/* 动画关键帧定义 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@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(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

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

/* 动画类 */
.animate-on-scroll {
    opacity: 0;
}

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

.animate-fade-in {
    animation: fadeIn 0.8s ease forwards;
}

.animate-slide-left {
    animation: slideInLeft 0.8s ease forwards;
}

.animate-slide-right {
    animation: slideInRight 0.8s ease forwards;
}

.animate-scale-in {
    animation: scaleIn 0.8s ease forwards;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

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

/* 延迟动画 */
.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

.delay-4 {
    animation-delay: 0.8s;
}

/* 悬停效果 */
.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, 0.1);
}

.hover-glow {
    transition: all 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(26, 115, 232, 0.3);
}

/* 加载动画 */
.loading-shimmer {
    background: linear-gradient(90deg, #f0f2f5 25%, #e8eaed 50%, #f0f2f5 75%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite linear;
}

/* 页面切换动画 */
.page-transition-enter {
    opacity: 0;
    transform: translateY(20px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s, transform 0.5s;
}

.page-transition-exit {
    opacity: 1;
}

.page-transition-exit-active {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.5s, transform 0.5s;
}

/* 滚动进度条 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #34a853);
    z-index: 9999;
    transition: width 0.1s ease;
}

/* 视差效果 */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* 打字机效果 */
.typewriter {
    overflow: hidden;
    border-right: 3px solid #1a73e8;
    white-space: nowrap;
    margin: 0 auto;
    letter-spacing: 0.15em;
    animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: #1a73e8 }
}

/* 波浪效果 */
.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 50px;
    animation: waveMove 10s linear infinite;
}

@keyframes waveMove {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 渐变文字 */
.gradient-text {
    background: linear-gradient(90deg, #1a73e8, #34a853, #fbbc05, #ea4335);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: gradientShift 3s ease infinite;
}

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

/* 呼吸灯效果 */
.breathing-light {
    position: relative;
}

.breathing-light::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    box-shadow: 0 0 20px rgba(26, 115, 232, 0.5);
    opacity: 0;
    animation: breathe 2s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

/* 3D翻转效果 */
.flip-3d {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.flip-3d-inner {
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.flip-3d:hover .flip-3d-inner {
    transform: rotateY(180deg);
}

.flip-3d-front,
.flip-3d-back {
    backface-visibility: hidden;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.flip-3d-back {
    transform: rotateY(180deg);
}

/* 霓虹效果 */
.neon-text {
    color: #fff;
    text-shadow:
        0 0 5px #fff,
        0 0 10px #fff,
        0 0 20px #1a73e8,
        0 0 30px #1a73e8,
        0 0 40px #1a73e8;
    animation: neonFlicker 1.5s infinite alternate;
}

@keyframes neonFlicker {
    0%, 18%, 22%, 25%, 53%, 57%, 100% {
        text-shadow:
            0 0 5px #fff,
            0 0 10px #fff,
            0 0 20px #1a73e8,
            0 0 30px #1a73e8,
            0 0 40px #1a73e8;
    }
    20%, 24%, 55% {
        text-shadow: none;
    }
}

/* 粒子效果容器 */
.particles-container {
    position: relative;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(26, 115, 232, 0.1);
    pointer-events: none;
}

/* 滚动触发的动画类 */
.animate-on-scroll.visible {
    animation: fadeInUp 0.8s ease forwards;
}

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