:root{--ink:#203335;--muted:#637575;--accent:#087a70;--line:#dfe8e6;--soft:#eff6f4}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:#fff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.85}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible,summary:focus-visible{outline:3px solid #23a99a;outline-offset:4px}.skip{position:fixed;top:-100px;left:20px;background:var(--ink);color:white;padding:10px;z-index:10}.skip:focus{top:10px}.topbar{height:80px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 42px;background:rgba(255,255,255,.97);position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:12px}.brand img{border-radius:10px}.brand strong{font-size:19px;letter-spacing:.03em}.brand>span{border-left:1px solid var(--line);margin-left:7px;padding-left:20px;color:var(--muted);font-size:14px}.top-contact{font-size:13px;border:1px solid var(--line);padding:7px 15px;border-radius:5px}.layout{display:grid;grid-template-columns:240px minmax(0,810px) 190px;max-width:1440px;margin:auto;min-height:75vh}.sidebar{border-right:1px solid var(--line);padding:36px 20px;background:#f8faf9}.desktop-nav{position:sticky;top:111px}.eyebrow{font-size:10px;letter-spacing:.15em;color:var(--accent);font-weight:700;margin:0 0 20px}.sidebar nav{display:flex;flex-direction:column;gap:5px}.sidebar nav a{padding:8px 13px;border-radius:5px;font-size:13px;color:#576968}.sidebar nav a[aria-current=page]{color:var(--accent);background:#e1efea;font-weight:700}.sidebar nav a:hover{background:#edf3f1}.side-note{border-top:1px solid var(--line);margin:28px 12px 0;padding-top:25px;font-size:12px;color:var(--accent)}.side-note p{font-size:11px;color:var(--muted);margin:5px 0}.status-dot{display:inline-block;height:6px;width:6px;border-radius:50%;background:#1f9a7d;margin-right:6px}.mobile-nav{display:none}main{padding:33px 48px 45px;min-width:0}.breadcrumb{font-size:11px;color:#82908e;margin-bottom:36px}.breadcrumb span{margin:0 10px;color:#b5c1be}.intro{border-bottom:1px solid var(--line);padding-bottom:30px;margin-bottom:34px}.intro .eyebrow{margin-bottom:13px}h1{font-size:34px;line-height:1.45;letter-spacing:-.025em;margin:0 0 18px;font-weight:750}.lead{font-size:15px;color:var(--muted);max-width:650px;margin:0}section{margin:0 0 39px;scroll-margin-top:100px}h2{font-size:21px;line-height:1.5;margin:0 0 18px}h3{font-size:16px;line-height:1.6;margin:0 0 7px}p{margin:0 0 17px}section>p,section>ul{color:#5c6e6c}section>ul{padding-left:22px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-heading span{font-size:11px;color:var(--muted);white-space:nowrap}.cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.card{border:1px solid var(--line);border-radius:7px;padding:21px 20px;transition:border-color .2s,background .2s}.card:hover{border-color:#78b9a9;background:#f7fbf9}.card-number{font-size:10px;letter-spacing:.08em;color:#718581}.card h3{font-size:16px;margin:12px 0 8px}.card b{float:right;color:var(--accent);font-weight:400}.card p{font-size:12px;color:var(--muted);line-height:1.8;margin:0}.callout{border-left:3px solid #379d85;background:var(--soft);padding:18px 21px;margin:22px 0;border-radius:0 5px 5px 0}.callout strong{font-size:13px;color:#286758}.callout p{font-size:13px;color:#55756c;margin:6px 0 0}.caution{border-color:#b89b5f;background:#faf7ee}.caution strong{color:#816b39}.caution p{color:#7f745c}.steps{list-style:none;counter-reset:step;padding:0}.steps li{position:relative;padding:0 0 23px 47px;counter-increment:step}.steps li:before{content:counter(step);position:absolute;left:0;top:0;width:29px;height:29px;display:grid;place-items:center;border:1px solid #c9e1d9;border-radius:50%;background:#edf6f2;color:var(--accent);font-size:12px;font-weight:700}.steps