*{margin:0;padding:0;box-sizing:border-box;}
body{font-size: 16px; font-family:'Montserrat', Arial, Helvetica, sans-serif;}
a,a:hover{text-decoration:none;color:inherit;}

ul,ul li{
  list-style: none;
  margin:0;
  padding:0;
}
h1,h2,h3,h4,h5,h6,p{
  margin:0;
  padding:0;
}
img{max-width: 100%;}
/* .container{width:1600px;margin:0 auto;} */

/* 导航主容器 - 核心置顶样式 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background-color: rgba(33, 45, 69, .5); /* 默认半透明 */
  z-index: 9999;
  transition: all 0.3s ease; /* 平滑过渡 */
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  color: #fff;
}

/* 下滑后导航样式 - 完全不透明 */
.navbar.fixed {
  background-color: #ffffff;
}

/* 导航内容居中容器 */
.nav-container {
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding:0 60px;
}

.nav-adv{
  width: 45%;
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(4,1fr);
  font-size: 14px;
}
.nav-adv span{
  display: block;
}
.nav-adv .nav-adv-list .fa-check-square-o:before{color:#ffc03d}
#navbar.fixed {
  color: #333;
}
#navbar.fixed a {
  color: #333;
}
#navbar.fixed a:hover{color:#ffc03d}

/* Logo样式 */
.logo {
  font-size: 24px;
  font-weight: bold;
  color: #333;
}

/* PC端一级菜单 */
.nav-menu {
  display: flex;
  gap: 40px;
}

.nav-menu > li {
  position: relative;
  line-height: 80px;
}

.nav-menu > li > a {
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  padding: 0 10px;
  display: block;
}
.nav-menu > li > a:hover{
  color:#ffc03d;
}

/* PC端二级菜单 - 默认隐藏 */

.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: #fff;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
}


.nav-menu > li:last-child .submenu{
  left:-30%
}

.submenu li {
  line-height: 45px;
  padding: 0 15px;
}

.submenu li a {
  color: #333;
  font-size: 15px;
  display: block;
}

.submenu li:hover {
  background: #f5f5f5;
}

/* PC端鼠标悬停显示二级菜单 */
.nav-menu > li:hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 移动端菜单按钮 - 默认隐藏 */
.menu-btn {
  display: none;
  font-size: 24px;
  color: #333;
  background: none;
  border: none;
  cursor: pointer;
}

/* ==================== 移动端适配 ==================== */
@media(max-width:1600px) and (min-width:1280px){
  .nav-menu {
    gap: 20px;
}
}

@media (max-width: 1280px) {
  /* 隐藏PC端菜单，显示菜单按钮 */
  .nav-menu {
      position: fixed;
      top: 80px;
      left: 0;
      width: 100%;
      background: #fff;
      flex-direction: column;
      gap: 0;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
  }

  /* 菜单展开 */
  .nav-menu.active {
      max-height: 600px;
      top:55px
  }

  .nav-menu > li {
      line-height: 55px;
      border-bottom: 1px solid #f0f0f0;
  }

  .menu-btn {
      display: block;
  }

  /* 移动端二级菜单 - 默认隐藏 */
  .submenu {
      position: static;
      box-shadow: none;
      opacity: 1;
      visibility: visible;
      transform: none;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
  }

  /* 移动端点击展开二级菜单 */
  .submenu.active {
      max-height: 300px;
  }

  /* 移动端一级菜单取消跳转样式 */
  .nav-menu > li > a.mobile-no-link {
      pointer-events: none; /* 禁止点击跳转 */
  }
  .nav-adv{display: none;}
}

/* banner + 底部渐变图形 */
.banner{position:relative;overflow: hidden;}
.banner .swiper-slide .banner-btn{
  width:200px;
  height:60px;
  background: #ffc03d;
  line-height: 60px;
  text-align: center;
  margin-top:20px;
  opacity: 1;
  transition: all .5s;
}
.banner .swiper-slide:hover .banner-btn{
  opacity: 1;
}
/* .banner::after{
  content:'';
  position:absolute;
  left:0;right:0;bottom:0;
  height:120px;
  background:linear-gradient(to top, #f5f5f5 0%, transparent 100%);
  z-index:2;
} */
.banner .swiper,.banner .swiper-slide{height:100%; display: flex;}
.banner .swiper-slide img{width:100%;object-fit:cover;}
.banner-text{position:absolute;left:10%;top:18%;color:#fff;text-align:left;z-index:3;}
.banner-text h1{font-size:50px;line-height:1.4;width: 100%; text-transform: capitalize;text-shadow: 0 3px 5px rgba(0, 0, 0, .5);letter-spacing: -1px;}
.banner-text p{margin-top:15px;font-size:18px;}
.banner .swiper-pagination-bullet{background:#fff;opacity:.6;}
.banner .swiper-pagination-bullet-active{opacity:1;}
.top1{
  top:40%
}
/* stats */
.stats{padding:60px 0;}
.stats-list{display:flex;justify-content:space-between;text-align:center;}
.stats-list .stats-item{
  transition: all .5s;
}
.stats-list .stats-item:hover{
  transform: scale(1.1);
}
.stats-item h2{font-size:60px;font-weight:bold;transition: all .5s;}
.stats-item p{margin-top:10px;color:#666;font-size:16px;}
.stats-item:hover h2{
  color:#ffc03d;
}

/* products */
.products{padding:80px 0;background-color: #f4f4f4;}
.products-top{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:40px;}
.products-left h2{font-size:42px;line-height:60px;position:relative;padding-bottom:20px;text-transform: uppercase;}
.products-left h2::after{content:"";width:40px;height:3px;background:#212d45;position:absolute;left:0;bottom:0;}
.products-left p{color:#999;margin-top:20px;}
.tabs{display:flex;gap:30px;}
.tabs span{cursor:pointer;transition:.3s;font-size:20px;}
.tabs span.active,.tabs span:hover{color:#ffc03d;border-bottom:2px solid #ffc03d;padding-bottom:8px;}

.product-panels{position:relative;min-height:420px;}


/* grid */
.grid{
  display:grid;
  flex-wrap:wrap;
  grid-template-columns: repeat(3,1fr);
  gap:30px;
  transition:all .6s ease;
}
.card{
  width:100%;
  overflow: hidden;
  text-align:center;
}
.card a{display: block;}
.card img{
  width:100%;
  height: 443px;
  object-fit:cover;
  transition:transform .4s;
  border:1px solid #eee;
}
.card:hover img{
  transform:scale(1.05);
}
.card p{margin-top:15px;font-size:16px;color:#333;}
.product-more{text-align:center;margin-top:60px;}
.product-more a{padding:10px 30px;background:#ffc03d;color:#fff;display:inline-block;}

/* solutions 鼠标悬停切换背景图 */
/* 整体容器 */
.solution-section {
  width: 100%;
  height: 700px;
  background: url('../../images/case1.jpg') center center / cover no-repeat;
  position: relative;
  overflow: hidden;
  /* 背景切换过渡动画 */
  transition: background-image 0.8s ease-in-out;
}

/* 背景遮罩 */
.solution-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 10, 40, 0);
  z-index: 1;
}

/* 内容容器 */
.solution-content {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  max-width: 1920px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* 顶部标题区域 */
.solution-header {
  padding-top: 80px;
  color: #fff;
  padding-left: 8%;
    padding-right: 8%;
}
.solution-header h1 {
  font-size: 42px;
  line-height: 60px;
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 20px;
}
.solution-header h1::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 60px;
  height: 2px;
  background-color: #fff;
}
.solution-header p {
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.9;
  max-width: 600px;
}

/* 右侧轮播卡片 + 底部标签栏容器 */
.solution-carousel-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  width: 100%;
}

