/* =============================================================================
 *  Lyra · screen "library" (发现) · STYLES  —— FE-9 音乐 App 化
 *  -----------------------------------------------------------------------------
 *  全部规则作用域在 [data-screen="library"] 下。仅用 styles.css 暴露的令牌（零裸色）。
 *  v5 screen-discover：编辑式大标题 + 大 hero 精选 + 横排卡片 + 歌单 + 最近在听 +
 *  迷你星座徽章。Atlas 衬线标题 + Moji 克制 chrome；深/浅双主题随令牌自动翻。
 * ========================================================================== */

/* ---- 滚动容器内边距 ---- */
[data-screen="library"] .lib-scroll {
  padding: 8px 0 26px;
}

/* ============================================================ 顶栏 / 编辑式大标题 */
[data-screen="library"] .lib-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 22px 14px;
}
[data-screen="library"] .lib-head { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
[data-screen="library"] .lib-kicker {
  font-family: var(--display);
  font-style: italic;
  font-size: 15px;
  letter-spacing: .3px;
  color: var(--ink-subtle);
  font-weight: 500;
}
[data-screen="library"] .lib-title {
  font-family: var(--display);
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -.4px;
  line-height: 1.04;
  color: var(--ink);
}
[data-screen="library"] .lib-title-seg {
  font-style: italic;
  font-weight: 500;
  color: var(--ink-subtle);
  font-size: 24px;
  letter-spacing: .2px;
  white-space: nowrap;   /* 「你的夜空」整段不断行（避免「空」孤字落第三行） */
}

[data-screen="library"] .lib-top-right { display: flex; align-items: center; gap: 8px; flex: none; }
[data-screen="library"] .lib-icon {
  width: 40px; height: 40px; flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; background: var(--fill-soft);
  border: 1px solid var(--line-strong); color: var(--ink-dim); cursor: pointer;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
[data-screen="library"] .lib-icon:hover { color: var(--ink); border-color: var(--line-strong); background: var(--fill-hover); }

/* —— 语言胶囊（下拉） —— */
[data-screen="library"] .lib-lang {
  position: relative;
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 0 11px;
  border-radius: 999px;
  color: var(--ink);
  background: var(--fill-soft);
  border: 1px solid var(--line-strong);
  transition: background .18s ease, border-color .18s ease;
}
[data-screen="library"] .lib-lang:hover { background: var(--fill-hover); }
[data-screen="library"] .lib-lang.is-open {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}
/* 静态语言标识（仅日语，非控件）：去边框/底色/悬停反馈，读作信息而非按钮 */
[data-screen="library"] .lib-lang-static {
  background: none; border-color: transparent; cursor: default;
}
[data-screen="library"] .lib-lang-static:hover { background: none; }
[data-screen="library"] .lib-lang-flag { display: grid; place-items: center; color: var(--amber); opacity: .9; }
[data-screen="library"] .lib-lang-label { font-family: var(--jp); font-size: 14px; font-weight: 500; }
[data-screen="library"] .lib-lang-caret { color: var(--ink-dim); transition: transform .2s cubic-bezier(.2, .8, .2, 1); }
[data-screen="library"] .lib-lang.is-open .lib-lang-caret { transform: rotate(180deg); }
[data-screen="library"] .lib-lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 148px;
  display: flex;
  flex-direction: column;
  padding: 6px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface-2) 92%, transparent);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-pop);
  z-index: 20;
  animation: libMenuPop .22s cubic-bezier(.2, .9, .25, 1) both;
}
[data-screen="library"] .lib-lang-menu[hidden] { display: none; }
@keyframes libMenuPop {
  from { opacity: 0; transform: translateY(-6px) scale(.97); }
  to   { opacity: 1; transform: none; }
}
[data-screen="library"] .lib-lang-opt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 11px;
  font-family: var(--jp);
  font-size: 14.5px;
  color: var(--ink-dim);
  cursor: pointer;
}
[data-screen="library"] .lib-lang-opt:hover { background: var(--fill-hover); color: var(--ink); }
[data-screen="library"] .lib-lang-opt.on { color: var(--amber); }
[data-screen="library"] .lib-lang-opt svg { color: var(--amber); }

