body{
    background-color: white;
    width: 1920px;
}

.CI_Head{
    background-color: black;
}

/**/
.CI_TitleHead{
    background-color: black;
    
}

.homepage1{
    background-color: black;
  
}

.CI_TitleHead_img{
    width: 296px;
    height: 80px;
    position: relative;
    left: 300px;
    background-color: black;
}

/*瀵艰埅鏍忚缃�*/
.CI_NavigationBar_ul{
    position: relative;
    list-style-type:none;
    line-height: 36px;
    background-color: black;
    text-align: center;
    margin-left: 1px;
    left: 400px;
}

/*涓€绾ц彍鍗�*/
li{
    display: inline;
    line-height: 40px;
    float: left;
}

/*涓€绾ц彍鍗�*/
a{
    text-decoration: none;
    color:white;
    font-size: 18px;
    margin: 0;
    padding: 9px 40px;
    word-spacing: 4px;
}

/*涓€绾ц彍鍗�*/
a:hover{
    background-color: blue;
}

/*涓€绾ц彍鍗�*/
a:visited{
    background-color: red;
}

.CI_Navigation_Bar_h1_bb>a:hover {
    /*  background-color: #555;*/
     color: white;
      /* 显示块 */
      /* display: block; */
  }


  /*一级菜单单击效果*/
  .CI_NavigationBar_ul li:hover .CI_NavigationBar_h2_ul{
      display: block;
  }


/*一级菜单和二级菜单的联动*/
.CI_NavigationBar_h2_ul{
    position:absolute;
    /*  */
    top:0px;
    /*  */
    width: 200px;
    background-color: red;
    display: none;
    color:white;
    /*  */
}

/**/
.CI_NavigationBar_h2_ul>li>a:hover{
    background-color: #555;
    color: white;
    display: block;
}

/**/
.CI_Introduction_Head{
    margin-top: 50px;
    margin-left: 100px;
    position: relative;
}

/**/
.CI_Introduction_Table{
    margin-left: 700px;
    position: relative;
}

.CI_Introduction_Bt1{
    width: 100px;
    height: 50px;
    color: black;
    font-size: 20px;
    text-decoration: underline; 
    text-align: center;
    border: 0px;
    font-weight: bold;
}

.CI_Introduction_Bt2{
    margin-left: 50px;
    width: 100px;
    height: 50px;
    color: black;
    font-size: 20px;
    text-decoration: underline; 
    text-align: center;
    border: 0px;
    font-weight: bold;
}

.CI_Introduction_Bt3{
    margin-left: 50px;
    width: 100px;
    height: 50px;
    color: black;
    font-size: 20px;
    text-decoration: underline; 
    text-align: center;
    border: 0px;
    font-weight: bold;
}

/*涓績绠€浠嬧€斺€攄iv*/
.CI_CentralIntroduction_Content_div{
    margin: auto;
    position: relative;
    font-size: 18px;
}

/*鐮旂┒璁惧鈥斺€攄iv*/
.CI_Equipment_div{
    margin: auto;
    position: relative;
}

/*瀹為獙瀹も€斺€攄iv*/
.CI_Laboratory_div{
    margin: auto;
    position: relative;
}


.CI_CentralIntroduction_Content_sub_div{
    position: relative;
    width: 800px;
    margin: auto;
}

.CI_CentralItroduction_Content_Section1_p{
    text-align: justify;
    position: relative;
    text-indent: 30px;
}

.CI_CentralItroduction_Content_Section2_p{
    text-align: justify;
    position: relative;
    text-indent: 30px;
}

.CI_Introduction_Img_div{
    margin-left: 500px;
    position: relative;
}

.CI_Equipment_text{
	text-align: justify;
    position: relative;
    text-indent: 30px;
}

.CI_Introduction_Equipment_Img{
	margin-left: 500px;
    position: relative;
}

.CI_Equipment_respiratory_zone{
	text-align: justify;
    position: relative;
    text-indent: 30px;
}

.CI_Equipment_respiratory_zone_img{
	margin-left: 500px;
    position: relative;
}

.CI_Laboratory_Section1{
	text-align: justify;
    position: relative;
    text-indent: 30px;
}

.CI_Laboratory_Section2{
	text-align: justify;
    position: relative;
    text-indent: 30px;
}

.CI_Laboratory_Section3{
	text-align: justify;
    position: relative;
    text-indent: 30px;
}

.CI_Laboratory_introduction_div_img{
	margin-left: 500px;
    position: relative;
}

/*涓績绠€浠嬧€斿瓙椤甸潰鈥斿悎鐓mg*/
.CI_Introduction_Img{
    width: 900px;
    /*margin-left: 600px;*/
    position: relative;
}

/*搴曢儴鏍忔晥鏋�*/
.CI_Bottom_Footer{
    margin-top: 200px;
}

.CI_Bottom_Footer{
    clear: both;
    background-color: black;
    height: 200px;
    width: 1920px;
    position: relative;
   /*缁欑埗鍏冪礌娣诲姞杩欎袱涓睘鎬э紝鍗冲彲璁╁瓙鍏冪礌鐨勫浘鐗囧瀭鐩村眳涓紝涓旂埗鍏冪礌鐨刟lign-items: center 涓轰笉鍙己灏戝睘鎬�*/
    display: flex;
    align-items: center;
}

.CI_Bottom_Picture{
    position: absolute;
    top:30%;
    left:45%;
    transform: translate(-30%, -45%);
}

.CI_Bottom_Footer_Text1{
    color: white;
    font-size: 18px;
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-55%, -50%);
    display: inline-block;
}

.CI_Bottom_Footer_Text2{
    color: white;
    font-size: 18px;
    position: absolute;
    top: 76%;
    left: 50%;
    transform: translate(-70%, -50%);
    display: inline-block;
}