/* =========================================
   TP官方下载网站 - 动画效果
   ========================================= */

/* 1. 基础动画定义 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

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

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

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

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

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

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

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

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

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

/* 2. 动画类 */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

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

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

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

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

.slide-in-up {
    animation: slideInUp 0.6s ease-out;
}

.slide-in-down {
    animation: slideInDown 0.6s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

.zoom-in {
    animation: zoomIn 0.6s ease-out;
}

.zoom-out {
    animation: zoomOut 0.6s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

.bounce {
    animation: bounce 2s infinite;
}

.shake {
    animation: shake 0.5s ease-in-out;
}

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

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

.gradient-shift {
    animation: gradientShift 5s ease infinite;
    background-size: 200% 200%;
}

/* 3. 页面加载动画 */
.page-load-animation {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.stagger-animation > * {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.stagger-animation > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-animation > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-animation > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-animation > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-animation > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-animation > *:nth-child(6) { animation-delay: 0.6s; }

/* 4. 组件动画 */
/* 4.1 教程步骤动画 */
.tutorial-step {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s, transform 0.5s;
}

.tutorial-step.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 4.2 卡片悬停动画 */
.card-hover-animation {
    transition: all 0.3s ease;
}

.card-hover-animation:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* 4.3 按钮动画 */
.btn-animated {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-animated::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.btn-animated:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    100% {
        transform: scale(20, 20);
        opacity: 0;
    }
}

/* 4.4 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(58, 134, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
}

.loading-dots {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 20px;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    margin: 0 4px;
    background-color: var(--primary);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

.skeleton-loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* 4.5 进度条动画 */
.progress-fill-animated {
    transition: width 0.6s ease;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    animation: gradientShift 2s ease infinite;
}

/* 4.6 通知动画 */
.notification {
    animation: slideInDown 0.5s ease-out, slideInUp 0.5s ease-out 4.5s forwards;
}

/* 4.7 工具提示动画 */
.tooltip {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s, transform 0.3s;
}

.tooltip.show {
    opacity: 1;
    transform: translateY(0);
}

/* 5. 交互反馈动画 */
/* 5.1 点击反馈 */
.click-feedback {
    animation: pulse 0.3s ease;
}

/* 5.2 成功反馈 */
.success-feedback {
    animation: bounce 0.5s ease;
}

/* 5.3 错误反馈 */
.error-feedback {
    animation: shake 0.5s ease-in-out;
}

/* 5.4 复制成功反馈 */
.copy-success {
    animation: zoomIn 0.3s ease-out;
}

/* 6. 视差滚动效果 */
.parallax-element {
    will-change: transform;
    transition: transform 0.3s ease-out;
}

/* 7. 滚动显示动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s, transform 0.6s;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* 8. 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 0.3s, transform 0.3s;
}

.page-transition-exit {
    opacity: 1;
    transform: translateY(0);
}

.page-transition-exit-active {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s, transform 0.3s;
}

/* 9. 特殊效果 */
/* 9.1 打字机效果 */
.typewriter {
    overflow: hidden;
    border-right: .15em solid var(--primary);
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink-caret .75s step-end infinite;
}

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

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: var(--primary) }
}

/* 9.2 漂浮粒子 */
.particle {
    position: absolute;
    background: rgba(58, 134, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

/* 9.3 闪光效果 */
.shine {
    position: relative;
    overflow: hidden;
}

.shine::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: rotate(30deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) rotate(30deg); }
    100% { transform: translateX(100%) rotate(30deg); }
}

/* 10. 性能优化 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .loading-spinner,
    .loading-dots {
        animation: none !important;
    }
}

/* 11. 浏览器兼容性 */
@supports not (animation: fadeIn 0.6s) {
    .fade-in,
    .fade-in-up,
    .fade-in-down,
    .fade-in-left,
    .fade-in-right {
        opacity: 1;
        transform: none;
    }
}

/* 12. 调试模式 */
.debug-animation {
    outline: 2px solid red;
    animation: pulse 1s infinite;
}

/* 13. 主题切换动画 */
.theme-transition * {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}