/* 轮播卡片容器（隐藏非当前卡片） */
.carousel-cards {
  width: 420px;
  position: relative;
  margin-bottom: 20px;
}
/* 右侧轮播卡片 */
.carousel-card {
  width: 100%;
  background-color: #fff;
  padding: 40px 30px;
  position: absolute;
  top: -400px;
  right: 40%;
  display: none;
}
/* 显示当前激活的卡片 */
.carousel-card.active {
  display: block;
}
.carousel-card .en-title {
  font-size: 18px;
  color: #ffc03d;
  letter-spacing: 1px;
  margin-bottom: 8px;
  font-weight: 500;
}
.carousel-card .cn-title {
  font-size: 24px;
  color: #333;
  margin-bottom: 20px;
  font-weight: bold;
}
.carousel-card .desc {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 25px;
}
.carousel-card .detail-link {
  font-size: 14px;
  color: #ffc03d;
  text-decoration: none;
  display: inline-block;
  position: relative;
  padding-right: 15px;
  transition: color 0.3s;
}
.carousel-card .detail-link::after {
  content: '>>';
  position: absolute;
  right: 0;
  top: 0;
  font-size: 12px;
}
.carousel-card .detail-link:hover {
  color: #ffc03d;
}

/* 轮播控制按钮 */
.carousel-controls {
  position: absolute;
  left: -50%;
  bottom: 60px;
  display: flex;
  z-index: 10;
}
.carousel-btn {
  width: 40px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  color: #ffc03d;
  font-size: 20px;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all 0.3s;
}
.carousel-btn.next {
  background-color: #ffc03d;
  color: #fff;
}
.carousel-btn:hover {
  opacity: 0.9;
}

/* 底部标签栏 */
.tab-bar {
  display: flex;
  align-items: center;
  height: 100px;
  line-height: 100px;
  background-color: rgba(0, 10, 40, 0.5);
  width: 100%;
}
.tab-item {
  flex: 1;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
}
.tab-item.active {
  background-color: #ffc03d;
}
.tab-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background-color: rgba(255, 255, 255, 0.2);
}
.tab-item:hover {
  background-color: rgba(255, 192, 61, 0.8);
}

/* ====================== 响应式适配 ====================== */
@media (max-width: 1200px) {
  .solution-header {
      padding-top: 60px;
  }
  .solution-header h1 {
      font-size: 36px;
  }
  .carousel-cards {
      width: 380px;
  }
  .carousel-card {
      padding: 35px 25px;
  }
  .tab-bar {
      max-width: 800px;
  }
  .tab-item {
      font-size: 14px;
  }
  .banner-text h1{font-size: 30px;}

}

@media (max-width: 992px) {
  .solution-section {
      height: auto;
      padding: 40px 0;
  }
  .solution-content {
      padding: 0 30px;
      height: auto;
  }
  .solution-carousel-wrap {
      align-items: center;
      margin-top: 40px;
      margin-bottom: 30px;
  }
  .carousel-cards {
      width: 100%;
      max-width: 500px;
  }
  .tab-bar {
      flex-wrap: wrap;
      height: auto;
  }
  .tab-item {
      flex: 1 1 200px;
      height: 50px;
  }
}

@media (max-width: 768px) {
  .solution-header {
      padding-top: 40px;
      text-align: center;
  }
  .solution-header h1::after {
      left: 50%;
      transform: translateX(-50%);
  }
  .solution-header p {
      max-width: 100%;
  }
  .carousel-card {
      padding: 30px 20px;
  }
  .carousel-card .cn-title {
      font-size: 20px;
  }
}

@media (max-width: 480px) {
  .solution-content {
      padding: 0 20px;
  }
  .solution-header h1 {
      font-size: 24px;
      line-height: 30px;
  }
  .tab-item {
      flex: 1 1 100%;
  }
  .carousel-btn {
      width: 35px;
      height: 45px;
  }
}

/* advantages 5大优势 */
.advantages{padding:80px 0;background:#f9f9f9;}
.advantages .title{text-align:center;margin-bottom:60px;}
.advantages .title h2{font-size:42px;color:#000;line-height: 60px;}
.adv-list{display:flex;}
.adv-item{flex:1;background:#fff;padding:40px 20px;text-align:center;border:1px solid #ddd;transition: all .5s;}
.adv-icon{width:100px;height:100px;overflow:hidden;margin:0 auto 20px;}
.adv-item .adv-icon .star{transition: all .5s;}
.adv-item .adv-icon .star-red{transition: all .5s;}
.adv-icon img{width:100%;height:100%;object-fit:contain;}
.adv-item h3{font-size:18px;margin-bottom:10px;color:#333;height:48px;line-height:24px;}
.adv-item p{font-size:13px;color:#666;line-height:1.6;}

