.nav-links {
    display: flex;
    align-items: center;
}
.nav-links > .nav-links-inner {
    display: flex;
    list-style: none;
    padding: 0;
}
.nav-links li {
    position: relative;
    padding: 10px 15px;
}
/* UI改造：下拉菜单样式 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 200px;
    background: var(--white); /* 实心白底，提升可读性 */
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 10px;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
    list-style: none;
    margin: 0;
}
.dropdown-menu li {
    padding: 8px 20px;
}
/* UI改造：下拉菜单链接颜色 - 黑色文字（导航栏是白色背景），hover时黄绿色 */
.dropdown-menu a {
    color: var(--bg-darker);
    text-decoration: none;
    display: block;
    transition: color 0.3s ease;
}
.dropdown-menu a:hover {
    color: var(--primary-color) !important; /* 黄绿色 */
}
@media (min-width: 769px) {
    .has-dropdown:hover .dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
}
@media (max-width: 768px) {
    .nav-links.active {
        display: block;
    }
    .nav-links > .nav-links-inner {
        flex-direction: column;
        width: 100%;
    }
    .nav-links li {
        padding: 12px 20px;
        width: 100%;
        box-sizing: border-box;
    }
    .has-dropdown {
        display: flex;
        flex-direction: column;
    }
    .dropdown-menu {
        position: relative;
        width: 100%;
        box-shadow: none;
        opacity: 1;
        max-height: 0;
        overflow: hidden;
        visibility: visible;
        transform: none;
        transition: max-height 0.3s ease;
        padding: 0;
        background: rgba(10, 25, 47, 0.95);
        border-radius: 0;
        margin-top: 0;
        margin-left: 0;
    }
    .dropdown-menu.active {
        max-height: 500px;
        padding: 10px 0;
    }
    .dropdown-menu li {
        padding: 8px 30px;
    }
   
}