:root{--navy:#102a43;--navy2:#173f5f;--brand:#247b7b;--brand2:#329c96;--bg:#f4f7f9;--text:#1f3443;--muted:#728595;--line:#e3eaee;--danger:#d85161;--success:#23825f;--shadow:0 18px 55px rgba(18,48,68,.09)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}button,input,textarea,select{font:inherit}[v-cloak]{display:none}.screen-center{height:100vh;display:flex;align-items:center;justify-content:center}.login-page{min-height:100vh;display:grid;grid-template-columns:1.08fr .92fr;background:#fff}.login-visual{position:relative;overflow:hidden;padding:80px;align-items:center;color:#fff;background:radial-gradient(circle at 75% 20%,rgba(73,184,172,.35),transparent 28%),linear-gradient(135deg,#102a43 0%,#173f5f 48%,#247b7b 100%)}.login-visual:after{content:"";position:absolute;width:460px;height:460px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-120px;bottom:-160px;box-shadow:0 0 0 55px rgba(255,255,255,.025),0 0 0 115px rgba(255,255,255,.02)}.login-copy{max-width:600px;position:relative;z-index:2}.brand-badge{width:64px;height:64px;border-radius:20px;background:rgba(255,255,255,.13);display:flex;align-items:center;justify-content:center;font-size:27px;margin-bottom:34px}.login-copy>span,.eyebrow{font-size:11px;letter-spacing:.17em;font-weight:900;color:#7e93a3}.login-copy>span{color:#a7d9d5}.login-copy h1{font-size:58px;line-height:1.08;font-weight:900;margin:12px 0 22px}.login-copy p{color:rgba(255,255,255,.7);font-size:16px;line-height:1.8;max-width:530px}.login-points{display:flex;gap:22px;flex-wrap:wrap;margin-top:32px}.login-points span{font-size:13px;color:#d7ebe9}.login-points i{margin-right:6px;color:#8fd1cb}.login-form-wrap{display:flex;align-items:center;justify-content:center;padding:40px}.login-card{width:min(430px,100%)}.mobile-brand{width:54px;height:54px;background:var(--navy);color:white;border-radius:17px;align-items:center;justify-content:center;font-size:23px;margin-bottom:25px}.login-card h2{font-size:31px;font-weight:900;margin:8px 0}.login-card>p{color:var(--muted);margin-bottom:30px}.login-card label{font-size:12px;font-weight:800;margin:12px 0 7px}.input-icon{position:relative}.input-icon i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#90a0ab}.input-icon input{padding-left:42px;height:50px}.login-tip{font-size:11px;color:#94a2ab;text-align:center;margin-top:18px;line-height:1.7}.login-tip code{color:#547585}.btn-brand{background:linear-gradient(135deg,var(--brand),var(--brand2));border:0;color:#fff!important;border-radius:11px;box-shadow:0 8px 20px rgba(36,123,123,.16)}.btn-brand:hover{filter:brightness(.96)}.btn-soft{background:#f1f5f6;border:1px solid #e0e8eb;color:#46616f;border-radius:10px}.topbar{height:68px;position:fixed;left:0;right:0;top:0;z-index:1000;background:rgba(16,42,67,.97);display:flex;align-items:center;justify-content:space-between;padding:0 22px;color:white;box-shadow:0 6px 25px rgba(11,34,51,.12)}.brand{display:flex;align-items:center;gap:11px;cursor:pointer}.brand-icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#319795,#79c6bd);display:flex;align-items:center;justify-content:center}.brand>span:last-child{display:flex;flex-direction:column}.brand b{font-size:14px}.brand small{font-size:9px;color:#9fb2c2;letter-spacing:.12em}.top-actions{display:flex;gap:14px;align-items:center}.admin-user{font-size:12px;color:#c7d5df}.icon-button{border:0;background:rgba(255,255,255,.08);color:white;width:36px;height:36px;border-radius:10px}.sidebar{position:fixed;top:68px;left:0;bottom:0;width:220px;background:#fff;border-right:1px solid var(--line);padding:24px 14px;z-index:900}.sidebar nav{width:100%}.sidebar