@charset "UTF-8";
:root{--navy:#0f172a;--deep:#07111f;--ink:#18263a;--muted:#5b6c82;--line:#dbe3ee;--page:#f3f6fa;--card:#fff;--blue:#225cc2;--success:#18734d;--brick:#9d5d4d;--radius:16px;--danger:#af2838}
*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--ink);font:15px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}button,input,select{font:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer;min-height:44px;border:0;border-radius:9px;padding:10px 16px;line-height:1.4}button:disabled{opacity:.5;cursor:not-allowed}a{color:#245ea8;text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #508ff0;outline-offset:3px}button:hover:not(:disabled){filter:brightness(.96)}h1,h2,h3,h4,p{margin:0}h1{font-size:32px;line-height:1.5;letter-spacing:-.7px}h2{font-size:21px;line-height:1.5}h3{font-size:17px;line-height:1.5}h4{font-size:15px}p+p{margin-top:10px}[hidden]{display:none!important}.skip{position:absolute;top:-80px;left:16px;z-index:20;background:#fff;padding:9px 16px}.skip:focus{top:10px}.primary{background:var(--blue);color:#fff;font-weight:600}.secondary{background:#e8effd;color:#214c99;border:1px solid #c5d6f4;font-weight:600}.quiet{background:#fff;color:var(--muted);border:1px solid var(--line)}.muted,.small-note{color:var(--muted)}.small-note{font-size:12px;line-height:1.8}.eyebrow{color:#596f8f;letter-spacing:1.8px;font-size:12px;font-weight:650}.topbar{min-height:84px;background:var(--navy);color:#fff;display:flex;align-items:center;gap:24px;padding:18px 32px;border-bottom:1px solid #2c3f59}.brand{display:flex;align-items:center;gap:13px;color:#fff;text-decoration:none;font-size:19px;line-height:1.4;font-weight:700;min-width:0}.brand img{flex:none;width:48px;height:48px;object-fit:contain;background:#fff;border-radius:50%;padding:4px}.brand-sub{display:block;color:#b5c5da;font-size:12px;font-weight:400;margin-top:4px;letter-spacing:.8px}.top-link{margin-left:auto;flex:none;color:#d8e3f0;text-decoration:none;border:1px solid #3a4b66;border-radius:9px;padding:7px 13px}.site-return{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1280px;margin:auto;padding:13px 30px;color:var(--muted);font-size:12px}.page{max-width:1280px;min-height:calc(100vh - 210px);padding:26px 30px 45px;margin:auto}.login-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);border:1px solid #d1d9e7;border-radius:24px;background:#fff;overflow:hidden;box-shadow:0 16px 48px #152b4710;margin:28px auto;max-width:1080px}.login-intro{position:relative;padding:60px 46px;background:linear-gradient(135deg,#eaf0f9,#f7f9fc);border-top:5px solid var(--brick)}.login-intro h1{margin:17px 0 20px}.login-intro>p:not(.eyebrow){color:var(--muted);max-width:420px}.learning-path{display:flex;flex-wrap:wrap;gap:13px;align-items:center;margin-top:34px;font-size:13px}.learning-path span{padding:8px 16px;border:1px solid #c2d2e7;background:#ffffffb3;border-radius:8px;color:#315681}.learning-path i{font-style:normal;color:#8caaad}.login-card{padding:55px 38px;align-self:center}.login-card h2{margin:8px 0}.login-card label{display:block;margin:22px 0 8px;font-weight:600;font-size:13px}.login-card input{width:100%;height:48px;padding:10px 13px;border:1px solid #b9cbe1;border-radius:9px;background:#fff;min-width:0}.login-card .primary{width:100%;margin-top:18px}.login-card .small-note{margin-top:15px}.message{font-size:13px;color:#486185;min-height:24px;margin:14px 0;overflow-wrap:anywhere}.message.error{color:var(--danger)}.page-heading{display:flex;justify-content:space-between;gap:22px;align-items:flex-start}.page-heading .eyebrow{margin-bottom:8px}.page-heading p:not(.eyebrow){margin-top:8px;color:var(--muted)}.page-heading button{flex:none;margin-top:6px}.evidence-note{margin-top:24px;padding:15px 18px;border:1px solid #ccdaec;border-left:4px solid #487ec2;border-radius:10px;background:#eaf0f9;color:#3d577a;font-size:13px}.toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-top:28px}.class-field{min-width:230px;max-width:100%}.class-field label{display:block;font-weight:600;font-size:13px;margin-bottom:6px}.class-field select{width:100%;min-height:46px;border:1px solid #c0cfe0;border-radius:9px;padding:8px 34px 8px 13px;background:#fff;color:var(--ink)}.toolbar .secondary{margin-left:auto}.stats{display:grid;grid-template-columns:1fr 1fr 1.3fr;gap:14px;margin:22px 0}.