/* 自定义动画效果 */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

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

/* 渐变背景 */
.gradient-bg {
    background: linear-gradient(135deg, var(--primary) 0%, #6366f1 100%);
    background-size: 200% 200%;
    animation: gradient-animation 15s ease infinite;
}

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

/* 响应式调整 */
@media (max-width: 640px) {
    .card {
        padding: 1rem;
    }
    
    h1 {
        font-size: 1.875rem;
        line-height: 2.25rem;
    }
    
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* 滚动平滑效果 */
html {
    scroll-behavior: smooth;
}

/* 卡片悬停效果增强 */
.card {
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(800px circle at var(--mouse-x) var(--mouse-y), rgba(255, 255, 255, 0.06), transparent 40%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s;
}

.card:hover::before {
    opacity: 1;
}

/* 加载动画 */
@keyframes shimmer {
    0% {
        background-position: -468px 0;
    }
    100% {
        background-position: 468px 0;
    }
}

.loading {
    animation-duration: 1.5s;
    animation-fill-mode: forwards;
    animation-iteration-count: infinite;
    animation-name: shimmer;
    animation-timing-function: linear;
    background: linear-gradient(to right, var(--card) 8%, var(--muted) 18%, var(--card) 33%);
    background-size: 800px 104px;
}