:root{--bg:#fff;--side:#f7f7f5;--card:#fff;--text:#262723;--muted:#90918b;--line:#eaeae5;--soft:#f8f8f6;--green:#39795b;--green-soft:#eef6f0;--orange:#b67f36;--orange-soft:#fbf3e7;--shadow:0 16px 60px #24281f16}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:13px;background:var(--bg);color:var(--text);line-height:1.5}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}button,a,input,select,textarea{outline-offset:4px}button{border:0;background:none}button:disabled{cursor:not-allowed;opacity:.4}a{color:inherit;text-decoration:none}[hidden]{display:none!important}.sidebar{width:234px;position:fixed;inset:0 auto 0 0;padding:28px 18px 0;background:var(--side);border-right:1px solid var(--line);display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:12px;padding:0 9px;margin-bottom:32px;font-weight:600;font-size:15px}.brand-mark{font-size:32px;font-weight:400;line-height:1}.brand small{display:block;font-size:10px;letter-spacing:1.2px;color:var(--muted);font-weight:400;margin-top:2px}.primary{background:var(--text);color:var(--bg);border:1px solid var(--text);border-radius:7px;padding:10px 16px;font-weight:500}.primary:hover{opacity:.86}.new-task{width:100%;display:flex;gap:10px;align-items:center;margin-bottom:32px}.new-task span{font-size:20px;line-height:1}.new-task kbd{margin-left:auto;border-color:#ffffff35;color:#ffffff85}.nav-label{font-size:11px;color:var(--muted);padding:0 12px;letter-spacing:.3px;margin-bottom:10px}.nav{display:flex;align-items:center;text-align:left;gap:11px;width:100%;padding:11px 12px;border-radius:7px;color:#74756e;margin:3px 0}.nav>span{font-size:17px;width:19px;text-align:center}.nav b{margin-left:auto;font-size:10px;font-weight:500;background:var(--card);padding:1px 6px;border-radius:4px}.nav.active{background:#eaeae5;color:var(--text)}.nav:hover{background:#eeeeea}.platforms-label{margin-top:40px;display:flex;justify-content:space-between}.platform{display:flex;align-items:center;gap:9px;padding:10px 9px;font-size:11px}.platform small{display:block;font-size:10px;color:var(--muted);margin-top:3px}.platform .dot{margin-left:auto}.platform-icon{width:29px;height:29px;border:1px solid var(--line);border-radius:7px;background:var(--card);display:grid;place-items:center}.dot{width:6px;height:6px;display:inline-block;border-radius:50%;flex-shrink:0}.green{background:var(--green)}.sidebar-note{margin-top:auto;font-size:11px;color:#777970;padding:18px 10px}.sidebar-note .dot{margin-right:6px}.sidebar-note small{display:block;font-size:10px;color:var(--muted);margin-top:7px}.profile{display:flex;gap:10px;align-items:center;border-top:1px solid var(--line);padding:18px 8px;font-size:11px}.avatar{width:31px;height:31px;background:#e5e5dd;border-radius:50%;display:grid;place-items:center;font-size:12px}.profile small{display:block;color:var(--muted);font-size:10px}.profile button{margin-left:auto;font-size:19px;color:var(--muted)}main{margin-left:234px}.topbar{height:67px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 42px;font-size:11px}.crumb{color:var(--muted)}.slash{padding:0 12px;color:#ccc}.top-actions{display:flex;align-items:center;gap:18px}.demo-tag{font-size:10px;border:1px solid var(--line);color:var(--muted);border-radius:4px;padding:2px 7px}.live{font-size:10px;color:#777970}.live i{margin-right:5px}.icon-btn{width:25px;height:25px;border:1px solid var(--line);border-radius:50%;color:var(--muted);font-size:13px}.page{max-width:1430px;margin:0 auto;padding:49px 42px 0}.page-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px;gap:20px}.eyebrow{font-size:9px;letter-spacing:1.8px;color:var(--muted);margin-bottom:11px}h1{font-size:27px;letter-spacing:-1px;line-height:1.35;font-weight:600;margin:0 0 10px}.page-heading p{font-size:12px;color:var(--muted);margin:0}.secondary{padding:8px 13px;border:1px solid #deded6;border-radius:6px;background:var(--card);font-size:11px;white-space:nowrap}.secondary:hover{background:var(--soft)}.overview{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:9px;margin-bottom:35px;overflow:hidden}.metric{padding:22px 24px;border-right:1px solid var(--line)}.metric:last-child{border-right:0}.metric-label{display:flex;justify-content:space-between;font-size:11px;color:#82847a}.metric-label>span:last-child{font-size:16px}.metric-value{display:flex;gap:9px;align-items:baseline;margin-top:9px}.metric-value strong{font-size:29px;font-weight:500;letter-spacing:-1px}.metric-value small{font-size:10px;color:var(--muted)}.metric-bottom{color:var(--muted);font-size:10px;margin-top:6px}.metric.attention strong{color:var(--orange)}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.heading-left{display:flex;gap:10px;align-items:center}h2{font-size:14px;font-weight:600;margin:0}.heading-left>span{font-size:10px;color:var(--muted);border:1px solid var(--line);padding:1px 6px;border-radius:4px}.text-button{font-size:11px;color:#777a70;padding:0}.text-button:hover{color:var(--text)}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:19px}.tabs{display:flex;gap:4px;background:var(--soft);border:1px solid var(--line);border-radius:7px;padding:3px}.tabs button{padding:5px 10px;font-size:11px;color:#86877e;border-radius:4px;white-space:nowrap}.tabs button.selected{background:var(--card);box-shadow:0 1px 4px #0000000c;color:var(--text)}.tabs span{font-size:9px;margin-left:4px;opacity:.7}.search{display:flex;gap:7px;align-items:center;border:1px solid var(--line);border-radius:6px;padding:6px 10px;width:225px;color:var(--muted)}.search>span{font-size:18px;line-height:1}.search input{width:100%;border:none;background:transparent;outline:none;font-size:11px;color:var(--text);min-width:0}input::placeholder,textarea::placeholder{color:#a1a29b}kbd{font:9px Inter,monospace;border:1px solid var(--line);border-radius:3px;padding:0 4px;color:var(--muted)}.table-wrap{border:1px solid var(--line);border-radius:8px;overflow:auto}table{width:100%;border-collapse:collapse;text-align:left;white-space:nowrap}th{font-size:10px;font-weight:400;color:var(--muted);background:var(--soft);height:39px;padding:0 15px;border-bottom:1px solid var(--line)}td{padding:19px 15px;border-bottom:1px solid var(--line);font-size:11px}tr:last-child td{border-bottom:none}tbody tr:hover{background:var(--soft)}.check-cell{width:42px;padding-left:16px;padding-right:3px}input[type=checkbox]{accent-color:var(--green);width:12px;height:12px;cursor:pointer;vertical-align:middle}.account-name{font-size:12px;font-weight:500;display:flex;gap:9px;align-items:center}.mini-avatar{width:28px;height:28px;border-radius:7px;display:grid;place-items:center;background:#eeefe8;color:#747967;font-size:10px;flex-shrink:0}.account-info small{display:block;font-size:9px;color:var(--muted);margin-top:2px;font-weight:400}.course-title{font-size:11px;max-width:225px;overflow:hidden;text-overflow:ellipsis;display:block}.course-meta{font-size:9px;color:var(--muted);margin-top:5px;display:block}.progress-head{width:205px}.progress-top{display:flex;justify-content:space-between;align-items:center;font-size:10px;margin-bottom:7px}.progress-top small{color:var(--muted);font-size:9px}.progress-track{height:5px;background:#eeefea;border-radius:6px;overflow:hidden;width:100%;min-width:120px}.progress-track>span{height:100%;display:block;background:#74997f;border-radius:6px;transition:width .6s}.progress-track.attention>span{background:#c2a274}.progress-track.paused>span,.progress-track.queued>span{background:#a4a69e}.status{font-size:10px;display:inline-flex;align-items:center;gap:6px;border-radius:4px;padding:3px 7px;background:var(--soft);color:#90918b}.status.running,.status.completed{background:var(--green-soft);color:var(--green)}.status.attention{background:var(--orange-soft);color:var(--orange)}.status i{width:5px;height:5px;border-radius:50%;background:currentColor}.operation{text-align:right;width:103px}.actions{display:flex;justify-content:flex-end;gap:8px;align-items:center}.row-action{font-size:10px;color:#82877a}.row-action:hover{color:var(--green)}.table-footer{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);padding:14px 