:root {
  color-scheme: light;
  --paper: #f7f2e7;
  --ink: #203836;
  --muted: #65716d;
  --jade: #176f66;
  --gold: #b58b38;
  --line: rgba(32, 56, 54, 0.16);
  --card: rgba(255, 253, 247, 0.88);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgba(181, 139, 56, 0.10), transparent 28rem),
    linear-gradient(180deg, #fbf8f0, var(--paper));
  color: var(--ink);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Noto Sans CJK SC", "Segoe UI", sans-serif;
}

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

.shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 248, 240, 0.9);
  backdrop-filter: blur(14px);
}

header .shell {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--ink);
  font-family: "Songti SC", "STSong", serif;
  font-size: 22px;
  font-weight: 700;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

main { padding: 56px 0 72px; }

.hero { padding: 34px 0 52px; }

.eyebrow {
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
}

h1, h2, h3 {
  font-family: "Songti SC", "STSong", serif;
  line-height: 1.3;
}

h1 {
  margin: 12px 0 18px;
  font-size: clamp(36px, 7vw, 68px);
  font-weight: 600;
}

h2 {
  margin: 48px 0 18px;
  font-size: 28px;
}

h3 { margin: 28px 0 10px; font-size: 20px; }

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 19px;
}

.notice {
  margin: 24px 0;
  padding: 16px 18px;
  border: 1px solid rgba(181, 139, 56, .35);
  border-radius: 12px;
  background: rgba(255, 248, 226, .8);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
}

.card h3 { margin-top: 0; }

.meta {
  color: var(--muted);
  font-size: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
}

th, td {
  padding: 12px 14px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th { background: rgba(23, 111, 102, .06); }

footer {
  padding: 28px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 720px) {
  header .shell { align-items: flex-start; flex-direction: column; padding: 16px 0; }
  .grid { grid-template-columns: 1fr; }
  main { padding-top: 28px; }
  th, td { padding: 10px; }
}