*{
  margin: 0;
  padding: 0;
}
.index_m {
  display: none;
}
.index {
  width: 100%;
  min-height: 100vh;
  background: #fff;
  display: block;
}
.header {
  display: flex;
  height: 60px;
  width: 100%;
  background: #fff;
  justify-content: center;
}
.header_content {
  width: 1200px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header_content img {
  width: 153px;
  height: 43px;
}
.header_content a {
  text-decoration: none;
  width: 104px;
  height: 40px;
  background: #47C08D;
  color: #fff;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.introduce {
  width: 100%;
  height: 400px;
  background: url('./img/bg_top.png');
  background-size: cover;
  padding-top: 89px;
  padding-left: 404px;
  box-sizing: border-box;
}
.introduce div {
  font-size: 40px;
  color: #fff;
  font-weight: 600;
}
.introduce p {
  padding-top: 24px;
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  max-width: 640px;
  word-break: break-all;
  white-space: wrap;
}
.department {
  width: 100%;
  display: flex;
  justify-content: center;
}
.department_content {
  width: 1200px;
  display: flex;
  justify-content: space-between;
  padding: 100px 0 48px;
}
.department_content_item {
  width: 376px;
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 378px;
  padding: 0 24px;
  box-sizing: border-box;
}
.department_content_item_bg {
  width: 100%;
  height: 281px;
  transform: translateY(-28px);
}
.department_content_item_icon {
  width: 88px;
  height: 88px;
  transform: translateY(-72px);
}
.department_content p{
  transform: translateY(-52px);
  font-size: 20px;
  color: #000000;
}
.benefit {
  width: 100%;
  height: 300px;
  background: url('./img/bg_bottom.png');
  background-size: cover;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  padding: 75px 0;
}
.benefit_content {
  width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.benefit_title {
  font-size: 34px;
  font-weight: 600;
  color: #fff;
  padding-bottom: 40px;
}
.benefit_main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.benefit_main_item {
  color: #fff;
  font-size: 24px;
  display: flex;
  align-items: center;
}
.benefit_main_item img {
  width: 60px;
  height: 60px;
  margin-right: 12px;
}
.bottom {
  width: 100%;
  display: flex;
  justify-content: center;
  background: #0D1C16;
  padding: 32px 0;
}
.bottom_content {
  width: 1200px;
  display: flex;
  align-items: center;
  flex-direction: column;
}
.bottom_content_contact {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.bottom_content_contact p {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}
.bottom_content_contact span {
  padding-top: 8px;
  font-size: 14px;
  color: #fff;
}
.bottom_Copyright {
  padding: 8px 0 0;
  font-size: 14px;
  color: rgba(255,255,255,0.5);
}
.bottom_Copyright a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
}

.otc {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.otc_content {
  width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.otc_title {
  padding-bottom: 32px;
  font-size: 36px;
  color: #333;
  font-weight: 600;
}
.otc_des {
  font-size: 16px;
  color: #666;
  text-indent: 2em;
  padding-bottom: 32px;
}
.otc_video {
  margin-bottom: 96px;
  position: relative;
}
.icon_play {
    width: 72px;
    height: 72px;
    position: absolute;
    z-index: 99;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
}

.brand_title {
  padding-bottom: 48px;
  font-size: 36px;
  color: #333;
  font-weight: 600;
}
.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  overflow: hidden;
}
.brand_content {
  width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand_inner {
  width: 1200px;
  overflow: hidden;
  position: relative;
  padding-bottom: 20px;
}
.brand_line {
  display: flex;
  align-items: center;
  padding-bottom: 20px;
  flex-wrap: nowrap;
}
.brand_line {
  height: 104px;
}
.row_right_animation {
  animation: 20s rowup-right linear infinite alternate;
  transform: translateX(-640px);
}
@keyframes rowup-right {
  0% {
    transform: translate3d(-640px, 0, 0);
  }
  100% {
      transform: translate3d(0px, 0, 0);
  }
}
.row_left_animation {
  animation: 20s rowup-left linear infinite alternate;
}
@keyframes rowup-left {
  0% {
    transform: translate3d(0px, 0, 0);
  }
  100% {
      transform: translate3d(-640px, 0, 0);
  }
}
.mask_left {
  width: 150px;
  height: 372px;
  background: linear-gradient(
    to left,
    rgba(255, 255, 255, 0) 0%,
    #fff 100%
  );
  border-radius: 0px 0px 0px 0px;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
}
.mask_right {
  width: 150px;
  height: 372px;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    #fff 100%
  );
  border-radius: 0px 0px 0px 0px;
  position: absolute;
  right: 0;
  top: 0;
  z-index: 1;
}