*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji";font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.collapse{visibility:collapse}.flex{display:flex}.inline-flex{display:inline-flex}.table{display:table}.grid{display:grid}.hidden{display:none}.min-h-screen{min-height:100vh}.w-full{width:100%}.max-w-sm{max-width:24rem}.items-center{align-items:center}.justify-center{justify-content:center}.gap-3{gap:.75rem}.break-all{word-break:break-all}.border{border-width:1px}.px-6{padding-left:1.5rem;padding-right:1.5rem}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}:root{--primary: #5B4B8A;--primary-dark: #443768;--primary-light: rgba(91, 75, 138, .08);--secondary: #7B5EA7;--success: #06A77D;--warning: #FFB703;--danger: #EF6F6C;--bg: #F5F3F8;--card: #FFFFFF;--ink: #1F2937;--ink-soft: #6B7280;--ink-muted: #9CA3AF;--line: #E5E7EB;--line-soft: #F3F4F6;--shadow-sm: 0 1px 3px rgba(31, 41, 55, .04), 0 1px 2px rgba(31, 41, 55, .06);--shadow-md: 0 4px 12px rgba(31, 41, 55, .06), 0 2px 4px rgba(31, 41, 55, .04);--shadow-lg: 0 12px 32px rgba(31, 41, 55, .08);--shadow-hover: 0 8px 24px rgba(31, 41, 55, .1);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--transition: all .2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5;font-size:14px;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input,select,textarea{font-family:inherit}a{color:inherit;text-decoration:none}.app-layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--card);border-right:1px solid var(--line);padding:20px 14px;position:fixed;top:0;bottom:0;left:0;z-index:50;display:flex;flex-direction:column;flex-shrink:0;transition:transform .25s ease}.logo{display:flex;align-items:center;gap:10px;padding:0 8px 20px;border-bottom:1px solid var(--line-soft);margin-bottom:14px}.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:10px;display:grid;place-items:center;color:#fff;font-size:18px;font-weight:800}.logo-text{font-size:15px;font-weight:800;line-height:1.2}.logo-text .sub{font-size:11px;color:var(--ink-soft);font-weight:500}.nav-group{margin-bottom:18px}.nav-group-title{font-size:11px;color:var(--ink-muted);text-transform:uppercase;letter-spacing:.5px;padding:0 10px 8px}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius-sm);color:var(--ink-soft);font-size:14px;font-weight:500;margin-bottom:2px;transition:var(--transition)}.nav-item:hover{background:var(--line-soft);color:var(--ink)}.nav-item.active{background:linear-gradient(135deg,#5b4b8a1a,#7b5ea71a);color:var(--primary);font-weight:700}.nav-item .icon{font-size:16px;width:20px;text-align:center}.nav-item .badge{margin-left:auto;background:var(--danger);color:#fff;font-size:10px;font-weight:700;padding:1px 7px;border-radius:999px}.sidebar-footer{margin-top:auto;padding:14px 10px 0;border-top:1px solid var(--line-soft);display:flex;align-items:center;gap:10px}.sidebar-footer .avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;display:grid;place-items:center;font-weight:700;flex-shrink:0}.sidebar-footer .info{flex:1;min-width:0}.sidebar-footer .name{font-size:13px;font-weight:700}.sidebar-footer .role{font-size:11px;color:var(--ink-soft)}.main{flex:1;margin-left:220px;padding:24px 32px;max-width:100%;overflow-x:hidden}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.breadcrumb{font-size:13px;color:var(--ink-soft)}.breadcrumb b{color:var(--ink)}.topbar-actions{display:flex;gap:10px;align-items:center}.search-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:7px 12px 7px 32px;width:240px;font-size:13px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239CA3AF' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.3-4.3'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:10px center;outline:none;transition:border-color .15s}.search-box:focus{border-color:var(--primary)}.btn{padding:8px 16px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;transition:var(--transition);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);box-shadow:0 4px 12px #5b4b8a4d}.btn-primary:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}.btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}.btn-success{background:var(--success);color:#fff}.btn-success:hover{filter:brightness(1.08);box-shadow:0 4px 12px #06a77d4d}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{filter:brightness(1.08)}.btn-sm{padding:5px 12px;font-size:12px}@keyframes fade{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.page-enter{animation:fade .25s ease}.