/* 主体 */
section{
  overflow-x: hidden;
}
.banner {
}
.slideBox {
  width: 100%;
  height: 480px;
  overflow: hidden;
  position: relative;
  border: 1px solid #ddd;
}
.slideBox .hd {
  height: 15px;
  overflow: hidden;
  position: absolute;
  left: 50%;
  bottom: 5px;
  z-index: 1;
}
.slideBox .hd ul {
  overflow: hidden;
  zoom: 1;
  float: left;
}
.slideBox .hd ul li {
  float: left;
  margin-right: 15px;
  width: 14px;
  height: 14px;
  line-height: 14px;
  text-align: center;
  background: #fff;
  cursor: pointer;
  border-radius: 50%;
}
.slideBox .hd ul li.on {
  background: #165fa6;
  color: #fff;
}
.slideBox .bd {
  position: relative;
  height: 100%;
  z-index: 0;
}
.slideBox .bd li {
  zoom: 1;
  vertical-align: middle;
}
.slideBox .bd img {
  width: 100%;
  height: 480px;
  display: block;
}

.bt {
  height: 50px;
  line-height: 50px;
  border-bottom: 1px solid #d8d8d8;
}
.bt h1 {
  width: 50%;
  font-size: 24px;
  font-weight: bold;
  color: #165fa8;
  line-height: 28px;
  display: inline-block;
}
.bt > a {
  float: right;
  font-size: 18px;
  font-family: Calibri;
  font-weight: 300;
  color: #165fa6;
}
.bt a:hover {
  font-weight: bold;
}

.r1 {
  margin-top: 50px;
}
.tzgg {
  width: 570px;
}
.lin_fl {
  margin-top: 20px;
}
.lin_fl li {
  height: 52px;
  line-height: 52px;
  border-bottom: 1px dashed #eaeaea;
  background: url(../images/xiaoxi.png) no-repeat 0px 18px;
}
.lin_fl li a {
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
  padding-left: 25px;
}
.lin_fl li span {
  float: right;
  font-size: 16px;
  font-family: Calibri;
  font-weight: 300;
  color: #666666;
}
.lin_fl li:hover a,
.lin_fl li:hover span {
  color: #165fa6;
  font-weight: bold;
}

.ssbd {
  width: 570px;
}
.list_ssbd {
  margin-top: 20px;
}
.list_ssbd li {
  height: 110px;
  background: #f6f8ff;
  padding: 10px 20px;
  margin-bottom: 13px;
}
.list_ssbd li:last-of-type {
  margin-bottom: 0px;
}
.ss_fl {
  width: 70px;
  text-align: center;
  position: relative;
}
.ss_fl::after {
  content: "";
  position: absolute;
  left: auto;
  top: auto;
  bottom: 0px;
  right: -20px;
  height: 100%;
  width: 1px;
  background-color: #cabded;
}
.ss_fl h1 {
  height: 52px;
  background: #165fa6;
  border-radius: 10px;
  font-size: 36px;
  font-family: Calibri;
  font-weight: bold;
  color: #ffffff;
  line-height: 55px;
}
.ss_fl span {
  margin-top: 10px;
  display: block;
  height: 24px;
  background: #cab6f6;
  border-radius:5px;
}
.ss_fr {
  width: 420px;
}
.ss_fr a {
  font-size: 16px;
  font-weight: 400;
  color: #333333;
}
.ss_fr a:hover {
  color: #165fa6;
  font-weight: bold;
}
.ss_fr p {
  font-size: 14px;
  font-weight: 400;
  color: #888888;
  line-height: 25px;
  margin-top: 10px;
}

