:root{--ink:#173447;--teal:#087e86;--paper:#f6f5ef;--line:#dbe4e5;--muted:#526873}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;color:var(--ink);background:var(--paper);font:17px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--teal);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid #e08046;outline-offset:5px}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.15;letter-spacing:-.035em}h1{font-size:clamp(52px,8vw,96px);max-width:850px;margin-bottom:25px}h2{font-size:clamp(30px,4vw,44px);margin-bottom:20px}h3{font-size:21px;margin-bottom:12px}p{margin-bottom:18px}.wrap{width:min(1180px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:20px;top:-100px;background:white;padding:10px;z-index:5}.skip:focus{top:10px}.masthead{border-bottom:1px solid var(--line);background:#fff}.masthead .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0}.brand{text-decoration:none;color:var(--ink);font-size:16px;font-weight:750}.brand small{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.13em;color:var(--muted)}.masthead nav{display:flex;gap:22px;font-size:14px}.eyebrow{text-transform:uppercase;font-size:12px;letter-spacing:.16em;font-weight:750;color:var(--teal);margin-bottom:22px}.hero{padding:72px 0 48px}.hero .lead{max-width:760px;font-size:22px;line-height:1.55}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 16px}.button{display:inline-block;padding:13px 22px;border:1px solid var(--ink);border-radius:6px;text-decoration:none;font-size:15px;font-weight:700;background:var(--ink);color:white}.button.secondary{background:transparent;color:var(--ink)}.meta,.caption{font-size:13px;color:var(--muted)}.quick{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--line);margin:30px 0 12px}.quick div{padding:24px;background:#fff}.quick strong{display:block;font-size:21px;margin-bottom:8px}.quick p{font-size:15px;margin:0}.layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:50px;align-items:start;padding:28px 0 72px}.contents{position:sticky;top:24px;font-size:14px}.contents strong{font-size:11px;letter-spacing:.12em;text-transform:uppercase}.contents ol{padding:0;list-style:none;counter-reset:contents}.contents li{counter-increment:contents;margin:0 0 5px}.contents li a{display:flex;gap:11px;padding:6px 0;text-decoration:none;color:var(--ink)}.contents li a:before{content:counter(contents,decimal-leading-zero);color:var(--teal);font-size:12px;padding-top:2px}.chapter{padding:38px 0;border-top:1px solid #bfcfd1}.chapter:first-child{padding-top:0;border:0}.chapter .number{font-size:12px;letter-spacing:.14em;color:var(--teal);font-weight:750;margin-bottom:12px}.chapter .intro{font-size:19px}.steps{padding-left:24px}.steps li{padding:0 0 14px 7px}.steps li::marker{font-weight:750;color:var(--teal)}.note{background:#e8f1f0;border-left:3px solid var(--teal);padding:22px 24px;border-radius:0 7px 7px 0;margin:24px 0}.note p:last-child{margin-bottom:0}.note.warm{background:#faf0e5;border-color:#c76b38}.screens{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:26px 0}.screens.single{grid-template-columns:1fr}.screens figure{margin:0;background:white;border:1px solid var(--line);border-radius:9px;padding:18px;min-width:0}.screens figure>a{display:flex;justify-content:center;align-items:center;background:#f8fafa;min-height:160px}.screens img{object-fit:contain;max-height:410px}.screens.single img{max-height:340px}.screens figcaption{font-size:12px;line-height:1.6;color:var(--muted);padding-top:12px}.cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px}.card p:last-child{margin:0}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}td,th{text-align:left;border-bottom:1px solid var(--line);padding:14px 12px;vertical-align:top}th{color:var(--teal);font-size:13px}td[lang]{font-size:21px}tbody tr:nth-child(odd){background:#fff}.emergency{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;background:var(--ink);color:white;padding:24px;border-radius:9px;margin:24px 0}.emergency strong{display:block;font-size:32px;line-height:1.25}.emergency span{font-size:13px}.checklist{list-style:none;padding:0}.checklist li{padding:8px 0 8px 30px;position:relative}.checklist li:before{content:'✓';position:absolute;left:0;color:var(--teal);font-weight:800}.sources{font-size:13px;line-height:1.65}.sources li{margin-bottom:14px;padding-left:5px}.sources small{display:block;color:var(--muted)}details{margin-top:24px}summary{cursor:pointer;font-weight:700;padding:12px 0}footer{border-top:1px solid var(--line);padding:30px 0 45px;font-size:13px;background:white}footer .wrap{display:flex;justify-content:space-between;gap:20px}footer p{margin:0;max-width:640px}footer nav{display:flex;gap:18px;align-items:flex-start}
@media(max-width:850px){.layout{grid-template-columns:1fr;gap:20px}.contents{position:static;border-bottom:1px solid var(--line);padding-bottom:16px}.contents ol{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.hero{padding-top:48px}.quick div{padding:18px}.quick strong{font-size:18px}}
@media(max-width:520px){.wrap{width:calc(100% - 36px)}.masthead .wrap{align-items:flex-start}.masthead nav{font-size:12px;gap:12px}.brand{max-width:175px;font-size:14px}.brand small{font-size:9px}.hero{padding:36px 0 20px}.hero .lead{font-size:19px}.quick{grid-template-columns:1fr}.quick div{padding:17px 20px}.quick strong{margin-bottom:4px}.quick p{font-size:14px}.chapter{padding:30px 0}.cards{grid-template-columns:1fr}.screens{gap:10px}.screens figure{padding:9px}.screens figcaption{font-size:11px}.screens img{max-height:310px}.note{padding:18px}.emergency{padding:20px 16px;gap:10px}.emergency strong{font-size:28px}.emergency span{font-size:11px}footer .wrap{display:block}footer nav{margin-top:18px}td,th{padding:12px 7px}td[lang]{font-size:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{body{background:white;font-size:11pt}.masthead nav,.contents,.actions,.chat-widget{display:none}.wrap{width:100%}.hero{padding:15px 0}.layout{display:block}.chapter{break-inside:auto}h2,h3{break-after:avoid}.screens,.note,.cards,.emergency{break-inside:avoid}footer{padding-bottom:0}.screens img{max-height:270px}.hero h1{font-size:42pt}}
