:root {
  color-scheme: light;
  --paper: #f6f0e4;
  --paper-deep: #e9dfcd;
  --surface: #fffdf8;
  --ink: #211d17;
  --muted: #706659;
  --line: rgba(71, 56, 39, 0.18);
  --cinnabar: #c7463b;
  --cinnabar-dark: #96342d;
  --gold: #d99b17;
  --jade: #287b5b;
  font-family: "SF Pro Text", "Segoe UI", Inter, system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--paper); scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(ellipse at 84% 8%, rgba(217, 155, 23, .10), transparent 26rem),
    linear-gradient(135deg, rgba(104, 78, 43, .035) 1px, transparent 1px),
    linear-gradient(45deg, rgba(104, 78, 43, .025) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 34px 34px, 34px 34px, auto;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.7;
}
a { color: var(--jade); text-underline-offset: 4px; }
a:hover { color: var(--cinnabar-dark); }
a:focus-visible, summary:focus-visible {
  outline: 3px solid var(--cinnabar);
  outline-offset: 4px;
  border-radius: 4px;
}
button, a { font: inherit; }

.site-header {
  display: grid;
  width: min(1180px, calc(100% - 48px));
  min-height: 88px;
  margin: 0 auto;
  align-items: center;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 11px; color: inherit; text-decoration: none; }
.brand img { width: 42px; height: 42px; border: 1px solid rgba(255, 215, 116, .72); border-radius: 12px; object-fit: cover; box-shadow: 0 6px 18px rgba(31, 23, 14, .15); }
.brand { font-size: 17px; font-weight: 800; letter-spacing: -.03em; }
.main-nav { display: flex; align-items: center; justify-content: center; gap: clamp(16px, 3vw, 34px); }
.main-nav a { position: relative; padding: 30px 0 27px; color: var(--muted); font-size: 14px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--ink); }
.main-nav a[aria-current="page"]::after { position: absolute; right: 0; bottom: 18px; left: 0; height: 2px; background: var(--cinnabar); content: ""; }
.language-switch { display: flex; padding: 3px; gap: 2px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255, 253, 248, .72); }
.language-switch a { display: grid; min-width: 38px; min-height: 34px; padding: 0 7px; place-items: center; border-radius: 8px; color: var(--muted); font-size: 11px; font-weight: 800; text-decoration: none; }
.language-switch a[aria-current="page"] { background: var(--ink); color: #fffdf8; }

main { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.hero { display: grid; min-height: 555px; padding: 72px 0 62px; align-items: center; grid-template-columns: minmax(0, 1fr) minmax(310px, 410px); gap: clamp(42px, 8vw, 112px); }
.hero-copy { max-width: 690px; }
.eyebrow, .example-label { margin: 0; color: var(--cinnabar); font-size: 11px; font-weight: 850; letter-spacing: .14em; line-height: 1.4; text-transform: uppercase; }
h1, h2, p { overflow-wrap: anywhere; }
h1 { max-width: 800px; margin: 18px 0 20px; font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: clamp(39px, 5.4vw, 66px); font-weight: 600; letter-spacing: -.045em; line-height: 1.06; }
.intro { max-width: 650px; margin: 0; color: var(--muted); font-size: clamp(17px, 1.7vw, 20px); line-height: 1.75; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; margin-top: 27px; }
.cta { display: inline-flex; min-height: 52px; padding: 13px 20px; align-items: center; justify-content: center; gap: 18px; border: 1px solid var(--cinnabar); border-radius: 12px; background: var(--cinnabar); color: #fffdf8; font-size: 14px; font-weight: 800; text-decoration: none; transition: background-color .16s ease, transform .16s ease; }
.cta:hover { transform: translateY(-1px); background: var(--cinnabar-dark); color: #fffdf8; }
.secondary-cta { display: inline-flex; min-height: 50px; padding: 10px 14px; align-items: center; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); font-size: 13px; font-weight: 750; text-decoration: none; }
.secondary-cta:hover { border-color: var(--jade); color: var(--jade); }
.handle { margin: 14px 0 0; font-size: 12px; }
.handle a { color: var(--muted); text-decoration-thickness: 1px; }
.example { position: relative; display: flex; min-height: 380px; padding: 30px; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(71, 56, 39, .18); border-radius: 22px; background: var(--surface); box-shadow: 0 24px 70px rgba(72, 51, 27, .12); text-align: center; }
.example::before { position: absolute; inset: 10px; border: 1px solid rgba(217, 155, 23, .27); border-radius: 15px; content: ""; pointer-events: none; }
.example-label { position: absolute; top: 30px; left: 30px; color: var(--jade); }
.hanzi { margin: 13px 0 0; color: var(--ink); font-family: "Songti SC", "Noto Serif CJK SC", "Iowan Old Style", Georgia, serif; font-size: clamp(92px, 12vw, 132px); line-height: 1.2; }
.pinyin { color: var(--cinnabar); font-family: "Iowan Old Style", Georgia, serif; font-size: 25px; letter-spacing: .04em; }
.translation { margin-top: 5px; color: var(--ink); font-size: 16px; font-weight: 700; }
.example-caption { margin-top: 28px; color: var(--muted); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }

.content-grid { display: grid; margin: 4px 0 38px; align-items: stretch; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.content-card { min-height: 174px; padding: 24px 25px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255, 253, 248, .84); }
.content-card h2 { margin: 0 0 9px; font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 24px; font-weight: 600; letter-spacing: -.025em; line-height: 1.25; }
.content-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.related { padding: 30px 0 50px; border-top: 1px solid var(--line); }
.related h2 { margin: 0 0 18px; font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: 28px; font-weight: 600; letter-spacing: -.03em; }
.topic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.topic-card { position: relative; display: block; min-height: 140px; padding: 22px 44px 22px 21px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--ink); text-decoration: none; transition: border-color .16s ease, transform .16s ease; }
.topic-card:hover { transform: translateY(-2px); border-color: rgba(199, 70, 59, .55); color: var(--ink); }
.topic-card > span:first-child { display: block; font-size: 16px; font-weight: 800; line-height: 1.35; }
.topic-card p { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.card-arrow { position: absolute; top: 18px; right: 18px; color: var(--cinnabar); font-size: 17px; }
.closing { padding: 10px 0 58px; }
.site-footer { display: flex; width: min(1180px, calc(100% - 48px)); min-height: 86px; margin: 0 auto; padding: 18px 0 max(25px, env(safe-area-inset-bottom)); align-items: flex-start; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.site-footer details { max-width: 620px; }
.site-footer summary { cursor: pointer; font-weight: 700; }
.site-footer details p { margin: 9px 0 0; line-height: 1.6; }
.legal-page main { min-height: 60vh; padding-top: 32px; }
.legal-page article { max-width: 820px; margin: 42px auto 70px; }
.legal-page .intro { margin-bottom: 24px; }
.legal-page .site-header .language-switch { grid-column: 3; justify-self: end; }
.legal-page article > section { margin: 12px 0; padding: 22px 0; border-top: 1px solid var(--line); }
.legal-page article > section h2 { margin: 0 0 8px; font-size: 22px; }
.legal-page article > section p { margin: 0; color: var(--muted); }

@media (max-width: 850px) {
  .site-header { grid-template-columns: auto 1fr; gap: 8px 18px; padding: 13px 0; }
  .main-nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; gap: 24px; }
  .main-nav a { padding: 8px 0; }
  .main-nav a[aria-current="page"]::after { bottom: 1px; }
  .language-switch { justify-self: end; }
  .legal-page .site-header .language-switch { grid-column: 2; grid-row: 1; }
  .hero { min-height: 0; padding: 54px 0 42px; grid-template-columns: minmax(0, 1fr) minmax(250px, 320px); gap: 28px; }
  .example { min-height: 320px; padding: 22px; }
  .example-label { top: 24px; left: 24px; }
  .hanzi { font-size: 98px; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .site-header, main, .site-footer { width: min(100% - 32px, 540px); }
  .site-header { grid-template-columns: minmax(0, 1fr) auto; gap: 10px; }
  .brand img { width: 38px; height: 38px; }
  .main-nav { width: 100%; grid-column: 1 / -1; gap: 0; justify-content: space-between; }
  .main-nav a { font-size: 12px; }
  .language-switch a { min-width: 34px; min-height: 32px; padding: 0 5px; font-size: 10px; }
  .hero { padding: 39px 0 29px; grid-template-columns: 1fr; gap: 24px; }
  h1 { margin: 12px 0 16px; font-size: clamp(38px, 11vw, 52px); }
  .intro { font-size: 16px; line-height: 1.7; }
  .actions { align-items: stretch; flex-direction: column; gap: 9px; margin-top: 20px; }
  .cta, .secondary-cta { width: 100%; }
  .example { min-height: 235px; padding: 24px 18px; }
  .example-label { top: 20px; left: 22px; font-size: 9px; }
  .hanzi { margin-top: 15px; font-size: 76px; }
  .pinyin { font-size: 21px; }
  .example-caption { margin-top: 13px; }
  .content-grid { margin: 4px 0 28px; grid-template-columns: 1fr; gap: 10px; }
  .content-card { min-height: 0; padding: 20px; }
  .content-card h2 { font-size: 22px; }
  .content-card p { font-size: 14px; }
  .related { padding: 24px 0 36px; }
  .related h2 { font-size: 25px; }
  .topic-grid { grid-template-columns: 1fr; gap: 9px; }
  .topic-card { min-height: 0; padding: 18px 44px 18px 18px; }
  .closing { padding-bottom: 38px; }
  .site-footer { min-height: 0; flex-direction: column; gap: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}