.header-action-link{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;padding:9px 13px;border:1px solid #cbd8ea;border-radius:12px;background:#fff;color:#244ab5;font-size:13px;font-weight:750;text-decoration:none;box-shadow:0 3px 10px #0f172a0a}.header-action-link:hover{border-color:#9cb3df;background:#f7f9ff}.header-action-link:focus-visible{outline:3px solid rgba(49,94,251,.24);outline-offset:2px}:root{font-family:Inter,Noto Sans TC,PingFang TC,Microsoft JhengHei,system-ui,sans-serif;color:#17233a;background:#f5f8fc;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;background:radial-gradient(circle at 12% 0,#fff 0,#f5f8fc 48%,#eef3f8)}button,a,input{font:inherit}.todo-page{max-width:1050px;margin:0 auto;padding:24px 14px 64px}.todo-page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.todo-page-header h1{margin:0;font-size:28px}.todo-page-header p{margin:5px 0 0;color:#64748b;font-size:13px}.todo-back{width:136px;white-space:nowrap}#refreshTodo,.todo-history-undo{display:inline-flex;align-items:center;justify-content:center;padding:7px 11px;border:1px solid #cbd8ea;border-radius:10px;background:#fff;color:#244ab5;font-weight:750;box-shadow:0 3px 10px #0f172a0a;cursor:pointer}#refreshTodo:hover,.todo-history-undo:hover{border-color:#9cb3df;background:#f7f9ff}button:focus-visible,input:focus-visible{outline:3px solid rgba(49,94,251,.24);outline-offset:2px}.todo-panel{overflow:hidden;border:1px solid #d7e0ec;border-radius:18px;background:#fffffff5;box-shadow:0 10px 32px #0f172a12}.todo-panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 17px;border-bottom:1px solid #dfe6ef}.todo-panel-head h2{margin:0;font-size:18px}.todo-panel-head p{margin:4px 0 0;color:#64748b;font-size:12px}.todo-panel-head>strong{color:#526277;font-size:13px}.todo-panel-body{padding:16px}.todo-history-panel{margin-top:16px}.subject-switch{position:relative;isolation:isolate;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));width:min(100%,680px);margin:0 auto 14px;padding:4px;border:1px solid #d4ddeb;border-radius:14px;background:#eef2f7}.subject-switch-indicator{position:absolute;z-index:-1;top:4px;bottom:4px;left:4px;width:calc((100% - 8px)/6);border:1px solid #a9c4ed;border-radius:10px;background:#fff;box-shadow:0 2px 7px #0f172a17;transition:transform .22s ease}.subject-switch[data-active="1"] .subject-switch-indicator{transform:translate(100%)}.subject-switch[data-active="2"] .subject-switch-indicator{transform:translate(200%)}.subject-switch[data-active="3"] .subject-switch-indicator{transform:translate(300%)}.subject-switch[data-active="4"] .subject-switch-indicator{transform:translate(400%)}.subject-switch[data-active="5"] .subject-switch-indicator{transform:translate(500%)}.subject-switch button{z-index:1;min-width:0;padding:8px 4px;border:0;border-radius:10px;background:transparent;color:#64748b;cursor:pointer}.subject-switch button[aria-selected=true]{color:#244ab5;font-weight:800}.todo-summary{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:13px;color:#64748b;font-size:12px}.todo-summary strong{color:#334155;font-size:13px}.todo-list{display:grid;gap:11px}.todo-card{--subject-accent:#90a4bd;display:grid;grid-template-columns:minmax(0,1fr) minmax(270px,330px);gap:16px;align-items:start;padding:14px 15px;border:1px solid color-mix(in srgb,var(--subject-accent) 48%,#d7e0ec);border-left:4px solid var(--subject-accent);border-radius:15px;background:color-mix(in srgb,var(--subject-accent) 8%,#fff);transition:opacity .16s ease,transform .16s ease}.todo-card.subject-chinese{--subject-accent:#b9958b}.todo-card.subject-english{--subject-accent:#9b88b5}.todo-card.subject-math{--subject-accent:#c49742}.todo-card.subject-natural{--subject-accent:#669a87}.todo-card.subject-other{--subject-accent:#8092aa}.todo-card-main{min-width:0}.todo-card-meta{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-bottom:5px;color:#64748b;font-size:12px}.todo-subject{padding:3px 8px;border-radius:999px;background:color-mix(in srgb,var(--subject-accent) 18%,#fff);color:color-mix(in srgb,var(--subject-accent) 80%,#17233a);font-weight:800}.todo-overdue{color:#b45309;font-weight:700}.todo-card h3{margin:0;color:#24344f;font-size:15px;line-height:1.45}.todo-description{margin:5px 0 0;color:#64748b;font-size:12px;line-height:1.55}.todo-record-grid{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:5px 12px;margin:11px 0 0;padding-top:10px;border-top:1px solid color-mix(in srgb,var(--subject-accent) 30%,#dbe4ee);font-size:12px;line-height:1.5}.todo-record-grid dt{color:#718096}.todo-record-grid dd{min-width:0;margin:0;color:#334155;overflow-wrap:anywhere}.todo-progress-editor{display:flex;align-items:center;gap:8px 14px;flex-wrap:wrap;margin:11px 0 0;padding:10px 0 0;border:0;border-top:1px solid color-mix(in srgb,var(--subject-accent) 30%,#dbe4ee);font-size:12px}.todo-progress-editor legend{float:left;margin:0 4px 0 