*, *::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: #2c2a28;
}

/* ===== 核心布局 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section:nth-child(even) { background: #fbf4ea; }

/* ===== 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: 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: #2c2a28;
  letter-spacing: -0.5px;
}
.logo-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, #f7b05e, #e8893a);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff; box-shadow: 0 4px 12px rgba(247, 176, 94, 0.35);
}
.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: #2c2a28; letter-spacing: 0.3px; padding: 6px 0;
  border-bottom: 2px solid transparent; transition: 0.25s;
}
.main-nav a:hover { border-bottom-color: #e8893a; color: #c9742e; }
.nav-cta {
  padding: 10px 24px; border-radius: 40px;
  background: linear-gradient(135deg, #f7b05e, #e8893a);
  color: #fff !important; font-weight: 700; font-size: 0.85rem;
  box-shadow: 0 4px 14px rgba(232, 137, 58, 0.3);
  border-bottom: none !important;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232, 137, 58, 0.4); }
.menu-toggle { display: none; }

/* ===== Hero ===== */
.hero {
  min-height: 75vh; display: flex; align-items: center;
  background: linear-gradient(120deg, #fef9f0 0%, #fce9d6 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -30%; right: -10%;
  width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, rgba(247, 176, 94, 0.15), transparent 70%);
  pointer-events: none;
}
.hero-content { max-width: 720px; position: relative; z-index: 1; }
.hero-eyebrow {
  display: inline-block; font-size: 0.8rem; font-weight: 700;
  padding: 6px 18px; border-radius: 40px; margin-bottom: 18px;
  background: #fff; color: #e8893a; letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(232, 137, 58, 0.12);
}
.hero h1 {
  font-size: 3.2rem; line-height: 1.15; margin-bottom: 18px;
  font-weight: 800; letter-spacing: -1px; color: #1f1e1b;
}
.hero p {
  font-size: 1.1rem; opacity: 0.65; max-width: 540px; margin-bottom: 34px;
  color: #4a4642; line-height: 1.6;
}
.hero-buttons { display: flex; gap: 16px; }
.hero-image {
  border-radius: 20px; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.06);
  position: relative;
}
.hero-image img { width: 100%; height: auto; display: block; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 40px; font-weight: 700;
  cursor: pointer; border: none; text-decoration: none; transition: 0.25s;
  font-size: 0.9rem; letter-spacing: 0.3px;
}
.btn-primary {
  background: linear-gradient(135deg, #f7b05e, #e8893a);
  color: #fff; box-shadow: 0 6px 18px rgba(232, 137, 58, 0.3);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(232, 137, 58, 0.4); }
.btn-outline {
  background: transparent; border: 2px solid #e8893a;
  color: #e8893a;
}
.btn-outline:hover { background: #e8893a; color: #fff; }

/* ===== 标签/标题 ===== */
.section-label {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  letter-spacing: 3px; margin-bottom: 12px; color: #e8893a;
  text-transform: uppercase;
}
.section-title {
  font-size: 2.4rem; margin-bottom: 14px; font-weight: 800;
  letter-spacing: -0.5px; color: #1f1e1b;
}
.section-desc { max-width: 600px; opacity: 0.65; margin-bottom: 44px; color: #4a4642; }

/* ===== 卡片网格 ===== */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px; }
.category-card {
  border-radius: 20px; padding: 32px 28px;
  background: #fff; border: 1px solid #f0e6d8;
  transition: 0.3s; position: relative; overflow: hidden;
}
.category-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, #f7b05e, #e8893a);
  transform: scaleX(0); transform-origin: left; transition: 0.4s;
}
.category-card:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(0,0,0,0.06); }
.category-card:hover::after { transform: scaleX(1); }
.card-icon {
  width: 52px; height: 52px; border-radius: 16px;
  background: linear-gradient(135deg, #fef0e0, #fce4cc);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; font-size: 1.4rem; color: #e8893a;
}
.card-link {
  font-weight: 700; font-size: 0.85rem; text-decoration: none;
  color: #e8893a; display: inline-flex; align-items: center; gap: 6px;
}
.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: 20px; overflow: hidden;
  box-shadow: 0 16px 40px rgba(0,0,0,0.05);
}
.feature-image img { width: 100%; height: auto; display: block; }
.feature-text { }
.feature-list { list-style: none; margin-top: 8px; }
.feature-list li {
  padding: 8px 0; display: flex; align-items: center; gap: 10px;
  font-weight: 500; color: #3a3733;
}
.feature-list li::before {
  content: '✦'; font-weight: 700; color: #e8893a; font-size: 1rem;
}

