/* ============================================================
   main.css — 共用设计系统 (40 篇文章共用)
   2 套主题: appstackpickr.css (蓝紫), sidegiglab.css (橙红)
   原则: 0 依赖 / 纯 CSS / 暗色模式 / 响应式

   v2 (2026-06-10): 父皇反馈字太小、背景素
   - body 17-18px，h1 48px+，h2 30px+
   - 背景 visual texture: 深色渐变 + 网格点阵 + 暗角
   - 默认走深色底（高对比，可读性更好）

   v3 (2026-06-10): reading progress bar + dark mode toggle + hero decoration
   ============================================================ */

/* ----- 1. CSS 变量默认值 ----- */
:root {
  /* 品牌渐变 (theme 覆盖) */
  --color-primary-1: #6366f1;
  --color-primary-2: #a855f7;
  --color-accent: #ff8a5b;

  /* 文字 — 高对比深色模式优先 */
  --color-text: #1a1a2e;
  --color-text-soft: #3d3d52;
  --color-text-muted: #6b6b80;

  /* 背景 — 深色为主，加纹理 */
  --color-bg: #f8f7ff;
  --color-bg-soft: #eeeef8;
  --color-bg-card: #ffffff;

  /* 边框 / 阴影 */
  --color-border: #d8d8e8;
  --color-border-soft: #e8e8f0;
  --color-shadow: 0 2px 8px rgba(60, 50, 120, 0.06), 0 8px 24px rgba(60, 50, 120, 0.04);
  --color-shadow-hover: 0 4px 16px rgba(60, 50, 120, 0.10), 0 12px 32px rgba(60, 50, 120, 0.06);

  /* 字体 — 偏大、易读 */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-serif: 'Source Serif Pro', 'Georgia', 'Songti SC', serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;

  /* 字号 — 比默认大 1-2 号 */
  --fs-base: 18px;       /* body 18px（默认 16px 偏小）*/
  --fs-base-lg: 19px;    /* 阅读段落用更大 */
  --fs-sm: 16px;
  --fs-xs: 14px;
  --fs-h1: 48px;         /* 大标题 */
  --fs-h2: 32px;         /* 章节 */
  --fs-h3: 24px;
  --fs-h4: 20px;
  --fs-display: 56px;    /* hero 数字 */

  /* 行高 — 阅读优先 */
  --lh-tight: 1.2;
  --lh-normal: 1.7;      /* 比默认 1.5 更松 */
  --lh-loose: 1.8;       /* 长段落 */

  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --max-width: 780px;
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ----- 2. 暗色模式 (auto) ----- */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #f0f0f8;
    --color-text-soft: #c8c8d8;
    --color-text-muted: #9090a8;
    --color-bg: #0a0a14;
    --color-bg-soft: #14141f;
    --color-bg-card: #1a1a28;
    --color-border: #2a2a3a;
    --color-border-soft: #1f1f2c;
    --color-shadow: 0 2px 8px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.3);
    --color-shadow-hover: 0 4px 16px rgba(0,0,0,0.5), 0 12px 32px rgba(0,0,0,0.4);
  }
}

/* ----- 3. Reset + 基础排版 ----- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base-lg);
  line-height: var(--lh-loose);
  color: var(--color-text);
  font-weight: 400;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;

  /* 背景: 渐变 + 网格 + 暗角 — visual texture */
  background-color: var(--color-bg);
  background-image:
    /* 网格点阵（细） */
    radial-gradient(circle at 1px 1px, rgba(99, 102, 241, 0.08) 1px, transparent 0),
    /* 顶部柔光 */
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(168, 85, 247, 0.10), transparent 60%),
    /* 底部暗角 */
    radial-gradient(ellipse 100% 60% at 50% 100%, rgba(0, 0, 0, 0.04), transparent 70%);
  background-size: 24px 24px, 100% 100%, 100% 100%;
  background-attachment: fixed;
  background-repeat: repeat, no-repeat, no-repeat;
  min-height: 100vh;
}

@media (prefers-color-scheme: dark) {
  body {
    background-image:
      radial-gradient(circle at 1px 1px, rgba(168, 85, 247, 0.10) 1px, transparent 0),
      radial-gradient(ellipse 80% 50% at 50% 0%, rgba(99, 102, 241, 0.18), transparent 60%),
      radial-gradient(ellipse 100% 60% at 50% 100%, rgba(0, 0, 0, 0.3), transparent 70%);
  }
}

/* ----- 4. 标题 — 明显大 ----- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin: 2em 0 0.6em;
}

h1 { font-size: var(--fs-h1); margin-top: 0; letter-spacing: -0.03em; }
h2 { font-size: var(--fs-h2); letter-spacing: -0.025em; }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); }
h5 { font-size: 20px; }
h6 { font-size: 18px; }

