/* ===== 共享样式库 ===== */

/* 动画关键帧 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

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

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

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

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

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

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px currentColor;
    }
    50% {
        box-shadow: 0 0 20px currentColor, 0 0 30px currentColor;
    }
}

@keyframes wave {
    0%, 100% {
        transform: translateX(0) translateY(0);
    }
    25% {
        transform: translateX(5px) translateY(-5px);
    }
    50% {
        transform: translateX(0) translateY(0);
    }
    75% {
        transform: translateX(-5px) translateY(5px);
    }
}

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

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

/* 动画类 */
.animate-fadeInUp {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fadeInDown {
    animation: fadeInDown 0.8s ease-out forwards;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-fadeInRight {
    animation: fadeInRight 0.8s ease-out forwards;
}

.animate-scaleIn {
    animation: scaleIn 0.6s ease-out forwards;
}

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

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

.animate-bounceIn {
    animation: bounceIn 0.8s ease-out forwards;
}

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

/* 滚动动画触发 */
.scroll-animate {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

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

/* 卡片悬停效果 */
.card-hover {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card-hover:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* 按钮悬停效果 */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* 玻璃态效果 */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 渐变文字 */
.gradient-text {
    background: linear-gradient(90deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 分隔线 */
.divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
    margin: 20px auto;
}

.divider-center {
    margin: 20px auto;
}

.divider-left {
    margin: 20px 0;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-sm {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 区块 */
.section {
    padding: 100px 0;
}

.section-sm {
    padding: 60px 0;
}

/* 共享页脚样式 */
.footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    padding: 40px 20px;
    text-align: center;
}

.footer a {
    color: #64ffda;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: #fff;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
}

.footer-links a:hover {
    color: #fff;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #667eea, #764ba2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #5a6fd1, #6a4c93);
}

/* 响应式 */
@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .hide-mobile {
        display: none !important;
    }
}