/**
 * ============================================
 * 动画效果库 - Animation Library
 * 赞声数码企业网站
  * Copyright (c) 杭州赞声数码有限公司 www.zansongtech.com
 * ============================================
 */

/* ============================================
   1. 淡入动画 - Fade In Animations
   ============================================ */

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 应用类 */
.fade-in {
    animation: fadeIn 0.6s var(--ease-out);
}

.fade-in-up {
    animation: fadeInUp 0.6s var(--ease-out);
}

.fade-in-down {
    animation: fadeInDown 0.6s var(--ease-out);
}

.fade-in-left {
    animation: fadeInLeft 0.6s var(--ease-out);
}

.fade-in-right {
    animation: fadeInRight 0.6s var(--ease-out);
}


/* ============================================
   2. 缩放动画 - Scale Animations
   ============================================ */

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

.scale-in {
    animation: scaleIn 0.4s var(--ease-out);
}

.pulse {
    animation: pulse 2s var(--ease-in-out) infinite;
}


/* ============================================
   3. 滑动动画 - Slide Animations
   ============================================ */

@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.slide-in-up {
    animation: slideInUp 0.5s var(--ease-out);
}

.slide-in-down {
    animation: slideInDown 0.5s var(--ease-out);
}


/* ============================================
   4. 旋转动画 - Rotate Animations
   ============================================ */

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

@keyframes spinSlow {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.spin {
    animation: spin 1s linear infinite;
}

.spin-slow {
    animation: spinSlow 3s linear infinite;
}


/* ============================================
   5. 弹跳动画 - Bounce Animations
   ============================================ */

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

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
    }
}

.bounce {
    animation: bounce 1s ease infinite;
}

.bounce-in {
    animation: bounceIn 0.6s var(--ease-out);
}


/* ============================================
   6. 摇摆动画 - Swing Animations
   ============================================ */

@keyframes swing {
    20% {
        transform: rotate(15deg);
    }
    40% {
        transform: rotate(-10deg);
    }
    60% {
        transform: rotate(5deg);
    }
    80% {
        transform: rotate(-5deg);
    }
    100% {
        transform: rotate(0deg);
    }
}

.swing {
    transform-origin: top center;
    animation: swing 1s ease;
}


/* ============================================
   7. 闪烁动画 - Flash Animations
   ============================================ */

@keyframes flash {
    0%, 50%, 100% {
        opacity: 1;
    }
    25%, 75% {
        opacity: 0;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.flash {
    animation: flash 2s ease infinite;
}

.shimmer {
    background: linear-gradient(
        to right,
        transparent 0%,
        rgba(255, 255, 255, 0.5) 50%,
        transparent 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}


/* ============================================
   8. 渐进延迟 - Stagger Delays
   ============================================ */

.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }
.stagger-item:nth-child(7) { animation-delay: 0.7s; }
.stagger-item:nth-child(8) { animation-delay: 0.8s; }


/* ============================================
   9. 悬浮效果 - Hover Effects
   ============================================ */

/* 平滑上浮 */
.hover-lift {
    transition: transform var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

/* 轻微放大 */
.hover-scale {
    transition: transform var(--transition-base);
}

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

/* 阴影增强 */
.hover-shadow {
    transition: box-shadow var(--transition-base);
}

.hover-shadow:hover {
    box-shadow: var(--shadow-xl);
}

/* 发光效果 */
.hover-glow {
    transition: all var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(212, 165, 116, 0.4);
}

/* 倾斜效果 */
.hover-tilt {
    transition: transform var(--transition-base);
}

.hover-tilt:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(2deg);
}


/* ============================================
   10. 页面加载动画 - Page Load Animations
   ============================================ */

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

.page-load {
    animation: pageLoad 0.8s var(--ease-out);
}

/* 骨架屏动画 */
@keyframes skeleton {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 0px,
        var(--color-gray-100) 40px,
        var(--color-gray-200) 80px
    );
    background-size: 200px 100%;
    animation: skeleton 1.5s ease-in-out infinite;
}


/* ============================================
   11. 滚动触发动画 - Scroll Animations
   ============================================ */

.scroll-fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--ease-out),
                transform 0.6s var(--ease-out);
}

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

.scroll-slide-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s var(--ease-out),
                transform 0.6s var(--ease-out);
}

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

.scroll-slide-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s var(--ease-out),
                transform 0.6s var(--ease-out);
}

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


/* ============================================
   12. 特殊效果 - Special Effects
   ============================================ */

/* 打字机效果 */
@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    50% {
        border-color: transparent;
    }
}

.typewriter {
    overflow: hidden;
    border-right: 2px solid var(--color-primary);
    white-space: nowrap;
    animation: typing 3.5s steps(40, end),
               blink 0.75s step-end infinite;
}

/* 波纹效果 */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    background: rgba(212, 165, 116, 0.5);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
}

.ripple-effect:active::after {
    animation: ripple 0.6s ease-out;
}

/* 渐变背景动画 */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.animated-gradient {
    background: linear-gradient(
        270deg,
        var(--color-primary-300),
        var(--color-primary),
        var(--color-primary-600)
    );
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}


/* ============================================
   13. 性能优化 - Performance Optimizations
   ============================================ */

/* 硬件加速 */
.gpu-accelerate {
    transform: translateZ(0);
    will-change: transform;
}

/* 减少移动端动画 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}


/* ============================================
   14. 延迟控制 - Delay Control
   ============================================ */

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


/* ============================================
   15. 持续时间控制 - Duration Control
   ============================================ */

.duration-fast { animation-duration: 150ms; }
.duration-base { animation-duration: 250ms; }
.duration-slow { animation-duration: 350ms; }
.duration-slower { animation-duration: 500ms; }
.duration-slowest { animation-duration: 1000ms; }