/* Yuan Impex — site styles
   Palette: container steel (ink), concrete (paper), brand crimson, floor-lane yellow (route line only).
   Type: Geologica (display) + Onest (text) + JetBrains Mono (figures). CJK falls back to system faces. */

:root {
  --ink: #1b222b;
  --ink-2: #2b3541;
  --paper: #f2f3f4;
  --white: #ffffff;
  --crimson: #e41a41;
  --crimson-d: #b80f2f;
  --lane: #f4b400;
  --steel: #586470;
  --rule: #cdd2d7;
  --rule-d: #3a4552;
  --f-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;
  --f-display: 'Geologica', 'Onest', system-ui, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --f-text: 'Onest', system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --wrap: 1240px;
  --gut: clamp(16px, 4vw, 40px);
  --sec: clamp(56px, 8vw, 112px);
  --slant: -12deg;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font: 400 1.0625rem/1.6 var(--f-text);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 600; line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 .5em; text-wrap: balance; }
h1 { font-size: clamp(1.75rem, 3.7vw, 3.05rem); font-weight: 700; }
h2 { font-size: clamp(1.4rem, 2.6vw, 2.1rem); }
h3 { font-size: 1.1rem; letter-spacing: -0.005em; }
:lang(zh) h1, :lang(zh) h2, :lang(zh) h3 { letter-spacing: 0; font-weight: 700; }

:focus-visible { outline: 3px solid var(--lane); outline-offset: 3px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 10px 16px; z-index: 100; }
.skip:focus { left: 8px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }
.sec { padding-block: var(--sec); }
.sec--paper { background: var(--paper); }
.sec--ink { background: var(--ink); color: #e9edf0; }
.sec--ink h2, .sec--ink h3 { color: #fff; }
.sec__head { max-width: 46rem; margin-bottom: clamp(28px, 4vw, 52px); }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.25rem); color: var(--steel); max-width: 40rem; }
.sec--ink .lead { color: #aeb8c2; }

/* ---------- buttons (slanted like the logo's stroke) ---------- */
.btn {
  display: inline-block; cursor: pointer; text-decoration: none; border: 0;
  font: 600 1rem/1 var(--f-text); color: #fff; background: var(--crimson);
  padding: 1.05em 2em; transform: skewX(var(--slant));
  transition: background-color .15s ease;
}
.btn > span { display: inline-block; transform: skewX(calc(var(--slant) * -1)); }
.btn:hover { background: var(--crimson-d); }
.btn--ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }
.btn--ghost:hover { background: var(--ink); color: #fff; }
.sec--ink .btn--ghost, .btn--light { color: #fff; box-shadow: inset 0 0 0 2px #fff; background: transparent; }
.sec--ink .btn--ghost:hover, .btn--light:hover { background: #fff; color: var(--ink); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: center; }
.link { font-weight: 600; text-decoration: none; border-bottom: 2px solid var(--crimson); padding-bottom: 1px; }
.link:hover { color: var(--crimson); }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .97); border-bottom: 1px solid var(--rule); backdrop-filter: blur(6px); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 72px; }
.brand { display: block; flex: none; }
.brand img { height: 40px; width: auto; }
.nav { display: none; }
.nav ul { list-style: none; display: flex; gap: clamp(14px, 1.6vw, 26px); align-items: center; }
.nav a { text-decoration: none; font-weight: 500; font-size: .95rem; padding: 8px 0; border-bottom: 2px solid transparent; }
.nav a:hover { border-color: var(--crimson); }
.nav a[aria-current="page"] { border-color: var(--crimson); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-actions .btn { padding: .8em 1.5em; font-size: .95rem; display: none; }
.lang { display: flex; gap: 2px; font-size: .88rem; }
.lang a, .lang b { padding: 6px 8px; text-decoration: none; color: var(--steel); font-weight: 500; }
.lang b { color: var(--ink); font-weight: 700; }
.lang a:hover { color: var(--crimson); }
.nav-toggle { background: none; border: 1px solid var(--rule); width: 44px; height: 44px; display: grid; place-items: center; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 20px; height: 2px; background: var(--ink); content: ''; position: relative; }
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }
.site-header.is-open .nav { display: block; position: absolute; left: 0; right: 0; top: 100%; background: #fff; border-bottom: 1px solid var(--rule); padding: 8px var(--gut) 24px; }
.site-header.is-open .nav ul { flex-direction: column; align-items: stretch; gap: 0; }
.site-header.is-open .nav a { display: block; padding: 14px 0; border-bottom: 1px solid var(--rule); font-size: 1.05rem; }
@media (min-width: 1100px) {
  .nav { display: block; }
  .nav-toggle { display: none; }
  .header-actions .btn { display: inline-block; }
}

