:root {
  color-scheme: light;
  --brand: oklch(52% 0.105 183);
  --brand-dark: oklch(35% 0.075 183);
  --brand-soft: oklch(93.5% 0.035 183);
  --page: oklch(97.2% 0.006 183);
  --surface: oklch(99.4% 0.002 183);
  --surface-low: oklch(96% 0.007 183);
  --line: oklch(88% 0.01 183);
  --ink: oklch(20% 0.012 183);
  --muted: oklch(40% 0.014 183);
  --quiet: oklch(50% 0.018 183);
  --focus: oklch(58% 0.115 183);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 0%, var(--brand-soft), transparent 30rem),
    var(--page);
  font-size: 16px;
  line-height: 1.75;
}

a {
  color: var(--brand-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--brand);
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  inset: 0 auto auto 1rem;
  padding: 0.65rem 0.9rem;
  color: var(--surface);
  background: var(--brand-dark);
  border-radius: 0 0 8px 8px;
  transform: translateY(-120%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.site-footer {
  width: min(100% - 2rem, 920px);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 88px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  font-weight: 720;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.site-nav a {
  padding: 0.45rem 0.7rem;
  color: var(--muted);
  border-radius: 8px;
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--brand-dark);
  background: var(--brand-soft);
  font-weight: 650;
}

main {
  width: min(100% - 2rem, 920px);
  margin: 1rem auto 4rem;
  padding: clamp(1.5rem, 4vw, 4rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 24px 70px color-mix(in oklab, var(--brand-dark) 8%, transparent);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--brand-dark);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.28;
  text-wrap: balance;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3.5rem);
  letter-spacing: -0.04em;
}

h2 {
  margin: 2.7rem 0 0.8rem;
  padding-top: 0.25rem;
  font-size: clamp(1.28rem, 3vw, 1.65rem);
  letter-spacing: -0.02em;
}

h3 {
  margin: 1.6rem 0 0.45rem;
  font-size: 1.05rem;
}

p,
li {
  max-width: 75ch;
}

ul,
ol {
  padding-left: 1.35rem;
}

li + li {
  margin-top: 0.45rem;
}

.lead {
  margin: 1.1rem 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.2rem;
  margin: 1.4rem 0 0;
  color: var(--quiet);
  font-size: 0.92rem;
}

.notice {
  margin: 2rem 0;
  padding: 1rem 1.15rem;
  color: var(--brand-dark);
  background: var(--brand-soft);
  border-left: 4px solid var(--brand);
  border-radius: 8px 14px 14px 8px;
}

.data-table {
  width: 100%;
  margin: 1.2rem 0;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.data-table th,
.data-table td {
  padding: 0.8rem;
  text-align: left;
  vertical-align: top;
  border: 1px solid var(--line);
}

.data-table th {
  background: var(--surface-low);
  font-weight: 700;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem 1.5rem;
  padding: 0 0 3rem;
  color: var(--quiet);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1rem;
  }

  main {
    margin-top: 0.5rem;
    border-radius: 16px;
  }

  .data-table {
    display: block;
    overflow-x: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

@media print {
  body {
    background: white;
  }

  .site-header,
  .site-footer,
  .skip-link {
    display: none;
  }

  main {
    width: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
  }
}