hjsilicon/css/header.css

.header{
    width: 100%;
    height: 15vh;
    background-color: #030045;
    position: relative;
    margin-bottom: 0;
    margin-bottom: -1px;
    /* background: padding-box; */
    display: flex;
    align-items: center;
    justify-content: center;
}

.header .bg{
    width: 20vw;
    height: 35%;
    /* background: palegoldenrod; */
    position: absolute;
    bottom: 0;
    left: 24vw;
}
.header .bg img{
    width: 100%;
    height:auto;
   
}
.header .container{
    width: 100%;
    height: 65%;
    display: flex;
    align-items: center;
    /* justify-content: space-around; */
    /* background: palegoldenrod; */
}
.logo{
    width: 50%;
    height: 100%;
    display: flex;
    align-items: center;
    padding-left: 10vw;
}
.logo img{  
    width: 4vw;   
    height: auto;
    max-height: 4vw;
    display: block;
    object-fit: contain; /* 保证图片不变形 */
}
.header ul{
    width: auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    /* background: palevioletred; */
    margin-left: 5vw;
    /* padding-right: 10vw; */
}
.header ul li{
    /* width: 100%; */
    min-width: 5vw;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9vw;
    margin-left: 1vw;
    /* background: palegreen; */
  
   
}
.header ul li a{
    display: inline-block;
    color: #009FD1;
    transition: all 0.2s ease;
    font-weight: 600;
    font-size: 1vw;
    position: relative;
    padding-bottom: 2vh;
}
.header ul li a:hover{
    font-size: 1vw;
    color: #fff;
  text-shadow: 0 0 10px rgba(41, 111, 216, 0.5);
}
/* .active{
    background: palegoldenrod;
} */
.actives::before{
  content:url(../imgs/svg/页面选择图标.svg);
  width: 100%;
  height: auto;
  position: absolute;
  bottom:  0;
  left: 0;
}
.language{
    /* width: 10%; */
    /* height: 100%; */
    /* background: palegoldenrod; */
    /* line-height:5vh; */
    padding-bottom: 2vh;
    border:none;
    outline: none;
    cursor: pointer;
    color: #009FD1;
    transition: all 0.2s ease;
    font-weight: 600;
    font-size: 1vw;
    background: transparent;
    margin-left: 1vw;
    
}
.language:hover{
    color: #fff;
    text-shadow: 0 0 10px rgba(41, 111, 216, 0.5);
}


/* -------------------- */

/* 语言切换下拉框样式 */
.lang-dropdown {
    position: relative;
    display: inline-block;
    cursor: pointer;
    margin-bottom: 2vh;
    margin-left: 8px;
}

.lang-btn {
    display: flex;
    align-items: center;
    background-color: transparent;
    color: #ffffff;
    border: none;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.8vw;
    transition: all 0.3s ease;
    font-weight: 600;
}

.lang-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.lang-btn img {
    width: 20px;
    height: 14px;
    margin-right: 8px;
    border-radius: 2px;
    object-fit: cover;
}

.lang-btn .arrow {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.lang-dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    top: 100%; /* 确保设置了这个值 */
    min-width: 120px;
    background-color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    z-index: 1000;
    overflow: hidden;
}

.lang-dropdown-content.show {
    display: block;
    animation: fadeIn 0.2s ease;
}

.lang-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    color: #333;
    text-decoration: none;
    transition: all 0.2s ease;
}

.lang-item:hover {
    background-color: #f5f5f5;
}

.lang-item img {
    width: 20px;
    height: 14px;
    margin-right: 8px;
    border-radius: 2px;
    object-fit: cover;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}