.picker {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    width: 100%;
    height: 100%;
    overflow: hidden;
    /*font-family: PingFang SC, STHeitiSC-Light, Helvetica-Light, arial, sans-serif;*/
    font-size: 16px;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
    z-index: -100;
}

.picker .picker-mask {
    position: absolute;
    z-index: 500;
    width: 100%;
    height: 100%;
    transition: all .5s;
    -webkit-transition: all .5s;
    background: transparent;
    opacity: 0;
}

.picker .picker-mask.show {
    background: rgba(0, 0, 0, .6);
    opacity: 1;
}

.picker .picker-panel {
    position: absolute;
    z-index: 600;
    bottom: 0;
    width: 100%;
    height: calc(50% - 21px);
    background: #fff;
    transform: translateY(243px);
    -webkit-transform: translateY(243px);
    transition: all .5s;
    -webkit-transition: all .5s;
}

.picker .picker-panel.show {
    transform: translateY(0);
    -webkit-transform: translateY(0);
}

.picker .picker-panel .picker-choose {
    position: relative;
    height: 50px;
    color: #878787;
    font-size: 14px;
}

.picker .picker-panel .picker-choose.show {
	display: block;
}

.picker .picker-panel .picker-choose .picker-title {
    line-height: 50px;
    font-size: 19px;
    text-align: center;
    color: #333;
}

.picker .picker-panel .picker-choose .cancel,
.picker .picker-panel .picker-choose .confirm {
    position: absolute;
    padding: 10px;
    top: 6px;
}

.picker .picker-panel .picker-choose .confirm {
    right: 0;
    color: #fa8919;
}

.picker .picker-panel .picker-choose .cancel {
    left: 0;
}

.picker .picker-panel .picker-content {
    position: relative;
	height: 100%;
}

.picker .picker-panel .picker-content .mask-bottom,
.picker .picker-panel .picker-content .mask-top {
    position: absolute;
    z-index: 10;
    width: 100%;
    height: calc(50% - 16px);
    pointer-events: none;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

.picker .picker-panel .picker-content .mask-top {
    top: 0;
    background: -webkit-gradient( linear, left top, left bottom, from(rgba(250,250,250, 1)), to(rgba(250,250,250,0.6)) );
}

.picker .picker-panel .picker-content .mask-bottom {
    bottom: 0;
    background: -webkit-gradient( linear, left top, left bottom, from(rgba(250,250,250, 0.6)), to(rgba(250,250,250,1)) );
}

.picker .picker-panel .picker-content .mask-top .line, .picker .picker-panel .picker-content .mask-bottom .line {
    position: absolute;
    width: calc(100% - 30px);
    margin-left: 15px;
    background: black;
    height: 1px;
    box-shadow: 0px 0px 1px 0px grey;
    clear: both;
}

.picker .picker-panel .picker-content .mask-top .line {
    bottom: 0;
}

.picker .picker-panel .picker-content .mask-bottom .line {
    top: 0;
}

.picker .picker-panel .wheel-wrapper {
    display: -ms-flexbox;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    padding: 0 10px;
}

.picker .picker-panel .wheel-wrapper .wheel {
    -ms-flex: 1 1 1e-9px;
    -webkit-box-flex: 1;
    -webkit-flex: 1;
    flex: 1;
    -webkit-flex-basis: 1e-9px;
    flex-basis: 1e-9px;
    width: 1%;
    height: 100%;
    overflow: hidden;
}

.picker .picker-panel .wheel-wrapper .wheel .wheel-scroll {
    /*margin-top: calc(25vh - 32px);*/
    /*padding-top: 8px;*/
    padding-left: 6px;
}

_::-webkit-:host:not(:root:root), .safari_only {
    /*margin-top: calc(25vh - 35px);*/
}

.picker .picker-panel .wheel-wrapper .wheel .wheel-scroll .wheel-item {
    height: 34px;
    overflow: hidden;
    white-space: nowrap;
    color: #222;
    line-height: 34px;
}

.picker .picker-footer {
    height: 20px;
}

@media (-webkit-min-device-pixel-ratio:1.5),
(min-device-pixel-ratio:1.5) {
    .border-1px:after,
    .border-1px:before {
        -webkit-transform: scaleY(.7);
        -webkit-transform-origin: 0 0;
        transform: scaleY(.7)
    }
    .border-1px:after {
        -webkit-transform-origin: left bottom
    }
}

@media (-webkit-min-device-pixel-ratio:2),
(min-device-pixel-ratio:2) {
    .border-1px:after,
    .border-1px:before {
        -webkit-transform: scaleY(.5);
        transform: scaleY(.5)
    }
}