/* ---------- hero ---------- */
.hero { padding-block: clamp(36px, 6vw, 84px) 0; overflow: hidden; }
.hero__grid { display: grid; gap: 40px; align-items: center; }
.hero__text h1 { max-width: 15ch; }
.hero__text .lead { margin-bottom: 1.6em; color: var(--ink-2); }
.hero__note { margin-top: 1.4em; color: var(--steel); font-size: .95rem; max-width: 34rem; }
.hero__media { position: relative; aspect-ratio: 5 / 5.4; max-width: 560px; width: 100%; margin-inline: auto; }
.hero__slab { position: absolute; inset: 0 0 0 14%; clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%); background: var(--crimson); }
.hero__slab img { position: absolute; inset: 0 0 0 10px; width: calc(100% - 10px); height: 100%; object-fit: cover; clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%); }
.hero__inset { position: absolute; left: 0; bottom: 6%; width: 56%; border: 6px solid #fff; background: #fff; }
.hero__inset img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.hero__cap { position: absolute; right: 0; bottom: -2px; font-size: .8rem; color: var(--steel); }
@keyframes sweep { from { clip-path: polygon(100% 0, 100% 0, 100% 100%, 100% 100%); } to { clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%); } }
@media (prefers-reduced-motion: no-preference) {
  .hero__slab { animation: sweep .9s cubic-bezier(.2, .7, .2, 1) both; }
}
@media (min-width: 900px) {
  .hero__grid { grid-template-columns: 1.15fr .85fr; gap: 56px; }
}

.passport { list-style: none; display: grid; grid-template-columns: 1fr 1fr; margin-top: clamp(36px, 6vw, 72px); border-top: 4px solid var(--ink); }
.passport li { position: relative; padding: 20px 18px 22px 22px; }
.passport li::before { content: ''; position: absolute; left: 0; top: 18px; bottom: 18px; width: 2px; background: var(--rule); transform: skewX(var(--slant)); }
.passport b { display: block; font: 600 clamp(1.05rem, 1.6vw, 1.4rem)/1.2 var(--f-display); margin-bottom: 4px; }
.passport span { color: var(--steel); font-size: .92rem; line-height: 1.35; display: block; }
@media (min-width: 900px) { .passport { grid-template-columns: repeat(4, 1fr); } }

/* ---------- inner page heads, crumbs ---------- */
.page-hero { padding-block: clamp(36px, 5vw, 72px) clamp(28px, 4vw, 52px); background: var(--paper); border-bottom: 1px solid var(--rule); }
.page-hero h1 { max-width: 22ch; font-size: clamp(1.6rem, 3.2vw, 2.6rem); }
.page-hero .lead { margin-bottom: 0; color: var(--ink-2); }
.crumbs { font-size: .88rem; color: var(--steel); margin-bottom: 18px; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 10px; }
.crumbs li + li::before { content: '/'; margin-right: 10px; color: var(--rule); }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--crimson); }

/* ---------- ruled rows (services, facts) ---------- */
.rows { list-style: none; border-top: 2px solid var(--ink); }
.rows > li { display: grid; gap: 6px 40px; padding: 26px 0; border-bottom: 1px solid var(--rule); }
.rows h3 { margin: 0; }
.rows p { margin: 0; color: var(--ink-2); }
@media (min-width: 800px) { .rows > li { grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); } }
.sec--ink .rows { border-color: #fff; }
.sec--ink .rows > li { border-color: var(--rule-d); }
.sec--ink .rows p { color: #c9d1d8; }

