.material{
    width: 100%;
    height: 500px;
    background: url("../images/material-bg.png") no-repeat bottom;
    background-size: cover;
    overflow: hidden;
}
.item-title{
    text-align: center;
    margin: 20px auto;
}
.item-title p{
    margin-top: 10px;
}
.material-content{
    background: url("../images/material-p-bg.png") no-repeat;
    width: 1200px;
    height: 382px;
    margin: 0 auto;
    overflow: hidden;
}
.material-content h2{
    display: block;
    margin-left: 540px;
    margin-top: 80px;
    font-size: 20px;
}
.material-content p{
    display: block;
    width: 616px;
    margin-left: 540px;
    margin-top: 20px;
    text-align: justify;
    font-size: 16px;
    text-indent: 32px;
    letter-spacing: 2px;
    line-height: 36px;
}
.material-banner{
    width: 100%;
    height: 200px;
    background: url("../images/material-bg-2.png") no-repeat;
    background-size: cover;
    overflow: hidden;
    color: #fff;
    text-align: center;
}
.material-banner h2{
    font-size: 30px;
    margin-top: 40px;
}
.material-banner span{
    font-size: 48px;
}
.material-banner p{
    font-size: 16px;
    margin-top: 22px;
}
.material-main{
    overflow: hidden;
    margin-bottom: -30px;
}
.material-item{
    width: 100%;
    background: #f0f0f0;
    height: 470px;
    overflow: hidden;
}
.material-item-main{
    width: 1200px;
    height: 390px;
    margin: 40px auto;
    position: relative;
}
.material-item-word{
    float: left;
}
.material-item-word span{
    display: block;
    width: 30px;
    height: 30px;
    background: #d90000;
    border-radius: 3px;
}
.material-item-word h2{
    font-size: 24px;
    margin-top: 30px;
    margin-bottom: 30px;
}
.material-item-word p{
    font-size: 16px;
    display: block;
    width: 370px;
    text-align: justify;
    text-indent: 32px;
    line-height: 32px;
    letter-spacing: 2px;
}
.material-item-word a{
    display: block;
    width: 180px;
    position: absolute;
    bottom: 0;
    left: 0;
    text-align: center;
    height: 50px;
    font-size: 16px;
    color: #fff;
    line-height: 50px;
    background: #d90000;
    border-radius: 5px;
}
.material-item-img{
    float: right;
    margin-top: 50px;
}
.material-item.w{
    background: #fff;
}
.material-item.w .material-item-word{
    float: right;
}
.material-item.w .material-item-word span{
    float: right;
}
.material-item.w .material-item-word h2{
    text-align: right;
}
.material-item.w .material-item-word a{
    left: auto;
    right: 0 !important;
}
.material-item.w .material-item-img{
    float: left;
}