.swiper-container {
  width: 100%;
  /* height: 500px; */
}
.swiper-slide {
  text-align: center;
  font-size: 18px;
  background: #fff;

  /* Center slide text vertically */
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}
.swiper-pagination-bullet-active {
  background: #F0A749;
}
.swiper-wrapper a {width: 100%; height: 100%;}
.banner {position: relative; z-index: 1;}
.banner .banner-center {
  position: absolute;
  z-index: 9999;
  left: 50%;
  transform: translate(-50%, -50%);
  bottom: -10px;
  width: 900px;
  height: 56px;
  line-height: 56px;
  background: #0E1317;
  padding: 0 56px;
}
.banner .banner-center p {
  display: inline-block;
  color: #fff;
}
.banner .banner-center p:last-child {
  color: #F0A749;
  float: right;
}
.banner .banner-center p i {
  margin-right: 18px;
  width: 16px;
  height: 16px;
  vertical-align: text-top;
}

/* 简介 */
.become {
  width: 1480px;
  margin: 128px auto 74px;
  text-align: left;
}
.become .become-tit h2{
  font-size: 30px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.become .become-tit p {
  position: relative;
  display: inline-block; /* 控制宽度仅包裹文字 */
  font-size: 20px;
  margin: 52px auto;
}
.become .become-tit p::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -12px;
  width: 70%; /* 只占文字宽度的一半 */
  height: 4px; /* 边框高度 */
  background-color: #F0A749; /* 边框颜色 */
}
.become .become-list{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 68px;
}
.become .become-list .item .icon-item1 {
  width: 80px;
  height: 80px;
  background: url(../img/1.png) no-repeat center 100%;
  background-size: 100% 100%;
  position: relative;
  top: 8px;
}
.become .become-list .item .icon-item2 {
  width: 80px;
  height: 80px;
  background: url(../img/2.png) no-repeat center 100%;
  background-size: 100% 100%;
  position: relative;
  top: 8px;
}
.become .become-list .item .icon-item3 {
  width: 80px;
  height: 80px;
  background: url(../img/3.png) no-repeat center 100%;
  background-size: 100% 100%;
  position: relative;
  top: 8px;
}
.become .become-list .item .icon-item4 {
  width: 80px;
  height: 80px;
  background: url(../img/4.png) no-repeat center 100%;
  background-size: 100% 100%;
  position: relative;
  top: 8px;
}
.become .become-list .item .icon-item5 {
  width: 80px;
  height: 80px;
  background: url(../img/5.png) no-repeat center 100%;
  background-size: 100% 100%;
  position: relative;
  top: 8px;
}
.become .become-list .item p {
  position: relative;
  display: inline-block;
  font-size: 24px;
  line-height: 34px;
  text-align: left;
  margin-left: 12px;
  top: -5px;
}
.become .become-list .item p::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 34px;
  transform: translate(-50%, -50%); /* 居中定位 */
  width: 18px;
  height: 57px;
  background-color: rgba(240,167,73,0.2); /* 柱子的颜色 */
  z-index: 0; /* 放在文字下方 */
  border-radius: 2px; /* 可选的圆角 */
}

.become .become-info{
  display: flex;
  justify-content: space-between;
}
.become .become-info .become-info_tit {
  width: 700px;
  font-size: 14px;
  line-height: 25px;
}
.become .become-info .become-info_tit:first-child {
  color: rgba(0,0,0,0.85);
  text-align: right;
}
.become .become-info .become-info_tit:last-child {
  color: #8C8C8C;
  text-align: left;
}
.become .become-info .become-info_tit .tit-tag {
  color: rgba(240,167,73,0.15);
  font-size: 40px;
  line-height: 56px;
  text-align: left;
  text-transform: uppercase;
  margin-top: 18px;
}
.become .become-info .become-info_tit .tit-tag::after{    
  content: "";
  position: absolute;
  left: 0;
  bottom: 5px;
  width: 135px;
  height: 4px;
  background-color: #F0A749;
}
.become .become-info .become-info_border {
  width: 1px;
  height: 100px;
  background-color: rgba(0,0,0,0.15);
}

.become .become-more a{
  width: 130px;height: 40px;line-height: 40px;border: 1px solid rgba(0,0,0,0.15);
  text-align: center;
  font-size: 20px;
  margin: 40px auto;
}
.become-more a::before,
.become-more a::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 680px;        /* 横线长度 */
  height: 1px;        /* 横线高度 */
  background: rgba(0,0,0,0.15);   /* 横线颜色 */
}
.become-more a::before {
  left: -50px; /* 可根据padding和width微调位置 */
  transform: translateY(-50%);
}
.become-more a::after {
  right: -50px;
  transform: translateY(-50%);
}