/* ---------- the route (8 steps) ---------- */
.route-wrap { display: grid; gap: 40px; }
.route { list-style: none; position: relative; counter-reset: none; padding-bottom: 56px; }
.route::before { content: ''; position: absolute; left: 24px; top: 28px; bottom: 30px; width: 8px; background: repeating-linear-gradient(to bottom, var(--lane) 0 26px, transparent 26px 42px); }
.route::after { content: ''; position: absolute; left: 6px; bottom: 0; width: 44px; height: 34px; background: var(--lane); clip-path: polygon(50% 100%, 0 0, 36% 0, 36% -0, 64% 0, 100% 0); }
.route li { position: relative; padding: 0 0 30px 84px; min-height: 56px; }
.route li:last-child { padding-bottom: 8px; }
.route__n { position: absolute; left: 0; top: 0; width: 56px; height: 56px; background: var(--crimson); color: #fff; display: grid; place-items: center; transform: skewX(var(--slant)); font: 700 1.15rem var(--f-mono); }
.route__n i { font-style: normal; transform: skewX(calc(var(--slant) * -1)); }
.route h3 { margin: 0 0 4px; padding-top: 4px; }
.route p { margin: 0; color: var(--ink-2); max-width: 34rem; }
@media (min-width: 960px) {
  .route-wrap { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 72px; align-items: start; }
  .route-wrap > .sec__head { position: sticky; top: 112px; }
}

/* ---------- category rows ---------- */
.cat-list { border-top: 2px solid var(--ink); }
.cat-row { display: grid; gap: 6px 36px; padding: 26px 8px 26px 0; border-bottom: 1px solid var(--rule); text-decoration: none; position: relative; transition: padding-left .18s ease; }
.cat-row::before { content: ''; position: absolute; left: 0; top: 50%; width: 10px; height: 34px; background: var(--crimson); transform: translateY(-50%) skewX(var(--slant)); opacity: 0; transition: opacity .15s ease; }
.cat-row:hover, .cat-row:focus-visible { padding-left: 28px; }
.cat-row:hover::before, .cat-row:focus-visible::before { opacity: 1; }
.cat-row h3 { margin: 0; }
.cat-row p { margin: 0; color: var(--ink-2); }
.cat-row small { color: var(--steel); font-size: .92rem; }
@media (min-width: 900px) { .cat-row { grid-template-columns: minmax(0, .9fr) minmax(0, 1.3fr) minmax(0, .8fr); align-items: start; } }
@media (prefers-reduced-motion: reduce) { .cat-row, .cat-row::before { transition: none; } }

/* ---------- payment band ---------- */
.paybox { display: grid; gap: 44px; align-items: center; }
.flow { display: grid; gap: 22px; }
.flow__line { display: grid; grid-template-columns: auto 1fr auto 1fr auto; align-items: center; gap: 8px; font-size: .92rem; }
.flow__line--old { opacity: .55; }
.flow__node { border: 2px solid #fff; padding: 10px 14px; font-weight: 600; text-align: center; line-height: 1.2; }
.flow__line--new .flow__node:last-child { background: var(--crimson); border-color: var(--crimson); }
.flow__arrow { height: 2px; background: currentColor; position: relative; }
.flow__arrow::after { content: ''; position: absolute; right: -1px; top: -5px; border-left: 9px solid currentColor; border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.flow__line--new .flow__arrow { color: var(--lane); }
.flow__line--two { grid-template-columns: auto 1fr auto; }
.flow__cap { font-size: .9rem; color: #aeb8c2; margin: -8px 0 0; }
.sec--ink .flow__cap strong { color: #fff; }
@media (min-width: 960px) { .paybox { grid-template-columns: 1fr 1fr; gap: 72px; } }