/* 标题前的小 accent（强化视觉） */
h2 {
  position: relative;
  padding-bottom: 0.4em;
  border-bottom: 2px solid var(--color-border-soft);
}

p {
  margin: 0 0 1.2em;
  line-height: var(--lh-loose);
}

a {
  color: var(--color-primary-2);
  text-decoration: underline;
  text-decoration-color: rgba(168, 85, 247, 0.3);
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
  transition: all var(--transition);
}

a:hover {
  text-decoration-color: var(--color-primary-2);
  text-decoration-thickness: 3px;
}

ul, ol {
  padding-left: 1.4em;
  margin: 0 0 1.4em;
  line-height: var(--lh-loose);
}

li { margin: 0.5em 0; }

strong { font-weight: 700; color: var(--color-text); }

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--color-bg-soft);
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid var(--color-border-soft);
}

blockquote {
  margin: 1.5em 0;
  padding: 1em 1.4em;
  border-left: 4px solid var(--color-primary-2);
  background: var(--color-bg-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: var(--fs-base);
  font-style: italic;
  color: var(--color-text-soft);
}

/* ----- 5. 导航条 — sticky 毛玻璃 ----- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px max(24px, 5vw);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid var(--color-border-soft);
}

@media (prefers-color-scheme: dark) {
  .site-nav { background: rgba(10, 10, 20, 0.7); }
}

.brand {
  font-size: 22px;
  font-weight: 800;
  text-transform: capitalize;
  letter-spacing: -0.02em;
  text-decoration: none;
  background: linear-gradient(135deg, var(--color-primary-1), var(--color-primary-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.nav-links { display: flex; gap: 28px; }
.nav-links a {
  color: var(--color-text-soft);
  font-weight: 500;
  font-size: 16px;
  text-decoration: none;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-primary-2); }

/* ----- 6. 文章容器 ----- */
.article-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px max(20px, 5vw) 80px;
}

/* ----- 7. 标题区 ----- */
.article-title {
  font-size: clamp(36px, 6vw, var(--fs-h1));
  line-height: 1.1;
  margin: 0 0 24px;
  font-weight: 800;
  text-transform: capitalize;
  letter-spacing: -0.035em;
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ----- 8. Byline box — 无外框，仅下方 meta ----- */
.byline-box {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0 0 40px;
  padding: 0;
  background: transparent;
  border: none;
}

.byline-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 22px;
  color: white;
  background: linear-gradient(135deg, var(--color-primary-1), var(--color-primary-2));
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

.byline-info { display: flex; flex-direction: column; gap: 2px; }
.byline-info strong { font-size: 17px; font-weight: 700; }
.byline-role { font-size: 14px; color: var(--color-text-muted); }
.byline-meta { font-size: 14px; color: var(--color-text-muted); margin-top: 2px; }

/* ----- 9. Disclosure / TOC / Verdict ----- */
.disclosure {
  background: var(--color-bg-soft);
  border-left: 4px solid var(--color-accent);
  padding: 16px 20px;
  margin: 0 0 32px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-soft);
}

.toc {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin: 0 0 40px;
  box-shadow: var(--color-shadow);
}

.toc-title {
  font-weight: 700;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}

.toc ul { list-style: none; padding: 0; margin: 0; }
.toc li { margin: 8px 0; }
.toc a {
  text-decoration: none;
  color: var(--color-text-soft);
  font-size: 16px;
  font-weight: 500;
  transition: color var(--transition);
  display: inline-block;
}
.toc a:hover { color: var(--color-primary-2); }
.toc a::before {
  content: "→ ";
  color: var(--color-primary-2);
  margin-right: 4px;
  font-weight: 400;
}

.verdict {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.06), rgba(168, 85, 247, 0.06));
  border: 1px solid rgba(168, 85, 247, 0.2);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin: 0 0 40px;
  font-size: 19px;
  line-height: 1.65;
  color: var(--color-text);
  font-weight: 500;
}

.verdict strong { color: var(--color-primary-2); }

/* ----- 10. 表格 ----- */
.table-wrap { overflow-x: auto; margin: 0 0 32px; border-radius: var(--radius); }

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 16px;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--color-shadow);
}

th, td {
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border-soft);
}

th {
  background: var(--color-bg-soft);
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-soft);
}

tbody tr:nth-child(even) { background: rgba(99, 102, 241, 0.025); }
tbody tr:hover { background: rgba(99, 102, 241, 0.05); }
tbody tr:last-child td { border-bottom: none; }

/* ----- 11. 卡片（Hustle cards, FAQ, callout）----- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin: 0 0 24px;
  box-shadow: var(--color-shadow);
  transition: all var(--transition);
}

.card:hover {
  box-shadow: var(--color-shadow-hover);
  transform: translateY(-2px);
}

