/* 青舰探索官网样式 */
/* 品牌色：深蓝 #1a2d5a，亮蓝 #00b4d8，橙色 #f4a261，浅灰 #f7f9fc */

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

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1a1a2e;
  background: #ffffff;
  line-height: 1.7;
}

/* ---- 导航 ---- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
  padding: 0 5%;
}
.navbar-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-size: 20px; font-weight: 700; color: #1a2d5a;
  text-decoration: none;
  display: flex; align-items: center; gap: 10px;
}
.nav-logo img {
  height: 22px; width: 22px; max-width: 22px; max-height: 22px;
  object-fit: contain; flex-shrink: 0;
  border-radius: 4px;
  align-self: center;
}
.nav-logo .logo-text { line-height: 1.2; }
.nav-logo .logo-text sup {
  font-size: 10px; font-weight: 400; color: #1a2d5a;
  vertical-align: super; margin-left: 1px;
}
.nav-logo .logo-text span { color: #00b4d8; }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  text-decoration: none; color: #333; font-size: 15px;
  font-weight: 500; transition: color 0.2s;
}
.nav-links a:hover { color: #00b4d8; }

/* ---- Hero ---- */
.hero {
  margin-top: 64px;
  background: linear-gradient(135deg, #1a2d5a 0%, #00b4d8 100%);
  color: #fff;
  padding: 100px 5% 80px;
  text-align: center;
}
.hero h1 { font-size: 42px; font-weight: 800; margin-bottom: 16px; }
.hero p { font-size: 18px; opacity: 0.9; max-width: 640px; margin: 0 auto 32px; }
.hero-btn {
  display: inline-block;
  background: #f4a261; color: #fff;
  padding: 14px 40px; border-radius: 8px;
  font-size: 16px; font-weight: 600;
  text-decoration: none; transition: background 0.2s;
}
.hero-btn:hover { background: #e8954f; }

/* ---- 三面教学维度 ---- */
.dimensions {
  max-width: 1200px; margin: 0 auto; padding: 80px 5%;
}
.dimensions h2 {
  text-align: center; font-size: 32px; color: #1a2d5a;
  margin-bottom: 48px;
}
.dim-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.dim-card {
  background: #f7f9fc; border-radius: 12px;
  padding: 36px 28px; text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.dim-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.08); }
.dim-icon { font-size: 40px; margin-bottom: 16px; }
.dim-card h3 { font-size: 20px; color: #1a2d5a; margin-bottom: 12px; }
.dim-card p { font-size: 14px; color: #555; line-height: 1.8; }

/* ---- 核心营推荐 ---- */
.featured-camps {
  background: #f7f9fc;
  max-width: 100%; padding: 80px 5%;
}
.featured-camps h2 {
  text-align: center; font-size: 32px; color: #1a2d5a;
  margin-bottom: 48px;
}
.camp-cards { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.camp-card {
  background: #fff; border-radius: 12px; overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}
.camp-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.1); }
.camp-card-img {
  height: 180px; background: linear-gradient(135deg, #1a2d5a, #00b4d8);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 22px; font-weight: 700;
}
.camp-card-body { padding: 24px; }
.camp-card-body h3 { font-size: 18px; color: #1a2d5a; margin-bottom: 8px; }
.camp-card-body .camp-meta { font-size: 13px; color: #888; margin-bottom: 12px; }
.camp-card-body .camp-meta span { margin-right: 16px; }
.camp-card-body p { font-size: 14px; color: #555; margin-bottom: 16px; line-height: 1.7; }
.camp-card-body .camp-price { font-size: 20px; font-weight: 700; color: #f4a261; margin-bottom: 16px; }
.camp-card-body .camp-btn {
  display: block; text-align: center;
  background: #1a2d5a; color: #fff;
  padding: 10px; border-radius: 6px;
  text-decoration: none; font-size: 14px; font-weight: 600;
  transition: background 0.2s;
}
.camp-card-body .camp-btn:hover { background: #00b4d8; }

/* ---- 教育投行 ---- */
.invest-section {
  max-width: 1200px; margin: 0 auto; padding: 80px 5%;
}
.invest-section h2 { text-align: center; font-size: 32px; color: #1a2d5a; margin-bottom: 16px; }
.invest-section > p.subtitle { text-align: center; color: #888; margin-bottom: 48px; font-size: 16px; }
.invest-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.invest-card {
  border: 2px solid #eef1f6; border-radius: 12px; padding: 32px 24px; text-align: center;
  transition: border-color 0.2s;
}
.invest-card:hover { border-color: #00b4d8; }
.invest-card h3 { font-size: 18px; color: #1a2d5a; margin-bottom: 12px; }
.invest-card p { font-size: 14px; color: #666; line-height: 1.8; }

/* ---- 数据背书 ---- */
.stats {
  background: #1a2d5a; color: #fff;
  padding: 60px 5%; text-align: center;
}
.stats-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-around; }
.stat-item h3 { font-size: 40px; color: #00b4d8; }
.stat-item p { font-size: 15px; opacity: 0.8; margin-top: 8px; }

/* ---- 关于简介 ---- */
.about-preview {
  max-width: 1200px; margin: 0 auto; padding: 80px 5%;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-text h2 { font-size: 32px; color: #1a2d5a; margin-bottom: 20px; }
.about-text p { font-size: 15px; color: #555; margin-bottom: 16px; line-height: 1.9; }
.about-text .about-btn {
  display: inline-block; background: #00b4d8; color: #fff;
  padding: 12px 32px; border-radius: 6px; text-decoration: none;
  font-size: 15px; font-weight: 600; margin-top: 8px;
}
.about-badges { display: flex; flex-wrap: wrap; gap: 16px; }
.badge {
  background: #f7f9fc; border-radius: 8px; padding: 20px; flex: 1 1 40%;
  text-align: center;
}
.badge h4 { font-size: 15px; color: #1a2d5a; }

/* ---- Footer ---- */
footer {
  background: #0d1b3e; color: #ccc;
  padding: 60px 5% 30px;
}
.footer-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 20px; }
.footer-col p, .footer-col a { font-size: 14px; color: #aaa; line-height: 2; text-decoration: none; display: block; }
.footer-col a:hover { color: #00b4d8; }
.footer-bottom { max-width: 1200px; margin: 40px auto 0; padding-top: 20px; border-top: 1px solid #1a2d5a; text-align: center; font-size: 13px; color: #666; }

/* ---- 通用 ---- */
.section-title { text-align: center; }
.section-title h2 { font-size: 32px; color: #1a2d5a; }
.section-title p { color: #888; margin-top: 8px; }

/* ---- 响应式 ---- */
@media (max-width: 900px) {
  .dim-grid, .camp-cards, .invest-grid { grid-template-columns: 1fr; }
  .about-preview { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .hero h1 { font-size: 28px; }
  .stats-inner { flex-direction: column; gap: 32px; }
}