/* 设置下拉菜单的背景颜色 */
.ui-select {
    appearance: base-select;
    cursor: pointer;
    display: flex;
    align-items: center;
    background: transparent;
}

/* 下拉列表 */
.ui-select::picker(select) {
    appearance: base-select;
    border: 1px solid #d9d9d9;
    border-radius: 8px;
    padding: 6px;
    max-height: 306px;
    overflow: auto;
    overscroll-behavior: none;
    scrollbar-width: thin;
    text-align: left;
    top: calc(anchor(bottom) + 4px);
    box-shadow: rgba(0, 0, 0, 0.1) 0px 3.25px 4.875px 0px;
}

.ui-select.reverse::picker(select) {
    top: auto;
    bottom: calc(anchor(top) - 1px);
}

.ui-select option {
    display: block;
    line-height: 20px;
    padding: 4px 6px;
    color: #555;
    font-size: 12px;
    background-color: #fff;
    text-decoration: none;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: background-color .2s;
    box-sizing: border-box;
    overflow: hidden;
    margin-bottom: 4px;
    border-radius: 4px;
}

.ui-select option:checked,
.ui-select option:hover {
    background-color: #ebebeb;
}

.ui-select option::checkmark {
    display: none;
}

.ui-select::picker(select) {
    opacity: 0;
    transition: .2s allow-discrete;
}

.ui-select::picker(select):popover-open {
    opacity: 1;
}