html,body{
    width: 100%;
    height: 100%;
}
#mynav {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 999;
}
.seciton_one{
    background: url('/images/agent_bg.jpg');
    background-size: 100% 100%;
    padding: 130px 0 60px;
}
.seciton_one>p{
    color: #333;
    font-size: 18px;
    line-height: 18px;
    text-align: center;
    font-weight: bold;
}
.seciton_one>h2{
    color: #333;
    font-size: 30px;
    line-height: 30px;
    margin: 30px 0;
    text-align: center;
}
.seciton_one>h3{
    color: #333;
    font-size: 18px;
    line-height: 18px;
    text-align: center;
    text-align: center;
}
.seciton_one>div.btn{
    width: 210px;
    height: 44px;
    line-height: 44px;
    color: #fff;
    background: #c80000;
    text-align: center;
    font-size: 16px;
    border-radius: 4px;
    cursor: pointer;
    margin: 60px auto 0;
}
.section_line{
    background: #797979;
    height: 2px;
}
.section_two>h3,.section_three>h3{
    color: #333;
    font-size: 30px;
    line-height: 30px;
    margin: 60px 0;
    text-align: center;
}
.section_two>ul{
    width: 1200px;
    height: 200px;
    margin: 60px auto;
}
.section_two>ul>li{
    width: 280px;
    height: 200px;
    float: left;
   background: #fff;
    box-shadow: 0 3px 18px 0 rgba(0, 0, 0, 0.2);
    font-size: 18px;
    padding: 40px 30px;
    box-sizing: border-box;
}
.section_two>ul>li:first-child~li {
    margin-left: 180px;
}

.section_three ul{
    width: 400px;
    margin: 60px auto;
}
.section_three ul>li{
    width: 100%;
    height: 35px;
    line-height: 35px;
    margin-top: 20px;
}

.section_three ul>li>span{
    display: inline-block;
    width: 100px;
    font-size: 16px;
    line-height: 16px;
    vertical-align: middle;
}
.section_three ul>li>input{
    width: 280px;
    height: 28px;
    font-size: 14px;
    text-indent: 10px;
    border: 1px solid #a8a8a8;
    border-radius: 3px;
}
.section_three ul>li>input:focus{
    outline: none;
}

.section_three ul>li.btn{
    margin-top: 25px;
}
.section_three ul>li>button{
    width: 300px;
    height: 35px;
    border-radius: 5px;
    font-size: 14px;
    line-height: 35px;
    text-align: center;
    color: #fff;
    background: #c80000;
    border: none;
    outline: none;
    display: block;
    margin: 0 auto;
    cursor: pointer;
}
@media screen and (max-width: 1366px){
    .seciton_one>ul,.section_two>ul{
        width: 960px;
    }
    .section_two>ul>li{
        width: 220px;
    }
    .section_two>ul>li:first-child~li{
        margin-left: 150px;
    }
}