:root{font-family:Inter,"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:#263446;background:#f1f5fa;font-size:14px;font-synthesis:none;--blue:#1677ff;--border:#e9edf3;--muted:#8290a3;--nav:#1c293b}
*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer;background:white;border:1px solid #dfe5ee;border-radius:5px;padding:8px 14px;color:#344256;white-space:nowrap}button:hover{border-color:var(--blue);color:var(--blue)}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--blue);color:white;border-color:var(--blue)}button.primary:hover{background:#0967e8}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}input,select,textarea{border:1px solid #dfe5ee;border-radius:5px;padding:9px 11px;color:#334155;background:white;min-width:0;max-width:100%}input::placeholder,textarea::placeholder{color:#a4afbf}input:focus,select:focus,textarea:focus{border-color:var(--blue);outline:2px solid #e1efff}button:focus-visible,a:focus-visible{outline:3px solid #93c5fd;outline-offset:3px}textarea{resize:vertical;min-height:90px}input[type=checkbox]{accent-color:var(--blue);width:16px;height:16px}h1,h2,h3,p{margin-top:0}.muted{color:var(--muted)}.small{font-size:12px}.loading{padding:70px;text-align:center;color:var(--muted)}.error-text{color:#c92b43;font-size:13px;line-height:1.6}.link{border:0;background:none;color:var(--blue);padding:3px 5px}.danger{color:#cc4054}.tag{display:inline-flex;align-items:center;gap:5px;background:#ecf5ff;color:#1677ff;border-radius:4px;padding:3px 7px;font-size:12px;white-space:nowrap}.tag.green{color:#19825b;background:#eaf7f0}.tag.gray{color:#7a8798;background:#f0f2f5}.tag.amber{color:#b77911;background:#fff5df}.dot{width:5px;height:5px;border-radius:50%;background:currentColor;display:inline-block}.nowrap{white-space:nowrap}
.topbar{height:60px;position:fixed;inset:0 0 auto;z-index:10;background:var(--nav);display:flex;align-items:center;padding:0 22px;gap:28px;color:white;box-shadow:0 1px 5px #18223822}.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:650;white-space:nowrap}.logo{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(140deg,#499eff,#1667e9);font-size:19px;color:white;box-shadow:0 0 0 3px #ffffff0c}.topnav{display:flex;align-items:center;gap:9px;height:100%}.topnav a{color:#cfdaea;padding:9px 16px;border-radius:5px;font-weight:500;white-space:nowrap}.topnav a.active{color:white;background:#354c6b}.topnav a:hover{background:#2b3e58;text-decoration:none}.top-right{margin-left:auto;display:flex;align-items:center;gap:13px}.edition{color:#9eb3cd;font-size:12px;border:1px solid #46586f;padding:4px 8px;border-radius:4px}.account{color:#e1e8f1;background:transparent;border-color:#41536a;font-size:12px}.top-right .link{color:#b9cbe1;font-size:12px}.sidebar{position:fixed;top:60px;left:0;bottom:0;width:160px;background:#f8fafc;border-right:1px solid #e9edf3;padding:21px 12px;display:flex;flex-direction:column}.sidebar h2{font-size:14px;margin:3px 10px 20px}.sidebar a{display:flex;align-items:center;gap:11px;color:#576577;padding:12px 10px;border-radius:5px;margin-bottom:5px;white-space:nowrap;font-size:13px}.sidebar a:hover{background:#edf3fb;text-decoration:none}.sidebar a.active{background:#e7f1ff;color:var(--blue);font-weight:600}.navicon{width:18px;font-size:17px;text-align:center;font-weight:400}.sidebar-foot{margin-top:auto;border-top:1px solid var(--border);padding:16px 9px 3px;line-height:1.8;font-size:11px;color:#95a1b0}.online{color:#3a9c7b}.main{margin:60px 0 0 160px;padding:22px;min-height:calc(100vh - 60px)}.