/* 公司简介 */
.company_profile {
  margin: 90px 0 0 0;
  padding: 70px 10%;
  text-align: center;
  box-sizing: border-box;
  background-image: url(../image/about_us/acae10c76e17be23a6775d41c309dd2.png);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.company_profile h4 {
  margin: 0 0 50px 0;
  font-weight: bold;
}

.company_profile h5 {
  margin: 0 0 55px 0;
  color: #00648E;
  font-weight: 500;
}

.company_profile span {
  font-weight: 300;
}

.rail_box img {
  display: block;
  width: 100%;
}

.publicity_box {
  display: flex;
  justify-content: space-between;
  padding: 120px 0 120px 10%;
}

.publicity_box .l,
.publicity_box .r {
  width: 49%;
}

.publicity_box .r img {
  display: block;
  width: 100%;
  height: 100%;
}

.publicity_box .l {
  position: relative;
}

.publicity_box .l h4 {
  margin: 0 0 55px 0;
}

.publicity_box .l h5 {
  margin: 0 0 75px 0;
}

.l_pbox {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: right;
}

.l_pbox::before {
  content: "";
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: block;
  width: 90%;
  height: 1px;
  background: #00648E;
  opacity: 0.2;
}

.l_pbox img {
  display: block;
  width: 25%;
}

.publicity_box .l span {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 40%;
  margin: 115px 0 0 0;
}

.five_unit {
  /* background-image: url(../image/about_us/背景\ \(2\).png); */
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

@media screen and (max-width: 1680px) {}

@media screen and (max-width: 1600px) {}

@media screen and (max-width: 1440px) {
  .company_profile {
    margin: 70px 0 0 0;
  }

  .company_profile h4 {
    margin: 0 0 40px 0;
    font-size: 30px;
  }

  .company_profile h5 {
    margin: 0 0 45px 0;
    font-size: 26px;
  }

  .publicity_box .l h4 {
    margin: 0 0 35px 0;
    font-size: 30px;
  }

  .publicity_box .l h5 {
    margin: 0 0 55px 0;
    font-size: 24px;
  }
}

@media screen and (max-width: 1366px) {
  .company_profile h4 {
    font-size: 28px;
  }

  .company_profile h5 {
    font-size: 24px;
  }

  .company_profile span {
    font-size: 18px;
  }

  .publicity_box .l h4 {
    font-size: 28px;
  }

  .publicity_box .l span {
    font-size: 18px;
  }

  .publicity_box {
    padding: 80px 0 80px 10%;
  }
}

@media screen and (max-width: 1280px) {}

@media screen and (max-width: 1024px) {
  .publicity_box .l span {
    margin: 40px 0 0 0;
  }
}

@media screen and (max-width: 980px) {}

@media screen and (max-width: 768px) {
  .unit a {
    font-size: 20px;
  }

  .company_profile h4 {
    margin: 0 0 20px 0;
    font-size: 20px;
  }

  .company_profile h5 {
    margin: 0 0 20px 0;
    font-size: 16px;
  }

  .five_unit {
    padding: 30px 0 50px 0;
  }

  .company_profile {
    margin: 30px 0 0 0;
  }

  .company_profile {
    padding: 30px 3%;
  }

  .company_profile span {
    font-size: 14px;
    letter-spacing: 1px;
  }

  .publicity_box {
    flex-wrap: wrap;
  }

  .publicity_box .l,
  .publicity_box .r {
    width: 100%;
  }

  .publicity_box .r {
    margin: 20px 0 0 0;
  }

  .publicity_box {
    padding: 80px 10% 80px 10%;
  }

  .publicity_box .l h4 {
    margin: 0 0 20px 0;
    font-size: 20px;
  }

  .publicity_box .l h5 {
    margin: 0 0 20px 0;
    font-size: 18px;
  }

  .publicity_box .l span {
    margin: 20px 0 0 0;
    font-size: 14px;
    line-height: 1.3;
  }

  .publicity_box .l span p {
    letter-spacing: 1px;
  }
}

@media screen and (max-width: 640px) {
  .unit a {
    font-size: 14px;
  }
}

@media screen and (max-width: 375px) {}