/* 全局样式设置 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #0A192F, #1E2D48);
    color: #F4F4F9;
    line-height: 1.6;
}
h1, h2, h3 {
    font-family: 'Poppins', sans-serif;
    font-weight: bold;
    text-align: center;
    margin-top: 2rem;
}
a {
    color: #FF6B35;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
/* 卡片布局与样式 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 30px;
}
.card {
    background: #F4F4F9;
    color: #0A192F;
    border-radius: 12px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    padding: 20px;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}
.card img {
    width: 80px;
    height: 80px;
    margin-bottom: 15px;
}
.card h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}
.card p {
    font-size: 0.9rem;
    margin-bottom: 15px;
}
.card .btn {
    background: #FF6B35;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    transition: background 0.3s ease;
}
.card .btn:hover {
    background: #e05c27;
}
/* 文章样式 */
.article-container {
    margin-top: 50px;
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.article-container h2 {
    color: #FF6B35;
    margin-bottom: 20px;
}
.article-container pre {
    background: #1E2D48;
    color: #F4F4F9;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}
/* 响应式设计 */
@media (max-width: 768px) {
    .card-grid {
        grid-template-columns: 1fr;
    }
    .article-container {
        padding: 20px;
    }
}
/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in {
    animation: fadeIn 0.8s ease-in-out;
}