:root{--blue:#1765bd;--ink:#1e2a3a;--line:#e7edf5;--muted:#718096}*{box-sizing:border-box}body{margin:0;font-family:"Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#f6f8fb}button,input{font:inherit}button{cursor:pointer}.login-page{min-height:100vh;display:grid;grid-template-columns:54% 46%;overflow:hidden;background:#fff}.brand{position:relative;padding:35vh 0 0 14%;color:#d93025;background:linear-gradient(150deg,#3148b9,#1263b4);border-radius:0 0 42% 0}.brand:after{content:"";position:absolute;right:-100px;top:-40px;width:200px;height:110%;background:#fff;border-radius:48% 0 0 48%;opacity:.96}.seal{display:inline-flex;align-items:center;justify-content:center;width:72px;height:72px;border:3px solid currentColor;border-radius:50%;font-size:38px;font-weight:bold;margin-right:14px}.brand>div{display:flex;align-items:center;position:relative;z-index:1}.brand h1{margin:0;font-size:30px;font-weight:600;letter-spacing:3px}.brand span{font-family:serif;font-weight:bold;font-size:11px}.brand p{position:relative;z-index:1;color:#fff;font-size:29px;margin-top:68px}.login-panel{padding:31vh 15% 0 20%;position:relative}.login-panel form{max-width:400px}.login-panel h2{font-size:30px;margin:0 0 28px;color:#111}.login-panel label:not(.remember){display:block;font-size:0;margin:14px 0}.login-panel input:not([type=checkbox]){border:1px solid #dce2e8;border-radius:8px;padding:12px;width:100%;font-size:15px;outline-color:var(--blue)}.password-wrap{position:relative}.password-wrap button{position:absolute;right:8px;top:7px;border:0;background:none;color:#98a1ac}.remember{font-size:14px;color:#4a5568;display:block;margin:20px 0 28px}.primary{width:100%;border:0;border-radius:7px;background:var(--blue);color:#fff;padding:12px;font-size:16px;box-shadow:0 2px 4px #1765bd44}.primary:hover{background:#0956aa}#login-error,#upload-status{min-height:20px;color:#d92d20;font-size:14px;margin:8px 0}.login-panel>strong{display:block;color:#b92823;font-size:45px;margin-top:19vh;white-space:nowrap}header{height:58px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;box-shadow:0 1px 3px #1d283408}#menu-button,#logout{border:0;background:transparent;color:#526070;font-size:16px}.header-title{font-weight:600}.exam-layout{display:flex;height:calc(100vh - 58px)}#sidebar{width:240px;background:#fff;border-right:1px solid var(--line);transition:width .2s;padding:18px 10px;overflow:hidden;flex:none}.exam-label{background:var(--blue);display:inline-block;color:#fff;border-radius:4px;padding:8px 12px;font-size:14px}#sidebar h2{font-size:16px;font-weight:500;color:#377db5;padding:13px 10px;margin:12px 0;border-bottom:1px solid var(--line)}#question-nav{display:flex;gap:5px;flex-wrap:wrap}#question-nav button{width:42px;height:36px;border:1px solid transparent;background:#fff;color:#4a5568;border-radius:4px}#question-nav button:hover,#question-nav button.active{background:#edf5ff;color:var(--blue);border-color:#a9c9ed}.sidebar-hidden #sidebar{width:0;padding:0;border:0}.workspace{padding:22px;min-width:0;flex:1}.workspace-top{height:62px;display:flex;justify-content:space-between;align-items:flex-start}.workspace-top h1{font-size:20px;margin:4px 0}.muted,.hint{color:var(--muted);font-size:13px}#timer{background:#f0f6ff;color:#1461ad;border-radius:5px;padding:9px 14px;font-weight:bold}.content-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(310px,1fr);gap:18px;height:calc(100% - 62px)}.question-card,.answer-card{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 2px 6px #243b5310}.question-card iframe{border:0;width:100%;height:100%;background:#fff}.answer-card{padding-bottom:20px}.card-tabs{height:54px;border-bottom:1px solid var(--line);display:flex;gap:16px;padding-left:18px}.card-tabs