/* 动画效果 */

/* 淡入 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-duration-default) var(--transition-timing-function) forwards;
}

/* 从下方淡入 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-duration-default) var(--transition-timing-function) forwards;
}

/* 从左侧淡入 */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-left {
    animation: fadeInLeft var(--transition-duration-default) var(--transition-timing-function) forwards;
}

/* 从右侧淡入 */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-right {
    animation: fadeInRight var(--transition-duration-default) var(--transition-timing-function) forwards;
}

/* 淡出 */
@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

.animate-fade-out {
    animation: fadeOut var(--transition-duration-default) var(--transition-timing-function) forwards;
}

/* 缩放 */
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-zoom-in {
    animation: zoomIn var(--transition-duration-default) var(--transition-timing-function) forwards;
}

@keyframes zoomOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.95);
    }
}

.animate-zoom-out {
    animation: zoomOut var(--transition-duration-default) var(--transition-timing-function) forwards;
}

/* 弹跳 */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

.animate-bounce {
    animation: bounce 2s ease infinite;
}

/* 脉冲 */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

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

/* 旋转 */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.animate-spin {
    animation: spin 1.5s linear infinite;
}

/* 摇晃 */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

.animate-shake {
    animation: shake 0.8s cubic-bezier(.36,.07,.19,.97) both;
}

/* 闪烁 */
@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

.animate-blink {
    animation: blink 1.5s ease-in-out infinite;
}

/* 浮动效果 */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* 延迟类 */
.delay-100 {
    animation-delay: 100ms;
}

.delay-200 {
    animation-delay: 200ms;
}

.delay-300 {
    animation-delay: 300ms;
}

.delay-400 {
    animation-delay: 400ms;
}

.delay-500 {
    animation-delay: 500ms;
}

.delay-700 {
    animation-delay: 700ms;
}

.delay-1000 {
    animation-delay: 1000ms;
}

/* 持续时间类 */
.duration-300 {
    animation-duration: 300ms;
}

.duration-500 {
    animation-duration: 500ms;
}

.duration-700 {
    animation-duration: 700ms;
}

.duration-1000 {
    animation-duration: 1000ms;
}

.duration-2000 {
    animation-duration: 2000ms;
}

/* 动画填充模式 */
.fill-forwards {
    animation-fill-mode: forwards;
}

/* 无限循环 */
.infinite {
    animation-iteration-count: infinite;
}

/* 反向动画 */
.reverse {
    animation-direction: reverse;
}

.alternate {
    animation-direction: alternate;
}

/* 暂停动画 */
.paused {
    animation-play-state: paused;
}

/* 预设序列动画 - 使多个元素按顺序动画 */
.stagger-item:nth-child(1) { animation-delay: 100ms; }
.stagger-item:nth-child(2) { animation-delay: 200ms; }
.stagger-item:nth-child(3) { animation-delay: 300ms; }
.stagger-item:nth-child(4) { animation-delay: 400ms; }
.stagger-item:nth-child(5) { animation-delay: 500ms; }
.stagger-item:nth-child(6) { animation-delay: 600ms; }
.stagger-item:nth-child(7) { animation-delay: 700ms; }
.stagger-item:nth-child(8) { animation-delay: 800ms; }
.stagger-item:nth-child(9) { animation-delay: 900ms; }
.stagger-item:nth-child(10) { animation-delay: 1000ms; }

/* 过渡效果 */
.transition-all {
    transition: all var(--transition-duration-default) var(--transition-timing-function);
}

.transition-transform {
    transition: transform var(--transition-duration-default) var(--transition-timing-function);
}

.transition-opacity {
    transition: opacity var(--transition-duration-default) var(--transition-timing-function);
}

.transition-colors {
    transition: background-color var(--transition-duration-default) var(--transition-timing-function), 
                border-color var(--transition-duration-default) var(--transition-timing-function),
                color var(--transition-duration-default) var(--transition-timing-function);
}

/* 悬停效果 */
.hover-lift {
    transition: transform var(--transition-duration-fast) var(--transition-timing-function),
                box-shadow var(--transition-duration-fast) var(--transition-timing-function);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.hover-scale {
    transition: transform var(--transition-duration-fast) var(--transition-timing-function);
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-bright {
    transition: filter var(--transition-duration-fast) var(--transition-timing-function);
}

.hover-bright:hover {
    filter: brightness(1.1);
}