@charset "utf-8";
/* ============ 全局重置 ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #333;
  line-height: 1.7;
  background: #f7f9fc;
  font-size: 15px;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { font-weight: 600; line-height: 1.4; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ============ 顶部信息条 ============ */
.topbar {
  background: #1a3a5c;
  color: #d0dce8;
  font-size: 13px;
  padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ============ 头部导航 ============ */
.site-header {
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  flex-wrap: wrap;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 48px; width: auto; }
.brand-text h1 { font-size: 18px; color: #1a3a5c; letter-spacing: 0.5px; }
.brand-text p { font-size: 12px; color: #7a8fa6; margin-top: 2px; }
.main-nav { display: flex; gap: 28px; }
.main-nav a {
  font-size: 15px;
  color: #33475b;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.main-nav a:hover, .main-nav a.active {
  color: #1a73e8;
  border-bottom-color: #1a73e8;
}
.header-cta { display: flex; align-items: center; }
.phone-btn { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.3; }
.phone-btn span { font-size: 11px; color: #7a8fa6; }
.phone-btn strong { font-size: 17px; color: #e63946; font-weight: 700; }

/* ============ Hero 首屏 ============ */
.hero {
  background: linear-gradient(135deg, #1a3a5c 0%, #2c5f8d 100%);
  color: #fff;
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-text h2 { font-size: 34px; margin-bottom: 18px; line-height: 1.3; }
.hero-text .slogan-main {
  font-size: 20px;
  color: #a8d4ff;
  margin-bottom: 14px;
  font-weight: 500;
}
.hero-text p { font-size: 15px; color: #c8ddf0; margin-bottom: 26px; line-height: 1.8; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-btns .btn-primary {
  background: #ff6b35;
  color: #fff;
  padding: 13px 32px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  transition: transform 0.2s;
}
.hero-btns .btn-primary:hover { transform: translateY(-2px); }
.hero-btns .btn-secondary {
  background: rgba(255,255,255,0.12);
  color: #fff;
  padding: 13px 32px;
  border-radius: 8px;
  font-size: 16px;
  border: 1px solid rgba(255,255,255,0.3);
}
.hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.stat-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  backdrop-filter: blur(10px);
}
.stat-card strong { display: block; font-size: 28px; color: #ffd166; margin-bottom: 4px; }
.stat-card span { font-size: 13px; color: #c8ddf0; }

/* ============ 资质公示条 ============ */
.qualification-bar {
  background: #fff;
  border-left: 4px solid #1a73e8;
  padding: 18px 24px;
  margin: -30px auto 0;
  max-width: 1200px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  position: relative;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.qualification-bar .cert-item { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.qualification-bar .cert-icon {
  width: 36px;
  height: 36px;
  background: #e8f0fe;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1a73e8;
  font-weight: 700;
  font-size: 16px;
}
.qualification-bar strong { color: #1a3a5c; }

/* ============ 通用 Section ============ */
.section { padding: 60px 0; }
.section-title { text-align: center; margin-bottom: 40px; }
.section-title h2 { font-size: 26px; color: #1a3a5c; margin-bottom: 10px; }
.section-title p { color: #7a8fa6; font-size: 14px; }
.section-title h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: #ff6b35;
  margin: 14px auto 0;
  border-radius: 2px;
}

/* ============ 首页线路卡片（5列） ============ */
.route-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.route-tile {
  display: block;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: all 0.3s;
  text-decoration: none;
}
.route-tile:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 28px rgba(26,115,232,0.18);
}
.route-tile .tile-img {
  width: 100%;
  aspect-ratio: 3 / 4;   /* 600×800 比例 */
  overflow: hidden;
  background: #eef2f7;
}
.route-tile .tile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}
.route-tile:hover .tile-img img { transform: scale(1.06); }
.route-tile .tile-title {
  padding: 14px 10px;
  font-size: 14px;
  color: #1a3a5c;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  min-height: 58px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.25s;
}
.route-tile:hover .tile-title { color: #1a73e8; }