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:19px;gap:15px}.page-head h1{font-size:20px;font-weight:650;margin:0 0 6px}.page-head p{font-size:12px;color:var(--muted);margin:0}.panel{background:white;border:1px solid #e9eef5;border-radius:7px;min-height:calc(100vh - 179px);box-shadow:0 2px 7px #16305d02}.tabs{display:flex;gap:27px;padding:0 20px;border-bottom:1px solid var(--border);height:51px;align-items:center}.tabs button,.tabs a{display:flex;align-items:center;height:100%;border:0;background:transparent;border-radius:0;color:#64748b;padding:0 1px;font-size:13px}.tabs .active{color:var(--blue);border-bottom:2px solid var(--blue)}.panel-body{padding:20px}.filters{display:flex;align-items:end;gap:18px;flex-wrap:wrap;margin-bottom:19px}.filters label{display:flex;align-items:center;gap:9px;white-space:nowrap;font-size:12px;flex:1;min-width:210px}.filters input,.filters select{flex:1;width:150px;padding:8px 10px}.toolbar{display:flex;align-items:center;gap:9px;margin-bottom:17px;flex-wrap:wrap}.toolbar button,.toolbar a.button{font-size:12px;padding:8px 12px}.button{display:inline-block;border:1px solid #dfe5ee;border-radius:5px;padding:8px 12px;color:#344256;background:white;white-space:nowrap}.button:hover{border-color:var(--blue);text-decoration:none;color:var(--blue)}.spacer{flex:1}.notice{background:#edf5ff;color:#4f719b;border:1px solid #dfedff;border-radius:5px;padding:10px 13px;font-size:12px;line-height:1.7;margin-bottom:16px}.notice strong{color:#246fc6}.table-wrap{overflow:auto;width:100%}table{border-collapse:collapse;width:100%;text-align:left;font-size:12px}th{background:#f7f9fb;color:#748196;font-weight:500;white-space:nowrap;padding:13px 14px;border-bottom:1px solid var(--border)}td{padding:13px 14px;border-bottom:1px solid #f0f3f7;color:#526176;line-height:1.5}tbody tr:hover{background:#fafcff}.student-table{min-width:1050px}.name-cell{display:flex;align-items:center;gap:10px;white-space:nowrap}.name-cell>a{font-weight:500;font-size:13px}.avatar{width:34px;height:34px;border-radius:50%;background:#e8f1ff;color:#4f82bf;display:inline-grid;place-items:center;object-fit:cover;flex-shrink:0;font-weight:600}.avatar.big{width:72px;height:72px;font-size:24px}.avatar.medium{width:48px;height:48px;font-size:18px}.pagination{display:flex;justify-content:space-between;align-items:center;padding:17px 0 1px;font-size:12px;color:#8995a5;gap:12px}.page-controls{display:flex;align-items:center;gap:8px}.page-controls button{padding:5px 10px}.empty{text-align:center;padding:76px 20px;color:#98a4b4}.empty-icon{font-size:37px;background:#f1f6fd;width:75px;height:75px;border-radius:20px;display:grid;place-items:center;margin:0 auto 18px;color:#a4bedf}.empty h3{font-size:15px;font-weight:500;color:#6c7f96;margin-bottom:9px}.empty p{font-size:12px;max-width:430px;margin:0 auto 20px;line-height:1.8}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:23px}.stat{border:1px solid #e5ecf5;background:white;border-radius:8px;padding:23px;position:relative}.stat .label{font-size:12px;color:#8492a4}.stat .number{font-size:30px;font-weight:650;margin-top:14px;color:#203651}.stat .mini-icon{position:absolute;right:22px;top:22px;background:#eff5ff;padding:10px;border-radius:9px;color:var(--blue)}.welcome{background:linear-gradient(110deg,#e6f1ff,#f3faf8);border:1px