:root{--bg: #0f172a;--surface: #1e293b;--surface-2: #273449;--border: #334155;--text: #e2e8f0;--text-dim: #94a3b8;--accent: #6366f1;--danger: #ef4444;--warn: #f59e0b;--ok: #22c55e;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}#root{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:10}.topbar h1{font-size:18px;margin:0}.topbar .actions{display:flex;gap:8px}button{font-family:inherit;cursor:pointer;border:none;border-radius:8px;padding:8px 14px;background:var(--surface-2);color:var(--text);font-size:14px}button.primary{background:var(--accent);color:#fff}button.danger{background:var(--danger);color:#fff}button.ghost{background:transparent;border:1px solid var(--border)}button:disabled{opacity:.5;cursor:not-allowed}.group-tabs{display:flex;gap:8px;padding:10px 16px;overflow-x:auto;border-bottom:1px solid var(--border)}.group-tab{display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:var(--surface);white-space:nowrap;font-size:13px;border:1px solid var(--border)}.group-tab.active{border-color:var(--accent);background:var(--surface-2)}.dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.board{flex:1;display:grid;grid-template-columns:repeat(4,minmax(220px,1fr));gap:12px;padding:16px;overflow-x:auto}@media (max-width: 900px){.board{grid-template-columns:1fr}}.column{background:var(--surface);border-radius:12px;padding:10px;display:flex;flex-direction:column;gap:8px;min-height:120px}.column-header{display:flex;justify-content:space-between;align-items:center;padding:4px 6px 8px;font-weight:600;font-size:14px;color:var(--text-dim)}.task-card{background:var(--surface-2);border-radius:10px;padding:10px 12px;border-left:3px solid var(--accent);cursor:pointer}.task-card .title{font-size:14px;margin-bottom:6px}.task-card .meta{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:12px;color:var(--text-dim)}.badge{padding:2px 8px;border-radius:999px;font-size:11px}.badge.overdue{background:#ef444433;color:#fca5a5}.badge.soon{background:#f59e0b33;color:#fcd34d}.badge.normal{background:#94a3b826;color:var(--text-dim)}.task-card .move-row{display:flex;justify-content:space-between;margin-top:8px}.task-card .move-row button{padding:4px 8px;font-size:12px}.empty-hint{color:var(--text-dim);font-size:13px;text-align:center;padding:20px 0}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}.modal{background:var(--surface);border-radius:14px;padding:20px;width:100%;max-width:440px;max-height:90vh;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.modal h2{margin:0 0 4px;font-size:16px}.field{display:flex;flex-direction:column;gap:4px}.field label{font-size:12px;color:var(--text-dim)}input,textarea,select{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:8px 10px;color:var(--text);font-size:14px;font-family:inherit}textarea{min-height:70px;resize:vertical}.modal-actions{display:flex;justify-content:space-between;gap:8px;margin-top:8px}.settings-page{padding:16px;max-width:560px;margin:0 auto;width:100%;display:flex;flex-direction:column;gap:20px}.card{background:var(--surface);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:12px}.card h3{margin:0;font-size:15px}.status-row{display:flex;align-items:center;gap:8px;font-size:13px}.status-dot{width:10px;height:10px;border-radius:50%}.status-dot.ready{background:var(--ok)}.status-dot.qr{background:var(--warn)}.status-dot.disconnected{background:var(--danger)}.status-dot.starting{background:var(--text-dim)}.qr-box{display:flex;justify-content:center;background:#fff;padding:12px;border-radius:12px}.qr-box img{width:220px;height:220px}.row{display:flex;align-items:center;justify-content:space-between;gap:8px}.group-manage-list{display:flex;flex-direction:column;gap:8px}.group-manage-item{display:flex;align-items:center;gap:8px;background:var(--surface-2);border-radius:8px;padding:8px 10px}.group-manage-item input[type=text]{flex:1}.error-text{color:#fca5a5;font-size:13px}.toast{position:fixed;bottom:16px;left:50%;transform:translate(-50%);background:var(--surface-2);border:1px solid var(--border);padding:10px 16px;border-radius:10px;font-size:13px;z-index:200}