/* ============================================================
   ops.jiunotes.top — extra.css
   作者：秦一页（frontend-engineer）
   基线：mkdocs-material 9.7.7
   依据：docs/design-spec.md v1.0
   作用：只覆盖 Material 默认样式，不重复核心 CSS；
        所有色值/字号/间距通过 CSS 变量集中定义，禁止散落硬编码。
   ============================================================ */

/* ============ 1. 设计令牌（Design Tokens）============ */
:root {
  /* -- 主色（Primary）—— 深蓝+橙色现代科技风 -- */
  --primary: #1E40AF;
  --primary-light: #DBEAFE;
  --primary-dark: #1E3A8A;
  --primary-hover-bg: rgba(30, 64, 175, 0.08);
  --primary-border-soft: rgba(30, 64, 175, 0.2);
  --primary-bg-soft: rgba(30, 64, 175, 0.06);
  --primary-focus-ring: rgba(30, 64, 175, 0.15);
  --accent: #F97316;
  --accent-light: #FFF7ED;
  --accent-dark: #EA580C;

  /* -- 三大专栏品牌色（Column Identity）-- */
  --col-network: #0284C7;        /* 🌐 网络与 DNS */
  --col-monitor: #B45309;        /* 🛡️ 监控与安全 */
  --col-ha: #047857;             /* 🏠 Home Assistant */
  --col-network-dark: #38BDF8;
  --col-monitor-dark: #F59E0B;
  --col-ha-dark: #10B981;

  /* -- 语义色（Semantic）-- */
  --success: #059669;
  --warning: #D97706;
  --danger: #DC2626;
  --info: #0369A1;
  --success-dark: #10B981;
  --warning-dark: #F59E0B;
  --danger-dark: #EF4444;
  --info-dark: #38BDF8;

  /* -- 中性色阶（Neutral Scale）-- */
  --bg: #FFFFFF;
  --bg-elevated: #F8FAFC;
  --bg-sunken: #F1F5F9;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-tertiary: #64748B;
  --border: #E2E8F0;
  --border-strong: #CBD5E1;

  /* -- 代码块（Code Block）-- */
  --code-bg: #F1F5F9;
  --code-inline-bg: rgba(15, 23, 42, 0.06);
  --code-inline-fg: #B91C1C;
  --code-line-number: #94A3B8;
  --code-highlight-bg: rgba(79, 70, 229, 0.08);

  /* -- 间距刻度（8pt Base）-- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;

  /* -- 布局宽度 -- */
  --content-max-width: 1080px;
  --content-max-width-en: 1120px;
  --nav-width: 280px;
  --toc-width: 220px;
  --header-height: 56px;

  /* -- 字号阶梯 -- */
  --fs-h1: 36px;
  --fs-h2: 28px;
  --fs-h3: 22px;
  --fs-h4: 18px;
  --fs-body: 16px;
  --fs-body-small: 15px;
  --fs-caption: 13px;
  --fs-code: 14px;

  /* -- 行高 -- */
  --lh-h1: 1.25;
  --lh-h2: 1.3;
  --lh-h3: 1.35;
  --lh-h4: 1.4;
  --lh-body-zh: 1.75;
  --lh-body-en: 1.65;
  --lh-code: 1.6;

  /* -- 圆角 -- */
  --radius-2: 2px;
  --radius-3: 3px;
  --radius-6: 6px;
  --radius-full: 999px;

  /* -- 阴影 -- */
  --shadow-card-hover: 0 4px 16px rgba(15, 23, 42, 0.08);

  /* -- 动画 -- */
  --transition-fast: 150ms ease;
  --transition-medium: 200ms ease;
  --transition-slow: 250ms ease-in-out;

  /* -- 覆盖 Material 默认 -- */
  --md-primary-fg-color: var(--primary);
  --md-primary-fg-color--light: var(--primary-light);
  --md-primary-fg-color--dark: var(--primary-dark);
  --md-accent-fg-color: var(--primary);
  --md-typeset-a-color: var(--primary);
  --md-footer-bg-color: var(--bg-sunken);
  --md-footer-bg-color--dark: var(--bg-elevated);
  --md-header-bg-color: var(--bg-sunken);
}

