/* =====================================================================
 * Bookgod 样式表
 * 主题：纸墨书卷（日间 / 护眼 / 夜间，右上角设置里切换）
 * 配色修改：改下面三个主题块里的变量即可
 * ===================================================================== */

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

:root, html[data-theme="light"] {
  --bg: #f7f4ee; --card: #fffdf8; --ink: #2b2721; --muted: #8b8577; --line: #e8e2d4;
  --accent: #2f6d5e; --accent-ink: #fff; --accent-soft: #e3efe9;
  --shadow: 0 1px 2px rgba(43,39,33,.06), 0 10px 30px -18px rgba(43,39,33,.28);
}
html[data-theme="sepia"] {
  --bg: #efe3c8; --card: #f9f1dd; --ink: #463a28; --muted: #93805f; --line: #e0d0ab;
  --accent: #8a5a2b; --accent-ink: #fff; --accent-soft: #ead9b5;
  --shadow: 0 1px 2px rgba(70,58,40,.08), 0 10px 30px -18px rgba(70,58,40,.3);
}
html[data-theme="dark"] {
  --bg: #131519; --card: #1c1f26; --ink: #d8d4ca; --muted: #80838d; --line: #2a2e38;
  --accent: #5aa392; --accent-ink: #10201b; --accent-soft: #223030;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 34px -18px rgba(0,0,0,.65);
}

.wrap { max-width: 1080px; margin: 0 auto; padding-inline: 20px; }
.muted { color: var(--muted); }

/* ---------------- 顶栏 / 导航 ---------------- */
header.site {
  position: sticky; top: 0; z-index: 20;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.bar { display: flex; align-items: center; gap: 12px; min-height: 58px; }
.logo {
  font-family: Georgia, "Songti SC", SimSun, serif;
  font-size: 21px; font-weight: 700; letter-spacing: .05em;
  color: var(--accent); white-space: nowrap;
}
.slogan { font-size: 12.5px; color: var(--muted); white-space: nowrap; }

.nav { display: flex; align-items: center; gap: 2px; }
.nav > a, .nav summary {
  padding: 6px 12px; border-radius: 8px; font-size: 14.5px;
  color: var(--ink); cursor: pointer; list-style: none; user-select: none;
  white-space: nowrap;
}
.nav summary::-webkit-details-marker { display: none; }
.nav > a:hover, .nav summary:hover, details.dropdown[open] > summary { background: var(--accent-soft); color: var(--accent); }
.nav > a.on, .nav summary.on { color: var(--accent); font-weight: 600; }
.nav .cnt { margin-inline-start: 6px; font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; }
.nav > a.on .cnt, .nav summary.on .cnt { color: var(--accent); }

details.dropdown { position: relative; }
details.dropdown > ul {
  position: absolute; top: calc(100% + 8px); inset-inline-start: 0; z-index: 50;
  margin: 0; padding: 6px; list-style: none; min-width: 172px; max-height: 340px; overflow: auto;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow);
}
details.dropdown.lang > ul { inset-inline-start: auto; inset-inline-end: 0; }
details.dropdown li a, details.dropdown li button {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  width: 100%; padding: 8px 12px; border: 0; border-radius: 8px;
  background: none; color: var(--ink); font-size: 14px; text-align: start; cursor: pointer;
}
details.dropdown li a:hover, details.dropdown li button:hover { background: var(--accent-soft); color: var(--accent); }
details.dropdown li button.on { color: var(--accent); font-weight: 600; }
details.dropdown .cnt {
  min-width: 22px; text-align: center; font-size: 12px; color: var(--muted);
  background: var(--accent-soft); border-radius: 999px; padding: 0 7px;
}
.lang summary { display: flex; align-items: center; gap: 5px; font-size: 13.5px; white-space: nowrap; }

