/* ========================================
   动画样式 (animations.css)
   包含：打字机效果、页面过渡、淡入淡出动画
   ======================================== */

/* 打字机效果 */
.typewriter h1 {
    overflow: hidden;
    border-right: .15em solid var(--primary);
    white-space: nowrap;
    margin: 0 auto;
    letter-spacing: .15em;
    animation: 
        typing 3.5s steps(40, end),
        blink-caret .75s step-end infinite;
}

/* 打字动画关键帧 */
@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

/* 光标闪烁动画关键帧 */
@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: var(--primary) }
}

/* 页面过渡效果 */
.page-transition {
    animation: fadeIn 0.3s ease-in-out;
}

.page-transition.leaving {
    animation: fadeOut 0.3s ease-in-out;
}

/* 淡入动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 淡出动画 */
@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* 滑入动画 - 从左侧 */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 滑入动画 - 从右侧 */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 缩放动画 */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

/* 动画辅助类 */
.animate-fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

.animate-slide-left {
    animation: slideInLeft 0.3s ease-in-out;
}

.animate-slide-right {
    animation: slideInRight 0.3s ease-in-out;
}

.animate-scale {
    animation: scaleIn 0.3s ease-in-out;
}

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

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

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

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

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

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}