/* ============ 2. 深色模式（Dark Mode）============ */
[data-md-color-scheme="slate"] {
  /* slate 是深色变体，Material 9.7 已提供深色基础，这里覆盖项目语义色 */
  --md-primary-fg-color: #818CF8;
  --md-accent-fg-color: #818CF8;
  --primary: #818CF8;
  --bg: #0B1120;
  --bg-elevated: #0F172A;
  --bg-sunken: #0B1120;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  --border: #1E293B;
  --border-strong: #334155;
  --code-bg: #020617;
  --code-inline-bg: rgba(241, 245, 249, 0.08);
  --code-inline-fg: #FCA5A5;
  --code-line-number: #475569;
  --code-highlight-bg: rgba(129, 140, 248, 0.12);
  --primary-bg-soft: rgba(129, 140, 248, 0.1);
  --col-network: var(--col-network-dark);
  --col-monitor: var(--col-monitor-dark);
  --col-ha: var(--col-ha-dark);
  --success: var(--success-dark);
  --warning: var(--warning-dark);
  --danger: var(--danger-dark);
  --info: var(--info-dark);
}

[data-md-color-scheme="midnight"] {
  --md-primary-fg-color: #818CF8;
  --md-accent-fg-color: #818CF8;
  --primary: #818CF8;
  --bg: #020617;
  --bg-elevated: #0B1120;
  --bg-sunken: #020617;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --border: #1E293B;
  --border-strong: #334155;
}

/* ============ 3. 排版（Typography）============ */
/* 中文与英文页分别设置行高 */
html:not([lang*="zh"]) .md-content {
  line-height: var(--lh-body-en);
}
html[lang*="zh"] .md-content,
:lang(zh) .md-content {
  line-height: var(--lh-body-zh);
}

/* 全局字体族 */
.md-content {
  font-family: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei",
    -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  font-size: var(--fs-body);
  color: var(--text-primary);
}

/* 中文页字体优先 Noto Sans SC */
:lang(zh) .md-content,
html[lang="zh"] .md-content {
  font-family: "Noto Sans SC", "Inter", "PingFang SC", "Microsoft YaHei",
    -apple-system, sans-serif;
}

/* 代码字体 */
.md-content code,
.md-content pre,
.md-typeset code {
  font-family: "JetBrains Mono", "Fira Code", "SF Mono", "Cascadia Code",
    Consolas, monospace;
}

/* 中文字符与英文/数字间加空隙（1/6 em） */
:lang(zh) .md-content,
:lang(zh) .md-content p,
:lang(zh) .md-content li {
  letter-spacing: 0.01em;
}

/* ============ 4. 内容宽度 ============ */
.md-grid {
  max-width: 100%;
}

.md-content {
  max-width: var(--content-max-width);
}

/* 英文页稍宽 */
html[lang="en"] .md-content {
  max-width: var(--content-max-width-en);
}

/* ============ 5. 顶部导航栏 ============ */
.md-header {
  height: var(--header-height);
  padding-top: 0;
  padding-bottom: 0;
  background-color: var(--bg-sunken) !important;
  border-bottom: none !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.md-header__inner {
  height: 100%;
  padding-top: 0;
  padding-bottom: 0;
}

.md-header__topic {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.005em;
}

.md-header__topic .md-header__topic-brand {
  font-weight: 700;
  color: var(--primary);
}

/* 滚动时给 header 加底部边框 */
.md-header--shadow {
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
  border-bottom: 1px solid var(--border) !important;
}

/* ============ 6. 侧边导航 ============ */
.md-nav--primary {
  width: var(--nav-width);
}

.md-nav__item--active > .md-nav__link {
  color: var(--primary);
  background: var(--primary-bg-soft);
  border-left: 3px solid var(--primary);
}

.md-nav__link {
  color: var(--text-primary);
  font-weight: 400;
}

.md-nav__link:hover {
  color: var(--primary);
  background: var(--primary-hover-bg);
}

.md-nav__item .md-nav__link--index {
  font-weight: 600;
}

/* ============ 7. 右侧 TOC ============ */
.md-nav--secondary {
  width: var(--toc-width);
}

