/* banner */
.custom-banner {
  position: relative;
}

.custom-banner .banner-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 100%;
}

.custom-banner .banner-desc h1 {
  font-size: 3rem;
  color: #fff;
  line-height: 3.44rem;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5); /* 添加阴影效果 */
}

.custom-banner .banner-desc h1 span:first-child {
  color: #0098E6;
}

.custom-banner .banner-desc p {
  font-size: 1rem;
  color: #FFFFFF;
  line-height: 1.31rem;
  letter-spacing: 1px;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5); /* 添加阴影效果 */
}

/* section1 */
.section1 .accordion {
  display: flex;
  height: 21rem;
  gap: 0.5rem;
}

.section1 .accordion .box {
  position: relative;
  flex: 1;
  overflow: hidden;
  transition: all 0.5s ease-in-out;
}

.section1 .accordion .box .bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* 遮罩效果 */
  background-color: rgba(0, 0, 0, 0);
  transition: all 0.5s ease-in-out;
}

.section1 .accordion .box:hover {
  flex-basis: 15%;
}

.section1 .accordion .box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.5s ease-in-out;
}

.section1 .accordion .box:hover img {
  width: 100%;
}

.section1 .accordion .box:hover .bg {
  background-color: rgba(0, 0, 0, 0.3);
}

.section1 .accordion .box .desc {
  position: absolute;
  bottom: 10%;
  left: 10%;
  width: 80%;
  text-align: center;
  color: #fff;
  transition: all 0.5s ease-in-out;
}

.section1 .accordion .box:hover .desc {
  bottom: 40%;
}

.section1 .accordion .box .desc div {
  transition: all 0.5s ease-in-out;
}

.section1 .accordion .box .desc div:nth-child(1) {
  font-size: 0.6rem;
  line-height: 0.8rem;
  margin-bottom: 0.5rem;
  display: inline-block;
  border-radius: 50%;
  padding: 0.5rem;
}

.section1 .accordion .box .desc div:nth-child(1) .icon-custom {
  width: 2.5rem;
  height: 2.5rem;
  display: inline-block;
}

.section1 .accordion .box .desc div:nth-child(1) .icon-custom.icon1 {
  background: url('../images/cooperation/section1-icon1.png') no-repeat center / 100% 100%;
}

.section1 .accordion .box .desc div:nth-child(1) .icon-custom.icon2 {
  background: url('../images/cooperation/section1-icon2.png') no-repeat center / 100% 100%;
}

.section1 .accordion .box .desc div:nth-child(1) .icon-custom.icon3 {
  background: url('../images/cooperation/section1-icon3.png') no-repeat center / 100% 100%;
}

.section1 .accordion .box .desc div:nth-child(1) .icon-custom.icon4 {
  background: url('../images/cooperation/section1-icon4.png') no-repeat center / 100% 100%;
}

.section1 .accordion .box .desc div:nth-child(1) .icon-custom.icon5 {
  background: url('../images/cooperation/section1-icon5.png') no-repeat center / 100% 100%;
}

.section1 .accordion .box .desc div:nth-child(2) {
  font-size: 1rem;
  line-height: 1.5rem;
}

.section1 .accordion .box .desc div:nth-child(3) {
  width: 100%;
  font-size: 1rem;
  color: #FFFFFF;
  line-height: 1.5rem;
  letter-spacing: 2px;
  text-align: center;
  margin-top: 1rem;
  opacity: 0;
}

.section1 .accordion .box:hover .desc div:nth-child(1) {
  font-size: 0.8rem;
  border: 1px solid #FFFFFF;
}

.section1 .accordion .box:hover .desc div:nth-child(2) {
  font-size: 1.5rem;
}

.section1 .accordion .box:hover .desc div:nth-child(3) {
  opacity: 1;
}

/* section2 */
.section2 {
  background: url("../images/cooperation/section2-bg7.png") no-repeat center / cover;
}

.section2 .item {
  position: relative;
  overflow: hidden;
}

.section2 .item img{
  transition: all 0.5s ease-in-out;
}

.section2 .item .desc {
  position: absolute;
  bottom: -20px;
  width: 100%;
  height: 20%;
  background-image: linear-gradient(to bottom, rgba(0, 143, 245, 0) 0%, rgba(0, 150, 235, 0.80) 100%);
  color: #FFFFFF;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all 0.5s ease-in-out;
  transform: scale(0.8);
  opacity: 0;
}

.section2 .item:hover img{
  transform: scale(1.1);
}

.section2 .item:hover .desc {
  opacity: 1;
  bottom: 0;
  transform: scale(1);
}

/* section3 */
.section3 .btn {
  background: #0098E6;
  border-color: #0098E6;
}

.section3 .btn:active {
  background: #0176b1 !important;
  border-color: #0176b1 !important;
}

/* section4 */
.section4 {
  background: url("../images/cooperation/section2-bg7.png") no-repeat center / cover;
}

.section4 .erweima {
  display: inline-block;
  padding: 0.25rem;
  background-color: #fff;
}

.section4 .erweima img {
  width: 6rem;
  height: 6rem;
}