/* CSS Document */
body{
    min-width: 1200px;
}
/* banner start */
.scroll {
    overflow: hidden;
    width: 100%;
    height: 760px;
    margin: 0 auto;
    position: relative;
}

.scroll ul {
    position: absolute;
    top: 0;
    left: 0;
    width: 1000000%;
    height: 100%;
}

.scroll ul li {
    /* li的宽度就是 整个窗口的宽度  让js 给它宽度*/
    height: 100%;
    -webkit-background-size: 100% 100% !important;
    -o-background-size: 100% 100% !important;
    -moz-background-size: 100% 100% !important;
    -ms-background-size: 100% 100% !important;
    background-size: 100% 100% !important;
    background-position: center center !important;
    float: left;

}
.scroll .banner .ws img{
    width: 100%;
}

.scroll ol {
    position: absolute;
    bottom: 50px;
    left: 50%;
    z-index: 99;
}

.scroll ol li {
    width: 12px;
    height: 12px;
    background-color: #d7d7d7;
    margin: 0 5px 0;
    float: left;
    cursor: pointer;
    border-radius: 100%;
    box-shadow: 0 0px 2px rgba(255, 255, 255, 0.6);
}


.scroll ol li.current {
    background-color: #fce0c9;
}

.change_aa {
    display: block;
    width: 100%;
    height: 100%;
    text-align: center;
}

.S-right {
    width: 44px;
    height: 60px;
    background: url(../images/s-right.png) no-repeat center;
    background-color: rgba(0, 0, 0, 0.4);
    cursor: pointer;
}

.S-left {
    width: 44px;
    height: 60px;
    background: url(../images/s-left.png) no-repeat center;
    background-color: rgba(0, 0, 0, 0.4);
    cursor: pointer;
}


.arrow {
    position: absolute;
    width: 1200px;
    height: 60px;
    z-index: 99;
    left: 0;
    right: 0;
    margin: auto;
    top: 50%;
    margin-top: -30px;
}

@media (min-width:1920px) {
    .arrow {
        width: 62.5%;
    }
}

 
 
 
 

@media screen and (min-width: 1280px) and (max-width: 1680px) {


  


    .first_nav>ul>li {
        margin: 20px 5px 0 5px;
    }

}

@media screen and (min-width: 960px) and (max-width: 1280px) {


    .arrow {
        width: 62.5%;
    }
 

  
}

@media screen and (min-width: 768px) and (max-width: 960px) {
    .arrow {
        width: 80%;
    }
 
}


@media (max-width:1680px) {

    .sidebar-index {
        width: 60px;
    }

    .sidebar-index.active {
        position: fixed;
        top: 50%;
        margin-top: -240px;
    }

    .sidebar-index a {
        width: 60px;
        height: 60px;
        background-size: 40%;
    }

    .sidebar-index a .saifbig {
        position: absolute;
        top: 0;
        left: -190px;
        display: none;
    }
}

/* 内容区域 结束*/