button{width:100%;height:44px;border:0;background:transparent;border-radius:12px;display:flex;align-items:center;gap:12px;padding:0 13px;color:#66808f;margin-bottom:5px;text-align:left}.sidebar button i{font-size:16px}.sidebar button.active{background:#eaf5f3;color:#236c6c;font-weight:800}.nav-label{font-size:10px;color:#a2afb7;letter-spacing:.12em;padding:22px 12px 8px}.main{padding-top:68px;min-height:100vh}.main.has-sidebar{margin-left:220px}.page-wrap,.content-wrap{max-width:1440px;margin:0 auto;padding:34px 36px}.page-head,.workspace-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:25px}.page-head h1,.workspace-head h1{font-size:30px;font-weight:900;margin:4px 0 7px}.page-head p,.workspace-head p{color:var(--muted);font-size:13px;margin:0}.hero-admin{min-height:205px;border-radius:24px;padding:32px 38px;color:#fff;background:linear-gradient(120deg,#102a43,#1c5870 58%,#247b7b);display:flex;align-items:center;justify-content:space-between;margin-bottom:30px;overflow:hidden;position:relative}.hero-admin span{font-size:11px;letter-spacing:.14em;color:#9ed6d1}.hero-admin h2{font-size:29px;font-weight:900;margin:7px 0 10px}.hero-admin p{max-width:720px;color:rgba(255,255,255,.7);font-size:14px;line-height:1.7;margin:0}.hero-symbol{font-size:80px;color:rgba(255,255,255,.12);padding-right:30px}.activity-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.activity-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:21px;box-shadow:0 8px 24px rgba(20,52,72,.035);transition:.2s}.activity-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.card-top{display:flex;justify-content:space-between}.status{font-size:10px;font-weight:900;border-radius:999px;padding:5px 9px}.status.on{background:#e4f3ec;color:#237c5a}.status.off{background:#eef1f3;color:#7d8a92}.more{border:0;background:#f5f7f8;border-radius:9px;width:32px;height:32px;color:#73858f}.activity-card h3{font-size:19px;font-weight:900;margin:15px 0 8px}.activity-card>p{height:40px;color:#7d8d98;font-size:12px;line-height:1.7;overflow:hidden}.activity-stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin:15px 0}.activity-stats div{text-align:center;border-right:1px solid var(--line)}.activity-stats div:last-child{border:0}.activity-stats b{display:block;font-size:18px}.activity-stats small{font-size:9px;color:#8d9ba4}.front-link{display:flex;align-items:center;gap:7px;background:#f6f9fa;border:1px solid #e9eef0;border-radius:12px;padding:9px 10px}.front-link>div{display:flex;flex-direction:column;flex:1;min-width:0}.front-link small{font-size:9px;color:#91a0aa}.front-link code{color:#326874;font-size:12px;font-weight:800}.front-link button,.front-link a{width:30px;height:30px;border:0;background:white;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#5f7887;text-decoration:none}.manage-btn{width:100%;border:0;background:transparent;color:#2b7777;font-weight:800;font-size:12px;padding-top:16px;display:flex;justify-content:space-between}.workspace-head{max-width:1440px;margin:0 auto;padding:28px 36px 18px;border-bottom:1px solid var(--line)}.front-entry{display:flex;align-items:center;gap:8px}.front-entry>span{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:11px;padding:7px 12px}.front-entry small{font-size:9px;color:#8a99a3}.front-entry code{font-size:11px;color:#2a7071;font-weight:800}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:18px}.summary{background:#fff;border:1px solid var(--line);border-radius:16px;padding:17px;display:flex;align-items:center;gap:13px}.summary>i{width:43px;height:43px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:18px}.summary .blue{background:#eaf1fa;color:#3975ad}.summary .green{background:#e4f4ec;color:#2b815f}.summary .orange{background:#fff0df;color:#b87425}.summary