* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  color: #333;
  line-height: 1.8;
  background: #fff;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* 顶部信息条 */
.topbar { background: #0b2a4a; color: #c9d6e3; font-size: 13px; padding: 6px 0; }
.topbar .container { display: flex; justify-content: space-between; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 导航 */
header {
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,.08);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.logo { font-size: 24px; font-weight: bold; color: #0b2a4a; letter-spacing: 2px; }
.logo span { color: #c8a45c; }
.nav-links { display: flex; gap: 8px; list-style: none; }
.nav-links a {
  display: block; padding: 10px 18px; font-size: 15px; color: #333;
  border-radius: 4px; transition: .3s;
}
.nav-links a:hover, .nav-links a.active { background: #0b2a4a; color: #fff; }
.menu-toggle {
  display: none; font-size: 26px; background: none;
  border: none; cursor: pointer; color: #0b2a4a;
}

/* 首页大图 */
.hero {
  height: 520px;
  background: linear-gradient(rgba(11,42,74,.65), rgba(11,42,74,.65)),
    url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1600') center/cover;
  display: flex; align-items: center; justify-content: center;
  text-align: center; color: #fff;
}
.hero h1 { font-size: 46px; letter-spacing: 4px; margin-bottom: 18px; }
.hero p { font-size: 18px; color: #dbe4ee; max-width: 700px; margin: 0 auto 30px; }
.btn {
  display: inline-block; padding: 12px 34px; background: #c8a45c;
  color: #fff; border-radius: 4px; font-size: 15px; transition: .3s;
}
.btn:hover { background: #b08d47; }

/* 通用区块 */
.section { padding: 70px 0; }
.section-title { text-align: center; margin-bottom: 45px; }
.section-title h2 { font-size: 30px; color: #0b2a4a; letter-spacing: 2px; }
.section-title .line { width: 60px; height: 3px; background: #c8a45c; margin: 12px auto 0; }
.section-title p { color: #888; font-size: 14px; margin-top: 10px; }

/* 首页介绍 */
.about-home { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-home img { border-radius: 6px; height: 360px; object-fit: cover; width: 100%; }
.about-home h3 { font-size: 26px; color: #0b2a4a; margin-bottom: 18px; }
.about-home p { color: #666; margin-bottom: 14px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; margin-top: 25px; }
.stat-box { text-align: center; padding: 18px 8px; background: #f5f7fa; border-radius: 6px; }
.stat-box .num { font-size: 28px; font-weight: bold; color: #c8a45c; }
.stat-box .label { font-size: 13px; color: #666; }

/* 业务卡片 */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid #eee; border-radius: 8px;
  padding: 32px 22px; text-align: center; transition: .3s;
}
.card:hover {
  transform: translateY(-6px); box-shadow: 0 12px 30px rgba(0,0,0,.1);
  border-color: #c8a45c;
}
.card .icon {
  width: 60px; height: 60px; margin: 0 auto 18px; background: #0b2a4a;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 26px;
}
.card h4 { font-size: 18px; color: #0b2a4a; margin-bottom: 10px; }
.card p { font-size: 14px; color: #777; }

/* 新闻列表 */
.news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-item {
  display: flex; gap: 20px; border: 1px solid #eee; border-radius: 8px;
  overflow: hidden; transition: .3s; background: #fff;
}
.news-item:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); }
.news-date {
  flex: 0 0 90px; background: #0b2a4a; color: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 20px 0;
}
.news-date .day { font-size: 30px; font-weight: bold; }
.news-date .ym { font-size: 12px; color: #c9d6e3; }
.news-content { padding: 18px 18px 18px 0; }
.news-content h4 { font-size: 17px; color: #0b2a4a; margin-bottom: 8px; }
.news-content p { font-size: 14px; color: #777; }

/* 页面 banner */
.page-banner {
  height: 260px;
  background: linear-gradient(rgba(11,42,74,.7), rgba(11,42,74,.7)),
    url('https://images.unsplash.com/photo-1497366216548-37526070297c?w=1600') center/cover;
  display: flex; align-items: center; justify-content: center;
  color: #fff; text-align: center;
}
.page-banner h1 { font-size: 36px; letter-spacing: 3px; }

/* 简介页 */
.about-content h2 {
  font-size: 24px; color: #0b2a4a; margin: 30px 0 15px;
  padding-left: 12px; border-left: 4px solid #c8a45c;
}
.about-content p { color: #555; margin-bottom: 14px; text-indent: 2em; }
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 20px; }
.honor-grid .honor {
  background: #f5f7fa; padding: 24px; border-radius: 6px;
  text-align: center; color: #0b2a4a; font-size: 15px;
}

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info .item { display: flex; gap: 16px; margin-bottom: 26px; }
.contact-info .item .ico {
  flex: 0 0 46px; height: 46px; background: #0b2a4a; color: #fff;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.contact-info .item h4 { color: #0b2a4a; font-size: 16px; margin-bottom: 4px; }
.contact-info .item p { color: #666; font-size: 14px; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 12px 14px; border: 1px solid #ddd;
  border-radius: 6px; margin-bottom: 16px; font-family: inherit; font-size: 14px;
}
.contact-form textarea { height: 120px; resize: vertical; }
.contact-form button {
  padding: 12px 34px; background: #0b2a4a; color: #fff;
  border: none; border-radius: 6px; cursor: pointer; font-size: 15px;
}
.contact-form button:hover { background: #123a63; }

/* 页脚 */
footer { background: #0b2a4a; color: #a9bdd0; padding: 50px 0 25px; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 30px; }
.footer-grid h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-grid p, .footer-grid li { font-size: 14px; color: #a9bdd0; line-height: 2; list-style: none; }
.footer-grid a:hover { color: #c8a45c; }
.copyright {
  text-align: center; border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 20px; font-size: 13px; color: #7d94aa;
}

/* 响应式 */
@media (max-width: 992px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links {
    position: absolute; top: 80px; left: 0; right: 0; background: #fff;
    flex-direction: column; padding: 10px 20px;
    box-shadow: 0 8px 16px rgba(0,0,0,.1); display: none;
  }
  .nav-links.open { display: flex; }
  .menu-toggle { display: block; }
  .hero { height: 420px; }
  .hero h1 { font-size: 30px; letter-spacing: 2px; }
  .hero p { font-size: 15px; padding: 0 20px; }
  .about-home { grid-template-columns: 1fr; gap: 25px; }
  .news-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 25px; }
  .cards { grid-template-columns: 1fr; }
  .topbar .container { justify-content: center; }
  .topbar .right { display: none; }
}