/* 临邛叶氏史 - 古典雅致的阅读体验 */
:root {
  --color-bg: #f4ecd8;
  --color-bg-alt: #ebe1c8;
  --color-paper: #fdf6e3;
  --color-text: #3d2f1f;
  --color-text-soft: #6b5d4b;
  --color-text-muted: #8a7a64;
  --color-accent: #8b3a3a;
  --color-accent-dark: #6b1f1f;
  --color-gold: #b8860b;
  --color-border: #c4a878;
  --color-border-soft: #d8c5a0;
  --color-shadow: rgba(80, 50, 20, 0.08);
  --font-serif: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --font-kai: "Kaiti SC", "STKaiti", "KaiTi", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-serif);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.85;
  font-size: 17px;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(184, 134, 11, 0.04), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(139, 58, 58, 0.04), transparent 40%);
  min-height: 100vh;
}

.page { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-border-soft);
}

.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; color: inherit; }

.brand-mark {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-accent); color: #fff;
  font-family: var(--font-kai); font-size: 28px; font-weight: bold;
  border-radius: 4px; box-shadow: 2px 2px 0 var(--color-gold);
}

.brand-text { display: flex; flex-direction: column; }
.brand-title { font-size: 22px; font-weight: bold; font-family: var(--font-serif); letter-spacing: 2px; }
.brand-subtitle { font-size: 12px; color: var(--color-text-muted); font-family: var(--font-kai); margin-top: 2px; }

.site-nav { display: flex; gap: 28px; }
.site-nav a {
  color: var(--color-text); text-decoration: none;
  font-family: var(--font-kai); font-size: 16px;
  padding: 6px 0; border-bottom: 2px solid transparent; transition: all 0.2s;
}
.site-nav a:hover { color: var(--color-accent); border-bottom-color: var(--color-accent); }

.hero-header { border-bottom: none; padding-top: 32px; }
.hero-header .site-nav { margin-left: auto; }

.hero {
  position: relative;
  padding: 60px 20px 80px;
  text-align: center;
  margin-bottom: 60px;
  border-radius: 4px;
  background: linear-gradient(135deg, rgba(139, 58, 58, 0.04), rgba(184, 134, 11, 0.04));
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 35px, rgba(184, 134, 11, 0.03) 35px, rgba(184, 134, 11, 0.03) 36px),
    repeating-linear-gradient(-45deg, transparent, transparent 35px, rgba(139, 58, 58, 0.02) 35px, rgba(139, 58, 58, 0.02) 36px);
  pointer-events: none;
}
.hero-content { position: relative; }

.hero-mark {
  width: 96px; height: 96px; margin: 0 auto 32px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-accent); color: var(--color-bg);
  font-family: var(--font-kai); font-size: 56px; font-weight: bold;
  border-radius: 6px;
  box-shadow: 4px 4px 0 var(--color-gold), 0 12px 32px rgba(139, 58, 58, 0.15);
}

.hero-title {
  font-size: 64px; font-family: var(--font-serif);
  letter-spacing: 16px; margin-right: -16px;
  color: var(--color-text); font-weight: bold; text-indent: 16px;
}
.hero-subtitle { font-size: 20px; font-family: var(--font-kai); color: var(--color-text-soft); margin: 20px 0 12px; letter-spacing: 4px; }
.hero-desc { font-size: 16px; color: var(--color-text-muted); font-family: var(--font-kai); line-height: 2; margin-bottom: 40px; }

.hero-stats { display: flex; justify-content: center; gap: 48px; margin: 32px 0 48px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num { font-size: 36px; font-weight: bold; color: var(--color-accent); font-family: var(--font-serif); }
.stat-label { font-size: 14px; color: var(--color-text-muted); margin-top: 4px; font-family: var(--font-kai); letter-spacing: 2px; }

.hero-cta {
  display: inline-block; padding: 14px 40px;
  background: var(--color-accent); color: #fff;
  text-decoration: none; font-family: var(--font-kai); font-size: 18px; letter-spacing: 2px;
  border-radius: 4px; box-shadow: 3px 3px 0 var(--color-gold); transition: all 0.2s;
}
.hero-cta:hover { background: var(--color-accent-dark); transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--color-gold); }

