.baichen-service {
  padding: 40px 0 0;
  background: #fff;
  margin-top: -4px;
}

.baichen-service .service-title {
  text-align: center;
  margin-bottom: 30px;
}

.baichen-service .service-title h2 {
  color: #000;
}

.baichen-service .service-slider {
  position: relative;
  /* padding: 0 50px; */
}
.baichen-service .service-box{
  width: 100%;
  text-align: center;
}
.baichen-service .service-item {
  position: relative;
  overflow: hidden;
  /* border-radius: 8px; */
  /* box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08); */
  transition: all 0.3s ease;
  cursor: pointer;
}

.baichen-service .service-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 475 / 800;
}

.baichen-service .service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.3s ease;
}

.baichen-service .service-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: auto;
  padding: 20px 35px 30px 35px;
  display: flex;
  justify-content: flex-end;
  flex-direction: column;
  transition: all 0.4s ease;
  pointer-events: none;
}

/* Hover状态：扩展到全高度并居中内容 */


.baichen-service .service-overlay h3 {
  color: #fff;
  z-index: 100;
  position: relative;
  margin: 0 0 5px 0;
  font-size:clamp(16px, 1.6vw, 30px);
  font-weight: 600;
  transform: translateY(0);
  transition: all 0.4s ease;
  pointer-events: auto;
  line-height: 1.2;
}

.baichen-service .service-more{width:38px;height:38px;background:#135EA9;right:10px;bottom:10px;position: absolute;border-radius:50%;justify-content:center;align-items:center;transform:rotate(90deg);color:#fff;display:none;z-index:110;pointer-events:auto;}

/* 默认状态：底部渐变蒙层确保文字可读性 */
.baichen-service .service-overlay::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(to top, rgba(0,0,0,0.7), rgba(0,0,0,0));
  z-index: 1;
  transition: all 0.4s ease;
}

/* 移动蒙层：从底部向上滑动的完整蒙层 */
.baichen-service .service-overlay-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  transform: translateY(100%);
  transition: transform 0.3s ease;
  z-index: 2;
}



.baichen-service .service-content {
  color: #fff;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.4s ease 0.2s;
  z-index: 100;
  position: relative;
  pointer-events: none;
  text-align: left;
  display: none;
}


@media screen and (min-width:768px){

/* Hover状态：标题移动到上方 */
.baichen-service .service-item:hover .service-overlay h3 {
  transform: translateY(0);
  margin-bottom: 20px;
  padding-bottom: 25px;
}

.baichen-service .service-item:hover .service-overlay h3:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background: var(--color-primary);
}
.baichen-service .service-item:hover .service-overlay {
  height: 100%;
  top: 0;
  bottom: 0;
  /* justify-content: center;
  align-items: flex-start; */
  padding: 40px 35px;
}

.baichen-service .service-item:hover .service-content {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  display: block;
}
/* Hover状态：蒙层从下往上滑入完全覆盖 */
.baichen-service .service-item:hover .service-overlay-mask {
  transform: translateY(0);
}

/* Hover状态：隐藏默认渐变蒙层 */
.baichen-service .service-item:hover .service-overlay::before {
  opacity: 0;
}




}

.baichen-service .service-content p {
  font-size: 20px;
  line-height: 48px;
  /* margin: 0 0 15px 0; */
  /* opacity: 0.9; */
}

.baichen-service .service-btn {
  position: relative;
  display: inline-block;
  padding: 0px 24px;
  line-height: 40px;
  background: rgba(0,0,0,0);
  color: #fff;
  border: 1px solid #fff;
  border-radius: var(--button-radius);
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 18px;
  margin-top: 32px;
  overflow: hidden;
}
.baichen-service .service-btn:hover::before{
  content:attr(data-text);
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  color: #fff;
  background: var(--color-primary);
  border-radius: 25px;
  animation: animation_btn .3s ease-in-out;
}
.baichen-service .service-btn.leaving::before{
  content:attr(data-text);
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  color: #fff;
  background: var(--color-primary);
  border-radius: 25px;
  animation: animation_btn_leaving .3s ease-in-out;
}
@keyframes animation_btn_leaving{
  0% {
    width: 100%;
    height: 100%;
    border-radius: 25px;
    transform: translate(0%, 0%);
  }
  70% {
    width: 100%;
    height: 100%;
    border-radius: 50% 50% 0 0;
  }
  100% {
    width: 100%;
    height: 100%;
    border-radius: 50% 50% 0 0;
    transform: translate(0%, 100%);
  }
}
@keyframes animation_btn{
  0% {
    width: 100%;
    height: 100%;
    border-radius: 50% 50% 0 0;
    transform: translate(0%, 100%);
  }
  30% {
    width: 100%;
    height: 100%;
    border-radius: 50% 50% 0 0;
  }
  100% {
    width: 100%;
    height: 100%;
    border-radius: 25px;
    transform: translate(0%, 0%);
  }
}
.baichen-service .service-btn:hover {
  color: rgba(0,0,0,0);
  border-color: var(--color-primary);
  transition: all .3s;
}

