.quality-box {
  width: 100%;
  padding-top: 5vw;
  padding-bottom: 5vw;
}

.quality-box-a {
  background-color: #fff;
}

.pc_div {
  display: block;
}

.phone_div {
  display: none;
}

.f40 {
  font-size: 40px;
}

.f16 {
  font-size: 16px;
}

.quality-top {
  display: flex;
  justify-content: space-between;
}

.quality-top-a {
  display: flex;
  align-items: top;
  margin-bottom: 80px;
}

.span-box {
  width: 70%;
  line-height: 36px;
}

.quality-flex {
  display: flex;
  justify-content: space-between;
  margin-top: 54px;
}

.quality-bg {
  /* background-image: url(../images/science/qulity-c.png);
  background-position: top;
  background-repeat: no-repeat;
  background-size: 100% auto; */
  overflow: hidden;
  padding: 57px 44px;
  border-radius: 22px 22px 22px 22px;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  /* color: #fff; */
}

.quality-bg h2 {
  margin-bottom: 23px;
}

.quality-bg span {
  line-height: 30px;
}

.f24 {
  font-size: 24px;
}

.quality-bg-box {
  width: calc((100% - 60px) / 3);
  position: relative;
}

.quality-bg-box img {
  width: 100%;
  height: auto;
}

.quality-bg-box :hover.quality-bg {
  /* background-image:none ; */
  color: #fff;
  background: linear-gradient(157deg, #23863c 0%, #1d6e66 50%, #175691 100%);
}

.quality-num {
  /* font-family: Microsoft YaHei, Microsoft YaHei;
  font-weight: bold;
  font-size: 114px; */
  /* color: #000000; */
  /* text-stroke: 1px #707070;
  text-align: left;
  font-style: normal;
  text-transform: none;
  -webkit-text-stroke: 1px #707070; */
  position: absolute;
  top: -10px;
  left: 30px;
  font-weight: bold;
  font-size: 114px;
  color: transparent;
  /* 文字颜色设置为透明 */
  -webkit-text-stroke: 1px #00000026;
  /* 文字描边，可以根据需要调整颜色和宽度 */
  background-image: url("your-image-url.jpg");
  /* 背景图片 */
  background-clip: text;
  /* 背景仅应用于文字区域 */
  -webkit-background-clip: text;
  /* 兼容WebKit浏览器 */
  display: inline-block;
}

.quality-bg-box:hover .quality-num {
  -webkit-text-stroke: 1px #fdfdfd26;
  /* 文字描边，可以根据需要调整颜色和宽度 */
}

.chart-top {
  display: flex;
  /* align-items: center; */
  margin-top: 87px;
}

.chart-title {
  margin-bottom: 25px;
}

.chart-item {
  display: flex;
}

.chart-item .f16 {
  line-height: 36px;
}

.chart-circle {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #175cc2;
  margin-right: 16px;
  margin-top: 14px;
  flex-shrink: 0;
  /* 防止被挤压 */
  -ms-flex-negative: 0;
  /* IE */
  -webkit-flex-shrink: 0;
  /* Safari 旧版 */
}

.quality-box-b {
  background-color: #f8f8f8;
}

.quality-box-c {
  background-color: #fff;
}

.chart-img {
  width: 100%;
}

.chart-img-box {
  width: 40%;
  margin-left: 48px;
  margin-right: 95px;
}

.chart-bottom {
  margin-top: 71px;
}

@media screen and (max-width: 1280px) {
  .f40 {
    font-size: 36px;
  }

  .quality-num {
    font-size: 80px;
  }

  .quality-bg {
    padding: 30px 26px;
  }

  .quality-bg h2 {
    margin-bottom: 16px;
  }

  .f24 {
    font-size: 18px;
  }

  .quality-bg span {
    font-size: 14px;
    line-height: 22px;
  }

  .f16 {
    font-size: 14px;
  }
}

@media screen and (max-width: 1024px) {
  .f40 {
    font-size: 30px;
  }

}

@media screen and (max-width: 950px) {
  .f40 {
    font-size: 28px;
  }

  .quality-num {
    font-size: 50px;
  }

  .quality-bg {
    padding: 16px 14px;
  }

  .quality-bg h2 {
    margin-bottom: 8px;
  }
}

@media screen and (max-width: 876px) {
  .quality-num {
    font-size: 40px;
  }

  .quality-bg {
    padding: 12px 10px;
  }

  .quality-bg h2 {
    margin-bottom: 5px;
  }

  /* .quality-bg-box{
    width: 100%;
  }
  .quality-flex{
    flex-direction: column;
  } */
}

@media screen and (max-width: 850px) {
  .quality-bg span {
    line-height: 30px;
  }

  .f24 {
    font-size: 24px;
  }

  .quality-num {
    font-size: 114px;
  }

  .quality-bg-box {
    width: 60%;
    margin: 0 auto;
    margin-bottom: 36px;
  }

  .quality-bg {
    padding: 57px 44px;
  }

  .quality-flex {
    flex-direction: column;
  }

  .pc_div {
    display: none;
  }

  .phone_div {
    display: block;
    /* padding: 1.53rem 0.58rem; */
  }
  .chart-img-f{
    width: 100%;
    display: flex;
    justify-content: center;
    margin: 28px 0;
  }
  .chart-title{
    margin-top: 42px;
  }
.chart-img{
  width: 60%;

}
.chart-w{
  padding-left: 66px;
}
  .f24 {
    font-size: 24px
  }


}

@media screen and (max-width: 767px) {
  .quality-box {
    padding-top: 1.35rem;
    padding-bottom: 1.35rem;
  }

  .f40 {
    font-size: 1.2rem;
  }

  .f16 {
    font-size: 0.65rem;
    letter-spacing: 0.06rem;
  }
  .chart-item .f16{
    line-height: 1.2rem;
  }
  .quality-top-a {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 1.58rem;
  }

  .quality-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .span-box {
    width: 100%;
    margin-top: 0.6rem;
    line-height: 1rem;
  }

  .quality-flex {
    flex-direction: column;
    margin-top: 0.87rem;
  }

  .quality-bg-box {
    width: 100%;
  }

  .quality-bg {
    padding: 0.6rem 1.14rem;
    padding-top: 1.8rem;
    border-radius: 0.42rem;
    background-size: 100% auto;
  }

  .quality-num {
    position: absolute;
    top: -10px;
    left: 30px;
    font-weight: bold;
    font-size: 3rem;
    color: transparent;
    /* 文字颜色设置为透明 */
    -webkit-text-stroke: 1px #4d4c4c26;
    /* 文字描边，可以根据需要调整颜色和宽度 */
    background-image: url("your-image-url.jpg");
    /* 背景图片 */
    background-clip: text;
    /* 背景仅应用于文字区域 */
    -webkit-background-clip: text;
    /* 兼容WebKit浏览器 */
    display: inline-block;
  }

  .quality-bg h2 {
    margin-bottom: 0.6rem;
  }

  .quality-bg span {
    line-height: 1rem;
  }
  .chart-img-f{
    width: 100%;
    display: flex;
    justify-content: center;
    margin:0;
  }
.chart-img{
  width: 100%;
}
  .quality-bg-box {
    margin-bottom: 0.75rem;
  }

  .pc_div {
    display: none;
  }

  .phone_div {
    display: block;
    padding: 1.53rem 0.58rem;
  }

  .f24 {
    font-size: 0.75rem
  }
  .chart-w{
    padding-left: 0;
  }
  .chart-title {
    margin-bottom: 0.77rem;
    margin-top: 2.07rem;
  }
}