:root{--bg: #f5f7fa;--card: #ffffff;--text: #1f2937;--muted: #6b7280;--primary: #2563eb;--primary-dark: #1d4ed8;--border: #e5e7eb;--green: #16a34a;--red: #dc2626}*{box-sizing:border-box}body{margin:0;font-family:Microsoft YaHei,PingFang SC,system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.6}#root{min-height:100vh}.page{min-height:100vh;display:flex;flex-direction:column}.page.center{justify-content:center;align-items:center;gap:20px}.topbar{background:var(--card);border-bottom:1px solid var(--border);padding:12px 24px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10}.brand{font-weight:700;font-size:17px;cursor:pointer}.user{display:flex;align-items:center;gap:12px;color:var(--muted)}.content{flex:1;display:flex;gap:24px;width:100%;max-width:1100px;margin:0 auto;padding:24px;align-items:flex-start}.sidebar{width:260px;flex-shrink:0;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}.sidebar h2{font-size:15px;margin:0 0 12px}.plan-list{list-style:none;margin:0;padding:0}.plan-list li{display:flex;align-items:center;border-radius:8px;margin-bottom:6px;border:1px solid transparent}.plan-list li.active{border-color:var(--primary);background:#eff6ff}.plan-item{flex:1;background:none;border:none;text-align:left;padding:8px 10px;cursor:pointer;display:flex;flex-direction:column;gap:2px;font:inherit;color:inherit}.plan-title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.plan-progress{font-size:12px;color:var(--muted)}.icon-btn{background:none;border:none;color:var(--muted);cursor:pointer;padding:6px 8px;border-radius:6px}.icon-btn:hover{color:var(--red);background:#fef2f2}.main{flex:1;min-width:0}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px}.login-card{max-width:400px;text-align:center}.logo{font-size:40px}.h1{font-size:22px;margin:8px 0}.sub{color:var(--muted);margin:0 0 20px}.loading-card{color:var(--muted)}.field{display:block;margin-bottom:16px}.label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}input[type=text],input[type=number],textarea,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font:inherit;background:#fff;color:var(--text)}textarea{resize:vertical}input:focus,textarea:focus,select:focus{outline:2px solid #bfdbfe;border-color:var(--primary)}.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.btn{border:1px solid var(--border);background:#fff;color:var(--text);padding:10px 16px;border-radius:8px;cursor:pointer;font:inherit;font-weight:600}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover:not(:disabled){background:var(--primary-dark)}.btn.primary:disabled{opacity:.6;cursor:not-allowed}.btn.ghost{background:none;border:none;color:var(--muted)}.btn.small{padding:6px 10px;font-size:13px}.btn.block{width:100%}.progress-wrap{display:flex;align-items:center;gap:12px;margin:16px 0 8px}.progress-bar{flex:1;height:8px;background:var(--border);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--green);transition:width .2s ease}.progress-text{font-size:13px;color:var(--muted);white-space:nowrap}.week{margin-top:20px}.week-title{font-size:16px;margin:0 0 8px;display:flex;align-items:center;gap:8px}.week-progress{font-size:12px;color:var(--muted);background:var(--bg);padding:2px 8px;border-radius:10px}.task-list{list-style:none;margin:0;padding:0}.task{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;margin-bottom:6px;background:#fff}.task.done{background:#f0fdf4;border-color:#bbf7d0}.task.done .task-content{text-decoration:line-through;color:var(--muted)}.task-main{flex:1;display:flex;align-items:center;gap:10px;cursor:pointer}.task-main input[type=checkbox]{width:16px;height:16px;accent-color:var(--green);flex-shrink:0}.task-day{font-size:12px;font-weight:700;color:var(--primary);background:#eff6ff;padding:2px 8px;border-radius:6px;white-space:nowrap;flex-shrink:0}.task-duration{font-size:12px;color:var(--muted);white-space:nowrap;flex-shrink:0}.tips{margin-top:24px;background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:14px 18px}.tips h3{margin:0 0 8px;font-size:14px}.tips ul{margin:0;padding-left:20px}.banner{max-width:1100px;margin:12px auto 0;padding:10px 16px;border-radius:8px;cursor:pointer}.error-banner{background:#fef2f2;border:1px solid #fecaca;color:var(--red)}.error{color:var(--red);font-size:13px;margin-top:12px}.muted{color:var(--muted);font-size:13px}.center-text{text-align:center}.note{margin-top:8px;font-size:12px}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab{flex:1;padding:8px;border:1px solid var(--border);border-radius:8px;background:#fff;cursor:pointer;font:inherit;font-weight:600;color:var(--muted)}.tab.active{background:var(--primary);border-color:var(--primary);color:#fff}.notice{color:var(--green);font-size:13px;margin-top:12px}.footer{text-align:center;color:var(--muted);font-size:12px;padding:16px}@media (max-width: 760px){.content{flex-direction:column;padding:16px}.sidebar{width:100%}.row2{grid-template-columns:1fr}}