/* === 阙外研报 Tufte 增强样式 === */
/* 基于 Goldman/Bridgewater/Sotheby's 共同 DNA */
/* 2026-07-20 */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,300;8..60,400;8..60,600;8..60,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

:root {
  --qw-font-display: "Source Serif 4", "Noto Serif SC", Georgia, serif;
  --qw-font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --qw-text-3xl: 3rem;
  --qw-text-2xl: 2.25rem;
  --qw-text-xl: 1.75rem;
  --qw-text-lg: 1.375rem;
  --qw-text-base: 1.125rem;
  --qw-text-sm: 0.875rem;
  --qw-text-xs: 0.75rem;
  --qw-leading-tight: 1.15;
  --qw-leading-snug: 1.35;
  --qw-leading-normal: 1.7;
  --qw-leading-relaxed: 1.85;
  --qw-paper: #fefaf6;
  --qw-ink: #1a1a1a;
  --qw-ink-light: #4a4a4a;
  --qw-ink-muted: #767676;
  --qw-gold: #b8a080;
  --qw-gold-light: #d4c5b0;
  --qw-border-table: #e5ded6;
  --qw-stripe: #f8f3ec;
  --qw-surface: #f5f0ea;
  --qw-space-12: 3rem;
  --qw-space-10: 2.5rem;
  --qw-space-8: 2rem;
  --qw-space-6: 1.5rem;
  --qw-space-4: 1rem;
  --qw-space-3: 0.75rem;
  --qw-space-2: 0.5rem;
  --qw-heading-top: 2.5rem;
  --qw-heading-bot: 1rem;
  --qw-para-gap: 1.5em;
  --qw-content-max: 55rem;
}

/* ===== 全局背景 ===== */
body { background: var(--qw-paper) !important; }

/* 深色模式 */
.dark {
  --qw-paper: #1a1815;
  --qw-ink: #e8e4dc;
  --qw-ink-light: #b8b4ac;
  --qw-ink-muted: #8a8680;
  --qw-gold: #c4a87a;
  --qw-gold-light: #5a5040;
  --qw-border-table: #3a3630;
  --qw-stripe: #22201c;
  --qw-surface: #22201c;
}

/* ===== 正文排版（#content 是管道渲染容器） ===== */
#content {
  font-family: var(--qw-font-body) !important;
  font-size: var(--qw-text-base) !important;
  line-height: var(--qw-leading-normal) !important;
  color: var(--qw-ink) !important;
  max-width: var(--qw-content-max) !important;
  margin: 0 auto !important;
}

/* ===== 标题 ===== */
#content h1 {
  font-family: var(--qw-font-display) !important;
  font-size: var(--qw-text-3xl) !important;
  font-weight: 600 !important;
  line-height: var(--qw-leading-tight) !important;
  letter-spacing: -0.02em !important;
  color: var(--qw-ink) !important;
  text-align: left !important;
  margin: var(--qw-heading-top) 0 var(--qw-heading-bot) !important;
  padding-bottom: 0 !important;
  border-bottom: none !important;
}

/* 标题下方金色短线 */
#content h1::after {
  content: '';
  display: block;
  width: 3rem;
  height: 1px;
  background: var(--qw-gold);
  margin-top: var(--qw-space-6);
}

#content h2 {
  font-family: var(--qw-font-display) !important;
  font-size: var(--qw-text-2xl) !important;
  font-weight: 600 !important;
  line-height: var(--qw-leading-snug) !important;
  letter-spacing: -0.015em !important;
  color: var(--qw-ink) !important;
  margin: var(--qw-space-12) 0 var(--qw-space-4) !important;
  padding-bottom: 0 !important;
  border-bottom: none !important;
}

#content h3 {
  font-family: var(--qw-font-display) !important;
  font-size: var(--qw-text-xl) !important;
  font-weight: 600 !important;
  line-height: var(--qw-leading-snug) !important;
  color: var(--qw-ink) !important;
  margin: var(--qw-space-8) 0 var(--qw-space-3) !important;
}

#content h4 {
  font-family: var(--qw-font-display) !important;
  font-size: var(--qw-text-lg) !important;
  font-weight: 600 !important;
  color: var(--qw-ink) !important;
  margin: var(--qw-space-6) 0 var(--qw-space-2) !important;
}

/* ===== 段落 ===== */
#content p {
  font-size: var(--qw-text-base) !important;
  line-height: var(--qw-leading-normal) !important;
  color: var(--qw-ink) !important;
  margin: 0 0 var(--qw-para-gap) !important;
}

/* ===== 引言 ===== */
#content h1 + p {
  font-family: var(--qw-font-display) !important;
  font-size: var(--qw-text-lg) !important;
  line-height: var(--qw-leading-relaxed) !important;
  color: var(--qw-ink-light) !important;
  font-weight: 300 !important;
}

/* ===== Drop Cap ===== */
#content h1 + p::first-letter {
  font-family: var(--qw-font-display) !important;
  font-size: 3.5em !important;
  float: left !important;
  line-height: 0.8 !important;
  padding-right: 0.15em !important;
  padding-top: 0.05em !important;
  color: var(--qw-ink) !important;
}

/* ===== 引用块 ===== */
#content blockquote {
  font-family: var(--qw-font-display) !important;
  font-size: var(--qw-text-lg) !important;
  line-height: var(--qw-leading-relaxed) !important;
  color: var(--qw-ink-light) !important;
  background: none !important;
  border-left: 2px solid var(--qw-gold) !important;
  padding: 0 0 0 var(--qw-space-6) !important;
  margin: var(--qw-space-10) 0 !important;
  border-radius: 0 !important;
}

