/* 全局样式 */
body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #0D1B2A, #48536E);
    color: #FFFFFF;
    line-height: 1.6;
    overflow-x: hidden;
}
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 20px;
}
header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(45deg, #0D1B2A, #2C3E50);
    position: relative;
}
header h1 {
    font-size: 3em;
    font-weight: 900;
    margin: 0;
    background: linear-gradient(90deg, #00FF7F, #FF007F);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
header p {
    font-size: 1.2em;
    margin: 10px 0 0;
}
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 255, 127, 0.3);
}
.card img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
}
.card h3 {
    font-size: 1.5em;
    margin: 0 0 10px;
}
.card p {
    font-size: 1em;
    margin: 0;
}
code {
    background: #1E2A38;
    color: #00FF7F;
    padding: 5px 10px;
    border-radius: 5px;
    display: block;
    overflow-x: auto;
    white-space: pre-wrap;
    font-family: 'Roboto Mono', monospace;
}
pre {
    background: #1E2A38;
    padding: 15px;
    border-radius: 10px;
    margin: 15px 0;
}
article {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
}
article h2, article h3 {
    color: #00FF7F;
}
article h2 {
    font-size: 2em;
}
article h3 {
    font-size: 1.5em;
}
article p {
    font-size: 1em;
    margin: 10px 0;
}
.parallax {
    height: 300px;
    background-image: url('https://images.gptkong.com/demo/sample1.png');
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    margin: 40px 0;
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }
    .grid-container {
        grid-template-columns: 1fr;
    }
    .parallax {
        height: 200px;
    }
}