/* ============================================================
   无量光明 - 全站样式
   ============================================================ */

/* ============ 变量 ============ */
:root {
  --bg: #faf8f3;
  --bg-elev: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #f8f5ec;
  --border: #ebe5d8;
  --border-soft: #f0ebdd;
  --text: #2a2620;
  --text-sub: #5a5448;
  --text-dim: #8a8478;
  --text-mute: #b0aa9c;
  --accent: #a8842c;
  --accent-hi: #8a6a1e;
  --accent-dim: #d4b878;
  --accent-soft: #f5efdd;
  --accent-line: #d4bc7a;
  --link: #a8842c;
  --shadow-sm: 0 2px 8px rgba(42, 38, 32, 0.06);
  --shadow-md: 0 8px 24px rgba(42, 38, 32, 0.12);
  --radius: 10px;
}

html.dark {
  --bg: #0b1512;
  --bg-elev: #0f1d18;
  --bg-card: #122019;
  --bg-hover: #16281f;
  --border: #1e3529;
  --border-soft: #172a20;
  --text: #e6e0d0;
  --text-sub: #c8c0b0;
  --text-dim: #a4b0a4;
  --text-mute: #667466;
  --accent: #d4a854;
  --accent-hi: #f0c878;
  --accent-dim: #8a6e34;
  --accent-soft: rgba(212, 168, 84, 0.1);
  --accent-line: rgba(212, 168, 84, 0.3);
  --link: #d4a854;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  transition: background 0.3s, color 0.3s;
}

a { color: var(--link); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hi); }

/* ============ 顶栏 ============ */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(250, 248, 243, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
html.dark .header { background: rgba(11, 21, 18, 0.92); }

.header-inner {
  display: flex;
  align-items: center;
  height: 64px;
  padding: 0 24px;
  gap: 20px;
  max-width: 1480px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  letter-spacing: 1px;
}
.logo i { font-size: 20px; }

.nav-wrap {
  flex: 1;
  min-width: 0;
  position: relative;
  overflow: hidden;
  margin-right: 8px;
}
.nav-wrap::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 40px;
  background: linear-gradient(to right, transparent, var(--bg));
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}
.nav-wrap.scrollable::after { opacity: 0.95; }
html.dark .nav-wrap::after {
  background: linear-gradient(to right, transparent, var(--bg));
}

.main-nav {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 4px 0;
}
.main-nav::-webkit-scrollbar { display: none; }

.main-nav a {
  padding: 7px 14px;
  border-radius: 6px;
  color: var(--text-sub);
  font-size: 14px;
  white-space: nowrap;
  transition: 0.2s;
  flex-shrink: 0;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-scroll-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--accent);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  z-index: 2;
  transition: 0.2s;
}
.nav-scroll-btn:hover { background: var(--accent); color: var(--bg); }
.nav-scroll-btn.right { right: 0; }
.nav-scroll-btn.left { left: 0; }
.nav-wrap.scrollable .nav-scroll-btn { display: flex; }
.nav-scroll-btn.left { display: none !important; }
.nav-wrap.show-left .nav-scroll-btn.left { display: flex !important; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.theme-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.25s;
  flex-shrink: 0;
}
.theme-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.language-selector { position: relative; flex-shrink: 0; }
.language-current {
  display: flex;
  align-items: center;
  padding: 6px 12px;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.25s;
  border: 1px solid var(--border);
  gap: 6px;
  white-space: nowrap;
}
.language-current:hover { border-color: var(--accent); }
.language-flag {
  width: 18px; height: 12px;
  background-size: cover;
  background-position: center;
  border-radius: 2px;
  flex-shrink: 0;
}
.language-name { font-size: 13px; color: var(--text-sub); }
.language-current .fa-chevron-down { font-size: 10px; color: var(--text-mute); }
.language-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  width: 360px;
  max-height: 440px;
  background: var(--bg-elev);
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: 0.3s;
  padding: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  margin-top: 10px;
}
.language-selector.active .language-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.language-regions-container { overflow-y: auto; flex: 1; padding-right: 4px; }
.language-regions-container::-webkit-scrollbar { width: 4px; }
.language-regions-container::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.language-region { margin-bottom: 18px; }
.language-region:last-child { margin-bottom: 0; }
.region-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.region-languages { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 4px; }
.language-option {
  display: flex;
  align-items: center;
  padding: 6px 10px;
  cursor: pointer;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-dim);
  transition: 0.2s;
  gap: 8px;
}
.language-option:hover { background: var(--accent-soft); }
.language-option.active { background: var(--accent-soft); color: var(--accent); }
.language-option .language-flag { width: 16px; height: 12px; }