0;padding:0;color:#64748b;font-weight:750}.todo-progress-editor label{display:inline-flex;align-items:center;gap:5px;color:#334155;cursor:pointer}.todo-progress-editor input{width:16px;height:16px;margin:0;accent-color:#528bd0}.todo-card-controls{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:9px;align-items:end}.todo-time-editor{grid-column:1/-1;display:grid;gap:8px}.todo-time-header{display:flex;align-items:center;justify-content:space-between;gap:10px;color:#64748b;font-size:12px}.todo-time-modes{display:grid;grid-template-columns:1fr 1fr;width:124px;padding:3px;border:1px solid #d4ddeb;border-radius:10px;background:#eef2f7}.todo-time-modes button{padding:5px 8px;border:0;border-radius:7px;background:transparent;color:#64748b;cursor:pointer;transition:background .18s ease,color .18s ease,box-shadow .18s ease}.todo-time-modes button[aria-pressed=true]{background:#fff;color:#2459a5;font-weight:800;box-shadow:0 2px 5px #0f172a1a}.todo-time-panel{height:40px}.todo-time-panel[hidden]{display:none}.todo-manual-panel{display:flex;align-items:center;gap:7px;color:#64748b;font-size:12px}.todo-manual-panel input{flex:1;min-width:0;height:40px;padding:7px 9px;border:1px solid #cbd8ea;border-radius:11px;background:#fff;color:#24344f}.todo-timer-panel{display:grid;grid-template-columns:minmax(68px,1fr) auto auto auto;gap:6px;align-items:center}.todo-timer-display{display:flex;align-items:center;justify-content:center;height:40px;border:1px solid #cbd8ea;border-radius:11px;background:#fff;color:#24344f;font-variant-numeric:tabular-nums}.todo-timer-panel button{height:34px;padding:5px 8px;border:1px solid #cbd8ea;border-radius:9px;background:#fff;color:#475569;font-size:11px;font-weight:750;cursor:pointer}.todo-timer-panel .todo-timer-primary{border-color:#528bd0;background:#528bd0;color:#fff}.todo-control-field{display:grid;gap:5px;color:#64748b;font-size:12px}.todo-control-field input{width:100%;min-width:0;height:37px;padding:6px 8px;border:1px solid #cbd8ea;border-radius:10px;background:#fff;color:#24344f}.todo-actions{display:flex;align-items:center;justify-content:flex-end;gap:7px}.todo-complete,.todo-skip{width:auto;min-width:58px;padding:6px 10px;border-radius:9px;font-size:12px;font-weight:800;cursor:pointer}.todo-complete{border:1px solid #3d78c2;background:#528bd0;color:#fff}.todo-complete:hover{background:#427bc0}.todo-skip{border:1px solid #cbd8ea;background:#fff;color:#475569}.todo-skip:hover{border-color:#90a9cf;background:#f7f9ff;color:#244ab5}.todo-empty{margin:0;padding:30px 16px;border:1px dashed #cbd8e6;border-radius:14px;background:#f8fafc;color:#64748b;text-align:center}.todo-feedback{margin-top:13px;padding:10px 12px;border:1px solid #b8d7c8;border-radius:12px;background:#f1faf5;color:#24634b;font-size:13px}.todo-error{margin:12px 0 0;padding:10px 12px;border:1px solid #f2b8b5;border-radius:12px;background:#fff5f5;color:#9b2c2c;font-size:13px}.todo-history-list{display:grid;gap:8px}.todo-history-item{--subject-accent:#90a4bd;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 12px;border:1px solid #dce4ee;border-left:3px solid var(--subject-accent);border-radius:12px;background:#fbfcfe}.todo-history-item.subject-chinese{--subject-accent:#b9958b}.todo-history-item.subject-english{--subject-accent:#9b88b5}.todo-history-item.subject-math{--subject-accent:#c49742}.todo-history-item.subject-natural{--subject-accent:#669a87}.todo-history-item.subject-other{--subject-accent:#8092aa}.todo-history-item>div{display:grid;gap:3px;min-width:0}.todo-history-item strong{overflow:hidden;color:#334155;font-size:13px;text-overflow:ellipsis;white-space:nowrap}.todo-history-item span{color:#718096;font-size:11px}.todo-history-undo{flex:none;padding:6px 10px;font-size:12px}.todo-history-list+.todo-empty{padding:20px 14px}@media(max-width:650px){.todo-page{padding-top:16px}.todo-page-header{align-items:flex-start;flex-direction:column}.todo-back{width:100%}.todo-panel-head{align-items:flex-start}.todo-panel-body{padding:13px}.subject-switch{width:100%}.subject-switch button{padding:8px 1px;font-size:12px}.todo-summary{align-items:flex-start;flex-direction:column;gap:4px}.todo-card{grid-template-columns:minmax(0,1fr);gap:13px}.todo-card-controls{padding-top:11px;border-top:1px solid color-mix(in srgb,var(--subject-accent) 30%,#dbe4ee)}.todo-time-modes{width:116px}.todo-timer-panel{grid-template-columns:1fr 1fr 1fr}.todo-timer-display{grid-column:1/-1}.todo-time-panel.todo-timer-panel{height:82px}.todo-control-field{min-width:0}.todo-actions{align-self:end}.todo-history-item{align-items:flex-start}.todo-history-item span{line-height:1.45}}@media(max-width:390px){.todo-card-controls{grid-template-columns:minmax(0,1fr)}.todo-control-field,.todo-actions{grid-column:1}.todo-actions{justify-content:flex-start}}@media(prefers-reduced-motion:reduce){.subject-switch-indicator,.todo-card,.todo-time-modes button{transition:none}}