/* ============================================================ 搜歌栏 */
/* 搜歌包裹层（含 scope bar + 结果下拉）*/
[data-screen="library"] .lib-search-wrap {
  position: relative; margin: 0 22px 18px;
}
[data-screen="library"] .lib-search {
  position: relative;
  display: flex; align-items: center; gap: 9px;
  min-height: 44px; margin: 0; padding: 0 14px;
  border-radius: 999px;
  background: var(--fill-soft);
  border: 1px solid var(--line-strong);
  transition: background .18s ease, border-color .18s ease;
}
[data-screen="library"] .lib-search:focus-within {
  background: var(--fill-hover);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}
[data-screen="library"] .lib-search-icon { flex: none; display: inline-flex; color: var(--ink-dim); }
[data-screen="library"] .lib-search-input {
  flex: 1 1 auto; min-width: 0; height: 42px;
  border: none; outline: none; background: transparent;
  color: var(--ink); font-family: var(--ui); font-size: 14px; letter-spacing: .1px;
}
[data-screen="library"] .lib-search-input::placeholder { color: var(--ink-faint); }
[data-screen="library"] .lib-search-input::-webkit-search-cancel-button { display: none; }
[data-screen="library"] .lib-search-clear {
  flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border: none; border-radius: 50%;
  background: var(--fill-hover); color: var(--ink-dim); cursor: pointer;
  transition: background .14s ease, color .14s ease;
}
[data-screen="library"] .lib-search-clear:hover { background: var(--fill-line); color: var(--ink); }

/* scope 开关：「仅日语 / 全部」—— 输入有文字时显示（搜索框正下方，小 pill 对排） */
[data-screen="library"] .lib-scope-bar {
  display: flex; gap: 6px; padding: 8px 4px 0;
}
[data-screen="library"] .lib-scope-bar[hidden] { display: none; }
[data-screen="library"] .lib-scope-opt {
  padding: 5px 13px; border-radius: 999px; min-height: 30px;
  font-size: 12.5px; font-family: var(--ui); font-weight: 500; cursor: pointer;
  border: 1px solid var(--line-strong);
  background: var(--fill-soft); color: var(--ink-dim);
  transition: background .14s ease, color .14s ease, border-color .14s ease;
}
[data-screen="library"] .lib-scope-opt:hover { background: var(--fill-hover); color: var(--ink); }
[data-screen="library"] .lib-scope-opt--active {
  background: color-mix(in srgb, var(--amber) 14%, transparent);
  border-color: color-mix(in srgb, var(--amber) 38%, transparent);
  color: var(--amber);
}

[data-screen="library"] .lib-search-results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; z-index: 30;
  max-height: 340px; overflow-y: auto; padding: 6px;
  border-radius: 16px; background: var(--panel-2);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-pop);
  -webkit-overflow-scrolling: touch;
}
[data-screen="library"] .lib-sresult {
  display: flex; align-items: center; gap: 11px; width: 100%;
  padding: 8px; border: none; border-radius: 12px; background: transparent;
  color: var(--ink); text-align: left; cursor: pointer; transition: background .14s ease;
}
[data-screen="library"] .lib-sresult:hover,
[data-screen="library"] .lib-sresult:active { background: var(--fill-hover); }
[data-screen="library"] .lib-sresult-art {
  flex: none; width: 44px; height: 44px; border-radius: 10px;
  background-size: cover; background-position: center; border: 1px solid var(--line);
}
[data-screen="library"] .lib-sresult-main { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
[data-screen="library"] .lib-sresult-title {
  font-family: var(--jp); font-size: 15px; color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
[data-screen="library"] .lib-sresult-sub {
  font-size: 12.5px; color: var(--ink-dim);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
[data-screen="library"] .lib-sresult-hint {
  padding: 14px 12px; font-size: 13.5px; color: var(--ink-dim); text-align: center;
}
/* filtered 提示：「已过滤 N 首纯音乐」（克制、低调金调，不抢眼） */
[data-screen="library"] .lib-sresult-note {
  margin: 2px 6px 6px; padding: 7px 10px;
  font-size: 12px; color: var(--ink-dim);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-radius: 10px;
}
/* 非学习语言行（offTarget=true）：视觉降权置灰，不阻止点击 */
[data-screen="library"] .lib-sresult--off { opacity: .52; }
[data-screen="library"] .lib-sresult--off:hover,
[data-screen="library"] .lib-sresult--off:active { opacity: .72; background: var(--fill-hover); }
/* 语言标签徽章（"中文·非学习语言"）：行内小胶囊 */
[data-screen="library"] .lib-sresult-lang {
  display: inline-block; vertical-align: middle; margin-left: 6px;
  padding: 1px 7px; border-radius: 999px; font-size: 11px;
  background: color-mix(in srgb, var(--ink-faint) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--ink-faint) 28%, transparent);
  color: var(--ink-faint); white-space: nowrap;
}

