:root {
  --bg: #f4f6f8;
  --bg-soft: #eef2f5;
  --panel: #ffffff;
  --panel-2: #fafbfc;
  --border: #dde3e8;
  --border-strong: #c8d2da;
  --text: #16212b;
  --text-2: #4a5a68;
  --muted: #7b8b98;
  --accent: #0e7490;
  --accent-2: #0f766e;
  --accent-soft: #e0f2f7;
  --warn: #b45309;
  --warn-soft: #fef3c7;
  --star: #d97706;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 30, 40, .05), 0 8px 24px rgba(16, 30, 40, .05);
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
}

[data-theme="dark"] {
  --bg: #0f151a;
  --bg-soft: #131c23;
  --panel: #161f27;
  --panel-2: #1a242d;
  --border: #26333d;
  --border-strong: #33424e;
  --text: #e6edf3;
  --text-2: #b3c1cc;
  --muted: #8496a4;
  --accent: #38bdf8;
  --accent-2: #2dd4bf;
  --accent-soft: #0d2a38;
  --warn: #fbbf24;
  --warn-soft: #3a2c0b;
  --star: #fbbf24;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.65 "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, .mono { font-family: var(--mono); font-size: .86em; }
pre {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  overflow-x: auto;
  margin: 10px 0;
}
code { background: var(--bg-soft); padding: 1px 5px; border-radius: 5px; }
pre code { background: none; padding: 0; }

/* ---------------- topbar ---------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 10px 22px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 11px; }
.logo {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 800; letter-spacing: .06em;
  color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
}
.brand-text h1 { margin: 0; font-size: 16px; font-weight: 700; letter-spacing: .01em; }
.brand-text .sub { margin: 0; font-size: 11.5px; color: var(--muted); }

.nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.nav-btn {
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-2);
  font: inherit;
  font-size: 13px;
  padding: 7px 12px;
  border-radius: 9px;
  cursor: pointer;
  transition: .15s;
  white-space: nowrap;
}
.nav-btn:hover { background: var(--bg-soft); color: var(--text); }
.nav-btn.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 28%, transparent);
  font-weight: 600;
}

.topbar-right { display: flex; align-items: center; gap: 10px; }
.stamp { font-size: 11.5px; color: var(--muted); white-space: nowrap; }
.icon-btn {
  width: 32px; height: 32px; border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text-2);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); }

/* ---------------- 全站搜索 ---------------- */
.global-search-wrap { position: relative; flex: 0 1 300px; min-width: 210px; }
.global-search-wrap input {
  width: 100%;
  padding: 8px 12px 8px 30px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: 12.5px;
  outline: none;
  transition: .15s;
}
.global-search-wrap input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.global-search-wrap .gs-ico {
  position: absolute; left: 9px; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 12px; pointer-events: none;
}
.global-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  max-height: 70vh; overflow: auto;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; box-shadow: var(--shadow); z-index: 60; padding: 6px;
}
.global-results[hidden] { display: none; }
.gr-head { font-size: 11.5px; color: var(--muted); padding: 6px 8px; }
.gr-item { display: block; padding: 8px 9px; border-radius: 8px; color: var(--text); }
.gr-item:hover, .gr-item.is-sel { background: var(--bg-soft); text-decoration: none; }
.gr-title { display: block; font-size: 12.8px; font-weight: 600; line-height: 1.4; }
.gr-secs { color: var(--accent); font-weight: 700; margin-right: 6px; }
.gr-meta { display: block; font-size: 11.5px; color: var(--muted); margin-top: 2px; }
.gr-empty { padding: 14px 8px; font-size: 12.5px; color: var(--muted); }

/* ---------------- layout ---------------- */
main { max-width: 1220px; margin: 0 auto; padding: 22px 20px 60px; }

.view { display: none; animation: fade .18s ease; }
.view.is-active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }

.hero {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 18px; flex-wrap: wrap; margin: 6px 0 18px;
}
.hero h2 { margin: 0 0 4px; font-size: 22px; letter-spacing: -.01em; }
.hero-actions { display: flex; gap: 8px; }

.muted { color: var(--muted); }
.small { font-size: 12px; }

/* ---------------- stat cards ---------------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(178px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: .16s;
}
.stat:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.stat .k { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.stat .v { font-size: 27px; font-weight: 700; letter-spacing: -.02em; margin-top: 2px; }
.stat .d { font-size: 11.5px; color: var(--muted); }

/* ---------------- panels ---------------- */
.panel-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
@media (max-width: 900px) { .panel-grid { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  margin-bottom: 14px;
}
.panel h3 { margin: 0 0 12px; font-size: 14.5px; font-weight: 650; }
.panel-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }

