:root{--navy:#0f2d3a;--ink:#162631;--muted:#5c6c75;--line:#dce6e9;--bg:#f6fafb;--card:#fff;--yellow:#f6c445;--green:#1f8a5b;--blue:#316b8f;--red:#b84a3a;--softyellow:#fff6d8;--softblue:#eaf5fb;--softgreen:#eaf7ef;--shadow:0 18px 50px rgba(15,45,58,.10);--radius:22px;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}a{color:#116487;text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.skip{position:absolute;left:-999px;top:auto}.skip:focus{left:18px;top:18px;background:#fff;padding:12px 16px;border-radius:12px;z-index:999}.site-header{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);z-index:50}.nav-wrap{max-width:var(--max);margin:auto;display:flex;align-items:center;gap:20px;padding:12px 20px}.brand{display:flex;align-items:center;gap:12px;color:var(--navy);font-weight:900}.brand-mark{width:44px;height:44px;border-radius:14px;background:var(--yellow);display:grid;place-items:center;box-shadow:var(--shadow)}.brand-mark:after{content:"✓";font-size:26px;color:var(--navy);font-weight:900}.brand span{font-size:1.12rem}.main-nav{margin-left:auto;display:flex;gap:14px;align-items:center}.main-nav a{color:var(--ink);font-weight:700;font-size:.92rem;padding:8px 9px;border-radius:10px}.main-nav a:hover{background:var(--softblue);text-decoration:none}.nav-toggle{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;font-weight:800}.hero{background:linear-gradient(135deg,rgba(15,45,58,.88),rgba(49,107,143,.74)),var(--hero);background-size:cover;background-position:center;min-height:560px;display:flex;align-items:center;color:#fff}.hero .inner{max-width:var(--max);margin:auto;padding:70px 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p.lead{font-size:1.15rem;color:#40525b}.hero-img{border-radius:28px;box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover;width:100%}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:34px;align-items:start}.article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:0 8px 28px rgba(15,45,58,.05)}.article h2{font-size:1.9rem;line-height:1.2;margin:34px 0 12px}.article h3{font-size:1.3rem;margin:26px 0 10px}.article ul,.article ol{padding-left:1.2rem}.article li{margin:8px 0}.toc{position:sticky;top:92px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 8px 28px rgba(15,45,58,.05)}.toc h3{margin-top:0}.toc a{display:block;padding:7px 0;color:var(--muted);font-weight:650}.callout{border-radius:18px;padding:18px 20px;margin:22px 0;border:1px solid}.callout.info{background:var(--softblue);border-color:#cce5f2}.callout.warn{background:var(--softyellow);border-color:#f0dea3}.callout.good{background:var(--softgreen);border-color:#cde8d7}.checklist{background:#fbfeff;border:1px solid var(--line);border-radius:18px;padding:18px;margin:20px 0}.check-item{display:flex;gap:12px;align-items:flex-start;border-bottom:1px solid #edf3f5;padding:10px 0}.check-item:last-child{border-bottom:none}.check-item input{margin-top:6px;transform:scale(1.15)}.risk-badge{display:inline-block;font-weight:900;border-radius:999px;padding:4px 10px;font-size:.78rem}.risk-low{background:#dff5e7;color:#17623e}.risk-med{background:#fff1b7;color:#725600}.risk-high{background:#ffe0d9;color:#9a2d20}.table-wrap{overflow:auto}.resource-table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--line)}.resource-table th,.resource-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.resource-table th{background:#eef6fa}.diagram{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;margin:24px 0;box-shadow:0 8px 28px rgba(15,45,58,.04)}.risk-matrix{display:grid;grid-template-columns:70px repeat(3,1fr);gap:6px}.risk-matrix div{padding:12px;text-align:center;border-radius:12px;font-weight:800}.risk-matrix .axis{background:#f0f5f7;color:var(--muted)}.risk-matrix .low{background:#dff5e7}.risk-matrix .med{background:#fff1b7}.risk-matrix .high{background:#ffe0d9}.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.flow div{background:#eef6fa;border:1px solid #cfe5ee;border-radius:16px;padding:14px;text-align:center;font-weight:800}.zone-map{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.zone-map div{min-height:82px;border:2px dashed 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