body{
    background: #F7F7F7;
}
/* 头部样式 */
.head{
    background: url(../images/application.png);
    height: 500px;
}
.head span{
    display: inline-block;
    margin-top: 174px;
    margin-bottom: 20px;
    font-weight: bold;
    font-size: 40px;
    color: #FFFFFF;
}
.head p{
    width: 1010px;
    color: #FFFFFF;
    line-height: 30px;
}

/* 内容样式 */
.case{
    margin-top: 24px;
}
.case .title li{
    font-weight: bold;
    font-size: 34px;
    color: #999999;
    display: inline-block;
    margin-right: 60px;
}
.case .title .black{
  color: #000000;
}
.case .title li:hover a{
    color: #000000;
}

.case .search form{
    width: 360px;
    height: 50px;
    font-size: 0px;
    display: flex;
    align-items: center;
}
.case .search input{
    width: 280px;
    height: 50px;
    box-sizing: border-box;
    border: 1px solid #C4C4C4;
    border-right: none;
    background: url(../images/search1.png)no-repeat;
    background-position: 15px 15px;
    padding-left: 44px;
    outline: none;
}
.case .search button{
    width: 80px;
    height: 50px;
    box-sizing: border-box;
    background: #A8875A;
    border: 1px solid #C4C4C4;
    font-size: 15px;
    color: #FFFFFF;
}
.case .center{
    margin-top: 42px;
}
.case .center li{
    width: 440px;
    height: 406px;
    position: relative;
    float: left;
    margin-right: 40px;
    background: #FFFFFF;
    margin-bottom: 50px;
}
.case .center a:nth-child(3n) li{
    margin-right: 0px;
}
.case .center .tips{
    padding: 0 20px;
    height: 40px;
    background: #003C78;
    position: absolute;
    top: 0px;
    left: 0px;
    color: #FFFFFF;
    line-height: 40px;
    text-align: center;
    z-index: 10;
}
.case .center .pic{
    width: 440px;
    height: 245px;
    overflow: hidden;
}
.case .center .imgBg{
    height: 245px;
    transition: all .3s ease-in-out;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}
.case .center li:hover .imgBg{
    transform: scale(1.2,1.2);
}
.case .center li:hover span{
    color: #A8875A;
}
.case .center span{
    width: 384px;
    margin-left: 15px;
    color: #333333;
    margin-top: 20px;
    margin-bottom: 10px;
    display: inline-block;
}
.case .center p{
    width: 384px;
    margin-left: 15px;
    color: #999999;
    line-height: 27px;
}