:root {
  color-scheme: light;
  --ink: #10243d;
  --paper: #f2f6fb;
  --surface: #ffffff;
  --blue: #2f6fb7;
  --blue-dark: #0d2b4d;
  --cyan: #55c7dc;
  --gold: #f0b44d;
  --muted: #657487;
  --line: rgba(16, 36, 61, 0.14);
  --hero-text: #f7fbff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif; text-rendering: optimizeLegibility; }
a { color: inherit; }
.hero { min-height: 650px; position: relative; overflow: hidden; color: var(--hero-text); background: radial-gradient(circle at 78% 18%, rgba(85,199,220,.2), transparent 28%), radial-gradient(circle at 18% 88%, rgba(47,111,183,.28), transparent 32%), linear-gradient(122deg,#091d35 0%,#10345a 58%,#091c31 100%); }
.hero::after { content: ""; position: absolute; width: 560px; height: 560px; right: -150px; bottom: -300px; border: 1px solid rgba(255,255,255,.11); border-radius: 50%; box-shadow: 0 0 0 72px rgba(255,255,255,.025),0 0 0 144px rgba(255,255,255,.016); }
.topbar,.hero-content,.principles,.page-layout,.document-directory,footer { width: min(1180px,calc(100% - 48px)); margin-inline: auto; }
.topbar { height: 92px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.14); }
.brand { display: inline-flex; align-items: center; gap: 11px; color: inherit; font-size: 12px; font-weight: 760; letter-spacing: .18em; text-decoration: none; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; color: var(--cyan); font-size: 9px; letter-spacing: 0; }
.contact-link { color: rgba(247,251,255,.8); font-size: 13px; text-underline-offset: 5px; }
.hero-content { position: relative; z-index: 1; padding: 104px 0 92px; }
.eyebrow { margin: 0 0 25px; color: var(--gold); font-size: 11px; font-weight: 760; letter-spacing: .19em; }
h1 { max-width: 820px; margin: 0; font-size: clamp(50px,8vw,90px); font-weight: 630; letter-spacing: -.055em; line-height: 1.03; }
.hero-en { margin: 22px 0 48px; color: rgba(247,251,255,.52); font-size: clamp(16px,2vw,21px); }
.intro { max-width: 720px; margin: 0 0 9px; color: rgba(247,251,255,.86); font-size: 17px; line-height: 1.85; }
.intro.en { color: rgba(247,251,255,.52); font-size: 14px; line-height: 1.65; }
.effective { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 38px; color: rgba(247,251,255,.65); font-size: 12px; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(85,199,220,.14); }
.document-directory { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3,1fr); margin-top: -56px; background: var(--surface); border: 1px solid var(--line); }
.document-card { min-height: 360px; display: flex; flex-direction: column; padding: 38px 34px 32px; border-right: 1px solid var(--line); text-decoration: none; transition: transform 180ms ease,background-color 180ms ease; }
.document-card:last-child { border-right: 0; }
.document-card:hover,.document-card:focus-visible { background: #f8fbff; transform: translateY(-4px); outline: none; }
.document-number { color: var(--gold); font-size: 12px; font-weight: 730; }
.document-eyebrow { margin-top: 48px; color: var(--blue); font-size: 10px; font-weight: 760; letter-spacing: .18em; }
.document-card h2 { margin: 14px 0 20px; font-size: clamp(24px,2.8vw,32px); letter-spacing: -.035em; }
.document-card h2 span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; font-weight: 470; letter-spacing: 0; }
.document-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.document-action { margin-top: auto; padding-top: 34px; color: var(--blue); font-size: 13px; font-weight: 680; }
.principles { display: grid; grid-template-columns: repeat(3,1fr); background: var(--surface); border: 1px solid var(--line); border-top: 0; }
.principles article { min-height: 126px; display: flex; align-items: center; gap: 18px; padding: 28px 34px; border-right: 1px solid var(--line); }
.principles article:last-child { border-right: 0; }
.principle-icon { width: 38px; color: var(--blue); font-size: 27px; text-align: center; }
.principles strong { display: block; font-size: 15px; }
.principles span { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
.page-hero { min-height: 610px; }
.page-hero .hero-content { padding-top: 92px; }
