/* ============================================================
   玖的分享站 - 现代简洁设计系统
   浅色主题 / 响应式
   ============================================================ */

:root {
  --bg: #faf8f3;
  --bg-soft: #f3efe6;
  --bg-card: #ffffff;
  --text: #1c1a17;
  --text-soft: #6b655d;
  --text-muted: #9a9388;
  --brand: #c8332b;        /* 朱砂红（中国红，2026-10-14 视觉改版定色） */
  --brand-soft: #fbeee9;
  --brand-dark: #9e211b;
  --accent: #c8332b;       /* 统一走红，不再用琥珀 */
  --border: #e6e1d6;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);
  --shadow-md: 0 6px 20px rgba(16, 24, 40, .08);
  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1080px;
  --serif: "Iowan Old Style","Palatino Linotype","Songti SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-soft);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; transition: color .15s; }
a:hover { color: var(--brand-dark); }

img { max-width: 100%; height: auto; display: block; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}

.brand .logo {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--brand);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1rem; font-weight: 800;
}

.main-nav { display: flex; gap: 4px; }
.main-nav a {
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-soft);
  font-weight: 500;
  font-size: .95rem;
}
.main-nav a:hover { background: var(--bg-soft); color: var(--text); }
.main-nav a.active { background: var(--brand-soft); color: var(--brand-dark); }

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  width: 42px; height: 40px;
  cursor: pointer;
  font-size: 1.1rem;
}

/* ---------- Hero ---------- */
.hero {
  padding: 64px 0 40px;
  text-align: center;
}
.hero h1 {
  font-size: 2.4rem;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.hero h1 span { color: var(--brand); }
.hero p {
  color: var(--text-soft);
  max-width: 560px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---------- Layout grid (main + sidebar) ---------- */
.layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  padding: 32px 0 64px;
}
.content { min-width: 0; }

/* ---------- Article cards (index) ---------- */
.section-title {
  font-size: 1.25rem;
  margin: 8px 0 20px;
  display: flex; align-items: center; gap: 10px;
}
.section-title::before {
  content: ""; width: 5px; height: 18px;
  background: var(--brand); border-radius: 3px;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform .18s, box-shadow .18s;
  display: flex; flex-direction: column;
}
.post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.post-card .tag {
  align-self: flex-start;
  font-size: .75rem;
  background: var(--brand-soft);
  color: var(--brand-dark);
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
  margin-bottom: 12px;
}
.card-thumb { display: block; width: 100%; height: 160px; object-fit: cover; border-radius: 8px; margin: 0 0 12px; }
.post-card h3 { margin: 0 0 8px; font-size: 1.15rem; line-height: 1.4; }
.post-card h3 a { color: var(--text); }
.post-card h3 a:hover { color: var(--brand); }
.post-card p { color: var(--text-soft); margin: 0; font-size: .95rem; flex: 1; }
.post-card .meta {
  margin-top: 16px;
  color: var(--text-muted);
  font-size: .82rem;
  display: flex; gap: 12px;
}

.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  overflow: hidden;
  padding: 0;
}
.featured .featured-visual {
  background: linear-gradient(135deg, var(--brand-soft), #fff);
  display: flex; align-items: center; justify-content: center;
  min-height: 220px;
  font-size: 3.2rem;
}
.featured .featured-body { padding: 26px 28px; display: flex; flex-direction: column; }
.featured .featured-body h3 { font-size: 1.4rem; }

/* ---------- Sidebar ---------- */
.sidebar { display: flex; flex-direction: column; gap: 20px; }
.widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}
.widget h4 {
  margin: 0 0 14px;
  font-size: .95rem;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.about-card .avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; font-weight: 700;
  margin-bottom: 14px;
}
.about-card p { margin: 0; color: var(--text-soft); font-size: .95rem; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a {
  background: var(--bg-soft);
  color: var(--text-soft);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: .85rem;
}
.tag-cloud a:hover { background: var(--brand-soft); color: var(--brand-dark); }