.adv-item:hover{
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.adv-item:hover .adv-icon .star{
  transform: translateY(-100%);
}
.adv-item:hover .adv-icon .star-red{
  transform: translateY(-100%);
}

/* about 关于我们 */
 /* 主体容器 */
 .about-section {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
}

.about-wrap {
  width: 100%;
  height: 480px;
  background-color: rgba(0,0,0,0.1);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.about-bg {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 100%;
  background: url('/images/aboutBg.jpg') center/cover no-repeat;
  opacity: 0.5;
}
.about-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, #000000 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.1) 100%);
}
.about-text {
  position: relative;
  z-index: 1;
  width: 50%;
  padding-left: 120px;
  color: #fff;
}
.about-text h1 {
  font-size: 42px;
  line-height: 60px;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.about-text p.subtitle {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 80px;
}
.aboutUs-C h1{
  font-weight: bold;
  background: #212d45;
  -webkit-background-clip: text;
  color: transparent;
  position: relative;
}
.aboutUs-C h1:after{
  content: "";
  display: block;
  width: 65%;
  height: 1px;
  background: #ddd;
  position: absolute;
  right:0;
  bottom:0;
}
.aboutUs-C-top{
  display: grid;
  gap: 60px;
  grid-template-columns: repeat(2,1fr);
  margin:60px 0;
  /* justify-content: center;
  align-items: center; */
  border-bottom: 1px solid #ddd;
  padding-bottom:60px;
}
.aboutUs-c-top-left{
  line-height: 30px;
  background: url(../../images/a-rx.png) no-repeat right bottom;
  background-size:80%;
}
.aboutUs-c-top-pic{
  border-radius: 20px;
  overflow: hidden;
}
.aboutUs-c-top-pic img{
  transition: all .5s;
}
.aboutUs-c-top-pic:hover img{
  transform: scale(1.1);
}
.aboutUs-c-middle,.aboutUs-c-bottom{line-height: 30px;}
.aboutUs-c-middle h1{
  text-align: center;
  margin-bottom:40px;
}
.aboutUs-c-middle h1::after{display: none;}

.aboutUs-c-bottom{
  display: grid;
  gap: 60px;
  grid-template-columns: 30% 70%;
  margin-top:60px;
  align-items: center;
  justify-content: center;
}
.aboutUs-c-bottom-pic,.aboutUs-c-pic-list{
  border-radius: 20px;
  overflow: hidden;
}
.aboutUs-c-bottom-pic img,.aboutUs-c-pic-list img{
  transition: all .5s;
}
.aboutUs-c-bottom-pic:hover img{
  transform: scale(1.1);
}
.aboutUs-c-pic-item{
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(3,1fr);
  margin-top:60px;
}
.aboutUs-c-pic-list:hover img{
  transform: scale(1.1);
}



/* 播放按钮 + 动画 */
.video-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}
.play-circle {
  width: 100px;
  height: 100px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  position: relative;
  /* 核心：呼吸缩放动画 */
  animation: pulse 2s infinite ease-in-out;
}
/* 动画关键帧 */
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

.play-circle::before {
  content: '';
  position: absolute;
  width: 110px;
  height: 110px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
}
.play-icon {
  width: 0;
  height: 0;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  border-left: 20px solid #fff;
  margin-left: 4px;
}
.video-btn span{
  transform: translateX(-30px);
}

