.kb-demo{position:relative;border:1px solid var(--color-border);border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 20px 50px -20px #1e40af26;font-size:13px;color:#0a0a0a}.kb-topnav{background:#fef9ed;border-bottom:1px solid #f0e8d6;padding:8px 16px}.kb-topnav-inner{display:flex;gap:18px;align-items:center;justify-content:center;font-size:13px;color:#44403c;overflow-x:auto}.kb-tab{display:inline-flex;align-items:center;gap:4px;white-space:nowrap}.kb-tab-icon{width:14px;height:14px;border-radius:3px;display:inline-block}.kb-tab-badge em{background:#ef4444;color:#fff;border-radius:999px;font-style:normal;font-size:10px;padding:1px 5px;margin-left:2px}.kb-tab-active{color:#1d4ed8;font-weight:600}.kb-toolbar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid #f0f0f0;gap:12px;flex-wrap:wrap}.kb-toolbar-left,.kb-toolbar-right{display:flex;align-items:center;gap:10px}.kb-title{font-weight:600;font-size:15px}.kb-icon-btn{width:28px;height:28px;border-radius:6px;border:1px solid #e5e5e5;background:#fff;cursor:pointer;font-size:14px;line-height:1}.kb-icon-btn:hover{background:#f5f5f5}.kb-chip-static{font-size:11px;border:1px solid #e5e5e5;border-radius:4px;padding:2px 6px;color:#737373}.kb-select{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#525252}.kb-select select{border:1px solid #e5e5e5;border-radius:6px;padding:4px 6px;font-size:12px;background:#fff;cursor:pointer}.kb-filters{display:flex;align-items:center;gap:8px;padding:10px 16px;border-bottom:1px solid #f0f0f0;flex-wrap:wrap}.kb-search{border:1px solid #e5e5e5;border-radius:999px;padding:6px 12px;font-size:12px;width:200px;outline:none}.kb-search:focus{border-color:#1d4ed8}.kb-chipgroup{display:flex;gap:6px;flex-wrap:wrap}.kb-chip{border:1px solid #e5e5e5;border-radius:999px;padding:4px 12px;font-size:12px;background:#fff;cursor:pointer;color:#404040;transition:background .15s,border-color .15s}.kb-chip:hover{background:#f5f5f5}.kb-chip-active{background:#eff6ff;border-color:#1d4ed8;color:#1d4ed8}.kb-board{display:flex;gap:12px;padding:14px 16px 20px;overflow-x:auto;background:linear-gradient(to bottom,#fafafa,#f5f5f5);min-height:460px}.kb-col{flex:0 0 260px;background:#fff;border:1px solid #e5e5e5;border-radius:10px;display:flex;flex-direction:column;max-height:500px}.kb-col-header{display:flex;align-items:center;gap:6px;padding:10px 12px;border-bottom:1px solid #f0f0f0;font-size:12px;font-weight:600}.kb-col-name{flex:1}.kb-col-count{color:#737373;font-weight:500}.kb-col-collapse,.kb-col-expand{border:none;background:transparent;cursor:pointer;color:#737373;font-size:14px;padding:2px 6px}.kb-col-collapse:hover,.kb-col-expand:hover{color:#0a0a0a}.kb-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.kb-col-body{padding:10px;display:flex;flex-direction:column;gap:8px;overflow-y:auto}.kb-col-collapsed{flex:0 0 36px;background:#fff;border:1px solid #e5e5e5;border-radius:10px;display:flex;flex-direction:column;align-items:center;padding:10px 0;gap:10px}.kb-col-railname{writing-mode:vertical-rl;transform:rotate(180deg);font-size:12px;font-weight:600;color:#404040;display:flex;align-items:center;gap:6px;padding:4px 0}.kb-col-railcount{font-size:11px;color:#737373}.kb-card{background:#fff;border:1px solid #e5e5e5;border-radius:8px;padding:10px;display:grid;grid-template-columns:auto auto 1fr;gap:6px 8px;align-items:start;cursor:grab;transition:box-shadow .15s,transform .15s,border-color .15s}.kb-card:hover{box-shadow:0 4px 12px #0000000f;border-color:#d4d4d4;transform:translateY(-1px)}.kb-drag{color:#d4d4d4;font-size:12px;line-height:1;user-select:none;cursor:grab}.kb-check{margin:2px 0 0;accent-color:#1d4ed8}.kb-card-body{grid-column:3;display:flex;flex-direction:column;gap:6px}.kb-card-title{font-size:12.5px;line-height:1.35;color:#171717}.kb-card-meta{display:flex;align-items:center;gap:6px;font-size:11px;color:#737373}.kb-avatar{width:20px;height:20px;border-radius:50%;background:#1d4ed8;color:#fff;font-size:9px;font-weight:600;display:inline-flex;align-items:center;justify-content:center}.kb-comments{font-size:11px}.kb-card-tags{display:flex;flex-wrap:wrap;gap:4px}.kb-tag{font-size:10px;font-weight:600;padding:2px 6px;border-radius:3px;color:#fff;letter-spacing:.01em}.kb-empty{font-size:12px;color:#a3a3a3;padding:20px 8px;text-align:center}.kb-dropdown{position:absolute;background:#fff;border:1px solid #e5e5e5;border-radius:8px;box-shadow:0 10px 30px #00000014;min-width:180px;max-height:260px;overflow-y:auto;z-index:10;padding:4px}.kb-dd-item{display:block;width:100%;text-align:left;padding:6px 10px;border:none;background:none;cursor:pointer;font-size:12px;border-radius:4px;color:#262626}.kb-dd-item:hover{background:#f5f5f5}.kb-dd-active{background:#eff6ff;color:#1d4ed8;font-weight:600}@media(max-width:768px){.kb-search{width:100%}.kb-col{flex-basis:240px}}