/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #032B44, #FF985C);
    color: white;
    line-height: 1.6;
    overflow-x: hidden;
    animation: gradient-shift 15s ease infinite;
}
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.header {
    background: radial-gradient(circle, #032B44, transparent);
    padding: 2em;
    text-align: center;
    width: 100%;
    position: relative;
    z-index: 1;
}
.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png'), url('https://images.gptkong.com/demo/sample2.png');
    background-size: 30%, 40%;
    background-repeat: no-repeat;
    background-position: left bottom, right top;
    opacity: 0.2;
    z-index: -1;
}
.header h1 {
    font-family: 'Roboto Bold', sans-serif;
    font-size: 2.5rem;
    color: #FF985C;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}
.subheader {
    font-size: 1.2rem;
    margin-top: 10px;
    color: #f0f0f0;
}
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
    width: 100%;
}
.grid-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}
.grid-item:hover {
    transform: translateY(-10px);
}
.grid-item img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 10px;
    object-fit: cover;
    aspect-ratio: 1/1;
}
.grid-item h3 {
    font-family: 'Roboto Bold', sans-serif;
    font-size: 1.2rem;
    color: #FF985C;
}
.grid-item p {
    font-size: 0.9rem;
    color: #e0e0e0;
}
@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
    }
    .header h1 {
        font-size: 2rem;
    }
}
pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-size: 0.9rem;
    color: #fff;
}
code {
    color: #FF985C;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
th, td {
    border: 1px solid #FF985C;
    padding: 10px;
    text-align: left;
    color: #FF985C;
}
th {
    background: rgba(255, 255, 255, 0.1);
}
.content {
    opacity: 0;
    animation: fadeIn 2s forwards;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.footer {
    background: linear-gradient(135deg, #FF985C, #032B44);
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}