.bk-favs, .bk-fav-pop, .bk-favs-seg, .bk-favonly {
  --fv-bg: var(--card, #fbf7ee);
  --fv-ink: var(--ink, #2a2420);
  --fv-ink2: var(--ink-2, #6a5f53);
  --fv-line: var(--line, #cfc1a4);
  --fv-acc: var(--accent, #9e3426);
  --fv-acc-ink: var(--accent-ink, #fff8ee);
  --fv-soft: var(--paper-2, #efe5cf);
}
.bk-favs[data-style="c"], .bk-fav-pop[data-style="c"] {
  --fv-bg: var(--toc-bg, #f7f0de);
  --fv-ink2: var(--ink2, #5a4b3a);
  --fv-line: var(--btn-line, #b9a682);
  --fv-soft: var(--paper, #f3e9d2);
}

.bk-fav-cell { position: relative; min-width: 0; }
.bk-fav-cell > .card { width: 100%; }
.bk-fav-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  z-index: 6;
  box-sizing: border-box;
  width: 30px;
  height: 30px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 244, 222, .7);
  border-radius: 50%;
  background: rgba(30, 21, 13, .78);
  color: #fff3dc;
  font: 17px/1 "Segoe UI Symbol", "Apple Symbols", "Noto Sans Symbols", sans-serif;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.bk-fav-btn:hover { background: #8f2f20; }
.bk-fav-btn.on { background: #b3402c; border-color: #fff; color: #fff; }
.bk-fav-btn:focus-visible { outline: 2px solid #fff; outline-offset: 0; box-shadow: 0 0 0 4px #b3402c; }
.bk-fav-btn:disabled { opacity: .6; }
.bk-fav-seal {
  position: absolute;
  top: 42px;
  right: 11px;
  z-index: 5;
  width: 20px;
  height: 20px;
  border-radius: 3px;
  background: #b3402c;
  color: #fff;
  font: 700 12px/20px "Songti SC", "STSong", "SimSun", serif;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .6), 0 1px 2px rgba(0, 0, 0, .35);
  pointer-events: none;
}
.bk-fav-seal[hidden] { display: none; }
.bk-fav-cell .bk-hidden-tag { right: 42px; }

.c-shelf .bk-fav-cell { display: flex; }
.c-shelf .bk-fav-btn {
  top: auto;
  bottom: 1px;
  right: auto;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 22px;
  border-radius: 4px;
  font-size: 14px;
}
.c-spine .bk-fav-seal {
  top: 1px;
  right: 1px;
  width: 15px;
  height: 15px;
  border-radius: 2px;
  font-size: 10px;
  line-height: 15px;
  writing-mode: horizontal-tb;
}

