:root{color-scheme:light;--ink:#181818;--muted:#737373;--line:#e5e5e5;--paper:#fff;--bg:#f7f7f6}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 system-ui,-apple-system,"Microsoft YaHei",sans-serif}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea{touch-action:manipulation}button,a{cursor:pointer}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button{border:1px solid var(--line);background:var(--paper);border-radius:7px;padding:8px 16px}button:hover{border-color:#888}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}:focus-visible{outline:2px solid #555;outline-offset:3px}header{height:76px;border-bottom:1px solid var(--line);background:var(--paper);padding:0 5%;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:23px;font-weight:750;white-space:nowrap}.brand span{font-size:14px;font-weight:500;border-left:1px solid #ccc;padding-left:18px;margin-left:18px}nav{display:flex;align-items:center;gap:20px}main{max-width:1120px;margin:44px auto;padding:0 24px}.intro{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:30px}.intro h1{font-size:30px;letter-spacing:-1px;margin:5px 0 8px}.intro p{margin:0;color:var(--muted)}.eyebrow{font-size:12px;letter-spacing:2px}.filters,.question-card{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:24px}.filter-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}label{display:block;font-size:13px;font-weight:600}input,select,textarea{display:block;width:100%;min-width:0;border:1px solid #d5d5d5;border-radius:6px;padding:10px 12px;background:var(--paper);margin-top:7px}textarea{min-height:100px;resize:vertical}.search-row{display:flex;gap:10px;margin-top:20px}.search-row input{margin:0;flex:1}.search-row button{min-width:92px}.result-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:28px 0 14px}.result-heading h2{font-size:17px;margin:0}#status{font-size:13px;color:var(--muted)}.empty{padding:54px 24px;text-align:center;background:var(--paper);border:1px dashed #ccc;border-radius:10px}.empty h3{font-size:18px;margin:0 0 10px}.empty p{color:var(--muted);margin:8px 0}.question-card{margin-bottom:18px}.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;border-bottom:1px solid var(--line);padding-bottom:12px;font-size:13px;color:var(--muted)}.card-head strong{color:var(--ink)}.question-text{white-space:pre-wrap;overflow-wrap:anywhere;font:17px/1.95 "Noto Serif SC","Songti SC","SimSun",serif;margin:20px 0}.question-text .katex-display{overflow-x:auto;overflow-y:hidden}.question-card img{max-width:100%;max-height:420px;object-fit:contain;display:block;margin:16px auto}.question-card details{border-top:1px solid var(--line);padding:14px 0}.question-card summary{cursor:pointer;font-weight:600;font-size:14px}.card-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px}.muted,.rules,footer{font-size:13px;color:var(--muted)}.rules{border-top:1px solid var(--line);margin-top:36px;padding-top:20px}.rules p{margin:8px 0}.pagination{justify-content:center;margin:24px 0}.pagination[hidden]{display:none}footer{max-width:1072px;margin:30px auto;padding:20px 24px;display:flex;justify-content:space-between;gap:12px}dialog{width:min(680px,calc(100% - 28px));max-height:85vh;padding:26px;border:1px solid var(--line);border-radius:12px;background:var(--paper);color:var(--ink)}dialog::backdrop{background:#0006}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:16px}.dialog-head h2{font-size:20px;margin:0}.dialog-head button{font-size:24px;border:0;padding:0 8px}dialog label{margin:16px 0}.check{display:flex;align-items:flex-start;gap:10px;font-weight:400}.check input{width:18px;flex:none;margin-top:5px}.record{border-bottom:1px solid var(--line);padding:18px 0}.record h3{margin:0;font-size:16px}.record p{margin:6px 0}.record button{margin-right:8px}#dialogStatus{white-space:pre-wrap;color:var(--muted)}
@media(max-width:650px){header{height:auto;min-height:68px;padding:14px 18px;flex-wrap:wrap;gap:10px}.brand{font-size:20px}.brand span{padding-left:10px;margin-left:10px}nav{gap:16px;font-size:13px}main{margin:26px auto;padding:0 16px}.intro{align-items:flex-start;flex-direction:column;gap:18px}.intro h1{font-size:25px}.filter-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.filters,.question-card{padding:18px}.result-heading,.card-head,.card-actions{align-items:flex-start;flex-direction:column;gap:8px}.question-text{font-size:16px}.empty{padding:35px 18px}}