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: 0.25s;
}
.mobile-menu-btn:hover { color: var(--accent); border-color: var(--accent); }

.mobile-language-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: 0.25s;
}
.mobile-language-toggle:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.mobile-language-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(4px);
}
.mobile-language-modal.active { display: flex; }
.mobile-language-content {
  background: var(--bg-elev);
  width: 92%;
  max-width: 400px;
  max-height: 75vh;
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.mobile-language-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mobile-language-header h3 { color: var(--text); font-size: 16px; font-weight: 500; margin: 0; }
.mobile-language-close { background: none; border: none; color: var(--text-dim); font-size: 20px; cursor: pointer; }
.mobile-language-list { flex: 1; overflow-y: auto; padding: 12px 16px; }
.mobile-language-option {
  display: flex;
  align-items: center;
  padding: 12px 8px;
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  gap: 12px;
}
.mobile-language-option:last-child { border-bottom: none; }
.mobile-language-option.active { background: var(--accent-soft); }
.mobile-language-flag { width: 22px; height: 16px; background-size: cover; background-position: center; border-radius: 2px; }
.mobile-language-name { font-size: 15px; color: var(--text); }

.mobile-drawer {
  position: fixed;
  top: 64px;
  left: 0;
  bottom: 0;
  width: 280px;
  max-width: 80vw;
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  z-index: 99;
  transform: translateX(-100%);
  transition: transform 0.3s;
  overflow-y: auto;
  padding: 20px 16px;
  box-shadow: var(--shadow-md);
}
.mobile-drawer.active { transform: translateX(0); }
.mobile-drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 98;
  opacity: 0;
  visibility: hidden;
  transition: 0.3s;
}
.mobile-drawer-mask.active { opacity: 1; visibility: visible; }
.mobile-drawer .drawer-title {
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--accent-line);
}
.mobile-drawer .drawer-nav { display: flex; flex-direction: column; gap: 2px; margin-bottom: 24px; }
.mobile-drawer .drawer-nav a {
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--text-sub);
  font-size: 15px;
}
.mobile-drawer .drawer-nav a:hover,
.mobile-drawer .drawer-nav a.active { color: var(--accent); background: var(--accent-soft); }

/* ============ 主布局 ============ */
.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  max-width: 1480px;
  margin: 0 auto;
  padding: 32px 32px 60px;
  align-items: start;
}

/* ============ 侧栏 ============ */
.sidebar {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding-right: 6px;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.sidebar-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--accent-line);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-title i { font-size: 13px; }

.tree { list-style: none; padding: 0; margin: 0; }
.tree ul { list-style: none; padding: 0; margin: 0 0 0 14px; border-left: 1px solid var(--border-soft); }
.tree li { position: relative; }
.tree > li > a,
.tree ul a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--text-sub);
  font-size: 13.5px;
  line-height: 1.4;
  transition: 0.2s;
  position: relative;
}
.tree > li > a:hover,
.tree ul a:hover { background: var(--accent-soft); color: var(--accent); }
.tree a.active { background: var(--accent-soft); color: var(--accent); font-weight: 500; }
.tree a.active::before {
  content: '';
  position: absolute;
  left: -1px; top: 6px; bottom: 6px;
  width: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.tree .toggle {
  width: 16px; height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mute);
  font-size: 9px;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.tree .toggle.open { transform: rotate(90deg); }
.tree .toggle.empty { opacity: 0.25; cursor: default; }
.tree .ico { font-size: 11px; color: var(--accent-dim); flex-shrink: 0; }
.tree a.active .ico { color: var(--accent); }
.tree .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree ul { display: none; }
.tree li.open > ul { display: block; }

/* ============ 右侧内容 ============ */
.content-wrap { min-width: 0; max-width: 100%; }

.breadcrumb {
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 6px; opacity: 0.5; }
.breadcrumb .current { color: var(--accent); }

.page-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 14px;
  line-height: 1.3;
  letter-spacing: 0.3px;
}
.page-title::after {
  content: '';
  display: block;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
  margin-top: 14px;
}

.page-meta {
  display: flex;
  gap: 22px;
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 30px;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--border);
  flex-wrap: wrap;
  align-items: center;
}
.page-meta > span {
  display: inline-flex;
  align-items: center;
}
.page-meta i { margin-right: 5px; color: var(--accent); }

