:root{--ink:#17212b;--muted:#52616f;--line:#d9e2ec;--soft:#f6f8fb;--green:#0f766e;--green2:#e6fffb;--amber:#a15c00;--amber2:#fff7e6;--red:#a61b1b;--red2:#fff0f0;--blue:#155e75;--blue2:#ecfeff;--max:980px}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);line-height:1.68;background:#fff}a{color:var(--green)}header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:2}.bar{max-width:1180px;margin:auto;padding:16px 22px;display:flex;justify-content:space-between;gap:24px;align-items:center}.brand{font-size:1.18rem;font-weight:800;color:var(--ink);text-decoration:none;letter-spacing:-.02em}.tag{font-size:.88rem;color:var(--muted);margin-top:2px}nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-size:.95rem}nav a:hover{color:var(--green)}main{max-width:var(--max);margin:auto;padding:36px 22px 70px}.breadcrumb{font-size:.92rem;color:var(--muted);margin-bottom:18px}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;margin-bottom:26px}.hero-card{border:1px solid var(--line);border-radius:22px;padding:22px;background:linear-gradient(135deg,#fff,#f8fafc);box-shadow:0 10px 30px rgba(15,23,42,.05)}h1{font-size:clamp(2rem,4.2vw,3.3rem);line-height:1.08;letter-spacing:-.045em;margin:.1em 0 .3em}.dek{font-size:1.18rem;color:var(--muted);margin-bottom:18px}.byline{font-size:.94rem;color:var(--muted)}.svgbox{border-radius:22px;background:var(--green2);border:1px solid #99f6e4;overflow:hidden}.quick{border-left:5px solid var(--green);background:var(--green2);padding:18px 20px;border-radius:15px;margin:28px 0}.warning{border-left:5px solid var(--red);background:var(--red2);padding:18px 20px;border-radius:15px;margin:26px 0}.note{border-left:5px solid var(--amber);background:var(--amber2);padding:18px 20px;border-radius:15px;margin:26px 0}.toc{border:1px solid var(--line);border-radius:15px;background:var(--soft);padding:18px 20px;margin:28px 0}.toc strong{display:block;margin-bottom:8px}.toc ul{columns:2;margin:0;padding-left:20px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0}.card{border:1px solid var(--line);border-radius:16px;padding:16px;background:#fff}.card strong{display:block;margin-bottom:6px}h2{font-size:1.72rem;line-height:1.25;letter-spacing:-.02em;margin:46px 0 14px}h3{font-size:1.25rem;margin:28px 0 10px}p{margin:0 0 17px}table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.96rem}th,td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}th{background:#f1f5f9}.keep{color:#166534;font-weight:700}.discard{color:#991b1b;font-weight:700}.check{color:#92400e;font-weight:700}.qa{border:1px solid var(--line);background:#f8fafc;border-radius:18px;padding:22px;margin:32px 0}.faq details{border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin:12px 0;background:#fff}.faq summary{font-weight:700;cursor:pointer}.sources{border-top:1px solid var(--line);margin-top:42px;padding-top:22px;color:var(--muted);font-size:.94rem}.author{border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff;margin-top:28px}.disclaimer{font-size:.9rem;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;margin-top:24px}footer{border-top:1px solid var(--line);padding:26px 22px;color:var(--muted);font-size:.92rem}.foot{max-width:1180px;margin:auto;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}footer a{color:var(--muted);text-decoration:none;margin-left:14px}.hub-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:24px 0}.hub-card{border:1px solid var(--line);border-radius:18px;padding:20px;text-decoration:none;color:var(--ink);background:#fff}.hub-card:hover{border-color:var(--green);box-shadow:0 10px 24px rgba(15,118,110,.08)}.badge{display:inline-block;border-radius:999px;padding:4px 9px;background:#e0f2fe;color:#075985;font-size:.8rem;font-weight:700;margin-bottom:10px}@media(max-width:780px){.hero{grid-template-columns:1fr}.toc ul{columns:1}.cards,.hub-grid{grid-template-columns:1fr}nav a{margin-left:0;margin-right:12px}.bar{display:block}}