.menu-banner {
  width: 100%;
  height: 500px;
  background: url(/ClinicalResearchCenter/img/about.png) no-repeat #00683d;
  background-size: cover;
}
.menu-title {
  max-width: 1920px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  text-align: center;
}
.menu-title h2 {
  font-size: 40px;
  line-height: 2;
  color: #ffff;
  margin-top: 250px;
}

.about {
  background: #f6f6f6;

}
.about-item {
   position: relative; 
   margin: 50px 0;
}
.about-img{
    width: 50%;
    
}
.about-text{
    width: 60%;
    position: absolute;
    top: 50%;
    left: 40%;
    transform: translate(0, -50%);
    background: #fff;
    padding: 50px 50px;
    border-radius: 20px;
    box-shadow: 6px 6px 19px 0px rgb(0 0 0 / 4%);
}
.about-text h3{
    font-size: 24px;
    line-height: 1.5;
    font-weight: bold;
    margin-bottom: 10px;
}
.about-text p{
    font-size: 16px;
    line-height: 2;
    color: #6B6B6B;
}
.about-text a{
    display: block;
    text-align: right;
    font-size: 14px;
    line-height: 2;
    color: #00683d;
}
.about-content{
    min-height: 500px;
    padding: 20px 0;
    font-size: 16px;
    line-height: 2;
}
.about-content pp{
  margin-bottom: 20px;
}
/* ========== 4K 屏幕（<3840px） ========== */
@media (max-width: 3840px) {
}
/* ========== 2K 屏幕（<2560px） ========== */
@media (max-width: 2560px) {
  .warp {
    max-width: 1920px;
    padding: 20px 5%;
  }
  .fonter-min {
    padding: 20px 5%;
  }
}


/* ========== 大桌面/1080p（<1920px） ========== */
@media (max-width: 1920px) {
  .title {
    max-width: 1440px;
  }
  .Departments {
    max-width: 1440px;
  }
  .download-tab {
    max-width: 1440px;
  }
  .menu-title {
    max-width: 1440px;
        padding: 0 2%;
  }
  .warp {
    max-width: 1440px;
    padding: 20px 2%;
  }
}


/* ==========手机（<768px） ========== */
@media (max-width: 768px) {
  .menu-banner {
    height: 200px;
    background-position: -100px;
  }
  .menu-title h2 {
    font-size: 24px;
    margin-top: 100px;
    margin-left: 20px;
  }
    .about-item{
        display: flex;
        flex-direction: column;
    }
    .about-text{
        width: 100%;
        position: static;
        transform: translate(0, 0);
        padding: 20px 30px;
        border-radius: 0 0 20px 20px;
    }
    .about-img{
        width: 100%;
    }
    .warp {
        padding: 20px 5%;
    }
}