/* 品质 */
.quality {
  padding: 62px 0;
  background: url(../img/bg_index1.jpg) no-repeat center;
  background-size: contain;
}
.quality .container1600 {
  overflow: visible !important;
}
.quality .quality-case  {
  display: flex;
  justify-content: space-between;
  margin-bottom: 128px;
  overflow: visible;
}
.quality .quality-case .item {
  width: 395px;
  height: 450px;
  background: #F5F5F5;
  position: relative;
  z-index: 1;
}
.quality .quality-case .item:nth-of-type(2n) {
  background-color: #E9E9E9;
}
.quality .quality-case .item img {
  width: 395px;
  height: 296px;
  object-fit: cover;
}
.quality .quality-case .item p {
  font-size: 20px;
  margin-left: 32px;
  margin-top: 24px;
  color: rgba(0,0,0,0.85);
  font-weight: 500;
}
.quality .quality-case .item span {
  font-size: 16px;
  position: absolute;
  right: 28px;
  bottom: 20px;
}
/* 增加过渡效果 */
.quality .quality-case .item {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* 悬停效果 */
.quality .quality-case .item:hover {
  transform: translateY(-10px);
  box-shadow: 0px 12px 24px rgba(0,0,0,0.15);
}


.index_tit {
  margin: 20px auto;
  position: relative;
  width: max-content; /* 保证内容自适应宽度 */
}
.index_tit p {
  position: relative;
  z-index: 2;
  font-size: 30px;
  font-weight: 500;
}
.index_tit span {
  width: 356px;
  position: absolute;
  z-index: 1;
  top: -12px;
  font-size: 24px;
  left: -82px;
  color: rgba(0,0,0,0.15);
  text-transform: uppercase;
}
.quality-info .quality-info_list {
  display: flex;
  justify-content: space-between;
  align-items: stretch; /* 保证所有 item 等高 */
}
.quality-info .quality-info_list .item {
  width: 320px;
  margin: 74px auto 62px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.quality-info .quality-info_list .item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -0; /* 等于 margin 的一半 */
  top: 0;
  width: 1px;
  height: 100%; /* 和 item 一样高 */
  border-right: 1px dashed #ccc; /* 虚线 */
}
.quality-info .quality-info_list .item p{
  font-size: 24px;
  text-align: center;
  margin-top: 48px;
}
.quality-info .quality-info_list .item .icon-item{
  width: 100px;
  height: 100px;
  background: url(../img/i-fuwu.png) no-repeat;
  background-size: 100px;
  display: block;       /* 如果你用的是 <i> 标签，确保它是块级元素 */
  margin: 0 auto;
}
.quality-info .quality-info_list .item:nth-child(2) .icon-item {
  background: url(../img/i-tuanduipng.png) no-repeat;
  background-size: 100px;
}

.quality-info .quality-info_list .item:nth-child(3) .icon-item {
  background: url(../img/i-dingwei.png) no-repeat;
  background-size: 100px;
}

.quality-info .quality-info_list .item:nth-child(4) .icon-item {
  background: url(../img/i-pinzhi.png) no-repeat;
  background-size: 100px;
}

.quality-info .quality-info_list .item:nth-child(5) .icon-item {
  background: url(../img/i-rongyu.png) no-repeat;
  background-size: 100px;
}

/* 案例展示 */
.cases {
  width: 100%;
  margin: 68px auto 136px;
}
.cases-nav {width: 400px; display: flex; justify-content: space-between; font-size: 20px; margin: 42px auto 48px;}
.cases-nav a.active {
  padding-bottom: 12px;
  color: #F0A749;
  border-bottom: 3px solid #F0A749;
}
.cases-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 更推荐使用 fr 单位代替百分比 */
  height: 732px;
  gap: 2px; /* 同时控制水平和垂直间距 */
}
.case-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.case-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.case-item div {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: #fff;
  background: rgba(0, 0, 0, 0.6); /* 黑色半透明遮罩 */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 56px;
  text-align: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.case-item div p{
  font-weight: 500;
  font-size: 28px;
  color: #F0A749;
  margin-bottom: 8px;
}
.case-item div span {
  font-size: 20px;
  color: #F0A749;
  line-height: 28px;
}
.case-item div button {
  margin-top: 26px;
  width: 120px;
  height: 38px;
  line-height: 38px;
  text-align: center;
  background: #F0A749;
  border-radius: 2px 2px 2px 2px;
  color: #fff;
}
.case-item:hover .case-item_hover {
  opacity: 1;
}

