/* 顶部导航 */
.header {
  
    height: 140px;
    /* display: flex; */
    justify-content: center;
    align-items: center;
    padding: 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0; /* 移除内边距，确保与导航菜单对齐 */
    width: 100%; /* 确保容器占满宽度 */
    max-width: 1300px; /* 限制最大宽度 */
}

.logo {
    height: 80px;

     margin-left: 30px; 
}
.logo-container a {
    text-decoration: none;
    display: block;
}
.search-box {
    display: flex;
    border: 1px solid #ddd;
    border-radius: 20px;
    overflow: hidden;
    margin-right: 30px; /* */
    /* 移除负边距 */
}

.search-box input {
    width: 200px;
    height: 36px;
    border: none;
    padding: 0 15px;
    outline: none;
}

.search-box button {
    width: 40px;
    height: 36px;
    border: none;
    background-color: #0056b3;
    cursor: pointer;
}

.search-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #fff;
    border-radius: 50%;
    position: relative;
}

.search-icon:after {
    content: '';
    position: absolute;
    width: 2px;
    height: 8px;
    background: #fff;
    bottom: -6px;
    right: -2px;
    transform: rotate(-45deg);
}