.search { flex: 1 1 auto; max-width: 320px; margin-inline-start: auto; }
.search input {
  width: 100%; padding: 8px 14px;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); color: var(--ink); outline: none; font-size: 13.5px;
}
.search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* ---------------- 分类筛选 ---------------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 18px 0 4px; }
.chip {
  border: 1px solid var(--line); background: var(--card); color: var(--muted);
  padding: 5px 14px; border-radius: 999px; font-size: 13.5px;
  transition: color .15s ease, border-color .15s ease;
}
.chip:hover { color: var(--accent); border-color: var(--accent); }
.chip.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.chip .n { margin-inline-start: 6px; font-size: 11.5px; opacity: .7; font-variant-numeric: tabular-nums; }

/* ---------------- 书架卡片 ---------------- */
.grid {
  display: grid; gap: 16px; padding: 16px 0 40px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.card {
  display: flex; gap: 14px; padding: 14px;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 2px 4px rgba(0,0,0,.06), 0 16px 36px -16px rgba(0,0,0,.3); }
.card-b { flex: 1; min-width: 0; }
.card h3 { margin: 2px 0 6px; font-size: 16.5px; }
.card .meta { margin: 0 0 8px; font-size: 12.5px; color: var(--muted); }
.card .meta .st { color: var(--accent); }
.card .intro {
  margin: 0; font-size: 13px; color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.badge {
  display: inline-block; margin-inline-start: 6px; vertical-align: 2px;
  font-size: 11px; padding: 1px 8px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent); font-weight: 500;
}
.empty { text-align: center; color: var(--muted); padding: 60px 0; }

/* ---------------- 封面（无图时自动渐变 + 竖排书名） ---------------- */
.cover {
  flex: 0 0 96px; height: 128px; border-radius: 8px; overflow: hidden;
  display: flex; align-items: center; justify-content: center; position: relative;
}
.cover .t {
  writing-mode: vertical-rl; max-height: 106px; overflow: hidden;
  font-family: Georgia, "Songti SC", SimSun, serif;
  color: #fff; font-size: 18px; letter-spacing: .16em;
  text-shadow: 0 1px 6px rgba(0,0,0,.3);
}
.cover img { width: 100%; height: 100%; object-fit: cover; }

/* ---------------- 详情页 ---------------- */
.back { display: inline-block; margin-block-start: 18px; color: var(--muted); font-size: 14px; }
.back:hover { color: var(--accent); }
.book-head { display: flex; gap: 24px; padding: 18px 0 10px; }
.book-head .cover { flex-basis: 132px; height: 176px; }
.book-head .cover .t { font-size: 24px; }
.b-info { flex: 1; min-width: 0; }
.b-info h1 { margin: 4px 0 12px; font-size: 26px; font-family: Georgia, "Songti SC", SimSun, serif; }
.b-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 0 0 12px; color: var(--muted); font-size: 13.5px; }
.b-meta b { font-weight: 600; color: var(--ink); opacity: .75; margin-inline-end: 4px; }
.b-intro { max-width: 640px; font-size: 14.5px; margin: 0; }
.b-tags { margin: 10px 0 0; }
.tag {
  display: inline-block; margin-inline-end: 6px; padding: 2px 10px;
  border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12px;
}
.b-actions { margin-block-start: 18px; display: flex; gap: 10px; flex-wrap: wrap; }

.panel {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); margin: 18px 0 46px;
}
.panel.pad { padding: 26px; margin-block-start: 24px; }
.panel-h { display: flex; align-items: baseline; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.panel-h h2 { margin: 0; font-size: 16px; }
.panel-h .cnt { margin-inline-start: auto; color: var(--muted); font-size: 12.5px; }

/* 播放器：有声书挂音频，短剧 / 电影挂视频（详情页里目录上方那一块） */
.media-box { padding: 18px; display: flex; justify-content: center; }
.player { width: 100%; max-width: 880px; border-radius: 10px; background: #000; }
audio.player { max-width: 640px; background: var(--card); }
.ch-list { list-style: none; margin: 0; padding: 6px 8px; max-height: 460px; overflow: auto; }
.ch-list li a {
  display: flex; align-items: baseline; gap: 10px;
  padding: 9px 12px; border-radius: 8px; font-size: 14px;
}
.ch-list li a:hover { background: var(--accent-soft); }
.ch-list li a.on { color: var(--accent); font-weight: 600; }
.ch-list .no { color: var(--muted); font-size: 12px; min-width: 34px; text-align: end; font-variant-numeric: tabular-nums; }
.msg { padding: 6px 18px 16px; }
.more { margin: 4px 12px 14px; }

