/* 通用动画样式 */

/* 基础动画类 - 初始状态 */
.fade-in,
.slide-up,
.slide-left,
.slide-right,
.scale-in,
.stagger-item {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
}

/* 淡入动画 */
.fade-in {
    opacity: 0;
}

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

/* 从下往上滑入 */
.slide-up {
    opacity: 0;
    transform: translateY(50px);
}

.slide-up.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 从左往右滑入 */
.slide-left {
    opacity: 0;
    transform: translateX(-50px);
}

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

/* 从右往左滑入 */
.slide-right {
    opacity: 0;
    transform: translateX(50px);
}

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

/* 缩放动画 */
.scale-in {
    opacity: 0;
    transform: scale(0.9);
}

.scale-in.animated {
    opacity: 1;
    transform: scale(1);
}

/* 交错动画 - 为列表项添加延迟 */
.stagger-item {
    opacity: 0;
    transform: translateY(30px);
}

.stagger-item.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 为不同索引的元素添加延迟 */
.stagger-item:nth-child(1) { transition-delay: 0.1s; }
.stagger-item:nth-child(2) { transition-delay: 0.2s; }
.stagger-item:nth-child(3) { transition-delay: 0.3s; }
.stagger-item:nth-child(4) { transition-delay: 0.4s; }
.stagger-item:nth-child(5) { transition-delay: 0.5s; }
.stagger-item:nth-child(6) { transition-delay: 0.6s; }
.stagger-item:nth-child(7) { transition-delay: 0.7s; }
.stagger-item:nth-child(8) { transition-delay: 0.8s; }

/* 卡片悬停效果增强 */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

/* 图片缩放悬停效果 */
.hover-zoom {
    overflow: hidden;
}

.hover-zoom img {
    transition: transform 0.5s ease;
}

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

/* 渐变背景动画 */
.gradient-animate {
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}

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

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

.underline-animate::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: #e60012;
    transition: width 0.4s ease;
}

.underline-animate.animated::after {
    width: 100%;
}

/* 脉冲动画 */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

/* 浮动动画 */
.float {
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* 旋转进入动画 */
.rotate-in {
    opacity: 0;
    transform: rotate(-10deg) scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.rotate-in.animated {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* 按钮波纹效果 */
.ripple-effect {
    position: relative;
    overflow: hidden;
}

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

/* 边框动画 */
.border-animate {
    position: relative;
    border: 2px solid transparent;
}

.border-animate::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid #e60012;
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.border-animate:hover::before {
    opacity: 1;
}

/* 数字滚动容器 */
.number-counter {
    font-feature-settings: 'tnum';
    font-variant-numeric: tabular-nums;
}

/* 加载骨架屏效果 */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 视差滚动效果 */
.parallax-slow {
    transition: transform 0.5s ease-out;
}

/* 闪烁效果 */
.blink {
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 弹跳效果 */
.bounce-in {
    opacity: 0;
    transform: scale(0.3);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.bounce-in.animated {
    opacity: 1;
    transform: scale(1);
}

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

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

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

/* 响应式调整 */
@media (max-width: 768px) {
    .slide-up {
        transform: translateY(30px);
    }
    
    .slide-left,
    .slide-right {
        transform: translateX(0) translateY(30px);
    }
    
    .slide-left.animated,
    .slide-right.animated {
        transform: translateX(0) translateY(0);
    }
}

/* 减少动画效果（尊重用户偏好） */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}