button{background:transparent;border:0;color:#657285;padding:0 5px}.card-tabs button.active{color:var(--blue);border-bottom:3px solid var(--blue)}#answer-pane,#materials-pane{padding:18px}.upload-zone{border:1px dashed #a9bdd1;border-radius:7px;display:block;padding:25px 14px;text-align:center;color:var(--blue);margin:20px 0}.upload-zone input{display:none}#file-name{display:block;color:#526070;font-size:13px;margin-top:8px;word-break:break-all}#materials-list{list-style:none;padding:0;margin:12px 0}#materials-list li{padding:10px 0;border-bottom:1px solid var(--line)}#materials-list a{color:var(--blue);text-decoration:none;font-size:14px;word-break:break-all}@media(max-width:900px){.login-page{grid-template-columns:1fr}.brand{display:none}.login-panel{padding:15vh 11%}.login-panel>strong{font-size:30px;margin-top:12vh}.content-grid{grid-template-columns:1fr;height:auto}.answer-card{min-height:300px}.exam-layout{height:auto;min-height:calc(100vh - 58px)}#sidebar{width:165px}.workspace{padding:13px}}
.login-page{grid-template-columns:50% 50%!important}.login-page .brand:after{display:none!important}.login-page .brand{border-right:1px solid #e5eaf0!important}.login-page .university-logo{width:min(500px,76%)!important}
.login-page .university-logo{filter:sepia(1) saturate(9) hue-rotate(320deg) brightness(.82)!important}
#loading{position:fixed;z-index:1000;inset:0;display:grid;place-items:center;background:#102a4a73;backdrop-filter:blur(2px)}#loading[hidden]{display:none}.loader-card{display:flex;align-items:center;gap:14px;padding:23px 28px;background:#fff;border-radius:12px;box-shadow:0 16px 45px #0c1b2f44;color:#243b53;font-size:16px}.loader-card i{width:25px;height:25px;border:3px solid #d7e7f8;border-top-color:#1765bd;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
#workbench{position:fixed;z-index:900;inset:0;padding:4vh 6vw;background:#152a4180;backdrop-filter:blur(2px)}#workbench[hidden]{display:none}.workbench-window{height:92vh;background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 18px 60px #0c1a2e66;display:flex;flex-direction:column}.workbench-window header{height:52px;background:#f7f9fc;border-bottom:1px solid #dce4ed;flex:none}.workbench-window header strong{font-size:16px}.workbench-window header button{font-size:25px;color:#536273}.workbench-window>div{flex:1;overflow:auto;padding:20px;background:#fff}.notebook{background:#fff;font-family:Arial,sans-serif}.notebook-toolbar{padding:10px 15px;border:1px solid #d8dee8;background:#f7f7f7;color:#556}.notebook-cell{border:1px solid #d4dde8;border-left:5px solid #4f8bc9;margin:13px 0;overflow:visible}.notebook-cell.code{border-left-color:#3f9a67}.cell-label{padding:6px 10px;background:#f5f7fa;color:#64748b;font-size:12px}.notebook-cell pre{margin:0;padding:14px;white-space:pre-wrap;line-height:1.55;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace}.notebook-cell.markdown .cell-body{padding:14px;white-space:pre-wrap;line-height:1.7}.text-preview{margin:0;padding:16px;background:#1e293b;color:#e2e8f0;border-radius:6px;white-space:pre-wrap;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace}.sheet-preview{border-collapse:collapse;width:100%;font-size:13px}.sheet-preview td{border:1px solid #d8e0ea;padding:7px;white-space:nowrap}.sheet-preview tr:first-child{background:#edf5ff;font-weight:bold}.document-preview{max-width:850px;line-height:1.8}
.workbench-window>div:has(.document-editor){display:flex;flex-direction:column;padding:12px 16px;overflow:hidden}
.document-editor{display:flex;flex-direction:column;gap:12px;flex:1;min-height:0;height:100%}
.document-layout{display:flex;gap:16px;align-items:stretch;flex:1;min-height:0}
.document-layout .document-preview.editable{display:flex;flex:1 1 100%;min-width:0;min-height:0;transition:flex-basis .2s}