span{display:flex;flex-direction:column}.summary small{font-size:10px;color:#8797a1}.summary b{font-size:23px}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.panel-head{padding:15px 17px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;align-items:center}.seg{display:flex;background:#f3f6f7;border-radius:10px;padding:3px}.seg button{border:0;background:transparent;border-radius:8px;padding:7px 14px;font-size:11px;color:#728590}.seg button.active{background:white;color:#2b7475;font-weight:900;box-shadow:0 2px 8px rgba(20,50,70,.07)}.panel-actions{display:flex;gap:7px}.admin-table{margin:0}.admin-table th{font-size:10px;letter-spacing:.05em;color:#81919b;background:#fbfcfc;padding:13px 16px;border-bottom:1px solid var(--line);white-space:nowrap}.admin-table td{font-size:12px;padding:14px 16px;border-color:#edf1f3}.admin-table td:first-child{min-width:300px}.admin-table td>strong{display:block;color:#263e4c}.admin-table td>small{display:block;color:#8c99a1;font-size:10px;margin-top:4px}.admin-table tr.muted{background:#fbfbfb;color:#9aa5ab}.pill{font-size:10px;border-radius:999px;padding:5px 8px;font-weight:800}.pill.required{background:#e8f2f9;color:#34709c}.pill.risk{background:#fff0e2;color:#b06e25}.score-plus{color:#25815e}.score-minus{color:#cf4e5e}.used{font-size:10px;border-radius:999px;padding:5px 8px}.used.no{background:#e5f4ec;color:#287e5d}.used.yes{background:#eef0f2;color:#7f8c94}.table-btn{border:0;background:#f3f6f7;color:#647986;width:31px;height:31px;border-radius:8px;margin-left:4px}.table-btn.danger{color:#c85563}.table-btn:disabled{opacity:.35}.search{position:relative}.search i{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:#91a0a9}.search input{border:1px solid var(--line);border-radius:10px;height:36px;padding:0 12px 0 34px;min-width:250px;outline:0}.person{display:flex;gap:10px;align-items:center}.person>span{width:36px;height:36px;border-radius:12px;background:#e8f3f2;color:#267172;display:flex;align-items:center;justify-content:center;font-weight:900}.person div{display:flex;flex-direction:column}.person small{margin:0!important}.big-score{font-size:18px;color:#276d6f}.score-hero{border-radius:20px;background:linear-gradient(120deg,#102a43,#247b7b);color:#fff;padding:25px 29px;display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.score-hero span{font-size:10px;letter-spacing:.15em;color:#a6d7d3}.score-hero h2{font-size:24px;font-weight:900;margin:4px 0}.score-hero p{font-size:12px;color:rgba(255,255,255,.68);margin:0}.rank-grid{background:#fff;border:1px solid var(--line);border-radius:18px;padding:8px 15px}.rank-row{display:grid;grid-template-columns:50px 1fr 130px 100px;align-items:center;gap:12px;padding:14px 8px;border-bottom:1px solid var(--line)}.rank-row:last-child{border:0}.rank-no{width:33px;height:33px;border-radius:10px;background:#f0f3f4;display:flex;align-items:center;justify-content:center;font-weight:900;color:#667a86}.rank-no.r1{background:#fff3cf;color:#a57818}.rank-no.r2{background:#edf1f3;color:#687781}.rank-no.r3{background:#f7e9e0;color:#9d6343}.rank-person{display:flex;flex-direction:column}.rank-person small{font-size:10px;color:#8a9aa3}.rank-row>strong{font-size:22px;color:#256d6f}.rank-row>strong small{font-size:11px}.empty,.empty-row{text-align:center;color:#8d9aa2}.empty{background:#fff;border:1px dashed #d7e0e4;border-radius:20px;padding:55px}.empty i{font-size:38px;color:#9ab0bb}.empty h3{font-size:18px;font-weight:900;margin-top:10px}.empty p{font-size:12px}.empty-row{padding:40px!important}.notice{position:fixed;top:82px;right:20px;z-index:2000;color:#fff;border-radius:12px;padding:11px 14px;box-shadow:0 12px 30px