:root {
  --primary: #0b6e4f;
  --primary-dark: #084c37;
  --accent: #1a9e77;
  --text: #222;
  --muted: #667;
  --bg: #f6f9f8;
  --white: #fff;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.container { width: min(1100px, 92%); margin: 0 auto; }

/* 顶部信息条 */
.topbar { background: var(--primary-dark); color: #cfe8de; font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; padding: 6px 0; }

/* 页头 */
header.site {
  background: var(--white);
  border-bottom: 1px solid #e3eae7;
  position: sticky; top: 0; z-index: 50;
}
.site .container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; padding: 14px 0; }
.logo .mark {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-weight: 700; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
}
.logo .name { font-size: 20px; font-weight: 700; color: var(--primary-dark); }
.logo .sub { font-size: 12px; color: var(--muted); }
nav.main ul { display: flex; list-style: none; gap: 4px; }
nav.main a {
  display: block; padding: 10px 16px; font-size: 15px; border-radius: 8px;
}
nav.main a:hover, nav.main a.active { background: #eaf4f0; color: var(--primary-dark); font-weight: 600; }

/* Banner */
.banner {
  background: linear-gradient(120deg, #084c37 0%, #0b6e4f 55%, #1a9e77 100%);
  color: #fff; padding: 72px 0 84px;
}
.banner h1 { font-size: 34px; margin-bottom: 14px; }
.banner p { font-size: 17px; color: #d8efe7; max-width: 640px; }
.banner .tip {
  display: inline-block; margin-top: 22px; padding: 8px 16px;
  border: 1px solid rgba(255,255,255,.45); border-radius: 999px;
  font-size: 13px; color: #eafff7;
}

/* 区块 */
section.block { padding: 56px 0; }
section.block.alt { background: var(--white); }
.block h2 { font-size: 26px; color: var(--primary-dark); margin-bottom: 6px; }
.block h2::after {
  content: ""; display: block; width: 46px; height: 4px;
  background: var(--accent); border-radius: 2px; margin-top: 10px;
}
.block .lead { color: var(--muted); margin: 12px 0 30px; }

/* 卡片 */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.card {
  background: var(--white); border: 1px solid #e3eae7; border-radius: 12px;
  padding: 24px; transition: box-shadow .2s;
}
.card:hover { box-shadow: 0 8px 24px rgba(8,76,55,.10); }
.card h3 { font-size: 17px; color: var(--primary-dark); margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--muted); }
.card .tag {
  display: inline-block; font-size: 12px; color: var(--primary);
  background: #eaf4f0; border-radius: 6px; padding: 2px 8px; margin-bottom: 10px;
}

/* 资质列表 */
.quota { list-style: none; display: grid; gap: 14px; }
.quota li {
  background: var(--white); border-left: 4px solid var(--accent);
  border-radius: 8px; padding: 14px 18px; font-size: 15px;
  box-shadow: 0 2px 8px rgba(8,76,55,.05);
}
.quota b { color: var(--primary-dark); }
.quota .note { color: #b3541e; font-size: 13px; }

/* 新闻列表 */
.news li { list-style: none; padding: 14px 0; border-bottom: 1px dashed #dde7e3; }
.news time { color: var(--muted); font-size: 13px; margin-right: 12px; }
.news a:hover { color: var(--primary); }

/* 联系 */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.contact-grid .card p { font-size: 15px; color: var(--text); }

/* 页脚 */
footer.site { background: #08301f; color: #9fc4b4; padding: 36px 0 24px; font-size: 13px; }
footer.site h4 { color: #fff; font-size: 15px; margin-bottom: 10px; }
footer.site .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }
footer.site a:hover { color: #fff; }
.icp {
  border-top: 1px solid rgba(255,255,255,.12); margin-top: 26px; padding-top: 16px;
  text-align: center; color: #7fa392;
}
.icp .warn { color: #e8c268; }
@media (max-width: 720px) {
  nav.main ul { flex-wrap: wrap; }
  footer.site .cols { grid-template-columns: 1fr; }
}