.banner-container {
    width: 1200px;
    margin: 0 auto;
    height:190px;
}

* {
    margin: 0;
    padding: 0;
}

.breadcrumb {
    height: 40px;
    background: #F3F3F3;
    padding-left: 10px;
    margin-bottom: 19px;
    padding-top: 0;
    margin-top: 20px;
    line-height: 40px;
    box-sizing: border-box;
}
.banner-container .logo-container {
    padding-top: 68px;
}
.fr{float: right;}
.banner-container .logo-container .logo{width: 510px;margin-left: 50px;}
.banner-container .logo-container .fr{display: flex;    flex-direction: column}
.banner-container .logo-container .fr .fw{width: 382px;margin-bottom: 15px;margin-top: 12px;}

.nav_m {
    width: 100%;
    margin: 0 auto;
    height: 50px;
    background: #bd1a2d;
    opacity: 1;

}
/* 确保 li 是相对定位，作为 nav-down 的定位基准 */
.menu > li {
    position: relative; /* 新增 */
    padding-bottom: 10px; /* 可选：为下拉菜单预留空间 */
}

/* 调整 nav-down 的定位 */
.nav-down {
    position: absolute;
    top: 100%; /* 从 li 的底部开始显示 */
    left: 0;
    width: 100%;
    height: auto;
    background: #FFFFFF;
    box-shadow: 0px 4px 16px 0px rgba(11, 29, 86, 0.2);
    border-radius: 4px;
    display: none; /* 默认隐藏 */
    z-index: 100; /* 确保悬浮层在最前 */
}

/* 其他样式保持不变 */
.nav-down .nav-list { flex: 1; }
.nav-down .nav-list ul { 
    display: flex; 
    align-items: center; 
    flex-wrap: wrap; 
    width: 100%; 
}
.menu li:hover .nav-list ul li a{
    border: none;
    text-align: center;
}
.menu li .nav-list ul li a:hover{
    color: #FFFFFF;

}
/* ... 其他子样式 ... */
  .nav-down .nav-list{flex:1}
  .nav-down .nav-list ul{display: flex;align-items: center;flex-wrap: wrap;width: 100%;margin-top: 10px;}
  .nav-down .nav-list ul li{font-weight: 400;height: auto;font-size: 18px;padding: 0;color: #666666;line-height: 32px;height: 32px;width: 100%;position: relative;}
  .nav-down .nav-list ul li a{color: #666666;font-size: 14px;height: 32px;line-height: 32px;}
  .nav-down .nav-list ul li{
    position: relative; /* 确保伪元素定位正确 */

}
.searchform {
    float: right;

}

.banner-container .logo-container .searchform .text {
    width: 300px;
    height: 40px;
    border-radius: 5px 5px 5px 5px;
    opacity: 1;
    border: 2px solid #EDEDED;
    margin-top: 37px;
}

.nav_m .menu {
    width: 1200px;
    height:50px;
    margin: 0 auto;
}

.nav_m .menu li {
    float: left;
    height: 50px;
    line-height: 50px;
    padding: 0 52px;
    text-decoration: none;
}

.nav_m .menu li a {
    display: block;
    font-size: 18px;
    font-family: MicrosoftYaHei;
    color: #FFFFFF;
    line-height: 50px;
}
.nav_m .menu li:hover .nav-down {
    display: flex !important;
}

a {
    text-decoration: none;
    color: #333;
}

li {
    list-style-type: none;
}

.searchform {
    height: 34px;
    background: #fff;
}
.searchform .searchInput {
    height: 30px;
    border: 2px solid #bd1a2d;
    width: 273px;
    float: right;
}
.searchform .searchInput .searchtext {
    width: 28px;
    height: 30px;
    color: #656565;
    font-size: 14px;
    line-height: 30px;
    margin: 0 10px 0 22px;
    float: left;
}
.searchform .searchInput input {
    float: left;
    width: 235px;
    height: 30px;
    line-height: 30px;
    box-sizing: border-box;
    border-width: 0;
    outline: none;
    font-size: 14px;
    padding-left: 10px;
}

.searchform .searchInput .searchBtn {
    float: left;
}
.searchform .searchInput .searchBtn img {
    margin-top: 4px;
    margin-left: 7px;
}

  
  .menu li:hover {
    background: #dd3645;
  }