li:not(:last-child):after{content:"";position:absolute;left:14px;top:36px;bottom:8px;width:1px;background:var(--line)}.steps p{color:var(--muted);font-size:14px;margin:0}details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-size:14px;font-weight:600}details p{font-size:13px;margin:12px 0 0;color:var(--muted)}.text-link{color:var(--accent);font-size:14px;font-weight:600}.toc{padding:46px 18px 0 10px;align-self:start;position:sticky;top:80px;font-size:11px}.toc p{font-weight:700;margin-bottom:14px}.toc a{display:block;color:#70817c;border-left:1px solid var(--line);padding:8px 0 8px 15px}.toc a:hover{border-color:var(--accent);color:var(--accent)}.toc>span{display:block;margin-top:28px;color:#9aa6a2;font-size:10px}.download{border:1px solid #cfe2db;border-radius:7px;padding:23px;background:#f7faf8;margin-top:42px}.download strong{font-size:16px}.download p{font-size:12px;color:var(--muted);margin:5px 0 17px}.downloads{display:flex;gap:9px}.downloads a{flex:1;background:white;border:1px solid #d5e3dd;border-radius:4px;padding:9px 12px;font-size:12px;color:var(--accent);font-weight:600}.downloads a:first-child{background:var(--accent);color:#fff;border-color:var(--accent)}.downloads span{float:right}.article-end{font-size:11px;color:#899791;border-top:1px solid var(--line);margin-top:30px;padding-top:22px}.drama-strip{display:grid;grid-template-columns:1fr 1fr;gap:16px}.drama-strip figure{margin:0;display:flex;align-items:center;gap:15px;background:#f7f9f8;border:1px solid var(--line);padding:12px;border-radius:6px}.drama-strip img{width:62px;height:83px;object-fit:cover;border-radius:3px}.drama-strip strong{font-size:14px;display:block}.drama-strip span{display:block;font-size:10px;color:var(--muted);margin-top:4px}.contact-box{display:flex;flex-direction:column;gap:14px;color:var(--accent);font-size:14px;overflow-wrap:anywhere}footer{border-top:1px solid var(--line);padding:35px 42px;display:flex;gap:65px;background:#f8faf9;font-size:11px;color:var(--muted)}footer strong{font-size:13px;color:var(--ink)}footer p{margin:7px 0 0}footer nav{display:flex;gap:12px 22px;flex-wrap:wrap;max-width:850px;align-content:start}footer nav a{white-space:nowrap}@media(min-width:1450px){.layout{border-left:1px solid var(--line);border-right:1px solid var(--line)}}@media(max-width:1150px){.layout{grid-template-columns:215px minmax(0,1fr)}.toc{display:none}main{padding:32px 38px}.topbar{padding:0 28px}}@media(max-width:720px){.topbar{height:68px;padding:0 18px}.brand{gap:8px}.brand strong{font-size:16px}.brand img{width:30px;height:30px}.brand>span{font-size:11px;margin-left:3px;padding-left:11px}.top-contact{font-size:11px;padding:5px 8px}.layout{display:block}.sidebar{padding:0 21px;border-right:0;border-bottom:1px solid var(--line)}.desktop-nav{display:none}.mobile-nav{display:block;padding:12px 0;border:0}.mobile-nav summary{font-size:12px;color:var(--accent)}.mobile-nav nav{padding-top:15px;display:grid;grid-template-columns:1fr 1fr}.sidebar nav a{font-size:12px;padding:7px}main{padding:24px 22px 35px}.breadcrumb{margin-bottom:28px}.intro{padding-bottom:26px;margin-bottom:28px}h1{font-size:29px}.lead{font-size:14px}.cards{gap:10px}.card{padding:16px 13px}.card h3{font-size:14px}.card p{font-size:11px}.card-number{font-size:9px}h2{font-size:19px}.section-heading span{font-size:10px}.download{padding:18px}.downloads{gap:6px}.downloads a{font-size:11px;padding:8px}.drama-strip{grid-template-columns:1fr}.drama-strip img{width:51px;height:68px}footer{padding:28px 22px;flex-direction:column;gap:22px}footer nav{gap:10px 18px}.steps li{padding-left:40px}section{margin-bottom:30px}.callout{padding:16px}.eyebrow{font-size:9px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card{transition:none}}