.bk-favs {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--fv-bg);
  color: var(--fv-ink);
  border: 1px solid var(--fv-line);
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.55;
  overflow: hidden;
}
.bk-favs[hidden] { display: none; }
.bk-favs-hd { display: flex; align-items: center; padding: 6px 8px; border-bottom: 1px solid var(--fv-line); }
.bk-favs-h { margin: 0; flex: 1; min-width: 0; font-size: 16px; font-weight: 700; letter-spacing: .08em; display: flex; align-items: baseline; gap: 8px; padding: 2px 4px; }
.bk-favs-toggle {
  display: flex;
  align-items: baseline;
  gap: 8px;
  width: 100%;
  padding: 3px 4px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  text-align: left;
  cursor: pointer;
}
.bk-favs-toggle:hover { background: var(--fv-soft); }
.bk-favs-n { font-size: 12.5px; font-weight: 400; letter-spacing: 0; color: var(--fv-ink2); }
.bk-favs-arrow { margin-left: auto; font-weight: 400; color: var(--fv-ink2); }
.bk-favs-body { padding: 10px 12px 12px; overflow: auto; min-height: 0; overscroll-behavior: contain; }
.bk-favs-body[hidden] { display: none; }
.bk-favs-note { margin: 0 0 8px; font-size: 12.5px; color: var(--fv-ink2); }
.bk-favs-note a { color: var(--fv-acc); }
.bk-favs-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 10px; }
.bk-favs-tags[hidden] { display: none; }
.bk-favs-tags button, .bk-fav-chips button, .bk-favs-seg button, .bk-fav-pop button, .bk-favs-edit {
  font: inherit;
  cursor: pointer;
}
.bk-favs-tags button, .bk-fav-chips button {
  font-size: 12.5px;
  line-height: 1.5;
  padding: 2px 10px;
  min-height: 26px;
  border-radius: 999px;
  border: 1px solid var(--fv-line);
  background: transparent;
  color: var(--fv-ink);
}
.bk-favs-tags button[aria-pressed="true"], .bk-fav-chips button[aria-pressed="true"] { background: var(--fv-acc); border-color: var(--fv-acc); color: var(--fv-acc-ink); }
.bk-favs-tags .bk-favs-manage { border-style: dashed; color: var(--fv-ink2); }
.bk-favs-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.bk-favs-li { display: flex; gap: 6px; align-items: flex-start; min-width: 0; padding: 8px 8px 8px 10px; border: 1px solid var(--fv-line); border-radius: 8px; }
.bk-favs-open { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; color: inherit; text-decoration: none; border-radius: 4px; }
.bk-favs-open:hover .bk-favs-t { color: var(--fv-acc); }
.bk-favs-t { font-size: 14.5px; font-weight: 600; line-height: 1.4; overflow-wrap: anywhere; }
.bk-favs-m, .bk-favs-r { font-size: 12px; color: var(--fv-ink2); overflow-wrap: anywhere; }
.bk-favs-prog { display: block; inline-size: 100%; block-size: 3px; margin: 2px 0 0; border-radius: 2px; background: var(--fv-line); overflow: hidden; }
.bk-favs-prog i { display: block; block-size: 100%; inline-size: var(--p, 0%); background: var(--fv-acc); }
.bk-favs-tg { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 2px; }
.bk-favs-tg span { font-size: 11.5px; line-height: 1.5; padding: 0 6px; border-radius: 3px; border: 1px solid var(--fv-acc); color: var(--fv-acc); }
.bk-favs-edit { flex: none; min-height: 28px; padding: 2px 9px; border: 1px solid var(--fv-line); border-radius: 6px; background: transparent; color: var(--fv-ink2); font-size: 12.5px; }
.bk-favs-edit:hover { border-color: var(--fv-acc); color: var(--fv-acc); }
.bk-favs-empty { margin: 4px 0; font-size: 13px; color: var(--fv-ink2); }
.bk-favs-empty[hidden] { display: none; }
.bk-favs button:focus-visible, .bk-favs a:focus-visible, .bk-fav-pop button:focus-visible, .bk-fav-pop input:focus-visible, .bk-favs-seg button:focus-visible, .bk-favonly:focus-visible { outline: 2px solid var(--fv-acc); outline-offset: 2px; }
.bk-favonly[aria-pressed="true"] { background: var(--fv-acc); border-color: var(--fv-acc); color: var(--fv-acc-ink); }

@media (min-width: 1010px) {
  .bk-favs.is-collapsed .bk-favs-hd { border-bottom: 0; padding: 6px 4px; }
  .bk-favs.is-collapsed .bk-favs-h { padding: 0; }
  .bk-favs.is-collapsed .bk-favs-toggle { writing-mode: vertical-rl; align-items: center; padding: 10px 4px; letter-spacing: .2em; }
  .bk-favs.is-collapsed .bk-favs-arrow { margin: 6px 0 0; }
}

.bk-favs[data-style="c"] { border-radius: 3px; box-shadow: inset 0 0 0 3px var(--fv-bg), inset 0 0 0 4px var(--fv-line); }
.bk-favs[data-style="c"] .bk-favs-h { letter-spacing: .3em; }
.bk-favs[data-style="c"] .bk-favs-list { flex-direction: row-reverse; flex-wrap: wrap; justify-content: flex-start; gap: 10px 8px; }
.bk-favs[data-style="c"] .bk-favs-li {
  writing-mode: vertical-rl;
  height: 210px;
  max-width: 132px;
  padding: 10px 6px;
  gap: 8px;
  border-radius: 2px;
  background: var(--fv-soft);
  border-color: var(--fv-line);
  box-shadow: inset 0 0 0 2px var(--fv-soft), inset 0 0 0 3px var(--fv-line);
}
.bk-favs[data-style="c"] .bk-favs-open { gap: 4px; }
.bk-favs[data-style="c"] .bk-favs-t { letter-spacing: .12em; }
.bk-favs[data-style="c"] .bk-favs-prog { margin: 0 2px; }
.bk-favs[data-style="c"] .bk-favs-tg span { padding: 4px 0; border-radius: 2px; letter-spacing: .1em; }
.bk-favs[data-style="c"] .bk-favs-edit { padding: 6px 2px; min-height: 0; min-width: 26px; letter-spacing: .2em; }
.bk-favs[data-style="c"] .bk-favs-tags button { border-radius: 3px; border-color: var(--fv-acc); color: var(--fv-acc); }
.bk-favs[data-style="c"] .bk-favs-tags button[aria-pressed="true"] { background: var(--fv-acc); color: var(--fv-acc-ink); }
.bk-favs[data-style="c"] .bk-favs-tags .bk-favs-manage { border-color: var(--fv-line); color: var(--fv-ink2); }

