:root{--p:#0F4C5C;--a:#2BA59A;--bg:#fff;--soft:#f2f7f7;--tx:#1d2b30;--mu:#5b6b70;--bd:#dbe5e7}
:root{color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;color:var(--tx);background:var(--bg)}
a{color:var(--p)}.w{max-width:1040px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--bd);position:sticky;top:0;background:var(--bg);z-index:5}
header .w{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:20px;color:var(--p);text-decoration:none}
.brand svg{width:34px;height:34px}.brand b{color:var(--a);font-weight:600}
nav a{margin-left:22px;text-decoration:none;color:var(--tx);font-size:15px}nav a:hover{color:var(--p)}
.hero{padding:84px 0 64px;background:var(--soft)}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.15;margin:0 0 18px;color:var(--p);max-width:760px}
.hero p{font-size:19px;color:var(--mu);max-width:640px;margin:0 0 28px}
.btn{display:inline-block;background:var(--p);color:var(--bg);padding:13px 24px;border-radius:8px;text-decoration:none;font-weight:600}
.btn.o{background:none;color:var(--p);border:2px solid var(--p);margin-left:10px}
section{padding:64px 0}section h2{font-size:30px;margin:0 0 8px;color:var(--p)}
.lead{color:var(--mu);margin:0 0 32px;max-width:640px}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{border:1px solid var(--bd);border-radius:12px;padding:24px;background:var(--bg)}
.card h3{margin:0 0 8px;font-size:19px;color:var(--p)}.card p{margin:0 0 12px;color:var(--mu);font-size:16px}
.card ul{margin:0;padding-left:18px;font-size:15px}.card li{margin:4px 0}
.soft{background:var(--soft)}
.facts{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.facts div{padding-left:14px;border-left:3px solid var(--a)}.facts strong{display:block;color:var(--p)}
.facts span{color:var(--mu);font-size:15px}
.steps{counter-reset:s;display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));padding:0;list-style:none}
.steps li{counter-increment:s;padding:18px;border:1px solid var(--bd);border-radius:12px;background:var(--bg)}
.steps li:before{content:counter(s);display:inline-block;width:28px;height:28px;border-radius:50%;background:#1B7A82;color:#fff;text-align:center;line-height:28px;font-weight:600;margin-bottom:8px}
footer{border-top:1px solid var(--bd);padding:28px 0;color:var(--mu);font-size:14px}
footer .w{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between}footer a{margin-left:16px}
@media(max-width:640px){nav a:not(.k){display:none}.btn.o{margin:10px 0 0}}
.doc{padding:48px 0;max-width:720px}.doc h1{color:var(--p)}.warn{background:#fff4d6;color:#5a4300;border-radius:8px;padding:12px 16px}
.hero-in{display:grid;gap:32px;grid-template-columns:1.2fr 1fr;align-items:center}
.fig{margin:0;aspect-ratio:4/3;border-radius:16px;background:var(--bg);border:2px dashed var(--bd)}
.tl{margin-left:18px;font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:22px 0 0}
.chips li{font-size:14px;padding:4px 12px;border:1px solid var(--bd);border-radius:999px;background:var(--bg);color:var(--mu)}
nav a.k{background:var(--p);color:#fff;padding:8px 16px;border-radius:8px;font-weight:600}nav a.k:hover{color:#fff;opacity:.9}
@media(max-width:760px){.hero-in{grid-template-columns:1fr}.fig{aspect-ratio:16/9}.tl{display:block;margin:14px 0 0}}
.note{font-size:14px;color:var(--mu);margin:-18px 0 28px;max-width:640px}
.foot{margin:28px 0 0;color:var(--mu)}
.gl{margin-top:28px;border:1px solid var(--bd);border-radius:10px;padding:12px 18px;background:var(--bg)}
.gl summary{cursor:pointer;font-weight:600;color:var(--p)}.gl dt{font-weight:600;margin-top:12px}.gl dd{margin:2px 0 0;color:var(--mu);font-size:16px}
.steps.one{grid-template-columns:1fr}
.note2{font-size:14px;color:var(--mu);margin:20px 0 0;max-width:640px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--p);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--p);color:#fff;padding:8px 14px;border-radius:6px;z-index:10}.skip:focus{left:8px}
.fig.has{border:0;background:none;aspect-ratio:auto}.fig img{display:block;width:100%;height:auto}
.ci{display:block;width:100%;height:auto;border-radius:8px;margin:0 0 14px}
.gl-img{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-top:20px}
.gl-img figure{margin:0}.gl-img img{display:block;width:100%;height:auto;border-radius:8px}.gl-img figcaption{font-size:14px;color:var(--mu);margin-top:6px}