/* 切换按钮 */
/* 上一个 */
.osSlider-main .slider-btn-prev {
    position: absolute;
    z-index: 30;
    top: 50%;
    left: 30px;
    width: 55px;
    height: 55px;
    margin-top: -27px;
    background: rgba(0, 0, 0, .3) url(../images/icon_71.png) center center no-repeat;
    font-size: 0;
    cursor: pointer;
    border-radius: 50%;
     left: -60px;
    opacity: 0;
    transition: all .3s;
}

/* 下一个 */
.osSlider-main .slider-btn-next {
    position: absolute;
    z-index: 30;
    top: 50%;
    right: 30px;
    width: 55px;
    height: 55px;
    margin-top: -27px;
    font-size: 0;
    cursor: pointer;
    border-radius: 50%;
    right: -60px;
    opacity: 0;
    transition: all .3s;
    background: rgba(0, 0, 0, .3) url(../images/icon_72.png) center center no-repeat;
}

.osSlider-main .slider-btn-prev:hover {
    background: #9C2326 url(../images/icon_71.png) center center no-repeat;
}
.osSlider-main .slider-btn-next:hover {
    background: #9C2326 url(../images/icon_72.png) center center no-repeat;
}
.osSlider-main:hover .slider-btn-next{
    right: 30px;
    opacity: 1;
}
.osSlider-main:hover .slider-btn-prev{
    left: 30px;
    opacity: 1;
}
.slider-btn {
    width: 1600px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    height: 55px;
    z-index: 99;
}

/* 高亮导航部分 */
.osSlider-main .slider-nav {
    position: absolute;
    width: 100%;
    height: 14px;
    bottom: 60px;
    text-align: center;
    z-index: 25;
    display:none;
}

.osSlider-main .slider-nav li {
    display: inline-block;
    width: 14px;
    height: 14px;
    background-color: #e4e4e4;
    opacity: 1;
    margin-left: 8px;
    margin-right: 8px;
    transition: all .3s;
    border-radius: 50%;
    font-size: 0;
    vertical-align: top;
    cursor: pointer;
}

.osSlider-main .slider-nav li.active {
    background-color:#9C2326;
    width: 56px;
    border-radius: 15px;
}

.osSlider-main .slider-nav li:hover {
    background: #fff;
    opacity: 1;
}
@media screen and (max-width: 1800px) {
    .slider-btn{
        width: 1300px;
    }
}