.page-layout { display: grid; grid-template-columns: 220px minmax(0,800px); justify-content: space-between; gap: 76px; padding: 112px 0 126px; }
.toc { align-self: start; position: sticky; top: 32px; }
.toc > p { margin: 0 0 18px; color: var(--blue); font-size: 10px; font-weight: 760; letter-spacing: .19em; }
.toc ol { margin: 0; padding: 0; list-style: none; }
.toc li { border-top: 1px solid var(--line); }
.toc li:last-child { border-bottom: 1px solid var(--line); }
.toc a { display: flex; gap: 12px; padding: 10px 0; color: var(--muted); font-size: 12px; text-decoration: none; }
.toc a:hover,.toc a:focus-visible { color: var(--blue); outline: none; }
.toc a span { width: 20px; color: rgba(16,36,61,.35); font-variant-numeric: tabular-nums; }
.policy-section { scroll-margin-top: 30px; display: grid; grid-template-columns: 54px 1fr; gap: 22px; padding-bottom: 70px; margin-bottom: 70px; border-bottom: 1px solid var(--line); }
.policy-section:last-child { margin-bottom: 0; }
.section-number { padding-top: 5px; color: var(--gold); font-size: 12px; font-weight: 730; font-variant-numeric: tabular-nums; }
.policy-section h2 { margin: 0 0 28px; font-size: clamp(25px,3vw,34px); font-weight: 630; letter-spacing: -.035em; }
.policy-section h2 span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; font-weight: 470; letter-spacing: 0; }
.policy-section h3 { margin: 26px 0 8px; font-size: 16px; }
.policy-section p,.policy-section li { font-size: 15px; line-height: 1.95; }
.policy-section p { margin: 0; }
.policy-section p + p { margin-top: 16px; }
.policy-section .english { color: var(--muted); font-size: 13px; line-height: 1.82; }
.policy-section a { color: var(--blue); text-underline-offset: 4px; }
.notice { margin-bottom: 30px; padding: 22px 24px; background: var(--surface); border-left: 4px solid var(--cyan); box-shadow: 0 8px 30px rgba(22,50,82,.07); font-size: 15px; line-height: 1.8; }
.email-card { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; margin-top: 28px; padding: 22px 24px; color: var(--hero-text); background: var(--blue-dark); text-decoration: none; }
.email-card span { color: rgba(247,251,255,.57); font-size: 11px; letter-spacing: .06em; }
.email-card strong { font-size: 13px; font-weight: 590; }
footer { min-height: 160px; display: flex; align-items: center; justify-content: space-between; gap: 30px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.footer-brand { color: var(--ink); }
footer p { margin: 0; }
footer a { text-underline-offset: 4px; }
@media (max-width:820px) {
  .hero { min-height: 620px; }
  .document-directory { grid-template-columns: 1fr; margin-top: -32px; }
  .document-card { min-height: 270px; border-right: 0; border-bottom: 1px solid var(--line); }
  .document-card:last-child { border-bottom: 0; }
  .document-eyebrow { margin-top: 28px; }
  .principles { grid-template-columns: 1fr; }
  .principles article { min-height: 98px; border-right: 0; border-bottom: 1px solid var(--line); }
  .principles article:last-child { border-bottom: 0; }
  .page-layout { grid-template-columns: 1fr; gap: 0; padding-top: 78px; }
  .toc { display: none; }
}
@media (max-width:540px) {
  .topbar,.hero-content,.principles,.page-layout,.document-directory,footer { width: min(100% - 32px,1180px); }
  .topbar { height: 76px; }
  .hero { min-height: 590px; }
  .hero-content { padding: 72px 0 68px; }
  h1 { font-size: 47px; }
  .hero-en { margin-bottom: 40px; }
  .intro { font-size: 15px; }
  .contact-link { font-size: 12px; }
  .document-card { padding: 30px 24px 26px; }
  .principles article { padding-inline: 24px; }
  .page-layout { padding: 64px 0 80px; }
  .policy-section { grid-template-columns: 1fr; gap: 13px; padding-bottom: 52px; margin-bottom: 52px; }
  .section-number { padding: 0; }
  .email-card { display: block; overflow-wrap: anywhere; }
  .email-card strong { display: block; margin-top: 8px; }
  footer { min-height: 190px; flex-direction: column; justify-content: center; align-items: flex-start; }
}
@media (prefers-reduced-motion:reduce) { html { scroll-behavior: auto; } .document-card { transition: none; } }