:root{font-family:system-ui,"Noto Sans TC",sans-serif;color:#203d48;background:#f2f5f5;line-height:1.65;font-size:17px}*{box-sizing:border-box}body{margin:0}header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:18px 5%;background:#fff;border-bottom:1px solid #d9e2e5}header a{color:#234653;text-decoration:none;font-size:1.25rem;font-weight:750}small{font-size:.8rem;font-weight:400;color:#536b75}nav,.actions{display:flex;flex-wrap:wrap;gap:10px}main{max-width:920px;margin:26px auto;padding:0 20px;min-height:70vh}.card{background:#fff;border:1px solid #d8e2e6;border-radius:16px;padding:26px;margin:18px 0;box-shadow:0 4px 16px #203d4807}h1{font-size:1.8rem;line-height:1.3}h2{font-size:1.22rem;margin-top:0}p{margin:12px 0}.hint{color:#526d76}.callout{border-left:4px solid #66909f;background:#eef5f7;padding:14px 20px;border-radius:6px}button,.button{background:#345d6e;color:white;border:1px solid transparent;border-radius:9px;min-height:44px;padding:10px 17px;font-size:1rem;cursor:pointer;text-decoration:none;display:inline-block}button.secondary,.button.secondary{background:#fff;color:#345d6e;border-color:#b4c9d1}button:disabled{opacity:.5;cursor:default}label{display:block;font-weight:600;margin-top:15px}input,select,textarea{font:inherit;border:1px solid #adc1ca;border-radius:7px;background:white;padding:10px;max-width:100%;width:100%;color:#203d48}textarea{min-height:80px}input[type=checkbox]{width:auto}input[type=file]{font-size:.88rem}fieldset{border:1px solid #c4d5dc;border-radius:12px;margin:18px 0;padding:18px}legend{font-weight:700;padding:0 9px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 20px}.player{background:#eaf2f5;border-radius:12px;padding:20px}.player audio{width:100%;margin:12px 0}.timer{font-size:1.5rem;font-variant-numeric:tabular-nums}.topline{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.progress{height:8px;width:100%;border-radius:8px}.badge{color:#365466;background:#e8f0f3;border-radius:30px;padding:5px 12px}.error{color:#9d2929}.ok{color:#2d6153}#status{position:sticky;bottom:0;background:#e9f2ed;border-top:1px solid #c6d7ce;padding:9px 5%;min-height:45px}footer{font-size:.83rem;text-align:center;color:#687e87;padding:20px}.tablewrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:.88rem}th,td{border-bottom:1px solid #dbe4e7;text-align:left;padding:12px;vertical-align:top}td select{min-width:110px}.compact{max-width:520px;margin:auto}[hidden]{display:none!important}a{color:#315e70}:focus-visible{outline:3px solid #dc9d44;outline-offset:3px}@media(max-width:650px){header{padding:13px 16px;align-items:flex-start;flex-direction:column}main{padding:0 14px}.card{padding:20px}.grid{grid-template-columns:1fr}h1{font-size:1.5rem}.actions button{flex:1;white-space:nowrap}.player{padding:14px}fieldset{padding:13px}}

.sound-guide{background:#f2f6f7;border:1px solid #d8e4e8;border-radius:10px;padding:12px 16px;margin:18px 0}.sound-guide p{margin:6px 0}.sound-guide summary{cursor:pointer;color:#345d6e;font-weight:650;padding:8px 0}.sound-guide dl{margin:10px 0}.sound-guide dt{font-weight:650;margin-top:12px}.sound-guide dd{margin:3px 0 0;color:#526d76}