.banner {
  width: 100%;
  height: auto;
  position: relative;
  padding-bottom: 56.25%;
}

.banner .i {
  width: 100%;
  height: 100vh;
  z-index: 1;
  position: absolute;
  top: 0;
  left: 0;
}

.banner video {
  width: 100%;
}
.banner iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 97%;
}
.company_philosophy {
  width: 100%;
  /* height: 100vh; */
  padding: 80px 20px;
  position: relative;
  background: url(../images/index/philosophy.jpg) no-repeat 50% / cover;
}
.company_philosophy .car_box {
  width: 40%;
  height: 70%;
  position: absolute;
  bottom: 0;
  left: 0;
  display: flex;
  align-items: flex-end;
  /* background: red; */
  /* 向X移动5px */
}
.company_philosophy .car_box img {
  width: 100%;
  /* 镜像 */
  transform: scaleX(-1) translateX(5px);
  opacity: 0;
  transition: all 0.5s;
}
.company_philosophy .car_box .fill {
  opacity: 1;
  transform: scaleX(-1) translateX(-5px);
}

.company_philosophy .company_philosophy_box {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.company_philosophy_box .top {
  width: 100%;
  /* background-color: red; */
}

.company_philosophy_box .top_box {
  width: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #fff;
}

.company_philosophy_box .top_box .title {
  margin-bottom: 30px;
}

.company_philosophy_box .top_box .title h1 {
  font-weight: 400;
}

.company_philosophy_box .top_box .title span {
  font-size: 19px;
}

.company_philosophy_box .middle {
  width: 100%;
  display: flex;
  justify-content: end;
}

.company_philosophy_box .middle_box {
  width: 50%;
}

.company_philosophy_box .middle_box h1 {
  color: #ffffff;
  font-size: 3rem;
  margin-top: 100px;
  transform: translateX(20px);
  transition: all 0.5s;
}
.company_philosophy_box .middle_box .title_fill {
  transform: translateX(0);
}

.company_philosophy_box .bottom {
  width: 100%;
  display: flex;
  justify-content: end;
}

.company_philosophy_box .bottom_box {
  width: 50%;
  margin-top: 100px;
  /* padding: 0 20px; */
}

.company_philosophy_box .bottom_box a {
  display: flex;
  font-size: 18px;
  color: black;
  text-decoration: none;
  width: 55%;
  justify-content: center;
  padding: 30px 0;
  background-color: #ffffffc2;
}

.our_business {
  width: 100%;
  /* height: 520px; */
  padding: 60px 0px;

  background: url(../images/index/business.jpg) no-repeat center 50% / cover;
}

.our_business .our_business_box .top {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: end;
  padding: 0 20px;
}

.our_business .our_business_box .left,
.our_business .our_business_box .right {
  width: 50%;
  padding: 0 20px;
  display: flex;
  justify-content: center;
}

.our_business .our_business_box a {
  display: block;
  padding: 20px 50px;
  text-decoration: none;
  background-color: #ffffff;
  color: black;
}

.our_business .our_business_box .right {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.our_business .our_business_box .right h1 {
  font-weight: 400;
  font-size: 32px;
  color: #fff;
}

.our_business .our_business_box .right .text {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.our_business .our_business_box .right h1 span {
  font-size: 19px;
}

.our_business .our_business_box .right p {
  color: #fff;
  padding: 40px 0;
}

.our_business .our_business_box .bottom {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  padding: 20px 20px;
}

.our_business .our_business_box .bottom .left {
  width: 50%;
  display: flex;
  justify-content: center;
}

.our_business .our_business_box .bottom .right {
  width: 50%;
  display: flex;
  justify-content: center;
}

@media (max-width: 780px) {
  .company_philosophy_box .top {
    display: flex;
    justify-content: center;
  }

  .company_philosophy_box .top_box {
    width: 100%;
  }

  .company_philosophy_box .middle_box {
    width: 100%;
  }

  .company_philosophy_box .bottom_box {
    width: 100%;
    display: flex;
    justify-content: center;
  }
  .company_philosophy .car_box {
    display: none;
  }

  .our_business {
    background: none;
    background-color: #1e68af;
  }

  .our_business .our_business_box .left {
    display: none;
  }

  .our_business .our_business_box .left,
  .our_business .our_business_box .right {
    width: 100%;
  }

  .our_business .our_business_box .bottom {
    flex-direction: column;
  }

  .our_business .our_business_box .bottom .left,
  .our_business .our_business_box .bottom .right {
    width: 100%;
  }

  .our_business .our_business_box .bottom .right {
    margin-top: 20px;
  }
}