body {
    margin: 0;
    font-family: 'Open Sans', sans-serif;
    color: #ffffff;
    background: linear-gradient(135deg, #0A1F44, #8C52FF);
    line-height: 1.6;
    overflow-x: hidden;
}
h1, h2, h3 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    color: #ffffff;
}
p {
    font-size: 16px;
    color: #e0e0e0;
    margin-bottom: 1.5rem;
}
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 20px;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #0A1F44, #333333);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}
header h1 {
    font-size: 2rem;
    color: #1DB954;
}
nav a {
    color: #8C52FF;
    text-decoration: none;
    margin-left: 15px;
    transition: color 0.3s ease;
}
nav a:hover {
    color: #1DB954;
}
.hero-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px 0;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover;
    border-radius: 8px;
    margin-bottom: 30px;
}
.hero-text {
    max-width: 50%;
}
.hero-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}
.hero-text p {
    font-size: 18px;
}
.hero-image img {
    max-width: 40%;
    border-radius: 8px;
}
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
}
.module-card {
    background-color: #ffffff;
    border: 1px solid #333333;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 16px;
    text-align: center;
    color: #0A1F44;
}
.module-card img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}
.module-card h3 {
    font-size: 1.2rem;
    margin-top: 10px;
}
.module-card p {
    font-size: 14px;
    color: #333333;
}
.article-section {
    background-color: rgba(0, 0, 0, 0.7);
    padding: 30px;
    border-radius: 8px;
    margin-top: 30px;
}
.article-section h2 {
    color: #1DB954;
    margin-bottom: 20px;
}
.article-section pre {
    background-color: #333333;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}
.article-section code {
    color: #8C52FF;
}
.hover-button {
    background-color: #8C52FF;
    color: #ffffff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.hover-button:hover {
    background-color: #1DB954;
    transform: scale(1.1);
}
.loading-bar {
    width: 100%;
    height: 4px;
    background-color: #333333;
    position: relative;
    overflow: hidden;
    margin-top: 20px;
}
.loading-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, #8C52FF, transparent);
    animation: loading 2s infinite;
}
@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}
footer {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #333333, #0A1F44);
    color: #e0e0e0;
    margin-top: 30px;
}
@media (max-width: 768px) {
    .hero-section {
        flex-direction: column;
    }
    .hero-text {
        max-width: 100%;
        margin-bottom: 20px;
    }
    .hero-image img {
        max-width: 100%;
    }
    h1, h2, h3 {
        font-size: 1.5rem;
    }
}