rgba(0,0,0,.14);font-size:12px}.notice.success{background:#267c62}.notice.error{background:#b94958}.notice i{margin-right:7px}.pretty{border:0;border-radius:19px;overflow:hidden;box-shadow:0 25px 80px rgba(19,45,62,.2)}.pretty .modal-header{padding:18px 20px}.pretty .modal-body{padding:20px}.pretty .modal-footer{padding:12px 20px;background:#fafcfc}.modal-title{font-weight:900}.form-control,.form-select,.input-group-text{border-color:#dfe7eb;border-radius:10px}.option-editor{background:#f7fafb;border:1px solid #e6ecef;border-radius:14px;padding:13px}.option-line{display:grid;grid-template-columns:60px 1fr 78px 36px;gap:7px;margin-top:8px}.option-line .key{text-align:center;font-weight:900}.correct{border-radius:9px;background:#edf1f2;color:#7d8d96;display:flex;align-items:center;justify-content:center;gap:4px;font-size:10px;cursor:pointer}.correct input{display:none}.correct.active{background:#def2e8;color:#257b59;font-weight:800}.judge{display:flex;gap:10px}.judge button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 25px;color:#73858f}.judge button.active{background:#e8f4f2;border-color:#8ebebc;color:#24706f}.template-box{display:flex;align-items:center;gap:11px;border:1px solid var(--line);background:#f7fafb;border-radius:13px;padding:13px;color:#345966;text-decoration:none}.template-box>i:first-child{font-size:25px;color:#27805b}.template-box span{display:flex;flex-direction:column}.template-box small{font-size:10px;color:#8a99a2}.upload-box{margin-top:14px;min-height:145px;border:2px dashed #cad9de;background:#fbfdfd;border-radius:15px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#718892;cursor:pointer}.upload-box input{display:none}.upload-box>i{font-size:31px}.upload-box small{font-size:10px}.import-result{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin-top:13px}.import-result>div{background:#f4f7f8;border-radius:10px;padding:9px;text-align:center}.import-result small{display:block;font-size:9px;color:#8b99a2}.import-result b{font-size:19px}.import-result ul{grid-column:1/-1;background:#fff1f2;color:#a34e58;border-radius:10px;padding:10px 25px;font-size:10px;max-height:110px;overflow:auto}.attempt{display:grid;grid-template-columns:40px 1fr 70px 100px;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}.attempt>span{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center}.attempt>span.correct{background:#e3f3eb;color:#287e5c}.attempt>span.wrong{background:#fae8eb;color:#c74d5c}.attempt>div{display:flex;flex-direction:column}.attempt small{font-size:9px;color:#8b99a2}.attempt>strong{text-align:right}.attempt>em{font-size:10px;color:#87969f;font-style:normal;text-align:right}.mobile-tabs{background:#fff;border-bottom:1px solid var(--line);padding:8px 18px;display:flex;gap:7px;position:sticky;top:68px;z-index:700}.mobile-tabs button{flex:1;border:0;background:#f3f6f7;border-radius:9px;padding:8px;color:#71838e;font-size:11px}.mobile-tabs button.active{background:#e5f3f1;color:#266f6f;font-weight:900}.mobile-back{border:0;background:#eef3f5;width:34px;height:34px;border-radius:10px;margin-bottom:8px}
@media(max-width:1199px){.activity-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:991px){.login-page{display:block}.login-form-wrap{min-height:100vh}.mobile-brand{display:flex}.main.has-sidebar{margin-left:0}.page-wrap,.content-wrap{padding:24px 20px}.workspace-head{padding:22px 20px 15px}.activity-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:767px){.topbar{height:62px}.main{padding-top:62px}.page-head,.workspace-head{display:block}.page-head .btn{margin-top:15px;width:100%}.hero-admin{padding:25px 22px}.hero-admin