:root {
  --bg: #f4f1ea;
  --paper: #fffdf8;
  --paper-2: #faf7f0;
  --ink: #2e302d;
  --muted: #7c7a73;
  --line: #ddd7cc;
  --accent: #7f8f84;
  --accent-deep: #63746a;
  --danger: #a46f6f;
  --reader-font-size: 19px;
  --reader-line-height: 2.05;
  --reader-gap: 1.05em;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; }
button { color: inherit; }
a { color: var(--accent-deep); }
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: max(10px, env(safe-area-inset-top)) 16px 10px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(18px) saturate(120%);
  -webkit-backdrop-filter: blur(18px) saturate(120%);
}
.icon-btn {
  min-width: 40px;
  min-height: 40px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
}
.icon-btn:active { background: #0000000a; }
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  text-align: left;
}
.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid #cfc6b8;
  border-radius: 11px;
  background: #f9f5ed;
  font-family: "Songti SC", "STSong", serif;
  font-size: 21px;
}
.brand b { display: block; font-size: 16px; letter-spacing: .08em; }
.brand small { display: block; margin-top: 1px; color: var(--muted); font-size: 10px; font-weight: 500; }
.top-actions { margin-left: auto; display: flex; gap: 2px; }
.app-shell { width: min(1080px, 100%); margin: 0 auto; padding: 26px 22px 80px; }
.hero { padding: 42px 0 24px; }
.hero-kicker { color: var(--accent-deep); font-weight: 650; letter-spacing: .12em; font-size: 13px; }
.hero h1 { margin: 8px 0 10px; font-family: "Songti SC", "STSong", serif; font-size: clamp(30px, 6vw, 52px); font-weight: 650; letter-spacing: .04em; }
.hero p { max-width: 680px; margin: 0; color: var(--muted); line-height: 1.8; }
.search-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 9px 9px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: 0 10px 32px #4e493f0d;
}
.search-card input {
  min-width: 0;
  flex: 1;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--ink);
  font-size: 16px;
}
.primary-btn, .soft-btn {
  border: 0;
  border-radius: 12px;
  padding: 11px 16px;
  cursor: pointer;
}
.primary-btn { background: var(--accent); color: white; font-weight: 650; }
.soft-btn { background: #ebe7df; color: var(--ink); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 12px; margin: 34px 0 14px; }
.section-head h2 { margin: 0; font-size: 20px; }
.section-head p { margin: 0; color: var(--muted); font-size: 13px; }
.category-tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
.category-tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 13px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.tab.active { background: #e5e7e0; border-color: #d3d9d1; color: #465249; }
.book-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.book-card {
  position: relative;
  min-height: 142px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: var(--paper);
  cursor: pointer;
  overflow: hidden;
  text-align: left;
}
.book-card::after {
  content: "";
  position: absolute;
  width: 84px;
  height: 84px;
  right: -26px;
  bottom: -28px;
  border: 1px solid #d8d0c3;
  border-radius: 50%;
  opacity: .55;
}
.book-card:active { transform: translateY(1px); }
.book-card .tag { color: var(--accent-deep); font-size: 12px; }
.book-card h3 { margin: 12px 0 6px; font-family: "Songti SC", "STSong", serif; font-size: 20px; font-weight: 650; }
.book-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
.book-card .count { position: absolute; left: 18px; bottom: 16px; color: #99948a; font-size: 11px; }
.notice {
  margin-top: 24px;
  padding: 14px 16px;
  border: 1px solid #ded9d0;
  border-radius: 14px;
  background: #f7f4ee;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}
.page-head { margin-bottom: 22px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; color: var(--muted); font-size: 13px; }
.breadcrumb button { padding: 0; border: 0; background: none; color: var(--accent-deep); cursor: pointer; }
.page-head h1 { margin: 0 0 8px; font-family: "Songti SC", "STSong", serif; font-size: clamp(28px, 5vw, 42px); }
.page-head .meta { color: var(--muted); font-size: 13px; line-height: 1.7; }