.card h3 {
  margin: 0 0 16px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 22px;
}

.card-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary-1), var(--color-primary-2));
  color: white;
  font-size: 18px;
  font-weight: 800;
  text-transform: capitalize;
  flex-shrink: 0;
}

.card-title { flex: 1; }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 0 0 18px;
  padding: 16px;
  background: var(--color-bg-soft);
  border-radius: var(--radius);
}

.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}
.stat-value {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
}

/* ----- 12. CTA 按钮 ----- */
.cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 32px 0;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--color-primary-1), var(--color-primary-2));
  color: white !important;
  text-decoration: none !important;
  font-weight: 700;
  font-size: 17px;
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

.cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.cta-secondary {
  background: transparent;
  color: var(--color-primary-2) !important;
  border: 2px solid var(--color-primary-2);
  box-shadow: none;
}

.cta-secondary:hover {
  background: rgba(168, 85, 247, 0.08);
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.15);
}

.cta-arrow {
  transition: transform var(--transition);
  font-weight: 400;
}

.cta:hover .cta-arrow { transform: translateX(4px); }

/* ----- 13. FAQ ----- */
.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  margin: 0 0 12px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item[open] { box-shadow: var(--color-shadow); }

.faq-item summary {
  padding: 18px 22px;
  font-weight: 600;
  font-size: 17px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 50px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 300;
  color: var(--color-primary-2);
  transition: transform var(--transition);
}

.faq-item[open] summary::after { content: "−"; }

.faq-answer {
  padding: 0 22px 20px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-soft);
}

/* ----- 14. 文章结尾 / Footer ----- */
.article-footer {
  margin: 56px 0 0;
  padding: 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  font-size: 17px;
}

.article-footer p { margin: 0 0 16px; }
.article-footer p:last-child { margin: 0; }

/* ----- 15. 相关推荐 ----- */
.related-posts { margin: 56px 0 0; }
.related-posts-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 20px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-soft);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.related-card {
  display: block;
  padding: 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  text-decoration: none !important;
  color: var(--color-text) !important;
  transition: all var(--transition);
  box-shadow: var(--color-shadow);
}

.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--color-shadow-hover);
  border-color: var(--color-primary-2);
}

.related-card-category {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary-2);
  margin-bottom: 8px;
}

.related-card-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
}

/* ----- 16. 响应式 (≤ 720px) ----- */
@media (max-width: 720px) {
  :root {
    --fs-base: 17px;
    --fs-base-lg: 18px;
    --fs-h1: 36px;
    --fs-h2: 26px;
    --fs-h3: 21px;
    --fs-display: 40px;
  }

  .article-container { padding: 32px 20px 60px; }
  .article-title { font-size: 36px; }

  .site-nav { padding: 14px 20px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 15px; }

  .byline-avatar { width: 48px; height: 48px; font-size: 18px; }
  .byline-info strong { font-size: 16px; }

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

  .cta { padding: 14px 24px; font-size: 16px; }

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

/* ----- 17. 滚动条美化 (轻) ----- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg-soft); }
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover { background: var(--color-primary-2); }

/* ----- 18. 选区高亮 ----- */
::selection {
  background: rgba(168, 85, 247, 0.3);
  color: var(--color-text);
}

/* ============================================================
   v3 新增 (2026-06-10)

   19. Reading progress bar — 顶部 4px 渐变条
   20. Dark mode toggle — 右上角按钮（手动切换）
   21. Hero decoration — 浮动装饰形状（纯 CSS，不算"图片"）
   ============================================================ */

/* ----- 19. Reading progress bar ----- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary-1), var(--color-primary-2), var(--color-accent));
  z-index: 200;
  transition: width 80ms linear;
  box-shadow: 0 0 12px rgba(168, 85, 247, 0.5);
}

/* ----- 20. Dark mode toggle (REMOVED 2026-06-10 per 父皇 feedback) ----- */

/* ----- 21. Hero decoration (CSS only, no images) ----- */
.hero-decoration {
  position: relative;
  margin: 0 0 40px;
  padding: 48px 32px 56px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.06), rgba(168, 85, 247, 0.06));
  border: 1px solid var(--color-border-soft);
  overflow: hidden;
  isolation: isolate;
}

/* 装饰元素：浮动圆 + 渐变球 */
.hero-decoration::before,
.hero-decoration::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.5;
  z-index: -1;
  pointer-events: none;
}

.hero-decoration::before {
  width: 200px;
  height: 200px;
  background: var(--color-primary-1);
  top: -60px;
  right: -40px;
  animation: float 8s ease-in-out infinite;
}

.hero-decoration::after {
  width: 180px;
  height: 180px;
  background: var(--color-primary-2);
  bottom: -50px;
  left: -30px;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(20px, -20px) scale(1.05); }
  66%      { transform: translate(-15px, 15px) scale(0.95); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-decoration::before,
  .hero-decoration::after { animation: none; }
}

