* {
    margin: 0;
    padding: 0;
}

.app {
    width: 100%;
    margin: 50px 0;
    text-align: center;
}

.app .scroll {
    position: relative;
    display: inline-block;
    width: 626px;
    height: 460px;
}

.app .scroll .img {
    display: none;
    width: 100%;
}

.app .scroll .current {
    display: block;
}

.scroll .lf {
    position: absolute;
    top: 50%;
    left: 3%;
    right: auto;
    background: transparent url(../images/pc/icon/箭头.png) no-repeat right top;
    width: 50px;
    height: 69px;
    cursor: pointer;
    transform: translateY(-50%);
}

.scroll .lr {
    position: absolute;
    top: 50%;
    left: auto;
    right: 3%;
    background: transparent url('../images/pc/icon/箭头 (1).png') no-repeat left top;
    width: 50px;
    height: 69px;
    cursor: pointer;
    transform: translateY(-50%);
}

.dots {
    position: absolute;
    bottom: 15px;
    right: 20px;
    width: 160px;
}

.dots>span {
    display: inline-block;
    box-sizing: border-box;
    width: 11px;
    height: 11px;
    border: 3px solid rgba(204, 204, 204, 0.2);
    border-radius: 15px;
    cursor: pointer;
}

.dots>span:not(:last-child) {
    margin-right: 5px;
}

/* 小圆点的颜色 */
.dots .square {
    background: #409eff
}