.md-nav__title--section {
  font-size: var(--fs-caption);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.md-nav__link--active .md-nav__link {
  color: var(--primary);
  border-left: 2px solid var(--primary);
}

/* ============ 8. 标题阶梯 ============ */
.md-content h1 {
  font-size: var(--fs-h1);
  line-height: var(--lh-h1);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin: 0 0 var(--space-4) 0;
}

.md-content h2 {
  font-size: var(--fs-h2);
  line-height: var(--lh-h2);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: var(--space-12) 0 var(--space-4) 0;
}

.md-content h3 {
  font-size: var(--fs-h3);
  line-height: var(--lh-h3);
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--text-primary);
  margin: var(--space-8) 0 var(--space-3) 0;
}

.md-content h4 {
  font-size: var(--fs-h4);
  line-height: var(--lh-h4);
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--space-6) 0 var(--space-2) 0;
}

/* ============ 9. Answer Block（GEO 关键）============ */
/*
 * 视觉契约（design-spec §4.6）：
 *   - 左边框 4px 主色
 *   - 背景 6% 主色 alpha（浅色）/ 10%（深色）
 *   - 内边距 20×24
 *   - 圆角 6px
 *   - 顶部标签 "ANSWER · 结论"（11px 700，字距 0.08em）
 *   - 正文 16px，行高 1.75，最多 100 字
 *   - 无阴影
 *   - 与 admonition 视觉可区分
 */
.answer-block,
.md-answer-block {
  position: relative;
  border-left: 4px solid var(--primary);
  background: var(--primary-bg-soft);
  border-radius: var(--radius-6);
  padding: 20px 24px;
  margin: var(--space-6) 0 var(--space-8) 0;
  box-shadow: none;
}

.md-answer-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 var(--space-2) 0;
  line-height: 1.4;
}

.md-answer-body {
  font-size: var(--fs-body);
  line-height: var(--lh-body-zh);
  color: var(--text-primary);
}

.md-answer-body p {
  margin: 0;
}

.md-answer-body p + p {
  margin-top: var(--space-2);
}

.md-answer-body code {
  font-size: 0.9em;
  padding: 1px 6px;
  background: var(--code-inline-bg);
  color: var(--code-inline-fg);
  border-radius: var(--radius-3);
}

/* ============ 10. 卡片（Column Cards）============ */
.column-card {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: var(--radius-6);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  transition: box-shadow var(--transition-medium), border-color var(--transition-medium);
}

.column-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-strong);
}

.column-card--network {
  border-left-color: var(--col-network);
}

.column-card--monitor {
  border-left-color: var(--col-monitor);
}

.column-card--ha {
  border-left-color: var(--col-ha);
}

/* 卡片右上角文章计数角标 */
.column-card__count {
  position: absolute;
  top: 16px;
  right: 16px;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  padding: 6px 12px;
  background: rgba(15, 23, 42, 0.06);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-weight: 700;
  line-height: 1;
  transition: transform var(--transition-medium), background var(--transition-medium);
  z-index: 2;
}

.column-card__count-num {
  font-size: 20px;
  color: var(--text-primary);
}

.column-card__count-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.column-card:hover .column-card__count {
  transform: translateY(-2px) scale(1.05);
  background: rgba(15, 23, 42, 0.1);
}

/* 各栏目角标主色 */
.column-card--network .column-card__count-num { color: var(--col-network); }
.column-card--monitor .column-card__count-num { color: var(--col-monitor); }
.column-card--ha .column-card__count-num { color: var(--col-ha); }

/* 深色模式适配 */
[data-md-color-scheme="slate"] .column-card__count,
[data-md-color-scheme="midnight"] .column-card__count {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

[data-md-color-scheme="slate"] .column-card__count-num,
[data-md-color-scheme="midnight"] .column-card__count-num {
  color: var(--text-primary);
}

.column-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  font-size: 32px;
}

.column-card--network .column-card__icon { color: var(--col-network); }
.column-card--monitor .column-card__icon { color: var(--col-monitor); }
.column-card--ha .column-card__icon { color: var(--col-ha); }

