@subject-maxwidth:1460px;
@subject-minwidth:1220px;
.header-nav{
  width:100%;
  font-size: 12px;
  height: 195px;
  .header-nav-content-box{
    width:100%;
    z-index: 999;
    position:fixed;
    .ad_top{
      width: 100%;
      height: 80px;
      position: relative;
      a{
        width: 100%;
        height:100%;
        img{
          position: absolute;
          top: 0;
          left: 50%;
          margin-left: -966px;
        }
      }
    }
    .header-first-box{
      width:100%;
      line-height: 35px;
      background: #f5f5f5;
      overflow: hidden;
      .header-nav-first{
        width: @subject-minwidth;
        margin:0 auto;
        height:35px;
        .nav-first-left{
          float:left;
          height:35px;
          font-size:12px;
          .city-menu{
            height:35px;
            padding:0 11px 0 24px;
            position: relative;
            a{
              color:#0cb46a;
            }
            i{
              position: absolute;
              left: 5px;
              color: #0cb46a;
            }
          }
        }
        .nav-first-right{
          font-size: 12px;
          float:right;
          height:35px;
          li{
            position: relative;
            float:right;
            padding:0 14px 0 14px;
            .phone-number{
              margin-left:15px;
              color:#ff5a00;
              span{
                display: inline-block;
                text-decoration: underline;
                position: inherit;
                border-left: none;
              }
            }
            .phone-number:hover{
              color:#ff5a00;
            }
            a{
              color:#999;
              .icon-phone{
                padding:0;
                margin:0;
                position: absolute;
                top: 0;
                left:10px;
                border: none;
              }
            }

            span{
              display: block;
              position: absolute;
              top: 10px;
              right:0;
              height:12px;
              border-left: 1px solid #ddd;
            }
            i{
              display: inline-block;
              margin: 14px 0 0 3px;
              border-top: 5px solid #999;
              border-left: 3px solid transparent;
              border-right: 3px solid transparent;
            }
          }
          li:hover{
            a{
              color:#0cb46a;
            }
            .jiantou{
              border-top: 5px solid #0cb46a;
            }
          }
        }
      }
    }
    .header-last-box{
      width:100%;
      height:80px;
      background: #fff;
      .header-nav-content{
        width:@subject-minwidth;
        height:100%;
        margin:0 auto;
        position: relative;
        .header-logo{
          display: inline-block;
          position: absolute;
          width:157px;
          height:100%;
          a{
            position:absolute;
            top: 50%;
            left:0;
            margin-top:-22px;
          }
        }
        .header-content-center{
          width:70%;
          height:100%;
          margin:0 auto;
          ul:after{
            content:"";
            display: block;
            height:0;
            clear: both;
          }
          ul{
            height:100%;
            li{
              float:left;
              height:100%;
              padding:0 25px;
              position: relative;
              a{
                display: block;
                color:#333;
                font-size:16px;
                position: relative;
                top: 50%;
                margin-top: -11px;
                span{
                  display: none;
                  width:100%;
                  height:0;
                  border-top:1px solid #0cb46a;
                  position: absolute;
                  top:50%;
                  margin-top:12px;
                }
                i{
                  display: block;
                  position: absolute;
                  top: 9px;
                  right: -13px;
                  border-left: 4px solid transparent;
                  border-right: 4px solid transparent;
                  border-top: 5px solid #999;
                }
              }
            }
            li:hover{
              a{
                color:#0cb46a;
                span{
                  display: block;
                }
                i{
                  border-left: 4px solid transparent;
                  border-right: 4px solid transparent;
                  border-top: none;
                  border-bottom: 5px solid #0cb46a;
                  top: 8px;
                }
              }
            }
          }
        }
        .header-content-search{
          position: absolute;
          right:0;
          top:0;
          height:100%;
          form{
            position: relative;
            top: 50%;
            margin-top:-17px;
            div{
              height:34px;
              border:1px solid #ccc;
              input{
                float:left;
                font-size: 14px;
                border: none;
                padding:8px 0 9px 9px;
                outline: none;
              }
              i{
                display: inline-block;
                width:20px;
                height:20px;
                font-size: 18px;
                border: none;
                margin:7px 10px 0 10px;
                cursor: pointer;
              }
            }
          }
        }
      }
    }
    .drop-down-menu{
      display: none;
      position: absolute;
      width: 100%;
      height: 114px;
      background: #fff;
      border-top: 1px solid #ddd;
      padding-top: 36px;
      box-shadow: 0 5px 20px rgba(0,0,0,0.2);
      div{
        display: none;
        width: 929px;
        height: 100%;
        position: absolute;
        top: 0;
        left: 50%;
        margin-left: -464.5px;
        ul:after{
          content: '';
          display: block;
          clear: both;
        }
        ul{
          width: 100%;
          height: 100%;
          box-sizing: border-box;
          padding: 0 60px;
          li{
            float: left;
            height: 100%;

            a{
              display: block;
              width: 100%;
              height: 100%;
              img{
                height: 80px;
                width: 80px;
                margin: 0 auto;
                margin-top: 20px;
              }
              i{
                display: block;
                text-align: center;
                margin-top: 10px;
                font-size: 16px;
              }
            }
            a:hover{
              color: #fb752c;
            }
          }
        }
      }
      .zbxx{
        ul{
          li{
            width: 33.33333%;
          }
        }
      }
      .download{
        ul{
          li{
            width: 25%;
          }
        }
      }
    }
  }
}
@media screen and (min-width: 1460px){
  .header-nav{
    .header-nav-content-box{
      .header-first-box{
        .header-nav-first{
          width:@subject-maxwidth;
        }
      }
      .header-last-box{
        .header-nav-content{
          width:@subject-maxwidth;
          .header-content-center{
            width: 70%;
          }
        }
      }
    }
  }
}