:root{--ink:#202b3d;--muted:#465163;--line:#d9dee5;--blue:#102e73;--red:#ca2111}*{box-sizing:border-box}.brand-wordmark{display:inline-block;color:var(--blue);font:800 clamp(24px,3vw,34px)/1 Arial,"Microsoft YaHei",sans-serif;letter-spacing:.12em;white-space:nowrap}.site-logo{display:block;width:190px;max-width:42vw;height:auto;aspect-ratio:1378/373;object-fit:contain;background:#fff}body{margin:0;background:#f7f8fa;color:var(--ink);font:16px/1.75 Arial,"Microsoft YaHei",sans-serif}a{color:var(--blue);text-underline-offset:4px}a:focus-visible{outline:3px solid var(--red);outline-offset:5px}header,main,footer{max-width:1200px;margin:auto;padding:28px 40px}header{display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid var(--line);background:#fff}header img{width:210px;height:auto;display:block}nav{display:flex;gap:24px;flex-wrap:wrap}nav a{text-decoration:none}main{padding-top:20px}.crumb{font-size:13px;color:var(--muted)}section{padding:40px 0;border-bottom:1px solid var(--line)}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:center}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--red)}h1{font-size:clamp(30px,4.2vw,54px);line-height:1.15;letter-spacing:-1.5px;margin:18px 0 24px}h2{font-size:28px;line-height:1.35;margin:0 0 24px}h3{font-size:20px;line-height:1.5}.intro{font-size:18px;color:var(--muted)}figure{margin:0;background:#edf0f4;border-radius:6px;padding:24px}figure img{width:100%;height:auto}figcaption{font-size:12px;color:var(--muted)}.button{display:inline-block;background:var(--red);color:white;text-decoration:none;padding:13px 20px;border-radius:4px;margin:12px 0}dl{margin:0}dl>div{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:20px 0;border-top:1px solid var(--line)}dt{font-weight:bold}dd{margin:0;color:var(--muted)}.contact{background:#eaf0f8;padding:32px;border-radius:6px;margin-top:36px}.contact p{max-width:850px}.related{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-left:22px}.scope{border-left:3px solid var(--red);padding-left:18px;color:var(--muted)}footer{font-size:13px}.skip{position:absolute;left:12px;top:-100px;background:white;padding:10px;z-index:5}.skip:focus{top:12px}@media(max-width:700px){header,main,footer{padding:20px}header{flex-wrap:wrap;gap:18px}header img{width:180px}nav{gap:18px;font-size:14px}.hero{grid-template-columns:1fr;gap:20px}section{padding:28px 0}dl>div{grid-template-columns:1fr;gap:8px}.related{grid-template-columns:1fr}.contact{padding:22px}h1{letter-spacing:-.6px}.intro{font-size:16px}}