/* ══════════════════════════════════════════════════════════
   每日 GitHub 雷达 · 样式
   暗色为主、可切浅色；手机端单列自适应
   ══════════════════════════════════════════════════════════ */

:root {
  --bg:        #0d1117;
  --bg-soft:   #161b22;
  --bg-card:   #161b22;
  --bg-hover:  #1c2430;
  --border:    #263040;
  --border-hi: #33415a;
  --fg:        #e6edf3;
  --fg-muted:  #8b98a9;
  --fg-dim:    #6b7684;
  --accent:    #58a6ff;
  --accent-2:  #7c5cff;
  --hot:       #ff7b47;
  --hot-bg:    rgba(255,123,71,.13);
  --star:      #f0c040;
  --good:      #3fb950;
  --bad:       #f85149;
  --shadow:    0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.22);
  --radius:    14px;
  --radius-sm: 9px;
  --maxw:      1080px;
  --safe-b:    env(safe-area-inset-bottom, 0px);
}

html[data-theme="light"] {
  --bg:        #f6f8fa;
  --bg-soft:   #ffffff;
  --bg-card:   #ffffff;
  --bg-hover:  #f0f3f7;
  --border:    #d8dee6;
  --border-hi: #bfc8d4;
  --fg:        #1f2328;
  --fg-muted:  #5b6675;
  --fg-dim:    #8a94a1;
  --accent:    #0969da;
  --accent-2:  #6f42c1;
  --hot:       #d9480f;
  --hot-bg:    rgba(217,72,15,.10);
  --star:      #bf8700;
  --shadow:    0 1px 2px rgba(31,35,40,.08), 0 8px 22px rgba(31,35,40,.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}
body { padding-bottom: calc(88px + var(--safe-b)); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--bg-hover); padding: 1px 5px; border-radius: 5px; font-size: .88em; }
.muted { color: var(--fg-muted); }
.small { font-size: 12.5px; }

/* ─────────── 顶栏 ─────────── */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px;
  padding-top: calc(10px + env(safe-area-inset-top, 0px));
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 650; letter-spacing: .2px; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.brand .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 10px color-mix(in srgb, var(--accent) 70%, transparent);
}
.viewtabs { display: flex; gap: 4px; margin-left: auto; background: var(--bg-soft); padding: 3px; border-radius: 10px; border: 1px solid var(--border); }
.viewtab {
  appearance: none; border: 0; background: transparent; color: var(--fg-muted);
  padding: 6px 14px; border-radius: 7px; font: inherit; font-size: 13.5px; cursor: pointer;
  display: flex; align-items: center; gap: 6px;
}
.viewtab.is-active { background: var(--bg-hover); color: var(--fg); font-weight: 600; }
.badge { background: var(--accent); color: #fff; border-radius: 9px; padding: 0 6px; font-size: 11px; line-height: 16px; }
.topactions { display: flex; gap: 4px; }
.iconbtn {
  appearance: none; border: 1px solid var(--border); background: var(--bg-soft); color: var(--fg-muted);
  width: 32px; height: 32px; border-radius: 9px; cursor: pointer; font-size: 15px; line-height: 1;
}
.iconbtn:hover { background: var(--bg-hover); color: var(--fg); }

/* ─────────── 布局 ─────────── */
.view { max-width: var(--maxw); margin: 0 auto; padding: 18px 16px; }

/* ─────────── 元信息 / 健康度 ─────────── */
.meta { margin-bottom: 16px; }
.metaline { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; }
.pill-date { background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 34%, transparent); }
.health {
  appearance: none; width: 100%; text-align: left; cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--fg-muted);
  padding: 8px 12px; border-radius: var(--radius-sm); font: inherit; font-size: 13px;
}
.health:hover { border-color: var(--border-hi); }
.healthdot { width: 8px; height: 8px; border-radius: 50%; background: var(--fg-dim); flex: 0 0 auto; }
.healthdot.ok { background: var(--good); box-shadow: 0 0 8px color-mix(in srgb, var(--good) 60%, transparent); }
.healthdot.warn { background: var(--star); box-shadow: 0 0 8px color-mix(in srgb, var(--star) 60%, transparent); }
.healthdot.bad { background: var(--bad); box-shadow: 0 0 8px color-mix(in srgb, var(--bad) 60%, transparent); }
.health .chev { margin-left: auto; transition: transform .18s; }
.health[aria-expanded="true"] .chev { transform: rotate(180deg); }
.healthpanel {
  margin-top: 8px; padding: 12px 14px; background: var(--bg-soft);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 13px; color: var(--fg-muted);
}
.healthpanel ul { margin: 6px 0 0; padding-left: 18px; }
.healthpanel li { margin: 3px 0; }
.healthpanel .k { color: var(--fg); font-weight: 600; }