/* 朗读条容器：右侧对齐 */
.page-meta-tts {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.content-body {
  font-size: 16.5px;
  line-height: 2;
  color: var(--text);
  word-break: break-word;
}
.content-body p {
  margin: 0 0 18px;
  text-indent: 2em;
  padding: 3px 8px;
  border-radius: 6px;
  transition: background 0.3s;
}
.content-body h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--accent);
  margin: 36px 0 18px;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}
.content-body h3 { font-size: 18px; font-weight: 600; color: var(--accent); margin: 28px 0 14px; }
.content-body blockquote {
  margin: 22px 0;
  padding: 18px 22px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
}
.content-body blockquote p { text-indent: 0; margin: 5px 0; color: var(--text-dim); }
.content-body a { color: var(--accent); border-bottom: 1px dashed var(--accent-line); }
.content-body a:hover { border-bottom-style: solid; }
.content-body img { max-width: 100%; height: auto; border-radius: 8px; margin: 18px 0; }
.content-body ul, .content-body ol { padding-left: 2em; margin: 0 0 18px; }
.content-body li { margin-bottom: 6px; }
.content-body p.simple-tts-active { background: var(--accent-soft); }

.page-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}
.page-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-sub);
  transition: 0.25s;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  max-width: 100%;
}
.page-nav a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.page-nav a.prev { justify-self: start; max-width: 340px; }
.page-nav a.next { justify-self: end; max-width: 340px; }
.page-nav .center { display: inline-flex; align-items: center; gap: 8px; }
.page-nav .center a { color: var(--accent); border-color: var(--accent-line); }
.page-nav .t { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }

.related-section {
  margin-top: 52px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.related-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
  flex-wrap: wrap;
}
.related-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 1px;
}
.related-title i { color: var(--accent); font-size: 16px; }
.related-count { font-size: 13px; color: var(--text-mute); }

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}
.article-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.5;
  transition: 0.22s;
  position: relative;
  overflow: hidden;
  min-height: 48px;
}
.article-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform 0.22s;
}
.article-card:hover {
  border-color: var(--accent-line);
  color: var(--accent);
  transform: translateX(3px);
  background: var(--bg-hover);
}
.article-card:hover::before { transform: scaleY(1); }
.article-card .num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
}
.article-card .card-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============ 页脚 ============ */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px;
  background: var(--bg-elev);
  text-align: center;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 26px;
  margin-bottom: 16px;
}
.footer-links a { color: var(--text-sub); font-size: 14px; }
.footer-links a:hover { color: var(--accent); }
.footer-links i { margin-right: 5px; color: var(--accent); }
.footer-copy { font-size: 13px; color: var(--text-sub); }
.footer-copy a{ font-size: 13px; color: var(--text-sub); }

.back-to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: 0.3s;
  z-index: 90;
  box-shadow: var(--shadow-md);
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--accent); color: var(--bg); transform: translateY(-3px); }

/* ============ 朗读条（紧凑） ============ */
.simple-tts-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  background: transparent;
  border: none;
}

.simple-tts-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  background: transparent;
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 14px;
  font-size: 12px;
  line-height: 1.4;
  cursor: pointer;
  transition: 0.2s;
  font-family: inherit;
  white-space: nowrap;
}
.simple-tts-btn i { font-size: 11px; }
.simple-tts-btn:hover {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}
.simple-tts-btn[data-action="play"] {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}
.simple-tts-btn[data-action="play"]:hover {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.simple-tts-speed {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 14px;
  font-size: 11.5px;
  color: var(--text-mute);
  background: transparent;
}
.simple-tts-speed i { color: var(--accent); font-size: 10px; }
.simple-tts-speed input[type="range"] {
  width: 50px;
  height: 3px;
  accent-color: var(--accent);
  cursor: pointer;
}
.simple-tts-speed span {
  min-width: 30px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: 11px;
}

/* ============ 分类页 ============ */
.cat-section { margin-bottom: 44px; }
.cat-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 16px;
}
.cat-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 1px;
}
.cat-title i { color: var(--accent); font-size: 16px; }

