/* ============================================================
   《创始人手册》中文版 — 还原 Anthropic 原书视觉风格
   品牌色 / 衬线标题 / 章节彩色封面 hero / 手绘插画
   ============================================================ */

/* 中文回退字体（思源/Noto，覆盖非苹果设备） */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@500;700;900&family=Noto+Sans+SC:wght@400;500;700&display=swap');

/* Anthropic 官方品牌字体（拉丁文，自其公开 CDN 直链；含 Roman/Italic，可变字重 300–800） */
@font-face {
  font-family: "Anthropic Sans";
  src: url("https://cdn.prod.website-files.com/67ce28cfec624e2b733f8a52/69971a00a3295036497e1a28_AnthropicSans-Roman-Web.woff2") format("woff2");
  font-weight: 300 800; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Anthropic Sans";
  src: url("https://cdn.prod.website-files.com/67ce28cfec624e2b733f8a52/69971a016067bf14b9b8f48d_AnthropicSans-Italic-Web.woff2") format("woff2");
  font-weight: 300 800; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "Anthropic Serif";
  src: url("https://cdn.prod.website-files.com/67ce28cfec624e2b733f8a52/69971a1551eb6cda0d656e8a_AnthropicSerif-Roman-Web.woff2") format("woff2");
  font-weight: 300 800; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Anthropic Serif";
  src: url("https://cdn.prod.website-files.com/67ce28cfec624e2b733f8a52/69971a15a9fb8c1107a3570e_AnthropicSerif-Italic-Web.woff2") format("woff2");
  font-weight: 300 800; font-style: italic; font-display: swap;
}

:root {
  /* 官方拉丁字体 + 苹方/Noto 中文（Claude.ai 同款中文渲染） */
  --font-sans: "Anthropic Sans", "PingFang SC", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
  --font-serif: "Anthropic Serif", "Noto Serif SC", "PingFang SC", Georgia, serif;
  --clay: #d97757;
  --clay-deep: #c25b3a;
  --sage: #629987;
  --peri: #827dbd;
  --mint: #bcd1ca;
  --lavender: #cbcadb;
  --blush: #f0d5c7;
  --taupe: #b0aea5;
  --ink: #191512;
  --ink-soft: #5a5048;
  --paper: #faf6f0;
  --paper-deep: #f1e9df;
  --line: #e6dccf;
}

/* ---------- 全局基底 ---------- */
.book,
.book-body,
.book.color-theme-1 .book-body,
.page-wrapper {
  background: var(--paper) !important;
}

.book,
.markdown-section {
  font-family: var(--font-sans);
  color: var(--ink);
}

.markdown-section {
  font-size: 17px;
  line-height: 1.9;
  letter-spacing: 0.01em;
  max-width: 760px;
  padding: 0 24px 60px;
}

.page-inner {
  max-width: 860px;
  padding-top: 0;
}

.markdown-section p {
  margin: 1em 0;
  color: #2b241e;
}

.markdown-section strong { color: var(--ink); font-weight: 700; }
.markdown-section em { font-style: normal; color: var(--clay-deep); }

/* 西文用衬线，更贴近原书 */
.markdown-section,
.markdown-section p {
  font-feature-settings: "kern" 1;
}

/* ---------- 标题：衬线 ---------- */
.markdown-section h1,
.markdown-section h2,
.markdown-section h3,
.markdown-section h4 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.35;
}

.markdown-section h2 {
  font-size: 1.7em;
  margin: 2.4em 0 0.9em;
  padding-bottom: 0.35em;
  border-bottom: 1px solid var(--line);
}

.markdown-section h3 {
  font-size: 1.3em;
  margin: 2em 0 0.7em;
  color: var(--clay-deep);
}

.markdown-section h4 { font-size: 1.1em; margin: 1.6em 0 0.6em; }

/* 正文内首个 H1（非 hero）隐藏，标题由 hero 承担 */
.markdown-section > h1:first-child { display: none; }

/* ============================================================
   章节封面 HERO —— 还原 PDF 整版彩色封面
   ============================================================ */
.chapter-hero {
  position: relative;
  margin: 8px -24px 56px;
  padding: 0;
  border-radius: 22px;
  overflow: hidden;
  min-height: 330px;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
}

.chapter-hero .hero-text {
  position: relative;
  z-index: 2;
  padding: 44px 46px 40px;
  max-width: 62%;
}

.chapter-hero .chapter-pill {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  border: 1.6px solid rgba(25, 21, 18, 0.55);
  border-radius: 999px;
  padding: 5px 16px;
  margin-bottom: 22px;
  background: transparent;
}

.chapter-hero h1.hero-title {
  display: block !important;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 2.9rem;
  line-height: 1.18;
  margin: 0;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.chapter-hero .hero-art {
  position: absolute;
  right: 3%;
  top: 50%;
  transform: translateY(-50%);
  height: 80%;
  max-height: 320px;
  width: auto;
  z-index: 1;
  pointer-events: none;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.06));
}

/* 章节品牌色 */
.hero-clay     { background: var(--clay); }
.hero-sage     { background: var(--sage); }
.hero-peri     { background: var(--peri); }
.hero-mint     { background: var(--mint); }
.hero-lavender { background: var(--lavender); }
.hero-blush    { background: var(--blush); }
.hero-taupe    { background: var(--taupe); }

