/* 动画效果样式文件 */

/* 基础动画关键帧 */
@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);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-10deg) scale(0.9);
    }
    to {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
}

/* 水墨扩散效果 */
@keyframes inkSpread {
    0% {
        opacity: 0;
        transform: scale(0.1);
        filter: blur(10px);
    }
    50% {
        opacity: 0.8;
        filter: blur(5px);
    }
    100% {
        opacity: 1;
        transform: scale(1);
        filter: blur(0);
    }
}

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

@keyframes floatSlow {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    33% {
        transform: translateY(-15px) rotate(1deg);
    }
    66% {
        transform: translateY(-5px) rotate(-1deg);
    }
}

/* 脉冲效果 */
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

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

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

@keyframes blink {
    0%, 50% {
        border-color: transparent;
    }
    51%, 100% {
        border-color: var(--primary-black);
    }
}

/* 动画类 */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.fade-in-down {
    animation: fadeInDown 0.8s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.8s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.8s ease-out;
}

.slide-in-up {
    animation: slideInUp 0.8s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

.scale-in {
    animation: scaleIn 0.6s ease-out;
}

.rotate-in {
    animation: rotateIn 0.8s ease-out;
}

.ink-spread {
    animation: inkSpread 1.2s ease-out;
}

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

.float-slow {
    animation: floatSlow 6s ease-in-out infinite;
}

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

/* 延迟动画 */
.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

.delay-600 {
    animation-delay: 0.6s;
}

.delay-700 {
    animation-delay: 0.7s;
}

.delay-800 {
    animation-delay: 0.8s;
}

/* 悬停动画 */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-rotate {
    transition: transform 0.3s ease;
}

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

/* 水墨画特效 */
.ink-brush {
    position: relative;
    overflow: hidden;
}

.ink-brush::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 0, 0, 0.1),
        transparent
    );
    transition: left 0.8s ease;
}

.ink-brush:hover::before {
    left: 100%;
}

/* 毛笔字动画 */
.brush-stroke {
    position: relative;
    display: inline-block;
}

.brush-stroke::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(
        90deg,
        var(--primary-black),
        var(--dark-gray),
        var(--primary-black)
    );
    transition: width 0.8s ease;
}

.brush-stroke:hover::after,
.brush-stroke.active::after {
    width: 100%;
}

/* 纸张翻页效果 */
.page-turn {
    transform-style: preserve-3d;
    transition: transform 0.6s ease;
}

.page-turn:hover {
    transform: rotateY(10deg);
}

/* 水滴效果 */
.water-drop {
    position: relative;
    overflow: hidden;
}

.water-drop::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(
        circle,
        rgba(0, 0, 0, 0.1) 0%,
        transparent 70%
    );
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
}

.water-drop:hover::before {
    width: 200px;
    height: 200px;
}

/* 滚动触发动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.scroll-animate.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* 加载动画 */
.loading-dots {
    display: inline-block;
}

.loading-dots::after {
    content: '.';
    animation: dots 1.5s steps(5, end) infinite;
}

@keyframes dots {
    0%, 20% {
        color: rgba(0, 0, 0, 0);
        text-shadow: 0.25em 0 0 rgba(0, 0, 0, 0),
                     0.5em 0 0 rgba(0, 0, 0, 0);
    }
    40% {
        color: var(--primary-black);
        text-shadow: 0.25em 0 0 rgba(0, 0, 0, 0),
                     0.5em 0 0 rgba(0, 0, 0, 0);
    }
    60% {
        text-shadow: 0.25em 0 0 var(--primary-black),
                     0.5em 0 0 rgba(0, 0, 0, 0);
    }
    80%, 100% {
        text-shadow: 0.25em 0 0 var(--primary-black),
                     0.5em 0 0 var(--primary-black);
    }
}

/* 响应式动画控制 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 768px) {
    .fade-in-up,
    .fade-in-left,
    .fade-in-right,
    .slide-in-up,
    .slide-in-left,
    .slide-in-right {
        animation-duration: 0.6s;
    }
    
    .float,
    .float-slow {
        animation-duration: 2s;
    }
}