header {
  height: 520px;
  padding-top: 130px;
  color: #fff;
  background-color: #ff8a54;
  text-align: center;
}
header h2 {
  font-size: 40px;
  line-height: 2;
}
header .slogan {
  font-size: 18px;
  line-height: 2;
}
.section_desc {
  height: 600px;
  padding-top: 166px;
  background-color: #F9F9F9;
  position: relative;
}
.our_desc {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  margin: -220px auto 30px;
  width: 921px;
  padding: 20px 20px;
  background-color: #fff;
  -webkit-box-shadow: 0 6px 7px 0 rgba(0, 0, 0, 0.13), 0 -6px 7px 0 rgba(255, 103, 0, 0.06);
          box-shadow: 0 6px 7px 0 rgba(0, 0, 0, 0.13), 0 -6px 7px 0 rgba(255, 103, 0, 0.06);
  border-radius: 24px;
  z-index: 2;
}
.our_desc .our_desc_inner {
  padding: 10px 90px 20px;
  border: 1px solid #ff6700;
  border-radius: 24px;
}
.our_desc .content {
  margin-top: -10px;
  font-size: 18px;
  line-height: 1.8;
}
.image_desc_summary {
  display: block;
  margin: 50px auto 0;
}
section.roads {
  width: 1000px;
  margin: 0 auto;
  padding: 70px 0 30px;
}
.section_header {
  margin-bottom: 20px;
  font-size: 32px;
  color: #ff6700;
  line-height: 50px;
  position: relative;
  text-align: center;
}
.section_header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  width: 3.5em;
  height: 0;
  border-top: 2px solid #ff6700;
}
.roads_list {
  padding: 70px 0 50px;
}
.road_item {
  position: relative;
}
.road_item::before,
.road_item::after {
  content: '';
  display: block;
  clear: both;
}
.road_item:nth-of-type(even) .roads_item__main {
  float: left;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: reverse;
      -ms-flex-direction: row-reverse;
          flex-direction: row-reverse;
}
.road_item:nth-of-type(even) .dots {
  -webkit-box-orient: horizontal;
  -webkit-box-direction: reverse;
      -ms-flex-direction: row-reverse;
          flex-direction: row-reverse;
}
.roads_item__head {
  position: absolute;
  left: 50%;
  top: 0;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  width: 20px;
  height: 100%;
}
.roads_item__head .roads_item__head_inner {
  position: relative;
  height: 100%;
}
.roads_item__head .road__line {
  position: absolute;
  left: 10px;
  width: 2px;
  height: 100%;
  background-color: #ff6700;
}
.roads_item__head .road__anchor {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate3d(-50%, -50%, 0);
          transform: translate3d(-50%, -50%, 0);
  padding: 6px 10px;
  background-color: #fff;
}
.roads_item__head .anchor_icon {
  display: block;
  -webkit-box-sizing: content-box;
          box-sizing: content-box;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 4px solid #ff6700;
  background-color: #fff;
}
.roads_item__head .line--top {
  position: absolute;
  top: -30px;
  left: 10px;
  width: 1px;
  height: 30px;
  background-color: #ff6700;
}
.roads_item__head .top-arrow {
  position: absolute;
  top: -35px;
  left: 10px;
  -webkit-transform: translate(-50%) rotate(45deg);
      -ms-transform: translate(-50%) rotate(45deg);
          transform: translate(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background-color: #fff;
  border: 1px solid #ff6700;
  border-right-color: transparent;
  border-bottom-color: transparent;
}
.roads_item__head .line--bottom {
  position: absolute;
  bottom: -30px;
  left: 10px;
  width: 1px;
  height: 30px;
  background-color: #ff6700;
}
.roads_item__head .bottom-arrow {
  position: absolute;
  bottom: -35px;
  left: 11px;
  -webkit-transform: translate(-50%) rotate(45deg);
      -ms-transform: translate(-50%) rotate(45deg);
          transform: translate(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #fff;
  border: 1px solid #ff6700;
}
.roads_item__main {
  float: right;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
      -ms-flex-direction: row;
          flex-direction: row;
  -ms-flex-wrap: nowrap;
      flex-wrap: nowrap;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 20px 0;
  width: 480px;
}
.roads_item__main .dots {
  padding: 0 10px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
      -ms-flex-direction: row;
          flex-direction: row;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.roads_item__main .dots span {
  display: block;
  width: 12px;
  height: 12px;
  margin: 0 3px;
  border-radius: 50%;
  background-color: #ff6700;
}
.roads_item__main .dots span:nth-child(1) {
  opacity: .4;
}
.roads_item__main .dots span:nth-child(2) {
  opacity: .7;
}
.roads_item__main .calendar {
  margin: 0 10px;
  width: 84px;
  height: 60px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  border: 4px solid #FFBA53;
  border-radius: 5px;
  text-align: center;
  line-height: 27px;
  font-weight: 700;
}