/* ---------------- 阅读页 ---------------- */
.reader-h .bar { min-height: 50px; gap: 10px; }
.r-book { font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.r-pos { color: var(--muted); font-size: 12.5px; white-space: nowrap; }
.bar .spacer { flex: 1; }
.reader-h .back { margin: 0; }

/* 顶部进度条：贴在阅读顶栏下沿 */
.rprogress {
  position: sticky; top: 50px; z-index: 19; height: 3px;
  background: var(--line);
}
.rprogress i { display: block; height: 100%; width: 0; background: var(--accent); }

.reader { max-width: 760px; margin: 0 auto; padding: 26px 22px 60px; }
.ch-title {
  font-family: Georgia, "Songti SC", SimSun, serif;
  font-size: 22px; text-align: center; margin: 6px 0 24px; color: var(--ink);
}
.content { font-family: Georgia, "Songti SC", SimSun, serif; font-size: 18px; line-height: 1.95; }
.content p { margin: 0 0 1.1em; text-indent: 2em; }
.pager { display: flex; gap: 12px; margin-top: 30px; }
.pager .btn { flex: 1; }

.btn {
  border: 0; border-radius: 10px; padding: 9px 22px; font-size: 15px;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
}
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: var(--card); border: 1px solid var(--line); color: var(--ink); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn.sm { padding: 5px 12px; font-size: 13px; border-radius: 8px; }
.btn[disabled] { opacity: .45; cursor: default; pointer-events: none; }

/* ---------------- 抽屉（目录 / 设置） ---------------- */
.drawer {
  position: fixed; top: 0; bottom: 0; inset-inline-end: 0; z-index: 40;
  width: min(340px, 88vw);
  background: var(--card); border-inline-start: 1px solid var(--line);
  box-shadow: 0 0 40px -18px rgba(0,0,0,.4);
  transform: translateX(100%); direction: ltr; /* 抽屉动画方向固定 */
  display: none; flex-direction: column;
}
html[dir="rtl"] .drawer { transform: translateX(-100%); }
.drawer.open { display: flex; transform: none; transition: transform .22s ease; }
.drawer h2 {
  display: flex; align-items: center; gap: 8px;
  margin: 0; padding: 16px 18px; font-size: 15px; border-bottom: 1px solid var(--line);
}
.drawer h2 .cnt { color: var(--muted); font-size: 12px; font-weight: 400; }
.drawer .close { margin-inline-start: auto; border: 0; background: none; color: var(--muted); font-size: 17px; padding: 2px 6px; }
.drawer .close:hover { color: var(--accent); }
.drawer ol { list-style: none; margin: 0; padding: 8px; overflow-y: auto; flex: 1; }
#toc-list li a { display: block; padding: 9px 12px; border-radius: 8px; font-size: 13.5px; }
#toc-list li a:hover { background: var(--accent-soft); }
#toc-list li a.on { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.set-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; border-bottom: 1px solid var(--line); font-size: 14px;
}
.set-row .opts { display: flex; align-items: center; gap: 8px; }
.fval { min-width: 26px; text-align: center; color: var(--muted); font-variant-numeric: tabular-nums; }
.themes button {
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  border-radius: 8px; padding: 6px 12px; font-size: 13px;
}
.themes button:hover { border-color: var(--accent); color: var(--accent); }
.themes button.on { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.mask { position: fixed; inset: 0; z-index: 30; background: rgba(0,0,0,.32); display: none; border: 0; }
.mask.open { display: block; }