/* ─────────── 本期必看 ─────────── */
.sechead { font-size: 14px; font-weight: 650; margin: 0 0 10px; display: flex; align-items: baseline; gap: 8px; }
.mustsee { margin-bottom: 18px; }
.mustlist { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px; }
.must {
  display: block; padding: 12px 13px; border-radius: var(--radius-sm);
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 12%, var(--bg-soft)), var(--bg-soft));
  border: 1px solid color-mix(in srgb, var(--accent) 26%, var(--border));
  color: inherit; position: relative; overflow: hidden;
}
.must:hover { text-decoration: none; border-color: var(--accent); }
.must .rank { position: absolute; top: 8px; right: 11px; font-size: 22px; font-weight: 800; opacity: .13; }
.must .mname { font-weight: 650; font-size: 13.5px; word-break: break-all; }
.must .mmeta { font-size: 12px; color: var(--fg-muted); margin-top: 4px; }
.must .mhot { color: var(--hot); font-weight: 700; }

/* ─────────── 筛选栏 ─────────── */
.filters { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 16px; }
.catrow { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.cat {
  appearance: none; border: 1px solid var(--border); background: transparent; color: var(--fg-muted);
  padding: 6px 13px; border-radius: 999px; font: inherit; font-size: 13px; cursor: pointer; white-space: nowrap;
}
.cat:hover { background: var(--bg-hover); color: var(--fg); }
.cat.is-active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.filterrow { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.field { display: flex; flex-direction: column; gap: 5px; font-size: 12px; color: var(--fg-muted); min-width: 0; }
.field > span { padding-left: 2px; }
.field select, .field input[type="text"], .field input[type="search"], .field input:not([type]) {
  appearance: none; background: var(--bg); border: 1px solid var(--border); color: var(--fg);
  padding: 7px 10px; border-radius: var(--radius-sm); font: inherit; font-size: 13.5px; min-width: 0;
}
.field select { padding-right: 26px; background-image: linear-gradient(45deg, transparent 50%, var(--fg-muted) 50%), linear-gradient(135deg, var(--fg-muted) 50%, transparent 50%); background-position: calc(100% - 15px) 52%, calc(100% - 10px) 52%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; }
.field select:focus, .field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent); }
.field-search { flex: 1 1 200px; min-width: 160px; }
.toggles { display: flex; gap: 14px; align-items: center; padding-bottom: 7px; }
.switch { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--fg-muted); cursor: pointer; user-select: none; }
.switch input { accent-color: var(--accent); width: 15px; height: 15px; }
.ghost {
  appearance: none; background: transparent; border: 1px solid var(--border); color: var(--fg-muted);
  padding: 7px 13px; border-radius: var(--radius-sm); font: inherit; font-size: 13px; cursor: pointer;
}
.ghost:hover { background: var(--bg-hover); color: var(--fg); border-color: var(--border-hi); }
.primary { appearance: none; background: var(--accent); border: 1px solid var(--accent); color: #fff; padding: 7px 15px; border-radius: var(--radius-sm); font: inherit; font-size: 13.5px; font-weight: 600; cursor: pointer; }
.primary:hover { filter: brightness(1.08); }
.danger { appearance: none; background: transparent; border: 1px solid color-mix(in srgb, var(--bad) 55%, transparent); color: var(--bad); padding: 7px 13px; border-radius: var(--radius-sm); font: inherit; font-size: 13px; cursor: pointer; }
.danger:hover { background: color-mix(in srgb, var(--bad) 12%, transparent); }
.resultbar { margin-top: 10px; }

/* ─────────── 卡片列表 ─────────── */
.list { display: flex; flex-direction: column; gap: 11px; }
.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 15px; transition: border-color .15s, background .15s;
}
.card:hover { border-color: var(--border-hi); }
.card.is-read { opacity: .62; }
.card.is-open { border-color: var(--accent); }

