:root{color-scheme:light;--paper:#f5f3ed;--ink:#25362e;--muted:#53635b;--line:#d6ddd2;--accent:#a64a28;--soft:#e7ecdf}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.8 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--accent);text-underline-offset:4px}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:6px;border-radius:3px}header,main,footer{width:min(1060px,100% - 56px);margin:auto}header{min-height:100px;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:650;text-decoration:none;color:var(--ink);white-space:nowrap}.mark{width:27px;height:27px;border:1px solid var(--ink);border-radius:50%;position:relative;display:inline-block}.mark:after{content:"";position:absolute;inset:6px;border:1px solid var(--ink);border-radius:50%}nav{display:flex;gap:28px;flex-wrap:wrap}nav a{font-size:14px;color:var(--ink);text-decoration:none}nav a[aria-current=page]{text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px}main{padding:76px 0 88px}.eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 18px}h1{font-size:clamp(34px,5vw,58px);font-weight:550;line-height:1.25;letter-spacing:-.025em;max-width:760px;margin:0 0 28px}h2{font-size:23px;font-weight:600;margin:0 0 15px}h3{font-size:18px;margin:0 0 8px}.lead{font-size:20px;color:var(--muted);max-width:690px;margin:0 0 30px}.note{font-size:14px;color:var(--muted)}.rule{height:1px;background:var(--line);border:0;margin:50px 0}.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin:54px 0 64px}.fact{border-top:2px solid var(--ink);padding-top:18px}.fact p{color:var(--muted);font-size:15px;margin:0}.number{font:13px ui-monospace,monospace;color:var(--accent);margin-bottom:24px}.contact{display:grid;grid-template-columns:1fr 1.25fr;gap:40px;padding:32px;background:var(--soft)}.contact p{margin:0 0 8px}.email{font-size:clamp(17px,2.8vw,24px);overflow-wrap:anywhere}.button{display:inline-flex;align-items:center;gap:26px;padding:10px 0;border-bottom:1px solid var(--accent);text-decoration:none;font-weight:550}.copy{max-width:760px}.copy>section{margin-top:34px}.copy p{margin:0 0 15px}.copy ul{padding-inline-start:24px}.meta{padding:16px 0;border-block:1px solid var(--line);margin-bottom:32px;color:var(--muted);font-size:14px}.meta p{margin:0}.toc{display:flex;gap:20px;flex-wrap:wrap;font-size:14px;margin:22px 0 36px}.faq details{border-top:1px solid var(--line);padding:22px 0}.faq details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-size:19px;font-weight:550;list-style-position:outside;margin-inline-start:20px}.answer{max-width:760px;padding-block-start:10px;padding-inline-start:20px;color:var(--muted)}.answer p{margin:6px 0}footer{padding:30px 0 40px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--muted)}footer p{margin:0}.draft{display:inline-block;border:1px solid var(--line);padding:3px 10px;margin-bottom:24px;font-size:12px;color:var(--muted)}
@media(max-width:640px){header,main,footer{width:calc(100% - 36px)}header{padding:22px 0;min-height:90px;align-items:flex-start;flex-direction:column;gap:14px}nav{gap:24px}main{padding:44px 0 56px}.lead{font-size:18px}.facts{grid-template-columns:1fr;gap:24px;margin:40px 0}.fact{display:grid;grid-template-columns:40px 1fr;gap:8px}.fact .number{grid-row:1/3;margin:3px 0}.fact h3{margin:0}.contact{grid-template-columns:1fr;gap:16px;padding:24px}.rule{margin:35px 0}h2{font-size:21px}summary{font-size:18px}.toc{gap:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.languages{position:relative;align-self:center;font-size:14px}.languages summary{font:inherit;margin:0;white-space:nowrap;cursor:pointer}.languages>nav{position:absolute;inset-inline-end:0;top:2em;z-index:5;display:grid;grid-template-columns:repeat(2,minmax(120px,1fr));gap:8px 20px;background:var(--paper);border:1px solid var(--line);padding:16px;box-shadow:0 12px 32px #25362e18;min-width:290px}.languages>nav a{line-height:1.8}.brand{white-space:normal}nav{align-items:center}[dir=rtl] .eyebrow{letter-spacing:normal}

.languages summary{list-style-position:inside}header{position:relative}@media(max-width:640px){.languages{position:static}.languages>nav{top:calc(100% + 4px);inset-inline:0;min-width:0;width:100%;grid-template-columns:repeat(2,minmax(0,1fr))}}