.w1200 {
    width: 1200px;
    margin: 0 auto;
}

.tit {
    width: 100%;
    height: 68px;
    margin: 0 auto;
}

.tit a {
    display: block;
    height: 68px;
}

.box1 {
    background: url(../images/bg1.png) no-repeat top center;
    width: 100%;
    height: 422px;
    margin: 0 auto;
}

.box1 .left {
    width: 750px;
    margin-left: 8px;
}

.box1 .right{
    width: 441px;
}

.box1 .right a{
    display: block;
    width: 414px;
    font-size: 24px;
    color: #5b5b5b;
    margin: 30px auto;
    line-height: 35px;
}
.box2 .right {
    background: #f6fdfe;
    width: 874px;
    height: 182px;
}

.box2 .right a {
    font-size: 24px;
    color: #5b5b5b;
    display: block;
    width: 815px;
    margin: 30px auto;
}

.box2 .right p {
    font-size: 16px;
    color: #5b5b5b;
    width: 815px;
    margin: 0 auto;
    line-height: 33px;
}

.box3 .gc {
    float: left;
    width: 237px;
    margin-right: 3px;
    margin-bottom: 3px;
    position: relative;
}

.box3 .stit {
    width: 385px;
    margin: 0 auto;
}

.box3 .zz {
    display: none;
    width: 237px;
    height: 376px;
    background: rgba(0, 0, 0, .6);
    overflow: hidden;
    position: absolute;
    top: 0;
    left: 0;
}

.box3 .zz:first-child {
    top: 0;
    left: 240px;
}

.box3 .zz a {
    display: block;
    font-size: 24px;
    color: #fff;
    width: 204px;
    margin: 30px auto;
    line-height: 35px;
}

.box3 .zz p {
    display: block;
    font-size: 16px;
    color: #fff;
    width: 204px;
    margin: 20px auto;
    line-height: 35px;
}

.box4 .w750 {
    position: relative;
    float: left;
    width: 750px;
}

.box4 .w750 .swiper-container {
    width: 750px;
    height: 421px;
}

.box4 .w750 .swiper-container .swiper-wrapper .swiper-slide a {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}

.box4 .w750 .swiper-container .swiper-wrapper .swiper-slide a img {
    width: 750px;
    height: 421px;
}

.box4 .w750 .swiper-container .swiper-wrapper .swiper-slide a .text {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    font-size: 18px;
    color: #fff;
    font-weight: 700;
    padding: 10px 0;
    text-indent: .5em;
    background: rgba(0, 0, 0, .6);
}

.box4 .w750 .page {
    position: absolute;
    right: 10px;
    bottom: 14px;
    z-index: 20;
    font-size: 0;
}

.box4 .w750 .page .swiper-pagination-switch {
    display: inline-block;
    width: 16px;
    height: 16px;
    border-radius: 16px;
    background: #fff;
    margin-right: 10px;
    cursor: pointer
}

.box4 .w750 .page .swiper-active-switch {
    background: #4185ca;
}

.box4 .w450 {
    width: 450px;
    float: right;
    background: #f6fdfe;
    height: 420px;
    overflow: hidden;
}

.box4 .w450 ul {
    width: 412px;
    margin: 25px auto;
}

.box4 .w450 ul li {
    line-height: 30px;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.box4 .w450 ul li a {
    font-size: 16px;
    color: #5b5b5b;
}

.box5 .video_wraper {
    margin: 0 auto;
    width: 1200px;
    height: 675px;
}

.box5 .video {
    height: 675px;
}