:root {
  --primary: #0d4f87;
  --primary-soft: #eaf4fd;
  --accent: #0f7f96;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1e2d3d;
  --muted: #64788f;
  --line: #dbe5f0;
  --hot: #f97316;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo { font-size: 18px; font-weight: 700; color: var(--primary); }
.menu {
  display: flex;
  gap: 18px;
  color: #4f647a;
  font-size: 14px;
  flex-wrap: wrap;
}
.menu a { padding: 6px 0; }
.menu a:hover, .menu a.active { color: var(--primary); }
.hero {
  background: linear-gradient(130deg, #edf6ff 0%, #f7fbff 55%, #edf8f8 100%);
  border-bottom: 1px solid var(--line);
  padding: 54px 0 42px;
}
.hero h1 {
  margin: 0;
  font-size: 38px;
  line-height: 1.25;
  color: #123f67;
}
.hero p {
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 860px;
  line-height: 1.9;
}
.tag-row {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.tag {
  display: inline-block;
  background: #fff;
  border: 1px solid #d7e6f3;
  border-radius: 999px;
  font-size: 12px;
  color: #42617f;
  padding: 6px 10px;
}
.section { padding: 44px 0; }
.section-title {
  margin: 0 0 8px;
  font-size: 28px;
  color: #173f64;
}
.section-desc {
  margin: 0 0 20px;
  color: var(--muted);
  line-height: 1.8;
  font-size: 14px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.product {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 8px 22px rgba(20, 69, 109, 0.06);
  position: relative;
}
.badge {
  position: absolute;
  right: 12px;
  top: 12px;
  font-size: 12px;
  background: #fff3e8;
  border: 1px solid #ffd8b4;
  color: #bb5a10;
  border-radius: 999px;
  padding: 4px 8px;
}
.product h3 {
  margin: 0;
  font-size: 18px;
  color: #174b78;
}
.sub {
  margin: 6px 0 12px;
  font-size: 13px;
  color: #67829c;
}
.price {
  margin: 0;
  font-size: 30px;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: .4px;
}
.price small {
  font-size: 13px;
  color: #6f879f;
  font-weight: 500;
  margin-left: 4px;
}
.list {
  margin: 12px 0 16px;
  padding-left: 18px;
  color: #4f647b;
  line-height: 1.8;
  font-size: 14px;
}
.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  margin-right: 8px;
  margin-bottom: 8px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-line {
  border: 1px solid #bdd4e8;
  color: #2e5679;
  background: #fff;
}
.tiers {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  border-bottom: 1px solid #e4ecf5;
  padding: 12px 14px;
  text-align: left;
}
th {
  background: #f6faff;
  color: #365d80;
  font-size: 13px;
}
tr:last-child td { border-bottom: none; }
.note {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.8;
  color: #5f748b;
}
.cta {
  background: #113f66;
  color: #dbeaf8;
  border-radius: 14px;
  padding: 24px;
  line-height: 1.9;
}
.cta strong { color: #ffffff; }
.page-head {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 26px 0;
}
.page-head h1 { margin: 0; font-size: 30px; color: #133e64; }
.breadcrumb { margin-top: 8px; color: #6e8399; font-size: 13px; }
.content-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  line-height: 1.9;
  color: #4f647a;
}
.news-list, .case-list {
  display: grid;
  gap: 14px;
}
.news-item, .case-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}
.news-item h3, .case-item h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: #1b496f;
}
.news-meta {
  font-size: 12px;
  color: #7b91a7;
  margin-bottom: 8px;
}
.pager {
  margin-top: 20px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.pager a, .pager span {
  min-width: 34px;
  text-align: center;
  border: 1px solid var(--line);
  background: #fff;
  color: #4d6278;
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 13px;
}
.pager .active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 12px;
}
.input, .textarea {
  width: 100%;
  border: 1px solid #cfe0ee;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  color: #284055;
  background: #fff;
}
.textarea { min-height: 130px; resize: vertical; }
.full { grid-column: 1 / -1; }
footer {
  padding: 24px 0 34px;
  text-align: center;
  color: #748da4;
  font-size: 13px;
}
@media (max-width: 860px) {
  .menu { display: none; }
  .hero h1 { font-size: 31px; }
  .form-grid { grid-template-columns: 1fr; }
}