.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}
.cat-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-sub);
  font-size: 14.5px;
  transition: 0.22s;
  min-height: 52px;
  position: relative;
  overflow: hidden;
}
.cat-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform 0.22s;
}
.cat-card:hover {
  border-color: var(--accent-line);
  color: var(--accent);
  transform: translateX(3px);
  background: var(--bg-hover);
}
.cat-card:hover::before { transform: scaleY(1); }
.cat-card i { color: var(--accent-dim); font-size: 14px; flex-shrink: 0; }
.cat-card:hover i { color: var(--accent); }
.cat-card span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.empty-note {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-mute);
  font-size: 14px;
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: 10px;
}

/* ============ 首页 ============ */
.home-main-wrap {
  display: block;
  width: 100%;
}
.home-main-wrap .container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

.hero {
  text-align: center;
  padding: 60px 0 40px;
}
.hero-title {
  font-size: 42px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 16px;
  letter-spacing: 8px;
  line-height: 1.2;
}
.hero-sub {
  font-size: 15px;
  color: var(--text-sub);
  margin: 0 0 8px;
  letter-spacing: 3px;
}
.hero-desc {
  font-size: 13.5px;
  color: var(--text-dim);
  margin: 0 auto 32px;
  line-height: 1.9;
  max-width: 620px;
}
.hero-search {
  display: flex;
  align-items: center;
  gap: 0;
  max-width: 560px;
  margin: 0 auto 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 4px 4px 4px 20px;
  box-shadow: var(--shadow-sm);
  transition: 0.25s;
}
.hero-search:focus-within {
  border-color: var(--accent-line);
  box-shadow: 0 4px 16px rgba(168, 132, 44, 0.1);
}
.hero-search i { color: var(--text-mute); font-size: 14px; flex-shrink: 0; }
.hero-search input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  padding: 10px 14px;
}
.hero-search input::placeholder { color: var(--text-mute); }
.hero-search button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 9px 22px;
  border-radius: 20px;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: 0.2s;
  flex-shrink: 0;
}
.hero-search button:hover { background: var(--accent-hi); }

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 36px;
  position: relative;
}
.hero-stat + .hero-stat::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--border);
}
.hero-stat-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.hero-stat-label {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-top: 4px;
  letter-spacing: 1px;
}

.section { padding: 48px 0; }
.section-head { text-align: center; margin-bottom: 36px; }
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 10px;
  letter-spacing: 3px;
}
.section-sub { font-size: 13.5px; color: var(--text-dim); letter-spacing: 1px; }

.about-text {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 2.1;
}
.about-text p { margin: 0 0 10px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 36px;
}
.feature-card {
  text-align: center;
  padding: 30px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: 0.25s;
}
.feature-card:hover {
  border-color: var(--accent-line);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.feature-icon {
  width: 44px; height: 44px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.feature-title { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.feature-desc { font-size: 12.5px; color: var(--text-dim); line-height: 1.6; }

.home-cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.home-cat-card {
  display: block;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: 0.22s;
  position: relative;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
}
.home-cat-card:hover {
  border-color: var(--accent-line);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  color: var(--accent);
}
.home-cat-card .cat-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}
.home-cat-card:hover .cat-name { color: var(--accent); }
.home-cat-card .cat-desc {
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 10px;
  min-height: 32px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.home-cat-card .cat-count {
  font-size: 11.5px;
  color: var(--text-mute);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.5px;
}

.art-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.art-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: 0.18s;
  min-width: 0;
}
.art-card:hover {
  border-color: var(--accent-line);
  background: var(--bg-hover);
  transform: translateX(2px);
}
.art-num {
  flex-shrink: 0;
  width: 22px; height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
}
.art-title {
  flex: 1;
  min-width: 0;
  font-size: 13.5px;
  color: var(--text-sub);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.2s;
}
.art-card:hover .art-title { color: var(--accent); }

.history-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 26px;
  position: relative;
}
.history-clear {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: 0.2s;
}
.history-clear:hover { color: #c96c6c; border-color: #e0b4b4; }

/* ============ 响应式 ============ */
@media (max-width: 1200px) {
  .layout { grid-template-columns: 240px 1fr; gap: 28px; padding: 28px 20px 50px; }
}

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 20px 16px 50px;
  }
  .sidebar { display: none !important; }

  .nav-wrap { display: none; }

  .header-inner { padding: 0 16px; gap: 8px; }
  .header-actions { margin-left: auto; }

  .language-selector { display: none !important; }
  .mobile-language-toggle { display: flex; }
  .mobile-menu-btn { display: flex; }

