/* 响应式导航栏 */
*{
    margin:0;
    padding:0;
}
a:link{
    text-decoration: none;
    color:#222;
}
a:visited{
    text-decoration: none;
    color:#222;
}

a:hover{
    text-decoration: none;
    color:blue;
}
 a:active {
    text-decoration: none;
    color:#222;
}

.navbar ul {
    display: flex;
    gap: 30px;
}
.navbar .dropdown {
    display: none;
    position: absolute;
    background: #fff;
}
.navbar li:hover .dropdown {
    display: block;
}

div{
    margin:0;
    padding:0;
}
/* 轮播图动画 */
.carousel {
    position: relative;
    overflow: hidden;
}
.slide {
    display: none;
    animation: fade 1.5s;
}
.slide.active { display: block; }

@keyframes fade {
    from { opacity: 0.4; }
    to { opacity: 1; }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .navbar ul { display: none; }
    .menu-toggle { display: block; }
}