/* ---------- Fact citations（关键事实数字的官方源引用标记）----------
   用 <sup class="cite"><a href="..." title="Source:...">[1]</a></sup> 挂在数字旁边，
   底部 <section class="sources"> 列出完整来源。目标是让 AI 搜索引擎（GEO）
   能追根溯源，也让读者一眼确认数字不是编的。风格上克制：小、灰、不抢戏。 */
sup.cite { font-size: .7em; margin-left: 1px; font-weight: 500; }
sup.cite a { color: var(--brand); text-decoration: none; font-weight: 500; }
sup.cite a:hover { text-decoration: underline; }
.sources {
  margin: 28px 0;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--brand);
  border-radius: var(--radius);
}
.sources h4 { margin: 0 0 8px; font-size: 1rem; color: var(--text); }
.sources .sources-note {
  margin: 0 0 12px;
  font-size: .88rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.sources ol { margin: 0; padding-left: 1.3em; font-size: .92rem; }
.sources ol li { margin-bottom: 6px; line-height: 1.55; color: var(--text); }
.sources ol li a { color: var(--brand); text-decoration: none; word-break: break-all; }
.sources ol li a:hover { text-decoration: underline; }

/* ---------- Affiliate block（联盟营销区块）----------
   用 <aside class="affiliate"> 包；里面 .aff-title 标题、.aff-list 链接列表、
   .aff-disclose 利益披露小字。JS 读 config.js 的 affiliate.links 决定替换/隐藏。 */
.affiliate {
  margin: 28px 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
}
.affiliate .aff-title {
  display: flex; align-items: center; gap: 8px;
  font-size: .95rem; font-weight: 700; color: var(--text);
  margin: 0 0 12px;
}
.affiliate .aff-title .aff-ico {
  width: 28px; height: 28px; flex: 0 0 28px;
  background: var(--brand-soft); color: var(--brand-dark);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}
.affiliate .aff-list { list-style: none; margin: 0; padding: 0; }
.affiliate .aff-list li {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--border);
  font-size: .95rem;
}
.affiliate .aff-list li:first-child { border-top: 0; }
.affiliate .aff-list .aff-name { color: var(--text-soft); min-width: 0; }
.affiliate .aff-list a {
  margin-left: auto; flex: 0 0 auto;
  background: var(--brand); color: #fff;
  padding: 6px 14px; border-radius: 999px;
  font-size: .85rem; font-weight: 600;
  transition: background .15s;
}
.affiliate .aff-list a:hover { background: var(--brand-dark); }
.affiliate .aff-disclose {
  margin: 12px 0 0; font-size: .78rem; color: var(--text-muted);
  line-height: 1.5; border-top: 1px dashed var(--border); padding-top: 10px;
}

/* ---------- Ad slots ---------- */
.ad-slot {
  width: 100%;
  min-height: 90px;
  margin: 20px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: repeating-linear-gradient(45deg, #fafbfc, #fafbfc 12px, #f3f4f6 12px, #f3f4f6 24px);
  color: var(--text-muted);
  font-size: .8rem;
  text-align: center;
  padding: 12px;
  overflow: hidden;
}
.ad-slot .ad-label { position: absolute; font-size: .68rem; color: var(--text-muted); opacity: .6; }
.ad-slot.sidebar { min-height: 250px; }
.ad-slot.incontent { min-height: 90px; }
.ad-slot b { display: block; font-size: .82rem; color: var(--text-soft); margin-bottom: 2px; }
/* 未激活 AdSense 前整体隐藏广告位：不显示 "pending" 占位文案、也不留空白虚线框。
   广告脚本注入 <ins class="adsbygoogle"> 或 <iframe> 后自动恢复显示（零改动）。
   原写法 .ad-slot:has(> ins,> iframe,> [data-ad]) 无效——data-ad 挂在 div 自身而非子元素。 */
.ad-slot:not(:has(> ins, > iframe)) { display: none; }
/* 真广告注入后（含 <ins>）隐藏半透明"广告位"标签，避免叠在真广告上 */
.ad-slot:has(> ins) .ad-label { display: none; }

/* ---------- Article detail page ---------- */
.article-wrap { max-width: 720px; margin: 0 auto; padding: 40px 20px 64px; }
.article-wrap .breadcrumb {
  color: var(--text-muted);
  font-size: .88rem;
  margin-bottom: 16px;
}
.article-wrap .breadcrumb a { color: var(--text-muted); }
.article-wrap .breadcrumb a:hover { color: var(--brand); }