.sssp {
  margin-top: 40px;
}
.sssp_list {
  margin-top: 20px;
}

.container .bd {
  margin-top: 20px;
}
.container .bd ul li {
  float: left;
  width: 278px;
  height: 185px;
  position: relative;
  overflow: hidden;
  margin-right: 29px;
}
.container .bd ul li:last-child {
  margin-right: 0px;
}
.port-1 {
  width: 278px;
  height: 185px;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.port-1 .image-box {
  position: relative;
}
.port-1 .image-box > img {
  width: 278px;
  height: 185px;
  transition: 0.5s;
}
.port-1 .image-box .images_box_txt {
  width: 100%;
  height: 42px;
  position: absolute;
  bottom: 0;
  /* background: #47505442; */
}
.port-1 .image-box .images_box_txt a {
  font-size: 20px;
  font-weight: 400;
  text-align: left;
  color: #ffffff;
  line-height: 42px;
  letter-spacing: 1px;
}
.images_box_txt img {
  position: absolute;
  right: 25px;
  bottom: 20px;
}
.port-1 .image-box:hover img {
  transform: scale(1.2);
}
.port-1 .text-desc {
  position: absolute;
  left: 0;
  background-color: rgb(22 95 166 / 70%);
  width: 278px;
  height: 185px;
  opacity: 0.9;
  top: -100%;
  transition: 0.5s;
  color: #000;
}
.port-1 .text-desc h3 {
  height: 40px;
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  color: #ffffff;
  line-height: 40px;
  letter-spacing: 1px;
  margin-top: 40px;
}
.port-1 .text-desc h4 {
  height: 40px;
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  color: #ffffff;
  line-height: 40px;
  letter-spacing: 1px;
}
/* .port-1 .text-desc p {
  width: 352px;
  height: 75px;
  font-size: 16px;
  font-weight: 400;
  text-align: center;
  color: #ffffff;
  line-height: 28px;
  letter-spacing: 0.8px;
} */
.port-1 .text-desc .btn {
  display: inline-block;
  padding: 5px 10px;
  font-size: 14px;
  color: #fff;
  text-decoration: none;
  transition: 0.4s;

  font-weight: 400;
  color: #ffffff;
  line-height: 32px;
  opacity: 0.5;
}
.port-1 .text-desc .btn:hover {
  background-color: transparent;
  transition: 0.4s;
}
.port-1.effect-1:hover .text-desc {
  top: 0;
}

.sstp {
  margin-top: 40px;
}
.sstp_list {
  margin-top: 20px;
}
.sstp_list li {
  width: 278px;
  height: 185px;
  position: relative;
  margin-right: 29px;
  float: left;
  overflow: hidden;
}
.sstp_list li:last-of-type {
  margin-right: 0px;
}
.sstp_list li a img {
  width: 278px;
  height: 185px;
  transition: all 1s;
}
.sstp_list li a img:hover {
  transform: scale(1.1);
}
.tp_text {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 33px;
  line-height: 33px;
  background-color: rgb(0 0 0 / 50%);
  text-align: center;
}
.tp_text > a {
  font-size: 18px;
  font-weight: 400;
  color: #ffffff;
}

/* link */
.link {
  height: auto;
  border-top: 1px solid #d8d8d8;
  margin-top: 40px;
}
.link_list {
  margin-top: 20px;
}
.link_list li {
  padding: 0 20px;
  float: left;
}
.link_list li:first-of-type {
  padding: 0 20px 0 0;
}
.link_list li a {
  font-size: 20px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #333333;
  line-height: 48px;
}
.link_list li a:hover {
  color: #165fa6;
  font-weight: bold;
}
.link_list .lin_img {
  margin-top: 10px;
}

/* 菜单 */

       * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        nav {
            background-color: #0d47a1; /* 深蓝色 */
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            border-bottom: 3px solid #82b1ff;
			font-size:20px;
        }
        
        .nav-menu {
            list-style: none;
            display: flex;
            justify-content: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .nav-menu li {
            position: relative;
        }
        
        .nav-menu li a {
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            padding: 18px 25px;
            text-align: center;
            font-size: 18px;
            letter-spacing: 0.5px;
            transition: all 0.3s ease;
        }
        
        .nav-menu li:hover {
            background-color: #1565c0;
        }
        
        /* 二级菜单样式 */
        .submenu {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background-color: #1976d2;
            width: 126px;
            list-style: none;
            display: none;
            border-radius: 0 0 4px 4px;
            z-index: 100;
        }
        
        .submenu li {
            width: 100%;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        
        .submenu li:last-child {
            border-bottom: none;
        }
        
        .submenu li a {
            justify-content: flex-start;
            padding: 14px 20px;
            font-size: 16px;
        }
        
        .nav-menu li:hover .submenu {
            display: block;
        }
        
        .submenu li:hover {
            background-color: #2196f3;
        }
		
		 /* 顶部通栏容器 */
        .header-banner {
            position: relative;
            width: 100%;
            height: 594px; /* 根据你的图片调整高度 */
            background-image:url( '../images/banner.jpg'); /* 替换为你的图片URL */
            background-size: cover;
            background-position: center;
        }
        

        
        /* 图片按钮容器 - 定位到右下角 */
        .image-buttons {
            position: absolute;
            right: 368px;
            bottom: 36px;
            display: flex;
            gap: 20px;
            z-index: 2;
        }
        
        /* 图片按钮样式 */
        .image-button {
            display: block;
            width: 275px; /* 按钮图片宽度 */
            height: 52px; /* 按钮图片高度 */
            border-radius: 5%; /* 圆形按钮 */
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
            border: 0px solid white;
        }
        
        /* 图片按钮内部图片样式 */
        .image-button img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        /* 鼠标悬停效果 */
        .image-button:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
        }