:root {
  --bg: #f2f6fb;
  --paper: #ffffff;
  --ink: #182433;
  --muted: #516376;
  --line: #dce6f2;
  --brand: #0b63f6;
  --brand-ink: #0a4fc4;
  --ok-bg: #eaf8ef;
  --ok-ink: #16543a;
  --warn-bg: #fff5e9;
  --warn-ink: #7a4d00;
  --shadow: rgba(20, 49, 80, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "PingFang SC", "Noto Sans SC", "Inter", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 0%, rgba(146, 190, 255, 0.28), transparent 36%),
    radial-gradient(circle at 92% 8%, rgba(170, 230, 207, 0.24), transparent 34%),
    var(--bg);
}

.site-shell {
  width: min(1080px, 94vw);
  margin: 22px auto 48px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.site-nav a {
  text-decoration: none;
  color: var(--brand-ink);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: #f9fbff;
  border-radius: 999px;
}

.site-nav a:hover {
  border-color: #c6d7ee;
  background: #f3f8ff;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  margin-top: 12px;
  box-shadow: 0 10px 20px var(--shadow);
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4.5vw, 38px);
  line-height: 1.15;
}

h2 {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.8vw, 24px);
}

h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

p,
li {
  color: var(--muted);
  line-height: 1.7;
}

pre {
  margin: 10px 0;
  background: #0b1220;
  color: #d8e8ff;
  border-radius: 10px;
  padding: 12px;
  overflow-x: auto;
  font-size: 13px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

a {
  color: var(--brand);
}

a:hover {
  color: var(--brand-ink);
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid #c9daf5;
  color: #2f538f;
  background: #edf4ff;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.grid {
  display: grid;
  gap: 12px;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.project-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f9fcff;
  padding: 14px;
}

.project-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.project-card h3 {
  margin-top: 8px;
}

.status {
  border-radius: 999px;
  border: 1px solid #b7caec;
  background: #eaf3ff;
  color: #36588f;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: 700;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 10px;
  border: none;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  background: linear-gradient(135deg, #0b66ff, #4b93ff);
  color: #fff;
  padding: 0 14px;
}

.btn:hover {
  color: #fff;
  filter: brightness(0.97);
}

.callout-ok {
  background: var(--ok-bg);
  border: 1px solid #bfe2cf;
  color: var(--ok-ink);
  border-radius: 10px;
  padding: 10px;
}

.callout-warn {
  background: var(--warn-bg);
  border: 1px solid #ffdca8;
  color: var(--warn-ink);
  border-radius: 10px;
  padding: 10px;
}

.site-footer {
  margin-top: 16px;
  padding: 12px 4px 0;
  border-top: 1px dashed #c8d6e8;
  display: grid;
  gap: 8px;
}

.site-footer p {
  margin: 0;
  font-size: 13px;
}

.site-footer__beian {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
}

.site-footer__beian a {
  text-decoration: none;
  color: #48618a;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.site-footer__beian a:hover {
  text-decoration: underline;
}

.site-footer__beian .gongan-icon {
  width: 16px;
  height: 16px;
  display: inline-block;
  object-fit: contain;
}

@media (max-width: 680px) {
  .site-shell {
    width: min(1080px, 96vw);
    margin-top: 14px;
  }

  .card {
    padding: 14px;
    border-radius: 13px;
  }

  .site-footer__beian {
    gap: 8px 12px;
  }
}