.post-hero {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}
.post-hero .tag {
  display: inline-block;
  font-size: .75rem;
  background: var(--brand-soft);
  color: var(--brand-dark);
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
  margin-bottom: 14px;
}
.post-hero h1 { font-size: 1.9rem; margin: 0 0 12px; line-height: 1.3; letter-spacing: -0.01em; }
.post-hero .meta { color: var(--text-muted); font-size: .9rem; display: flex; gap: 16px; flex-wrap: wrap; }

.post-body {
  font-size: 1.05rem;
  color: #2a2f3a;
}
.post-body p { margin: 0 0 1.2em; }
.post-body h2 { font-size: 1.4rem; margin: 1.6em 0 .6em; }
.post-body h3 { font-size: 1.15rem; margin: 1.3em 0 .5em; }
.post-body ul, .post-body ol { padding-left: 1.4em; margin: 0 0 1.2em; }
.post-body blockquote {
  border-left: 3px solid var(--brand);
  background: var(--brand-soft);
  margin: 1.4em 0;
  padding: 14px 18px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-soft);
}
.post-body code {
  background: var(--bg-soft);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: .9em;
  font-family: "SF Mono", Consolas, monospace;
}
.post-body pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 16px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: .88rem;
  line-height: 1.6;
}
.post-body pre code { background: transparent; padding: 0; color: inherit; }

.post-tags { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--border); }
.post-share { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.post-share a {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: .88rem;
  color: var(--text-soft);
}
.post-share a:hover { border-color: var(--brand); color: var(--brand); }

.back-link { display: inline-block; margin-bottom: 20px; font-size: .9rem; }

.related { margin-top: 48px; }
.related h4 { font-size: 1.1rem; margin-bottom: 16px; }

/* ---------- Simple pages (about / contact / privacy) ---------- */
.page-wrap { max-width: 720px; margin: 0 auto; padding: 48px 20px 64px; }
.page-wrap h1 { font-size: 1.8rem; margin: 0 0 16px; }
.page-wrap p { color: var(--text-soft); }

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.contact-card .row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.contact-card .row:last-child { border-bottom: 0; }
.contact-card .row .ico {
  width: 38px; height: 38px;
  background: var(--brand-soft);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 20px;
}
.footer-inner {
  display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  align-items: flex-start;
}
.footer-brand { max-width: 320px; }
.footer-brand .brand { margin-bottom: 10px; }
.footer-brand p { color: var(--text-soft); font-size: .9rem; margin: 0; }
.footer-links { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-links h5 { margin: 0 0 12px; font-size: .85rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }
.footer-links ul { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: var(--text-soft); font-size: .92rem; }
.copyright {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .85rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

/* ---------- 404 ---------- */
.error-page { text-align: center; padding: 80px 20px; }
.error-page .code { font-size: 5rem; font-weight: 800; color: var(--brand); margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { order: 2; }
  .post-grid { grid-template-columns: 1fr; }
  .featured { grid-template-columns: 1fr; }
  .featured .featured-visual { min-height: 140px; font-size: 2.4rem; }
}

/* ---- data tables (T3 / T8 / T10 articles) ---- */
.post-body table { width:100%; border-collapse: collapse; margin: 18px 0; font-size: 0.95rem; }
.post-body table th, .post-body table td { border:1px solid var(--border); padding:9px 11px; text-align:left; vertical-align: top; }
.post-body table thead th { background: var(--bg-alt, #f6f7f9); font-weight: 700; }
.post-body table tbody tr:nth-child(even) { background: rgba(0,0,0,0.02); }
.post-body table caption { caption-side: top; text-align:left; font-size:0.88rem; color:#666; padding-bottom:6px; }

/* ---- in-body article images (AI-generated, injected by _gen_article_images.py) ---- */
/* The generator stamps a small "AI生成" mark in the bottom-right corner. The source
   image is 1536x1024 (3:2); a 16/9 window + cover + top-anchored crop hides the
   bottom ~16% of the picture, which is where that mark sits. Verified empirically. */
.post-fig {
  margin: 1.9em 0 1.7em;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0,0,0,0.10);
}
.post-fig-clip {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-alt, #f6f7f9);
}
.post-fig-clip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.post-fig-cap {
  padding: 9px 14px;
  background: var(--bg-alt, #f6f7f9);
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--text-muted, #666);
  border-top: 1px solid var(--border, #e5e7eb);
}