solid #daeafb;padding:25px 27px;border-radius:8px;margin-bottom:20px;display:flex;justify-content:space-between;align-items:center;gap:18px}.welcome h1{font-size:23px;margin-bottom:10px}.welcome p{color:#6a829e;margin:0;line-height:1.7;font-size:13px}.two-col{display:grid;grid-template-columns:1.5fr 1fr;gap:20px}.two-col .panel{min-height:280px}.section-title{font-size:15px;padding:20px;margin:0;border-bottom:1px solid var(--border)}.quick-links{display:grid;grid-template-columns:1fr 1fr;gap:15px;padding:22px}.quick-links a{border:1px solid #e6edf6;border-radius:6px;padding:18px;color:#385576;display:block}.quick-links small{display:block;color:#8a9ab0;margin-top:8px;line-height:1.5}.detail-head{display:flex;gap:18px;align-items:center;padding:25px}.detail-head h2{font-size:19px;margin-bottom:9px}.detail-head .tags{display:flex;gap:8px;flex-wrap:wrap}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:22px;background:#f8fafc;border-radius:6px;margin-bottom:22px;font-size:13px}.info-grid label{display:block;font-size:12px;color:#8a97a8;margin-bottom:7px}.info-grid div{overflow-wrap:anywhere}.record{padding:18px;border:1px solid #e9edf4;border-radius:6px;margin-bottom:13px}.record-header{display:flex;justify-content:space-between;gap:10px;margin-bottom:12px;font-size:12px;color:#8b98aa}.record p{white-space:pre-wrap;margin:0;font-size:13px;line-height:1.8}.resource-name{font-weight:500;color:#3c608a}.resource-description{max-width:440px;white-space:pre-wrap;overflow-wrap:anywhere}
dialog.drawer{border:0;padding:0;position:fixed;inset:0 0 0 auto;margin:0;width:540px;max-width:100vw;height:100dvh;max-height:100dvh;background:white;color:#334155;box-shadow:-8px 0 40px #12243a18;overflow:hidden}dialog::backdrop{background:#16243b66}dialog.drawer.wide{width:800px}.drawer-inner{height:100%;display:flex;flex-direction:column}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:17px 23px;border-bottom:1px solid var(--border);flex-shrink:0}.drawer-head h2{font-size:16px;margin:0;font-weight:600}.close{font-size:24px;border:0;padding:0 4px;line-height:1;color:#94a0af}.drawer-body{padding:22px 25px;overflow-y:auto;flex:1;min-height:0}.drawer-footer{padding:15px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px;flex-shrink:0;background:white}.form-section{font-size:13px;font-weight:650;border-left:3px solid var(--blue);padding-left:9px;margin:5px 0 22px}.field{display:grid;grid-template-columns:89px minmax(0,1fr);gap:13px;align-items:start;margin-bottom:18px;font-size:12px}.field>span{padding-top:10px;text-align:right;color:#67758a}.field .required{color:#e24d61}.field input,.field select,.field textarea{width:100%;font-size:13px}.field textarea{min-height:95px}.field small{display:block;line-height:1.6;margin-top:6px;color:#92a0b2}.checks{display:flex;flex-wrap:wrap;gap:9px;padding:8px 0}.check{display:flex;align-items:center;gap:5px;background:#f6f9fd;padding:5px 8px;border-radius:4px;cursor:pointer}.check input{width:15px;margin:0}.photo-picker{display:flex;align-items:center;gap:15px;margin:5px 0 27px 103px}.photo-picker label{cursor:pointer;border:1px dashed #9fbce3;padding:7px 10px;border-radius:5px;color:#397fcb;font-size:12px}.photo-picker input{display:none}.photo-picker small{display:block;color:#95a0af;font-size:11px;margin-top:7px}.auth-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(at 