.document-layout.show-answers .document-preview.editable{flex:1 1 50%}
.document-answer-panel{display:flex;flex-direction:column;flex:1 1 50%;min-width:0;min-height:0;padding:16px 18px;border:1px solid #e2c97a;border-radius:8px;background:#fffaf0;color:#5c4a1f;box-shadow:0 1px 2px #1d283408}
.document-answer-panel[hidden]{display:none}
.document-answer-panel h3{margin:0 0 12px;flex:none;font-size:15px;color:#7a4e00}
.document-answer-body{flex:1;min-height:0;overflow:auto;line-height:1.8}
.document-answer-empty{margin:0;color:#9a6700;font-size:14px}
.document-toolbar{flex:none;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border:1px solid #d8dee8;background:#f7f7f7;color:#556;border-radius:6px}
.document-toolbar strong{font-weight:600;color:#34495e}
.document-preview.editable{max-width:none;padding:0;border:1px solid #e2e8f0;border-radius:8px;background:#fff;box-shadow:0 1px 2px #1d283408;overflow:hidden}
.doc-body{display:block;width:100%;height:100%;min-height:calc(92vh - 120px);margin:0;padding:18px 22px;border:0;border-radius:8px;background:#fff;color:#172b4d;overflow:auto;outline:none;font:14px/1.65 "Microsoft YaHei",Arial,sans-serif;white-space:normal}
.doc-body:focus{box-shadow:inset 0 0 0 2px #1765bd33}
.standalone-workbench .doc-body{min-height:calc(100vh - 120px)}
.docx-document{line-height:1.65;word-break:break-word}
.docx-document .docx-p{margin:0 0 10px}
.docx-document .docx-p.docx-empty{min-height:1em}
.docx-document .docx-underline{display:inline;border-bottom:1px solid currentColor;text-decoration:none;white-space:pre;padding-bottom:1px}
.docx-document .docx-table{width:100%;border-collapse:collapse;margin:8px 0 14px}
.docx-document .docx-td{border:1px solid #cfd8e3;padding:8px;vertical-align:top}.media-preview{width:100%;height:100%;min-height:500px;border:0;object-fit:contain}.attachment-link{display:flex;align-items:center;justify-content:space-between;gap:8px}.attachment-link button{border:0;background:#eef5fd;color:#1765bd;border-radius:4px;padding:5px 8px;font-size:12px}
.exam-layout{display:flex!important;flex-direction:column;height:calc(100vh - 58px)!important}.exam-layout #sidebar{width:100%;height:68px;min-height:68px;display:flex;align-items:center;gap:16px;padding:10px 22px;border-right:0;border-bottom:1px solid var(--line);overflow-x:auto}.exam-layout #sidebar h2{display:none}.exam-layout #question-nav{flex-wrap:nowrap;gap:8px}.exam-layout #question-nav button{width:auto;min-width:110px;height:40px;padding:0 16px;white-space:nowrap}.exam-layout .workspace{width:100%;min-height:0}.sidebar-hidden #sidebar{height:0;min-height:0;padding:0;border:0}
.question-tools{display:flex;align-items:center;gap:10px;min-height:50px;padding:7px 0}.question-tools[hidden]{display:none}.question-tool{border:1px solid #94bce5;background:#edf6ff;color:#0d5aa7;border-radius:6px;padding:9px 13px}.question-tool:hover{background:#dceeff}.question-tool.primary-action{border-color:#2f9d5c;background:#1f9d55;color:#fff}.question-tool.primary-action:hover{background:#178a48}.question-tool.download{border-color:#d7dfe8;background:#fff;color:#526070}.question-card-full{height:calc(100% - 62px);width:100%}.workspace:has(.question-tools:not([hidden])) .question-card-full{height:calc(100% - 112px)}.jupyter-actions{display:flex;align-items:center;gap:8px;margin-left:auto}.jupyter-actions button,.run-cell{border:1px solid #c8d1dc;background:#fff;border-radius:4px;color:#34495e;padding:6px 10px}.jupyter-actions button:hover,.run-cell:hover{background:#eef5fc}.notebook-cell textarea{display:block;width:100%;min-height:110px;resize:vertical;border:0;outline:0;padding:14px;white-space:pre;tab-size:4;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace}.cell-head{display:flex;align-items:center;justify-content:space-between;padding:5px 9px;background:#f5f7fa;color:#64748b;font-size:12px}.cell-output{border-top:1px solid #e3e8ef;background:#fafcff;padding:10px 14px;white-space:pre-wrap;color:#334155;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace}.cell-output.running{color:#1765bd}.cell-output.success{color:#16803c}