.route-more-btn {
  display: inline-block;
  padding: 12px 36px;
  background: #1a73e8;
  color: #fff;
  border-radius: 8px;
  font-size: 15px;
  transition: background 0.2s;
}
.route-more-btn:hover { background: #1558b0; }

/* 响应式 */
@media (max-width: 1100px) {
  .route-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 900px) {
  .route-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .route-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .route-tile .tile-title { font-size: 13px; padding: 10px 8px; min-height: 50px; }
}

/* ============ 优势区（6个一行） ============ */
.advantages-section { background: #fff; }
.adv-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.adv-item {
  text-align: center;
  padding: 26px 10px;
  border-radius: 12px;
  background: #f7f9fc;
  transition: all 0.3s;
  border: 1px solid transparent;
}
.adv-item:hover {
  background: #fff;
  border-color: #1a73e8;
  box-shadow: 0 8px 20px rgba(26,115,232,0.1);
}
.adv-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 12px;
  background: linear-gradient(135deg, #1a73e8, #4a9eff);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  font-weight: 700;
}
.adv-item h3 { font-size: 15px; color: #1a3a5c; margin-bottom: 5px; }
.adv-item p { font-size: 12px; color: #7a8fa6; line-height: 1.5; }

/* ============ 攻略区（双版块） ============ */
.articles-section { background: #f7f9fc; }
.article-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.article-block {
  background: #fff;
  border-radius: 14px;
  padding: 26px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.article-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid #f0f4f9;
}
.article-block-header h3 {
  font-size: 19px;
  color: #1a3a5c;
  display: flex;
  align-items: center;
  gap: 10px;
}
.article-block-header h3::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 20px;
  background: #ff6b35;
  border-radius: 2px;
}
.article-block-header a {
  font-size: 13px;
  color: #1a73e8;
}
.article-list { list-style: none; }
.article-list li {
  padding: 12px 0;
  border-bottom: 1px dashed #eef2f7;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.article-list li:last-child { border-bottom: none; }
.article-list li a {
  font-size: 14px;
  color: #33475b;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.2s;
}
.article-list li a:hover { color: #1a73e8; }
.article-list li .date {
  font-size: 12px;
  color: #a0b0c2;
  flex-shrink: 0;
}

/* ============ 信任背书区 ============ */
.trust-section { background: #fff; }
.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: center;
}
.trust-images { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.trust-images img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 10px;
}
.trust-images img:first-child { grid-row: span 2; height: 332px; }
.trust-content h2 { font-size: 24px; color: #1a3a5c; margin-bottom: 16px; }
.trust-content p { color: #5a6f85; margin-bottom: 20px; line-height: 1.9; }
.trust-stats { display: flex; gap: 30px; margin-top: 20px; }
.trust-stats div strong { display: block; font-size: 26px; color: #e63946; }
.trust-stats div span { font-size: 13px; color: #7a8fa6; }

/* ============ FAQ区 ============ */
.faq-section { background: #f7f9fc; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid #e8eef5;
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  background: #fff;
}
.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: #1a3a5c;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::after {
  content: '+';
  font-size: 20px;
  color: #1a73e8;
  transition: transform 0.2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { padding: 0 20px 18px; color: #5a6f85; font-size: 14px; line-height: 1.8; }

/* ============ 底部 ============ */
.site-footer {
  background: #142c44;
  color: #a8bdd4;
  padding: 50px 0 20px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-col p { margin-bottom: 8px; line-height: 1.8; }
.footer-col a { color: #a8bdd4; }
.footer-col a:hover { color: #4a9eff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: #6a8aa8;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .adv-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-text h2 { font-size: 24px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .main-nav { display: none; }
  .trust-grid { grid-template-columns: 1fr; }
  .qualification-bar { flex-direction: column; align-items: flex-start; }
  .header-inner { justify-content: center; }
  .section { padding: 40px 0; }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .article-columns { grid-template-columns: 1fr; }
}