/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.6;
    background-color: #F0F9FF;
    color: #333333;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #E0F2FE;
}

::-webkit-scrollbar-thumb {
    background: #4CAF50;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2E7D32;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* 延迟动画 */
.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

/* 卡片悬停效果 */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(76, 175, 80, 0.2);
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
    color: white;
    font-weight: bold;
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(76, 175, 80, 0.3);
}

.btn-outline {
    border: 2px solid white;
    color: white;
    font-weight: bold;
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: white;
    color: #4CAF50;
    transform: translateY(-2px);
}

/* 响应式调整 */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}