/* ---------------- bars (weeks) ---------------- */
.bars { display: flex; align-items: flex-end; gap: 6px; height: 132px; padding-top: 8px; }
.bar-col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 5px; height: 100%; }
.bar-col .bar {
  width: 100%;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  border-radius: 5px 5px 3px 3px;
  min-height: 2px;
  opacity: .85;
  transition: .2s;
  position: relative;
}
.bar-col:hover .bar { opacity: 1; }
.bar-col .bar-label { font-size: 9.5px; color: var(--muted); white-space: nowrap; transform: rotate(-45deg); }
.bar-col .bar-num { font-size: 10px; color: var(--text-2); }

/* ---------------- distributions ---------------- */
.dist { display: flex; flex-direction: column; gap: 9px; }
.dist-row { display: grid; grid-template-columns: 118px 1fr 42px; align-items: center; gap: 10px; font-size: 12.5px; }
.dist-row .nm { color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dist-row .track { height: 8px; background: var(--bg-soft); border-radius: 99px; overflow: hidden; }
.dist-row .fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 99px; }
.dist-row .ct { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---------------- mini list ---------------- */
.mini-list { display: flex; flex-direction: column; }
.mini-item {
  display: grid; grid-template-columns: 68px 1fr auto; gap: 12px;
  padding: 10px 0; border-bottom: 1px dashed var(--border);
  align-items: baseline;
}
.mini-item:last-child { border-bottom: none; }
.mini-date { font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; }
.mini-title { font-size: 13.5px; line-height: 1.5; }
.mini-journal { font-size: 11.5px; color: var(--accent); white-space: nowrap; }

/* ---------------- literature section ---------------- */
.lit-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.lit-head h2 { margin: 0 0 3px; font-size: 21px; }
.lit-desc { margin: 0; font-size: 12.8px; color: var(--muted); max-width: 720px; }

.toolbar {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
  margin: 14px 0 10px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.search-wrap { position: relative; flex: 1 1 300px; min-width: 220px; }
.search-wrap input {
  width: 100%;
  padding: 9px 12px 9px 32px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  outline: none;
  transition: .15s;
}
.search-wrap input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search-wrap .ico { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 13px; }

select, .chip-btn, .btn {
  font: inherit; font-size: 12.5px;
  padding: 8px 11px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text-2);
  cursor: pointer;
  transition: .15s;
}
select:hover, .btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.ghost { background: transparent; }
.btn.is-on { background: var(--accent-soft); color: var(--accent); border-color: color-mix(in srgb, var(--accent) 35%, transparent); font-weight: 600; }

.chips { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 12px; }
.chip-btn { padding: 6px 11px; border-radius: 99px; }
.chip-btn .n { color: var(--muted); font-size: 11px; margin-left: 4px; font-variant-numeric: tabular-nums; }
.chip-btn.is-on { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.chip-btn.is-on .n { color: rgba(255,255,255,.8); }

.result-line { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin: 6px 2px 12px; font-size: 12.5px; color: var(--muted); }

/* ---------------- cards ---------------- */
.cards { display: flex; flex-direction: column; gap: 11px; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  padding: 13px 16px 12px;
  box-shadow: var(--shadow);
  transition: .16s;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.card.is-new { border-left-color: var(--warn); }
.card-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.badge {
  font-size: 10.5px; font-weight: 650; letter-spacing: .02em;
  padding: 2px 7px; border-radius: 99px;
  background: var(--bg-soft); color: var(--text-2);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.badge.new { background: var(--warn-soft); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, transparent); }
.badge.team { background: var(--accent-soft); color: var(--accent); border-color: color-mix(in srgb, var(--accent) 30%, transparent); }
.badge.review { background: #ede9fe; color: #5b21b6; border-color: #ddd6fe; }
[data-theme="dark"] .badge.review { background: #2a1f4a; color: #c4b5fd; border-color: #3f3266; }
.badge.method { background: #e0e7ff; color: #3730a3; border-color: #c7d2fe; }
[data-theme="dark"] .badge.method { background: #1e2447; color: #a5b4fc; border-color: #2f3a6b; }
.badge.pending { background: #fff7ed; color: #c2410c; border-color: #fed7aa; border-style: dashed; }
[data-theme="dark"] .badge.pending { background: #3a2416; color: #fdba74; border-color: #7c4318; }
.badge.preprint { background: #ecfeff; color: #0e7490; border-color: #a5f3fc; }
[data-theme="dark"] .badge.preprint { background: #10303a; color: #67e8f9; border-color: #164e5e; }
.badge.ahead { background: #f0fdf4; color: #15803d; border-color: #bbf7d0; }
[data-theme="dark"] .badge.ahead { background: #12291b; color: #86efac; border-color: #1f5133; }
.badge.cites { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
[data-theme="dark"] .badge.cites { background: #351a1a; color: #fca5a5; border-color: #6b2b2b; }
.card.is-preprint { border-left: 3px solid #0e7490; }
.mini-mark {
  font-size: 10px; font-weight: 700; padding: 0 5px; border-radius: 99px;
  background: #ecfeff; color: #0e7490; border: 1px solid #a5f3fc; margin-right: 6px;
}