h2{font-size:23px}.hero-symbol{display:none}.activity-grid{grid-template-columns:1fr}.front-entry{margin-top:13px;display:grid;grid-template-columns:1fr 1fr}.front-entry>span{grid-column:1/-1}.summary-grid{grid-template-columns:1fr 1fr}.summary-grid .summary:last-child{grid-column:1/-1}.panel-head{display:block}.seg{margin-bottom:10px}.panel-actions{display:grid;grid-template-columns:1fr 1fr}.panel-actions .btn:last-child{grid-column:1/-1}.search input{width:100%;min-width:0;margin-bottom:10px}.rank-row{grid-template-columns:42px 1fr 80px}.rank-row .btn{grid-column:2/-1}.score-hero{display:block}.score-hero .btn{margin-top:14px}.attempt{grid-template-columns:38px 1fr 55px}.attempt>em{grid-column:2/-1;text-align:left}.import-result{grid-template-columns:1fr 1fr}}@media(max-width:430px){.summary-grid{grid-template-columns:1fr}.summary-grid .summary:last-child{grid-column:auto}.activity-stats b{font-size:16px}.option-line{grid-template-columns:48px 1fr 64px 34px}.login-form-wrap{padding:24px}.workspace-head h1,.page-head h1{font-size:26px}}

/* v3.1.0 管理员数据库安全 */
.setup-card{max-width:460px}.setup-card .alert{border:0;border-radius:12px}.security-hero{display:flex;align-items:center;gap:16px;background:linear-gradient(120deg,#102a43,#1f6874);color:#fff;border-radius:20px;padding:20px 24px;margin-bottom:18px;box-shadow:0 14px 35px rgba(18,54,70,.08)}.security-icon{width:54px;height:54px;flex:0 0 54px;border-radius:16px;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;font-size:24px}.security-hero>div:nth-child(2){flex:1}.security-hero b{font-size:16px}.security-hero p{margin:5px 0 0;color:rgba(255,255,255,.72);font-size:12px;line-height:1.65}.security-hero code{color:#c9f3ee}.security-badge{font-size:10px;letter-spacing:.08em;background:rgba(255,255,255,.12);padding:7px 10px;border-radius:999px;color:#d8f0ee;white-space:nowrap}.self-tag{font-style:normal;font-size:9px;color:#247473;background:#e5f3f1;border-radius:999px;padding:3px 6px;margin-left:5px}.admin-code{background:#f3f7f8;color:#2b6f75;border-radius:7px;padding:4px 7px;font-weight:800}.password-note{display:flex;gap:9px;align-items:flex-start;background:#f1f7f6;color:#55747a;border:1px solid #deebea;border-radius:12px;padding:11px 12px;font-size:11px;line-height:1.6}.password-note i{color:#287b72;font-size:16px}.password-note code{color:#2a706f}@media(max-width:767px){.security-hero{align-items:flex-start}.security-badge{display:none}.page-head .d-flex .btn{width:auto;margin-top:0;flex:1}.admin-table td:first-child{min-width:220px}}

/* v3.2.2 选手答题明细：同时展示选手答案与正确答案 */
.attempt .attempt-main{display:flex;flex-direction:column;gap:10px;min-width:0}
.attempt .attempt-title{display:flex;flex-direction:column;min-width:0}
.attempt .attempt-title>b{font-size:13px;line-height:1.65;color:#263f4d}
.attempt .attempt-title>small{font-size:9px;color:#8b99a2;margin-top:2px}
.attempt-answers{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.answer-line{border:1px solid #e1e8eb;background:#f8fafb;border-radius:10px;padding:8px 10px;display:flex!important;flex-direction:column!important;gap:3px;min-width:0}
.answer-line>span{font-size:9px;font-weight:900;color:#8797a0;letter-spacing:.04em}
.answer-line>b{font-size:11px;line-height:1.55;font-weight:800;word-break:break-word}
.answer-line.answer-ok{background:#edf8f3;border-color:#d3ebdf}.answer-line.answer-ok>b{color:#237759}
.answer-line.answer-bad{background:#fff3f4;border-color:#f1d9dd}.answer-line.answer-bad>b{color:#b84c5a}
.answer-line.standard{background:#eef6f8;border-color:#d9e8ec}.answer-line.standard>b{color:#285f70}
@media(max-width:767px){.attempt-answers{grid-template-columns:1fr}.attempt .attempt-title>b{font-size:12px}.answer-line>b{font-size:10px}}