1px}.table-footer i{width:4px;height:4px;margin-right:5px}.bottom-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;margin-top:21px}.activity-card{border:1px solid var(--line);border-radius:8px;padding:20px 22px}.activity-card h2{font-size:12px}.activity-item{display:flex;gap:10px;align-items:flex-start;padding:10px 0;font-size:10px}.activity-item>i{margin-top:6px;background:#a1b29e;width:5px;height:5px;border-radius:50%}.activity-item p{margin:0}.activity-item small{display:block;color:var(--muted);font-size:9px;margin-top:3px}.activity-item time{margin-left:auto;color:var(--muted);font-size:9px;white-space:nowrap}.tip-card{padding:25px 26px;border-radius:8px;background:var(--side);border:1px solid var(--line)}.tip-icon{font-size:25px;color:#808b77}.tip-card h3{font-size:13px;font-weight:500;margin:12px 0 7px}.tip-card p{font-size:11px;color:#8b8e81;line-height:1.9;margin:0 0 18px}.tip-card button{color:var(--green)}.page-footer{display:flex;justify-content:space-between;padding:30px 0 22px;color:#aaaca3;font-size:9px;letter-spacing:.25px}.bulk{display:flex;gap:12px;align-items:center;font-size:11px;padding:10px 14px;margin-bottom:12px;background:var(--green-soft);border-radius:6px}.small{font-size:10px;padding:4px 8px}.muted{color:var(--muted);font-size:11px}.empty{text-align:center;padding:50px}.empty>span{font-size:30px;color:var(--muted)}.empty h3{font-size:14px;font-weight:500}.empty p{font-size:11px;color:var(--muted)}.all-activity{border:1px solid var(--line);border-radius:8px;padding:12px 24px}.all-activity .activity-item{font-size:12px;padding:18px 0;border-bottom:1px solid var(--line)}.all-activity .activity-item:last-child{border-bottom:0}.backdrop{position:fixed;inset:0;background:#171c202d;z-index:20;backdrop-filter:blur(2px)}.drawer{position:fixed;right:0;top:0;bottom:0;width:440px;background:var(--card);z-index:21;box-shadow:var(--shadow);padding:28px;overflow-y:auto}.drawer-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:23px;margin-bottom:25px}.drawer-header small{font-size:10px;color:var(--muted)}.drawer-header h2{font-size:20px;margin-top:5px}.drawer-course{font-size:15px;font-weight:500;margin:20px 0 9px}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:25px 0}.detail-grid dt{font-size:10px;color:var(--muted);margin-bottom:4px}.detail-grid dd{margin:0;font-size:12px}.screen{background:var(--side);border:1px solid var(--line);border-radius:8px;padding:30px 20px;text-align:center;margin:24px 0}.screen .screen-icon{font-size:32px;color:#9caa91}.screen p{font-size:12px}.screen small{font-size:10px;color:var(--muted)}.drawer-buttons{display:flex;gap:10px;margin:20px 0}.drawer h3{font-size:12px}.drawer-log{font-family:ui-monospace,monospace;font-size:10px;color:var(--muted);line-height:2.2;border-left:1px solid var(--line);padding-left:13px;margin-top:20px}.drawer .progress-track{height:7px}.drawer .progress-top{font-size:13px}dialog{border:1px solid var(--line);border-radius:12px;padding:28px;width:480px;max-width:calc(100% - 30px);background:var(--card);color:var(--text);box-shadow:var(--shadow)}dialog::backdrop{background:#171c203d;backdrop-filter:blur(3px)}.dialog-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}.dialog-heading h2{font-size:21px;margin-top:4px}.dialog-heading small{font-size:9px;letter-spacing:1.5px;color:var(--muted)}.field{display:block;font-size:11px;margin:18px 0}.field input,.field select,.field textarea{display:block;width:100%;border:1px solid var(--line);border-radius:6px;padding:10px 12px;margin-top:8px;background:var(--bg);color:var(--text)}textarea{resize:vertical}.field-hint{font-size:10px;color:var(--muted);line-height:1.8}.dialog-footer{display:flex;justify-content:flex-end;gap:10px;border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.dialog-footer .primary{font-size:11px}.notice{font-size:11px;color:var(--muted);padding:12px;background:var(--side);border-radius:6px}.form-error{font-size:11px;color:#bd624f}.toast{position:fixed;bottom:28px;left:calc(50% + 117px);transform:translateX(-50%);padding:12px 20px;border:1px solid var(--line);border-radius:8px;background:var(--text);color:var(--bg);box-shadow:var(--shadow);font-size:12px;z-index:40}body.dark{--bg:#1c1d1a;--side:#171815;--card:#22231f;--text:#e2e4dc;--muted:#858a7b;--line:#35372f;--soft:#262822;--green:#95b69b;--green-soft:#2a382c;--orange:#d5b47e;--orange-soft:#3a3224}body.dark .nav.active{background:#2c2e27}body.dark .nav:hover{background:#292b24}body.dark .mini-avatar,body.dark .avatar{background:#363b2d;color:#c0c7b0}body.dark .progress-track{background:#363930}body.dark .primary{color:#20221b}body.dark .new-task kbd{color:#666c5c;border-color:#7779}@media(min-width:1600px){.page{padding-top:58px}.page-heading{margin-bottom:42px}.overview{margin-bottom:42px}td{padding-top:22px;padding-bottom:22px}.bottom-grid{margin-top:29px}}@media(max-width:1150px){.sidebar{width:200px}main{margin-left:200px}.page{padding:32px 24px 0}.topbar{padding:0 24px}.toolbar{align-items:flex-start;flex-wrap:wrap}.search{width:100%}.progress-head{min-width:180px}.toast{left:calc(50% + 100px)}}@media(max-width:760px){.sidebar{position:static;width:100%;padding:14px;flex-direction:row;align-items:center;gap:12px;border-right:0;border-bottom:1px solid var(--line)}.brand{padding:0;margin:0;font-size:12px}.brand-mark{font-size:24px}.new-task{width:auto;margin:0 0 0 auto;font-size:10px}.new-task kbd,.sidebar nav,.nav-label,.platform,.sidebar-note,.profile{display:none}main{margin:0}.topbar{height:50px;padding:0 18px}.live{display:none}.page{padding:28px 18px 0}h1{font-size:21px}.page-heading{align-items:flex-start;flex-direction:column;gap:16px}.overview{grid-template-columns:1fr 1fr}.metric{padding:16px}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}.metric-value strong{font-size:25px}.tabs{width:100%;justify-content:space-between}.tabs button{padding:5px 7px}.bottom-grid{grid-template-columns:1fr}.drawer{width:100%;max-width:440px}.toast{left:50%;width:max-content;max-width:90%}.table-footer{gap:15px}.page-footer{font-size:8px}}
.admin-app .tabs{flex-wrap:wrap}.admin-app .drawer-buttons{flex-wrap:wrap}.admin-app .admin-delete{color:#a85848}.admin-app .account-info small{max-width:240px;overflow:hidden;text-overflow:ellipsis}.admin-app #adminActionInfo{overflow-wrap:anywhere}.admin-app .drawer-log{overflow-wrap:anywhere}.admin-app .toolbar{gap:14px}.admin-app .tabs button{padding:5px 8px}@media(max-width:760px){.admin-app .sidebar nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:12;background:var(--card);border-top:1px solid var(--line);padding:6px 10px calc(6px + env(safe-area-inset-bottom));gap:5px}.admin-app .sidebar .nav{margin:0;padding:8px 6px;justify-content:center;gap:5px;font-size:11px}.admin-app .sidebar .nav>span{width:16px;font-size:15px}.admin-app .sidebar .nav b{margin-left:0;font-size:9px}.admin-app .page{padding-bottom:65px}.admin-app .toast{bottom:85px}.admin-app .bulk{flex-wrap:wrap}.admin-app .top-actions{gap:9px}}
.login-page{display:grid;min-height:100dvh;place-items:center;background:var(--side);padding:24px}.login-page .login-shell{margin:0;width:100%;max-width:440px;padding:36px;background:var(--card);border:1px solid var(--line);border-radius:14px}.login-shell .brand{padding:0;margin-bottom:42px}.login-shell h1{font-size:25px;margin:10px 0}.login-shell form{margin-top:28px}.login-shell .field{margin:18px 0}.login-shell .primary{width:100%;margin-top:12px}.login-shell input{width:100%}.top-actions [data-session-user]{max-width:110px;overflow:hidden;text-overflow:ellipsis}.admin-app #accountRows td{overflow-wrap:anywhere}.admin-app #taskAccount{max-width:100%}@media(max-width:600px){.login-page{padding:16px}.login-page .login-shell{padding:25px}.top-actions{gap:8px}.demo-tag{display:none}}
.login-page .login-shell{min-height:0}