.column-card__title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 var(--space-2) 0;
  color: var(--text-primary);
}

.column-card__desc {
  font-size: var(--fs-body-small);
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0 0 var(--space-4) 0;
}

.column-card__cta {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.column-card__cta:hover {
  text-decoration: underline;
}

/* 三卡布局 */
.column-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin: var(--space-8) 0;
}

@media (max-width: 991px) {
  .column-cards-row {
    grid-template-columns: 1fr;
  }
}

/* ============ 11. Tag Chip ============ */
.md-content .tag-chip,
.tag-chip {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 400;
  color: var(--primary);
  background: rgba(79, 70, 229, 0.08);
  border: 1px solid var(--primary-border-soft);
  margin-right: var(--space-2);
  margin-bottom: var(--space-2);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.tag-chip:hover {
  background: rgba(79, 70, 229, 0.15);
  text-decoration: none;
}

/* ============ 12. Admonition 样式微调 ============ */
.md-content .admonition {
  border-radius: var(--radius-6);
  padding: var(--space-4) var(--space-6);
  border-left-width: 4px;
  margin: var(--space-6) 0;
}

.md-content .admonition-title {
  font-size: 14px;
  font-weight: 700;
  padding: 0;
  margin: 0 0 var(--space-2) 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.md-content .admonition-title::before {
  font-size: 16px;
}

.md-content .admonition.note {
  border-left-color: var(--info);
  background: rgba(3, 105, 161, 0.06);
}

.md-content .admonition.tip {
  border-left-color: var(--success);
  background: rgba(5, 150, 105, 0.06);
}

.md-content .admonition.warning {
  border-left-color: var(--warning);
  background: rgba(217, 119, 6, 0.06);
}

.md-content .admonition.danger {
  border-left-color: var(--danger);
  background: rgba(220, 38, 38, 0.06);
}

.md-content .admonition.quote {
  border-left-color: var(--border-strong);
  background: var(--bg-elevated);
}

/* ============ 13. 代码块 ============ */
.md-content pre {
  background: #F1F5F9 !important;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 20px;
  font-size: var(--fs-code);
  line-height: var(--lh-code);
  margin: 20px 0;
  color: #0F172A !important;
}

.md-content pre code {
  font-size: var(--fs-code);
  padding: 0;
  background: transparent;
  color: #0F172A !important;
}

.md-content code {
  font-size: 0.875em;
  padding: 1px 6px;
  background: var(--code-inline-bg);
  color: var(--code-inline-fg);
  border-radius: var(--radius-3);
  font-weight: 400;
}

/* 代码块头部（若有 title / language） */
.highlight {
  border-radius: 12px;
  background: #F1F5F9 !important;
  color: #0F172A !important;
}

/* ============ 14. 表格 ============ */
.md-content table {
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: 14px;
  width: 100%;
}

.md-content table th {
  background: var(--bg-sunken);
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 2px solid var(--border);
}

.md-content table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}

.md-content table tr:last-child td {
  border-bottom: 2px solid var(--border);
}

/* ============ 15. 引用块 ============ */
.md-content blockquote {
  border-left: 4px solid var(--border-strong);
  background: var(--bg-elevated);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  color: var(--text-secondary);
  border-radius: 0 var(--radius-6) var(--radius-6) 0;
}

/* ============ 16. 列表 ============ */
.md-content ul,
.md-content ol {
  padding-left: var(--space-6);
  margin: var(--space-4) 0;
}

.md-content li {
  margin: var(--space-2) 0;
  line-height: var(--lh-body-zh);
}

/* ============ 17. 链接 ============ */
.md-content a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.md-content a:hover {
  border-bottom-color: var(--primary);
}

.md-content a code {
  color: inherit;
}

/* ============ 18. 页脚 ============ */
.md-footer {
  background: var(--bg-sunken);
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0;
}

.md-footer-meta__inner {
  font-size: var(--fs-caption);
  color: var(--text-tertiary);
}

.md-footer-meta__link {
  color: var(--text-tertiary);
  text-decoration: none;
}

.md-footer-meta__link:hover {
  color: var(--primary);
  text-decoration: underline;
}

