:root{--navy:#142a43;--ink:#18283b;--muted:#63748a;--line:#dce4ed;--canvas:#f2f5f9;--teal:#087e7d;--amber:#995007;--amber-bg:#fff4da;--blue:#24569e}*{box-sizing:border-box}body{margin:0;font:15px/1.6 "Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:var(--canvas)}[hidden]{display:none!important}button,input,select{font:inherit}button,.button{cursor:pointer;border:1px solid #cbd6e2;background:white;color:var(--ink);border-radius:7px;padding:9px 15px;text-decoration:none;display:inline-block}button:hover,.button:hover{border-color:var(--teal)}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #5cbdb4;outline-offset:3px}.primary{background:var(--teal);border-color:var(--teal);color:white}.primary:hover{background:#096b6a}a{color:var(--teal)}h1,h2,h3,p{margin-top:0}h1{font-size:29px;line-height:1.4;letter-spacing:-.4px}h2{font-size:20px}h3{font-size:17px}.muted{color:var(--muted);font-size:13px}.message{font-size:14px;color:#a23c2e;white-space:pre-line}.message:empty{display:none}label{display:flex;flex-direction:column;gap:5px;font-size:13px;color:#52647a}input,select{min-width:0;max-width:100%;padding:9px 10px;background:white;border:1px solid #ccd6e2;border-radius:6px;color:var(--ink)}.mark{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#b4e8df;color:#104e51;font-weight:bold;font-size:21px}.login-screen{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#e6edf5,#f7fafc)}.login-panel{width:min(440px,calc(100% - 32px));padding:38px;background:white;border:1px solid var(--line);border-radius:16px;box-shadow:0 16px 50px #142a4310}.login-panel .mark{margin-bottom:24px}.login-panel h1{font-size:28px;margin-bottom:10px}.login-panel label{margin-top:18px}.login-panel .primary{width:100%;margin:24px 0 12px}.sidebar{width:232px;position:fixed;inset:0 auto 0 0;background:var(--navy);color:#e4edf7;display:flex;flex-direction:column;padding:30px 20px}.brand{display:flex;gap:12px;align-items:center;margin-bottom:36px}.brand strong{display:block;font-size:17px}.brand small{display:block;color:#a7b9cd;font-size:12px;margin-top:3px}.sidebar nav{display:grid;gap:9px}.sidebar nav a,.sidebar nav button{padding:11px 13px;border:0;border-radius:7px;color:#ccdaea;text-decoration:none;background:none;text-align:left;font-size:14px}.sidebar nav .active{background:#264159;color:white;border-left:3px solid #76d7c8}.sidebar nav a:hover,.sidebar nav button:hover{background:#243e55}.sidebar-note{margin-top:auto;color:#a4b6ca;font-size:12px;line-height:1.9}.logout{margin-top:24px;background:none;color:#d4e0ee;border-color:#496078}main{margin-left:232px;max-width:1800px;padding:32px 34px 22px}.page-header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px}.page-header p{margin-bottom:6px}.page-header h1{margin:0}.filters{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr;gap:14px;padding:20px;background:white;border:1px solid var(--line);border-radius:10px;align-items:end}.filters .course-filter{grid-column:auto}.filters>button{min-height:42px}.summary{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin:24px 0;background:white;border:1px solid var(--line);border-radius:10px}.summary>div{padding:17px 20px;border-right:1px solid var(--line)}.summary>div:last-child{border:0}.summary small{display:block;color:var(--muted);font-size:12px}.summary strong{font-size:29px;line-height:1.6;color:var(--navy);font-weight:650}.summary .warning strong{color:var(--amber)}.summary .score strong{color:var(--teal)}.attention-banner{display:flex;align-items:center;gap:15px;text-align:left;width:100%;margin-bottom:24px;padding:18px 21px;background:var(--amber-bg);border:1px solid #efc678;color:var(--amber)}.attention-banner strong{display:block;font-size:17px}.attention-banner small{display:block;font-size:12px;color:#8c641d;margin-top:3px}.attention-banner>b{margin-left:auto;font-size:13px;white-space:nowrap}.attention-symbol{display:grid;place-items:center;border:2px solid #be7819;border-radius:50%;width:29px;height:29px;font-weight:bold;flex-shrink:0}.student-section{background:white;border:1px