.section { margin: 80px 0; }
.section-title {
  font-size: 36px; text-align: center; font-family: var(--font-serif);
  color: var(--color-text); margin-bottom: 12px; letter-spacing: 4px;
  position: relative; padding-bottom: 20px;
}
.section-title::after {
  content: ''; display: block; width: 60px; height: 2px;
  background: var(--color-accent); margin: 16px auto 0;
}
.section-subtitle { text-align: center; font-family: var(--font-kai); color: var(--color-text-muted); margin-bottom: 48px; letter-spacing: 2px; }

.volumes-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.volume-card {
  background: var(--color-paper); border: 1px solid var(--color-border-soft);
  padding: 28px 24px; border-radius: 4px;
  text-decoration: none; color: inherit; transition: all 0.25s;
  position: relative; overflow: hidden;
}
.volume-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 4px; height: 100%; background: var(--color-accent);
  opacity: 0; transition: opacity 0.25s;
}
.volume-card:hover { border-color: var(--color-accent); transform: translateY(-2px); box-shadow: 0 8px 24px var(--color-shadow); }
.volume-card:hover::before { opacity: 1; }
.volume-card-num { font-size: 14px; color: var(--color-accent); font-family: var(--font-kai); letter-spacing: 2px; }
.volume-card-name { font-size: 22px; font-weight: bold; margin: 8px 0 14px; font-family: var(--font-serif); }
.volume-card-desc { font-size: 14px; color: var(--color-text-soft); line-height: 1.7; font-family: var(--font-kai); margin-bottom: 16px; }
.volume-card-count { font-size: 13px; color: var(--color-text-muted); border-top: 1px dashed var(--color-border-soft); padding-top: 12px; }

.volumes-list { display: flex; flex-direction: column; gap: 48px; }
.volume {
  background: var(--color-paper); border: 1px solid var(--color-border-soft);
  border-radius: 4px; padding: 32px 36px; position: relative;
}
.volume::before {
  content: ''; position: absolute; top: 16px; right: 16px;
  width: 32px; height: 32px;
  border-top: 2px solid var(--color-gold); border-right: 2px solid var(--color-gold);
  opacity: 0.4;
}
.volume::after {
  content: ''; position: absolute; bottom: 16px; left: 16px;
  width: 32px; height: 32px;
  border-bottom: 2px solid var(--color-gold); border-left: 2px solid var(--color-gold);
  opacity: 0.4;
}

.volume-header { margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px dashed var(--color-border-soft); }
.volume-title { font-size: 26px; color: var(--color-accent); font-family: var(--font-serif); letter-spacing: 2px; }
.volume-intro { font-family: var(--font-kai); color: var(--color-text-soft); margin: 8px 0; font-size: 15px; }
.volume-stats {
  display: inline-block; padding: 2px 12px;
  background: var(--color-gold); color: #fff;
  font-size: 12px; border-radius: 12px; font-family: var(--font-kai); margin-top: 8px;
}

.chapter-list { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.chapter-item a {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px 16px; background: var(--color-bg);
  border: 1px solid transparent; border-radius: 4px;
  text-decoration: none; color: inherit; transition: all 0.2s;
}
.chapter-item a:hover { border-color: var(--color-accent); background: var(--color-bg-alt); transform: translateX(2px); }
.ch-num {
  flex-shrink: 0; width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-alt); color: var(--color-accent);
  font-weight: bold; border-radius: 4px; font-family: var(--font-serif); font-size: 16px;
}
.chapter-item a:hover .ch-num { background: var(--color-accent); color: #fff; }
.ch-content { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.ch-title { font-size: 15px; font-weight: bold; font-family: var(--font-serif); }
.ch-meta { display: flex; gap: 12px; font-size: 12px; color: var(--color-text-muted); font-family: var(--font-kai); }
.ch-time { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ch-chars-list {
  font-size: 12px; color: var(--color-text-muted); font-family: var(--font-kai);
  margin-top: 2px; display: -webkit-box; -webkit-line-clamp: 1;
  -webkit-box-orient: vertical; overflow: hidden;
}