/* ============================================================ 口味卡浮层（taste picker）
 *  形状/风格对齐 calibrate.js —— Nocturne 暗底，chip 多选，底部操作条。
 *  挂在 library section 内部（position:absolute），由 JS 动态创建并插入。 */
[data-screen="library"] .lib-taste-sheet {
  position: absolute; inset: 0; z-index: 40;
  background: linear-gradient(var(--bg) 0%, color-mix(in srgb, var(--bg) 94%, transparent) 100%);
  display: flex; flex-direction: column;
  opacity: 0; transform: translateY(14px);
  transition: opacity .28s ease, transform .28s ease;
  overflow-y: auto;
}
[data-screen="library"] .lib-taste-sheet.in { opacity: 1; transform: none; }
[data-screen="library"] .lib-taste-inner { padding: 16px 18px 0; flex: 1; display: flex; flex-direction: column; }
[data-screen="library"] .lib-taste-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 0 10px; position: sticky; top: 0;
  background: linear-gradient(var(--bg) 72%, transparent);
  z-index: 2;
}
[data-screen="library"] .lib-taste-kicker {
  font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--amber);
}
[data-screen="library"] .lib-taste-skip {
  background: none; border: none; color: var(--ink-faint); font-size: 14px; cursor: pointer;
  padding: 8px 6px; min-height: 44px;
}
[data-screen="library"] .lib-taste-skip:hover { color: var(--ink-dim); }
[data-screen="library"] .lib-taste-title { margin: 6px 0 8px; font-size: 26px; font-weight: 700; color: var(--ink); line-height: 1.2; }
[data-screen="library"] .lib-taste-sub { margin: 0 0 20px; font-size: 14px; color: var(--ink-dim); line-height: 1.6; }
[data-screen="library"] .lib-taste-body { flex: 1; }
[data-screen="library"] .lib-taste-sec { margin-bottom: 22px; }
[data-screen="library"] .lib-taste-sec-h { margin: 0 0 12px; font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-dim); }
[data-screen="library"] .lib-taste-grid { display: flex; flex-wrap: wrap; gap: 9px; }
/* taste chip（同 calibrate .cb-chip 形状，scope 区隔） */
[data-screen="library"] .lib-taste-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 15px; min-height: 44px;
  background: var(--panel); border: 1px solid var(--line-strong); border-radius: 999px;
  color: var(--ink); cursor: pointer;
  opacity: 0; transform: translateY(6px);
  transition: opacity .28s ease, transform .28s ease, border-color .15s ease, background .15s ease;
}
[data-screen="library"] .lib-taste-chip.in { opacity: 1; transform: none; }
[data-screen="library"] .lib-taste-chip-w { font-size: 15px; font-weight: 500; }
[data-screen="library"] .lib-taste-chip-mark {
  width: 16px; height: 16px; flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; border: 1.5px solid var(--line-strong);
  transition: all .15s ease;
}
[data-screen="library"] .lib-taste-chip.on {
  border-color: color-mix(in srgb, var(--mint) 45%, transparent);
  background: color-mix(in srgb, var(--mint) 10%, transparent);
}
[data-screen="library"] .lib-taste-chip.on .lib-taste-chip-mark {
  border-color: var(--mint); background: var(--mint);
}
/* 底部固定操作条 */
[data-screen="library"] .lib-taste-bar {
  position: sticky; bottom: 0;
  display: flex; align-items: center; gap: 14px;
  padding: 12px 0 calc(12px + env(safe-area-inset-bottom, 0px));
  background: linear-gradient(transparent, var(--bg) 30%);
  z-index: 5;
}
[data-screen="library"] .lib-taste-count { font-size: 14px; color: var(--ink-dim); white-space: nowrap; }
[data-screen="library"] .lib-taste-submit { flex: 1; }
[data-screen="library"] .lib-taste-submit:disabled { opacity: .4; }

@media (prefers-reduced-motion: reduce) {
  [data-screen="library"] .lib-taste-sheet { transition: opacity .15s ease; transform: none; }
  [data-screen="library"] .lib-taste-chip { opacity: 1; transform: none; transition: border-color .14s ease, background .14s ease; }
}