.hero-decoration .article-title { margin: 0 0 16px; position: relative; z-index: 1; }
.hero-decoration .byline-box { margin: 0; position: relative; z-index: 1; }
.hero-decoration .disclosure { margin: 24px 0 0; position: relative; z-index: 1; }

/* 文章首屏加 hero 装饰 */
.article-container > h1:first-of-type,
.article-container > .hero-decoration h1 {
  /* 默认无装饰 */
}


/* ============================================================
   v4 (2026-06-11): Editorial Data 财报风 — 父皇拍板
   参考: Bloomberg / The Economist / Stripe Press
   原则: NO emoji / NO icon / NO gradient / NO rounded > 4px
   文档: ~/.openclaw/workspace/bin/editorial-design-system.md

   新增组件 (不破坏旧样式):
   - .date-stamp          右上角 "JUNE 2026 / ISSUE 11"
   - .hero-stat-block     3 stat 数字横排
   - .hero-stat-num       巨字 stat
   - .bar-chart           5 根 bar 财报 chart
   - .data-card           左侧 4px accent 竖条 + 标题
   - .section-rule        章节分割横线
   - .byline-italic       italic 13px byline
   ============================================================ */

.date-stamp {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-align: right;
  margin-bottom: 8px;
}

.hero-stat-block {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 32px 0;
  border-top: 2px solid var(--color-text);
  border-bottom: 1px solid var(--color-border);
  margin: 32px 0;
}

.hero-stat-num {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 800;
  text-transform: capitalize;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-text);
  display: block;
  margin-bottom: 8px;
}

.hero-stat-label {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 220px;
  gap: 12px;
  padding: 24px 0 16px;
  border-bottom: 1px solid var(--color-border);
  margin: 24px 0 8px;
}

.bar-chart .bar {
  flex: 1;
  background: var(--color-text);
  position: relative;
  min-width: 32px;
  transition: opacity 200ms ease;
}

.bar-chart .bar:hover { opacity: 0.7; }

.bar-chart .bar-label {
  position: absolute;
  top: -22px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-soft);
}

.bar-chart-axis {
  display: flex;
  justify-content: space-between;
  padding: 8px 0 0;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.data-card {
  display: block;
  padding: 16px 20px 16px 24px;
  border-left: 4px solid var(--color-accent, var(--color-text));
  background: transparent;
  text-decoration: none;
  color: var(--color-text);
  transition: background 150ms ease, transform 150ms ease;
  margin-bottom: 0;
}

.data-card:hover {
  background: var(--color-accent-soft, rgba(31, 27, 22, 0.04));
  transform: translateX(2px);
  text-decoration: none;
}

.data-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 6px;
  color: var(--color-text);
}

.data-card .data-card-meta {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  display: flex;
  gap: 12px;
  align-items: center;
}

.section-rule {
  display: flex;
  align-items: baseline;
  gap: 16px;
  border-bottom: 1px solid var(--color-text);
  margin: 56px 0 24px;
  padding-bottom: 8px;
}

.section-rule .section-rule-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0;
}

.section-rule .section-rule-count {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-left: auto;
}

.byline-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 14px;
  color: var(--color-text-soft);
  letter-spacing: 0.01em;
}

.byline-italic strong {
  font-weight: 600;
  color: var(--color-text);
  font-style: normal;
}

/* Mobile 调小 */
@media (max-width: 720px) {
  .hero-stat-block {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .hero-stat-num { font-size: 44px; }
  .bar-chart { height: 160px; }
  .data-card h3 { font-size: 17px; }
}

/* Footer Editorial 样式 (父皇 2026-06-11 11:53 反馈: 居中 + 字体美化) */
.site-footer {
  background: var(--color-bg, #FAF7F2);
  border-top: 1px solid var(--color-border, #E8E2D5);
  margin-top: 64px;
  padding: 32px 20px;
  text-align: center;
  font-family: 'Source Serif Pro', 'Georgia', serif;
  letter-spacing: 0.02em;
  color: var(--color-text, #1F1B16);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.footer-brand {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 800;/* text-transform removed by太子 6-12 13:30 - HTML 文本 SideGigLab CamelCase */
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--color-text, #1F1B16);
}
.footer-tagline {
  font-family: 'Source Serif Pro', 'Georgia', serif;
  font-style: italic;
  font-size: 14px;
  color: var(--color-text, #1F1B16);
  margin: 0;
}
.footer-copy {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text, #1F1B16);
  margin: 0;
}
@media (max-width: 720px) {
  .footer-brand { font-size: 16px; }
  .footer-tagline { font-size: 13px; }
  .footer-copy { font-size: 11px; }
}