.about-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; margin-bottom: 40px; }
.about-card { text-align: center; padding: 28px 20px; background: var(--color-paper); border-radius: 4px; border: 1px solid var(--color-border-soft); }
.about-icon { font-size: 36px; margin-bottom: 12px; }
.about-card h3 { font-family: var(--font-serif); font-size: 20px; color: var(--color-accent); margin-bottom: 10px; }
.about-card p { font-family: var(--font-kai); font-size: 14px; color: var(--color-text-soft); line-height: 1.7; }

.about-note { background: var(--color-paper); padding: 24px 32px; border-left: 4px solid var(--color-gold); border-radius: 0 4px 4px 0; }
.about-note p { font-family: var(--font-kai); color: var(--color-text-soft); line-height: 1.9; }

.chapter {
  background: var(--color-paper); padding: 56px 64px;
  border-radius: 4px; border: 1px solid var(--color-border-soft);
  box-shadow: 0 4px 24px var(--color-shadow);
  margin-bottom: 48px; position: relative;
}

.chapter-meta { text-align: center; margin-bottom: 48px; padding-bottom: 32px; border-bottom: 2px double var(--color-border); }
.volume-tag {
  display: inline-block; padding: 4px 16px;
  background: var(--color-bg-alt); color: var(--color-accent);
  font-family: var(--font-kai); font-size: 14px;
  border-radius: 16px; letter-spacing: 2px; margin-bottom: 16px;
}
.chapter-title { font-size: 38px; font-family: var(--font-serif); color: var(--color-text); letter-spacing: 4px; margin: 16px 0 24px; }
.chapter-info { display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; font-family: var(--font-kai); font-size: 14px; color: var(--color-text-soft); }
.info-item { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.info-key { font-size: 12px; color: var(--color-text-muted); letter-spacing: 1px; }
.info-val { font-size: 14px; color: var(--color-text); }

.chapter-body { font-family: var(--font-serif); font-size: 18px; line-height: 2.1; color: var(--color-text); }
.chapter-body p { margin-bottom: 1.4em; text-indent: 2em; }
.chapter-body h2 {
  font-size: 22px; font-family: var(--font-serif); color: var(--color-accent);
  margin: 2em 0 1em; padding-left: 16px;
  border-left: 4px solid var(--color-accent); font-weight: bold;
}
.chapter-body h3 { font-size: 18px; font-family: var(--font-kai); color: var(--color-text); margin: 1.6em 0 0.8em; font-weight: bold; }
.chapter-body hr { border: none; text-align: center; margin: 2em 0; }
.chapter-body hr::before { content: '※ ※ ※'; color: var(--color-border); letter-spacing: 8px; }
.chapter-body blockquote {
  margin: 1.4em 0; padding: 12px 24px;
  background: var(--color-bg-alt); border-left: 3px solid var(--color-gold);
  color: var(--color-text-soft); font-style: italic;
}
.chapter-body ul { margin: 1em 0 1em 2em; }
.chapter-body li { margin-bottom: 0.4em; line-height: 1.9; }
.chapter-body strong { color: var(--color-accent); font-weight: bold; }
.chapter-body code {
  background: var(--color-bg-alt); padding: 2px 8px;
  border-radius: 3px; font-size: 0.9em;
  font-family: "SF Mono", Monaco, Consolas, monospace;
}

.chapter-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 48px; padding-top: 32px; border-top: 2px double var(--color-border); }
.nav-link {
  display: flex; flex-direction: column; gap: 8px;
  padding: 16px 20px; background: var(--color-bg-alt);
  border-radius: 4px; text-decoration: none; color: inherit;
  transition: all 0.2s; border: 1px solid var(--color-border-soft);
}
.nav-link:hover { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.nav-link:hover .nav-label { color: rgba(255,255,255,0.8); }
.nav-link.next { text-align: right; }
.nav-label { font-size: 13px; color: var(--color-text-muted); font-family: var(--font-kai); letter-spacing: 1px; }
.nav-title { font-size: 16px; font-weight: bold; font-family: var(--font-serif); }

