;
  font-size: 1.1rem;
  color: #e76f51;
}

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

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  line-height: 1.6;
  color: #5a534a;
}

.faq-item.open .faq-answer { display: block; }

/* CTA横幅 */
.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border-radius: 16px;
  background: linear-gradient(135deg, #f4a261, #e76f51);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.1), transparent 70%);
  border-radius: 50%;
}

.cta-banner h2 { color: #fff; font-size: 2rem; font-weight: 800; margin-bottom: 12px; position: relative; }

.cta-banner p { color: rgba(255,255,255,0.85); margin-bottom: 24px; position: relative; }

.cta-banner .btn-primary {
  background: #fff;
  color: #e76f51;
  box-shadow: 0 4px 14px rgba(0,0,0,0.1);
}

.cta-banner .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.15); }

/* 页脚 */
.site-footer {
  padding: 60px 0 28px;
  background: #f5ede4;
  border-top: 1px solid #e8dccc;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand { }

.footer-brand p { opacity: 0.7; font-size: 0.9rem; line-height: 1.6; color: #5a534a; margin-top: 12px; }

.footer-col h5 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; color: #2d2a24; }

.footer-col a { display: block; text-decoration: none; color: #5a534a; font-size: 0.9rem; padding: 4px 0; transition: 0.2s; }

.footer-col a:hover { color: #e76f51; padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid #dccfc0;
  margin-top: 44px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.85rem;
  color: #5a534a;
  opacity: 0.7;
}

/* 工具类 */
.text-accent { color: #e76f51; }

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  line-height: 1.7;
  color: #5a534a;
}

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

/* 响应式 */
@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; gap: 36px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; align-items: center; justify-content: center; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: #fef9f0;
    padding: 24px 28px;
    border-bottom: 1px solid #e8dccc;
    gap: 16px;
  }
  .hero h1 { font-size: 2.4rem; }
  .hero { min-height: 60vh; }
}

@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; }
  .section-title { font-size: 1.6rem; }
  .stat-number { font-size: 2rem; }
}