:root{--ink:#eef1f3;--muted:#b8c0c7;--bg:#17191c;--panel:#22262b;--line:#3d444b;--rust:#d26d4e;--rust-soft:#3a2823;--sand:#f1d6c5;--safe:#82a79c;--max:1180px;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 80% 0,#2d2422 0,transparent 34rem),var(--bg);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-wrap:anywhere}
a{color:var(--sand);text-decoration-thickness:.08em;text-underline-offset:.2em}a:hover,a:focus-visible{color:#fff}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:1rem;top:1rem;z-index:9;background:#fff;color:#111;padding:.7rem}
.site-header{max-width:var(--max);margin:auto;min-height:74px;padding:1rem clamp(1rem,4vw,2rem);display:flex;align-items:center;justify-content:space-between;gap:1.5rem;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;font-weight:800;color:#fff;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:2.35rem;height:2.35rem;border:1px solid var(--rust);border-radius:50%;color:var(--rust)}
.site-header ul{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:.4rem 1rem;margin:0;padding:0;list-style:none}.site-header nav a{font-size:.92rem;color:var(--muted)}.nav-toggle{display:none;background:var(--rust);border:0;color:#111;padding:.55rem .8rem;border-radius:.35rem;font-weight:800}
main{min-width:0}.page-shell{max-width:var(--max);margin:auto;padding:clamp(1.1rem,4vw,3rem)}.page-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(260px,.9fr);gap:clamp(1.5rem,5vw,4rem);align-items:center;padding:clamp(1rem,4vw,3.5rem) 0 3rem}.hero-copy{min-width:0}.eyebrow{text-transform:uppercase;letter-spacing:.12em;color:var(--rust);font-size:.78rem;font-weight:800}.page-hero h1{font-size:clamp(2.25rem,7vw,5.4rem);line-height:1.02;max-width:10em;margin:.35rem 0 1rem;letter-spacing:-.035em}.lead{font-size:clamp(1.05rem,2vw,1.35rem);color:var(--muted);max-width:46rem}.notice{display:flex;gap:.8rem;align-items:flex-start;margin-top:1.5rem;padding:1rem;border-left:4px solid var(--rust);background:var(--rust-soft)}.notice strong{white-space:nowrap;color:var(--sand)}figure{margin:0;min-width:0}figure img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:1.2rem;background:#111}figcaption{color:var(--muted);font-size:.82rem;margin-top:.6rem}
section,.warning{margin:2.2rem 0;padding:clamp(1.1rem,3vw,2rem);background:rgba(34,38,43,.78);border:1px solid var(--line);border-radius:.9rem}h2{font-size:clamp(1.3rem,3vw,2rem);line-height:1.25;margin-top:0}h3{font-size:1.06rem;line-height:1.3}.care-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-top:1.3rem}.care-card{min-width:0;padding:1rem;border-top:2px solid var(--safe);background:#1b1f23}.care-card>span{font:800 1.7rem/1 ui-monospace,monospace;color:var(--rust)}.care-card p{color:var(--muted)}.steps{padding-left:1.4rem}.steps li{margin:.8rem 0}.warning{border-color:#754a3d;background:#2d211f}.source-list,.related{list-style:none;padding:0}.source-list li{display:grid;grid-template-columns:minmax(12rem,.4fr) minmax(0,1fr);gap:1rem;padding:1rem 0;border-bottom:1px solid var(--line)}.source-list span{color:var(--muted)}.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem}.related a{display:block;height:100%;padding:1rem;background:#191c20;border:1px solid var(--line);border-radius:.5rem}
footer{max-width:var(--max);margin:2rem auto 0;padding:2rem clamp(1rem,4vw,2rem);border-top:1px solid var(--line);color:var(--muted)}footer>div{display:flex;justify-content:space-between;gap:1rem}footer nav{display:flex;flex-wrap:wrap;gap:1rem;margin:1rem 0}footer p{font-size:.86rem}
@media(max-width:820px){.page-hero{grid-template-columns:1fr}.care-grid,.related{grid-template-columns:1fr 1fr}.source-list li{grid-template-columns:1fr}.nav-toggle{display:block}.site-header{align-items:flex-start;flex-wrap:wrap}.site-header nav{display:none;width:100%}.site-header nav.open{display:block}.site-header ul{display:grid;grid-template-columns:1fr 1fr;justify-items:start}}
@media(max-width:520px){.care-grid,.related{grid-template-columns:1fr}.page-shell{padding:1rem}.site-header ul{grid-template-columns:1fr}.notice{display:block}.notice strong{display:block;margin-bottom:.25rem}footer>div{display:block}}