:root {
  color: #172033;
  background: #f7f9fc;
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui,
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --page-ink: #172033;
  --page-ink-soft: #40506b;
  --page-muted: #66758e;
  --page-blue: #2563eb;
  --page-blue-deep: #173b8f;
  --page-gold: #a96410;
  --page-line: #dbe3f0;
  --page-surface: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 280px;
  margin: 0;
  color: var(--page-ink);
  background:
    linear-gradient(#2563eb0a 1px, transparent 1px),
    linear-gradient(90deg, #2563eb0a 1px, transparent 1px),
    var(--page-surface);
  background-size: 48px 48px;
  line-height: 1.75;
}

a {
  color: var(--page-blue-deep);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  color: var(--page-blue);
}

a:focus-visible {
  border-radius: 3px;
  outline: 3px solid #e5a13b;
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  padding: 0.55rem 0.8rem;
  color: #ffffff;
  background: var(--page-blue-deep);
  transform: translateY(-160%);
}

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

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

.header-inner,
.page-main,
.footer-inner {
  width: min(100% - 2rem, 960px);
  margin-inline: auto;
}

.header-inner {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.65rem;
  color: var(--page-ink);
  font-size: 1.22rem;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
}

.brand img {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.65rem;
}

.brand span span {
  color: var(--page-blue);
}

.site-nav,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}

.site-nav a,
.footer-nav a {
  color: var(--page-ink-soft);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--page-blue-deep);
  text-decoration: underline;
  text-decoration-color: #e5a13b;
  text-decoration-thickness: 0.16em;
  text-underline-offset: 0.45em;
}

.page-main {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.page-hero {
  max-width: 780px;
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--page-blue-deep);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--page-ink);
  line-height: 1.25;
  letter-spacing: 0;
}

h1 {
  max-width: 18ch;
  margin-bottom: 1rem;
  font-size: 3.75rem;
}

h2 {
  margin-bottom: 0.8rem;
  font-size: 1.65rem;
}

h3 {
  margin-bottom: 0.35rem;
  font-size: 1rem;
}

p,
ul,
ol {
  margin-top: 0;
}

.lead {
  max-width: 68ch;
  margin-bottom: 0;
  color: var(--page-ink-soft);
  font-size: 1.2rem;
}

.date-line {
  margin: 1.15rem 0 0;
  color: var(--page-muted);
  font-size: 0.88rem;
}

.content-section {
  display: grid;
  grid-template-columns: minmax(10rem, 0.38fr) minmax(0, 1fr);
  gap: 1.5rem clamp(2rem, 8vw, 6rem);
  padding-block: clamp(2rem, 5vw, 3.25rem);
  border-top: 1px solid var(--page-line);
}

.section-body {
  max-width: 66ch;
}

.section-body > :last-child {
  margin-bottom: 0;
}

.fact-list {
  display: grid;
  gap: 1rem;
  padding: 0;
  list-style: none;
}

.fact-list li {
  padding-left: 1rem;
  border-left: 3px solid #b8caf0;
}

.fact-list p {
  margin-bottom: 0;
  color: var(--page-ink-soft);
}

.notice {
  padding: 1rem 1.1rem;
  border-left: 4px solid #e5a13b;
  color: var(--page-ink-soft);
  background: #fff9ed;
}

.action-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  margin-top: 0.4rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--page-blue-deep);
  border-radius: 6px;
  color: #ffffff;
  background: var(--page-blue-deep);
  font-weight: 750;
  text-decoration: none;
}

.action-link:hover {
  color: #ffffff;
  background: var(--page-blue);
}

.english-copy {
  color: var(--page-ink-soft);
}

.english-copy h2 {
  color: var(--page-blue-deep);
}

.site-footer {
  border-top: 1px solid var(--page-line);
  background: #f7f9fc;
}

.footer-inner {
  display: grid;
  gap: 1rem;
  padding-block: 2rem;
}

.footer-inner p {
  margin: 0;
  color: var(--page-muted);
  font-size: 0.85rem;
}

@media (max-width: 720px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1rem;
  }

  .content-section {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.35rem;
  }

  .lead {
    font-size: 1.05rem;
  }
}

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

@media print {
  body {
    background: #ffffff;
  }

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