/* 品质保证页面样式 */
section,header,footer,.page-banner{
  max-width: 1920px;
  margin: 0 auto;
}
/* 页面Banner */
.page-banner {
  height: 400px;
  padding: 80px 0;
  position: relative;
  display: flex;
  align-items: center;
  flex-direction: column;
  background-image: url("../images/information/informationTop.png");
}
.page-banner h2{
  text-align: center;
  padding-top: 100px;
  font-size: 50px;
  color: #000;
  font-weight: 600;
}


.page-banner p{
  margin-top: 20px;
  color: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 26px;
  font-weight: 600;
}


h4 {
 width: 200px;
 height: 30px;
 line-height: 30px;
 margin: 15px 0;
 text-align: center;
}

h4 img {
  vertical-align: middle;
  width: 20px;
  height: 20px;
  display: inline-block; 
  margin: 0 6px ;
}
.iconList {
  display: flex;
  justify-content: space-around;
  width: 95%; 
  margin: 0 auto;
}
.iconList img {
  width: 100px;
  height: 100px; 
  margin-top: 120px;
  cursor: pointer;
}
.quality-section {
  padding: 0 100px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: border-box;
  height: 1000px;
  width: 100%;
}
.imgBox {
  position: relative;
  width: 400px;
  height: 600px;
  overflow: hidden;
  cursor: pointer;
}

/* 把所有 img 都绝对定位、全幅、GPU 加速 */
.imgBox img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  backface-visibility: hidden;
  will-change: opacity, transform;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
/* 默认图在上层 */
.imgBox img.defaultImg {
  z-index: 1;
  opacity: 1;
}
/* Hover 图在下层，初始隐藏 */
.imgBox img.hoverImg {
  z-index: 0;
  opacity: 0;
}

/* 整体缩放（同时作用于 defaultImg 和 hoverImg） */
.imgBox:hover img {
  transform: scale(1.05);
}
/* 只有控制品控项才切换图片 */
.imgBox.control:hover img.defaultImg {
  opacity: 0;
}
.imgBox.control:hover img.hoverImg {
  opacity: 1;
}

/* 标题淡出 */
.imgBox h3 {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  color: #fff;
  font-size: 40px;
  text-align: center;
  z-index: 2;
  transition: opacity 0.4s ease;
}
.imgBox:hover h3 {
  opacity: 0;
}

/* 灰层 + 文字 */
.imgBox p {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  margin: 0; padding: 20px;
  box-sizing: border-box;
  background-color: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
}
.imgBox:hover p {
  opacity: 1;
}
.imgBox p span {
  color: #fff;
  font-size: 18px;
  line-height: 1.5;
  text-align: center;
  transform: translateY(100%);
  transition: transform 0.4s ease 0.1s;
}
.imgBox:hover p span {
  transform: translateY(0);
}

.circle-right:hover {
  animation: rotateRight 2s infinite linear;
}
@keyframes rotateRight {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@keyframes waveAnimate {
  0% {
    background-position-x: 0;
  }
  100% {
    background-position-x: 1000px;
  }
}

@keyframes waveAnimate-reverse {
  0% {
    background-position-x: 1000px;
  }
  100% {
    background-position-x: 0;
  }
}