.site-footer {
  margin: 60px 0 32px; padding-top: 32px;
  border-top: 1px solid var(--color-border-soft);
  text-align: center; font-family: var(--font-kai);
  color: var(--color-text-muted); font-size: 14px;
}
.footer-note { margin-top: 6px; font-size: 12px; color: var(--color-text-muted); opacity: 0.7; }

@media (max-width: 768px) {
  body { font-size: 16px; }
  .page { padding: 0 16px; }
  .site-header { flex-direction: column; gap: 16px; }
  .hero { padding: 40px 16px; }
  .hero-title { font-size: 40px; letter-spacing: 8px; margin-right: -8px; text-indent: 8px; }
  .hero-stats { gap: 24px; }
  .stat-num { font-size: 28px; }
  .section { margin: 48px 0; }
  .section-title { font-size: 28px; }
  .chapter { padding: 32px 24px; }
  .chapter-title { font-size: 28px; letter-spacing: 2px; }
  .chapter-body { font-size: 16px; line-height: 1.95; }
  .chapter-info { gap: 16px; }
  .chapter-nav { grid-template-columns: 1fr; }
  .nav-link.next { text-align: left; }
  .volumes-grid { grid-template-columns: 1fr; }
  .chapter-list { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 32px; }
  .chapter-title { font-size: 24px; }
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }

::selection { background: rgba(184, 134, 11, 0.3); color: var(--color-text); }

@media print {
  body { background: white; color: black; }
  .site-header, .site-footer, .chapter-nav, .hero-cta { display: none; }
  .chapter { box-shadow: none; border: none; padding: 0; }
}

/* === 《千年传承》· 一朵云的视角 === */

/* 章节顶部：云的序 */
.cloud-prologue {
  background: linear-gradient(180deg, rgba(184, 134, 11, 0.08), transparent);
  border-left: 3px solid var(--color-gold);
  padding: 18px 24px;
  margin: 24px 0 32px 0;
  border-radius: 0 8px 8px 0;
  position: relative;
}

.cloud-prologue-inner {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-family: var(--font-kai);
  font-size: 16px;
  color: var(--color-text-soft);
  line-height: 1.7;
  font-style: italic;
}

.cloud-icon {
  font-size: 28px;
  line-height: 1;
  flex-shrink: 0;
  color: var(--color-text-muted);
  animation: drift 8s ease-in-out infinite;
}

@keyframes drift {
  0%, 100% { transform: translateX(0) translateY(0); }
  50% { transform: translateX(8px) translateY(-3px); }
}

.cloud-text { padding-top: 4px; }

/* 首页：云的标志 */
.cloud-mark {
  font-family: var(--font-serif);
  font-size: 72px !important;
  color: var(--color-text-muted);
  opacity: 0.6;
}

/* 首页：云的自述 */
.cloud-monologue {
  background: rgba(253, 246, 227, 0.6);
  border: 1px solid var(--color-border-soft);
  border-radius: 4px;
  padding: 20px 28px;
  margin: 28px auto;
  max-width: 720px;
  font-family: var(--font-kai);
  font-size: 16px;
  color: var(--color-text-soft);
  line-height: 2;
  text-align: left;
  position: relative;
}

.cloud-monologue::before {
  content: '☁';
  position: absolute;
  top: -16px;
  left: 24px;
  font-size: 28px;
  background: var(--color-bg);
  padding: 0 8px;
  color: var(--color-text-muted);
}

.cloud-monologue p {
  margin: 4px 0;
}

.cloud-monologue-final {
  margin-top: 12px !important;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border-soft);
  color: var(--color-accent);
  font-style: italic;
}

/* 章节底部：云的跋 */
.cloud-epilogue {
  background: linear-gradient(0deg, rgba(184, 134, 11, 0.06), transparent);
  border-right: 3px solid var(--color-gold);
  padding: 18px 24px;
  margin: 40px 0 24px 0;
  border-radius: 8px 0 0 8px;
  text-align: right;
  font-family: var(--font-kai);
  font-size: 15px;
  color: var(--color-text-soft);
  font-style: italic;
  line-height: 1.8;
}

.cloud-epilogue::after {
  content: '—— 一朵云，仍在临邛上空';
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}