.code-editor{margin:0;padding:14px;white-space:pre-wrap;line-height:2.25;font:13px/2.25 ui-monospace,SFMono-Regular,Consolas,monospace;overflow:visible}.code-blank{height:27px;margin:0 3px;padding:2px 7px;border:0;border-bottom:2px solid #1765bd;background:#eef6ff;color:#172b4d;outline:none;font:13px ui-monospace,SFMono-Regular,Consolas,monospace;vertical-align:middle}.code-blank:focus{background:#fff7df;border-bottom-color:#e58b16;box-shadow:0 2px 0 #e58b1633}
.cell-output.success{color:#16803c;background:#f2fbf5}.cell-output.error{color:#b42318;background:#fff5f4}.cell-output.warning{color:#9a6700;background:#fffaf0}.code-blank.correct{border-bottom-color:#16803c;background:#edf9f1}.code-blank.incorrect{border-bottom-color:#d92d20;background:#fff0ef}.code-blank.empty{border-bottom-color:#d99100;background:#fff8e7}
.cell-actions{display:flex;align-items:center;gap:6px}.cell-actions button{border:1px solid #c8d1dc;background:#fff;border-radius:4px;color:#34495e;padding:6px 10px}.cell-actions button:hover,.jupyter-actions button:hover{background:#eef5fc}.cell-actions button:disabled,.jupyter-actions button:disabled{opacity:.45;cursor:not-allowed}.code-blank.revealed{border-bottom-color:#6d5bd0;background:#f3f0ff}.cell-output.answer-revealed{color:#5b48b5;background:#f7f5ff}
.standalone-workbench{margin:0;background:#eef2f7}.standalone-workbench #workbench{position:static;display:block;min-height:100vh;padding:18px;background:#eef2f7;backdrop-filter:none}.standalone-workbench .workbench-window{height:calc(100vh - 36px)}.workbench-error{margin:30px;padding:18px;border:1px solid #f0b8b3;background:#fff5f4;color:#b42318;border-radius:6px}
.code-editor textarea.code-blank{display:inline-block;min-height:27px;max-width:calc(100% - 12px);padding:2px 7px;box-sizing:border-box;overflow:hidden;resize:none;white-space:pre;line-height:1.55;vertical-align:middle}
.code-blank-wrap{position:relative;display:inline-block;vertical-align:middle;max-width:calc(100% - 12px)}
.code-blank-bubble{position:absolute;bottom:calc(100% + 8px);left:0;z-index:30;min-width:140px;max-width:min(420px,90vw);padding:9px 11px;border-radius:8px;background:#24292f;color:#e6edf3;font-size:12px;line-height:1.5;box-shadow:0 8px 24px #0c1a2e40;pointer-events:none;white-space:normal}
.code-blank-bubble::after{content:"";position:absolute;top:100%;left:14px;border:6px solid transparent;border-top-color:#24292f}
.code-blank-bubble .bubble-label{display:block;margin-bottom:4px;font-size:11px;color:#8b949e;font-family:Arial,sans-serif}
.code-blank-bubble code{display:block;font:12px/1.45 ui-monospace,SFMono-Regular,Consolas,monospace;color:#79c0ff;white-space:pre-wrap;word-break:break-word}
.code-blank-bubble .bubble-hint{display:block;margin-top:7px;padding-top:7px;border-top:1px solid #3d444d;color:#adbac7;font-size:11px;line-height:1.45;font-family:Arial,sans-serif}
.code-blank-bubble[hidden]{display:none}

/* Login dual entry */
.login-actions{display:flex;gap:12px;margin-top:4px}
.login-actions .primary{flex:1;box-shadow:0 2px 4px #1765bd33}
.login-actions .exam-entry{background:#c0392b;box-shadow:0 2px 4px #c0392b33}
.login-actions .exam-entry:hover{background:#a93226}

/* Exam home */
.exam-home-page{background:#eef3f8;min-height:100vh}
.exam-home-header{height:72px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;box-shadow:0 1px 3px #1d283408}
.exam-home-meta,.exam-take-meta{display:flex;align-items:center;gap:12px}
.exam-home-meta button,.exam-take-meta button,#back-home,#back-login{border:1px solid #d5dee8;background:#fff;color:#526070;border-radius:6px;padding:8px 12px}
.exam-home{max-width:1180px;margin:0 auto;padding:28px 24px 48px}
.exam-overall{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 24px;margin-bottom:22px;box-shadow:0 2px 8px #243b530c}
.exam-overall-head h1{margin:0 0 6px;font-size:24px}
.exam-section-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.exam-section-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;box-shadow:0 2px 8px #243b530c;display:flex;flex-direction:column;gap:10px}
.exam-section-card h2{margin:0;font-size:18px;line-height:1.45}
.exam-section-top{display:flex;justify-content:space-between;align-items:center}
.exam-section-index{display:inline-block;background:#edf5ff;color:#1461ad;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:600}
.exam-section-score{color:#c0392b;font-weight:700}
.exam-section-card .primary{width:100%;margin-top:8px}
.progress-block{margin-top:14px}
.progress-block.compact{margin-top:8px}
.progress-label{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#526070;margin-bottom:8px}
.progress-track{height:10px;background:#e8eef5;border-radius:999px;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,#1765bd,#2f9d5c);border-radius:999px;transition:width .25s ease}
.timer-box{display:flex;flex-direction:column;align-items:flex-end;background:#f0f6ff;color:#1461ad;border-radius:8px;padding:8px 14px;min-width:96px}
.timer-box span{font-size:12px;opacity:.8}
.timer-box strong{font-size:22px;letter-spacing:1px}
.timer-box.compact{flex-direction:row;align-items:center;gap:8px;padding:6px 12px;min-width:auto}
.timer-box.compact strong{font-size:16px}
.timer-box .urgent,#timer.urgent{color:#c0392b;background:#fff0ef}

/* Exam take: left vertical menu */
.exam-take-page{background:#f6f8fb}
.exam-take-layout{display:flex;height:calc(100vh - 58px)}
.exam-take-sidebar{width:280px;background:#fff;border-right:1px solid var(--line);padding:18px 14px;overflow:auto;flex:none}
.exam-take-sidebar h2{font-size:14px;font-weight:500;color:#377db5;padding:12px 8px;margin:10px 0;border-bottom:1px solid var(--line);line-height:1.5}
.exam-vertical-nav{display:flex;flex-direction:column;gap:8px}
.exam-vertical-nav button{width:100%;min-width:240px;min-height:56px;border:1px solid #e2e8f0;background:#fff;color:#4a5568;border-radius:8px;padding:12px 16px;text-align:left;display:flex;flex-direction:column;gap:2px}
.exam-vertical-nav button small{color:#94a3b8;font-size:12px}
.exam-vertical-nav button:hover,.exam-vertical-nav button.active{background:#edf5ff;color:var(--blue);border-color:#a9c9ed}
.exam-vertical-nav button.saved{border-color:#8fd0a8;background:#f2fbf5}
.exam-vertical-nav button.saved small{color:#2f9d5c}
.exam-take-layout.sidebar-hidden .exam-take-sidebar{width:0;padding:0;border:0;overflow:hidden}
.exam-take-page .workspace{display:flex;flex-direction:column;min-width:0;flex:1;height:100%;padding:18px 22px}
.exam-take-page .workspace-top{height:auto;min-height:62px;align-items:center;gap:12px}
.workspace-actions{display:flex;align-items:center;gap:12px}
.save-answer-btn,
.jupyter-actions button.save-answer-btn{width:auto;min-width:104px;padding:8px 16px;border:0;border-radius:6px;background:#1f9d55;color:#fff;box-shadow:none}
.save-answer-btn:hover,
.jupyter-actions button.save-answer-btn:hover{background:#178a48;color:#fff}
.save-answer-btn:disabled,
.jupyter-actions button.save-answer-btn:disabled{opacity:.55;cursor:not-allowed}
.workbench-save-status{font-size:13px;color:#64748b;margin-right:4px}
.jupyter-actions .save-answer-btn{margin-left:4px}
