body, html {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    color: #E0E0E0;
    background: linear-gradient(135deg, #00001F, #1A1A40);
    overflow-x: hidden;
    line-height: 1.6;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 999;
    background: rgba(0, 0, 31, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    color: #6F00FF;
    margin: 0;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

nav ul li a {
    text-decoration: none;
    color: #B388FF;
    font-size: 16px;
    transition: all 0.3s ease;
}

nav ul li a:hover {
    color: #FFFFFF;
    transform: scale(1.1);
}

.section {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover,
                url('https://images.gptkong.com/demo/sample2.png') no-repeat center/cover;
    opacity: 0.2;
    z-index: -1;
}

.about-section {
    background: linear-gradient(135deg, #0D1B2A, #162447);
}

.product-section {
    background: linear-gradient(135deg, #1A1A40, #2C365A);
}

.case-section {
    background: linear-gradient(135deg, #2C365A, #48547A);
}

.content-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(5px);
}

h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 36px;
    color: #B388FF;
    margin-bottom: 20px;
}

p {
    font-size: 18px;
    color: #E0E0E0;
    margin-bottom: 20px;
}

pre {
    background: rgba(0, 0, 31, 0.8);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    color: #B388FF;
    font-size: 14px;
    line-height: 1.5;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(0, 0, 31, 0.8);
    border-radius: 5px;
    overflow: hidden;
}

th, td {
    padding: 10px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #B388FF;
}

th {
    background: rgba(255, 255, 255, 0.05);
}

ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

li {
    margin-bottom: 10px;
    font-size: 18px;
    color: #E0E0E0;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    background: #6F00FF;
    color: #FFFFFF;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.button:hover {
    background: #B388FF;
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .section {
        height: auto;
        padding: 60px 20px;
    }

    header h1 {
        font-size: 20px;
    }

    nav ul {
        flex-direction: column;
        gap: 10px;
    }

    pre {
        font-size: 12px;
    }
}