.chapter-list { overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: var(--paper); }
.chapter-row {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 0;
  border-bottom: 1px solid #ebe6de;
  background: transparent;
  cursor: pointer;
  text-align: left;
}
.chapter-row:last-child { border-bottom: 0; }
.chapter-row small { color: var(--muted); }
.chapter-row .arrow { color: #aaa399; }
.result-list { margin-top: 18px; border-top: 1px solid var(--line); }
.result {
  padding: 18px 2px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}
.result .where { margin-bottom: 7px; color: var(--accent-deep); font-size: 13px; }
.result .snippet { color: #4a4b48; font-family: "Songti SC", "STSong", serif; font-size: 17px; line-height: 1.8; }
.result mark { padding: 0 .08em; border-radius: 3px; background: #d9c8ad88; color: inherit; }
.reader-shell { width: min(820px, 100%); margin: 0 auto; }
.reader-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--paper-2);
  overflow-x: auto;
}
.reader-toolbar button, .reader-toolbar a {
  flex: 0 0 auto;
  border: 0;
  border-radius: 10px;
  padding: 8px 11px;
  background: transparent;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
}
.reader-toolbar button.active { background: #e6e7e1; color: #465149; }
.reader-toolbar button[disabled] { opacity: .45; cursor: not-allowed; }
.source-link { margin-left: auto; }
.original-text {
  padding: 28px clamp(18px, 5vw, 44px) 42px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: 0 14px 45px #4e493f0b;
}
.text-block {
  margin: 0 0 var(--reader-gap);
  color: #30322f;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: var(--reader-font-size);
  line-height: var(--reader-line-height);
  letter-spacing: .025em;
  text-align: justify;
  text-justify: inter-ideograph;
}
.text-block.heading { margin: 1.8em 0 .7em; font-size: calc(var(--reader-font-size) + 3px); font-weight: 650; }
.text-block:first-child.heading { margin-top: 0; }
.anno-highlight { border-radius: .18em; padding: .02em .02em; }
.anno-underline { text-decoration-line: underline; text-decoration-thickness: 1.6px; text-underline-offset: .22em; }
.anno-wavy { text-decoration-line: underline; text-decoration-style: wavy; text-decoration-thickness: 1.2px; text-underline-offset: .22em; }
.aux-panel { margin-top: 16px; padding: 18px; border: 1px dashed #d4cdc2; border-radius: 14px; color: var(--muted); background: #faf7f1; line-height: 1.75; }
.selection-toolbar {
  position: absolute;
  z-index: 100;
  width: min(440px, calc(100vw - 16px));
  padding: 9px;
  border: 1px solid #d7d0c4;
  border-radius: 14px;
  background: #fffdf9;
  box-shadow: 0 14px 38px #413c3420;
}
.palette { display: flex; gap: 6px; overflow-x: auto; padding: 2px 2px 8px; }
.swatch { flex: 0 0 auto; width: 25px; height: 25px; border: 1px solid #00000010; border-radius: 50%; cursor: pointer; }
.swatch.active { outline: 2px solid #53564f; outline-offset: 2px; }
.line-types { display: flex; gap: 5px; }
.kind-btn, .save-anno { flex: 1; border: 0; border-radius: 9px; padding: 8px 9px; background: #efebe4; cursor: pointer; font-size: 12px; }
.kind-btn.active { background: #dfe3dc; color: #48564d; }
.save-anno { flex: 0 0 auto; background: var(--accent); color: white; padding-inline: 13px; }
.annotation-card { padding: 16px 0; border-bottom: 1px solid var(--line); }
.annotation-card blockquote { margin: 7px 0 8px; padding-left: 12px; border-left: 3px solid #cbc2b5; font-family: "Songti SC", "STSong", serif; font-size: 17px; line-height: 1.75; }
.annotation-card .anno-meta { color: var(--muted); font-size: 12px; }
.annotation-card .anno-actions { margin-top: 8px; display: flex; gap: 8px; }
.annotation-card .anno-actions button { border: 0; background: none; color: var(--accent-deep); padding: 2px 0; cursor: pointer; font-size: 12px; }
.center-state { min-height: 50vh; display: grid; place-items: center; align-content: center; gap: 12px; color: var(--muted); text-align: center; }
.spinner { width: 28px; height: 28px; border: 2px solid #d8d2c9; border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.error-box { padding: 22px; border: 1px solid #dfd5cd; border-radius: 16px; background: #fffaf6; }
