:root {
  --ink: #1c2430;
  --muted: #5c6675;
  --line: #e2dcd2;
  --paper: #f6f3ee;
  --card: #fffcf8;
  --accent: #0f5f5c;
  --accent-soft: #e5f2f1;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 420px at 100% -10%, #efe7da 0%, transparent 60%),
    var(--paper);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #0a3f3d; }

.wrap { width: min(880px, calc(100% - 40px)); margin: 0 auto; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0 18px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.brand strong { font-size: 18px; letter-spacing: 0.08em; }
.brand span { color: var(--muted); font-size: 12px; letter-spacing: 0.04em; }

nav { display: flex; gap: 18px; font-size: 14px; }
nav a { color: var(--ink); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--accent); }

main { padding: 36px 0 64px; }

.hero h1 {
  margin: 0 0 8px;
  font-family: Palatino, "Palatino Linotype", "Songti SC", serif;
  font-size: 42px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.lede { font-size: 18px; max-width: 40em; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 8px 22px 18px;
  margin: 28px 0;
}

.panel h2, article h2 {
  font-size: 20px;
  margin: 28px 0 8px;
}

.points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 22px 0 8px; }
.point { background: var(--accent-soft); border-radius: 14px; padding: 16px 16px 12px; }
.point strong { display: block; margin-bottom: 6px; }
.point p { margin: 0; color: var(--ink); font-size: 14px; }

.lang {
  margin-top: 42px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

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

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  padding: 18px 0 28px;
}

ul { padding-left: 1.2em; }
li { margin: 4px 0; }

@media (max-width: 720px) {
  .points { grid-template-columns: 1fr; }
  header { align-items: flex-start; flex-direction: column; }
  .hero h1 { font-size: 34px; }
}