/* ---------- cases ---------- */
.case-grid { display: grid; gap: 0; border-top: 2px solid var(--ink); }
.case { padding: 24px 0; border-bottom: 1px solid var(--rule); display: grid; gap: 4px; align-content: start; }
.case h3 { margin: 0; font-size: 1.05rem; }
.case__where { color: var(--steel); font-size: .92rem; margin: 0; }
.case p:last-child { margin: 6px 0 0; color: var(--ink-2); }
.case__tag { display: inline-flex; align-items: center; gap: 8px; font-size: .88rem; font-weight: 600; color: var(--crimson-d); margin-top: 8px; }
.case__tag::before { content: ''; width: 8px; height: 16px; background: var(--crimson); transform: skewX(var(--slant)); }
@media (min-width: 760px) { .case-grid { grid-template-columns: 1fr 1fr; column-gap: 48px; } }
@media (min-width: 1100px) { .case-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- gallery ---------- */
.gallery { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.gallery figure { margin: 0; position: relative; background: var(--ink); overflow: hidden; }
.gallery img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.gallery figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 12px 10px; font-size: .84rem; color: #fff; background: linear-gradient(to top, rgba(27, 34, 43, .82), transparent); }
.gallery .tall img { aspect-ratio: 3 / 4; }
.gallery .wide { grid-column: span 2; }
.gallery .wide img { aspect-ratio: 21 / 9; }
@media (min-width: 900px) {
  .gallery { grid-template-columns: repeat(4, 1fr); }
  .gallery .tall { grid-row: span 2; }
  .gallery .tall img { aspect-ratio: auto; }
}

/* ---------- FAQ ---------- */
.faq { border-top: 2px solid var(--ink); max-width: 52rem; }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; list-style: none; font-weight: 600; font-size: 1.08rem; padding: 20px 44px 20px 0; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ''; position: absolute; right: 8px; top: 50%; width: 14px; height: 14px; border-right: 3px solid var(--crimson); border-bottom: 3px solid var(--crimson); transform: translateY(-70%) rotate(45deg); transition: transform .2s ease; }
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq details p { margin: 0 0 22px; color: var(--ink-2); max-width: 44rem; }

/* ---------- prose (articles, legal) ---------- */
.prose { max-width: 44rem; }
.prose h2 { margin-top: 1.8em; font-size: clamp(1.25rem, 2.2vw, 1.7rem); }
.prose h3 { margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin-bottom: .45em; }
.prose a { color: var(--crimson-d); }
.prose table { border-collapse: collapse; width: 100%; margin: 1em 0 1.6em; font-size: .95rem; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.prose th { border-bottom: 2px solid var(--ink); font-weight: 600; }
.meta { color: var(--steel); font-size: .92rem; margin-bottom: 1.6em; }
.sources { font-size: .92rem; color: var(--steel); border-top: 1px solid var(--rule); margin-top: 2.4em; padding-top: 1em; }
.sources li { margin-bottom: .3em; }
.callout { border-left: 6px solid var(--crimson); background: var(--paper); padding: 18px 22px; margin: 1.6em 0; }
.callout p:last-child { margin: 0; }

/* two-column page body with sticky aside */
.cols { display: grid; gap: 48px; }
@media (min-width: 960px) { .cols { grid-template-columns: minmax(0, 1fr) 340px; gap: 72px; align-items: start; } .cols > aside { position: sticky; top: 104px; } }
.aside-box { border: 2px solid var(--ink); padding: 24px; }
.aside-box h3 { font-size: 1rem; }
.aside-box p { font-size: .95rem; color: var(--ink-2); }
.ticks { list-style: none; }
.ticks li { position: relative; padding-left: 26px; margin-bottom: .6em; }
.ticks li::before { content: ''; position: absolute; left: 4px; top: .35em; width: 8px; height: 16px; background: var(--crimson); transform: skewX(var(--slant)); }
.kb-list { list-style: none; border-top: 2px solid var(--ink); }
.kb-list a { display: block; padding: 22px 0; border-bottom: 1px solid var(--rule); text-decoration: none; }
.kb-list a:hover h3 { color: var(--crimson); }
.kb-list h3 { margin-bottom: 6px; }
.kb-list p { margin: 0; color: var(--ink-2); max-width: 46rem; }
.kb-list small { color: var(--steel); }