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:12px;flex-wrap:wrap}.page-title{font-size:22px;font-weight:800}.page-subtitle{font-size:13px;color:var(--ink-soft);margin-top:2px}.page-head-actions{display:flex;align-items:center;gap:10px}.live-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;background:#06a77d1a;border:1px solid rgba(6,167,125,.2);border-radius:999px;font-size:12px;font-weight:600;color:var(--success)}.live-dot{width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.card{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--line);padding:20px;transition:var(--transition)}.card:hover{box-shadow:var(--shadow-md)}.card+.card{margin-top:16px}.card-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.card-title .more{font-size:12px;color:var(--ink-soft);font-weight:500;cursor:pointer}.card-title .more:hover{color:var(--primary)}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.stat-card{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--line);padding:18px;position:relative;overflow:hidden;transition:var(--transition)}.stat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}.stat-card .card-label{font-size:13px;color:var(--ink-soft);font-weight:500}.stat-card .card-value{font-size:28px;font-weight:800;margin:4px 0;line-height:1.2}.stat-card .card-delta{font-size:12px;font-weight:700;display:flex;align-items:center;gap:4px}.stat-card .card-delta.up{color:var(--success)}.stat-card .card-delta.down{color:var(--danger)}.stat-card .icon-bg{position:absolute;right:12px;top:12px;width:40px;height:40px;border-radius:10px;display:grid;place-items:center;font-size:18px;transition:var(--transition)}.stat-card:hover .icon-bg{transform:scale(1.1)}.stat-card.students .icon-bg{background:#5b4b8a1f}.stat-card.completed .icon-bg{background:#06a77d1f}.stat-card.pending .icon-bg{background:#ffb7031f}.stat-card.accuracy .icon-bg{background:#7b5ea71f}.stat-card .unit{font-size:13px;font-weight:600;color:var(--ink-soft);margin-left:4px}.stat-card:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;border-radius:0 0 var(--radius-md) var(--radius-md)}.stat-card.students:after{background:linear-gradient(90deg,var(--primary),var(--secondary))}.stat-card.completed:after{background:var(--success)}.stat-card.pending:after{background:var(--warning)}.stat-card.accuracy:after{background:var(--secondary)}.grid-2{display:grid;grid-template-columns:2fr 1fr;gap:16px;margin-bottom:24px}.grid-2-equal{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}.progress-track{flex:1;height:8px;background:var(--line-soft);border-radius:999px;overflow:hidden}.progress-fill{height:100%;border-radius:999px;transition:width .6s cubic-bezier(.4,0,.2,1);min-width:2px}.progress-bar{width:100px;height:6px;background:var(--line-soft);border-radius:999px;overflow:hidden;display:inline-block;vertical-align:middle}.progress-bar>span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:999px;transition:width .6s ease}.rank-list{list-style:none}.rank-list .rank-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line-soft);transition:var(--transition)}.rank-list .rank-item:last-child{border-bottom:none}.rank-list .rank-item:hover{background:var(--primary-light);margin:0 -8px;padding:10px 8px;border-radius:var(--radius-sm)}.rank-no{width:24px;height:24px;border-radius:50%;background:var(--line-soft);color:var(--ink-soft);display:grid;place-items:center;font-size:12px;font-weight:700;flex-shrink:0;transition:var(--transition)}.rank-no.top{width:28px;height:28px;font-size:13px}.rank-list .rank-item:nth-child(1) .rank-no{background:#ffe066;color:#b8860b}.rank-list .rank-item:nth-child(2) .rank-no{background:#e0e0e0;color:#666}.rank-list .rank-item:nth-child(3) .rank-no{background:#ffd3a5;color:#b87333}.rank-info{flex:1;min-width:0}.rank-name{font-size:13px;font-weight:600}.rank-meta{font-size:11px;color:var(--ink-soft);margin-top:2px}.rank-stars{color:var(--warning);font-weight:700;font-size:13px;flex-shrink:0}.table-wrap{overflow-x:auto}table.data{width:100%;border-collapse:collapse;font-size:13px}table.data th{text-align:left;padding:10px 12px;color:var(--ink-soft);font-weight:600;font-size:12px;border-bottom:1px solid var(--line);background:var(--line-soft);white-space:nowrap}table.data td{padding:12px;border-bottom:1px solid var(--line-soft);vertical-align:middle}table.data tr:last-child td{border-bottom:none}table.data tbody tr{transition:background .15s}table.data tbody tr:hover td{background:#fafbfc}.student-cell{display:flex;align-items:center;gap:10px}.student-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;flex-shrink:0}.