.w1200 {
    width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.head_nav {
    height: 105px;
    width: 100%;
}
.head_nav_box {
    height: 100%;
    align-content: center;
}
.head_nav_box .logo {
    float: left;
    line-height: 105px;
    width: 280px;
    height: 105px;
    background: url(../images/logo@2x.png) no-repeat;
    background-position: 20px;
}
.head_nav_box .nav {
    float: right;
    height: 105px;
    line-height: 105px;
}
.head_nav_box .nav a {
    display: inline-block;
    width: 85px;
    text-align: center;
    font-size: 16px;
}
.head_nav_box .nav a:hover {
    color: #225EB4;
}
.banner img{
    width: 100%;
    display: block;
}
.bg{
    background: url("../images/bg@2x.png") no-repeat center;
    height: 4400px;
    background-position: 0 -599px;
}

.module1{
   padding-top: 230px;
    width: 1200px;
    height: 512px;
    background: url("../images/party1_define@2x.png") no-repeat center;
}
.module1 p{
    font-size: 18px;
    display: inline-block;
    width: 415px;
    margin-top: 160px;
    text-align: left;
}
.module2{
    margin-top: 134px;
}
.module3{
    margin: 50px auto;
}
.btn_box{
    cursor: pointer;
}

.theme-gonggong1 {
    z-index: 9999;
    position: fixed;
    display: none;
    top: 50%;
    left: 50%;
    margin: -232px 0 0 -296px;
}
.btn-close {
    position: absolute;
    right: 86px;
    top: 164px;
    font-size: 30px;
    cursor: pointer;
}
.theme-popover-mask {
    z-index: 9998;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    opacity: 0.4;
    filter: alpha(opacity=40);
    display: none;
}