/* ====================== 底部内容区域 ====================== */
.content-wrap {
  width: 100%;
  display: flex;
}
/* 左侧介绍 */
.intro-left {
  width: 60%;
  padding: 60px 120px;
  background: #f8f9fa;
}
.intro-left h2 {
  font-size: 22px;
  color: #222;
  margin-bottom: 20px;
}
.intro-left p {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
  margin-bottom: 30px;
}
.more-btn {
  display: inline-block;
  padding: 12px 36px;
  background: #ffc03d;
  color: #fff;
  text-decoration: none;
  border-radius: 2px;
  transition: .3s;
}
.more-btn:hover {
  background: #ffc03d;
}

/* 右侧双卡片 */
.info-right {
  width: 40%;
  display: flex;
}
.info-card {
  flex: 1;
  background: #ffc03d;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  padding: 20px;
}
.info-card:last-child {
  background-color: #212d45;
  background-image: url(../../images/honorBg.jpg);
  background-repeat: no-repeat;
  background-position: center;
  background-size:cover;
}
.info-icon-wrap {
  width: 100px;
  height: 100px;
  border: 2px solid rgba(33,45,69,1);
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.info-icon {
  width: 60px;
  height: 60px;
  fill: #212d45;
  transition: all .5s;
}
.info-card h3 {
  font-size: 20px;
  font-weight: normal;
  margin-bottom: 10px;
  text-align: center;
  color:#212d45;
}
.info-card::after {
  content: '';
  width: 12px;
  height: 2px;
  background: #212d45;
}
.info-card:hover .info-icon{
  transform: rotate(360deg);
}

/* ====================== 视频弹窗样式 ====================== */
.video-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.modal-content {
  position: relative;
  width: 80%;
  max-width: 1000px;
  background: #000;
}
.close-btn {
  position: absolute;
  top: -40px;
  right: 0;
  color: #fff;
  font-size: 30px;
  cursor: pointer;
  user-select: none;
}
.video-iframe {
  width: 100%;
  height: 500px;
  border: none;
}
/* ====================== 响应式适配 ====================== */
/* 平板设备 */
@media (max-width: 1200px) {
  .banner-text {
      width: 80%;
      padding-left: 60px;
  }
  .intro-left {
      padding: 40px 60px;
  }
}

/* 手机横屏 / 小平板 */
@media (max-width: 992px) {
  .content-wrap {
      flex-direction: column;
  }
  .intro-left,
  .info-right {
      width: 100%;
  }
  .intro-left {
      padding: 40px 30px;
  }
  .info-card {
      min-height: 240px;
  }
}

/* 手机竖屏 */
@media (max-width: 768px) {
  .banner-wrap {
      height: auto;
      min-height: 400px;
      padding: 60px 20px;
  }
  .banner-text {
      width: 100%;
      padding-left: 0;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
  }
  .banner-text h1 {
      font-size: 28px;
  }
  .video-btn {
      /* flex-direction: column;
      gap: 20px; */
      text-align: center;
  }
  .play-circle {
      width: 80px;
      height: 80px;
  }
  .play-circle::before {
      width: 90px;
      height: 90px;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .intro-left {
      padding: 30px 20px;
  }
  .info-right {
      flex-direction: column;
  }
  .info-card {
      padding: 40px 20px;
  }
}

/* clients */
/* .clients{padding:60px 0;}
.clients .title{text-align:center;margin-bottom:40px;}
.client-logos{display:flex;flex-wrap:wrap;gap:25px;justify-content:center;}
.client-logos div{width:calc(20% - 20px);height:80px;background:#fff;border:1px solid #eee;display:flex;align-items:center;justify-content:center;} */

/* 新闻 */
 /* 新闻资讯整体容器 */
 .news-section {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 60px 0px;
}

/* 标题区域 */
.news-title {
  text-align: center;
  font-size: 36px;
  font-weight: bold;
  text-transform: uppercase;
  color: #333;
  margin-bottom: 40px;
  letter-spacing: 1px;
}

/* 标签栏 */
.news-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 60px;
}
.news-tab {
  padding: 10px 30px;
  font-size: 18px;
  color: #666;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
}
.news-tab.active {
  color: #ffc03d;
  font-weight: 500;
}
.news-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #ffc03d;
}
.news-tab:hover {
  color: #ffc03d;
}