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 19px;min-width:0}.stat-value{font-size:25px;font-weight:700;line-height:1.5;color:#294f82;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.stat:last-child .stat-value{font-size:18px;margin:3px 0 5px}.stat-label{font-size:12px;color:var(--muted)}.records-host{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:auto;max-width:100%}.empty{text-align:center;padding:55px 24px;max-width:620px;margin:auto}.empty-symbol{display:inline-grid;place-items:center;width:58px;height:58px;background:#edf2fb;border:1px solid #d0ddf0;border-radius:16px;color:#4876b5;font:700 24px/1 monospace;margin-bottom:18px}.empty h2{font-size:18px}.empty p{color:var(--muted);font-size:13px;margin-top:9px}.record-table{width:100%;border-collapse:collapse;font-size:13px;min-width:1050px}.record-table th{background:#f0f4fa;color:#425b7b;text-align:left;font-size:12px;white-space:nowrap;font-weight:600}.record-table th,.record-table td{padding:15px 12px;border-bottom:1px solid #e5ebf2;vertical-align:middle}.record-table tr:last-child td{border-bottom:0}.record-table td{font-variant-numeric:tabular-nums}.record-table td:first-child{font-weight:700;color:#223f64}.record-table .updated-cell{font-size:12px;color:var(--muted);max-width:160px;overflow-wrap:anywhere}.record-table td:last-child{width:118px}.view-record{font-size:12px;white-space:nowrap;min-height:38px;padding:8px 11px}.copy-note{display:block;font-size:10px;font-weight:400;margin-top:5px;color:#876749;white-space:normal;line-height:1.5}.table-note{margin-top:14px}.site-footer{padding:23px 24px;text-align:center;border-top:1px solid #d6e2e8;color:#64788c;font-size:11px;background:linear-gradient(180deg,#edf4f7,#f4f7fa)}dialog{padding:0;border:1px solid #d0daea;border-radius:18px;background:#f5f7fb;color:var(--ink);width:min(1060px,calc(100% - 30px));max-height:calc(100dvh - 30px);box-shadow:0 24px 100px #07111f50}dialog[open]{display:flex;flex-direction:column}dialog::backdrop{background:#07111fb3;backdrop-filter:blur(3px)}.dialog-heading{display:flex;justify-content:space-between;gap:18px;padding:22px 26px;background:#fff;border-bottom:1px solid var(--line);flex:none}.dialog-heading .eyebrow{margin-bottom:6px}.dialog-heading h2{font-size:22px}.dialog-heading .muted{font-size:12px;margin-top:8px}.dialog-heading button{flex:none;align-self:flex-start}.dialog-body{padding:24px 26px;overflow-y:auto;overscroll-behavior:contain;min-height:160px}.dialog-body>.evidence-note{margin:0 0 22px}.detail-section{margin:25px 0}.detail-section>h3{margin-bottom:13px}.lesson-detail,.lab-detail{border:1px solid var(--line);background:#fff;border-radius:12px;margin-top:10px;overflow:hidden}.lesson-detail>summary,.lab-detail>summary{display:flex;gap:10px;align-items:flex-start;cursor:pointer;list-style:none;padding:15px 18px}.lesson-detail>summary::-webkit-details-marker,.lab-detail>summary::-webkit-details-marker{display:none}.lesson-detail>summary::after,.lab-detail>summary::after{content:"＋";margin-left:auto;color:#6684a9}.lesson-detail[open]>summary::after,.lab-detail[open]>summary::after{content:"−"}.detail-index{flex:none;font:600 12px/1.5 monospace;color:#6884a7;margin-top:3px;min-width:25px}.summary-title{display:block;font-weight:650;font-size:14px}.summary-meta{display:block;font-size:11px;color:var(--muted);font-weight:400;margin-top:4px}.detail-content{border-top:1px solid #e7ecf4;padding:18px}.detail-content h4{margin-top:24px;margin-bottom:9px}.detail-content h4:first-child{margin-top:0}.text-block{margin-top:12px;min-width:0}.text-block>p:first-child{font-size:12px;font-weight:650;color:#516b8c;margin-bottom:7px}.text-value{background:#f3f6fa;border:1px solid #e2e8f1;border-radius:8px;padding:11px 13px;white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px;line-height:1.75}.text-value.code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:12px;tab-size:4;overflow-x:auto;max-height:450px}.step-list,.quiz-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}.step-item,.quiz-item{border:1px solid #dce5f0;border-radius:9px;padding:13px 