/* ============================================================ 大 hero 精选卡 */
[data-screen="library"] .lib-hero-sec { padding: 0 22px; margin-bottom: 32px; }
[data-screen="library"] .lib-hero {
  position: relative;
  display: block;
  width: 100%;
  height: 360px;
  text-align: left;
  border: none;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--line-strong), var(--shadow-soft);
  cursor: pointer;
  transition: transform .16s ease;
}
[data-screen="library"] .lib-hero:active { transform: scale(.99); }
[data-screen="library"] .lib-hero-art {
  position: absolute; inset: 0;
  background-size: cover !important;
  background-position: center !important;
}
/* 由封面情绪向底部可读暗带过渡（深=暗带；浅=羊皮纸渐隐，文字翻墨色） */
[data-screen="library"] .lib-hero-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--canvas) 4%, transparent) 0%,
                            color-mix(in srgb, var(--canvas) 34%, transparent) 46%,
                            color-mix(in srgb, var(--canvas) 92%, transparent) 100%);
}
[data-screen="library"] .lib-hero-const {
  position: absolute; top: 16px; right: 16px; z-index: 2;
  opacity: .92;
}
[data-screen="library"] .lib-hero-meta {
  position: absolute; left: 22px; right: 22px; bottom: 22px; z-index: 2;
  display: flex; flex-direction: column; gap: 4px;
}
[data-screen="library"] .lib-hero-kicker {
  font-family: var(--display);
  font-style: italic;
  font-size: 15px;
  letter-spacing: .3px;
  color: var(--ink);
  opacity: .9;
  font-weight: 500;
  margin-bottom: 6px;
}
[data-screen="library"] .lib-hero-title {
  font-family: var(--jp);
  font-size: 34px;
  font-weight: 600;
  letter-spacing: -.4px;
  line-height: 1.12;
  color: var(--ink);
}
[data-screen="library"] .lib-hero-sub {
  font-size: 13.5px;
  color: var(--ink-dim);
}
[data-screen="library"] .lib-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  margin-top: 14px;
  padding: 11px 22px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--canvas);
  font-family: var(--ui);
  font-size: 14.5px;
  font-weight: 600;
}

/* ============================================================ shelf（区块） */
[data-screen="library"] .lib-shelf { margin-bottom: 34px; }
[data-screen="library"] .lib-shelf-h {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 0 22px;
  margin-bottom: 14px;
}
[data-screen="library"] .lib-shelf-title {
  font-family: var(--display);
  font-size: 25px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1;
  color: var(--ink);
}
[data-screen="library"] .lib-shelf-sub {
  font-family: var(--ui);
  font-size: 12.5px;
  color: var(--ink-subtle);
  margin-left: 10px;
  font-weight: 400;
}
[data-screen="library"] .lib-refresh {
  display: inline-flex; align-items: center; gap: 6px;
  border: none; background: transparent; cursor: pointer;
  font-family: var(--ui);
  font-size: 13px; color: var(--ink-dim); font-weight: 500;
  transition: color .15s ease;
}
[data-screen="library"] .lib-refresh:hover { color: var(--ink); }
[data-screen="library"] .lib-refresh svg { transition: transform .5s cubic-bezier(.4, .1, .2, 1); }
[data-screen="library"] .lib-refresh.is-spinning svg { animation: libSpin .8s linear infinite; }
@keyframes libSpin { to { transform: rotate(360deg); } }

/* ============================================================ 横排 rail */
[data-screen="library"] .lib-rail {
  display: flex; gap: 16px;
  overflow-x: auto; overflow-y: hidden;
  padding: 2px 22px 6px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
[data-screen="library"] .lib-rail::-webkit-scrollbar { height: 0; }

[data-screen="library"] .lib-card {
  flex: 0 0 auto;
  display: flex; flex-direction: column;
  text-align: left; border: none; background: transparent;
  padding: 0; cursor: pointer; scroll-snap-align: start;
}
[data-screen="library"] .lib-card-title {
  font-family: var(--jp);
  font-size: 14.5px; font-weight: 500; line-height: 1.3;
  color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
[data-screen="library"] .lib-card-artist {
  font-size: 12.5px; color: var(--ink-subtle);
  margin-top: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* —— 推荐方卡 —— */
[data-screen="library"] .lib-song { width: 148px; }
[data-screen="library"] .lib-card-art {
  position: relative;
  width: 148px; height: 148px;
  border-radius: var(--r-sm);
  overflow: hidden;
  background-size: cover !important;
  background-position: center !important;
  box-shadow: 0 0 0 1px var(--line), var(--shadow-soft);
  margin-bottom: 10px;
  transition: transform .16s ease;
}
[data-screen="library"] .lib-song:active .lib-card-art { transform: scale(.97); }
/* 迷你星座徽章（左上角浮于封面）：金边胶囊 + 缩小真实星座 */
[data-screen="library"] .lib-card-badge {
  position: absolute; top: 8px; left: 8px; z-index: 2;
  display: inline-flex; align-items: center;
  padding: 3px 7px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--canvas) 52%, transparent);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
}

