/* 通用交互特效样式 */

/* 滚动动画 - 淡入上移 */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 淡入效果 */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
}

/* 从左侧滑入 */
.slide-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

/* 从右侧滑入 */
.slide-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* 卡片悬浮效果 */
.card-hover {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.15);
}

/* 图片缩放效果 */
.image-zoom {
    overflow: hidden;
}

.image-zoom img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-zoom:hover img {
    transform: scale(1.1);
}

/* 产品卡片效果 - 优化版（不改变形状） */
.product-card {
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.6s;
    z-index: 1;
    pointer-events: none;
}

.product-card:hover::before {
    left: 100%;
}

.product-card:hover {
    box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.2);
}

.product-card img {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), filter 0.3s;
}

.product-card:hover img {
    transform: scale(1.03);
    filter: brightness(1.05);
}

/* 新闻卡片效果 */
.news-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.news-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #000000, #333333);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.news-card:hover::after {
    width: 100%;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.15);
}

.news-card img {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), filter 0.5s;
}

.news-card:hover img {
    transform: scale(1.05);
    filter: brightness(1.05);
}

/* 视频卡片效果 */
.video-card {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.6));
    opacity: 0;
    transition: opacity 0.4s;
    z-index: 1;
    pointer-events: none;
}

.video-card:hover::before {
    opacity: 1;
}

.video-card:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.25);
}

.video-card .play-button {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-card:hover .play-button {
    transform: scale(1.2);
}

/* 按钮悬停效果 */
.btn-elegant {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-elegant::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
    z-index: -1;
}

.btn-elegant:hover::before {
    left: 100%;
}

/* 侧边栏动画 */
.sidebar-item {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-item:hover {
    transform: translateX(5px);
    background-color: rgba(0, 0, 0, 0.02);
}

/* FAQ手风琴效果 */
.faq-item {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), padding 0.5s;
}

.faq-answer.active {
    max-height: 1000px;
}

/* 表单输入效果 */
.form-input {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-input:focus {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 加载动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* 渐变文字效果 */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 分隔线动画 */
.divider-animated {
    position: relative;
    overflow: hidden;
}

.divider-animated::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #333, transparent);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.divider-animated.visible::after {
    transform: translateX(-50%) scaleX(1);
}

/* 数字计数动画 */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.count-up {
    animation: countUp 0.8s ease-out;
}

/* 波纹效果 */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

/* 标题下划线动画 */
.title-underline {
    position: relative;
    display: inline-block;
}

.title-underline::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.title-underline.visible::after {
    width: 100%;
}

/* 3D翻转卡片 */
.flip-card {
    perspective: 1000px;
}

.flip-card-inner {
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

/* 悬浮阴影效果 */
.hover-shadow {
    transition: box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-shadow:hover {
    box-shadow: 0 20px 50px -12px rgba(0, 0, 0, 0.25);
}

/* 延迟动画 */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }