:root {
  color-scheme: light;
  --ink: #172126;
  --muted: #52616b;
  --line: #dfe6e9;
  --soft: #f5f8f9;
  --accent: #087f69;
  --accent-dark: #066352;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 20px; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: 0;
  overflow-wrap: break-word;
}
a { color: var(--accent-dark); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, summary:focus-visible {
  outline: 3px solid #177fb9;
  outline-offset: 4px;
}
img { display: block; max-width: 100%; }
p { margin: 0 0 16px; }
ul, ol { padding-left: 24px; }
li + li { margin-top: 7px; }
h1, h2, h3 { line-height: 1.35; text-wrap: pretty; }
h1 { margin: 10px 0 14px; font-size: 30px; }
h2 { margin: 0 0 16px; font-size: 23px; }
h3 { margin: 0 0 10px; font-size: 17px; }
.container { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -80px; z-index: 10; padding: 8px 16px; background: #fff; }
.skip-link:focus { top: 8px; }

.promo-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: calc(10px + env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) 10px max(16px, env(safe-area-inset-left));
  color: #fff;
  text-decoration: none;
  background: linear-gradient(90deg, #0f172a, #164e63 48%, #065f46);
}
.promo-inner { display: flex; align-items: center; gap: 14px; width: min(1120px, 100%); min-width: 0; }
.promo-brand { flex: 0 0 auto; font-size: 18px; font-weight: 800; line-height: 1.3; }
.promo-copy { flex: 1; min-width: 0; color: #edf7f5; font-size: 14px; line-height: 1.45; }
.promo-action { flex: 0 0 auto; padding: 7px 12px; color: #06201a; background: #a7f3d0; border-radius: 999px; font-size: 13px; font-weight: 700; line-height: 1.2; white-space: nowrap; }

.site-header { border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 72px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; gap: 9px; color: var(--ink); font-size: 25px; font-weight: 800; line-height: 1; text-decoration: none; }
.brand img { width: 36px; height: 36px; }
.main-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px 22px; font-size: 14px; }
.main-nav a { color: var(--muted); text-decoration: none; padding-block: 5px; }
.main-nav a[aria-current="page"] { color: var(--accent-dark); font-weight: 700; box-shadow: 0 2px 0 var(--accent); }
.main-nav a:hover { color: var(--accent-dark); }

.home-intro { padding-block: 28px 24px; }
.home-intro h1 { margin-top: 0; font-size: 28px; }
.intro-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.intro-row p { max-width: 790px; margin-bottom: 0; color: var(--muted); }
.text-link { flex: 0 0 auto; font-size: 14px; font-weight: 700; }
.price-links { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 18px 0 4px; padding: 0; list-style: none; font-size: 14px; }
.price-links li + li { margin-top: 0; }
.price-links a { text-decoration: none; }
.price-links strong { margin-left: 4px; }
.source-note { margin-top: 10px; color: var(--muted); font-size: 12px; }
.home-intro .source-note { margin-top: 6px; margin-bottom: 0; }
.shop-band { background: var(--soft); border-block: 1px solid var(--line); padding-block: 20px 24px; }
.shop-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 12px; }
.shop-heading h2 { margin-bottom: 0; font-size: 18px; }
.shop-tools { display: flex; flex-wrap: wrap; gap: 10px 16px; font-size: 13px; }
.query-fallback { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 42px; padding: 8px 14px; color: #7c2d12; font-size: 14px; font-weight: 600; line-height: 1.4; text-align: center; text-decoration: none; background: #fff7ed; border-bottom: 1px solid #fed7aa; }
.query-fallback strong { color: #b83b0a; font-weight: 800; }
.query-fallback span { min-width: 0; overflow-wrap: anywhere; }
.shop-frame { display: block; width: 100%; height: 480px; height: max(400px, min(600px, 62svh)); border: 1px solid var(--line); border-top: 0; background: #fff; }
.shop-caption { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px 20px; margin-top: 10px; color: var(--muted); font-size: 12px; }
.shop-caption p { margin: 0; }

.section { padding-block: 42px; border-bottom: 1px solid var(--line); }
.section-intro { max-width: 780px; color: var(--muted); }
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 24px; }
.service-item { display: flex; flex-direction: column; align-items: flex-start; padding: 22px; border: 1px solid var(--line); border-radius: 6px; }
.service-item .service-label { margin-bottom: 14px; color: var(--accent-dark); font-size: 13px; font-weight: 700; }
.service-item p { flex: 1; color: var(--muted); font-size: 14px; }
.service-item a { font-size: 14px; font-weight: 700; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 24px; }
.step-number { margin-bottom: 10px; color: var(--accent-dark); font-size: 13px; font-weight: 700; }
.steps p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.inline-links { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 20px; }

