.Maintenance{
 width: 100%;
 height: 450px;
 background-color: blueviolet;
 background: url("../images/Engineering.png") no-repeat;
 background-size: 100% 450px;
 z-index: 2;
}
.check{
 width: 100%;
 height: 503px;
 margin-top: 15px;
 /* background-color: aqua; */
 border-bottom: 2px solid #d5d5d5;
}
h1{
  font-size: 52px;
  padding-left: 169px;
  padding-right: 20px;
  padding-top: 142px;
}
.check h3{
 display: block;
 padding-top:15px;
 font-size: 20px;
 margin-left: 10px;
 padding-left: 10px;
 margin-bottom: 20px;
 
}
.check .left{
 width: 47%;
 height: 435px;
 /* background-color: chartreuse; */
 float: left;
 margin-left: 20px;
}
.check .left img{
  width: 100%;
  height: 435px;
  background-size: 47% 435px;
}
.check .right{
  width: 47%;
  height: 380px;
   /* background-color: rgb(0, 183, 255);  */
  float: right;
  margin-right: 20px;
  text-indent:2em ;
  font-size: 16px;
  border-left: 2px solid #d5d5d5;
  padding-left: 15px;
  padding-top: 58px;
  font-family:"华文仿宋", sans-serif;
}
.check1{
 width: 100%;
 height: 505px;
 margin-top: 15px;
 /* background-color: aqua; */
 border-bottom: 10px;
 border-bottom: 2px solid #d5d5d5;
 font-family:"华文仿宋", sans-serif;
}
.check1 img{
  width: 84%;
  height: 366px;
  background: 100% 366px;
}
.check1 h3{
 display: block;
 padding-top:15px;
 font-size: 20px;
 margin-left: 10px;
 padding-left: 10px;
 margin-bottom: 20px;
}
.check1 .right{
 width: 47%;
 height: 435px;
 /* background-color: chartreuse; */
 float: right;
 margin-left: 20px;
}
.check1 .left{
 width: 47%;
 height: 435px;
 /* background-color: rgb(0, 183, 255); */
 float: left;
 margin-left: 40px;
 border-right: 2px solid #d5d5d5;
}
.check .right p{
  /* background-color: aquamarine; */
  display: block;
  margin-top: -7px;
  text-indent: 2em;
 }
.check1 .right p{
  /* background-color: aquamarine; */
  display: block;
  margin-top: -7px;
  text-indent: 2em;
 }
 .check1 .left p{
  /* background-color: aquamarine; */
  display: block;
  margin-top: -7px;
  text-indent: 2em;
  font-size: 16px;
  margin-top: 80px;
 }
.check2{
 width: 100%;
 height: 500px;
 margin-top: 15px;
 /* background-color: aqua; */
 margin-bottom: 30px;
 border-bottom: 2px solid #d5d5d5;
 font-size: 16px;
 font-family:"华文仿宋", sans-serif;
 
}
.check2 img{
  width: 100%;
  height: 330px;
  background-size: 100% 424px;
  margin-top: 40px;
}
.check2 h3{
 display: block;
 padding-top:15px;
 font-size: 20px;
 margin-left: 10px;
 padding-left: 10px;
 margin-bottom: 20px;
}
.check2 .left{
 width: 47%;
 height: 424px;
 /* background-color: chartreuse; */
 float: left;
 margin-left: 20px;
 margin-bottom: 20px;
}
.check2 .right{
 width: 47%;
 height: 342px;
 /* background-color: rgb(0, 183, 255); */
 border-left: 2px solid #d5d5d5;
 float: right;
 margin-right: 20px;
 padding-top: 94px;
 padding-left: 20px;
}
.check2 .right p{
  display: block;
  margin-top: -7px;
  text-indent:2em ;
  width: 98%;
}
.bottom {
 width: 100%;
 height: 300px;
 background-color: rgb(1, 9, 59);
 color: white;
 margin-top: 235px;
}
.sum{
 width: 100%;
 height: 1702px;
  /* background-color: black;  */
}
.clearfix1::after {
 content: "";
 display: table;
 clear: both;
}
.containers {
  display: flex;
  /* flex-direction: column-reverse; */
  width: 100%; /* 确保容器宽度占满整个视口 */
  height: 300px;
  background-color: rgb(1, 9, 59);
  color: white;
  padding-top: 10px;
  padding-left: 10px;
  margin-top: 183px;
  font-size: 15px;
 } 
 
 .box {
  flex: 1; /* 每个盒子占据相等的空间 */
  /* border-right: 2px solid #d5d5d5; 可选：为了更清楚地看到每个盒子 */
  /* color: white; */
  margin-top: 80px;
  margin-left: 164px;
 
 }
 .box1 {
  flex: 1; /* 每个盒子占据相等的空间 */
  /* border-right: 2px solid #d5d5d5; 可选：为了更清楚地看到每个盒子 */
  /* color: white; */
  margin-top: 80px;
  padding-left: 341px;
 
 }
 .box2 {
  flex: 2; 
  
 }
 
 .first_image
 {
  width: 612px;
  height: 250px;
  /* background-color: brown;  */
  float: left;
  /* margin-left: 180px; */
  padding-top: 74px;
  padding-left: 54px;
 
 
 }
 .box2 .first_image span{
  /* justify-content:center;每个盒子占据相等的空间 */
 display: block;
  width: 204px;
  height: 164px;
  /* background-color: 100% 185px; */
  /* margin-left: 20px; */
  /* background-color: rgb(147, 165, 42); */
 }
 
 .first_image_img{

 float: left;
 width: 42%;
 height: 164px;
background: url("../images/JRerWeiMa.jpg") no-repeat;
 background-size: 67% 153px;
}
.first_image_img2{
 float: right;
 width: 42%;
 height: 164px;
 background: url("../images/jianrongDY.png") no-repeat;
 background-size: 78% 168px;
 } 

 .first_image_img3{
 float: right;
 width: 42%;
 height: 164px;
 background: url("../images/Xiaochengxu.jpg") no-repeat;
 background-size: 75% 162px;
 }
 .two_image
 {
  width: 27%;
  /* height: 75px; */
  background-color: rgb(1, 9, 59);
  float: right;
  padding-top: 45px;
  height: 250px;
  /* margin-right: 180px; */
 
 }
 
 .BeiAn1{
  width: 100%;
  background-color: rgb(1, 9, 59);
  height: 40px;
 
 }
 .BeiAn2 a{
  color: white;
  font-size: 14px;
   
 }
 .BeiAn2 span{
  color: white;
  padding-left: 28%;
  font-size: 14px;
 }
 .BeiAn2 .Dizhi{
  color: white;
  padding-left: 60px;
 }