.chead { display: flex; align-items: flex-start; gap: 10px; }
.ctitle { flex: 1; min-width: 0; }
.crepo { font-size: 15.5px; font-weight: 660; word-break: break-all; line-height: 1.35; }
.csum { margin-top: 5px; font-size: 13.5px; color: var(--fg); }
.csum.pending { color: var(--fg-dim); font-style: italic; }
.cbadges { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; align-items: center; }
.tag {
  font-size: 11.5px; padding: 2px 8px; border-radius: 999px;
  background: var(--bg-hover); color: var(--fg-muted); border: 1px solid var(--border); white-space: nowrap;
}
.tag.cat { font-weight: 700; }
.cat-ai_skill { color: var(--accent);  border-color: color-mix(in srgb, var(--accent) 40%, transparent); background: color-mix(in srgb, var(--accent) 13%, transparent); }
.cat-burst    { color: var(--hot);     border-color: color-mix(in srgb, var(--hot) 40%, transparent);    background: var(--hot-bg); }
.cat-growth   { color: var(--good);    border-color: color-mix(in srgb, var(--good) 40%, transparent);   background: color-mix(in srgb, var(--good) 12%, transparent); }
.cat-classic  { color: var(--accent-2);border-color: color-mix(in srgb, var(--accent-2) 40%, transparent);background: color-mix(in srgb, var(--accent-2) 13%, transparent); }
.tag.new { color: var(--good); border-color: color-mix(in srgb, var(--good) 45%, transparent); }
.tag.warn { color: var(--star); }

.metrics { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 10px; font-size: 12.5px; color: var(--fg-muted); }
.metric { display: flex; align-items: baseline; gap: 4px; }
.metric b { font-weight: 650; color: var(--fg); font-variant-numeric: tabular-nums; }
.metric.hot b { color: var(--hot); font-size: 14.5px; }
.metric.null b { color: var(--fg-dim); }

.burstbar { margin-top: 9px; display: flex; align-items: center; gap: 9px; }
.burstbar .track { flex: 1; height: 5px; border-radius: 999px; background: var(--bg-hover); overflow: hidden; min-width: 40px; }
.burstbar .fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--hot)); }
.burstbar .val { font-size: 12px; color: var(--fg-muted); font-variant-numeric: tabular-nums; min-width: 42px; text-align: right; }

.reason { margin-top: 10px; padding: 9px 11px; border-left: 3px solid var(--accent-2); background: var(--bg-hover); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-size: 13px; color: var(--fg); }
.reason.pending { border-left-color: var(--border-hi); color: var(--fg-dim); font-style: italic; }

.cactions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin-top: 12px; }
.act {
  appearance: none; border: 1px solid var(--border); background: transparent; color: var(--fg-muted);
  padding: 5px 11px; border-radius: 8px; font: inherit; font-size: 12.5px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 5px; white-space: nowrap;
}
.act:hover { background: var(--bg-hover); color: var(--fg); }
.act.on { color: var(--star); border-color: color-mix(in srgb, var(--star) 50%, transparent); background: color-mix(in srgb, var(--star) 12%, transparent); }
.act.up.on { color: var(--good); border-color: color-mix(in srgb, var(--good) 50%, transparent); background: color-mix(in srgb, var(--good) 12%, transparent); }
.act.down.on { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 50%, transparent); background: color-mix(in srgb, var(--bad) 12%, transparent); }
.act.read.on { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 50%, transparent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.act.expand { margin-left: auto; }
.act.primarylink { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.act.primarylink:hover { background: color-mix(in srgb, var(--accent) 14%, transparent); text-decoration: none; }
.act.mirror { color: var(--good); border-color: color-mix(in srgb, var(--good) 40%, transparent); }
.act.mirror:hover { background: color-mix(in srgb, var(--good) 12%, transparent); text-decoration: none; }

.cdetail { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--border); font-size: 13px; }
.cdetail dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 5px 12px; }
.cdetail dt { color: var(--fg-muted); white-space: nowrap; }
.cdetail dd { margin: 0; word-break: break-word; }
.cdetail dd.desc { color: var(--fg-muted); font-size: 12.5px; line-height: 1.55; }
.notebox { margin-top: 11px; }
.notebox label { display: block; font-size: 12px; color: var(--fg-muted); margin-bottom: 5px; }
.notebox textarea {
  width: 100%; min-height: 68px; resize: vertical; background: var(--bg); color: var(--fg);
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 9px 11px;
  font: inherit; font-size: 13px; line-height: 1.55;
}
.notebox textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent); }
.obrow { display: flex; gap: 8px; margin-top: 9px; flex-wrap: wrap; }

