body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to bottom, #f0f2f5, #e1e5ea);
    color: #333;
    line-height: 1.6;
}

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

/* Header Styles */
header {
    background: linear-gradient(to right, #4c669f, #3b5998);
    color: white;
    padding: 20px 0;
    margin-bottom: 30px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

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

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

nav ul li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Hero Section Styles */
.hero {
    background: linear-gradient(135deg, #6a82fb, #fc5c7d);
    color: white;
    padding: 100px 0;
    text-align: center;
    margin-bottom: 50px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-button {
    display: inline-block;
    padding: 15px 30px;
    background-color: #ff6f61;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.3s ease;
    box-shadow: 0 3px 5px rgba(0, 0, 0, 0.3);
}

.hero-button:hover {
    background-color: #e0524a;
    transform: scale(1.05);
}

/* Features Section Styles */
.features {
    padding: 50px 0;
    background-color: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 50px;
}

.features h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #555;
    font-size: 2.5em;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 20px;
}

.feature-card {
    background-color: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

.feature-card img {
    max-width: 100%;
    border-radius: 8px;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #444;
}

.feature-card p {
    color: #666;
}

/* Article Section Styles */
.article-section {
    padding: 50px 0;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 50px;
}

.article-section h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #555;
    font-size: 2.5em;
}

.article-content {
    padding: 0 20px;
    max-width: 900px;
    margin: 0 auto;
}

.article-content article h2 {
    font-size: 2em;
    color: #333;
    margin-top: 30px;
    margin-bottom: 20px;
    text-align: left;
}

.article-content article h3 {
    font-size: 1.6em;
    color: #444;
    margin-top: 25px;
    margin-bottom: 15px;
    text-align: left;
}

.article-content article p {
    color: #555;
    margin-bottom: 20px;
    line-height: 1.7;
    text-align: left;
    word-wrap: break-word;
}

.article-content article ul, .article-content article ol {
    margin-bottom: 20px;
    padding-left: 30px;
}

.article-content article li {
    margin-bottom: 10px;
    color: #555;
}

.article-content article pre {
    background-color: #f0f0f0;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.9em;
    line-height: 1.4;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.article-content article table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.article-content article th, .article-content article td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.article-content article th {
    background-color: #f2f2f2;
    font-weight: bold;
}

/* Example Data Styles */
.example-data {
    padding: 50px 0;
    background: linear-gradient(to right, #e0c3fc, #8ec5fc);
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 50px;
    color: #333;
}

.example-data h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #fff;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 20px;
}

.data-card {
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.data-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

.data-card h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #333;
}

.data-card p {
    color: #555;
    margin-bottom: 10px;
}

.data-card ul {
    padding-left: 20px;
}

.data-card li {
    color: #555;
    margin-bottom: 5px;
}

/* Footer Styles */
footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 20px 0;
    font-size: 0.9em;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 15px;
    }

    .hero {
        padding: 80px 0;
    }

    .hero h1 {
        font-size: 2.5em;
    }

    .hero p {
        font-size: 1.1em;
    }

    .features h2, .article-section h2, .example-data h2 {
        font-size: 2.2em;
    }
}

@media (max-width: 768px) {
    header {
        padding: 15px 0;
    }

    .header-content {
        flex-direction: column;
        align-items: center;
    }

    nav ul {
        margin-top: 15px;
        flex-direction: column;
        text-align: center;
    }

    nav ul li {
        margin-left: 0;
        margin-top: 10px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 2em;
    }

    .hero p {
        font-size: 1em;
    }

    .features h2, .article-section h2, .example-data h2 {
        font-size: 2em;
    }

    .feature-grid, .data-grid {
        grid-template-columns: 1fr;
    }

    .feature-card, .data-card {
        padding: 20px;
    }

    .article-content {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 40px 0;
    }

    .hero h1 {
        font-size: 1.7em;
    }

    .hero p {
        font-size: 0.9em;
    }

    .hero-button {
        padding: 12px 25px;
        font-size: 0.9em;
    }

    .features h2, .article-section h2, .example-data h2 {
        font-size: 1.8em;
    }
}

@media (max-width: 320px) {
    .hero h1 {
        font-size: 1.5em;
    }
    .features h2, .article-section h2, .example-data h2 {
        font-size: 1.6em;
    }
}