/* 页面切换动画 */
.page-transition-enter {
    animation: pageTransitionEnter 0.5s ease-in-out forwards;
}

.page-transition-exit {
    animation: pageTransitionExit 0.5s ease-in-out forwards;
}

@keyframes pageTransitionEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pageTransitionExit {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* 菜单按钮动画 */
.menu-button.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-button.active span:nth-child(2) {
    opacity: 0;
}

.menu-button.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* 轮播动画 */
.carousel-slide-enter {
    animation: carouselSlideEnter 0.5s ease-in-out forwards;
}

.carousel-slide-exit {
    animation: carouselSlideExit 0.5s ease-in-out forwards;
}

@keyframes carouselSlideEnter {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes carouselSlideExit {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-100%);
    }
}

/* 产品卡片悬停动画 */
.product-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

/* 按钮动画 */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::after {
    width: 300px;
    height: 300px;
}

/* 文字渐入动画 */
.text-fade-in {
    animation: textFadeIn 0.8s ease-out forwards;
}

@keyframes textFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 背景粒子动画 */
.particle {
    animation: particleFloat 20s infinite linear;
}

@keyframes particleFloat {
    0% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
    100% {
        transform: translateY(0) rotate(360deg);
    }
}

/* 滚动显示动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* 图标动画 */
.icon-hover {
    transition: transform 0.3s ease;
}

.icon-hover:hover {
    transform: scale(1.2) rotate(5deg);
}

/* 导航链接动画 */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* 加载动画 */
.loading {
    animation: loading 1s infinite linear;
}

@keyframes loading {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* 渐变背景动画 */
.gradient-bg {
    background: linear-gradient(-45deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}