/* 展示栏开始 */
.display_bar {
  /* max-height: 1000px; */
  height: 100vh;
  width: 100%;
  background: url(http://sz-static-file.sanzhisoft.com/website/img/gsdtdt.gif) no-repeat center;
  text-align: center;
  position: relative;
  background-size: 100% 100%;
}

.display_bar h1 {
  font-size: 39px;
  font-family: "I-2-65";
  margin-bottom: 22px;
  color: #FFFFFF;
  transition: all 1.5s ease;
}

.display_bar h3 {
  font-size: 16px;
  font-family: "I-2-45";
  color: #FFFFFF;
  transition: all 1.5s ease;
}
.display_bar p {
  width: 70%;
  margin-top: 60px;
  font-size: 16px;
  font-family: "I-2-45";
  color: #FFFFFF;
  line-height: 36px;
  transition: all 1.5s ease;
}
.display_bar video{
  width: 100%;
  height: 100%;
  object-fit: cover; /* 保持视频的宽高比，同时视频会填充整个容器 */
}
.display_content{
  width: 50%;
  float: right;
  text-align: left;
  padding: 0 0 0 5%;
}
.exhibition_nav{
  height: 100px;
  backdrop-filter: blur(2px);
  position: absolute;
  bottom: 0;
  width: 100%;
  border-bottom: 1px rgba(255, 255, 255,0.5) solid;
  border-top: 1px rgba(255, 255, 255,0.5) solid;
  z-index: 100;
}
.exhibition_nav .exhibition_nav_item{
  width: 360px;
  height: 100px;
  display: inline-block;
  vertical-align: top;
  cursor: pointer;
  position: relative;
  padding: 23px 0 0 0;
}
.exhibition_nav_item::after{
  content: "";
  height: 40px;
  width: 1px;
  border: 1px solid rgba(238,238,238,0.3);
  position: absolute;
  right: 0;
  top: 29px;
}
.exhibition_nav_item h3 img{
  vertical-align: middle;
  margin-right: 10px;
  position: relative;
  bottom: 2px;
}
.exhibition_nav_item h3 span{
  font-size: 20px;
  font-family: "I-2-55";
  color: #EEEEEE;
}
.exhibition_nav_item p{
  margin-top: 5px;
  font-size: 16px;
  font-family: "I-2-45";
  color: rgba(238,238,238,0.7);
}
/* 展示栏结束 */
 

/* 公司简介开始 */
.introduce_middle{

}
.introduce_middle .company_profile{
  height: 253px;
  padding-top: 70px;
  text-align: center;
}
.introduce_middle .company_profile h3{
  font-size: 28px;
  font-family: "I-2-65";
  color: #2C3C4D;
}
.introduce_middle .company_profile p{
  margin-top: 15px;
  font-size: 16px;
  font-family: "I-2-45";
  color: #647D94;
}
.introduce_middle .introduction{
  width: 1530px;
  height: 462px;
  background: #F6F9FB;
  margin: auto;
  padding: 65px 80px;
}
.introduce_middle .introduction div{
  display: inline-block;
  vertical-align: top;
  width: 752px;
  line-height: 36px;
}
.introduce_middle .introduction p{
  padding: 50px 0 0 65px;
  font-size: 16px;
  color: #2C3C4D;
  text-indent: 2em;
}
.introduce_middle .introduction b{
  font-size: 16px;
}
/* 公司简介结束 */
 
/* 技术储备开始  */
.tachnical_storage{
  height: 450px;
  padding-top: 83px;
  text-align: center;
  background: url(http://sz-static-file.sanzhisoft.com/website/img/technology_bg.png);
  background-size: 100% 100%;
}
.tachnical_storage h5{
  font-size: 28px;
  color: #2C3C4D;
  font-family: "I-2-65";
}
.tachnical_storage span{
  font-size: 16px;
  color: #647D94;
  font-family: "I-2-45";
  margin: 15px 0 65px;
  display: inline-block;
}
.tachnical_storage p{
  font-size: 16px;
  color: #2C3C4D;
  font-family: "I-2-45";
  line-height: 39px;
}
.tachnical_storage b{
  font-size: 16px;
  color: #2C3C4D;
}
/* 技术储备结束  */
 
 
 
 
 
 
 
 
 
 
 /* 联系我们开始 */
.contact_us {
  width: 100%;
  height: 470px;
  overflow: hidden;
  position: relative;
}

.contact_us video {
  width: 100%;
}

.contact_us .contact_us_content {
  width: 100%;
  height: 100%;
  background: rgba(21, 72, 76, 0.3);
  position: absolute;
  top: 0;
  left: 0;
  text-align: center;
  padding-top: 120px;
  z-index: 99999;
}

.contact_us video {
  filter: brightness(0.8) contrast(1.2) saturate(1.5) grayscale(0.5);
}

.contact_us .contact_us_content h1 {
  font-family: "I-2-65";
  font-size: 36px;
  color: #FFFFFF;
}

.contact_us .contact_us_content h2 {
  font-family: "I-2-45";
  font-size: 18px;
  color: #FFFFFF;
  margin: 30px 0 60px;
}

.contact_us .contact_us_content button {
  width: 300px;
  height: 72px;
  background: #2E9FFF;
  border: 1px solid #2E9FFF;
}

.contact_us .contact_us_content button span {
  font-size: 20px;
  color: #FFFFFF;
}

.contact_us .contact_us_content button img {
  position: relative;
  bottom: 6px;
  left: 6px;
}

/* 联系我们结束 */