:root {
  --ink: #241c16;
  --muted: #7c6a5a;
  --paper: #f4eadc;
  --sheet: #fffaf3;
  --line: #eadfce;
  --dark: #1c1410;
  --accent: #c4622d;
  --cream: #f6efe4;
  --gold: #e7c7a4;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

a { color: inherit; }

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: #fff;
  padding: 8px 12px;
  z-index: 5;
}

.skip:focus { top: 12px; }

.top {
  background: var(--dark);
  color: var(--cream);
  padding: 28px 22px 72px;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.brand {
  margin: 0;
  letter-spacing: 0.18em;
  font-size: 14px;
  color: var(--gold);
}

.nav-links {
  display: flex;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
}

.nav-links a {
  color: #d9cbbd;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: #fff;
}

h1 {
  margin: 28px 0 12px;
  font-family: "Songti SC", "Noto Serif SC", "STSong", serif;
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 600;
  line-height: 1.25;
}

.lede {
  max-width: 38em;
  margin: 0;
  color: #d9cbbd;
  font-size: 18px;
}

.cta {
  display: inline-block;
  margin-top: 24px;
  background: var(--accent);
  color: #fffaf3;
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.cta:hover,
.cta:focus-visible {
  background: #a34e22;
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.status {
  min-height: 1.5em;
  margin: 12px 0 0;
  color: var(--gold);
}

main {
  margin-top: -40px;
  padding: 0 22px 64px;
}

.panel {
  background: var(--sheet);
  border-radius: 24px;
  padding: 28px 24px;
  margin-bottom: 18px;
  box-shadow: 0 16px 40px rgba(36, 28, 22, 0.05);
}

h2 {
  margin: 0 0 8px;
  font-size: 28px;
}

.types {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}

.type {
  background: var(--cream);
  border-radius: 16px;
  padding: 16px;
}

.type h3 {
  margin: 0 0 4px;
  font-size: 18px;
}

.type p {
  margin: 0;
  color: var(--muted);
}

.steps {
  margin: 12px 0 0;
  padding-left: 1.2em;
}

.steps li { margin: 8px 0; }

details {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

summary {
  cursor: pointer;
  font-weight: 600;
}

details p {
  margin: 8px 0 0;
  color: var(--muted);
}

.qr {
  margin: 18px 0 0;
}

.qr img {
  display: block;
  width: 220px;
  height: 220px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.qr figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  max-width: 36em;
}

.page-main {
  padding: 28px 22px 64px;
}

.page-main h1 {
  margin-top: 0;
  color: var(--ink);
  font-size: 36px;
}

.site-footer {
  padding: 12px 22px 40px;
  color: var(--muted);
  font-size: 14px;
}

.legal {
  display: flex;
  gap: 16px;
  margin-bottom: 8px;
}

.site-footer a { color: var(--accent); }

@media (max-width: 640px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .types { grid-template-columns: 1fr; }
  .nav-links { flex-wrap: wrap; }
}