.box {
  background-image: url(../images/tech/bg3.jpg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.qu-box {
  display: flex;
  align-items: stretch;
}
.qu-l h3 {
  font-weight: bold;
  font-size: 42px;
  color: #073682;
  margin-bottom: 12px;
}
.qu-l .mt {
  margin-top: 36px;
}
.qu-l p {
  font-size: 18px;
  color: #073682;
  line-height: 42px;
}
.mb {
  margin-bottom: 56px;
}
.qu-r {
  width: 36%;
  flex-shrink: 0;
  -webkit-flex-shrink: 0;
  margin-left: 79px;
  display: flex;
}
.qu-r img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 质量体系建设 */
.quality-system {
  padding: 60px 0;
  background-color: #f5f5f5;
}
.quality-system .safe_width {
  max-width: 1650px;
}
.quality-system h3 {
  font-weight: bold;
  font-size: 42px;
  color: #073682;
  margin-bottom: 60px;
}

/* Swiper容器 */
.quality-swiper-container {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.quality-swiper {
  width: 100%;
}

/* Swiper slide内容 */
.slide-content {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  width: 100%;
  padding: 0 60px;
  gap: 20px;
}

/* 三个相等的块 */
.slide-item {
  width: 33.33%;
  background-color: #fff;
  padding: 40px;
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;

  display: flex;
  flex-direction: column;
  justify-content: center;
}

.slide-item h4 {
  font-size: 27px;
  color: #073682;
  margin-bottom: 20px;
  font-weight: normal;
}

.slide-item p {
  font-size: 18px;
  color: #073682;
  line-height: 35px;
  margin: 0;
}

/* hover效果 */
.slide-item:hover {
  width: 42%;
  background-image: url(../images/tech/img5.jpg);
  background-size: cover;
  background-position: center;
  background-color: transparent;
  border-color: transparent;
}

.slide-item:hover h4,
.slide-item:hover p {
  color: #ffffff;
}

/* Swiper箭头按钮 */
.quality-swiper-container .swiper-button-prev,
.quality-swiper-container .swiper-button-next {
  width: 46px;
  height: 46px;
  background: #c9cbcd;
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  transition: all 0.3s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* 按钮hover特效 */
.quality-swiper-container .swiper-button-prev:hover,
.quality-swiper-container .swiper-button-next:hover {
  background: #073682;
  transform: translateY(-50%) scale(1.03);
}

.quality-swiper-container .swiper-button-prev {
  left: 2px;
}

.quality-swiper-container .swiper-button-next {
  right: 2px;
}

/* 按钮图片样式 */
.quality-swiper-container .swiper-button-prev img,
.quality-swiper-container .swiper-button-next img {
  width: 25px;
  height: 25px;
}

@media screen and (max-width: 768px) {
  .box {
    background-image: url(../images/tech/bg3-s.jpg);
  }
  .qu-box {
    flex-direction: column;
  }
  .qu-l h3 {
    font-size: 0.5rem;
    margin-bottom: 0.31rem;
  }
  .qu-l .mt {
    margin-top: 0.5rem;
  }
  .qu-l p {
    font-size: 0.28rem;
    line-height: 0.5rem;
  }
  .mb {
    margin-bottom: 0.5rem;
  }
  .qu-r {
    width: 100%;
   margin-top: 0.5rem;
    margin-left: unset;
  }

  /* 质量体系建设 */
  .quality-system {
    padding:0.58rem 0;
  }
  .quality-system .safe_width {
    max-width: unset;
  }
  .quality-system h3 {
   font-size: 0.5rem;
    margin-bottom:0.53rem;
  }


  
  /* Swiper容器 */
  .quality-swiper-container {
    overflow: hidden;
  }

  /* Swiper slide内容 */
  .slide-content {
    flex-direction: column;
    padding: 0;
    gap: 0;
  }

  /* 三个相等的块 */
  .slide-item {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 0.2rem;
  
  }

  .slide-item h4 {
    font-size: 0.36rem;
    margin-bottom: 0.2rem;
  }

  .slide-item p {
    font-size: 0.28rem;
    line-height: 0.5rem;
  }

  /* 移除移动端hover效果 */
  .slide-item:hover {
    width: 100%;
    background-image: none;
    background-color: #f5f5f5;
    border-color: #e0e0e0;
  }

  .slide-item:hover h4,
  .slide-item:hover p {
    color: #073682;
  }

  /* Swiper箭头按钮 - 移动端隐藏 */
  .quality-swiper-container .swiper-button-prev,
  .quality-swiper-container .swiper-button-next {
    display: none;
  }
}