/* —— 歌单卡（宽） —— */
[data-screen="library"] .lib-pl { width: 208px; }
/* P5：歌单卡编排理由描述行(封面下,真排印,无则不渲——非堆徽章,守 §7) */
[data-screen="library"] .lib-pl-meta {
  margin-top: 8px; padding: 0 2px;
  font-family: var(--display);
  font-size: 13px; line-height: 1.45;
  color: var(--ink-subtle);
  white-space: normal;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
[data-screen="library"] .lib-pl-art {
  position: relative;
  width: 208px; height: 120px;
  border-radius: var(--r-sm);
  overflow: hidden;
  background-size: cover !important;
  background-position: center !important;
  box-shadow: 0 0 0 1px var(--line), var(--shadow-soft);
  transition: transform .16s ease;
}
[data-screen="library"] .lib-pl:active .lib-pl-art { transform: scale(.98); }
[data-screen="library"] .lib-pl-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg,
      color-mix(in srgb, var(--canvas) 0%, transparent) 0%,
      color-mix(in srgb, var(--canvas) 72%, transparent) 100%),
    linear-gradient(108deg,
      color-mix(in srgb, var(--canvas) 58%, transparent),
      color-mix(in srgb, var(--canvas) 0%, transparent) 66%);
}
[data-screen="library"] .lib-pl-lbl {
  position: absolute; left: 13px; right: 13px; bottom: 12px; z-index: 2;
  display: flex; flex-direction: column; gap: 3px;
}
[data-screen="library"] .lib-pl-lbl b {
  font-family: var(--display);
  font-size: 18px; font-weight: 600; line-height: 1.15;
  color: var(--ink);
  text-shadow: 0 1px 12px color-mix(in srgb, var(--canvas) 72%, transparent);
}
[data-screen="library"] .lib-pl-lbl span {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: .3px;
  color: var(--ink-dim);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 1px 10px color-mix(in srgb, var(--canvas) 70%, transparent);
}

/* —— 最近在听卡（小方形） —— */
[data-screen="library"] .lib-recent { width: 112px; }
[data-screen="library"] .lib-recent-art {
  position: relative;
  width: 112px; height: 112px;
  border-radius: var(--r-sm);
  overflow: hidden;
  background-size: cover !important;
  background-position: center !important;
  box-shadow: 0 0 0 1px var(--line), var(--shadow-soft);
  margin-bottom: 9px;
}
[data-screen="library"] .lib-recent .lib-card-badge { top: 6px; left: 6px; padding: 2px 6px; }
[data-screen="library"] .lib-recent .lib-card-title { font-size: 13px; }
[data-screen="library"] .lib-recent .lib-card-artist { font-size: 11px; }

/* ============================================================ 空态 / 占位 */
[data-screen="library"] .lib-empty {
  padding: 18px 22px; color: var(--ink-dim); font-size: 14px;
}
[data-screen="library"] .lib-empty-rail { white-space: nowrap; }
[data-screen="library"] .lib-empty-reco {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: min(420px, calc(100vw - 44px));
  white-space: nowrap;
}
[data-screen="library"] .lib-hero-empty {
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--fill-soft);
}
[data-screen="library"] .lib-hero-empty-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
[data-screen="library"] .lib-hero-empty-title {
  font-family: var(--display);
  font-size: 24px;
  line-height: 1.15;
  color: var(--ink);
}
[data-screen="library"] .lib-hero-empty-sub {
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-dim);
}
[data-screen="library"] .lib-reco-retry {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--fill-soft);
  color: var(--ink-dim);
  font-family: var(--ui);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
[data-screen="library"] .lib-reco-retry:hover:not(:disabled) {
  color: var(--ink);
  background: var(--fill-hover);
  border-color: var(--ink-muted);
}
[data-screen="library"] .lib-reco-retry:disabled {
  opacity: .65;
  cursor: default;
}
@media (max-width: 430px) {
  [data-screen="library"] .lib-hero-empty {
    align-items: flex-start;
    flex-direction: column;
  }
  [data-screen="library"] .lib-hero-empty .lib-reco-retry {
    width: 100%;
  }
}

