.double-picker {
            display:block;
        }
        #displayRange{ font-size:.18rem; font-weight:600;  }
        .picker-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: .16rem;
        }
        .nav-btn {
            cursor: pointer;
            color: #688f7e;
            font-size: .18rem;
            user-select: none;
            font-weight: bold;
            border: none;
            padding:15px;
            border-radius:50%;
        }
        .nav-btn:hover {
            color: #5b7e6f;
        }
        .months-container {
            display: flex;
            gap: .2rem;
            justify-content: center;
            flex-wrap: nowrap;
        }
        .month-panel {
            flex: 1;
            border: 1px solid #f1f1f1;
            border-radius: .1rem;
            padding: .2rem;
        }
        .month-title {
            text-align: center;
            margin-bottom: 10px;
            color: #333;
            font-size: .16rem;
        }
        .weekdays {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            text-align: center;
            font-size:.18rem;
            color: #333;
            font-weight:600;
            margin-bottom: 4px;
        }
        .days-grid {
           display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap:5px;
        }
        .day-cell {
            aspect-ratio: 1 / 0.9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size:.18rem;
            border-radius: 4px;
            cursor: default;
            color: #333;
        }
        .day-cell.current-month {
            background: white;
            color: #333;
        }
        .day-cell.selectable {
            color: #333;
            cursor: pointer;
            font-weight: 500;
            border: 1px solid #333;
            position: relative;
        }
        .day-cell.selectable:hover {
            background: #5b7e6f; color:#fff;
        }
        .day-cell.selectable.selected{ background: #688f7e;  color: #fff; border: 1px solid #688f7e; }
        .day-cell.selectable.selected::before{ content: "";
    display: inline-block;
    width: 4px;
    height: 8px;
    position: absolute;
    border-bottom: .03rem solid #fff;
    border-right: .03rem solid #fff;
    top: 4px;
    right: 7px;
    transform: rotate(45deg); }
        .day-cell.disabled {
            opacity: 0.5;
            cursor: not-allowed;
            text-decoration: line-through;
        }
        .selected-info {
            margin-top: 16px;
            padding: 8px 12px;
            background: #f5f5f5;
            border-radius: 4px;
            font-size: 14px;
        }