@media (max-width: 680px) {
  .chapter-hero { flex-direction: column; align-items: stretch; min-height: 0; }
  .chapter-hero .hero-text { max-width: 100%; padding: 30px 26px 22px; }
  .chapter-hero h1.hero-title { font-size: 2rem; }
  .chapter-hero .hero-art {
    position: static; transform: none; height: auto;
    width: 58%; max-height: none; align-self: flex-end;
    margin: -10px 22px 26px;
  }
}

/* ============================================================
   封面（README）
   ============================================================ */
.book-cover {
  margin: 8px -24px 50px;
  border-radius: 24px;
  background: var(--clay);
  color: var(--ink);
  padding: 76px 56px 70px;
  text-align: left;
}

.book-cover .cover-mark {
  width: 56px; height: 56px; margin-bottom: 30px;
}
.book-cover .cover-mark svg { width: 100%; height: 100%; display: block; }

.book-cover .cover-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 3.4rem;
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--ink);
}

.book-cover .cover-sub {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.7rem;
  margin: 0 0 26px;
  color: var(--ink);
}

.book-cover .cover-byline {
  font-size: 0.98rem;
  color: rgba(25, 21, 18, 0.72);
  margin: 0;
  line-height: 1.7;
}

@media (max-width: 680px) {
  .book-cover { padding: 56px 30px 50px; }
  .book-cover .cover-title { font-size: 2.3rem; }
  .book-cover .cover-sub { font-size: 1.25rem; }
}

/* ============================================================
   体例标注（引导语 / 挑战 / 注 / 练习）
   ============================================================ */
.markdown-section blockquote {
  border-left: 4px solid var(--clay);
  background: var(--paper-deep);
  color: var(--ink-soft);
  padding: 0.9em 1.4em;
  margin: 1.5em 0;
  border-radius: 0 10px 10px 0;
}

.markdown-section blockquote p { margin: 0.35em 0; }
.markdown-section blockquote strong,
.markdown-section blockquote em { color: var(--clay-deep); font-style: normal; }

/* 章节内"选对形态"方框（含 h3 的引用块） */
.markdown-section blockquote:has(h3) {
  border-left: none;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 2px 16px rgba(120, 90, 60, 0.06);
  border-radius: 14px;
  padding: 0.4em 1.6em 1.2em;
}
.markdown-section blockquote h3 {
  margin-top: 1em;
  color: var(--ink);
  border: none;
}

/* ---------- 列表 ---------- */
.markdown-section ul { list-style: none; padding-left: 1.3em; }
.markdown-section ul > li { position: relative; margin: 0.55em 0; }
.markdown-section ul > li::before {
  content: "";
  position: absolute;
  left: -1.1em; top: 0.78em;
  width: 6px; height: 6px;
  background: var(--clay);
  border-radius: 50%;
}
.markdown-section ol { padding-left: 1.4em; }
.markdown-section ol > li { margin: 0.55em 0; }
.markdown-section ol > li::marker { color: var(--clay-deep); font-weight: 700; }

/* "练习：" 列表项强调 */
.markdown-section li > strong:first-child { color: var(--clay-deep); }

/* ---------- 表格 ---------- */
.markdown-section table {
  display: table; width: 100%;
  border-collapse: separate; border-spacing: 0;
  border: 1px solid var(--line); border-radius: 12px;
  overflow: hidden; margin: 1.6em 0;
}
.markdown-section table th {
  background: var(--paper-deep);
  font-family: var(--font-serif);
  color: var(--ink); text-align: left;
  border: none; padding: 14px 18px;
}
.markdown-section table td {
  border: none; border-top: 1px solid var(--line);
  padding: 13px 18px; background: #fff;
}

/* ---------- 链接 ---------- */
.markdown-section a {
  color: var(--clay-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(194, 91, 58, 0.4);
  transition: border-color 0.15s, color 0.15s;
}
.markdown-section a:hover { color: var(--clay); border-bottom-color: var(--clay); }

.markdown-section hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 2.4em 0;
}

/* ============================================================
   Honkit 侧栏 / 工具条
   ============================================================ */
.book-summary {
  background: var(--paper-deep);
  border-right: 1px solid var(--line);
  font-family: var(--font-sans);
  font-size: 14px;
}
.book-summary ul.summary li a {
  color: var(--ink-soft);
  padding: 11px 16px;
  transition: color 0.15s, background 0.15s;
}
.book-summary ul.summary li a:hover { color: var(--clay-deep); background: rgba(217, 119, 87, 0.06); }
.book-summary ul.summary li.active > a {
  color: var(--clay-deep) !important;
  background: rgba(217, 119, 87, 0.1);
  font-weight: 700;
  border-left: 3px solid var(--clay);
}
.book-summary ul.summary li.divider { background: var(--line); }

.book-header {
  background: var(--paper) !important;
  box-shadow: 0 1px 0 var(--line);
}
.book-header h1 { display: none; }
.book.color-theme-1 .book-header,
.book-header .btn { color: var(--ink-soft) !important; }

/* 上一页 / 下一页 */
.navigation { color: var(--clay) !important; }
.navigation:hover { color: var(--clay-deep) !important; }

/* 代码 / 行内代码 */
.markdown-section code {
  background: var(--paper-deep);
  color: var(--clay-deep);
  padding: 2px 7px; border-radius: 5px;
  font-size: 0.88em;
}

/* 阅读体验：滚动条与选区 */
::selection { background: rgba(217, 119, 87, 0.25); }