.roads_item__main .calendar .year {
  color: #ff6700;
  background-color: #fff;
  font-weight: 700;
}
.roads_item__main .calendar .month {
  color: #fff;
  background-color: #ff6700;
  font-weight: 700;
}
.roads_item__main .content {
  -webkit-box-flex: 0;
      -ms-flex: 0 1 270px;
          flex: 0 1 270px;
  color: #2B2B2B;
  font-size: 18px;
  text-align: justify;
}
.top_clients {
  padding: 40px 0 20px;
  background: url(/images/aboutus/bg_tree.png) center / cover no-repeat;
}
.top_clients_inner {
  margin: 90px auto 0;
  width: 1000px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.top_clients_inner .left {
  width: 500px;
  text-align: center;
  vertical-align: top;
}
.top_clients_inner .right {
  padding-top: 20px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
}
.top_clients_inner .right .slogans {
  font-size: 18px;
  line-height: 40px;
}
.top_clients_inner .img_tree_slogan {
  margin-top: 50px;
}
@media screen and (min-width: 700px) {
  .div_tree_slogan,
  .progress {
    display: none;
  }
}
@media screen and (max-width: 700px) {
  header {
    width: 100vw;
    height: auto;
    padding-bottom: 60px;
  }
  header h2 {
    font-size: 24px;
  }
  header .slogan {
    font-size: 16px;
    padding: 0 12px;
  }
  .section_desc {
    height: auto;
    padding-top: 30px;
  }
  .section_desc .our_desc {
    padding: 10px 10px;
    border-radius: 10px;
    position: static;
    width: 90vw;
    margin: 0 5vw;
  }
  .section_desc .our_desc .our_desc_inner {
    padding: 10px 20px 20px;
    border-radius: 10px;
  }
  .section_desc .our_desc .section_header {
    font-size: 24px;
  }
  .section_desc .our_desc .content {
    font-size: 16px;
  }
  .section_desc .image_desc_summary {
    display: block;
    margin: 50px 5vw;
    width: 90vw;
  }
  .roads {
    display: none;
  }
  .top_clients {
    background: none;
    padding: 40px 0 0;
  }
  .top_clients .section_header {
    width: 100vw;
    font-size: 24px;
  }
  .top_clients .top_clients_inner {
    width: 100vw;
    margin: 0;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: reverse;
        -ms-flex-direction: column-reverse;
            flex-direction: column-reverse;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
  }
  .top_clients .top_clients_inner .left {
    width: 90vw;
  }
  .top_clients .top_clients_inner .right {
    width: 90vw;
  }
  .top_clients .top_clients_inner .right .slogans {
    text-align: center;
    font-size: 16px;
    line-height: 28px;
  }
  .top_clients .top_clients_inner .right .sense_worth {
    padding: 2px;
    border-radius: 12vw 8px 8px 12vw;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    margin: 20px 0;
  }
  .top_clients .top_clients_inner .right .sense_worth .sense_worth_round {
    font-size: 14px;
    width: 12vw;
    height: 12vw;
    line-height: 1;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    border-radius: 50%;
    background: #fff;
  }
  .top_clients .top_clients_inner .right .sense_worth .sense_worth_tip {
    text-align: center;
    font-size: 16px;
    line-height: 12vw;
    width: 80vw;
    height: 12vw;
    color: #fff;
    font-weight: 500;
    font-style: italic;
  }
  .progress {
    width: 100vw;
    background: #fff url(/images/aboutus/progress.png) no-repeat scroll top left / 100vw 100%;
    color: #fff;
    line-height: 30px;
    padding: 30px 5vw;
    font-size: 16px;
  }
  .progress .section_header {
    color: #fff;
    font-size: 24px;
  }
  .progress .section_header::after {
    border-top: 2px solid #fff;
  }
  .progress u:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    -webkit-transform: translateX(-50%);
        -ms-transform: translateX(-50%);
            transform: translateX(-50%);
    width: 3.5em;
    height: 0;
    border-top: 2px solid #fff;
  }
  .progress .progress_list {
    border-left: 2px solid #fff;
    padding: 30px 0 30px 40px;
    margin-top: 20px;
    position: relative;
  }
  .progress .progress_list::after {
    content: "";
    position: absolute;
    left: -6px;
    bottom: -6px;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 15px solid #fff;
  }
  .progress ul {
    margin-bottom: 50px;
    position: relative;
  }
  .progress ul li:first-child {
    font-size: 18px;
  }
  .progress ul li:first-child::before {
    content: "";
    width: 10px;
    height: 10px;
    border: 2px solid #ff6700;
    border-radius: 10px;
    position: absolute;
    left: -48px;
    top: 8px;
    z-index: 10;
  }
  .progress ul::before {
    content: "";
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: 10px;
    position: absolute;
    left: -50px;
    top: 6px;
    z-index: 9;
  }
  .img_tree_slogan {
    display: none;
  }
}