.md-footer-meta__logo {
  display: none; /* 使用文字版 logo */
}

.md-footer-meta__title {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 14px;
}

/* ============ 19. 面包屑 ============ */
.md-nav__link--active .md-nav__link,
.md-tabs__link--active .md-tabs__link {
  color: var(--primary) !important;
}

/* ============ 20. 搜索 ============ */
.md-search__input {
  border-radius: var(--radius-6);
  font-family: inherit;
}

.md-search__input:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px var(--primary-focus-ring);
}

.md-search-result__article,
.md-search-result__item {
  border-bottom: 1px solid var(--border);
}

.md-search-result__title {
  color: var(--primary);
  font-weight: 700;
}

.md-search-result__snippet mark {
  background: rgba(251, 191, 36, 0.3);
  border-radius: var(--radius-2);
  padding: 0 2px;
}

/* ============ 21. 图片 ============ */
.md-content img {
  max-width: 100%;
  display: block;
  margin: var(--space-6) auto;
  border-radius: var(--radius-6);
}

.md-content figcaption {
  font-size: var(--fs-caption);
  color: var(--text-tertiary);
  text-align: center;
  margin-top: var(--space-2);
}

/* ============ 22. 响应式 ============ */
/* xs < 576px：手机竖屏 */
@media (max-width: 575px) {
  .md-content h1 { font-size: 32px; }
  .md-content h2 { font-size: 24px; }
  .md-content h3 { font-size: 20px; }
  .md-content { font-size: 15px; }
  .answer-block,
  .md-answer-block { padding: 16px 20px; }
  .column-card { padding: var(--space-4); }
}

/* sm 576-767px：手机横屏/小平板 */
@media (min-width: 576px) and (max-width: 767px) {
  .column-cards-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* md 768-991px：平板 */
@media (min-width: 768px) and (max-width: 991px) {
  .md-nav--primary { width: 240px; }
}

/* lg 992-1199px：笔记本 */
@media (min-width: 992px) {
  .md-nav--primary { width: var(--nav-width); }
}

/* xl >= 1200px */
@media (min-width: 1200px) {
  .md-grid { max-width: var(--content-max-width); }
  html[lang="en"] .md-grid { max-width: var(--content-max-width-en); }
}

/* ============ 23. 无障碍 ============ */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: var(--radius-2);
}

/* 动效减弱 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ 24. 首页 Hero ============ */
.hero-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: var(--space-6) 0 var(--space-4) 0;
}

.hero-lead {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0 0 var(--space-8) 0;
  max-width: 720px;
}

.hero-search {
  max-width: 480px;
  margin: var(--space-6) 0;
}

/* 语言选择落地页样式 */
.language-picker {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin: var(--space-12) 0;
  max-width: 720px;
}

.language-picker__card {
  display: block;
  padding: var(--space-8);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-6);
  text-decoration: none;
  transition: box-shadow var(--transition-medium), border-color var(--transition-medium);
}

.language-picker__card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--primary);
}

.language-picker__card-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 var(--space-2) 0;
}

.language-picker__card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

/* 语言切换器（顶部导航） */
.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  font-weight: 600;
}

.language-switcher__link {
  color: var(--text-secondary);
  padding: 2px 8px;
  border-radius: var(--radius-3);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.language-switcher__link:hover {
  background: var(--primary-hover-bg);
  color: var(--primary);
}

.language-switcher__link--active {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}

/* ============ 25. 归档页 ============ */
.archive-group {
  margin: var(--space-8) 0;
}

.archive-group__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--border);
  margin: 0 0 var(--space-4) 0;
}

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

.archive-list__item {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
}

.archive-list__link {
  color: var(--text-primary);
  font-weight: 500;
  text-decoration: none;
}

.archive-list__link:hover {
  color: var(--primary);
}

.archive-list__date {
  color: var(--text-tertiary);
  font-size: 13px;
  margin-left: var(--space-3);
}

/* ============ 26. 徽章 ============ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-2);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  vertical-align: middle;
}