/* ============================================================ FE-4 一键缓存条（顶部） */
/* P4：屏底安静页脚式入口——去填充盒,改一条极淡分隔线 + 透明底;横向 22px 与其余块对齐(根治凸出);
 * accent 收归 hero CTA,本入口降为中性次级,不抢色。 */
[data-screen="library"] .lib-warm {
  display: flex; align-items: center; gap: 12px;
  margin: 16px 22px calc(14px + env(safe-area-inset-bottom));
  padding: 16px 0 2px;
  border-top: 1px solid var(--line);
  background: transparent;
}
[data-screen="library"] .lib-warm-info {
  display: flex; align-items: center; gap: 8px; min-width: 0; flex: 1;
}
[data-screen="library"] .lib-warm-icon {
  display: inline-flex; flex: none;
  color: var(--ink-faint);
}
[data-screen="library"] .lib-warm-text {
  font-family: var(--ui);
  font-size: 12px; line-height: 1.35;
  color: var(--ink-faint);
  overflow: hidden; text-overflow: ellipsis;
}
[data-screen="library"] .lib-warm.is-warming .lib-warm-text { color: var(--ink-dim); }
[data-screen="library"] .lib-warm-btn {
  flex: none;
  appearance: none; cursor: pointer;
  font-family: var(--ui); font-size: 12.5px; font-weight: 500;
  letter-spacing: .01em;
  color: var(--ink-dim);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 6px 14px;
  transition: color .16s ease, border-color .16s ease;
}
[data-screen="library"] .lib-warm-btn:hover:not(:disabled) {
  color: var(--ink); border-color: var(--ink-muted);
}
[data-screen="library"] .lib-warm-btn:disabled { opacity: .6; cursor: default; }

/* ============================================================ FE-4 三态就绪小标 */
/* 歌词 / 注音翻译(analyze) / 音源(audio) 各一个小指示（✓就绪 / ○未就绪）。
   克制：小点 + 极小字，不喧宾夺主。就绪 = --s-done（蓝白/墨蓝）；未就绪 = --ink-faint。零裸色。 */
[data-screen="library"] .lib-cache {
  display: flex; align-items: center;
  gap: 8px; flex-wrap: wrap;
  margin-top: 6px;
}
[data-screen="library"] .lib-cache-facet {
  display: inline-flex; align-items: center; gap: 3px;
}
[data-screen="library"] .lib-cache-dot {
  width: 5px; height: 5px; flex: none;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px var(--ink-faint);   /* 未就绪：空心环（○），中性暗色，零裸色 */
  background: transparent;
  transition: background .25s ease, box-shadow .25s ease;
}
[data-screen="library"] .lib-cache-lbl {
  font-family: var(--ui);
  font-size: 10px; letter-spacing: .02em;
  color: var(--ink-faint);
  transition: color .25s ease;
}
/* 就绪态：实心 --s-done 点（✓）+ 字稍提亮。 */
[data-screen="library"] .lib-cache-facet[data-ready="1"] .lib-cache-dot {
  background: var(--s-done);
  box-shadow: inset 0 0 0 1px var(--s-done), 0 0 4px color-mix(in srgb, var(--s-done) 50%, transparent);
}
[data-screen="library"] .lib-cache-facet[data-ready="1"] .lib-cache-lbl {
  color: var(--ink-dim);
}
/* hero variant：略大、字色更亮（叠在封面 scrim 上）。 */
[data-screen="library"] .lib-cache-hero { margin-top: 9px; gap: 11px; }
[data-screen="library"] .lib-cache-hero .lib-cache-dot { width: 6px; height: 6px; }
[data-screen="library"] .lib-cache-hero .lib-cache-lbl { font-size: 11px; color: var(--ink-subtle); }
[data-screen="library"] .lib-cache-hero .lib-cache-facet[data-ready="1"] .lib-cache-lbl { color: var(--ink); }
/* row variant：搜索结果行内（封面右侧主区下方）。 */
[data-screen="library"] .lib-cache-row { margin-top: 5px; gap: 9px; }

/* 入场动画 .fade-up 由 styles.css 全局提供（屏幕加 .fade-up 再依次 .in）。 */

@media (prefers-reduced-motion: reduce) {
  [data-screen="library"] .lib-lang-menu { animation: none; }
  [data-screen="library"] .lib-refresh.is-spinning svg { animation: none; }
  [data-screen="library"] .lib-cache-dot,
  [data-screen="library"] .lib-cache-lbl,
  [data-screen="library"] .lib-warm-btn { transition: none; }
}