:root{--blue:#143e69;--soft:#e9f0f7;--line:#d4dee8;--ink:#1c2c3d}*{box-sizing:border-box}body{margin:0;background:#f3f6fa;color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}header{padding:18px 32px;display:flex;justify-content:space-between;align-items:center;background:#fff;border-bottom:1px solid var(--line);gap:20px}small{font-size:12px;letter-spacing:.04em;color:#526c84}h1{font-size:24px;margin:0}h2{margin:0 0 16px;font-size:22px}h3{margin:18px 0 8px}p{margin:8px 0 14px}.source{padding:10px 32px;font-size:12px;background:#e7edf5}a{color:var(--blue)}nav{display:flex;gap:8px;padding:14px 32px;flex-wrap:wrap}.step{padding:4px 13px;border:1px solid var(--line);border-radius:20px;color:#52677a;font-size:13px}.step.on{background:var(--blue);color:white}#status{padding:0 32px;color:#9b3e11;font-size:13px}#clock{font-variant-numeric:tabular-nums;font-size:20px;font-weight:700;white-space:nowrap}main{padding:0 24px 24px;max-width:1600px;margin:auto}.card{padding:26px;background:white;border:1px solid var(--line);border-radius:10px;margin:14px 0}.intro{max-width:980px;margin:24px auto}.note{padding:13px 16px;border-left:4px solid #ba8e28;background:#fff5d9;margin:14px 0}.grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(320px,1fr);gap:20px;align-items:start}.paper,.answer{max-height:calc(100vh - 240px);overflow:auto;background:white;border:1px solid var(--line);border-radius:8px}.paper{padding:8px}.paper img{display:block;width:100%;height:auto}.answer{padding:24px}.question{padding:14px 0;border-bottom:1px solid var(--line)}.question:last-child{border:0}.opt{display:flex;gap:12px;padding:10px;border:1px solid var(--line);border-radius:7px;margin:8px 0;cursor:pointer}.opt:has(input:checked){background:var(--soft);border-color:var(--blue)}input,textarea,button{font:inherit}input[type=text]{border:1px solid #94a9bc;border-radius:5px;padding:8px;width:160px;font-size:18px}textarea{width:100%;min-height:260px;padding:14px;border:1px solid #98aabd;line-height:1.7;border-radius:6px;resize:vertical}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:20px 0;flex-wrap:wrap}button,.button{padding:11px 20px;background:var(--blue);border:1px solid var(--blue);border-radius:6px;color:white;cursor:pointer;text-decoration:none;display:inline-block}button.secondary{background:white;color:var(--blue)}button:disabled{opacity:.45;cursor:default}.chip{padding:6px 10px;margin:5px;background:var(--soft);border:1px solid #b5c9da;color:var(--ink)}.slot{min-width:64px;min-height:36px;padding:3px 7px;border:0;border-bottom:2px solid #87a3bd;border-radius:0;background:transparent;color:var(--ink);margin:3px}.fillline{line-height:3.0}.muted{font-size:13px;color:#526c84}.media{max-width:760px;margin:25px auto;text-align:center}.media audio{width:100%}.media video{max-height:400px;width:100%;background:#101b2a;border-radius:8px}.score{font-size:28px;font-weight:700;color:var(--blue)}.result-row{display:flex;justify-content:space-between;padding:12px;border-bottom:1px solid var(--line);gap:15px}.bad{color:#9e352b}.good{color:#1c684f}.checklist label{display:block;margin:10px 0}details{margin:15px 0}summary{cursor:pointer;color:var(--blue)}footer{text-align:center;padding:18px 30px;font-size:11px;color:#546b7f}#clock.low{color:#b13928}.copyright{font-size:12px}@media(max-width:850px){header{padding:14px 18px}h1{font-size:18px}.source,nav{padding:10px 18px}main{padding:0 12px 20px}.grid{grid-template-columns:1fr}.paper{max-height:55vh}.answer{max-height:none}.card,.answer{padding:18px}}@media print{header,.source,nav,footer,button,.media{display:none}main{padding:0}.card{border:0}.paper,.answer{max-height:none;overflow:visible}.grid{display:block}}

[hidden]{display:none!important}

/* Keep source and response side by side in the narrow preview panel. */
.grid{grid-template-columns:minmax(400px,1.6fr) minmax(260px,1fr);min-width:680px}
@media(max-width:850px){.grid{grid-template-columns:minmax(400px,1.6fr) minmax(260px,1fr)}.paper,.answer{max-height:calc(100vh - 240px);min-height:280px}.answer{padding:16px}main{overflow-x:auto}}

/* Give the original page priority and keep response controls compact. */
.grid{grid-template-columns:minmax(480px,2.65fr) minmax(220px,1fr);min-width:720px;gap:14px}
.answer{padding:16px;font-size:14px;line-height:1.5}
.answer h2{font-size:18px;margin-bottom:10px}
.answer h3{font-size:15px;margin:12px 0 6px}
.answer p{margin:5px 0 8px}
.answer .question{padding:9px 0}
.answer .question>b{font-size:14px}
.answer input[type=text]{width:112px;font-size:15px;padding:6px}
.answer .opt{padding:7px;gap:8px;margin:5px 0}
.answer button{font-size:13px;padding:8px 12px}
.answer .chip{padding:5px 7px;margin:3px}
.answer .slot{min-width:45px;padding:2px 5px}
@media(max-width:850px){.grid{grid-template-columns:minmax(480px,2.65fr) minmax(220px,1fr)}.answer{padding:12px}}

.paper{overflow-x:hidden}.paper img{width:120%;max-width:none;margin-left:-10%}

.listening-audio{border:1px solid #b5c9da;border-radius:8px;background:#eef4fa;padding:16px 20px;margin-bottom:20px}.listening-audio h3{margin:0 0 6px}.listening-audio .media{margin:12px 0;text-align:left;max-width:100%}.media progress{display:block;width:100%;height:12px;accent-color:var(--blue)}

.listening-audio>audio{display:block;width:100%;max-width:560px;margin:12px 0}

/* Long writing tasks need a full editor rather than the compact reading answer column. */
.grid:has(textarea){grid-template-columns:minmax(300px,1fr) minmax(420px,1.3fr);min-width:734px}
.grid:has(textarea)>.answer{display:flex;flex-direction:column;height:calc(100vh - 240px);min-height:480px;padding:18px}
.grid:has(textarea) textarea{flex:1;min-height:320px;font-size:16px;line-height:1.7;padding:16px;resize:vertical}
.grid:has(textarea) .answer h2{font-size:20px}

.grid:has(textarea){grid-template-columns:minmax(340px,1fr) minmax(360px,1.1fr);min-width:714px}
.writing-source{padding:24px;font-size:17px;line-height:1.75;height:calc(100vh - 240px)}
.writing-source h2{font-size:21px;line-height:1.4;margin:0 0 12px}
.writing-source p{margin:0 0 20px}.writing-source li{margin:8px 0}.writing-source ul{padding-left:24px}
.writing-source blockquote{margin:20px 0;padding:16px;border-left:3px solid #94a9bc;background:#f3f6fa}
.writing-source details img{width:100%;max-width:100%;margin:12px 0 0}