/* 全局样式 */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to bottom, #121212, #1E1E1E);
    color: #ffffff;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    margin-top: 0;
    color: #6A5ACD;
}

a {
    text-decoration: none;
    color: #00BFFF;
    transition: color 0.3s ease;
}

a:hover {
    color: #FF69B4;
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
    display: grid;
    gap: 20px;
}

.header {
    position: sticky;
    top: 0;
    background: linear-gradient(to right, #1E1E1E, #2F2F2F);
    padding: 10px 20px;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header .logo {
    font-size: 24px;
    font-weight: bold;
    color: #FFFFFF;
}

.header nav a {
    margin: 0 10px;
    font-size: 16px;
    color: #BBB;
}

.header nav a:hover {
    color: #FF69B4;
}

.hero {
    background: linear-gradient(135deg, #121212, #2F2F2F);
    padding: 50px 20px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.hero h1 {
    font-size: 36px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    color: #CCC;
}

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

.feature-card {
    background: linear-gradient(to bottom, #1E1E1E, #2F2F2F);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.feature-card img {
    width: 100px;
    height: 100px;
    margin-bottom: 10px;
    border-radius: 50%;
    object-fit: cover;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    color: #AAA;
}

.content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

.main-content {
    background: linear-gradient(to bottom, #1E1E1E, #2F2F2F);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.sidebar {
    background: linear-gradient(to bottom, #1E1E1E, #2F2F2F);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar ul li {
    margin-bottom: 10px;
}

.sidebar ul li a {
    color: #BBB;
}

.sidebar ul li a:hover {
    color: #FF69B4;
}

.code-block {
    background: #2F2F2F;
    color: #00BFFF;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

table th, table td {
    padding: 10px;
    border: 1px solid #444;
    text-align: left;
}

table th {
    background: #333;
    color: #FFF;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

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

    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .feature-card img {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 480px) {
    .header nav {
        display: none;
    }

    .hero h1 {
        font-size: 24px;
    }

    .hero p {
        font-size: 14px;
    }

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