:root{color-scheme:light;font:16px/1.75 system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:#17212d;background:#f4f5f7;--navy:#131e29;--orange:#ff9900;--border:#d5d9df;--muted:#596779}
*{box-sizing:border-box}body{margin:0}a{color:#066b91;text-underline-offset:4px}a:hover{text-decoration:underline}a:focus-visible{outline:3px solid #087eaa;outline-offset:4px;border-radius:2px}p{margin:0 0 16px}a,p,dd,h1,h2{overflow-wrap:anywhere}.skip-link{position:absolute;left:16px;top:-100px;background:white;padding:10px 14px;z-index:3}.skip-link:focus{top:12px}.topbar{background:var(--navy);color:white;border-bottom:3px solid var(--orange)}.header-inner{max-width:1200px;margin:auto;min-height:80px;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;gap:12px;align-items:center;color:white;text-decoration:none;font-size:19px;font-weight:650;min-width:0}.brand img{flex:none}.brand small{display:block;color:#c4cfda;font-size:12px;font-weight:400}.languages{display:flex;align-items:center;gap:4px;flex-shrink:0;font-size:13px}.languages a{padding:7px 12px;border:1px solid transparent;color:#d5dee7;text-decoration:none;border-radius:4px}.languages a[aria-current]{background:#2b3b4a;border-color:#6c7c8c;color:white}.page{max-width:1200px;margin:auto;padding:0 32px 32px}.policy-nav{display:flex;gap:24px;border-bottom:1px solid var(--border);font-size:14px;flex-wrap:wrap}.policy-nav a{padding:17px 0 13px;text-decoration:none;color:var(--muted);border-bottom:3px solid transparent}.policy-nav a[aria-current]{color:var(--navy);border-bottom-color:var(--orange);font-weight:650}.draft{background:#fff7e8;border:1px solid #eacb93;border-left:4px solid #c57a09;border-radius:5px;padding:14px 18px;margin-top:24px;font-size:14px;color:#584018}.draft strong{font-size:14px}.draft p{margin:4px 0 0;max-width:940px}.hero{padding:38px 0 28px}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:650;margin-bottom:7px}h1{font-size:36px;line-height:1.25;letter-spacing:-.025em;margin:0 0 14px;font-weight:700}.summary{max-width:800px;color:var(--muted);font-size:17px;line-height:1.65}.metadata{display:flex;gap:16px 40px;flex-wrap:wrap;margin:24px 0 0;font-size:13px}.metadata div{max-width:520px}.metadata dt{color:var(--muted);font-size:12px}.metadata dd{margin:2px 0 0;font-weight:600}.reading-layout{display:grid;grid-template-columns:224px minmax(0,1fr);gap:32px;align-items:start}.mobile-contents{display:none}.contents{position:sticky;top:24px;font-size:13px;padding:12px 0;max-height:calc(100vh - 48px);overflow:auto}.contents nav>p{font-weight:650;margin-bottom:12px}.contents ol,.mobile-contents ol{list-style:none;padding:0;margin:0}.contents a,.mobile-contents a{display:flex;gap:10px;padding:8px 4px;color:var(--muted);text-decoration:none;line-height:1.5}.contents a:hover{color:var(--navy);background:#e9edf1;border-radius:4px}.contents span,.mobile-contents span{color:#788391;font-size:11px;min-width:18px;line-height:1.8}main{min-width:0;background:white;border:1px solid var(--border);border-radius:8px;padding:32px 40px}main:focus{outline:none}article>section+section{border-top:1px solid #e6e9ed;padding-top:26px;margin-top:28px}article>section{scroll-margin-top:24px}h2{font-size:21px;line-height:1.45;margin:0 0 16px;font-weight:650}h2 span{font-size:12px;vertical-align:middle;font-weight:500;color:var(--muted);margin-right:7px}article p:last-child{margin-bottom:0}article p{color:#354252}#contact{background:#fafbfc;margin:30px -18px -10px;padding:22px 18px;border-radius:6px}.contact-address{margin-top:14px;font-weight:600;font-size:15px}footer{margin-top:38px;padding-top:24px;border-top:1px solid var(--border);font-size:12px;color:var(--muted)}footer>p{margin-bottom:12px}footer nav{display:flex;flex-wrap:wrap;gap:18px}footer a{color:#354252}.language-note{margin-top:16px;max-width:850px}
@media(min-width:1440px){main{padding:36px 48px}.reading-layout{gap:40px}}
@media(max-width:850px){.reading-layout{grid-template-columns:1fr;gap:20px}.contents{display:none}.mobile-contents{display:block;border:1px solid var(--border);border-radius:6px;background:#fafbfc;padding:12px 16px;font-size:13px}.mobile-contents summary{cursor:pointer;font-weight:650}.mobile-contents summary:focus-visible{outline:3px solid #087eaa;outline-offset:4px}.mobile-contents ol{padding-top:10px}.hero{padding-top:28px}.header-inner,.page{padding-left:24px;padding-right:24px}main{padding:28px}h1{font-size:30px}}
@media(max-width:480px){.header-inner{padding:14px 18px;gap:12px;flex-wrap:wrap}.brand{font-size:17px}.brand small{font-size:10px}.brand img{width:29px;height:29px}.languages a{padding:6px 8px}.page{padding:0 18px 24px}.policy-nav{gap:0 18px;font-size:12px}.policy-nav a{padding:13px 0 10px}.draft{padding:12px 14px;margin-top:18px;font-size:13px}.hero{padding:26px 0 22px}h1{font-size:28px}.summary{font-size:15px}.metadata{gap:14px 24px}.metadata div:first-child{flex-basis:100%}.mobile-contents a{padding:7px 0}main{padding:22px 20px;border-radius:6px}article p{font-size:15px}h2{font-size:19px}#contact{margin-left:-8px;margin-right:-8px;padding:18px 12px}}
@media print{body{background:white;color:black}.topbar,.policy-nav,.languages,.contents,.mobile-contents,.skip-link,footer nav{display:none}.page{max-width:none;padding:0}.hero{padding:0 0 20px}.reading-layout{display:block}main{border:0;padding:0}article>section{break-inside:auto}h2{break-after:avoid}a{color:inherit}.draft{background:none;border:2px solid black}footer{margin-top:20px}.metadata{gap:24px}}