:root{color-scheme:light;--ink:#182e3b;--muted:#536875;--accent:#006f72;--line:#d6e2e5;--paper:#fff;--wash:#f2f7f8;--tint:#e3f1ef;--serif:Georgia,'Songti SC','Noto Serif CJK SC',serif;--sans:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.8 var(--sans);-webkit-font-smoothing:antialiased}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:2px}.wrap{max-width:1184px;margin:0 auto;padding:0 48px}.skip{position:absolute;left:16px;top:-80px;background:white;padding:8px 16px;z-index:10}.skip:focus{top:8px}.topbar{border-bottom:1px solid var(--line)}.topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:88px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:22px;font-weight:650;letter-spacing:-.7px}.brand svg{width:34px;height:34px}.brand small{border-left:1px solid var(--line);padding-left:14px;margin-left:2px;font-size:13px;font-weight:400;letter-spacing:.2px;color:var(--muted)}.languages{display:flex;align-items:center;gap:4px;font-size:13px}.languages a{padding:7px 12px;text-decoration:none;border-radius:5px}.languages [aria-current]{background:var(--tint);color:var(--ink);font-weight:600}.hero{padding:62px 0 42px}.eyebrow{color:var(--accent);font-size:12px;letter-spacing:2px;font-weight:700;text-transform:uppercase;margin:0 0 14px}h1{font:400 clamp(42px,6vw,72px)/1.12 var(--serif);letter-spacing:-2px;margin:0 0 23px}.intro{font-size:19px;line-height:1.65;max-width:710px;color:var(--muted);margin:0 0 26px}.meta{font-size:13px;color:var(--muted);display:flex;gap:12px;align-items:center;flex-wrap:wrap}.meta span+span:before{content:'·';margin-right:12px}.summary{border-top:3px solid var(--accent);background:var(--wash);display:grid;grid-template-columns:1fr 1fr 1fr;margin-bottom:58px}.summary div{padding:23px 26px}.summary div+div{border-left:1px solid var(--line)}.summary strong{font-size:14px;display:block;margin-bottom:6px}.summary p{font-size:14px;color:var(--muted);margin:0}.layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:70px;padding-bottom:60px}.toc{align-self:start;position:sticky;top:28px;font-size:13px}.toc-title{font-size:11px;text-transform:uppercase;letter-spacing:1.6px;color:var(--muted);font-weight:650;margin:0 0 15px}.toc a{display:block;border-left:2px solid var(--line);padding:6px 0 6px 16px;text-decoration:none;color:var(--muted);line-height:1.65}.toc a:hover{border-left-color:var(--accent);color:var(--accent)}.toc .contact-nav{margin-top:24px;border:0;padding-left:0;color:var(--accent)}article{min-width:0}section{margin-bottom:36px;padding-bottom:30px;border-bottom:1px solid var(--line);scroll-margin-top:25px}section:last-child{margin-bottom:0}h2{font-size:24px;line-height:1.35;font-weight:600;letter-spacing:-.4px;margin:0 0 18px}p{margin:0 0 15px}p:last-child{margin-bottom:0}li{padding-left:3px;margin-bottom:10px}ul{padding-left:21px;margin:12px 0 18px}.legal-name{overflow-wrap:anywhere}.note{border-left:3px solid var(--accent);padding:14px 20px;background:var(--wash);font-size:14px;color:var(--muted);margin-top:20px}.data-list{margin:20px 0 0}.data-list div{padding:16px 0;border-top:1px solid var(--line)}dt{font-weight:600;font-size:15px}dd{margin:4px 0 0;color:var(--muted);font-size:15px}.contact-box{background:var(--wash);border:1px solid var(--line);border-radius:8px;padding:26px;margin:24px 0}.contact-box a{font-size:clamp(19px,3vw,25px);overflow-wrap:anywhere}.contact-box p{font-size:14px;color:var(--muted);margin:10px 0 0}.footer{background:var(--wash);border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:12px}.footer-inner{display:flex;justify-content:space-between;gap:24px}.footer p{margin:0;max-width:650px}.footer-links{display:flex;gap:20px;white-space:nowrap}.error{padding:100px 0;max-width:720px}.error h1{font-size:54px}html[lang="zh-CN"] h1{font-size:58px;letter-spacing:1px}html[lang="zh-CN"] h2{font-size:23px}
@media(max-width:900px){.wrap{padding:0 28px}.layout{grid-template-columns:170px minmax(0,1fr);gap:36px}.summary div{padding:20px}.hero{padding-top:44px}}
@media(max-width:640px){.wrap{padding:0 22px}.topbar-inner{min-height:74px;gap:8px}.brand{font-size:20px;gap:8px}.brand small{display:none}.languages a{padding:6px 9px}.hero{padding:38px 0 28px}h1{font-size:48px;letter-spacing:-1.5px}html[lang="zh-CN"] h1{font-size:43px}.intro{font-size:17px}.summary{grid-template-columns:1fr;margin-bottom:30px}.summary div{padding:15px 20px}.summary div+div{border-left:0;border-top:1px solid var(--line)}.summary strong{margin-bottom:2px}.layout{display:block;padding-bottom:36px}.toc{position:static;display:flex;gap:7px;flex-wrap:wrap;margin-bottom:34px;padding-bottom:25px;border-bottom:1px solid var(--line)}.toc-title{width:100%;margin-bottom:3px}.toc a{border:1px solid var(--line);border-radius:4px;padding:5px 9px;font-size:12px}.toc .contact-nav{margin:0;padding:5px 9px;border:1px solid var(--line)}h2{font-size:22px}section{padding-bottom:24px;margin-bottom:28px}.footer-inner{display:block}.footer-links{margin-top:18px}.contact-box{padding:22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.topbar,.toc,.footer-links,.skip{display:none}.wrap{max-width:none;padding:0}.hero{padding:0 0 20px}h1{font-size:38px}.summary{margin-bottom:25px}.layout{display:block}section{break-inside:avoid}.footer{background:none}.contact-box{background:none}a{color:inherit}}