.error-box h2 { margin-top: 0; }
.empty { padding: 48px 18px; color: var(--muted); text-align: center; }
.settings-dialog { width: min(440px, calc(100vw - 28px)); border: 1px solid var(--line); border-radius: 18px; background: var(--paper); color: var(--ink); box-shadow: 0 24px 70px #0003; }
.settings-dialog::backdrop { background: #28272244; backdrop-filter: blur(4px); }
.dialog-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.dialog-head h2 { margin: 0; }
.settings-dialog label { display: block; margin: 18px 0; }
.settings-dialog input[type="range"] { width: 100%; margin-top: 9px; accent-color: var(--accent); }
.switch-row { display: flex !important; align-items: center; justify-content: space-between; }
.settings-note { color: var(--muted); font-size: 12px; line-height: 1.65; }
.footer-note { margin-top: 40px; color: #918d85; font-size: 11px; line-height: 1.7; }
@media (max-width: 780px) {
  .topbar { height: 58px; padding-left: 10px; padding-right: 10px; }
  .app-shell { padding: 18px 14px 72px; }
  .hero { padding: 30px 2px 18px; }
  .hero p { font-size: 14px; }
  .book-grid { grid-template-columns: 1fr 1fr; }
  .book-card { min-height: 132px; padding: 15px; }
  .book-card h3 { font-size: 18px; }
  .book-card .count { left: 15px; bottom: 14px; }
  .original-text { padding: 24px 19px 38px; }
  .source-link { margin-left: 0; }
}
@media (max-width: 430px) {
  .brand small { display: none; }
  .search-card { padding-left: 13px; }
  .primary-btn { padding-inline: 13px; }
  .book-grid { grid-template-columns: 1fr; }
  .book-card { min-height: 116px; }
  .section-head { align-items: start; flex-direction: column; }
}

/* v0.3 · 句读层 */
.judou-status {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: -8px 2px 12px;
  color: #7d7a73;
  font-size: 12px;
  line-height: 1.6;
}
.judou-status b { color: #575a54; font-weight: 650; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #aaa; }
.status-dot.raw { background: #b7b0a6; }
.status-dot.auto { background: #a8b7b0; }
.status-dot.source { background: #b7bea4; }
.auto-punct {
  color: #6d716b;
  font-weight: 500;
}

/* v0.4 自动译注 */
.settings-divider{height:1px;background:var(--line,#ded9cf);margin:20px 0 16px}
.settings-subtitle{margin:0 0 8px;font-size:17px}
.settings-dialog select,.settings-dialog input[type="url"],.settings-dialog input[type="text"],.settings-dialog input[type="password"]{width:100%;box-sizing:border-box;border:1px solid #d6d0c6;border-radius:12px;background:#fff;padding:11px 12px;font:inherit;color:inherit;margin-top:7px}
.ai-setting-actions{display:flex;align-items:center;gap:10px;margin:10px 0 4px;min-height:34px}.ai-test-status{font-size:13px;color:#756f66}
.reader-unit{margin-bottom:var(--reader-gap,1.05em)}.reader-unit>.text-block{margin-bottom:0}
.inline-aux{margin:9px 0 0;padding:11px 13px;border-left:3px solid #c6b8a7;background:rgba(244,241,234,.72);border-radius:0 10px 10px 0;font-size:.92em;line-height:1.75;color:#49453f}
.inline-aux.translation::before{content:'自动译文';display:block;font-size:12px;letter-spacing:.08em;color:#8b7667;margin-bottom:5px}
.inline-aux.notes::before{content:'自动注释';display:block;font-size:12px;letter-spacing:.08em;color:#7c7864;margin-bottom:5px}
.inline-aux.pending{color:#8a847c}.inline-aux.error{border-left-color:#b8948d;background:#f5ece9;color:#70564f}
.note-list{margin:0;padding-left:1.15em}.note-list li{margin:.22em 0}.note-term{font-weight:650}
.ai-panel{margin:12px 0 18px;padding:12px 14px;border:1px solid #ded8ce;border-radius:14px;background:#faf8f3;color:#5e5951;font-size:14px;line-height:1.55}
.ai-panel-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.ai-panel .progress{font-variant-numeric:tabular-nums;color:#80776c}.ai-panel .warning{margin-top:8px;color:#8c635c}
.ai-mini-spinner{width:14px;height:14px;border:2px solid #d8d1c7;border-top-color:#847c72;border-radius:50%;animation:spin .8s linear infinite;display:inline-block;vertical-align:-2px}
@keyframes spin{to{transform:rotate(360deg)}}
.settings-dialog{max-height:82vh;overflow:auto;-webkit-overflow-scrolling:touch}