/* ─────────── 书架 ─────────── */
.shelfhead { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.shelfhead .sechead { margin: 0; }
.shelfactions { display: flex; gap: 7px; flex-wrap: wrap; margin-left: auto; }
.shelffilter { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.shelffilter .field-search { flex: 1 1 180px; }
.readsel { appearance: none; background: var(--bg); border: 1px solid var(--border); color: var(--fg); border-radius: 8px; padding: 5px 26px 5px 10px; font: inherit; font-size: 12.5px;
  background-image: linear-gradient(45deg, transparent 50%, var(--fg-muted) 50%), linear-gradient(135deg, var(--fg-muted) 50%, transparent 50%);
  background-position: calc(100% - 14px) 52%, calc(100% - 9px) 52%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; }
.savedat { font-size: 11.5px; color: var(--fg-dim); }

.empty { text-align: center; color: var(--fg-muted); padding: 44px 20px; font-size: 14px; }

/* ─────────── 浮动按钮 ─────────── */
.fab {
  position: fixed; right: 16px; bottom: calc(16px + var(--safe-b)); z-index: 45;
  appearance: none; border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
  padding: 11px 18px; border-radius: 999px; font: inherit; font-size: 14px; font-weight: 650;
  cursor: pointer; box-shadow: var(--shadow); display: flex; align-items: center; gap: 7px;
}
.fab:hover { filter: brightness(1.08); }

/* ─────────── 弹窗 ─────────── */
.dlg { border: 1px solid var(--border); background: var(--bg-soft); color: var(--fg); border-radius: var(--radius); padding: 0; max-width: 560px; width: calc(100vw - 32px); box-shadow: var(--shadow); }
.dlg::backdrop { background: rgba(0,0,0,.55); backdrop-filter: blur(3px); }
.dlgform { padding: 18px; }
.dlgform h3 { margin: 0 0 10px; font-size: 16px; }
.dlgform p { margin: 0 0 12px; }
.dlgform textarea { width: 100%; background: var(--bg); color: var(--fg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; font: inherit; font-size: 13.5px; line-height: 1.6; resize: vertical; }
.dlgform textarea:focus { outline: none; border-color: var(--accent); }
.dlgform .field { margin-bottom: 12px; }
.dlgrow { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; margin-top: 14px; }
.snippet { margin: 12px 0 0; padding: 11px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 12px; line-height: 1.55; max-height: 220px; overflow: auto; white-space: pre-wrap; word-break: break-all; color: var(--fg-muted); }

/* ─────────── Toast ─────────── */
.toast {
  position: fixed; left: 50%; bottom: calc(84px + var(--safe-b)); transform: translateX(-50%);
  z-index: 90; background: var(--fg); color: var(--bg); padding: 9px 17px; border-radius: 999px;
  font-size: 13.5px; font-weight: 600; box-shadow: var(--shadow); max-width: calc(100vw - 32px); text-align: center;
}

/* ─────────── L2 深度摘要 ─────────── */
.summary {
  margin-top: 11px; padding: 11px 12px; border-radius: var(--radius-sm);
  background: var(--bg-hover); border: 1px solid var(--border);
}
.summary-head { font-size: 12px; color: var(--fg-muted); font-weight: 600; margin-bottom: 6px; }
.summary-body { font-size: 13px; line-height: 1.72; color: var(--fg); }
.summary-body p { margin: 0 0 7px; }
.summary-body p:last-child { margin-bottom: 0; }
.summary-body.clamped {
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical;
  overflow: hidden; max-height: 7.2em;
}
.summary-body.clamped p { margin: 0; }
.act.ghostlink { border-color: transparent; padding-left: 0; color: var(--accent); }
.act.ghostlink:hover { background: transparent; text-decoration: underline; }

