* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0051c3;
    --primary-hover: #003d99;
    --text: #1f2937;
    --text-secondary: #6b7280;
    --border: #e5e7eb;
    --bg: #ffffff;
    --bg-secondary: #f9fafb;
    --code-bg: #f3f4f6;
    --code-text: #1f2937;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 14px;
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--text-secondary);
}

.header {
    margin-bottom: 48px;
}

.header h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.doc-link {
    display: inline-block;
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
}

.doc-link:hover {
    text-decoration: underline;
}

.intro {
    background: var(--bg-secondary);
    border-left: 4px solid var(--primary);
    padding: 24px;
    margin-bottom: 48px;
}

.intro h2 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--text);
    font-weight: 600;
}

.code-block {
    background: var(--code-bg);
    color: var(--code-text);
    padding: 12px 16px;
    border-radius: 6px;
    margin: 16px 0;
    overflow-x: auto;
    border: 1px solid var(--border);
}

.code-block code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 15px;
}

.description {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 16px;
}

.demo-section h2 {
    font-size: 32px;
    margin-bottom: 8px;
    color: var(--text);
    font-weight: 700;
}

.demo-note {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 32px;
    font-family: 'Consolas', 'Monaco', monospace;
}

.param-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.param-item {
    padding: 32px 0;
    border-bottom: 1px solid var(--border);
}

.param-item:last-child {
    border-bottom: none;
}

.param-item h3 {
    font-size: 22px;
    margin-bottom: 8px;
    color: var(--text);
    font-weight: 600;
}

.param-item .desc {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
    font-size: 16px;
}

.example-label {
    font-weight: 500;
    margin: 16px 0 8px 0;
    color: var(--text);
    font-size: 15px;
}

.example-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.example-list li {
    margin: 6px 0;
}

.example-list a {
    color: var(--primary);
    text-decoration: none;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
}

.example-list a:hover {
    text-decoration: underline;
}

.note {
    font-size: 15px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 12px 16px;
    border-radius: 6px;
    border-left: 3px solid #f59e0b;
    margin-top: 12px;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 28px;
    }
    
    .container {
        padding: 24px 16px;
    }
}