:root{--ink:#202b38;--paper:#f6f8fa;--accent:#b72e18;--line:#d7dfe5}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.8 "Avenir Next","PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--accent);text-underline-offset:5px}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}header,main,footer{max-width:1100px;margin:auto;padding:28px 32px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-weight:700;color:var(--ink);text-decoration:none}.brand img{width:48px;height:48px}nav{display:flex;gap:24px;flex-wrap:wrap}nav a{color:var(--ink);font-size:15px}nav [aria-current]{color:var(--accent);font-weight:700}.eyebrow{color:var(--accent);font-size:14px;letter-spacing:.12em;font-weight:700}h1{font:600 clamp(36px,6vw,68px)/1.15 "Iowan Old Style","Songti SC",serif;letter-spacing:-.025em;margin:20px 0 28px}h2{font-size:25px;line-height:1.4;margin-top:40px}h3{font-size:19px}.lead{font-size:21px;max-width:680px}.hero{padding:52px 0 42px;max-width:850px}.actions{display:flex;gap:16px;flex-wrap:wrap;margin:28px 0}.button{background:var(--accent);color:white;text-decoration:none;padding:11px 22px;border-radius:6px}.secondary{background:white;color:var(--ink);border:1px solid var(--line)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;border-top:1px solid var(--line);padding:28px 0}.grid h2{margin:0;font-size:22px}.number{color:var(--accent);font-size:14px;font-weight:700}.document{max-width:800px;padding-bottom:56px}.document h1{font-size:clamp(36px,5vw,52px)}.note{padding:20px 24px;background:#eaf0f5;border-left:3px solid #59738a;margin:28px 0}.meta{color:#526173;font-size:14px}details{border-top:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-weight:600}footer{border-top:1px solid var(--line);font-size:14px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.skip{position:absolute;top:-100px}.skip:focus{top:8px;background:white;padding:10px}p,li,a{overflow-wrap:anywhere}@media(max-width:650px){header,main,footer{padding:22px}header{align-items:flex-start;flex-direction:column;gap:12px}nav{gap:18px}.hero{padding-top:28px}.grid{grid-template-columns:1fr;gap:20px}.lead{font-size:19px}}