/* ─────────── L3 完整译文 ─────────── */
.fulltext { margin-top: 11px; }
.act.fullbtn { width: 100%; justify-content: center; font-weight: 600; }
.fullbar { display: flex; gap: 10px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
.fullarea {
  margin-top: 9px; padding: 13px 14px; border-radius: var(--radius-sm);
  background: var(--bg); border: 1px solid var(--border);
  font-size: 13.5px; line-height: 1.75; max-height: 620px; overflow: auto;
}
.fullarea > :first-child { margin-top: 0; }
.fullarea h1, .fullarea h2, .fullarea h3,
.fullarea h4, .fullarea h5, .fullarea h6 {
  margin: 18px 0 8px; line-height: 1.35; font-weight: 700;
}
.fullarea h1 { font-size: 18px; }
.fullarea h2 { font-size: 16px; }
.fullarea h3 { font-size: 14.5px; }
.fullarea h4, .fullarea h5, .fullarea h6 { font-size: 13.5px; }
.fullarea p { margin: 0 0 10px; }
.fullarea ul, .fullarea ol { margin: 0 0 10px; padding-left: 22px; }
.fullarea li { margin: 3px 0; }
.fullarea a { color: var(--accent); }
.fullarea blockquote {
  margin: 10px 0; padding: 7px 12px; border-left: 3px solid var(--border-hi);
  background: var(--bg-soft); color: var(--fg-muted); border-radius: 0 6px 6px 0;
}
.fullarea code {
  background: var(--bg-hover); padding: 1px 5px; border-radius: 5px;
  font-size: .88em; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.fullarea pre {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 8px;
  padding: 11px 12px; overflow-x: auto; margin: 10px 0;
}
.fullarea pre code { background: none; padding: 0; font-size: 12.5px; line-height: 1.6; }
.fullarea img { max-width: 100%; height: auto; border-radius: 6px; }
.fullarea hr { border: 0; border-top: 1px solid var(--border); margin: 16px 0; }
.mdtable { overflow-x: auto; margin: 10px 0; }
.mdtable table { border-collapse: collapse; width: 100%; font-size: 12.5px; }
.mdtable th, .mdtable td { border: 1px solid var(--border); padding: 6px 9px; text-align: left; }
.mdtable th { background: var(--bg-hover); font-weight: 650; }

/* ─────────── 手机端：单列自适应 ─────────── */
@media (max-width: 720px) {
  :root { --radius: 12px; }
  .view { padding: 14px 12px; }
  .topbar { padding: 9px 12px; gap: 8px; }
  .brand { font-size: 14px; }
  .brand .dot { width: 7px; height: 7px; }
  .viewtab { padding: 6px 11px; font-size: 13px; }
  .iconbtn { width: 30px; height: 30px; }

  /* 必看：手机单列 */
  .mustlist { grid-template-columns: 1fr; }

  /* 筛选：手机上每项占满一行，输入框和下拉都变成大点击区 */
  .filterrow { flex-direction: column; align-items: stretch; gap: 10px; }
  .field { width: 100%; }
  .field select, .field input { width: 100%; font-size: 15px; padding: 10px 12px; }
  .field select { padding-right: 30px; }
  .toggles { padding-bottom: 0; justify-content: space-between; gap: 18px; }
  .switch { font-size: 14px; }
  .switch input { width: 18px; height: 18px; }
  .ghost, .primary, .danger { padding: 10px 15px; font-size: 14px; }
  .filterrow .ghost { width: 100%; }
  .cat { padding: 7px 14px; font-size: 13.5px; }

  /* 卡片 */
  .card { padding: 13px; }
  .crepo { font-size: 15px; }
  .cactions { gap: 7px; }
  .act { padding: 7px 12px; font-size: 13px; }
  .act.expand { margin-left: 0; flex: 1 1 100%; justify-content: center; }
  .metrics { gap: 12px; }
  .cdetail dl { grid-template-columns: 1fr; gap: 2px 0; }
  .cdetail dt { margin-top: 7px; }

  /* 书架 */
  .shelfhead { flex-direction: column; align-items: stretch; }
  .shelfactions { margin-left: 0; }
  .shelfactions .ghost { flex: 1 1 auto; }
  .shelffilter .cat { flex: 1 1 auto; text-align: center; }

  /* 底部按钮：全宽更好点 */
  .fab { left: 12px; right: 12px; justify-content: center; }
  .dlgrow { flex-direction: column-reverse; }
  .dlgrow button { width: 100%; }
}

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