:root {
  color-scheme: light;
  --ink: #173c45;
  --body: #334b50;
  --muted: #526b70;
  --sea: #125761;
  --sea-dark: #0e454e;
  --line: #d8e4e0;
  --sand: #f8f6ef;
  --paper: #fffefa;
  --coral: #a45c48;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--sand); color: var(--body); font: 400 17px/1.85 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
a { color: var(--sea); text-underline-offset: .18em; }
a:hover { color: var(--sea-dark); }
a:focus-visible { outline: 3px solid var(--coral); outline-offset: 4px; border-radius: 2px; }
.skip-link { position: absolute; z-index: 10; top: -100px; left: 16px; padding: 8px 14px; background: var(--paper); color: var(--ink); }
.skip-link:focus { top: 12px; }
.shell { width: min(100% - 48px, 1080px); margin-inline: auto; }
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.header-inner, .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.header-inner { min-height: 76px; }
.brand { color: var(--ink); font-size: 19px; font-weight: 750; letter-spacing: .03em; text-decoration: none; white-space: nowrap; }
.brand:hover { color: var(--sea); }
.brand-mark { color: var(--coral); margin-left: 6px; }
nav { display: flex; gap: 24px; flex-wrap: wrap; }
nav a { font-size: 15px; font-weight: 600; text-decoration: none; }
nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--coral); text-decoration-thickness: 2px; text-underline-offset: 7px; }
.hero { padding-block: 104px 80px; }
.eyebrow { color: var(--coral); font-size: 14px; font-weight: 750; letter-spacing: .14em; }
h1, h2 { color: var(--ink); line-height: 1.3; }
h1 { margin: 18px 0 20px; font-size: clamp(38px, 6vw, 70px); font-weight: 740; letter-spacing: -.035em; }
.hero-copy { max-width: 670px; margin: 0; font-size: clamp(17px, 2vw, 20px); line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.button { display: inline-flex; align-items: center; min-height: 48px; padding: 9px 20px; border: 2px solid var(--sea); border-radius: 9px; font-size: 16px; font-weight: 700; text-decoration: none; }
.button-primary { background: var(--sea); color: white; }
.button-primary:hover { background: var(--sea-dark); border-color: var(--sea-dark); color: white; }
.button-secondary { background: transparent; color: var(--sea); }
.button-secondary:hover { background: #e7f0ed; }
.quick-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; padding-bottom: 64px; }
.link-card { padding: 30px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); }
.card-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: #e5f0ed; color: var(--sea); font-weight: 700; }
.link-card h2 { margin: 24px 0 8px; font-size: 23px; }
.link-card p { margin: 0 0 16px; }
.link-card a { font-weight: 700; }
.contact-panel { display: flex; justify-content: space-between; align-items: center; gap: 32px; margin-bottom: 82px; padding: 32px 36px; border-radius: 14px; background: #e7eeea; }
.contact-panel h2 { margin: 0 0 8px; font-size: 25px; }
.contact-panel p { max-width: 600px; margin: 0; }
.contact-email { flex: none; font-size: 17px; font-weight: 700; overflow-wrap: anywhere; }
.site-footer { padding-block: 28px; border-top: 1px solid var(--line); background: var(--paper); }
.site-footer p { margin: 0; color: var(--muted); font-size: 14px; }
.site-footer nav { gap: 18px; }
.site-footer nav a { font-size: 14px; }
.document-layout { max-width: 800px; padding-block: 46px 90px; }
.back-link { font-size: 15px; font-weight: 650; text-decoration: none; }
.document-heading { padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.document-heading .eyebrow { margin: 48px 0 0; }
.document-heading h1 { margin: 10px 0 16px; font-size: clamp(36px, 5vw, 54px); }
.document-lead { margin: 0; font-size: 19px; }
.updated { color: var(--muted); font-size: 14px; margin: 20px 0 0; }
.contents { display: flex; align-items: center; gap: 10px 18px; padding-block: 22px; border-bottom: 1px solid var(--line); }
.contents span { color: var(--muted); font-size: 14px; font-weight: 700; }
.contents a { font-size: 14px; }
.document-body section { padding-top: 38px; scroll-margin-top: 24px; }
.document-body h2 { margin: 0 0 12px; font-size: 24px; }
.document-body p { margin: 0 0 18px; }
.document-body p:last-child { margin-bottom: 0; }
.contact-line { font-weight: 700; overflow-wrap: anywhere; }
@media (max-width: 650px) {
  body { font-size: 16px; }
  .shell { width: min(100% - 36px, 1080px); }
  .header-inner { align-items: flex-start; flex-direction: column; justify-content: center; gap: 8px; min-height: 96px; padding-block: 12px; }
  .hero { padding-block: 68px 52px; }
  .quick-links { grid-template-columns: 1fr; padding-bottom: 42px; }
  .link-card { padding: 24px; }
  .contact-panel { align-items: flex-start; flex-direction: column; gap: 18px; padding: 26px; margin-bottom: 52px; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 10px; }
  .document-layout { padding-block: 32px 62px; }
  .document-heading .eyebrow { margin-top: 34px; }
  .contents { align-items: flex-start; flex-direction: column; }
  .document-body section { padding-top: 32px; }
  .document-body h2 { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }