:root{--ink:#18212f;--muted:#627084;--line:#dfe5ec;--surface:#fff;--bg:#f5f7fa;--blue:#1769aa;--blue-dark:#0d4d80;--green:#157347;--red:#b42318;--amber:#b54708}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.55}.topbar{height:58px;background:#102a43;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1180px)/2));box-shadow:0 1px 3px #0002}.brand{color:#fff;text-decoration:none;font-weight:700;font-size:17px;white-space:nowrap}.brand span{font-size:11px;color:#b9d9f4;border:1px solid #4e718f;border-radius:4px;padding:1px 4px;margin-left:4px}.topbar nav{display:flex;align-items:center;gap:16px}.topbar nav a,.link-button{font:inherit;color:#d9e7f2;text-decoration:none;border:0;background:none;padding:4px;cursor:pointer}.topbar nav 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#bfcbd8;border-radius:6px;background:#fff;color:var(--ink);font:inherit;padding:8px 9px;line-height:1.35}textarea{resize:vertical}input:focus,select:focus,textarea:focus{outline:3px solid #bde0fa;border-color:var(--blue)}fieldset{border:1px solid var(--line);border-radius:8px;margin:0;padding:16px}legend{font-weight:700;padding:0 5px}.check-row{display:flex;gap:20px;flex-wrap:wrap}.check-row label{display:block;font-weight:500}.check-row input{width:auto}.filter-row{display:flex;gap:10px}.filter-row select{width:140px}.filter-row input{max-width:380px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}.stats div{background:#eaf3fa;border:1px solid #c8e0f0;border-radius:10px;padding:17px}.stats strong{display:block;font-size:28px;color:#104a77}.stats span{color:#48657e;font-size:13px}.steps{margin:0;padding-left:22px}.steps li{padding:5px 0}.steps a{color:var(--blue)}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:650px}th{text-align:left;color:#fff;background:#244a66;font-size:13px;font-weight:600;padding:9px 11px}th:first-child{border-radius:5px 0 0 5px}th:last-child{border-radius:0 5px 5px 0}td{border-bottom:1px solid var(--line);padding:11px;vertical-align:middle}td small{display:block;color:var(--muted);margin-top:2px}.badge{display:inline-block;border-radius:999px;padding:2px 8px;font-size:12px;font-weight:700;white-space:nowrap}.badge.draft{background:#edf0f4;color:#465568}.badge.published{background:#d9f4e6;color:#12623c}.badge.closed{background:#fce8e6;color:#9a2d23}.badge.neutral{background:#e8f1f8;color:#235c85}.flash{padding:11px 13px;border-radius:8px;margin-bottom:16px;border:1px solid}.flash.success{color:#155b36;background:#e9f8ef;border-color:#b9e3c9}.flash.error{color:#8c241d;background:#feeeee;border-color:#f2c5c0}.flash.info{color:#195679;background:#e7f3fa;border-color:#c1e1f1}.empty{color:var(--muted);padding:20px 0;text-align:center}.question-list{display:grid;gap:0}.question-row{border-bottom:1px solid var(--line);padding:15px 0}.question-row:first-child{padding-top:0}.question-row:last-child{border-bottom:0;padding-bottom:0}.question-row h3{font-size:16px;margin:6px 0}.question-row p{font-size:13px;margin:5px 0}.question-meta{display:flex;gap:8px;color:var(--muted);font-size:13px;align-items:center}.link-danger{font:inherit;font-size:13px;padding:0;border:0;color:var(--red);background:none;cursor:pointer}.import-guide{background:#f4f8fb;border-left:3px solid #5ea2d6;padding:12px 15px}.import-guide h2{font-size:15px}.import-guide ul{margin:6px 0 0;padding-left:20px}.rule-grid{display:grid;grid-template-columns:1.2fr 1fr 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strong{font-size:24px;font-variant-numeric:tabular-nums;color:#164e78}.submit-top{float:right;margin:0 0 10px}.question-nav{clear:both;display:flex;gap:7px;flex-wrap:wrap;padding:12px 0}.question-nav a{height:29px;width:29px;border:1px solid #b9c9d6;border-radius:5px;text-align:center;line-height:28px;color:#3c566e;text-decoration:none;background:#fff}.question-nav a.answered{background:#d9f4e6;border-color:#87cfaa;color:#145f38}.paper-questions{display:grid;gap:14px}.paper-question{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;display:grid;grid-template-columns:36px 1fr;gap:13px;scroll-margin-top:12px}.question-number span{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#e1f0fb;color:#13537d;font-weight:700}.question-number small{display:block;white-space:nowrap;color:var(--muted);font-size:11px;margin-top:5px}.question-content h2{font-size:17px;margin:0 0 12px;font-weight:600}.question-type{display:none}.options{display:grid;gap:9px}.option{display:flex;grid-template-columns:auto 22px 1fr;align-items:center;gap:9px;border:1px solid #d6e0e8;border-radius:7px;padding:10px;font-weight:400;cursor:pointer}.option:has(input:checked){border-color:#57a0d5;background:#f0f8fd}.option input{width:auto}.option b{color:#1e6091}.sticky-submit{position:sticky;bottom:12px;display:flex;justify-content:flex-end;margin-top:14px}.sticky-submit .button{box-shadow:0 3px 13px #164e7850}.result-hero{text-align:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:32px 20px;margin-bottom:18px}.score strong{font-size:55px;letter-spacing:-2px;color:#105682}.score span{font-size:18px;color:var(--muted)}.answer-review{border-top:1px solid var(--line);padding:18px 0}.answer-review:first-of-type{border-top:0}.answer-review h3{font-size:16px;margin:8px 0}.answer-review p{margin:7px 0}.answer-pill{display:inline-block;background:#f0f3f5;border-radius:5px;padding:2px 6px;margin:2px 4px 2px 0;font-size:13px}.answer-pill.correct{background:#d9f4e6;color:#145f38}.answer-review.wrong{border-left:3px solid #e79088;padding-left:12px}.answer-review.correct{border-left:3px solid #74c697;padding-left:12px}@media(max-width:700px){.topbar{padding:0 13px}.topbar nav{gap:8px}.topbar nav a{display:none}.user-name{border-left:0;padding-left:0;max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.container{padding:22px 13px 48px}.page-heading{align-items:flex-start;flex-direction:column;gap:12px}.stats{grid-template-columns:repeat(2,1fr)}.form-grid.two,.form-grid.three{grid-template-columns:1fr}.filter-row{flex-wrap:wrap}.filter-row input{max-width:none}.exam-cards{grid-template-columns:1fr}.exam-header{padding:15px}.timer{min-width:112px;padding:7px 9px}.exam-header h1{font-size:20px}.paper-question{padding:15px;grid-template-columns:28px 1fr;gap:8px}.question-number span{width:25px;height:25px}.rule-grid{grid-template-columns:1fr 1fr 1fr;font-size:13px}.card{padding:17px}.submit-top{float:none;margin-bottom:12px}.button-row{width:100%}.button-row .button{flex:1}.login-card{padding:22px}}
@media(max-width:700px){.topbar nav a.nav-import{display:inline-flex;font-weight:700;color:#fff;padding:4px 6px;border:1px solid #4e718f;border-radius:5px}}
@media(min-width:701px) and (max-width:1200px){.topbar nav{gap:9px}.topbar nav a,.link-button{font-size:14px}.user-name{display:none}}
.button.danger{background:var(--red);color:#fff}.button.danger:hover{background:#8c241d}.danger-card{border-color:#f0b6b0;background:#fff9f8}.danger-note{color:#8c241d}.check-label{display:flex;align-items:center;gap:8px;font-weight:500}.check-label input{width:auto}
.site-footer{max-width:1120px;margin:0 auto;padding:0 20px 28px;color:var(--muted);font-size:13px;text-align:center}.site-footer span{color:#4b657b}