/* Site 5: cold gray, blue, table-first, 3 scheme cards */
:root {
  --bg: #e8eef2;
  --blue: #1d4e89;
  --navy: #0f2c4c;
  --ink: #1c2836;
  --muted: #4d5d6d;
  --card: #f7fafc;
}

* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Trebuchet MS", "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

.top {
  background: var(--blue);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 4vw;
}
.brand-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}
.nav-row a {
  color: #d6e6f5;
  margin-left: 16px;
  text-decoration: none;
  font-size: 14px;
}
.nav-row a:hover { color: #fff; }

.tiny-hero {
  padding: 28px 4vw 12px;
  max-width: 880px;
}
.tiny-hero h1 {
  font-size: clamp(24px, 3vw, 34px);
  margin: 0 0 10px;
  color: var(--navy);
}
.tiny-hero p { margin: 0 0 8px; color: var(--muted); }

.table-wrap {
  padding: 8px 4vw 28px;
  overflow-x: auto;
}
.big {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: #fff;
}
.big th {
  background: var(--navy);
  color: #fff;
  padding: 14px 12px;
  text-align: left;
}
.big td {
  padding: 12px;
  border-bottom: 1px solid #cfd8e0;
  vertical-align: top;
  color: var(--muted);
}
.big tr:nth-child(odd) td { background: #f0f5f8; }
.big .col-web { box-shadow: inset 3px 0 0 var(--blue); }

.schemes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 0 4vw 28px;
}
.scheme {
  background: var(--card);
  padding: 20px 18px 22px;
  border-right: 1px solid #d5dee6;
}
.scheme:first-child { border-top: 8px solid #7a8b99; }
.scheme:nth-child(2) { border-top: 8px solid var(--blue); background: #fff; }
.scheme:last-child { border-top: 8px solid #3d6b4f; border-right: 0; }
.scheme h2 { font-size: 18px; margin: 8px 0; }
.scheme p { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.scheme ul { margin: 0; padding-left: 18px; color: var(--muted); }
.scheme li { margin-bottom: 6px; }

.avoid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0 4vw 28px;
}
.avoid > div { padding: 22px 24px; min-height: 180px; }
.avoid .left { background: var(--navy); color: #d7e4f0; }
.avoid .right { background: #fff; }
.avoid h2 { margin: 0 0 10px; font-size: 20px; }
.avoid .left h2 { color: #fff; }
.avoid p { margin: 0 0 8px; }
.avoid .right p { color: var(--muted); }

.strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0 4vw 28px;
}
.strip article {
  background: #fff;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 10px;
  align-items: start;
}
.strip b {
  width: 36px;
  height: 36px;
  background: var(--blue);
  color: #fff;
  display: grid;
  place-items: center;
}
.strip h2 { font-size: 16px; margin: 0 0 6px; }
.strip p { margin: 0; color: var(--muted); font-size: 14px; }

.cost, .limit {
  margin: 0 4vw 24px;
  background: #fff;
  padding: 20px 22px;
}
.cost h2, .limit h2 { margin: 0 0 8px; color: var(--navy); }
.cost p, .limit p { margin: 0 0 8px; color: var(--muted); }

.qa {
  margin: 0 4vw 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.qa article {
  background: #fff;
  padding: 14px 16px;
  border-left: 4px solid var(--blue);
}
.qa h3 { margin: 0 0 6px; font-size: 16px; color: var(--navy); }
.qa p { margin: 0 0 6px; color: var(--muted); font-size: 14px; }

.base {
  background: var(--navy);
  color: #b9c9d8;
  padding: 26px 4vw;
  font-size: 13px;
}
.base h2 { color: #fff; font-size: 14px; margin: 0 0 6px; }
.base p { margin: 0 0 8px; max-width: 900px; }

@media (max-width: 860px) {
  .schemes, .avoid, .strip, .qa { grid-template-columns: 1fr; }
  .top { flex-direction: column; align-items: flex-start; gap: 8px; }
  .nav-row a { margin-left: 0; margin-right: 12px; }
}