*{ list-style-type:none;}
ul{ margin:0px; padding:0px;}
html {
scroll-behavior: smooth;
}
body {
margin: 0px;
padding: 0px;
font-family: "微软雅黑";
width: 100%; background-color:#fff;
}
/* 手机端样式 */
@media (max-width: 768px) {
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 9999;
  height: 60px;
  transition: top 0.3s ease, background 0.3s ease, border 0.3s ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  position: relative;
}

.nav-logo {
  flex-shrink: 0;
  margin-left: 0;
}

.nav-logo img {
  height: 35px;
  width: auto;
}
.nav-search{order: -1; width: 50px;  position: relative; top: -8px; padding: 0;}

.nav-toggle {
  order: 1;
  display: flex;
  z-index: 10000;
  flex-direction: column;
  cursor: pointer;
  padding: 8px 5px;
}

.hamburger {
  width: 25px;
  height: 3px;
  background: #FFF;
  margin: 3px 0;
  position: relative;
}

.nav-menu {
  position: fixed;
  left: -100%;
  top: 60px;
  flex-direction: column;
  background: #fff;
  width: 100%;
  text-align: center;
  transition: left 0.3s ease;
  z-index: 9998;
  height: 100vh;
}

.nav-menu.active {
  left: 0;
}

.nav-item {
  margin: 0; text-align: left;
  padding:0 5%; 
}

.nav-item > a {
  padding: 15px;
  display: block;
  border-bottom: 1px solid #ccc!important;
  color: #000!important;
  outline: none;
  text-decoration: none;
}

.nav-item > a:focus,
.nav-item > a:active {
  border-bottom: 1px solid #ccc!important;
  color: #000!important;
  outline: none;
}

/* 手机端的二级菜单 */
.dropdown-menu {
  border-top:none;
  position: static;
  background: #fff;
  display: block;
  overflow: hidden;
  max-height: 0;
  opacity: 0; 
  transition: max-height 0.3s ease, opacity 0.3s ease;
  box-shadow: none;transform:none;
   visibility: visible;
  
}

.dropdown.active .dropdown-menu {
  max-height: 600px; /* 足够容纳所有子菜单项 */
  opacity: 1;
}

.dropdown-menu li a {
  padding: 10px 20px;
  text-align: left;
  padding-left: 30px;
  text-decoration: none;
  color: #333;
  display: block;
  width: 100%;
}

.layui-container{ padding:0 10%; font-size: 20px;}
.fnt16{ font-size: 14px;}
.news{
width:96%; margin:30px auto; 
}
.news_title_bt{ font-size:30px; color: #252525; font-weight:bold;}
.news_title_more{ font-size:14px; color: #252525; border: 1px solid #949494; border-radius:30px; overflow: hidden;}
.news_title_more a{color: #252525; display: block; width: 100%; height: 100%;padding: 10px 20px;text-decoration: none}
.news_title_more a:hover {
   background-color: #1E3F80;  display: block; color: #333;width: 100%; height: 100%;text-decoration: none
 }


 .news_nei {
    flex-direction: column;
  }
  .news_ppt {
    width: 100%;
    height: auto;
    max-width: 100%;
  }
  .news_list {
    width: 100%;
  }
  .slider-container {
    height: auto;
    max-width: 100%;
    position: relative;
  }
  .slider-container > div {
    position: relative;
  }
  .slide-title {
    position: absolute;
    bottom: 0;
    left: 0;
    font-size: 14px;
    height: 60px;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 10;
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
    overflow: hidden;
  }
  .slide-title span {
    font-size: 12px;
  }
  .main-slide {
    height: 200px;
    max-width: 100%;
  }
  .thumbnails {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    white-space: nowrap;
    width: 100%;
    overflow: hidden;
  }
  .thumbnail {
    width: 31.5%;
    height: 60px;
    flex: 0 0 auto;
  }
  .shiping video {
    height: 200px;
    width: 100%;
  }
.xiangmu{ width:100%; padding: 30px 2% ;  background-color: #F9F9F9; }
  .tab {
        padding: 8px 8px;
        font-size:16px;
      }
    .news-date {
      font-size: 30px;
    }
    .news-content {
      font-size:20px;
    }
    .news-item {
      display: flex;
      align-items: center;
      padding:10px 0; border-bottom: 1px solid #F8F8F8;
    }
   .news-date {
      width:20%; padding-left: 3%;
      text-align: left;
      font-size:40px;
      font-weight: bold;
      color: #254C9D;
    }

.card-content {
      padding:5px 0;
    }
.card {
        flex: 1 1 100%;
        max-width: none;
      }
.card—top{
      display: flex; justify-content: space-between; align-items: center
    }
.card_img{
      display: block;
      height:50vw;
      width: 100%;
      overflow: hidden;
      position: relative;

    }

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1000;
  transition: background 0.3s ease;
}


.foot{ width:100%; padding: 30px 2% ;  background-color: #F9F9F9;  }
.logo {
        flex-direction: column;
        text-align: left;
      }

      .logo img {
       width: 70%;
       height: auto;
      }

      .contact {
        text-align: left;
        font-size: 13px; width: 100%;
      }
.foot_b{ width: 100%;  display: block;}
   .qrcode-container {
    
    flex-wrap: nowrap;justify-content:center;
    gap: 20px;
    padding: 0; margin-bottom: 30px; width: 100%;
  }

.qrcode-item {
       text-align: center;
       padding-left: 0; width: 30%;
  }
  .qrcode-item img {
    width: 100%;
    height: auto; 
  }

  .qrcode-item p {
    font-size:12px;
    margin-top: 0px;
  }

    .footer {
      margin-top: 20px;
      font-size: 12px;
      color: #666;
    }

    .beian {
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .beian img {
      width: 20px;
      height: 20px;
    }

#backToTop {
  display: none;
  position: fixed;
  bottom: 10px;
  right:10px;
  z-index: 99;
  border: none;
  outline: none;
  background-color: #254C9D;
  color: white;
  cursor: pointer;
  padding: 10px;
  border-radius: 50%;
  width:40px;
  height: 40px;
  font-size: 14px;
}



}