:root {
  color-scheme: light;
  --ink: #1f2735;
  --muted: #667184;
  --line: #dce2ea;
  --soft: #f6f8fb;
  --brand: #25137f;
  --brand-2: #00a8a8;
  --brand-soft: #f2f0fb;
  --warning: #835700;
  --warning-bg: #fff7dc;
  --radius: 18px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans", sans-serif;
}

* { box-sizing: border-box; }

html { background: #eef2f6; color: var(--ink); }

body { margin: 0; min-width: 320px; background: #eef2f6; line-height: 1.55; }

a { color: var(--brand); text-underline-offset: 0.16em; overflow-wrap: anywhere; }

.site-header { background: #fff; border-bottom: 1px solid var(--line); }

.header-inner,
.page-shell,
.footer-inner { width: min(1040px, calc(100% - 32px)); margin: 0 auto; }

.header-inner { min-height: 94px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: inline-flex; align-items: center; text-decoration: none; }

.brand img { display: block; width: min(310px, 58vw); height: auto; }

.language-switch { display: inline-flex; padding: 4px; gap: 3px; background: var(--soft); border: 1px solid var(--line); border-radius: 999px; }

.language-button { border: 0; background: transparent; color: var(--muted); border-radius: 999px; padding: 8px 12px; font: inherit; font-size: 0.84rem; font-weight: 700; cursor: pointer; }

.language-button.is-active { background: var(--brand); color: #fff; }

.page-shell { padding: 28px 0 56px; }

.draft-notice { padding: 12px 16px; color: var(--warning); background: var(--warning-bg); border: 1px solid #ead48d; border-radius: 12px; text-align: center; font-size: 0.9rem; }

.page-heading { padding: 45px 4px 28px; }

.eyebrow { margin: 0 0 8px; color: var(--brand-2); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }

h1 { margin: 0; color: var(--brand); font-size: clamp(2rem, 5vw, 3.35rem); line-height: 1.08; letter-spacing: -0.035em; }

.intro { max-width: 720px; margin: 14px 0 0; color: var(--muted); font-size: 1.05rem; }

.information-panel { overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 16px 42px rgba(31, 39, 53, 0.07); }

.content-card { margin-top: 24px; padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 16px 42px rgba(31, 39, 53, 0.07); }

.section-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }

.section-heading h2 { margin: 0; color: var(--brand); font-size: 1.35rem; }

.section-kicker { margin: 0 0 4px; color: var(--brand-2); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }

.section-intro { margin: 18px 0; color: var(--muted); }

.status-badge, .document-status { display: inline-flex; flex: 0 0 auto; color: var(--warning); background: var(--warning-bg); border: 1px solid #ead48d; border-radius: 999px; padding: 6px 10px; font-size: 0.74rem; font-weight: 800; }
.status-published { color: #17603a; background: #eaf7ef; border-color: #a8d7ba; }

/* Document categories are informational; only files approved for public release may enable downloads. */
.document-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px; background: var(--soft); border: 1px solid var(--line); border-radius: 12px; }

.document-copy { min-width: 0; }
.document-copy strong { display: block; }
.document-copy small { display: block; margin-top: 4px; color: var(--muted); }

.document-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.download-button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 13px; border: 1px solid #cec9e4; border-radius: 8px; background: var(--brand-soft); color: var(--brand); font: inherit; font-size: 0.82rem; font-weight: 700; text-align: left; text-decoration: none; }
.download-button[href]:hover { border-color: var(--brand); background: #e9e5fa; }
.download-button[href]:focus-visible { outline: 3px solid rgba(37, 19, 127, 0.2); outline-offset: 2px; }
.download-button:disabled { cursor: not-allowed; }
.download-button svg { width: 18px; height: 18px; flex: 0 0 auto; }

.document-icons { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 18px 0 0; padding: 0; list-style: none; }
.document-icon-item { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 15px 8px; text-align: center; }
.document-icon { width: 30px; height: 30px; margin-bottom: 3px; color: var(--brand); }
.document-icon-item strong { font-size: 0.82rem; }
.document-icon-item small { color: var(--muted); font-size: 0.74rem; }

.safety-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 20px; }

.safety-grid article { padding: 18px; background: var(--soft); border: 1px solid var(--line); border-radius: 12px; }