.breadcrumb { display: flex; flex-wrap: wrap; gap: 6px 10px; margin: 0; padding: 23px 0 0; list-style: none; color: var(--muted); font-size: 13px; }
.breadcrumb li + li { margin-top: 0; }
.breadcrumb li + li::before { content: "/"; margin-right: 10px; color: #8a979e; }
.page-heading { padding-block: 18px 32px; border-bottom: 1px solid var(--line); }
.page-heading h1 { max-width: 900px; }
.page-heading .lead { max-width: 880px; color: var(--muted); font-size: 16px; }
.page-meta { color: var(--muted); font-size: 12px; }
.page-meta time { font-variant-numeric: tabular-nums; }
.page-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 8px 18px; border: 1px solid var(--accent); border-radius: 5px; color: #fff; background: var(--accent); font-size: 14px; font-weight: 700; text-decoration: none; }
.button:hover { background: var(--accent-dark); }
.button.secondary { color: var(--accent-dark); background: #fff; }
.document-layout { display: grid; grid-template-columns: minmax(0, 790px) minmax(180px, 1fr); gap: 56px; align-items: start; padding-block: 36px 48px; }
.article { min-width: 0; }
.article section + section { margin-top: 36px; padding-top: 32px; border-top: 1px solid var(--line); }
.article section > :last-child { margin-bottom: 0; }
.article h3 { margin-top: 24px; }
.article h3:first-child { margin-top: 0; }
.article p, .article li { max-width: 76ch; }
.article ul, .article ol { margin-block: 16px; }
.note { margin-block: 20px; padding: 14px 18px; border-left: 3px solid #b2cfc6; background: #f1f8f5; color: #294e44; font-size: 14px; }
.note p:last-child { margin-bottom: 0; }
.table-scroll { max-width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; }
th, td { padding: 14px 12px; vertical-align: top; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
th { background: var(--soft); font-weight: 700; }
th:first-child, td:first-child { padding-left: 10px; }
.catalog-table th:first-child { width: 62%; }
.catalog-table .price { white-space: nowrap; font-weight: 700; }
.product-condition { margin: 8px 0 0; font-size: 12px; color: var(--muted); }
.stock-unavailable { color: #a33a2e; }
.sidebar { font-size: 14px; }
.sidebar-title { margin-bottom: 12px; font-weight: 700; }
.sidebar ol { margin: 0 0 28px; padding-left: 20px; }
.sidebar a { text-decoration: none; }
.sidebar .related-links { display: grid; gap: 10px; }
.faq-item { padding-block: 20px; border-top: 1px solid var(--line); }
.faq-item:last-child { padding-bottom: 0; }
.faq-item h3 { margin: 0 0 9px; font-size: 16px; }
.faq-item p { margin: 0; color: var(--muted); }
.sources { font-size: 14px; }
.sources ul { margin: 0; }
.sources a { overflow-wrap: anywhere; }
.bottom-cta { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 26px; border-top: 1px solid var(--line); }
.bottom-cta p { max-width: 700px; margin: 0; color: var(--muted); font-size: 14px; }
.site-footer { padding-block: 30px; background: var(--soft); font-size: 13px; color: var(--muted); }
.footer-top { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; margin-bottom: 18px; }
.footer-brand { font-size: 18px; font-weight: 800; color: var(--ink); }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.site-footer p { max-width: 930px; margin-bottom: 8px; }
.copyright { font-size: 12px; }
.error-content { max-width: 700px; padding-block: 70px 100px; }
.error-code { color: var(--accent-dark); font-size: 14px; font-weight: 700; }

@media (max-width: 760px) {
  .container { width: calc(100% - 28px); }
  .header-inner { flex-wrap: wrap; gap: 12px; padding-block: 16px 12px; }
  .main-nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); width: 100%; gap: 5px 14px; font-size: 13px; }
  .main-nav a { text-align: center; }
  .brand { font-size: 24px; }
  .brand img { width: 32px; height: 32px; }
  h1 { font-size: 26px; }
  h2 { font-size: 21px; }
  .home-intro { padding-block: 24px; }
  .home-intro h1 { font-size: 25px; }
  .intro-row { align-items: flex-start; flex-direction: column; gap: 12px; }
  .intro-row p { font-size: 14px; }
  .shop-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .shop-frame { height: 450px; height: max(360px, min(520px, 56svh)); }
  .services, .steps { grid-template-columns: 1fr; }
  .services { gap: 14px; }
  .steps { gap: 24px; }
  .section { padding-block: 32px; }
  .document-layout { grid-template-columns: minmax(0, 1fr); gap: 28px; padding-block: 28px 36px; }
  .sidebar { border-top: 1px solid var(--line); padding-top: 24px; }
  .page-heading .lead { font-size: 15px; }
  .bottom-cta { align-items: flex-start; flex-direction: column; gap: 16px; }
  th, td { padding: 12px 8px; font-size: 13px; }
}

@media (max-width: 640px) {
  .promo-banner { min-height: 68px; padding: calc(8px + env(safe-area-inset-top)) 12px 8px; }
  .promo-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 5px 10px; }
  .promo-brand { font-size: 16px; }
  .promo-copy { grid-column: 1 / -1; grid-row: 2; font-size: 12px; line-height: 1.5; }
  .promo-action { grid-column: 2; grid-row: 1; justify-self: end; padding: 6px 9px; font-size: 12px; }
  .query-fallback { min-height: 48px; padding: 7px 10px; font-size: 12px; }
  .service-item { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}