.tab {
    width: 100%;
    background: url(/images/i-xw.jpg)no-repeat top; margin: 0px 0px; width: 100%; height: 657px; overflow: hidden;
    background-size: cover;
    margin-top: 50px;
}
.tab .box {
    width: 1200px;
    position: relative;
    margin-left:460px;
    height: 657px;
}
.tab .box .menus {
    width: 280px;
    height: 620px;
    background: url(/images/gx01.png);
    float: left;
    margin-top: 0px;
    border-radius: 0px;
    overflow: hidden;
}
.tab .box .menus li {
    width: 280px;
    height: 76px;
    background: url(/images/gx01.png);
    font-size: 20px;
    color: #fff;
    text-align: left;
	padding-left: 10px;
    border-bottom: 2px solid rgb(255,255,255);
    line-height: 70px;
    transition: all 0.3s;
    -moz-transition: all 0.3s;
    -o-transition: all 0.3s;
    -webkit-transition: all 0.3s;
}
.tab .box .menus li:nth-child(7) {
    border-bottom: none;
}
.tab .box .bg {
    height: 76px !important;
    background: url(/images/gx02.png) !important;
    line-height: 76px !important;
}
.tab .right {
    float: left;
    width: 780px;
    margin-top: 25px;
    height: 580px;
    overflow: hidden;
    margin-left: 40px;
    border-radius: 0px;
    background: rgb(255,255,255);
}
.tab .tab_right {
    width: 780px;
    height: 580px;
    color: #fff;
    text-align: left;

    position:relative;
}
.tab .tab_right img {
    width: 100%;
    position: absolute;
        top: 50%;
        transform: translateY(-50%);
        left: 0;
}
.tab .scroll {
    transition: all 0.5s;
    -moz-transition: all 0.5s;
    -o-transition: all 0.5s;
    -webkit-transition: all 0.5s;
}