/* ---------- lead form ---------- */
.lead-sec { background: var(--paper); }
.lead-grid { display: grid; gap: 48px; }
@media (min-width: 960px) { .lead-grid { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 72px; align-items: start; } }
.contact-list { list-style: none; margin-top: 1.4em; }
.contact-list li { padding: 12px 0; border-bottom: 1px solid var(--rule); display: grid; gap: 2px; }
.contact-list small { color: var(--steel); }
.contact-list a { font-weight: 600; text-decoration: none; }
.contact-list a:hover { color: var(--crimson); }
.lead-form { background: #fff; padding: clamp(22px, 3vw, 40px); border-top: 6px solid var(--crimson); }
.lead-form h3 { font-size: 1.25rem; margin-bottom: .3em; }
.field { display: grid; gap: 6px; margin-bottom: 18px; }
.field--row { display: grid; gap: 18px; }
@media (min-width: 640px) { .field--row { grid-template-columns: 1fr 1fr; } }
.field label { font-weight: 600; font-size: .95rem; }
.field label small { font-weight: 400; color: var(--steel); }
.field input[type=text], .field input[type=tel], .field input[type=email], .field textarea {
  width: 100%; font: inherit; color: inherit; padding: 13px 14px; border: 1px solid #aab2ba; background: #fff; border-radius: 0;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: 3px solid var(--lane); outline-offset: 0; border-color: var(--ink); }
.field input[type=file] { font: inherit; font-size: .92rem; padding: 10px 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: .9rem; color: var(--ink-2); margin: 4px 0 20px; }
.consent input { margin-top: 4px; width: 18px; height: 18px; flex: none; accent-color: var(--crimson); }
.form-note { font-size: .88rem; color: var(--steel); margin: 14px 0 0; }
.form-msg { margin-top: 16px; padding: 14px 16px; border-left: 6px solid var(--ink); background: var(--paper); display: none; }
.form-msg.is-ok { display: block; border-color: #1d8a4b; }
.form-msg.is-err { display: block; border-color: var(--crimson); }
.lead-form.is-busy button { opacity: .6; pointer-events: none; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: #c9d1d8; padding-block: clamp(44px, 6vw, 80px) 28px; position: relative; }
.site-footer::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 6px; background: var(--crimson); }
.foot-grid { display: grid; gap: 36px; }
@media (min-width: 900px) { .foot-grid { grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 48px; } }
.site-footer h4 { color: #fff; font: 600 .98rem var(--f-text); margin-bottom: 14px; letter-spacing: 0; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer .brand img { height: 44px; margin-bottom: 16px; }
.foot-legal { border-top: 1px solid var(--rule-d); margin-top: 40px; padding-top: 20px; font-size: .88rem; color: #8f9aa5; display: flex; flex-wrap: wrap; gap: 8px 28px; justify-content: space-between; }
.site-footer address { font-style: normal; font-size: .95rem; line-height: 1.55; }

/* ---------- messenger dock ---------- */
.dock { position: fixed; z-index: 60; right: 22px; bottom: 16px; display: grid; gap: 10px; }
.dock a { min-width: 92px; height: 46px; padding: 0 14px; display: grid; place-items: center; color: #fff; text-decoration: none; font-weight: 700; font-size: .8rem; box-shadow: 0 6px 18px rgba(27, 34, 43, .28); transform: skewX(var(--slant)); }
.dock a span { transform: skewX(calc(var(--slant) * -1)); }
.dock .d-wa { background: #1f9d55; }
.dock .d-tg { background: #2a8fd0; }
.dock .d-ph { background: var(--ink); display: none; }
@media (max-width: 899px) {
  .dock { left: 0; right: 0; bottom: 0; grid-template-columns: repeat(3, 1fr); gap: 0; }
  .dock a { width: auto; min-width: 0; padding: 0; height: 52px; transform: none; box-shadow: none; font-size: .95rem; }
  .dock a span { transform: none; }
  .dock .d-ph { display: grid; }
  body { padding-bottom: 52px; }
}

/* ---------- misc ---------- */
.notfound { padding-block: clamp(64px, 12vw, 160px); }
.stack > * + * { margin-top: 1em; }
.mt-l { margin-top: clamp(28px, 4vw, 48px); }

/* long tables / links inside articles never widen the page */
.prose { overflow-wrap: anywhere; min-width: 0; }
.prose table { display: block; max-width: 100%; overflow-x: auto; }