@media (max-width: 640px) {
  .hero h1 { font-size: 1.9rem; }
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px;
    box-shadow: var(--shadow-md);
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px; }
  .post-hero { padding: 22px; }
  .post-hero h1 { font-size: 1.5rem; }
}

/* Language switcher */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 16px;
  font-size: 0.85rem;
  font-weight: 600;
}
.lang-switch a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s;
}
.lang-switch a:hover {
  color: var(--brand);
  background: var(--brand-soft);
}
.lang-switch a.lang-active {
  color: var(--brand);
  font-weight: 700;
}
.lang-sep {
  color: var(--border);
  margin: 0 2px;
}

@media (max-width: 768px) {
  .lang-switch {
    display: none;
  }
  .main-nav .lang-switch-mobile {
    display: flex !important;
  }
}

.main-nav .lang-switch-mobile {
  display: none;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  justify-content: center;
  gap: 12px;
}

/* ============================================================
   2026-10-14 视觉改版（editorial）· 全部为增量新规则，不动已有类
   ============================================================ */

/* --- 衬线标题：editorial 气质，正文保持系统 sans --- */
.hero h1, .section-title, .post-card h3, .post-hero h1,
.featured .featured-body h3, .post-body h2, .post-body h3,
.related h4, .footer-cats h3, .page-wrap h1, .feat h1 {
  font-family: var(--serif);
}

/* --- 本期看点 featured --- */
.feat { padding: 48px 0 32px; border-bottom: 1px solid var(--border); }
.feat-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.feat-kicker { font-size: .74rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--brand); }
.feat h1 { font-size: clamp(2rem, 4.2vw, 3rem); line-height: 1.12; margin: 10px 0 14px; letter-spacing: -.01em; }
.feat .dek { color: var(--text-soft); font-size: 1.05rem; margin: 0 0 16px; }
.feat .pull { font-family: var(--serif); font-size: 1.3rem; line-height: 1.4; color: var(--brand-dark);
  border-left: 3px solid var(--brand); padding-left: 16px; margin: 0 0 16px; }
.feat-meta { font-size: .85rem; color: var(--text-muted); display: flex; gap: 14px; align-items: center; }
.feat-media { border-radius: 14px; overflow: hidden; border: 1px solid var(--border); aspect-ratio: 4 / 3; }
.feat-media img { width: 100%; height: 100%; object-fit: cover; }

/* --- 主题 tab --- */
.topic-nav { display: flex; flex-wrap: wrap; gap: 8px; padding: 22px 20px; border-bottom: 1px solid var(--border); }
.topic { padding: 6px 14px; border: 1px solid var(--border); border-radius: 999px; font-size: .88rem; color: var(--text); background: var(--bg-card); }
.topic:hover { border-color: var(--brand); color: var(--brand); }
.topic.on { background: var(--brand); color: #fff; border-color: var(--brand); }

/* --- 侧栏 FAQ（替换死链 Topics）--- */
.faq-item { padding: 12px 0; border-top: 1px solid var(--border); }
.faq-item:first-of-type { border-top: 0; }
.faq-item .q { font-size: .92rem; font-weight: 600; margin: 0 0 4px; }
.faq-item .a { font-size: .86rem; color: var(--text-soft); margin: 0; }

/* --- 文章内 TOC 色系统一（Phase 2 抛光；当前仅立类，等生成器改模板再全量启用）--- */
.toc { border: 1px solid var(--border); background: var(--bg); border-radius: 10px; padding: 14px 18px; margin: 18px 0; }
.toc-title { font-weight: 700; margin: 0 0 8px; font-size: 15px; color: var(--text); }
.toc ul { margin: 0; padding-left: 18px; list-style: square; }
.toc a { color: var(--brand-dark); text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* --- 响应式：窄屏 feat 单列 --- */
@media (max-width: 860px) {
  .feat-grid { grid-template-columns: 1fr; gap: 24px; }
}