/* ---------------- 首页：最近阅读 / 排序条 ---------------- */
.recent { padding: 4px 8px 8px; margin-block-start: 20px; }
.recent-row {
  display: flex; gap: 10px; padding: 12px 6px 6px;
  overflow-x: auto; scroll-snap-type: x proximity;
}
.rcard {
  flex: 0 0 132px; scroll-snap-align: start;
  display: flex; flex-direction: column; gap: 8px; padding: 9px;
  border: 1px solid transparent; border-radius: 12px;
}
.rcard:hover { background: var(--accent-soft); border-color: var(--line); }
.rcard .cover { flex: none; width: 100%; height: 112px; }
.rcard h3 {
  margin: 0; font-size: 13.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.rcard .meta { margin: 0; font-size: 12px; color: var(--muted); }

.shelf-bar { display: flex; align-items: center; gap: 10px; padding: 4px 2px 0; }
.shelf-bar .cnt { color: var(--muted); font-size: 13px; }
.shelf-bar .sort {
  margin-inline-start: auto; padding: 5px 10px; font: inherit; font-size: 13px;
  color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 8px;
}
.shelf-bar .sort:focus { border-color: var(--accent); outline: none; }

/* ---------------- 首页：介绍 + 栏目入口 ---------------- */
.hero { padding: 40px 0 4px; }
.hero h1 {
  margin: 0 0 10px; font-size: 34px; letter-spacing: .04em;
  font-family: Georgia, "Songti SC", SimSun, serif;
}
.hero .about { margin: 0 0 8px; max-width: 760px; color: var(--muted); font-size: 14.5px; line-height: 1.9; }
.hero .cnt { color: var(--muted); font-size: 13px; }
.sec-h { margin: 30px 0 0; font-size: 17px; }
.grid.sections { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.scard {
  display: block; padding: 14px 16px;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
}
.scard:hover { border-color: var(--accent); }
.scard .s-h { display: flex; align-items: baseline; gap: 10px; }
.scard .s-h h3 { margin: 0; font-size: 16px; color: var(--ink); }
.scard .s-h .cnt { margin-inline-start: auto; color: var(--muted); font-size: 12.5px; font-variant-numeric: tabular-nums; }
.scard .covers { display: flex; gap: 8px; min-height: 68px; padding: 12px 0; }
.scard .covers .cover { flex: 0 0 48px; width: 48px; height: 68px; border-radius: 6px; }
.scard .covers .cover .t { font-size: 11px; letter-spacing: .1em; max-height: 60px; }
.scard .go { margin: 0; font-size: 13px; color: var(--accent); }

/* 栏目书架页标题 */
.shelf-title { margin: 26px 0 0; font-size: 22px; font-family: Georgia, "Songti SC", SimSun, serif; }

/* ---------------- 页脚 / 错误条 ---------------- */
footer.site { border-top: 1px solid var(--line); margin-block-start: 30px; padding: 22px 0 34px; }
footer.site p { margin: 0; color: var(--muted); font-size: 12.5px; }
.page-error {
  position: fixed; bottom: 18px; inset-inline-start: 50%; transform: translateX(-50%); z-index: 99;
  max-width: 86vw; padding: 10px 18px; border-radius: 10px; font-size: 13px;
  background: #3a1f1a; color: #ffd9d0; box-shadow: var(--shadow);
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 760px) {
  .slogan { display: none; }
  .logo { font-size: 18px; }
  .bar { gap: 8px; flex-wrap: wrap; }
  /* 导航挪到整行，五个栏目挤在一行会把下拉菜单顶歪 */
  .nav { order: 5; width: 100%; flex-wrap: wrap; padding-bottom: 6px; }
  .nav > a, .nav summary { padding: 6px 8px; }
  .grid { grid-template-columns: 1fr; }
  .book-head { gap: 16px; }
  .book-head .cover { flex-basis: 96px; height: 128px; }
  .book-head .cover .t { font-size: 18px; }
  .b-info h1 { font-size: 21px; }
  .reader { padding: 18px 16px 50px; }
}
@media (max-width: 560px) {
  .search { max-width: none; }
  .lang summary { font-size: 0; gap: 0; }
  .lang summary::before { content: "🌐"; font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}