/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', Arial, sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #000000, #1e1e1e, #00aaff);
    color: #ffffff;
    overflow-x: hidden;
    padding: 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: bold;
    color: #00aaff;
    margin-bottom: 15px;
}

p {
    font-size: 1rem;
    color: #f5f5f5;
    margin-bottom: 15px;
}

ul {
    list-style: none;
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
    position: relative;
}

li::before {
    content: '•';
    color: #00aaff;
    position: absolute;
    left: -15px;
    top: 50%;
    transform: translateY(-50%);
}

a {
    color: #00aaff;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0077cc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.header {
    grid-column: 1 / -1;
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, #00aaff, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.image-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.image-container img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    object-fit: cover;
}

.code-block {
    background: #000000;
    color: #00aaff;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.button {
    display: inline-block;
    background-color: #00aaff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-align: center;
    margin-top: 20px;
}

.button:hover {
    background-color: #0077cc;
}

.grid-item {
    background: linear-gradient(135deg, #1e1e1e, #333333);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

.grid-item:hover {
    transform: scale(1.05);
}

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

    .container {
        grid-template-columns: 1fr;
    }
}

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

    p, li {
        font-size: 0.9rem;
    }
}