/* =============================================
   文档页面样式 - 居中博文风格
   ============================================= */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a24;
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    --primary: #818cf8;
    --primary-light: #a5b4fc;
    --accent: #14b8a6;
    --border-color: rgba(255, 255, 255, 0.1);
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'Fira Code', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.8;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent);
}

/* 导航栏 */
.doc-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.nav-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.nav-logo {
    width: 28px;
    height: 28px;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* 主内容区 */
.doc-main {
    flex: 1;
    padding: 3rem 2rem;
}

.doc-article {
    max-width: 750px;
    margin: 0 auto;
}

/* 标题 */
.doc-article h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.doc-article h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.doc-article h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--primary-light);
}

.doc-article h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

/* 段落和列表 */
.doc-article p {
    margin-bottom: 1.25rem;
    color: var(--text-secondary);
}

.doc-article ul,
.doc-article ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.doc-article li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.doc-article strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 引用块 */
.doc-article blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-left: 4px solid var(--primary);
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
    font-style: italic;
}

/* 代码 */
.doc-article code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--bg-card);
    padding: 0.2em 0.5em;
    border-radius: 4px;
    color: var(--accent);
}

.doc-article pre {
    margin: 1.5rem 0;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow-x: auto;
}

.doc-article pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
    font-size: 0.875rem;
    line-height: 1.7;
}

/* highlight.js 背景融合站点主题 */
.doc-article pre code.hljs {
    background: transparent;
}

/* 表格 */
.doc-article table {
    width: 100%;
    margin: 1.5rem 0;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.doc-article th,
.doc-article td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.doc-article th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.doc-article td {
    color: var(--text-secondary);
}

.doc-article tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* 分隔线 */
.doc-article hr {
    margin: 2.5rem 0;
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

/* 页脚 */
.doc-footer {
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.doc-footer p {
    margin: 0.5rem 0;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-inner {
        padding: 0 1rem;
    }

    .nav-links {
        display: none;
    }

    .doc-main {
        padding: 2rem 1rem;
    }

    .doc-article h1 {
        font-size: 2rem;
    }

    .doc-article h2 {
        font-size: 1.5rem;
    }
}