14px}.step-title,.quiz-title{font-weight:600;font-size:13px}.step-prompt,.quiz-prompt{margin-top:7px;color:var(--muted);font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere}.step-meta{display:block;color:#536c8d;font-size:11px;margin-top:5px}.choice-result{font-size:12px;margin-top:9px;white-space:pre-wrap;overflow-wrap:anywhere}.choice-result.correct{color:var(--success)}.choice-result.incorrect{color:#9c4350}.self-checks{padding-left:22px;font-size:13px;color:#4c6380}.self-checks li{margin:7px 0}.read-note{font-size:12px;color:var(--muted);margin-top:10px}.detail-status{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;margin-bottom:12px}.detail-status span{padding:4px 9px;border-radius:7px;border:1px solid #d3dfeb;background:#eef3f9}.portfolio-content{padding:20px;border:1px solid var(--line);border-radius:12px;background:#fff}.case-detail{margin-top:12px;border:1px solid #dce5f0;border-radius:9px;padding:10px 13px}.case-detail>summary{font-size:12px;font-weight:600;cursor:pointer;padding:4px 0}.loading{text-align:center;padding:48px 20px;color:var(--muted);font-size:14px}
@media(max-width:900px){.login-intro{padding:46px 30px}.login-card{padding:42px 28px}.login-intro h1{font-size:28px}.topbar{padding:16px 24px}.brand-sub{letter-spacing:0}.page{padding:22px 24px 36px}.site-return{padding-inline:24px}.stats{grid-template-columns:1fr 1fr}.stat:last-child{grid-column:1/-1}.toolbar .secondary{margin-left:0}}
@media(max-width:680px){.topbar{padding:16px;gap:12px;align-items:flex-start}.brand{font-size:17px;gap:10px}.brand img{width:42px;height:42px}.brand-sub{font-size:10px;line-height:1.7;margin-top:5px}.top-link{font-size:11px;padding:6px 9px;white-space:nowrap}.site-return{padding:12px 16px;font-size:11px}.page{padding:14px 16px 30px}.login-layout{display:block;margin:12px 0;border-radius:17px}.login-intro{padding:30px 25px;border-top-width:4px}.login-intro h1{font-size:25px;margin:12px 0 15px}.login-intro>p:not(.eyebrow){font-size:13px}.learning-path{margin-top:22px;gap:10px}.learning-path span{padding:5px 12px}.login-card{padding:28px 25px 32px}.page-heading h1{font-size:26px}.page-heading p:not(.eyebrow){font-size:13px}.page-heading{gap:14px}.page-heading button{font-size:12px;padding:9px 11px}.evidence-note{padding:13px 14px;font-size:12px}.toolbar{gap:9px;margin-top:22px}.class-field{width:100%;max-width:none;min-width:0}.toolbar>button{flex:1;font-size:12px;padding:10px}.stats{gap:10px;margin:18px 0}.stat{padding:13px 14px}.stat-value{font-size:24px}.record-table{min-width:0;display:block}.record-table thead{display:none}.record-table tbody{display:block}.record-table tr{display:grid;grid-template-columns:1fr 1fr;gap:0;padding:14px 15px;border-bottom:1px solid var(--line)}.record-table tr:last-child{border-bottom:0}.record-table td{display:block;padding:8px 0;border:0;font-size:13px;min-width:0}.record-table td::before{content:attr(data-label);display:block;font-size:11px;color:#6a7d96;font-weight:400;margin-bottom:2px}.record-table td:first-child{grid-column:1/-1;font-size:17px;padding-bottom:10px;border-bottom:1px solid #edf1f7;display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:7px}.record-table td:first-child::before{display:none}.copy-note{display:inline;font-size:11px;margin:0}.record-table .updated-cell{grid-column:1/-1;max-width:none;display:flex;gap:12px;align-items:baseline;flex-wrap:wrap;font-size:12px}.record-table td:last-child{grid-column:1/-1;width:auto;padding-bottom:2px}.record-table td:last-child::before{display:none}.view-record{width:100%;min-height:42px;font-size:13px}.table-note{font-size:11px}dialog{width:calc(100% - 20px);max-height:calc(100dvh - 20px);border-radius:13px}.dialog-heading{padding:17px 15px;gap:10px}.dialog-heading h2{font-size:17px}.dialog-heading .muted{font-size:11px}.dialog-heading button{font-size:11px;padding:8px 10px;min-height:38px}.dialog-body{padding:18px 14px}.lesson-detail>summary,.lab-detail>summary{padding:13px 12px;gap:7px}.summary-title{font-size:13px}.summary-meta{font-size:10px;line-height:1.9}.detail-content{padding:14px 12px}.text-value{padding:9px 10px;font-size:12px}.step-item,.quiz-item{padding:11px}.portfolio-content{padding:14px}.empty{padding:38px 18px}.site-footer{font-size:10px;padding:20px 16px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important}}