/* 关于我们 */
.about {
  width: 100%;
  background: rgba(3,3,3,0.05);
  padding: 100px 0;
}
.about .about-txt h3 {
  font-size: 30px;
  font-weight: 500;
  margin-bottom: 10px;
}
.about .about-txt span {
  font-size: 14px;
}
.about .about-txt p {
  width: 500px;
  font-size: 16px;
  line-height: 32px;
  color: rgba(0,0,0,0.85);
  margin-top: 42px;
  margin-bottom: 120px;
}
.about-txt a {
  width: 130px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  border: 1px solid rgba(0,0,0,0.15);
  display: inline-block;
  letter-spacing: 1px;
}
.about-img  img {
  width: 996px;
  height: 610px;
}
.about-img.swiper-container {
  width: 996px;
  height: 660px;
}
.about-img .swiper-wrapper {
  width: 996px;
  height: 610px;
}

/* 展台搭建 */
.stand {
  padding-top: 137px;
}
.stand-list {
  margin: 80px auto 136px; 
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 100px; /* 每行高度 */
  gap: 2px;
}
/* 不设置 height，用 grid-row 控制尺寸 */
.stand-list .case-item:nth-of-type(1) {
  grid-row: span 5; /* 100 x 5 = 500px */
}
.stand-list .case-item:nth-of-type(2) {
  grid-row: span 3; /* 300px */
}
.stand-list .case-item:nth-of-type(3) {
  grid-row: span 8; /* 800px */
}
.stand-list .case-item:nth-of-type(4) {
  grid-row: span 5; /* 500px */
}
.stand-list .case-item:nth-of-type(5) {
  grid-row: span 3; /* 300px */
}

/* 客户 */
.customers .index_tit span{
  left: -35px;
}
.customer-list.swiper-container {
  width: 1600px;
  margin: 60px auto 136px;
}
.customer-list .swiper-slide {
  width: 1600px !important;
  padding: 0 60px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
.customer-list .swiper-button-next{
  right: 0;
  margin-top: -15px;
}
.customer-list .swiper-button-prev{
  left: 0;
  margin-top: -15px;
}
.customer-list .swiper-slide a {
  width: 160px;
  height: 98px;
  margin: 8px;
  display: block;
  flex-shrink: 0;
  border: 1px solid #f5f5f5;
}
.customer-list .swiper-slide a img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}


/* 新闻 */
.news .index_tit span{
  left: -35px;
}
.news .news-info {
  width: 100%;
  height: 860px;
  margin: 80px auto 136px;
}
.news .news-info .news-info_left {
  width: calc(100% - 1550px);
  padding: 100px 0;
  float: left;
  text-align: center;
}
.news .news-info .news-info_left a {
  font-weight: 500;
  font-size: 20px;
  margin-bottom: 128px;
}
.news .news-info .news-info_left a.active, .news .news-info .news-info_left a:hover {
  color: #F0A749;
}
.news .news-info .news-info_right {
  width: 1550px;
  height: 100%;
  float: left;
  background: #F5F5F5;
  padding: 100px 0;
  position: relative;
}
.news .news-info .news-info_right>a {
  position: absolute;
  width: 130px;
  height: 40px;
  line-height: 40px;
  font-size: 16px;
  text-align: center;
  border: 1px solid rgba(0,0,0,0.15);
  top: 45px;
  right: 166px;
}
.news .news-info .news-info_right .info-tit {
  width: 1216px;
  height: 157px;
  background: #FFFFFF;
  margin: 6px auto;
  padding: 24px 64px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  z-index: 0;
}
.news .news-info .news-info_right .info-tit:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1); /* 添加阴影 */
  z-index: 10; /* 放大时确保在上层 */
}
.news .news-info .news-info_right .info-tit span {
  font-size: 30px;
  color: rgba(0,0,0,0.3);
  line-height: 42px;
}
.news .news-info .news-info_right .info-tit p {
  margin-top: 12px;
  width: 100%;
  font-size: 30px;
  color: rgba(0,0,0,0.85);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}