/* 全局样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0E1634, #000);
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: 'Fira Sans', sans-serif;
    font-weight: bold;
}

a {
    color: #FF9F0A;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

/* 导航栏 */
.navbar {
    background: linear-gradient(90deg, #0E1634, #000);
    padding: 15px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.navbar .logo {
    font-size: 24px;
    font-weight: bold;
    color: #FF9F0A;
}

.navbar ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

.navbar ul li a {
    color: #fff;
    transition: color 0.3s ease;
}

.navbar ul li a:hover {
    color: #FF9F0A;
}

/* 核心展示区 */
.hero {
    background: radial-gradient(circle, rgb(255, 87, 34), transparent);
    padding: 50px 20px;
    text-align: center;
    color: #fff;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.card {
    background: linear-gradient(135deg, #1a1a1a, #000);
    border: 1px solid #333;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
}

.card img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
}

.card h3 {
    color: #FF9F0A;
    margin-bottom: 10px;
}

.card p {
    color: #ccc;
}

/* 动画效果 */
@keyframes aurora-move {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(270deg, #0E1634, #000, #0E1634);
    background-size: 300% 300%;
    animation: aurora-move 15s linear infinite;
    z-index: -1;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

table th, table td {
    border: 1px solid #333;
    padding: 10px;
    text-align: center;
    color: #ccc;
}

table th {
    background: #1a1a1a;
    color: #FF9F0A;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }

    .grid-container {
        grid-template-columns: 1fr;
    }

    pre code {
        font-size: 14px;
        white-space: pre-wrap;
    }
}

/* 底部信息 */
.footer {
    background: linear-gradient(135deg, #000, #0E1634);
    padding: 20px;
    text-align: center;
    color: #ccc;
}

.footer p {
    margin: 0;
}