.baichen-service .service-info {
  padding: 20px;
  text-align: center;
  background: #fff;
}

.baichen-service .service-info h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--title-text-color);
  margin: 0;
}



/* Swiper Navigation */
.baichen-service .swiper-button-prev,
.baichen-service .swiper-button-next {
  /*position: relative;*/
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.53);
  border: 1px solid #fff;
  opacity: 1;
  border-radius: 50%;
  color: #fff;
  overflow: hidden;
}
.baichen-service .swiper-button-prev{
  left:75px;
}
.baichen-service .swiper-button-next{
  right: 75px;
}
.swiper-button-prev:after, .swiper-button-next:after{
  display: none;
}
.baichen-service .swiper-button-prev::before{
  content: '\e64f';
}
.baichen-service .swiper-button-next::before{
  content: '\e650';
}
.baichen-service .swiper-button-next::before,
.baichen-service .swiper-button-prev::before{
  font-family: "qico" !important;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  background: var(--color-primary);
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius:50% ;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: top .3s ease-in-out;
  z-index: 2;
  pointer-events: none;
}
.baichen-service .swiper-button-next:hover::before,
.baichen-service .swiper-button-prev:hover::before{
  top: 0;
}

.baichen-service .swiper-button-next:hover,
.baichen-service .swiper-button-prev:hover {
  border-color: var(--color-primary);
  color: rgba(0,0,0,0);
  transition: all .3s;
}

/*.baichen-service .swiper-button-prev,*/
/*.baichen-service .swiper-button-next {*/
/*  display: none;*/
/*}*/

.baichen-service .swiper-button-prev i,
.baichen-service .swiper-button-next i,
.baichen-service .swiper-button-next::before,
.baichen-service .swiper-button-prev::before {
  font-size: 20px;
}

.baichen-service .swiper-pagination {
  position:static;
  margin-top:30px;font-size:0;display:none;
}

.baichen-service .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background: #ddd;
  opacity: 1;
}

.baichen-service .swiper-pagination-bullet-active {
  background: var(--color-primary);
}


@media (max-width: 1500px) {
  .baichen-service .swiper-button-prev{left:50px;}
  .baichen-service .swiper-button-next{right:50px;}
}

@media (max-width: 1240px) {
  .baichen-service .swiper-button-prev,.baichen-service .swiper-button-next{
    width: 50px;
    height: 50px;
  }
  .baichen-service .swiper-button-prev i,
  .baichen-service .swiper-button-next i,
  .baichen-service .swiper-button-next::before,
.baichen-service .swiper-button-prev::before{
    font-size: 24px;
  }

  .baichen-service .service-content p {
    font-size: 18px;
  }
  .baichen-service .swiper-button-prev{
  left:25px;
}
.baichen-service .swiper-button-next{
  right: 25px;
}
}

/* Responsive */
@media (max-width: 991px) {
  .baichen-service {
    padding: 60px 0;
  }

  .baichen-service .swiper-button-prev, .baichen-service .swiper-button-next {
    display: none;
  }
}

@media (max-width: 767px) {

.baichen-service{padding:30px 0;}
.baichen-service .service-slider {padding: 0 20px;}
  
.baichen-service .service-content h3{font-size:20px;}
  
.baichen-service .service-content p{font-size: 14px;}

  .baichen-service .service-overlay {
    padding: 10px 10px 15px 10px;
  }


  .baichen-service .service-btn {
    padding: 4px 12px;
  }
}


@media (max-width: 576px) {
.baichen-service .service-image{aspect-ratio:1.18 / 1;border-radius:15px;}

.baichen-service .service-overlay-mask{top:0;left:auto;width:38px;height:38px;background:#135EA9;transform:none;right:10px;border-radius:50%;justify-content:center;align-items:center;display:none;}
.baichen-service .service-overlay-mask::before{content:"\e663";font-family:"qico" !important;color:#fff;font-size:16px;transform:rotate(90deg);}

.baichen-service .swiper-pagination {display:block;}

.baichen-service .service-more{display:flex;}

}


@media (max-width: 480px) {
.baichen-service .service-slider{padding:0 15px;}
.baichen-service .service-title{margin-bottom:20px;}
.baichen-service .swiper-pagination{margin-top:20px;}

.baichen-service .service-overlay h3{margin:0 35px 5px 0;}

  .baichen-service .service-slider {
    padding: 0 20px;
  }
}