.card h3 { margin: 0 0 6px; font-size: 15px; line-height: 1.55; font-weight: 650; }
.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--accent); text-decoration: none; }
.byline { font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.byline .jr { color: var(--accent); font-weight: 600; }
.byline .vol { font-family: var(--mono); font-size: 11px; color: var(--text-2); }
.byline .sep { margin: 0 5px; opacity: .5; }

.cat-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.cat-tag {
  font-size: 10.5px; padding: 2px 8px; border-radius: 6px;
  background: var(--wrap, var(--bg-soft));
  color: var(--text-2);
  border: 1px solid var(--border);
}

.abstract {
  margin: 8px 0 2px;
  padding: 10px 12px;
  background: var(--panel-2);
  border-left: 2px solid var(--border-strong);
  border-radius: 0 8px 8px 0;
  font-size: 12.8px;
  color: var(--text-2);
  line-height: 1.7;
  max-height: 260px;
  overflow: auto;
  white-space: pre-wrap;
}

/* ---------------- bilingual reading cards ---------------- */
.reading-card {
  margin: 10px 0 12px;
  padding: 12px 14px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 9px;
}
.reading-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 12px; }
.reading-head strong { font-size: 12px; color: var(--accent); }
.reading-head span { font-size: 11px; color: var(--muted); }
.reading-fields { margin: 5px 0 0; }
.reading-row {
  display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 10px;
  padding: 9px 0; border-bottom: 1px solid var(--border);
}
.reading-row:last-child { border-bottom: 0; }
.reading-row dt { font-size: 12px; font-weight: 600; color: var(--text); }
.reading-row dt span { display: block; font-size: 10px; font-weight: 400; color: var(--muted); margin-top: 2px; }
.reading-row dd { margin: 0; min-width: 0; font-size: 12.5px; line-height: 1.65; overflow-wrap: anywhere; }
.reading-row p { margin: 0; }
.reading-row p.reading-en { margin-top: 3px; color: var(--text-2); font-size: 12px; }
.reading-evidence { border-top: 1px solid var(--border); padding-top: 7px; font-size: 11.5px; }
.reading-evidence summary { cursor: pointer; color: var(--accent); width: fit-content; }
.reading-proof { margin: 10px 0; }
.reading-proof strong { font-size: 11px; color: var(--text-2); }
.reading-proof blockquote { margin: 4px 0; padding-left: 10px; border-left: 2px solid var(--border-strong); color: var(--text-2); overflow-wrap: anywhere; }
.reading-proof p { margin: 4px 0; }
.reading-pending { margin: 8px 0 10px; font-size: 11px; color: var(--muted); }

.card-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; font-size: 12px; }
.card-actions button {
  border: none; background: none; padding: 0;
  color: var(--accent); cursor: pointer; font: inherit; font-size: 12px;
}
.card-actions button:hover { text-decoration: underline; }
.star-btn {
  margin-left: auto; border: none; background: none; cursor: pointer;
  font-size: 16px; line-height: 1; color: var(--border-strong); padding: 0 2px;
}
.star-btn.is-on { color: var(--star); }

.load-more { display: block; margin: 18px auto 0; }

.empty {
  text-align: center; padding: 44px 20px; color: var(--muted);
  border: 1px dashed var(--border-strong); border-radius: 12px;
}

/* ---------------- about ---------------- */
.tips { margin: 6px 0 0; padding-left: 20px; color: var(--text-2); font-size: 13.5px; }
.tips li { margin: 5px 0; }

.rule-table { width: 100%; border-collapse: collapse; font-size: 12.8px; margin-bottom: 14px; }
.rule-table th, .rule-table td { text-align: left; padding: 7px 9px; border-bottom: 1px solid var(--border); vertical-align: top; }
.rule-table th { color: var(--muted); font-weight: 600; font-size: 12px; }
.rule-table td.kw { color: var(--text-2); font-family: var(--mono); font-size: 11.5px; }

/* ---------------- footer & misc ---------------- */
.footer {
  max-width: 1220px; margin: 0 auto; padding: 18px 20px 34px;
  color: var(--muted); font-size: 12px;
  display: flex; gap: 8px; flex-wrap: wrap;
}
.footer .dot { opacity: .5; }

#bootError { text-align: center; padding: 60px 20px; }

.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 12px);
  background: var(--text); color: var(--panel);
  padding: 9px 16px; border-radius: 99px; font-size: 12.5px;
  opacity: 0; pointer-events: none; transition: .22s; z-index: 100;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 720px) {
  .reading-card { padding: 10px 12px; }
  .reading-row { grid-template-columns: 1fr; gap: 4px; }
  .reading-row dt span { display: inline; margin-left: 6px; }
  .topbar { padding: 9px 14px; gap: 10px; }
  .global-search-wrap { order: 5; flex: 1 1 100%; min-width: 0; }
  .brand-text h1 { font-size: 14.5px; }
  main { padding: 16px 14px 50px; }
  .dist-row { grid-template-columns: 92px 1fr 36px; }
  .mini-item { grid-template-columns: 58px 1fr; }
  .mini-journal { display: none; }
}