/* 屏幕预览 */
:root {
  --bg: #1a1a1c;
  --card: #252528;
  --text: #e8e6e3;
  --muted: #8a8782;
  --accent: #c4a574;
}
* { box-sizing: border-box; }
body {
  font-family: "Songti SC", "Noto Serif SC", "Georgia", serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 2rem 1.5rem 4rem;
  line-height: 1.65;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
}
.book-header {
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(196, 165, 116, 0.35);
}
.book-header h1 { font-size: 1.85rem; font-weight: 600; margin: 0 0 0.75rem; color: var(--accent); }
.meta { font-size: 0.88rem; color: var(--muted); margin: 0.25rem 0; }
.chapter { margin-bottom: 3.5rem; }
.chapter.flat-album { margin-bottom: 2rem; }
.chapter.flat-album .entry-title {
  font-size: 1.15rem;
  color: var(--accent);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding-bottom: 0.5rem;
}
.chapter-title {
  font-size: 1.35rem;
  color: var(--accent);
  margin: 0 0 1.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.entry { margin-bottom: 2.75rem; }
.entry-title { font-size: 1.05rem; font-weight: 600; margin: 0 0 1rem; color: #f0ebe4; }
.spread {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2rem;
  padding: 1.25rem;
  background: var(--card);
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.06);
}
.spread figure { margin: 0; position: relative; }
.spread img {
  width: 100%;
  height: auto;
  vertical-align: middle;
  border-radius: 4px;
}
/* 半透明水印（--watermark 生成，位置内联） */
.wm {
  position: absolute;
  z-index: 2;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.32);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}
.spread-text { font-size: 0.92rem; color: #d4d0c8; }
.spread-text p { margin: 0 0 0.65rem; }
.spread-text p:last-child { margin-bottom: 0; }
.no-caption { color: var(--muted); font-style: italic; }

.layout-hero .spread-visual { max-width: 100%; }
.layout-hero .entry-title { font-size: 1.15rem; }

.layout-split {
  grid-template-columns: 1.15fr 1fr;
  align-items: start;
}
@media (max-width: 720px) {
  .layout-split { grid-template-columns: 1fr; }
}
.layout-invert {
  grid-template-columns: 1fr 1.12fr;
  align-items: start;
}
.layout-invert .spread-visual { order: 2; }
.layout-invert .spread-text { order: 1; }
@media (max-width: 720px) {
  .layout-invert { grid-template-columns: 1fr; }
  .layout-invert .spread-visual, .layout-invert .spread-text { order: unset; }
}

.layout-stack {
  grid-template-columns: 1fr;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}
/* 长文 + 上图下文：拉满内容区，避免窄栏堆字 */
.layout-stack-wide {
  max-width: none;
  width: 100%;
}
.layout-full .spread-visual { margin: -0.25rem; }
.layout-full { padding: 0.65rem; }

/* 同条目剩余多张：两图一页左右并列 */
.layout-dual {
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}
.layout-dual .spread-visual { min-width: 0; }
.layout-dual img {
  width: 100%;
  height: auto;
  object-fit: contain;
  vertical-align: middle;
}
@media (max-width: 720px) {
  .layout-dual { grid-template-columns: 1fr; }
}

.layout-text-only .spread-text.full { max-width: 40rem; }

.book-disclaimer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(196, 165, 116, 0.35);
  font-size: 0.88rem;
  color: var(--muted);
}
.disclaimer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.75rem;
}
.disclaimer-list {
  margin: 0;
  padding-left: 1.25rem;
  line-height: 1.6;
}
.disclaimer-list li { margin-bottom: 0.35rem; }
.qrcode-section {
  margin-top: 1.5rem;
  text-align: center;
}
.qrcode-text {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}
.qrcode-img {
  display: block;
  max-width: 180px;
  height: auto;
  margin: 0 auto;
  border-radius: 6px;
}

.site-nav { margin-bottom: 1.25rem; font-size: 0.9rem; }
.site-nav a { color: #c4a574; text-decoration: none; letter-spacing: 0.05em; }
.site-nav a:hover { text-decoration: underline; }
.cta-banner {
  margin: 0 0 2.25rem;
  padding: 0.8rem 1.1rem;
  border: 1px dashed rgba(196,165,116,0.55);
  border-radius: 6px;
  font-size: 0.9rem;
  color: #d4d0c8;
  background: rgba(196,165,116,0.08);
}
.cta-banner b { color: #c4a574; }