html,body,div,p,h1 {
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  font-size: 16px;
}

.box_w {
  width: 1090px;
  margin: 0 auto;
  padding-left: 5px;
  padding-right: 5px;
  box-sizing: border-box;
}

.header_container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header_container .company {
  font-size: 18px;
  color: #ffffff;
}
.header_container ul {
  display: flex;
  align-items: center;
  list-style: none;
}  
.header_container li {
  margin-left: 20px;
}
.header_container a {
  color: #ffffff;
}
.about_header {
  min-width: 1090px;
  width: 100%;
  background-color: rgb(30, 32, 45);
}
.main_banner {
  height: 100vh;
  min-width: 1090px;
  width: 100%;
  background-image: url(../img/homebanner.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}
.main_banner_content {
  padding-top: 20vh;
  box-sizing: border-box;
}
.box_w_title {
  width: 50%;
}
.box_w_title>h1 {
  font-size: 62px;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 10px;
}
.box_w_title_1 {
  color: rgb(194, 193, 193);
}
.main_1_bg {
  min-width: 1090px;
  width: 100%;
  background-color: rgb(30, 32, 45);
  padding-top: 300px;
  box-sizing: border-box;
  padding-bottom: 100px;
  box-sizing: border-box;
}
.content_1 {
  width: 557px;
  margin: 0 auto;
}
.whychoose {
  font-size: 26px;
  color: #0FD452;
  font-weight: normal;
}
.whychoose_1 {
  font-size: 56px;
  color: #ffffff;
  margin-bottom: 300px;
}
.whychoose_2 {
  font-size: 56px;
  color: #ffffff;
}
.whychoose_img_box>img {
  display: block;
  width: 100%;
}
.whychoose_img_box {
  margin-bottom: 100px;
}
.mar_bot_50 {
  margin-bottom: 50px;
}
.step_info {
  width: 25%;
}
.step_info_top>img {
  display: block;
  width: 100%;
  margin-bottom: 15px;
}
.step_info_bottom>p {
  font-size: 17px;
  font-weight: bold;
  color: #ffffff;
  text-align: center;
}
.howwork_list {
  display: flex;
  align-items: center;
}
.ownboss {
  display: flex;
  justify-content: space-between;
  padding-top: 100px;
  padding-bottom: 150px;
  box-sizing: border-box;
}
.ownboss_l {
  width: 40%;
  padding-right: 30px;
  box-sizing: border-box;
}
.ownboss_l>h1 {
  font-size: 56px;
  color: black;
}
.ownboss_r {
  flex: 1;
}
.ownboss_r>img {
  display: block;
  width: 100%;
}
footer {
  min-width: 1090px;
  width: 100%;
  background-color: rgb(30, 32, 45);
  color: rgb(194, 193, 193);
  padding: 80px 0;
  box-sizing: border-box;
}
.footercontent {
  display: flex;
  justify-content: space-between;
}
.about_banner {
  display: flex;
  justify-content: center;
  padding-top: 70px;
  padding-bottom: 60px;
  box-sizing: border-box;
}
.about_banner_l {
  width: 40%;
}
.about_banner_l>h1 {
  font-size: 64px;
}
.about_banner_r {
  flex: 1;
  padding-top: 50px;
  box-sizing: border-box;
}
.about_banner_r>img {
  display: block;
  width: 100%;
}
.about_mission {
  min-width: 1090px;
  width: 100%;
  background-color: rgb(237, 242, 243);
  padding-top: 100px;
  padding-bottom: 100px;
  box-sizing: border-box;
}
.about_mission>div {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mission_title {
  font-size: 60px;
}
.about_mission_l,.about_mission_r{
  width: 47%;
}
.about_mission_l>img {
  width: 100%;
}
.about_mission_r p {
  margin: 20px 0;
  font-size: 21px;
}
.about_value_title {
  font-size: 43px;
}
.about_value_l {
  width: 30%;
  margin-right: 10px;
}
.about_value_r {
  flex: 1;
}
.about_r_flex {
  display: flex;
  justify-content: space-between;
  margin-bottom: 70px;
}
.about_value {
  display: flex;
  justify-content: space-between;
  padding-top: 100px;
  padding-bottom: 130px;
  box-sizing: border-box;
}
.about_value_box {
  width: 45%;
}
.about_value_img {
  width: 60px;
  height: 60px;
  margin-bottom: 10px;
}
.about_value_title {
  font-size: 43px;
  margin-bottom: 10px;
}
.about_value_desc {
  line-height: 1.5;
  color: #4F4F4F;
}