.badge--new {
  background: var(--success);
  color: #fff;
}

.badge--updated {
  background: var(--warning);
  color: #fff;
}

.badge--pillar {
  background: var(--primary-bg-soft);
  color: var(--primary);
  border: 1px solid var(--primary-border-soft);
}


/* ============================================================
   v2.0 视觉大改造（2026-10-16）
   玻璃拟态 + 渐变 + 动画 + 现代卡片
   ============================================================ */

/* ============ 27. Hero Section（全新设计）============ */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #0F172A 0%, #1E40AF 40%, #3B82F6 70%, #F97316 100%);
  color: #fff;
  padding: 100px 0 80px;
  margin: -24px -24px 60px -24px;
  border-radius: 0;
  overflow: hidden;
}

.hero-bg-animation {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(249, 115, 22, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
  animation: heroFloat 8s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-badge__dot {
  width: 8px;
  height: 8px;
  background: #10B981;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-title__highlight {
  background: linear-gradient(90deg, #F97316, #FB923C);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title__accent {
  color: #F97316;
  position: relative;
}

.hero-title__accent::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 4px;
  background: #F97316;
  border-radius: 2px;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  opacity: 0.95;
  margin-bottom: 32px;
  max-width: 700px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.hero-btn--primary {
  background: linear-gradient(135deg, #F97316, #EA580C);
  color: #fff;
}

.hero-btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.4);
}

.hero-btn--ghost {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  gap: 32px;
  align-items: center;
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
}

.hero-stat {
  text-align: center;
}

.hero-stat__num {
  font-size: 36px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat__plus {
  font-size: 24px;
  color: #F97316;
}

.hero-stat__label {
  font-size: 14px;
  opacity: 0.85;
}

.hero-stat__divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
}

/* ============ 28. 章节容器 ============ */
.section-container {
  margin: 60px 0;
}

.section-header {
  margin-bottom: 32px;
}

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

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
}

/* ============ 29. 三大专栏卡片（玻璃拟态）============ */
.column-cards-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.column-card {
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 20px;
  padding: 36px 28px;
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  overflow: hidden;
}

.column-card__glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--primary-bg-soft) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.column-card:hover .column-card__glow {
  opacity: 1;
}

.column-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.15), 0 8px 16px -4px rgba(0, 0, 0, 0.08);
  border-color: var(--primary);
}

.column-card--network {
  border-top: 4px solid var(--col-network);
}

.column-card--monitor {
  border-top: 4px solid var(--col-monitor);
}

.column-card--ha {
  border-top: 4px solid var(--col-ha);
}

.column-card__icon {
  font-size: 56px;
  margin-bottom: 20px;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.column-card:hover .column-card__icon {
  transform: scale(1.15) rotate(-5deg);
}

.column-card__title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.column-card__desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.column-card__tags {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-bg-soft);
  color: var(--primary);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.column-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--primary);
  font-size: 15px;
}

.column-card__cta .arrow {
  transition: transform 0.3s ease;
}

.column-card:hover .column-card__cta .arrow {
  transform: translateX(6px);
}

/* ============ 30. 旗舰卡片 ============ */
.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.1);
  border-color: var(--primary);
}

.feature-card__badge {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, #F97316, #EA580C);
  color: #fff;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 16px;
}

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.feature-card__desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.feature-card__link {
  display: inline-flex;
  align-items: center;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
}

.feature-card__link:hover {
  text-decoration: underline;
}

/* ============ 31. 信息卡片网格 ============ */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: all 0.3s ease;
}

.info-card:hover {
  box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.08);
  border-color: var(--primary);
}

.info-card__icon {
  font-size: 32px;
  flex-shrink: 0;
}

.info-card__content {
  flex: 1;
}

.info-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.info-card__text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============ 32. 快速入口 ============ */
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.quick-link:hover {
  background: var(--primary-bg-soft);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.quick-link__icon {
  font-size: 18px;
}

.quick-link__text {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

/* ============ 33. 导航栏现代化 ============ */
.md-header {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.md-header--shadow {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
}

.md-tabs__link {
  position: relative;
  transition: all 0.2s ease;
}

.md-tabs__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.md-tabs__link:hover::after,
.md-tabs__link--active::after {
  transform: scaleX(1);
}

