/* 导航全局样式 */
.nav-bar {
    background: #222;
    padding: 15px;
    display: flex;
    justify-content: center;
    gap:15px;
    border-radius:6px;
    margin-top:2px;
    margin-bottom:2px;
}
.nav-bar > a {
    color: #fff !important;
    font-size:17px !important;
    font-weight:normal !important;
    text-decoration:none !important;
    padding:0 10px !important;
    transition:0.2s;
}
/* 所有导航统一悬浮效果：深蓝色底色+白色文字 */
.nav-bar > a:hover,
.nav-bar .dropdown > a:hover {
    background-color:#003370;
    color:#ffffff !important;
}

.dropdown {
    position:relative;
    z-index:999;
    display:flex;
    align-items:center;
}
.dropdown-menu {
    display:none;
    position:absolute;
    top:100%;
    left:0;
    background:#fff;
    min-width:140px;
    width:auto;
    box-shadow:0 3px 10px rgba(0,0,0,0.2);
    z-index:999;
    border-radius:4px;
}
.dropdown:hover .dropdown-menu {
    display:block;
}
.dropdown-menu a {
    display:block;
    color:#000;
    padding:8px 10px;
    white-space:nowrap;
    font-size:14px;
    text-decoration:none;
}
.dropdown-menu a:hover {
    background-color:#003370;
    color:#fff;
}
.nav-bar .dropdown>a {
    color:#fff !important;
    text-decoration:none !important;
}
.nav-bar .dropdown>a:visited {
    color:#fff !important;
}
.nav-bar .dropdown {
    padding:0 !important;
    margin:0 !important;
}
.nav-bar .dropdown>a {
    padding:0 10px !important;
}