.bk-favs[data-style="b"] { margin: 4px 14px 24px; border-radius: 12px; }
.bk-favs[data-style="b"] .bk-favs-hd { padding: 8px 12px; }
.bk-favs[data-style="b"] .bk-favs-li { padding: 10px; }
.bk-favs[data-style="b"] .bk-favs-edit { min-height: 36px; min-width: 44px; }
.bk-favs[data-style="b"] .bk-favs-tags button { min-height: 32px; }
.bk-favs-seg { display: flex; gap: 3px; margin: 6px 14px 4px; padding: 3px; border: 1px solid var(--fv-line); border-radius: 999px; }
.bk-favs-seg:empty { display: none; }
.bk-favs-seg button { flex: 1; min-height: 36px; padding: 0 10px; border: 0; border-radius: 999px; background: transparent; color: var(--fv-ink); font-size: 14px; }
.bk-favs-seg button[aria-pressed="true"] { background: var(--fv-acc); color: var(--fv-acc-ink); }
.bk-favs-view .sh-grid, .bk-favs-view .bk-cats, .bk-favs-view .bk-filter-empty { display: none !important; }

.bk-fav-mask { position: fixed; inset: 0; z-index: 99980; }
.bk-fav-mask.sheet { background: rgba(0, 0, 0, .45); display: flex; align-items: flex-end; justify-content: center; }
.bk-fav-pop {
  position: fixed;
  box-sizing: border-box;
  width: min(320px, calc(100vw - 16px));
  max-height: calc(100vh - 16px);
  overflow: auto;
  padding: 12px 14px 14px;
  background: var(--fv-bg);
  color: var(--fv-ink);
  border: 1px solid var(--fv-line);
  border-radius: 10px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, .35);
  font-size: 14px;
  line-height: 1.55;
}
.bk-fav-mask.sheet .bk-fav-pop { position: relative; width: min(480px, 100%); max-height: 80vh; border-radius: 14px 14px 0 0; padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
.bk-fav-pop-hd { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 4px; }
.bk-fav-pop-hd b { font-size: 16px; min-width: 0; overflow-wrap: anywhere; }
.bk-fav-pop .bk-fav-x { flex: none; width: 32px; height: 32px; padding: 0; border: 1px solid var(--fv-line); border-radius: 6px; background: transparent; color: var(--fv-ink); font-size: 18px; line-height: 1; }
.bk-fav-sub { margin: 0 0 8px; font-size: 12.5px; color: var(--fv-ink2); }
.bk-fav-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.bk-fav-chips button { min-height: 30px; }
.bk-fav-none { font-size: 13px; color: var(--fv-ink2); }
.bk-fav-new { display: flex; gap: 8px; }
.bk-fav-new input, .bk-fav-mlist input {
  flex: 1;
  min-width: 0;
  box-sizing: border-box;
  padding: 6px 10px;
  border: 1px solid var(--fv-line);
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font: inherit;
}
.bk-fav-new input::placeholder { color: var(--fv-ink2); opacity: 1; }
.bk-fav-pop .bk-fav-add, .bk-fav-pop .bk-fav-ok, .bk-fav-mlist button {
  flex: none;
  min-height: 34px;
  padding: 4px 14px;
  border: 1px solid var(--fv-acc);
  border-radius: 6px;
  background: transparent;
  color: var(--fv-acc);
  font-size: 14px;
}
.bk-fav-pop .bk-fav-ok { background: var(--fv-acc); color: var(--fv-acc-ink); }
.bk-fav-pop .bk-fav-del { min-height: 34px; padding: 4px 12px; border: 1px solid var(--fv-line); border-radius: 6px; background: transparent; color: var(--fv-ink2); font-size: 14px; }
.bk-fav-pop .bk-fav-del[data-confirm="1"] { border-color: var(--fv-acc); color: var(--fv-acc); }
.bk-fav-err { min-height: 1.4em; margin: 6px 0 0; font-size: 13px; color: var(--fv-acc); }
.bk-fav-ft { display: flex; justify-content: space-between; gap: 10px; margin-top: 8px; }
.bk-fav-mlist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; max-height: 50vh; overflow: auto; }
.bk-fav-mlist li { display: flex; gap: 6px; align-items: center; }
.bk-fav-mlist button { padding: 4px 10px; }

.bk-fav-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 99990;
  box-sizing: border-box;
  max-width: min(440px, calc(100vw - 32px));
  padding: 8px 16px;
  border-radius: 999px;
  background: #2b2118;
  color: #fbf3e2;
  font: 14px/1.5 "Noto Serif SC", "Songti SC", "SimSun", serif;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .3);
  opacity: 0;
  transform: translate(-50%, 16px);
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.bk-fav-toast.on { opacity: 1; transform: translate(-50%, 0); }
@media (prefers-reduced-motion: reduce) { .bk-fav-toast { transition: none; } }
@media print { .bk-favs, .bk-fav-btn, .bk-fav-seal, .bk-favs-seg { display: none !important; } }
.c-shelf-head .bk-favonly { margin-left: 6px; }