/* ============ 34. 侧边导航 ============ */
.md-nav__item .md-nav__link {
  color: var(--text-secondary);
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
  padding-left: 12px;
  margin-left: -12px;
}

.md-nav__item .md-nav__link:hover {
  color: var(--primary);
  background: var(--primary-bg-soft);
  border-left-color: var(--primary);
}

.md-nav__item .md-nav__link--active {
  color: var(--primary) !important;
  background: var(--primary-bg-soft);
  border-left-color: var(--primary);
  font-weight: 600;
}

/* ============ 35. 代码块现代化 ============ */
.codehilite,
.highlight,
pre {
  background: #F1F5F9 !important;
  color: #0F172A !important;
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
  border: 1px solid #E2E8F0;
  overflow-x: auto;
}

.codehilite .hl,
.highlight .hl,
pre .hl {
  background: rgba(79, 70, 229, 0.15) !important;
  border-radius: 4px;
}

/* 确保代码块内的行号锚点不显示 */
.highlight a,
pre a {
  color: inherit;
  text-decoration: none;
}

/* ============ 36. 页脚 ============ */
.md-footer {
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
  color: #94A3B8;
}

.md-footer__inner {
  padding: 40px 0;
}

.md-footer a {
  color: var(--accent);
  transition: color 0.2s ease;
}

.md-footer a:hover {
  color: #fff;
}

/* ============ 37. 响应式适配 ============ */
@media (max-width: 768px) {
  .hero-section {
    padding: 60px 0 40px;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-desc {
    font-size: 16px;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .hero-btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: 16px;
  }
  
  .hero-stat__divider {
    display: none;
  }
  
  .section-title {
    font-size: 24px;
  }
}

/* ============ 38. 深色模式适配 ============ */
[data-md-color-scheme="slate"] .hero-section,
[data-md-color-scheme="midnight"] .hero-section {
  background: linear-gradient(135deg, #0F172A 0%, #1E3A8A 40%, #1D4ED8 70%, #EA580C 100%);
}

[data-md-color-scheme="slate"] .column-card,
[data-md-color-scheme="midnight"] .column-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.95) 0%, rgba(15, 23, 42, 0.95) 100%);
  border-color: #334155;
}

[data-md-color-scheme="slate"] .column-card__title,
[data-md-color-scheme="midnight"] .column-card__title {
  color: #F1F5F9;
}

[data-md-color-scheme="slate"] .column-card__desc,
[data-md-color-scheme="midnight"] .column-card__desc {
  color: #94A3B8;
}

[data-md-color-scheme="slate"] .feature-card,
[data-md-color-scheme="midnight"] .feature-card {
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
  border-color: #334155;
}

[data-md-color-scheme="slate"] .feature-card__title,
[data-md-color-scheme="midnight"] .feature-card__title {
  color: #F1F5F9;
}

[data-md-color-scheme="slate"] .feature-card__desc,
[data-md-color-scheme="midnight"] .feature-card__desc {
  color: #94A3B8;
}

[data-md-color-scheme="slate"] .info-card,
[data-md-color-scheme="midnight"] .info-card {
  background: #1E293B;
  border-color: #334155;
}

[data-md-color-scheme="slate"] .info-card__title,
[data-md-color-scheme="midnight"] .info-card__title {
  color: #F1F5F9;
}

[data-md-color-scheme="slate"] .info-card__text,
[data-md-color-scheme="midnight"] .info-card__text {
  color: #94A3B8;
}

[data-md-color-scheme="slate"] .quick-link,
[data-md-color-scheme="midnight"] .quick-link {
  background: #1E293B;
  border-color: #334155;
}

[data-md-color-scheme="slate"] .quick-link__text,
[data-md-color-scheme="midnight"] .quick-link__text {
  color: #F1F5F9;
}

[data-md-color-scheme="slate"] .section-title,
[data-md-color-scheme="midnight"] .section-title {
  color: #F1F5F9;
}

[data-md-color-scheme="slate"] .section-desc,
[data-md-color-scheme="midnight"] .section-desc {
  color: #94A3B8;
}