/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #0A1F44, #8B5CF6);
    color: #FFFFFF;
    line-height: 1.6;
    overflow-x: hidden;
    animation: fadeIn 2s ease-in-out;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
h1, h2, h3 {
    font-family: 'Poppins', sans-serif;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}
p {
    font-family: 'Roboto Mono', monospace;
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}
code {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 5px;
    font-family: 'Roboto Mono', monospace;
    color: #8B5CF6;
}
pre {
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 10px;
    overflow-x: auto;
}
button {
    background-color: #10B981;
    color: #FFFFFF;
    border: none;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
button:hover {
    background-color: #8B5CF6;
    transform: scale(1.1);
}
.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}
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/cover, linear-gradient(135deg, #0A1F44, #10B981);
    color: #FFFFFF;
}
header h1 {
    font-size: 3rem;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}
section {
    padding: 4rem 2rem;
    position: relative;
}
section:nth-child(even) {
    background: linear-gradient(135deg, #0A1F44, #10B981);
}
section:nth-child(odd) {
    background: linear-gradient(135deg, #8B5CF6, #0A1F44);
}
img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}
th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
th {
    background: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
    font-weight: bold;
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    section {
        padding: 2rem 1rem;
    }
    table {
        font-size: 0.9rem;
    }
}