:root{--paper:#f2f4f1;--card:#fbfcfa;--ink:#1a2420;--muted:#5c6b64;--rule:#c5ccc6;--field:#2f5d50;--field-deep:#1f4339;--stamp:#b45309;--risk:#b91c1c;--warn:#a16207}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--paper);color:var(--ink);font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif}a{color:var(--field);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1040px;margin:0 auto;padding:0 20px}.strip{background:var(--card);border-bottom:1px solid var(--rule);padding:12px 0;position:-webkit-sticky;position:sticky;top:0;z-index:10}.strip-inner{justify-content:space-between;gap:12px;flex-wrap:wrap}.brand,.strip-inner{display:flex;align-items:center}.brand{gap:8px;font-weight:700}.mark{width:28px;height:28px;border-radius:6px;background:var(--field);color:#fff;display:inline-flex;align-items:center;justify-content:center}.mark,.nav{font-size:14px}.nav{display:flex;gap:14px;flex-wrap:wrap}.btn{display:inline-block;border:1px solid var(--field);background:var(--field);color:#fff;padding:8px 14px;border-radius:8px;font-size:14px;cursor:pointer}.btn:hover{background:var(--field-deep);text-decoration:none}.btn.ghost{background:transparent;color:var(--field)}.btn.lg{padding:12px 18px;font-size:16px}.btn:disabled{opacity:.5;cursor:not-allowed}main{padding:28px 0 64px}h1{font-size:32px;line-height:1.25;margin:0 0 12px}h2{font-size:22px;margin:28px 0 12px}.lead{color:var(--muted);line-height:1.7;max-width:42em}.card{background:var(--card);border:1px solid var(--rule);border-radius:12px;padding:16px 18px}.grid2{display:grid;grid-template-columns:1.1fr .9fr;grid-gap:20px;gap:20px}@media (max-width:860px){.grid2{grid-template-columns:1fr}}.sheet-head{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:10px}.sheet li{list-style:none;display:grid;grid-template-columns:18px 1fr auto;grid-gap:10px;gap:10px;padding:10px 0;border-bottom:1px dashed var(--rule);align-items:start}.sheet ul{margin:0;padding:0}.box{width:14px;height:14px;border:1.5px solid var(--field);border-radius:3px;margin-top:3px}.box.on{background:var(--field)}.tag{font-size:12px;padding:2px 6px;border-radius:4px;border:1px solid var(--rule);color:var(--muted)}.tag.high{color:var(--risk);border-color:var(--risk)}.tag.mid{color:var(--warn);border-color:var(--warn)}.form{gap:12px;max-width:480px}.form,label{display:flex;flex-direction:column}label{font-size:13px;color:var(--muted);gap:6px}input,select,textarea{border:1px solid var(--rule);border-radius:8px;padding:10px 12px;font-size:14px;background:#fff;color:var(--ink)}input:focus,select:focus,textarea:focus{outline:2px solid var(--field);border-color:var(--field)}table{width:100%;border-collapse:collapse;background:var(--card);font-size:14px}td,th{border:1px solid var(--rule);padding:8px 10px;text-align:left;vertical-align:top}th{background:#e7eee9;font-weight:600}.muted{color:var(--muted);font-size:13px}.error{color:var(--risk)}.error,.ok{font-size:14px}.ok{color:var(--field)}.pill{display:inline-block;padding:2px 8px;border-radius:999px;background:#e7eee9;font-size:12px}.disclaimer{margin-top:28px;padding:12px 14px;border-left:3px solid var(--stamp);background:#fff7ed;color:#7c2d12;font-size:13px;line-height:1.6}.stack{flex-direction:column;gap:12px}.row,.stack{display:flex}.row{gap:10px;flex-wrap:wrap;align-items:center}.quiz-q{margin-bottom:14px}.cite{border-left:3px solid var(--field);padding:8px 12px;margin:8px 0;background:#eef5f1;font-size:13px;white-space:pre-wrap}