20% 10%,#dceaff 0,transparent 60%),#f1f6fc;padding:24px}.auth-card{background:white;width:430px;max-width:100%;padding:37px;border:1px solid #e4ebf5;border-radius:13px;box-shadow:0 15px 70px #234f8110}.auth-brand{display:flex;align-items:center;gap:12px;margin-bottom:31px;font-size:18px;font-weight:600}.auth-card h1{font-size:21px;margin-bottom:10px}.auth-card p{font-size:13px;color:#8593a6;line-height:1.7;margin-bottom:26px}.auth-card label{font-size:13px;display:block;margin-bottom:18px;color:#60718b}.auth-card input{display:block;width:100%;margin-top:8px}.auth-card button.primary{width:100%;padding:11px}.auth-footer{text-align:center;color:#93a0b2;font-size:11px;margin-top:25px}.roll-table select{min-width:95px}.roll-table input{min-width:110px;width:100%}#toast{position:fixed;top:78px;left:50%;transform:translateX(-50%);background:#243c56;color:white;border-radius:7px;padding:12px 20px;box-shadow:0 5px 22px #14274025;z-index:1000;display:none;font-size:13px;max-width:90vw}.import-preview{max-height:300px;overflow:auto;border:1px solid var(--border);border-radius:5px;margin-top:17px}.help-list{line-height:2;color:#718196;padding-left:20px;font-size:13px}
@media(min-width:1800px){.main{padding:27px}.student-table td,.student-table th{padding:15px 17px}.panel-body{padding:24px}}
@media(max-width:1050px){.edition{display:none}.topbar{gap:12px;padding:0 15px}.topnav{gap:0}.topnav a{padding:9px 12px}.sidebar{width:140px}.main{margin-left:140px;padding:16px}.cards{gap:10px}.stat{padding:17px}.two-col{grid-template-columns:1fr}.info-grid{grid-template-columns:1fr 1fr}.brand{font-size:14px}}
@media(max-width:700px){.topbar{height:104px;flex-wrap:wrap;gap:0;padding:11px 14px;align-content:space-between}.brand{height:32px}.top-right{gap:7px}.account{max-width:135px;overflow:hidden;text-overflow:ellipsis;padding:6px}.top-right>.link{display:none}.topnav{height:34px;order:3;width:100%;justify-content:space-around}.topnav a{padding:7px 14px;font-size:13px}.sidebar{position:fixed;top:104px;right:0;bottom:auto;width:100%;height:48px;flex-direction:row;overflow-x:auto;padding:5px 8px;background:white;z-index:9;gap:3px;border-bottom:1px solid var(--border)}.sidebar h2,.sidebar-foot,.navicon{display:none}.sidebar a{padding:8px 10px;margin:0;font-size:12px}.main{margin:152px 0 0;padding:13px;min-height:calc(100vh - 152px)}.page-head{margin-bottom:14px}.page-head h1{font-size:18px}.panel{min-height:calc(100vh - 245px)}.panel-body{padding:13px}.filters{gap:10px}.filters label{min-width:calc(50% - 10px)}.filters label:first-child{flex-basis:100%}.filters label{font-size:11px;gap:6px}.filters select{width:80px}.filters input{width:130px}.notice{padding:8px 10px;font-size:11px}.tabs{padding:0 14px;gap:21px}.cards{grid-template-columns:1fr 1fr}.stat .number{font-size:25px}.stat .mini-icon{right:13px;top:14px;font-size:12px;padding:7px}.welcome{padding:20px;display:block}.welcome h1{font-size:19px}.welcome button{margin-top:16px}.detail-head{padding:20px 14px;flex-wrap:wrap}.detail-head .spacer{display:none}.detail-head h2{font-size:17px}.info-grid{gap:16px;padding:16px}.drawer-body{padding:20px 15px}.field{grid-template-columns:75px minmax(0,1fr);gap:10px}.photo-picker{margin-left:85px}.auth-card{width:calc(100vw - 48px);padding:28px}.pagination{flex-wrap:wrap}.page-head>.tag{display:none}#toast{top:164px}}