.safety-grid h3 { margin: 0 0 9px; color: var(--brand); font-size: 1rem; }

.safety-grid p, .safety-grid ul { margin: 0; color: #465165; font-size: 0.9rem; }

.safety-grid ul { padding-left: 1.15rem; }

.safety-grid li + li { margin-top: 5px; }

.information-list { margin: 0; }

.information-row { display: grid; grid-template-columns: minmax(220px, 34%) 1fr; border-bottom: 1px solid var(--line); }

.information-row:last-child { border-bottom: 0; }

.information-row dt,
.information-row dd { margin: 0; padding: 17px 20px; }

.information-row dt { background: var(--soft); color: #3f4a5b; font-size: 0.88rem; font-weight: 700; }

.information-row dd { align-self: center; overflow-wrap: anywhere; }

.featured-row dt { background: var(--brand-soft); color: var(--brand); }

.featured-row dd { color: var(--brand); font-size: 1.08rem; }

.review-row { box-shadow: inset 4px 0 0 #b75050; }

.provisional-row { box-shadow: inset 4px 0 0 #d5a230; }

.provisional-row dt { background: var(--warning-bg); color: var(--warning); }

.provisional-note { display: block; margin-top: 8px; color: var(--warning); font-size: 0.78rem; font-weight: 700; }

.subtle { display: block; margin-top: 3px; color: var(--muted); font-size: 0.82rem; }

.brand-mark { display: block; width: 86px; height: auto; }

.collection-row dd { display: grid; grid-template-columns: 90px 1fr; align-items: center; gap: 18px; }

.collection-symbol { display: block; width: 82px; height: auto; }

.collection-copy { max-width: 620px; }

.qr-explanation { margin-top: 24px; padding: 25px 28px; color: #fff; background: linear-gradient(135deg, var(--brand), #3547a6 65%, #087f93); border-radius: var(--radius); box-shadow: 0 16px 42px rgba(37, 19, 127, 0.18); }

.qr-explanation h2 { margin: 0 0 10px; font-size: 1.15rem; }

.qr-explanation p { margin: 0; max-width: 820px; color: rgba(255,255,255,0.88); }

.page-footer { background: #fff; border-top: 1px solid var(--line); }

.footer-inner { padding: 26px 0 32px; display: grid; grid-template-columns: 1fr auto; gap: 7px 30px; align-items: start; font-size: 0.84rem; }

.footer-inner p { margin: 0; }

.company-details { max-width: 720px; }

.company-details p + p, .footer-links p + p { margin-top: 4px; }

.footer-links { text-align: right; }

.revision { grid-column: 1 / -1; color: var(--muted); }

.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

[data-language="en"] .lang-zh,
[data-language="zh"] .lang-en { display: none !important; }

@media (max-width: 720px) {
  .header-inner { min-height: 78px; gap: 10px; }
  .brand img { width: min(220px, 58vw); }
  .page-shell { padding-top: 18px; }
  .page-heading { padding: 34px 2px 22px; }
  .information-row { grid-template-columns: 1fr; }
  .information-row dt { padding: 13px 16px 7px; background: #fff; color: var(--muted); font-size: 0.75rem; letter-spacing: 0.035em; text-transform: uppercase; }
  .information-row dd { padding: 0 16px 16px; }
  .featured-row dt,
  .review-row dt,
  .provisional-row dt { background: inherit; }
  .collection-row dd { grid-template-columns: 65px 1fr; }
  .collection-symbol { width: 58px; }
  .qr-explanation { padding: 22px 20px; }
  .content-card { padding: 21px 17px; }
  .section-heading, .document-row { align-items: flex-start; }
  .document-row { flex-direction: column; gap: 14px; }
  .document-icons { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .safety-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { text-align: left; }
  .revision { grid-column: auto; }
}

@media print {
  html, body { background: #fff; }
  .site-header { border-bottom: 1px solid #bbb; }
  .language-switch, .draft-notice { display: none; }
  .page-shell { width: 100%; padding: 16px 0; }
  .information-panel, .qr-explanation { box-shadow: none; }
  .information-row { break-inside: avoid; }
  .page-footer { border-top: 1px solid #bbb; }
}