/* 新闻内容容器（隐藏非当前内容） */
.news-content-wrap {
  width: 100%;
}
.news-content {
  display: none;
  width: 100%;
}
.news-content.active {
  display: block;
}

/* 新闻内容网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  min-height:530px;
}

/* 新闻卡片样式 */
.news-card {
  display: flex;
  flex-direction: column;
  background-color: #fff;
  overflow: hidden;
  padding: 20px;
  transition: all .5s;
}
.news-card:hover{
  box-shadow: 0 3px 5px 5px rgba(0,0,0,0.1);
}
/* 左侧带图片的特殊卡片 */
.news-card.featured {
  grid-column: span 1;
  grid-row: span 2;
}
.news-card-img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  margin-bottom: 20px;
  transition: all .5s;
  -webkit-transition: all .5s;
  -moz-transition: all .5s;
  -o-transition: all .5s;
}

.news-card.featured:hover .news-card-img{
  transform: scale(1.1);
  -webkit-transform: scale(1.1);
  -moz-transform: scale(1.1);
  -o-transform: scale(1.1);
}
.news-card-title {
  font-size: 18px;
  color: #333;
  font-weight: 500;
  margin-bottom: 15px;
  line-height: 1.4;
  height:48px;
  overflow:hidden
}
.news-card-desc {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 60px;
  position: relative;
}
.news-card-footer::before{
  content: "";
  display:block;
  width:100%;
  height:1px;
  background-color:#ddd;
  position: absolute;
  top:-30px;
  left:0;
}
.news-card-more {
  font-size: 16px;
  color: #ffc03d;
  text-decoration: none;
  display: inline-block;
}
.news-card-date {
  font-size: 14px;
  color: #999;
}

/* ====================== 响应式适配 ====================== */
@media (max-width: 992px) {
  .news-grid {
      grid-template-columns: repeat(2, 1fr);
  }
  .news-card.featured {
      grid-column: span 2;
      grid-row: span 1;
      flex-direction: row;
  }
  .news-card.featured .news-card-img {
      width: 40%;
      height: auto;
      margin-bottom: 0;
      margin-right: 20px;
  }
  .news-title {
      font-size: 30px;
  }
}

@media (max-width: 768px) {
  .news-section {
      padding: 40px 10px;
  }
  /* .news-grid {
      grid-template-columns: 1fr;
      gap: 20px;
  } */
  .news-card{padding: 10px;}
  .news-card-footer{margin-top: 30px;display: block;}
  .news-card-footer::before{top:-10px;}
  .news-card-more{display: block;}
  .news-card.featured {
      flex-direction: column;
  }
  .news-card.featured .news-card-img {
      width: 100%;
      height: 220px;
      margin-right: 0;
      margin-bottom: 15px;
  }
  .news-tab {
      padding: 8px 20px;
      font-size: 16px;
  }
  .news-title {
      font-size: 26px;
      margin-bottom: 30px;
  }
  .news-card-title {
      font-size: 16px;
  }
  .footer-qrcode{display: block;width: 100%;}
  .qrcode-box{margin: 0 auto;}
}

@media (max-width: 480px) {
  .news-tabs {
      flex-direction: column;
      align-items: center;
      border-bottom: none;
      margin-bottom:30px;
  }
  .news-tab {
      width: 100%;
      text-align: center;
      padding: 10px 0;
      border-bottom: 1px solid #e0e0e0;
  }
  .news-tab.active::after {
      width: 60px;
      left: 50%;
      transform: translateX(-50%);
  }
  .news-card-img {
      height: 200px;
  }
  .news-title {
      font-size: 22px;
  }
}


/* 页脚整体容器 */
footer {
  background-color: #000; /* 深灰色背景精准匹配 */
  color: #ffffff;
  padding: 60px 60px 20px;
  width: 100%;
}

/* 页脚内容容器 */
.footer-content {
  width:100%;
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 40px;
}

/* 左侧导航列容器 */
.footer-nav {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 80px; /* 列之间间距匹配设计图 */
}

