*{
    margin: 0 auto;
    padding: 0;
}

.nav{
    width: 100%;
    height: 90px;
    position: relative;
    }
    
    a {
        text-decoration: none;
    }
    .nav ul{
    width: 800px;
    height: 80px;
    list-style: none;
    position: absolute;
    right: 300px;
    bottom: 0;
    
    }
    
    .nav ul li{
        float: left;
        width: 160px;
        height: 80px;
        font-size: 20px;
        list-style: none;
        line-height: 80px;
        text-align: center;
    }
    
    .logo{
        width: 220px;
        height: 60px;
        position: absolute;
        left: 200px;
        top: 20px;
    }
    
    .nav .logo img{
        width: 220px;
        height: 60px;    
    }
    
    
    .banner{
        width: 100%;
        height: 300px;
        background-color: brown;
        position: relative;
        }
        
        .banner-pic{
        width: 100%;
        height: 300px;
        }
        
        .banner-pic img{
            width: 100%;
            height: 300px; 
        }
        
        .banner .fu{
        width: 200px;
        height: 300px;
        position: absolute;
        background-color: rgb(161, 217, 219);

        left: 300px;
        top: 0px;
        }
        
        .banner .fu div{
        width: 200px;
        height: 75px;
        }
        
        
        .banner .fu div a{
        font-size: 19px;
        text-align: center;
        line-height: 50px;
        color: #000;
        display: block;
        }
        

        
.sub-nav{
    width: 1200px;
    height: 30px;
    text-align: center;
    font-size: 25px;
    color: #000;
    margin: 50px auto 50px;
    }

    .content{
width: 1200px;
height: 200px;
margin: 0 auto;
position: relative;
    }

    .content-left{
width: 600px;
height: 200px;
float: left;
    }
    
    .content-right{
        width: 600px;
        height: 200px;
        position: absolute;
        right: 0;
     float: left;
            }


            .content-right ul li{
list-style: none;
width: 200px;
font-size: 15px;
color: #000;
float: left;
text-align: center;
margin-top: 15px;
            }


            .neirong{
width: 1200px;
height: 600px;
margin: 0 auto;
            }

            .neirong-items{
width: 600px;
height: 150px;
float: left;
            }


            .line{
width: 600px;
height: 150px;
float: left;
box-sizing: border-box;
border-bottom: 1px dashed #000;
            }
     
            .line div p{
                text-align: center;
            }

            .footer{
                width: 100%;
                height: 380px;
                background: #bed6d5;
                    }
                
                    .first-line{
                width: 1200px;
                height: 40px;
                margin: 0 auto;
                    }
                
                .second-line{
                width: 1200px;
                height: 120px;
                margin: 0 auto;
                }
                
                .second-line div{
                width: 100px;
                height: 100px;
                float: left;
                font-size: 12px;
                text-align: center;
                }
                
                
                .second-line div img{
                    width: 100px;
                    height: 100px;
                    }
                
                    .three-line{
                width: 1200px;
                height: 220px;
                margin: 0 auto;
                    }
                
                    .three-line .three-line-left{
                width: 600px;
                height: 220px;
                float: left;
                
                    }
                
                
                    .three-line .three-line-right{
                        width: 600px;
                        height: 220px;
                        float: left;
                        
                            }
                
                
                  .three-line ul{
                      list-style: none;
                      margin-top: 15px;
                  }
                
                  .three-line ul li{
                float: left;
                width: 200px;
                font-size: 15px;
                color: #fff;
                  }
                
                  .three-line-right p{
                      margin-top: 6px;
                   
                  }