:root {
  color-scheme: light dark;
  --ink: #13232c;
  --muted: #5f727d;
  --paper: #f4fafc;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --line: #c7e7ee;
  --accent: #007f9e;
  --accent-strong: #00667f;
  --accent-soft: #dff7fb;
  --warm: #fff3cf;
  --warm-ink: #6e5110;
  --shadow: 0 22px 60px rgba(25, 91, 110, 0.11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(0, 185, 220, 0.14), transparent 34rem),
    radial-gradient(circle at 92% 12%, rgba(151, 128, 255, 0.10), transparent 28rem),
    var(--paper);
  font: 16px/1.72 -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", sans-serif;
}
a { color: var(--accent-strong); }
a:hover { color: var(--accent); }
.site-header, .page-shell, .site-footer { width: min(100% - 40px, 920px); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 0 10px; }
.brand { color: var(--ink); font-size: 19px; font-weight: 850; letter-spacing: -0.02em; text-decoration: none; }
.site-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.site-nav a { color: var(--muted); font-size: 14px; font-weight: 700; text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--accent-strong); }
.page-shell { padding: 42px 0 72px; }
.hero, .panel, .policy-table, .step, .source-row { border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); backdrop-filter: blur(14px); }
.hero { position: relative; overflow: hidden; padding: clamp(30px, 7vw, 66px); border-radius: 30px; }
.hero::after { content: ""; position: absolute; width: 220px; height: 220px; right: -72px; bottom: -102px; border: 34px solid rgba(0, 185, 220, 0.12); border-radius: 50%; }
.eyebrow { margin: 0 0 12px; color: var(--accent-strong); font-size: 13px; font-weight: 850; letter-spacing: 0.12em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.22; letter-spacing: -0.025em; }
h1 { max-width: 760px; margin: 0 0 18px; font-size: clamp(38px, 7vw, 66px); }
h2 { margin: 42px 0 14px; font-size: clamp(25px, 4vw, 32px); }
h3 { margin: 24px 0 8px; font-size: 19px; }
p, ul { margin-top: 0; }
.lede { max-width: 680px; margin-bottom: 24px; color: var(--muted); font-size: 18px; }
.meta, .muted { color: var(--muted); }
.meta { font-size: 14px; }
.pill { display: inline-flex; align-items: center; gap: 7px; padding: 7px 11px; border-radius: 999px; color: var(--accent-strong); background: var(--accent-soft); font-size: 13px; font-weight: 800; }
.notice { margin: 24px 0; padding: 16px 18px; border: 1px solid #f0d993; border-radius: 15px; color: var(--warm-ink); background: var(--warm); }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 26px 0; }
.panel { padding: 23px; border-radius: 20px; }
.panel h2, .panel h3 { margin-top: 0; }
.panel-link { color: inherit; text-decoration: none; transition: transform 160ms ease, border-color 160ms ease; }
.panel-link:hover { transform: translateY(-2px); border-color: #73cfdf; color: inherit; }
.quick-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; margin: 28px 0; border: 1px solid var(--line); border-radius: 18px; background: var(--line); }
.fact { padding: 18px; background: var(--surface-strong); }
.fact strong { display: block; margin-bottom: 4px; font-size: 18px; }
.fact span { color: var(--muted); font-size: 14px; }
.article { max-width: 820px; }
.article > h1 { font-size: clamp(36px, 6vw, 52px); }
.article li { margin-bottom: 6px; }
.callout { padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface-strong); }
.callout p:last-child { margin-bottom: 0; }
.policy-table { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; border-radius: 18px; }
.policy-table th, .policy-table td { padding: 14px; text-align: left; vertical-align: top; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.policy-table th:last-child, .policy-table td:last-child { border-right: 0; }
.policy-table tr:last-child td { border-bottom: 0; }
.policy-table th { background: var(--accent-soft); }
.step { margin: 12px 0; padding: 17px 18px; border-radius: 15px; box-shadow: none; }
code { color: var(--accent-strong); font: inherit; font-weight: 750; }
.source-list { display: grid; gap: 12px; }
.source-row { display: grid; grid-template-columns: minmax(140px, 210px) 1fr; gap: 14px; padding: 18px; border-radius: 16px; box-shadow: none; }
.source-row strong { color: var(--muted); }
.source-row a { font-weight: 800; text-decoration: none; }
.contact-box { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 17px; border-radius: 13px; color: #fff; background: var(--accent-strong); font-weight: 800; text-decoration: none; }
.button:hover { color: #fff; background: var(--accent); }
.site-footer { padding: 0 0 38px; color: var(--muted); font-size: 13px; }
.site-footer p { border-top: 1px solid var(--line); padding-top: 20px; }
@media (max-width: 700px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .page-shell { padding-top: 28px; }
  .card-grid, .quick-facts { grid-template-columns: 1fr; }
  .source-row { grid-template-columns: 1fr; gap: 2px; }
  .contact-box { align-items: flex-start; flex-direction: column; }
  .policy-table, .policy-table tbody, .policy-table tr, .policy-table td { display: block; }
  .policy-table thead { display: none; }
  .policy-table tr:not(:last-child) td:last-child { border-bottom: 1px solid var(--line); }
  .policy-table td { border-right: 0; }
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #edfaff; --muted: #a5bac4; --paper: #06151c; --surface: rgba(11, 34, 44, 0.88); --surface-strong: #0b222c; --line: #254c59; --accent: #61d8ea; --accent-strong: #79deed; --accent-soft: #103943; --warm: #4d3f12; --warm-ink: #ffe69c; --shadow: 0 22px 60px rgba(0, 0, 0, 0.22); }
  body { background: radial-gradient(circle at 12% 0%, rgba(0, 185, 220, 0.14), transparent 34rem), var(--paper); }
  .button, .button:hover { color: #06212a; }
}