/* 正文 120%（默认 16px 时为 19.2px）。
   不在 html 上设置字号，以便系统文字缩放生效。 */

@font-face {
  font-family: "Noto Sans SC";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/noto-sans-sc-400.woff2") format("woff2");
}

@font-face {
  font-family: "Noto Sans SC";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/noto-sans-sc-600.woff2") format("woff2");
}

:root {
  color-scheme: light;
  --bg: #f4f1ea;
  --surface: #fffcf8;
  --ink: #1c1916;
  --muted: #3e3832;
  --pine: #0e3d34;
  --pine-soft: #e5f0ec;
  --signal: #9d2c18;
  --line: #e3dbd0;
  --focus: #9d2c18;
  --shadow: 0 18px 40px rgb(14 61 52 / 8%);
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #121411;
    --surface: #1c211e;
    --ink: #f6f3ec;
    --muted: #ddd4c6;
    --pine: #d5ebe4;
    --pine-soft: #24312d;
    --signal: #ffb4a8;
    --line: #3a403c;
    --focus: #ffd7a8;
    --shadow: none;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-padding-block-start: 1rem;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  a:any-link { transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 120%;
  font-weight: 400;
  line-height: 1.55;
}

h1,
h2,
h3,
.brand,
.amount {
  font-family: var(--sans);
  font-weight: 600;
  line-height: 1.25;
  text-wrap: balance;
}

h1 { font-size: 1.75em; margin: 0 0 0.45em; }
h2 { font-size: 1.45em; margin: 0 0 0.7em; }
h3 { font-size: 1.12em; margin: 0 0 0.35em; }

p { margin: 0 0 0.8rem; }

a:any-link { color: var(--pine); text-underline-offset: 0.18em; }
a:visited { color: var(--pine); }

:where(a, button):focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

::selection { background: var(--pine-soft); color: var(--ink); }

.skip-link:where(:not(:focus)) {
  position: absolute !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  border: 0 !important;
  white-space: nowrap !important;
}

.skip-link:focus {
  position: absolute;
  z-index: 5;
  inset: 0.6rem auto auto 0.6rem;
  background: var(--pine);
  color: var(--bg);
  padding: 0.45em 0.8em;
}

.shell {
  width: min(100% - 2rem, 72rem);
  margin-inline: auto;
  padding-block: 1.1rem 3rem;
  container: shell / inline-size;
}

.site-header {
  display: grid;
  gap: 0.9rem;
  margin-block-end: 1.5rem;
}

.brand-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem 1.2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0;
  font-size: 1.25em;
  color: var(--pine);
}

.seal { width: 2.2rem; height: 2.2rem; flex: none; }

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

.site-nav ul,
.site-footer nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
}

.site-nav a,
.site-footer nav a {
  display: inline-block;
  min-block-size: 2.5rem;
  padding: 0.35em 0.8em;
  border-radius: 999px;
  color: var(--ink);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  background: var(--pine);
  color: var(--bg);
}

.hero {
  display: grid;
  gap: 2rem;
  align-items: center;
  margin-block-end: 3.5rem;
}

@container shell (min-width: 52rem) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
  }

  h1 { font-size: 2.15em; }
}

.lede {
  font-size: 1.08em;
  max-inline-size: 22em;
  color: var(--ink);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  gap: 0.7rem;
  margin: 1.3rem 0 0;
}

a.action:any-link,
a.action:visited {
  display: inline-flex;
  align-items: center;
  min-block-size: 3rem;
  padding: 0.55em 1.15em;
  border-radius: 999px;
  background: var(--pine);
  color: var(--bg);
  text-decoration: none;
}

a.action:focus-visible { outline-color: var(--signal); }

a.action-quiet:any-link,
a.action-quiet:visited {
  background: transparent;
  color: var(--pine);
  border: 2px solid var(--pine);
}

.hero-figure {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
  padding: 0.8rem 0.8rem 1rem;
}

.schematic {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 640 / 520;
}

.hero-figure figcaption {
  margin: 0.35rem 0.4rem 0;
  color: var(--muted);
}

.explain {
  margin: 0 0 1.15rem;
  padding: 0.75rem 0.75rem 0.95rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.15rem;
}

.explain img,
.explain-art {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 640 / 300;
}

.explain figcaption {
  margin: 0.65rem 0.15rem 0;
}

.badge {
  display: inline-block;
  margin-inline-end: 0.45rem;
  color: var(--signal);
  font-weight: 600;
}

.plate {
  display: block;
  margin: 0 0 0.75rem;
  border: 2px solid var(--pine);
  border-radius: 0.45rem;
  background: var(--pine-soft);
}

.plate-9 { inline-size: 2.4rem; block-size: 2.4rem; }
.plate-18 { inline-size: 4.8rem; block-size: 2.4rem; }
.plate-27 { inline-size: 4.8rem; block-size: 3.6rem; }
.plate-36 { inline-size: 4.8rem; block-size: 4.8rem; }

.section {
  margin-block: 3.4rem 0;
}

.section h2 { max-inline-size: 16em; }

.journey,
.benefits,
.catalog-cards,
.offers,
.steps,
.plans {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@container shell (min-width: 42rem) {
  .journey,
  .benefits { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .catalog-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .offers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@container shell (min-width: 58rem) {
  .offers { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.journey li,
.benefits li,
.steps li,
.offers article,
.offers li,
.plans > li,
.card,
.parties article {
  min-inline-size: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  padding: 1.15rem 1.15rem 1.2rem;
}

.journey {
  counter-reset: step;
}

.journey li::before {
  content: counter(step);
  counter-increment: step;
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  margin-block-end: 0.7rem;
  border-radius: 50%;
  background: var(--pine);
  color: var(--bg);
  font-weight: 600;
}

.steps li strong {
  display: block;
  margin-block-end: 0.35rem;
}

.card-link {
  display: block;
  color: inherit;
  text-decoration: none;
  border-radius: 1.15rem;
}

.card-link:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.card svg,
.icon {
  display: block;
  width: 3.2rem;
  height: 3.2rem;
  margin-block-end: 0.8rem;
}

.offers article,
.offers li {
  container: price / inline-size;
}

.area {
  margin: 0 0 0.35rem;
  color: var(--signal);
  font-weight: 600;
}

.pair {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.7rem;
  margin: 0;
}

.amount {
  font-size: 2em;
  color: var(--pine);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.usd {
  font-variant-numeric: tabular-nums;
  background: var(--pine-soft);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.2em 0.55em;
  overflow-wrap: anywhere;
}

.per { margin: 0.55rem 0 0; color: var(--muted); }

.price-note {
  margin: 1rem 0 0;
  color: var(--muted);
}

.stamp {
  display: inline-block;
  max-inline-size: 100%;
  margin: 0 0 0.8rem;
  padding: 0.15em 0.6em;
  border-radius: 999px;
  background: var(--pine-soft);
  color: var(--pine);
  font-weight: 600;
}

.prose { max-inline-size: 38em; }

.prose h2 { margin-block-start: 2rem; }

.catalog { padding-inline-start: 1.2em; }
.catalog li { margin-block-end: 0.45rem; }

.plan {
  display: grid;
  gap: 0.45rem;
  min-block-size: 8rem;
  margin-block-end: 0.8rem;
  padding: 0.6rem;
  border-radius: 0.8rem;
  background: var(--pine-soft);
}

.plan span {
  display: flex;
  align-items: end;
  min-block-size: 2.6rem;
  padding: 0.4rem;
  border-radius: 0.45rem;
  background: var(--surface);
}

.plan-9 { grid-template-columns: 0.8fr 1.3fr; }
.plan-9 span:nth-child(2) { grid-row: span 2; }
.plan-18 { grid-template-columns: 1.5fr 0.9fr; }
.plan-18 span:first-child { grid-row: span 2; }
.plan-27 { grid-template-columns: 1.2fr 0.8fr; }
.plan-27 span:first-child { grid-row: span 2; }
.plan-36 { grid-template-columns: 1.35fr 0.85fr; }
.plan-36 span:first-child { grid-row: span 2; }

.parties,
.relocate {
  display: grid;
  gap: 1rem;
}

@container shell (min-width: 42rem) {
  .parties,
  .relocate { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
}

@container shell (min-width: 58rem) {
  .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.relocate { grid-template-columns: 1fr; }
@container shell (min-width: 46rem) {
  .relocate { grid-template-columns: 1fr 0.8fr 1fr; }
}

.bridge {
  margin: 0;
  padding: 1.15rem;
  border: 1px dashed var(--line);
  border-radius: 1.15rem;
  background: var(--surface);
}

.site-footer {
  margin-block-start: 4rem;
  padding-block-start: 1.6rem;
  border-block-start: 1px solid var(--line);
}

.site-footer p { max-inline-size: 40em; color: var(--muted); }

.empty-booth {
  min-block-size: 8rem;
  border-radius: 1.2rem;
  background: var(--pine-soft);
  margin-block-end: 1.2rem;
}

.band {
  background: transparent;
  color: inherit;
  padding: 0;
  margin: 0;
}

.band :where(h2, p, .area, .per) { color: inherit; }
.band a:any-link,
.band a:visited { color: var(--pine); }

@media (forced-colors: active) {
  :root {
    --bg: Canvas;
    --surface: Canvas;
    --ink: CanvasText;
    --muted: CanvasText;
    --pine: LinkText;
    --signal: LinkText;
    --line: CanvasText;
    --focus: Highlight;
  }
  .journey li::before,
  a.action:any-link { forced-color-adjust: auto; border: 1px solid CanvasText; }
  :where(a, button):focus-visible { outline: 3px solid Highlight; }
}

@media print {
  .skip-link, .site-header, .site-footer, .actions { display: none !important; }
  body { background: #fff; color: #000; }
}