/* ===== 表格 Tufte 化 ===== */
#content table {
  width: 100% !important;
  border-collapse: collapse !important;
  font-size: var(--qw-text-sm) !important;
  font-variant-numeric: tabular-nums lining-nums !important;
  line-height: 1.5 !important;
  margin: var(--qw-space-8) 0 !important;
  border: none !important;
}

#content thead th {
  font-weight: 600 !important;
  font-size: var(--qw-text-xs) !important;
  text-transform: uppercase !important;
  letter-spacing: 0.08em !important;
  color: var(--qw-ink-muted) !important;
  border-bottom: 2px solid var(--qw-ink) !important;
  border-top: none !important;
  background: none !important;
  padding: var(--qw-space-3) var(--qw-space-4) !important;
}

#content tbody td {
  padding: var(--qw-space-3) var(--qw-space-4) !important;
  border-bottom: 1px solid var(--qw-border-table) !important;
  border-top: none !important;
  color: var(--qw-ink) !important;
  background: none !important;
}

#content tbody tr:nth-child(even) td {
  background: var(--qw-stripe) !important;
}

#content tbody tr:hover td {
  background: #f0ebe0 !important;
}

.dark #content tbody tr:hover td {
  background: #2a2824 !important;
}

/* ===== 列表 ===== */
#content ul, #content ol {
  padding-left: 1.5rem !important;
  margin: var(--qw-space-4) 0 !important;
}

#content li {
  margin: var(--qw-space-2) 0 !important;
  font-size: var(--qw-text-base) !important;
  color: var(--qw-ink) !important;
  line-height: var(--qw-leading-normal) !important;
}

/* ===== 水平线 ===== */
#content hr {
  border: none !important;
  height: 1px !important;
  background: var(--qw-gold) !important;
  width: 3rem !important;
  margin: var(--qw-space-12) 0 !important;
}

/* ===== 链接 ===== */
#content a {
  color: var(--qw-ink) !important;
  text-decoration: underline !important;
  text-decoration-color: var(--qw-gold) !important;
  text-underline-offset: 3px !important;
}

#content a:hover {
  color: var(--qw-gold) !important;
}

/* ===== Strong ===== */
#content strong {
  color: var(--qw-ink) !important;
  font-weight: 600 !important;
}

/* ===== 代码 ===== */
#content code {
  font-size: var(--qw-text-sm) !important;
  background: var(--qw-surface) !important;
  padding: 1px 6px !important;
  border-radius: 3px !important;
  color: var(--qw-ink-light) !important;
}

/* ===== 移动端 ===== */
@media (max-width: 640px) {
  :root {
    --qw-content-max: 100%;
    --qw-text-3xl: 1.75rem;
    --qw-text-2xl: 1.375rem;
    --qw-text-xl: 1.25rem;
    --qw-text-base: 1rem;
    --qw-text-lg: 1.125rem;
  }
}
/* ===== Tufte 侧注系统 ===== */
/* 侧注浮动于右侧边栏，数据来源/方法论注释/术语解释用，不放文末 */
.sidenote, .marginnote {
  float: right;
  clear: right;
  margin-right: -60%;
  width: 50%;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  line-height: 1.3;
  vertical-align: baseline;
  position: relative;
  color: var(--qw-ink-muted);
}

/* 侧注编号 */
.sidenote-number { counter-increment: sidenote-counter; }
.sidenote-number::after, .sidenote::before {
  content: counter(sidenote-counter) ' ';
  font-size: 0.8rem;
  position: relative;
  top: -0.4rem;
  color: var(--qw-gold);
}

/* 移动端：侧注隐藏，点击切换 */
@media (max-width: 760px) {
  .sidenote, .marginnote { display: none; }
  .margin-toggle:checked + .sidenote,
  .margin-toggle:checked + .marginnote { display: block; float: left; width: 95%; margin: 1rem 2.5%; }
}

/* ===== P2: Tufte 主栏+侧栏 Grid 布局 ===== */
@media (min-width: 900px) {
  #content {
    display: grid !important;
    grid-template-columns: 1fr 260px !important;
    gap: 3rem !important;
    max-width: 65rem !important;
  }
  #content > * {
    grid-column: 1;
  }
  #content > table,
  #content > .chart-embed,
  #content > pre {
    grid-column: 1 / -1;
  }
  .sidenote, .marginnote {
    grid-column: 2 !important;
    float: none !important;
    margin-right: 0 !important;
    width: 100% !important;
  }
}

/* ===== P2: 封面区 ===== */
.qw-report-cover {
  text-align: center;
  padding: 4rem 2rem 3rem;
  max-width: 55rem;
  margin: 0 auto;
}
.qw-cover-badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--qw-gold);
  margin-bottom: 1.5rem;
}
.qw-cover-title {
  font-family: var(--qw-font-display);
  font-size: 3.5rem;
  font-weight: 600;
  line-height: 1.15;
  color: var(--qw-ink);
  margin: 0 0 1.5rem;
}
.qw-cover-line {
  width: 3rem;
  height: 1px;
  background: var(--qw-gold);
  margin: 0 auto 1.5rem;
}
.qw-cover-meta {
  font-size: 0.8rem;
  color: var(--qw-ink-muted);
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.qw-cover-summary {
  font-family: var(--qw-font-display);
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--qw-ink-light);
  max-width: 40rem;
  margin: 0 auto;
  text-align: left;
}
@media (max-width: 640px) {
  .qw-cover-title { font-size: 2rem; }
}

/* Dark mode cover */
.dark .qw-cover-title { color: var(--qw-ink); }
.dark .qw-cover-summary { color: var(--qw-ink-light); }