/* ---------- technical layer: blueprint grid, mono figures, motion ---------- */
.hero { position: relative; isolation: isolate; }
.hero::before {
  content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(var(--rule) 1px, transparent 1px), linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 56px 56px; opacity: .55;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 78%); mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
}
.passport b [data-count], .passport b .num { font-family: var(--f-mono); font-weight: 700; letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.btn { position: relative; overflow: hidden; }
.btn::after { content: ''; position: absolute; top: 0; bottom: 0; left: -40%; width: 30%; background: rgba(255, 255, 255, .22); transform: skewX(0deg) translateX(-120%); pointer-events: none; }
.btn--ghost::after { background: rgba(255, 255, 255, .14); }
.site-header { transition: box-shadow .25s ease, min-height .25s ease; }
.site-header.is-stuck { box-shadow: 0 6px 24px rgba(27, 34, 43, .10); }
.site-header { view-transition-name: site-header; }
.cat-row, .case, .rows > li { transition: background-color .25s ease; }
.gallery img, .hero__slab img { transition: transform .7s cubic-bezier(.2, .7, .2, 1); }
.gallery figure { overflow: hidden; }
.gallery figure:hover img { transform: scale(1.04); }

@view-transition { navigation: auto; }
@media (prefers-reduced-motion: no-preference) {
  .btn:hover::after { animation: sheen .7s ease; }
  @keyframes sheen { to { transform: skewX(0deg) translateX(560%); } }
  @keyframes page-in { from { opacity: 0; transform: translateY(14px); } }
  @keyframes page-out { to { opacity: 0; } }
  ::view-transition-old(root) { animation: page-out .16s ease both; }
  ::view-transition-new(root) { animation: page-in .38s cubic-bezier(.2, .7, .2, 1) both; }

  .js .reveal { opacity: 0; transform: translateY(22px); }
  .js .reveal.is-in { opacity: 1; transform: none; transition: opacity .6s ease var(--d, 0s), transform .7s cubic-bezier(.2, .7, .2, 1) var(--d, 0s); }

  .route { --p: 0; }
  .route::before { clip-path: inset(0 0 calc((1 - var(--p)) * 100%) 0); }
  .route::after { opacity: calc(var(--p) * 1.2 - .2); }
  .route__n { transition: background-color .4s ease, box-shadow .4s ease; }
  .route li:not(.is-lit) .route__n { background: var(--ink); }
  .route li.is-lit .route__n { background: var(--crimson); box-shadow: 0 0 0 6px rgba(228, 26, 65, .14); }
  .hero__text h1, .hero__text .lead, .hero__text .btn-row, .hero__note { animation: page-in .8s cubic-bezier(.2, .7, .2, 1) both; }
  .hero__text .lead { animation-delay: .12s; }
  .hero__text .btn-row { animation-delay: .22s; }
  .hero__note { animation-delay: .3s; }
}
@media (prefers-reduced-motion: reduce) { @view-transition { navigation: none; } }
.passport b span[data-count] { display: inline; color: inherit; font-size: inherit; line-height: inherit; }

/* ---------- Chinese typography: no negative tracking, wider headline measure ---------- */
:lang(zh-CN) { --f-display: 'Geologica', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif; --f-text: 'Onest', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif; }
:lang(zh-CN) body { line-height: 1.75; }
:lang(zh-CN) h1, :lang(zh-CN) h2, :lang(zh-CN) h3, :lang(zh-CN) h4 { letter-spacing: 0; line-height: 1.3; font-weight: 700; }
:lang(zh-CN) .hero__text h1 { max-width: 10em; }
:lang(zh-CN) .lead, :lang(zh-CN) .prose { max-width: 36em; }
:lang(zh-CN) .lang a, :lang(zh-CN) .lang b { padding: 6px 7px; }
@media (max-width: 480px) { .brand img { height: 32px; } .site-header .wrap { gap: 10px; } .header-actions { gap: 6px; } }
.lang { flex: none; } .lang a, .lang b { white-space: nowrap; }
@media (max-width: 480px) { .lang a, .lang b { padding: 6px 5px; } .nav-toggle { flex: none; } }