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:700;white-space:nowrap}.tag-success{background:#06a77d1f;color:var(--success)}.tag-warning{background:#ffb7031f;color:#b8860b}.tag-danger{background:#ef6f6c1f;color:var(--danger)}.tag-primary{background:#5b4b8a1f;color:var(--primary)}.tag-secondary{background:#7b5ea71f;color:var(--secondary)}.tag-muted{background:var(--line-soft);color:var(--ink-soft)}.heatmap{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-top:12px}.heat-cell{aspect-ratio:1;border-radius:4px;background:var(--line-soft)}.heat-cell.l1{background:#d4c8e5}.heat-cell.l2{background:#a98fc9}.heat-cell.l3{background:#7b5ea7}.heat-cell.l4{background:#5b4b8a}.form-row{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:6px}.form-input,.form-select,.form-textarea{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:14px;font-family:inherit;outline:none;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}.form-textarea{resize:vertical;min-height:100px}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #5b4b8a1a}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#1f293780;z-index:200;display:grid;place-items:center;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);padding:16px}.modal{background:#fff;border-radius:var(--radius-lg);width:560px;max-width:92vw;max-height:88vh;overflow-y:auto;padding:24px;animation:pop .2s ease}@keyframes pop{0%{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.modal-title{font-size:18px;font-weight:800}.modal-close{width:28px;height:28px;border-radius:50%;background:var(--line-soft);display:grid;place-items:center;font-size:16px;color:var(--ink-soft);transition:var(--transition)}.modal-close:hover{background:var(--line);color:var(--ink)}.modal-foot{display:flex;gap:10px;justify-content:flex-end;margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}.toast{position:fixed;top:24px;right:24px;background:var(--ink);color:#fff;padding:12px 20px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;box-shadow:var(--shadow-lg);transform:translate(120%);transition:transform .3s cubic-bezier(.5,1.6,.4,1);z-index:9999}.toast.show{transform:none}.toast.success{background:var(--success)}.toast.error{background:var(--danger)}.empty-state{text-align:center;padding:80px 20px;color:var(--ink-muted)}.empty-state .emoji{font-size:48px;margin-bottom:12px}.empty-state .text{font-size:14px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#b0b7c3}::-webkit-scrollbar-track{background:transparent}@media (max-width: 1024px){.stat-grid{grid-template-columns:repeat(2,1fr)}.grid-2,.grid-2-equal{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr;gap:12px}.main{padding:20px 24px}}@media (max-width: 768px){.sidebar{transform:translate(-100%);box-shadow:var(--shadow-lg)}.sidebar.open{transform:translate(0)}.main{margin-left:0;padding:16px}.search-box{width:100%}.topbar{flex-wrap:wrap;gap:10px}.stat-grid{grid-template-columns:1fr;gap:12px}.page-title{font-size:18px}.page-subtitle{font-size:12px}.card{padding:16px}.card-title{font-size:14px}.stat-card .card-value{font-size:24px}.grid-2,.grid-2-equal,.grid-3{gap:12px}}.mobile-menu-btn{display:none;width:36px;height:36px;border-radius:var(--radius-sm);background:var(--card);border:1px solid var(--line);align-items:center;justify-content:center;font-size:18px}@media (max-width: 768px){.mobile-menu-btn{display:grid}}.sidebar-mask{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:49}.sidebar-mask.show{display:block}.drawer-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#1f293773;z-index:200}.drawer{position:fixed;top:0;right:0;bottom:0;width:440px;max-width:92vw;background:#fff;box-shadow:var(--shadow-lg);z-index:201;display:flex;flex-direction:column;animation:slideIn .25s ease}@keyframes slideIn{0%{transform:translate(100%)}to{transform:none}}.drawer-head{padding:20px 24px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.drawer-body{flex:1;overflow-y:auto;padding:20px 24px}.pagination{display:flex;gap:6px;align-items:center;justify-content:flex-end;margin-top:16px}.pagination button{min-width:32px;height:32px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink-soft);font-size:13px;padding:0 8px;transition:var(--transition)}.pagination button:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.pagination button:disabled{opacity:.5;cursor:not-allowed}.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;align-items:center}.filter-bar .form-input,.filter-bar .form-select{width:auto;min-width:160px}