/* 全局样式定义 */
body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to bottom, #0A1F44, #6C5CE7);
    color: #FFFFFF;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Roboto Mono', monospace;
    color: #FF6F61;
    margin-top: 2rem;
}

p, li, td {
    font-size: 1rem;
    color: #BDBDBD;
    margin-bottom: 1rem;
}

a {
    color: #FF6F61;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #6C5CE7;
}

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

header {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center/cover, linear-gradient(#0A1F44, #6C5CE7);
}

header h1 {
    font-size: 3rem;
    letter-spacing: 2px;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
}

.cta-button {
    background-color: #FF6F61;
    color: white;
    padding: 15px 30px;
    border-radius: 5px;
    font-size: 1.2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-top: 20px;
    display: inline-block;
}

.cta-button:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(255, 111, 97, 0.5);
}

section {
    padding: 40px 0;
    background: #0A1F44;
}

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

.card {
    background: #1A2A4F;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

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

pre {
    background: #1A2A4F;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Roboto Mono', monospace;
    color: #FF6F61;
}

code {
    background: #1A2A4F;
    padding: 2px 5px;
    border-radius: 3px;
    color: #FF6F61;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: #1A2A4F;
    border-radius: 5px;
    overflow: hidden;
}

th, td {
    padding: 10px;
    text-align: left;
    border: 1px solid #333;
}

th {
    background: #FF6F61;
    color: white;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .cta-button {
        padding: 10px 20px;
        font-size: 1rem;
    }

    pre {
        font-size: 0.9rem;
    }

    table {
        display: block;
        overflow-x: auto;
    }
}