solid var(--line);border-radius:10px;overflow:hidden}.table-heading{display:flex;justify-content:space-between;align-items:center;padding:20px 23px;border-bottom:1px solid var(--line);gap:20px}.table-heading h2{margin:0 0 3px}.table-heading h2 span{font-size:14px;color:var(--muted);font-weight:normal}.table-heading p{margin:0}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left}th{background:#f7f9fc;color:#53667c;font-weight:normal;white-space:nowrap}td,th{padding:15px 17px;border-bottom:1px solid #e8edf3;vertical-align:middle}td{white-space:nowrap}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:#f7fbfc}tbody tr.attention-row{background:#fff8e9}.attention-row td:first-child{border-left:4px solid #d48a22;padding-left:13px}.student-name{font-weight:bold;font-size:14px}.subtext{display:block;color:var(--muted);font-size:12px}.status{font-size:12px;padding:4px 8px;border-radius:5px;display:inline-block;background:#edf1f6;color:#627285}.status.entered_idle{background:#fff0d1;color:#8f5710}.status.learning{background:#e8f0fc;color:#2a5d9e}.status.learning_completed{background:#def3ec;color:#146a52}.progress{min-width:135px}.progress span{font-size:12px}.progress-track{height:5px;background:#e7edf3;border-radius:4px;margin-top:7px;overflow:hidden}.progress-track i{display:block;height:100%;background:var(--teal)}.row-detail{border:0;color:var(--teal);background:none;padding:5px}.empty{text-align:center;padding:55px 20px}.empty p{color:var(--muted)}.interpretation{font-size:12px;color:var(--muted);line-height:1.9;margin:17px 2px}.upload{padding:17px;border:1px dashed #a3b6ca;border-radius:8px;margin:20px 0;gap:12px;background:#f6f9fb}.upload input{background:none;border:0;padding:0}dialog{width:min(940px,calc(100% - 28px));max-height:90vh;border:1px solid #bccada;border-radius:14px;padding:26px;color:var(--ink);box-shadow:0 24px 90px #0b1f4340}dialog::backdrop{background:#10223888}dialog header{display:flex;justify-content:space-between;gap:20px;align-items:start;border-bottom:1px solid var(--line);padding-bottom:14px}dialog header h2{margin-bottom:4px}dialog header p{font-size:13px;color:var(--muted);margin-bottom:0}dialog header>button{border:0;font-size:24px;line-height:1;padding:7px}dialog footer{display:flex;justify-content:flex-end;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}dialog h3{margin-top:24px}dialog .table-scroll{max-height:340px}dialog td{white-space:normal}.version-row{padding:12px 15px;background:#f3f7fa;border-radius:6px;margin:8px 0}.version-row b{font-size:13px}.version-row p{margin:3px 0;font-size:13px;color:var(--muted)}
@media(max-width:1250px){main{padding:25px 22px}.sidebar{width:205px;padding:25px 16px}main{margin-left:205px}.filters{grid-template-columns:repeat(3,minmax(0,1fr))}.filters .course-filter{grid-column:span 2}.summary>div{padding:15px 12px}.summary strong{font-size:24px}}
@media(max-width:800px){.sidebar{position:static;width:auto;padding:15px 18px;display:block}.brand{margin-bottom:14px}.sidebar nav{display:flex;flex-wrap:wrap;gap:3px}.sidebar nav a,.sidebar nav button{font-size:12px;padding:7px}.sidebar-note{display:none}.logout{position:absolute;right:16px;top:18px;margin:0;font-size:12px}.brand small{display:none}main{margin-left:0;padding:24px 16px}.page-header h1{font-size:23px}.page-header{align-items:start}.page-header button{font-size:13px;white-space:nowrap;padding:9px}.filters{grid-template-columns:repeat(2,minmax(0,1fr));padding:15px;gap:12px}.filters .course-filter{grid-column:span 2}.summary{grid-template-columns:repeat(3,1fr);gap:0}.summary>div{border-bottom:1px solid var(--line)}.summary strong{font-size:23px}.attention-banner{padding:14px;gap:10px}.attention-banner>b{display:none}.attention-banner strong{font-size:15px}.table-heading{padding:15px;align-items:start}.table-heading .button{font-size:12px;padding:8px;white-space:nowrap}dialog{padding:18px}.login-panel{padding:28px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}