body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.7;
    color: #333;
    background: linear-gradient(135deg, #e0f7fa, #c2e5ed);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    width: 95%;
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #eee;
}

header h1 {
    color: #37474f;
    font-weight: bold;
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 3px rgba(204, 204, 204, 0.5);
}

header p {
    color: #555;
    font-size: 1.1em;
    margin-bottom: 20px;
}

.feature-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.feature-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    padding: 25px;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.feature-card img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 15px;
    display: block;
}

.feature-card h3 {
    color: #424242;
    margin-top: 0;
    margin-bottom: 10px;
    font-weight: 600;
    font-size: 1.4em;
}

.feature-card p {
    color: #616161;
    font-size: 1em;
    line-height: 1.6;
}

.feature-card a {
    display: inline-block;
    padding: 10px 20px;
    background-color: #29b6f6;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
    margin-top: 15px;
    text-align: center;
}

.feature-card a:hover {
    background-color: #03a9f4;
}

.data-display {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 3px 9px rgba(0, 0, 0, 0.05);
    margin-bottom: 40px;
}

.data-display h2 {
    color: #333;
    font-size: 2em;
    margin-top: 0;
    margin-bottom: 20px;
    border-bottom: 1px dashed #ccc;
    padding-bottom: 10px;
}

.data-list {
    list-style: none;
    padding: 0;
}

.data-item {
    margin-bottom: 20px;
    padding: 20px;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.04);
    border-left: 5px solid #29b6f6;
}

.data-item h4 {
    color: #37474f;
    font-size: 1.3em;
    margin-top: 0;
    margin-bottom: 10px;
}

.data-item p {
    color: #555;
    font-size: 1em;
    margin-bottom: 8px;
}

.article-section {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 3px 9px rgba(0, 0, 0, 0.05);
    margin-bottom: 40px;
}

.article-section h2 {
    color: #333;
    font-size: 2em;
    margin-top: 0;
    margin-bottom: 20px;
    border-bottom: 1px dashed #ccc;
    padding-bottom: 10px;
}

.article-section article {
    line-height: 1.8;
    color: #444;
    font-size: 1.1em;
}

.article-section article h3 {
    color: #333;
    font-size: 1.6em;
    margin-top: 30px;
    margin-bottom: 15px;
}

.article-section article h4 {
    color: #333;
    font-size: 1.4em;
    margin-top: 25px;
    margin-bottom: 10px;
}

.article-section article p {
    margin-bottom: 15px;
}

.article-section article pre {
    background-color: #f0f0f0;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.9em;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
}

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

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

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

footer {
    text-align: center;
    padding: 20px 0;
    color: #777;
    font-size: 0.9em;
}

@media (max-width: 768px) {
    .container {
        width: 98%;
        padding: 15px;
    }
    header h1 {
        font-size: 2em;
    }
    header p {
        font-size: 1em;
    }
    .feature-section {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .feature-card {
        padding: 20px;
    }
    .feature-card h3 {
        font-size: 1.3em;
    }
    .data-display, .article-section {
        padding: 20px;
    }
    .data-display h2, .article-section h2 {
        font-size: 1.8em;
    }
    .article-section article pre {
        white-space: pre-wrap;
        word-wrap: break-word;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8em;
    }
    header p {
        font-size: 0.95em;
    }
    .feature-card h3 {
        font-size: 1.2em;
    }
    .data-display h2, .article-section h2 {
        font-size: 1.6em;
    }
}

@media (max-width: 320px) {
    header h1 {
        font-size: 1.6em;
    }
    .feature-card h3 {
        font-size: 1.1em;
    }
    .data-display h2, .article-section h2 {
        font-size: 1.4em;
    }
    .container {
        width: 100%;
        border-radius: 0;
        box-shadow: none;
    }
}

.highlight-code {
    color: #007bff;
    font-weight: bold;
}

.button-primary {
    display: inline-block;
    padding: 12px 24px;
    background-color: #ff9800; /* 亮橙色 */
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: background-color 0.3s ease;
    font-weight: 500;
    border: none;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.button-primary:hover {
    background-color: #f57c00;
}

.section-title {
    color: #37474f;
    font-size: 2.2em;
    font-weight: bold;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: #29b6f6;
    border-radius: 2px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.info-card {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.09);
    padding: 30px;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}

.info-card:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.info-card h4 {
    color: #424242;
    font-size: 1.6em;
    margin-top: 0;
    margin-bottom: 15px;
    font-weight: 600;
}

.info-card p {
    color: #616161;
    font-size: 1.05em;
    line-height: 1.7;
    margin-bottom: 20px;
}

.info-card .meta-info {
    font-size: 0.9em;
    color: #757575;
    margin-bottom: 8px;
}

.info-card .action-area {
    margin-top: 25px;
    text-align: right;
}