/* 单个导航列样式 */
.footer-nav-column {
  min-width: 120px;
}

/* 导航列标题 */
.nav-column-title {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 10px;
  color: #ffffff;
  position: relative;
  padding-bottom: 8px;
}

/* 标题下方细蓝线（匹配设计图） */
.nav-column-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 2px;
  background-color: #ffc03d;
}

/* 导航列表 */
.nav-list {
  list-style: none;
}

/* 导航列表项 */
.nav-list li {
  line-height: 24px;
}

/* 导航链接 */
.nav-list a {
  color: #cccccc; /* 浅灰色文字匹配设计图 */
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s;
}

.nav-list a:hover {
  color: #ffffff;
}

/* 中间24h热线区域 */
.footer-hotline {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
  min-width: 200px;
}

.hotline-label {
  font-size: 16px;
  color: #ffffff;
}

/* 热线输入框/展示框 */
.hotline-input {
  width: 220px;
  height: 40px;
  background-color: #444444;
  border: none;
  outline: none;
  padding: 0 15px;
  color: #ffffff;
  font-size: 14px;
}

/* 立即咨询按钮 */
.consult-btn {
  background: linear-gradient(to right, #0066ff, #0044cc); /* 渐变蓝匹配设计图 */
  color: #ffffff;
  border: none;
  outline: none;
  padding: 10px 30px;
  font-size: 16px;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.3s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.consult-btn:hover {
  opacity: 0.9;
}

/* 右侧联系方式区域 */
.footer-contact {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  min-width: 300px;
}

/* 联系方式图标列 */
.contact-icons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width:30%;
  line-height:30px
}

.contact-icon {
  display: flex;
  color: #ffffff;
  font-size: 16px;
  align-items:baseline;
}
.contact-icon span{margin-right:10px}

/* 联系方式内容框 */
.contact-content {
  width: 220px;
  height: 140px;
  background-color: #444444;
  border-radius: 4px;
}

/* 扫码区域 */
.footer-qrcode {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qrcode-box {
  width: 100px;
  height: 100px;
  background-color: #444444;
  border-radius: 4px;
}

.qrcode-text {
  font-size: 14px;
  color: #cccccc;
  text-align: center;
}
.facebook{
  border-top:1px solid #ddd;
  padding-top:10px;
}
.facebook span.fa-facebook-official:before{
  font-size: 30px;
  color:#49a6f5;
}
/* 底部版权栏 */
.copyright{width:100%;overflow:hidden}
.footer-copyright {
  max-width:1600px;
  width:100%;
  border-top: 1px solid #444444;
  padding-top: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  margin:0 auto;
}

.copyright-text {
  font-size: 14px;
  color: #999999;
}

.tech-support {
  font-size: 14px;
  color: #999999;
}

/* ====================== 响应式适配 ====================== */
@media (max-width: 1200px) {
  .footer-nav {
      gap: 60px;
  }
  .footer-content {
      gap: 30px;
  }
}

@media (max-width: 992px) {
  footer {
      padding: 40px 30px 20px;
  }
  .footer-content {
      flex-direction: column;
      align-items: flex-start;
      gap: 40px;
  }
  .footer-nav {
      width: 100%;
      gap: 40px;
  }
  .footer-hotline, .footer-contact {
      width: 100%;
      max-width: 400px;
  }
}

@media (max-width: 768px) {
  .footer-nav {
      flex-wrap: wrap;
      gap: 30px;
      display: none;
  }
  .contact-icons{width:100%}
  .footer-nav-column {
      width: calc(50% - 15px);
      min-width: unset;
  }
  .footer-contact {
      flex-direction: column;
      gap: 15px;
  }
  .contact-content {
      width: 100%;
  }
}

@media (max-width: 480px) {
  footer {
      padding: 30px 20px 15px;
  }
  .footer-nav-column {
      width: 100%;
  }
  .hotline-input {
      width: 100%;
  }
  .consult-btn {
      width: 100%;
      justify-content: center;
  }
  .footer-copyright {
      flex-direction: column;
      align-items: flex-start;
      gap:unset
  }
  .zixun-con{padding:0 10px;}
}
.b-logo{
    width:30%;
    height: 100px;
    display: flex;
    flex-wrap: wrap;
    margin-top:30px;
}