  .page-title { font-size: 24px; }
  .content-body { font-size: 16px; }
  .article-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
  .page-nav { grid-template-columns: 1fr; gap: 10px; }
  .page-nav a.prev, .page-nav a.next { max-width: 100%; justify-self: stretch; }
  .page-nav .center { order: -1; }

  /* page-meta 换行 */
  .page-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .page-meta-tts {
    margin-left: 0;
    width: 100%;
  }

  .home-main-wrap .container { padding: 0 20px; }
  .hero { padding: 40px 0 30px; }
  .hero-title { font-size: 32px; letter-spacing: 4px; }
  .hero-sub { font-size: 14px; letter-spacing: 2px; }
  .hero-stat { padding: 0 20px; }
  .hero-stat-num { font-size: 20px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .home-cat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .art-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 36px 0; }
  .section-title { font-size: 19px; letter-spacing: 2px; }
}

@media (max-width: 480px) {
  .header-inner { padding: 0 14px; }
  .hero-title { font-size: 26px; letter-spacing: 3px; }
  .hero-desc { font-size: 12.5px; }
  .hero-search { padding-left: 16px; }
  .hero-search button { padding: 8px 16px; font-size: 13px; }
  .hero-stat { padding: 0 12px; }
  .hero-stat-num { font-size: 18px; }
  .hero-stat-label { font-size: 11.5px; }
  .feature-grid { grid-template-columns: 1fr; }
  .home-cat-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .art-grid { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: 1fr; }

  .simple-tts-speed input[type="range"] { width: 40px; }
  .simple-tts-btn { font-size: 11.5px; padding: 3px 8px; }
}
/* ============ 搜索页 ============ */
.search-header {
  text-align: center;
  padding: 48px 0 36px;
}
.search-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 24px;
  letter-spacing: 1px;
}
.search-kw {
  color: var(--accent);
}
.search-meta {
  font-size: 13.5px;
  color: var(--text-dim);
  margin-top: 16px;
}
.search-meta strong {
  color: var(--accent);
  font-weight: 700;
  font-size: 16px;
  margin: 0 3px;
}

@media (max-width: 480px) {
  .search-header { padding: 28px 0 24px; }
  .search-title { font-size: 20px; }
}
/* ============ 简介页 ============ */
.about-hero {
  text-align: center;
  padding: 60px 0 40px;
}
.about-hero-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 14px;
  letter-spacing: 6px;
}
.about-hero-sub {
  font-size: 14px;
  color: var(--text-dim);
  letter-spacing: 2px;
  margin: 0;
}

/* 简介盒子 */
.about-box {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.about-box .about-text {
  text-align: left;
  max-width: 100%;
}
.about-box .about-text p {
  color: var(--text-sub);
  line-height: 2.1;
  margin: 0 0 16px;
  font-size: 15px;
}
.about-box .about-text p:last-child { margin-bottom: 0; }
.about-box .about-text a {
  color: var(--accent);
  border-bottom: 1px dashed var(--accent-line);
}

/* 收录范围 */
.about-list {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.about-list-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: 0.22s;
}
.about-list-item:hover {
  border-color: var(--accent-line);
  transform: translateX(3px);
}
.about-list-item i {
  color: var(--accent-dim);
  font-size: 16px;
  margin-top: 2px;
  flex-shrink: 0;
}
.about-list-item:hover i { color: var(--accent); }
.about-list-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.about-list-desc {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* 使用步骤 */
.about-steps {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.about-step {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 18px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: 0.22s;
}
.about-step:hover {
  border-color: var(--accent-line);
  background: var(--bg-hover);
}
.step-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
}
.step-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.step-desc {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.7;
}

/* 联系 */
.about-contact {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.about-contact > p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 2;
  margin-bottom: 24px;
}
.contact-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.contact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-sub);
  font-size: 14px;
  transition: 0.22s;
}
.contact-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}
.contact-item i { font-size: 15px; }

/* 响应式 */
@media (max-width: 960px) {
  .about-hero { padding: 36px 0 28px; }
  .about-hero-title { font-size: 28px; letter-spacing: 4px; }
  .about-box { padding: 24px 22px; }
  .about-list { grid-template-columns: 1fr; }
  .about-step { padding: 16px 18px; }
}
@media (max-width: 480px) {
  .about-hero-title { font-size: 24px; letter-spacing: 3px; }
  .about-hero-sub { font-size: 12.5px; }
  .contact-links { flex-direction: column; }
  .contact-item { justify-content: center; }
}