.sidebar-progress{margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.exam-take-page .question-card-full{flex:1;min-height:0;height:auto}
@media(max-width:900px){
  .login-actions{flex-direction:column}
  .exam-section-grid{grid-template-columns:1fr}
  .exam-home-header,.exam-take-meta{flex-wrap:wrap;height:auto;gap:10px;padding:12px 16px}
  .exam-take-layout{flex-direction:column;height:auto;min-height:calc(100vh - 58px)}
  .exam-take-sidebar{width:100%;border-right:0;border-bottom:1px solid var(--line)}
  .exam-vertical-nav{flex-direction:row;flex-wrap:wrap}
  .exam-vertical-nav button{width:auto;min-width:160px}
}

/* Finish exam + grading result */
.danger-btn{border:1px solid #f0b8b3;background:#fff5f4;color:#b42318;border-radius:6px;padding:8px 12px}
.danger-btn:hover{background:#ffe8e6}
.danger-btn:disabled{opacity:.55;cursor:not-allowed}
.exam-home-meta .primary{width:auto;padding:8px 12px;box-shadow:none}
.progress-fill.grading{background:linear-gradient(90deg,#1765bd,#7c5cfc)}
.exam-result-panel{margin-top:22px;display:flex;flex-direction:column;gap:16px}
.result-banner{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 24px;box-shadow:0 2px 8px #243b530c}
.result-banner.success{border-color:#8fd0a8;background:linear-gradient(180deg,#f3fbf6,#fff)}
.result-banner.warn{border-color:#f0c36d;background:#fffaf0}
.result-banner.error{border-color:#f0b8b3;background:#fff5f4}
.result-banner h2{margin:0 0 10px}
.final-score{font-size:48px;font-weight:700;color:#1461ad;line-height:1.1;margin:8px 0 12px}
.final-score small{font-size:22px;color:#64748b;margin-left:8px;font-weight:500}
.result-details{display:flex;flex-direction:column;gap:12px}
.result-section{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.result-section-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:10px}
.result-question{padding:10px 0;border-top:1px solid #eef2f7}
.result-question-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:6px}
.llm-rationale{margin-top:8px;padding:10px 12px;border-radius:8px;background:#f7f5ff;border:1px solid #ddd6fe;color:#4c1d95}
.llm-rationale strong{display:block;margin-bottom:4px;font-size:13px}
.llm-rationale p{margin:0;font-size:13px;line-height:1.55;color:#5b21b6}
.code-result{margin-top:8px;padding:10px 12px;border-radius:8px;background:#f8fafc;border:1px solid #e2e8f0}
.code-result strong{display:block;margin-bottom:4px}
.blank-result-list{margin:8px 0 0;padding-left:18px}
.blank-result-list li{margin:0 0 10px;line-height:1.5}
.blank-result-list li.ok{color:#166534}
.blank-result-list li.bad{color:#b42318}
.blank-result-list code{display:inline-block;margin-top:2px;padding:2px 6px;border-radius:4px;background:#eef2ff;color:#1e3a8a;font:12px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;word-break:break-word}

.ai-grading-panel{margin:22px 0 0;background:#fff;border:1px solid #c7d7fe;border-radius:12px;padding:22px 24px;box-shadow:0 2px 8px #243b530c}
.ai-grading-panel[hidden]{display:none}
.ai-grading-head h1{margin:0 0 6px;font-size:26px;color:#1d4ed8}
.ai-live-score{display:flex;align-items:baseline;gap:8px;margin-top:16px;padding:12px 14px;border-radius:8px;background:#eff6ff;color:#1e3a8a}
.ai-live-score span{font-size:14px}
.ai-live-score strong{font-size:32px;line-height:1}
.ai-live-score small{font-size:16px;color:#64748b}
.result-banner.live{border-color:#93c5fd;background:linear-gradient(180deg,#eff6ff,#fff)}
.progress-fill.grading{background:linear-gradient(90deg,#1765bd,#7c5cfc)}

.progress-detail{margin:8px 0 0;font-size:12px;line-height:1.6}
.result-question-actions{display:flex;align-items:center;gap:10px}
.practice-btn{border:1px solid #94bce5;background:#edf6ff;color:#0d5aa7;border-radius:6px;padding:6px 12px;font-size:13px}
.practice-btn:hover{background:#dceeff}