.b-logo img{
    object-fit: contain;
}

/* 响应式 */
@media (max-width:1200px){
  .container{width:100%;padding:0 15px;}
  .adv-list{flex-wrap: wrap;}
.adv-item{width:33.33%;flex:auto;}

}
@media (max-width:992px){
  .banner{height:500px;}
  .banner-text h1{font-size:40px;}
  .stats-list{flex-wrap:wrap;}
  .stats-item{width:50%;}
  .adv-list{flex-wrap:wrap;}
  .adv-item{width:calc(50% - 12.5px);flex:none;}
  .about{height:auto;padding:40px 10px;}
  .about-wrap{flex-direction:column;gap:40px;height: 350px;}
  .about-left,.about-right{width:100%;padding:0 15px;}
  .news-wrap{flex-direction:column;}
  .news-col.left{width:100%;}
  .solutions-box{position:static;transform:none;width:100%;margin-top:30px;}
  .solutions{height:auto;padding:60px 0;}
  .nav-container{padding:0 10px;}
  .navbar{height: auto;}
  .aboutUs-C h1{font-size: 24px;}
  .aboutUs-C-top{margin:30px 0;display: block;padding-bottom:30px;}
  .aboutUs-c-bottom{margin-top:20px;display: block;}
  .aboutUs-c-pic-item{margin-top:30px;gap: 10px;}
  .case-container,.case-container a{height:113px}1
  .case-container a img{max-height:103px}
}
@media (max-width:900px){
  .menu{
    position:fixed;
    top:0;
    right:-100%;
    width:260px;
    height:100vh;
    background:#fff;
    color:#333;
    flex-direction:column;
    padding:100px 20px 30px;
    transition:0.4s;
    box-shadow:-2px 0 10px rgba(0,0,0,0.1);
    gap:0;
  }
  .menu.show{right:0;}
  .menu-item{
    line-height:50px;
    border-bottom:1px solid #eee;
    position:relative;
  }
  .mobile-menu-btn{display:block;}
  
  /* 移动端箭头只在手机显示 + PC不显示 */
  .menu-item.has-sub::after{
    content:"+";
    position:absolute;
    right:0;
    top:0;
    width:40px;
    height:50px;
    line-height:50px;
    text-align:center;
    font-size:18px;
    color:#666;
  }
  .menu-item.has-sub.active::after{content:"−";}

  /* 移动端二级菜单默认隐藏 无背景色 */
  .submenu{
    position:static;
    transform:none;
    box-shadow:none;
    padding-left:15px;
    max-height:0;
    opacity:1;
    visibility:visible;
    overflow:hidden;
    transition:max-height 0.3s ease;
    background:none !important;
  }
  .menu-item.active .submenu{
    max-height:300px;
  }
}
@media (max-width:768px){
  .banner-text{left:15px;right:15px;transform:none;top:40%;}
  .banner-text h1{font-size:24px;}
  /* .card{width:calc(50% - 15px);} */
  .products-top{flex-direction:column;align-items:flex-start;gap:20px;}
  .client-logos div{width:calc(33.33% - 17px);}
  .stats-item h2{font-size: 36px;}
  .stats,.products{padding:30px 0;}
  .products-left h2{font-size: 24px;line-height:30px}
  .grid{grid-template-columns: repeat(2, 1fr);}
  .carousel-card .desc{display: none;}
  .advantages{padding:40px 0;}
  .advantages .title h2{font-size: 24px;line-height: 30px;}
  .advantages .title{margin-bottom: 30px;}
  .about-text{padding-left: 10px;width: 100%;padding-right:10px;}
  .about-text h1{font-size: 24px;padding-top: 60px;margin-bottom:0;}
  .card img{height:138px}
}
@media (max-width:576px){
  .stats-item{width:50%;}
  .adv-item{width:100%;}
  .client-logos div{width:calc(50% - 12.5px);}
}