.slider-main li>img {
    width: 100%;
    height: 100%;
}


/* 切换按钮 */


/* 上一个 */

.osSlider-main .slider-btn-prev {
    position: absolute;
    z-index: 30;
    top: 50%;
    left: 10px;
    width: 40px;
    height: 40px;
    text-indent: -9999px;
    margin-top: -20px;
    background: url(../images/left_arrow.png);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    transition: all .5s linear;
}


/* 下一个 */

.osSlider-main .slider-btn-next {
    position: absolute;
    z-index: 30;
    top: 50%;
    right: 10px;
    width: 40px;
    height: 40px;
    text-indent: -9999px;
    margin-top: -20px;
    background: url(../images/right_arrow.png);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    transition: all .5s linear;
}


/* 高亮导航部分 */

.osSlider-main .slider-nav {
    position: absolute;
    width: 100%;
    height: 22px;
    bottom: 20px;
    text-align: center;
    z-index: 25;
}

.osSlider-main .slider-nav li {
    display: inline-block;
    height: 12px;
    line-height: 12px;
    padding: 0 6px;
    margin: 0 12px;
    font-size: 12px;
    color: #eee;
    border-radius: 6px;
    background-color: #fff;
    opacity: 0.4;
    cursor: pointer;
}

.osSlider-main .slider-nav li.active {
    color: #333;
    background-color: #ad0036;
    opacity: 1;
}

.osSlider-main .slider-nav li:hover {
    border: none;
    background-color: #ad0036;
    opacity: 1;
}