body,
form,
div,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
span,
table,
tr,
th,
td,
p,
input,
dl,
dt,
dd,
ul,
ol,
li,
input,
textarea,
a,
label {
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
}

.nav_html_title {
  width: 1280px;
  margin: 0 auto;
  padding: 30px 150px;
  box-sizing: border-box;
}
.nav_html_title>div:nth-child(1){
  border-bottom: 1px rgba(0, 0, 0, 0.1) solid; 
}
.nav_html_title>div:nth-child(1)>span>a {
  font-weight: 500;
  font-size: 14px;
  line-height: 27px;
  color: #222a41;
  padding: 0 5px;
  transition: all 0.5s;
}

.nav_html_title>span>a:hover {
  /* color: red; */
  text-decoration: underline;
}

.about_us_content {
  width: 100%;
}

.company_profile {
  width: 100%;
  padding-top: 70px;
  /* display: flex; */
}



.company_profile>div:nth-child(1)>img {
  width: 100%;
  height: 100%;
}

.company_profile>div:nth-child(2) {
  width: -webkit-fill-available;
  word-break: break-all;
  box-sizing: border-box;
  min-height: 400px;
  /* padding: 40px 0px 100px 90px; */
}

.video_go_btn {
  width: 70px;
  height: 70px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.company_profile>div:nth-child(2)>.fuwenben_ img{
 width: auto;
 height: auto;
 max-width: 100%;
 max-height: 100%;
} 
.company_profile>div:nth-child(2)>h1 {
  color: #222a41;
  font-size: 38px;
  line-height: 38px;
}

.company_profile>div:nth-child(2)>h2 {
  color: #222a41;
  font-size: 24px;
  line-height: 24px;
  padding: 10px 0 40px 0;
}

.company_profile>div:nth-child(2)>.fuwenben_ {
  font-size: 15px;
  font-weight: 400;
  color: #6d7783;
  line-height: 24px;
  width: 100%;
  box-sizing: border-box;
}







@media only screen and (max-width:760px) {
  .nav_html_title {
    width: 100%;
    padding: 10px 0px;
  }

  .company_profile>div:nth-child(1) {
    margin: 0 0 30px 0;
    width: 100%;
    height: auto;
  }

  .company_profile>div:nth-child(2)>.fuwenben_ {
    padding: 0 20px 20px 20px;
  }

  .company_profile>div:nth-child(2)>h1 {
    padding-left: 20px;
  }

  .company_profile>div:nth-child(2)>h2{
    padding-left: 20px;
  }
}