:root{
  --bg:#f4f7f6;--card:#fff;--ink:#16302d;--muted:#5d716e;--line:#d8e3e1;
  --brand:#0f766e;--brand-dark:#0a5751;--accent:#b42318;--ok:#137333;--bad:#b3261e;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.7}.wrap{width:min(1040px,calc(100% - 32px));margin:auto}.hero{background:linear-gradient(135deg,#0f766e,#123d39);color:#fff;padding:56px 0 48px}.eyebrow{margin:0 0 8px;letter-spacing:.12em;font-size:.85rem;opacity:.8}.hero h1{margin:0;font-size:clamp(2rem,6vw,4rem);line-height:1.15}.hero h1 span{color:#b7f1e8}.lead{max-width:760px;margin:20px 0 0;color:#e4f3f1}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}button{border:0;border-radius:12px;padding:13px 18px;font-size:1rem;font-weight:700;cursor:pointer;transition:.18s transform,.18s opacity}button:hover{transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.55;transform:none}.primary{background:#fff;color:var(--brand-dark)}.secondary{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}main{padding:32px 0 64px}.progress-panel{position:sticky;top:0;z-index:5;background:rgba(244,247,246,.94);backdrop-filter:blur(8px);padding:14px 0 12px}.progress-meta{display:flex;justify-content:space-between;font-weight:700}.bar{height:9px;background:#dce9e7;border-radius:99px;overflow:hidden;margin-top:8px}.bar>div{height:100%;width:0;background:var(--brand);transition:width .25s}.quiz-grid{display:grid;gap:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 7px 24px rgba(22,48,45,.06)}.card h2{margin:0 0 10px;font-size:1.2rem}.qnum{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#dff3ef;color:var(--brand-dark);margin-right:8px}.question{font-weight:700;margin:14px 0}.options{display:grid;gap:10px}.option{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:12px;padding:12px;cursor:pointer;background:#fbfdfd}.option:hover{border-color:#8fbab4}.option input{margin-top:6px}.textarea{width:100%;min-height:120px;border:1px solid var(--line);border-radius:12px;padding:12px;font:inherit;resize:vertical}.controls{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.check{background:var(--brand);color:#fff}.next{background:#223b38;color:#fff}.reveal{background:#edf3f2;color:var(--ink)}.feedback{margin-top:15px;padding:14px;border-radius:12px}.feedback.ok{background:#e8f5eb;color:var(--ok)}.feedback.bad{background:#fdecea;color:var(--bad)}.model-answer{margin-top:12px;padding:14px;background:#f2f6f5;border-left:4px solid var(--brand);border-radius:8px}.model-answer ul{margin:.4em 0;padding-left:1.3em}.hidden{display:none!important}.result,.answer-sheet,.source-note{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.answer-block{padding:18px 0;border-top:1px solid var(--line)}.answer-block:first-child{border-top:0}.answer-block h3{margin:0 0 8px}.answer-block p,.answer-block ul{margin:.4em 0}.note{color:var(--muted);font-size:.92rem}.data-table{width:100%;border-collapse:collapse;margin-top:12px;font-size:.94rem}.data-table th,.data-table td{border:1px solid var(--line);padding:10px;vertical-align:top}.data-table th{background:#edf5f3}.tag{display:inline-block;background:#eef4f3;border-radius:999px;padding:3px 9px;margin:3px;font-size:.88rem}footer{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:.9rem}@media(max-width:640px){.hero{padding:38px 0}.card{padding:18px}.data-table{display:block;overflow-x:auto;white-space:nowrap}.actions button{width:100%}}

.disaster-list{display:grid;gap:14px;margin:18px 0}.disaster-item{display:grid;grid-template-columns:minmax(250px,1fr) minmax(220px,360px);gap:14px;align-items:center;padding:15px 16px;border:1px solid #d8e2e2;border-radius:12px;background:#fff}.text-input{width:100%;box-sizing:border-box;padding:12px 14px;border:1px solid #aebcbc;border-radius:9px;font:inherit;background:#fff}.text-input:focus{outline:3px solid rgba(15,118,110,.16);border-color:#0f766e}@media(max-width:680px){.disaster-item{grid-template-columns:1fr}}