/*body {*/
/*    font-family: 'Noto Sans SC', sans-serif;*/
/*    background-color: #ffffff;*/
/*    margin: 0;*/
/*    padding: 0;*/
/*    color: #1e1e1e;*/
/*}*/
#Head_navigation_bar-navbar {
    display: flex;
    background-color: #0a5cad;
    padding: 10px 0;
    justify-content: center;
    flex-wrap: wrap;
}
.Head_navigation_bar-navbar-item {
    position: relative;
    color: #ffffff;
    padding: 10px 15px;
    cursor: pointer;
    font-size: 14px;
    white-space: nowrap;
    transition: background-color 0.3s;
}
.Head_navigation_bar-navbar-item:hover {
    background-color: #0068b7;
}
.Head_navigation_bar-submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #f6f7ff;
    border: 1px solid #0a5cad;
    /*border-radius: 5px;*/
    padding: 10px;
    z-index: 1000;
    min-width: 200px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.Head_navigation_bar-navbar-item:hover .Head_navigation_bar-submenu {
    display: block;
}
.Head_navigation_bar-submenu-item {
    color: #575757;
    padding: 5px 0;
    cursor: pointer;
    transition: color 0.3s;
}
.Head_navigation_bar-submenu-item:hover {
    color: #0068b7;
}