/* 夜览仅调整界面，题目配图保留原色。 */
.responsibility{min-width:0;margin:20px 0 16px}
.notice-row{display:flex;align-items:center;flex-wrap:wrap;gap:0 4px;font-size:13px}
.notice-row label{display:flex;align-items:center;gap:8px;margin:0;font-weight:400;cursor:pointer}
.notice-row input{width:16px;height:16px;min-height:16px;flex:none;margin:0;accent-color:var(--ink);padding:0}
.notice-row .notice-link{border:0;background:transparent;padding:4px 0;font-size:13px;min-height:32px;text-decoration:underline;text-underline-offset:3px}
.notice-details:not([open]){display:none}
.notice-details{margin-top:12px;padding:16px;border:1px solid var(--line);border-radius:9px;background:var(--bg);max-height:280px;overflow:auto;font-size:13px;line-height:1.85}
.notice-details summary{cursor:pointer;font-weight:600}
.notice-details section{margin-top:16px}.notice-details p{margin:5px 0 0;color:var(--muted)}
:root.dark{color-scheme:dark;--ink:#ededed;--muted:#aaa;--line:#3d3d3d;--paper:#202020;--bg:#151515}
.dark input,.dark select,.dark textarea,.dark .brand span,.dark .empty{border-color:var(--line)}
.dark :focus-visible{outline-color:var(--ink)}

.brand{display:flex;align-items:center;gap:9px}.brand>img{border-radius:50%;background:#fff;filter:none}.brand span{display:inline-flex;align-items:center;gap:8px}.brand svg{width:22px;height:22px}.bank-embedded header{height:52px;min-height:52px;justify-content:flex-end;padding:8px 28px;background:transparent}.bank-embedded header .brand,.bank-embedded header nav>a{display:none}.bank-embedded main{margin-top:20px}.bank-embedded footer{margin-top:12px}.bank-embedded .intro h1{font-size:26px}

.bank-embedded main{padding:0 20px;margin:24px auto}.bank-embedded .intro h1{font-size:23px}.bank-embedded .filters{padding:16px}.bank-embedded .filter-row{gap:12px}.bank-embedded .question-card{padding:16px}.bank-embedded .empty{padding:30px 16px}

/* 小屏使用完整宽度，表单字号防止 iOS 聚焦时自动放大。 */
@media(max-width:650px){
 body{overflow-wrap:anywhere}
 .bank-embedded header{padding:4px 14px;min-height:52px;height:52px}
 .bank-embedded main{padding:0 14px;margin:16px auto}
 .bank-embedded .intro{gap:14px;margin-bottom:20px}
 .bank-embedded .intro h1{font-size:22px;letter-spacing:-.5px}
 button,input,select,textarea{font-size:16px;min-height:44px}
 input,select,textarea{padding:9px 10px}
 .filter-row,.bank-embedded .filter-row{gap:12px}
 .filters,.bank-embedded .filters{padding:14px}
 .search-row{gap:8px;margin-top:14px}
 .search-row button{min-width:64px;padding:8px 12px;flex:none}
 .search-row input{width:0;min-width:0}
 .result-heading{margin:22px 0 12px}
 .question-card{min-width:0;overflow:hidden}
 .question-text{line-height:1.8}
 .card-actions button{width:100%}
 .question-card summary{min-height:44px;display:flex;align-items:center}
 .pagination{flex-wrap:wrap;gap:10px}
 footer{padding:16px 14px calc(16px + env(safe-area-inset-bottom,0px));flex-wrap:wrap}
 dialog{width:calc(100% - 20px);max-height:calc(100dvh - 32px);padding:18px;overflow:auto;overscroll-behavior:contain}
 .dialog-head{position:sticky;top:-18px;background:var(--paper);padding:8px 0;z-index:1}
 .dialog-head button{min-width:44px;flex:none}
 .record button{margin-bottom:8px}
}