/* 基础样式设置 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    color: #ffffff;
    background: linear-gradient(135deg, #0A2463, #1F1F1F);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: 'Fira Sans', sans-serif;
    font-weight: bold;
}

h1 {
    font-size: 2.5rem;
    text-align: center;
    padding: 20px 0;
    background: linear-gradient(to right, #FF7E00, #32CD32);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.card {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    margin-bottom: 20px;
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

code {
    display: block;
    background: #1F1F1F;
    color: #FF7E00;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

pre {
    margin: 10px 0;
}

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

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

table th {
    background-color: #FF7E00;
    color: #0A2463;
}

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

    .card {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }

    .container {
        padding: 10px;
    }
}

.button {
    background-color: #FF7E00;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
    border-radius: 5px;
    margin-top: 20px;
}

.button:hover {
    background-color: #FF9D3B;
    transform: scale(1.05);
}

.particle-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background-image: url('https://images.gptkong.com/demo/sample1.png');
    animation: flow 10s infinite linear;
    z-index: -1;
}

@keyframes flow {
    0% { background-position: 0 0; }
    100% { background-position: -200px 0; }
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 10px 0;
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    animation: fadeIn 1.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}