* {
    margin: 0;
    padding: 0;
  }
a {
text-decoration: none;
font-weight: normal;
}
li {
list-style: none;
}
.firstline {
    position: absolute;
    width: 800px;
    height: 80px;
    left: calc((100% - 800px)/2);
    /* background-color: rgb(227, 169, 104); */
    z-index: 2;
}
.trademark {
    position: absolute;
    width: 9%;
    height: 58%;
    left: 8%;
    padding-top: 3.9%;
    padding-bottom: 0.5%;
    font-size: 1.8em;
    font-weight: bolder;
    font-family: 'Arial Black';
}
.trademark p {
  color: #3676ad;
}
.coname {
    position: absolute;
    width: 40%;
    height: 100%;
    left: 19%;
    padding-top: 4%;
    font-size: 1.8em;
    text-align: left;
    font-weight: bold;
    color: #3676ad;
}
.phonenumber {
    position: absolute;
    width: 52%;
    height: 100%;
    left: 69%;
    padding-top: 3%;
    /* background-color: #26a933; */
    font-size: 18px;
}
.phonenumber img {
    position: absolute;
    height: 25%;
    top: 18%;
}
.phonenumber p {
    position: absolute;
    left: 8%;
    top: 16%;
    color: #3676ad;
}
.emil {
    position: absolute;
    width: 52%;
    height: 100%;
    left: 69%;
    top: 23.5%;
    padding-top: 4.5%;
    /* background-color: #26a933; */
    font-size: 18px;
}
.emil img {
    position: absolute;
    height: 25%;
    /* top: 18%; */
}
.emil p {
    position: absolute;
    left: 8%;
    color: #3676ad;
}
.nav {
    position: absolute;
    width: 100%;
    height: 60px;
    margin-top: 100px;
    background-color: #3676ad;
}
.nav ul {
    position: absolute;
    width: 80%;
    height: 65%;
    display: flex;
    top: calc((60px - 65%)/2);
    left: calc((100% - 80%)/2);
    border-right: 1px solid #000;
}
.nav ul li {
    position: relative;
    height: 100%;
    flex: 1;
    font-family: "Microsoft YaHei";
    font-size: 25px;
    text-align: center;
    border-left: 1px solid #000;
    z-index: 2;
}
.nav ul li a{
    color: rgb(232, 232, 232);
}
/* 鼠标悬停后字体变粗 */
.nav ul li:hover .navword {
    font-weight: bold;
    color: white;
  }
.production {
    position: absolute;
    width: 100%;
    height: 780%;
    top: 126%;
    display: none;
    z-index: 2;
    background-color: #5080aa;
}
.production ul {
    position: absolute;
    display: block;
    width: 100%;
    height: 100%;
    top: 5%;
    left: 0;
    border-right: 0px;
}
.production ul li {
    width: 100%;
    height: 40px;
    font-family: "Microsoft YaHei";
    text-align: center;
    border-left: 0px;
}
.production ul li a:hover {
    font-weight: bold;
    color: white;
    border-bottom: 2.1px solid rgb(232, 232, 232);
}
.fade {
    font-size: 20px;
}
/* 透明遮挡 */
.mask {
    position: absolute;
    width: 100%;
    height: 300%;
    top: 160px;
    display: none;
    background-color: rgba(214, 214, 214, 0.6);
    z-index: 1;
}
/* 幻灯片 */
.powerpoint {
    position: absolute;
    width: 1540px;
    height: 500px;
    top: 160px;
    left: calc((100% - 1540px)/2);
}
/* 图片盒子 */
.pictures {
    position: relative;
    width: 1540px;
    height: 100%;
}
.picturesli img {
    width: 1540px;
    height: 100%;
}
/* 主要内容 */
.maincontent {
    position: relative;
    width: 1540px;
    height: 1500px;
    left: calc((100% - 1540px)/2 + 50px);
    top: 650px;
}
/* 左侧导航栏 */
.leftnav {
    position: absolute;
    width: 16%;
    height: 223px;
    font-size: 18px;
    font-family: "Microsoft YaHei";
}
.leftnav a {
    color: #000;
}
/* 左侧导航栏栏头 */
.navheader {
    position: relative;
    height: 38px;
    width: 95%;
    padding-left: 5%;
    padding-top: 4%;
    font-family: "Microsoft YaHei";
    font-size: 20px;
    color: white;
    background-color: #3d7aaf;
}
/* 左侧导航栏内容盒子 */
.navcontentdiv {
    position: absolute;
    width: 100%;
    height: 79%;
    background-color: rgba(228, 236, 247, 0.8);
}
/* 左侧导航栏内容 */
.navcontent {
    position: relative;
    left: 15%;
}
.leftnavli {
    margin: 3% 0;
    list-style-type: disc;
}
.leftcpxq {
    display: none;
}
.leftcpxq li {
    margin-top: 2%;
}
.leftcpxq li a {
    font-size: 18px;
}
.leftcpxq li:hover a {
    font-weight: bold;
    border-bottom: 1px solid #000;
}
.leftgcyj {
    display: none;
}
.leftgcyj li {
    margin-top: 2%;
}
.leftgcyj li:hover a {
    font-weight: bold;
    border-bottom: 1px solid #000;
}
/* 专用门禁设备内容 */
.content_AccessControlEquipment {
    position: absolute;
    width: 84%;
    height: 1550px;
    left: 16%;
}
.content_AccessControlEquipment_div {
    position: absolute;
    width: 80%;
    height: 90%;
    left: 10%;
}
.title {
    position: absolute;
    width: 100%;
    height: 50px;
    top: 20px;
    padding-top: 0.5%;
    text-align: center;
    font-family: "Microsoft YaHei";
    font-size: 30px;
    color: white;
    background-color: #3d7aaf;
}
.words {
    position: absolute;
    width: 99%;
    height: 1300px;
    top: 110px;
    left: 0.5%;
    font-family: "Microsoft YaHei";
    font-size: 25px;
}
.introduction {
    position: absolute;
    width: 100%;
    height: 20%;
    margin-left: 1.3%;
    text-indent: 2em;
    line-height: 200%;
}
.introduction-pic {
    position: absolute;
    width: 100%;
    height: 80%;
    top: 20%;
}
.introduction-pic li {
    width: 24%;
    height: 430px;
    margin-top: 3%;
    margin-left: 7%;
    float: left;
}
.cardreader {
    width: 100%;
    height: 75%;
}
.FingerprintMachine {
    width: 100%;
    height: 100%;
}
/* 尾部 */
.tail {
  position: absolute;
  height: 350px;
  width: 100%;
  top: 1880px;
  background-color: #29567eb4;
}
.tail-words {
  position: relative;
  height: 90%;
  width: 800px;
  top: 5%;
  left: calc((100% - 800px)/2);
}
.tailnav {
  position: relative;
  width: 100%;
  top: 23%;
}
.tailnav li {
  float: left;
  width: 20%;
  text-align: center;
}
.tailnav a {
  font-size: 25px;
  color: rgb(232, 232, 232);
  font-family: "Microsoft YaHei";
}
.tailnav li a:hover {
  color: white;
  font-weight: bold;
}
.tailcontact {
  position: absolute;
  width: 100%;
  top: 45%;
  font-size: 23px;
  color: rgb(232, 232, 232);
}
.tailcontact li {
  text-align: center;
  padding-top: 1%;
}
.tailcontact a {
  font-size: 23px;
  color: rgb(232, 232, 232);
  font-family: "Microsoft YaHei"; 
}