/* ===== 数据条 ===== */
.stats-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; text-align: center; }
.stat-item {
  padding: 28px 16px; border-radius: 20px;
  background: #fff; border: 1px solid #f0e6d8; transition: 0.3s;
}
.stat-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.04); }
.stat-number {
  font-size: 2.6rem; font-weight: 800; color: #1f1e1b;
  background: linear-gradient(135deg, #f7b05e, #e8893a);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.9rem; opacity: 0.6; margin-top: 6px; color: #4a4642; }

/* ===== 内容墙 ===== */
.content-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }
.content-wall-item {
  border-radius: 20px; overflow: hidden; background: #fff;
  border: 1px solid #f0e6d8; transition: 0.3s;
}
.content-wall-item:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(0,0,0,0.06); }
.content-wall-item img { width: 100%; height: 220px; object-fit: cover; }
.content-wall-body { padding: 24px; }
.content-wall-body h3 { font-size: 1.1rem; margin-bottom: 8px; color: #1f1e1b; }
.content-wall-body p { font-size: 0.9rem; opacity: 0.65; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid #f0e6d8; border-radius: 16px; margin-bottom: 10px;
  overflow: hidden; cursor: pointer; background: #fff;
  transition: 0.3s;
}
.faq-item:hover { border-color: #e8dccc; }
.faq-item .faq-question {
  padding: 18px 24px; font-weight: 700; display: flex;
  justify-content: space-between; align-items: center; color: #1f1e1b;
  font-size: 1rem;
}
.faq-item .faq-question::after {
  content: '+'; font-size: 1.4rem; font-weight: 300; color: #e8893a;
  transition: 0.3s;
}
.faq-item.open .faq-question::after { content: '−'; transform: rotate(180deg); }
.faq-item .faq-answer {
  padding: 0 24px 20px; display: none; opacity: 0.7;
  line-height: 1.7; color: #4a4642;
}
.faq-item.open .faq-answer { display: block; }

/* ===== CTA横幅 ===== */
.cta-banner {
  padding: 64px 40px; text-align: center; border-radius: 24px;
  background: linear-gradient(135deg, #f7b05e, #e8893a);
  color: #fff; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 400px; height: 400px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
  pointer-events: none;
}
.cta-banner h2 { color: #fff; font-size: 2.2rem; margin-bottom: 12px; }
.cta-banner p { color: rgba(255,255,255,0.85); margin-bottom: 24px; }
.cta-banner .btn-primary {
  background: #fff; color: #e8893a; box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

/* ===== 页脚 ===== */
.site-footer {
  padding: 60px 0 32px;
  background: #f5ede2;
  border-top: 1px solid #e8dccc;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.footer-brand p { opacity: 0.65; font-size: 0.9rem; margin-top: 12px; color: #4a4642; }
.footer-col h4 { font-weight: 700; margin-bottom: 16px; color: #1f1e1b; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { text-decoration: none; color: #4a4642; font-size: 0.9rem; opacity: 0.7; transition: 0.2s; }
.footer-col a:hover { opacity: 1; color: #e8893a; }
.footer-bottom {
  border-top: 1px solid #e0d4c4; margin-top: 44px;
  padding-top: 22px; text-align: center; font-size: 0.85rem;
  color: #7a726a;
}

/* ===== 工具类 ===== */
.text-accent { color: #e8893a; }
.text-center { text-align: center; }
.seo-description { max-width: 600px; margin: 0 auto 48px; opacity: 0.65; color: #4a4642; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .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: 72px; left: 0; width: 100%; background: #fef9f0;
    padding: 24px; border-bottom: 1px solid #e8dccc;
    gap: 16px;
  }
  .hero h1 { font-size: 2.4rem; }
  .section-title { font-size: 1.8rem; }
  .cta-banner { padding: 44px 24px; }
}
@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; }
  .hero { min-height: 60vh; }
  .section { padding: 56px 0; }
}