:root{
  /* light theme */
  --bg:            oklch(0.985 0.003 280);
  --bg-elev:       oklch(1 0 0);
  --bg-soft:       oklch(0.965 0.008 280);
  --bg-tint:       oklch(0.955 0.02 280);
  --line:          oklch(0.90 0.012 280);
  --line-soft:     oklch(0.94 0.010 280);
  --ink:           oklch(0.18 0.012 280);
  --ink-2:         oklch(0.36 0.012 280);
  --ink-3:         oklch(0.55 0.010 280);
  --ink-4:         oklch(0.68 0.010 280);
  --primary:       oklch(0.42 0.16 280);
  --primary-2:     oklch(0.52 0.18 280);
  --primary-soft:  oklch(0.92 0.05 280);
  --primary-ink:   oklch(0.30 0.14 280);
  --accent-good:   oklch(0.62 0.14 160);
  --accent-warn:   oklch(0.72 0.12 70);
  --accent-flag:   oklch(0.60 0.15 25);
  --radius:        14px;
  --radius-sm:     10px;
  --radius-lg:     22px;
  --shadow-card:   0 1px 0 oklch(0.92 0.01 280), 0 12px 40px -24px oklch(0.3 0.08 280 / 0.35);
  --shadow-pop:    0 20px 60px -20px oklch(0.25 0.1 280 / 0.35);
  --font-sans: "Inter", "IBM Plex Sans TC", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

html[data-theme="dark"]{
  --bg:            oklch(0.16 0.015 280);
  --bg-elev:       oklch(0.20 0.018 280);
  --bg-soft:       oklch(0.23 0.02 280);
  --bg-tint:       oklch(0.25 0.03 280);
  --line:          oklch(0.30 0.02 280);
  --line-soft:     oklch(0.26 0.018 280);
  --ink:           oklch(0.97 0.005 280);
  --ink-2:         oklch(0.82 0.01 280);
  --ink-3:         oklch(0.65 0.012 280);
  --ink-4:         oklch(0.50 0.012 280);
  --primary:       oklch(0.72 0.16 280);
  --primary-2:     oklch(0.80 0.15 280);
  --primary-soft:  oklch(0.32 0.08 280);
  --primary-ink:   oklch(0.88 0.12 280);
  --accent-good:   oklch(0.75 0.14 160);
  --accent-warn:   oklch(0.80 0.12 70);
  --accent-flag:   oklch(0.72 0.15 25);
  --shadow-card:   0 1px 0 oklch(0.26 0.02 280), 0 24px 50px -24px #000;
  --shadow-pop:    0 20px 60px -20px #000;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  font-feature-settings: "ss01","cv11","tnum";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
button{font-family:inherit;cursor:pointer}
input, textarea, select{font-family:inherit;color:inherit}
a{color:inherit}

::selection{ background: var(--primary-soft); color: var(--primary-ink); }

/* ------ shell ------ */
.app{ min-height:100vh; display:flex; flex-direction:column; }
.topbar{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; gap:20px;
  padding:14px 28px;
  background: color-mix(in oklch, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(14px);
}
.brand{ display:flex; align-items:center; gap:12px; cursor:pointer; }
.brand-mark{
  width:28px; height:28px; border-radius:8px;
  background: var(--ink); color: var(--bg);
  display:grid; place-items:center;
  font-weight:700; font-size:13px; letter-spacing:-0.03em;
  position:relative; overflow:hidden;
}
.brand-mark::after{
  content:""; position:absolute; inset:auto 0 0 0; height:40%;
  background: var(--primary);
}
.brand-name{ display:flex; flex-direction:column; line-height:1.1; }
.brand-name .zh{ font-weight:600; font-size:14px; letter-spacing:0.02em; }
.brand-name .en{ font-size:11px; color: var(--ink-3); font-family: var(--font-mono); letter-spacing:0.02em; text-transform:uppercase; }

.topnav{ display:flex; gap:4px; margin-left:12px; }
.topnav a{
  padding:7px 12px; border-radius:8px; font-size:13px; color:var(--ink-2);
  text-decoration:none;
}
.topnav a.on{ color: var(--ink); background: var(--bg-soft); }

.topbar .spacer{flex:1}
.topbar-actions{ display:flex; align-items:center; gap:8px; }

.icon-btn{
  width:34px; height:34px; display:grid; place-items:center;
  border-radius:10px; border:1px solid var(--line); background:var(--bg-elev);
  color: var(--ink-2);
}
.icon-btn:hover{ color: var(--ink); border-color: var(--ink-4); }
.icon-btn[data-active="true"]{ color: var(--primary); border-color: var(--primary); background: var(--primary-soft);}

.pill-btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 14px; border-radius:999px;
  background: var(--bg-elev); border:1px solid var(--line);
  color: var(--ink); font-size:13px; font-weight:500;
  white-space: nowrap;
}
.pill-btn:hover{ border-color: var(--ink-4); }
.pill-btn.primary{ background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pill-btn.primary:hover{ background: var(--primary); border-color: var(--primary); }
.pill-btn.ghost{ background:transparent; }

.chip{
  display:inline-flex; align-items:center; gap:6px;
  padding:4px 10px; border-radius:999px;
  background: var(--bg-soft); border:1px solid var(--line-soft);
  font-size:12px; color: var(--ink-2);
  white-space: nowrap;
}
.chip .dot{ width:6px; height:6px; border-radius:50%; background: var(--primary); }

.kbd{
  font-family: var(--font-mono); font-size:10.5px;
  padding:2px 6px; border-radius:4px;
  border:1px solid var(--line); background: var(--bg-soft); color: var(--ink-3);
}

.page{ flex:1; padding: 40px 28px 120px; max-width: 1280px; width:100%; margin:0 auto; }
.page.no-scroll{ padding: 24px 28px; height: calc(100vh - 64px); overflow:hidden; display:flex; flex-direction:column; }

/* ------ landing / search ------ */
.landing{ display:flex; flex-direction:column; gap:40px; padding-top: 24px; }

/* ------ landing v2: single-viewport ------ */
.landing-v2{
  flex:1; min-height:0;
  display:grid; grid-template-columns: 1.15fr 1fr; gap: 32px;
  align-items: stretch;
}
.lv2-left{ display:flex; flex-direction:column; gap:20px; min-height:0; justify-content: center; padding-right: 8px; }
.lv2-right{
  display:grid; grid-template-rows: auto 1fr auto; gap: 14px;
  min-height:0;
}
.lv2 .eyebrow{ margin-bottom: -4px; }
.lv2 h1.headline{
  font-size: clamp(60px, 6vw, 88px);
  line-height: 1.0;
  letter-spacing: -0.04em;
  font-weight: 700;
}
.lv2 h1.headline .grad{
  background-image: linear-gradient(115deg, var(--primary) 0%, oklch(0.56 0.20 278) 40%, oklch(0.66 0.22 268) 100%);
}
.lv2-hero-rule{
  display: block;
  height: 3px;
  width: 52%;
  background: linear-gradient(90deg, var(--primary), var(--primary-2) 60%, transparent);
  border-radius: 2px;
  opacity: 0.55;
  margin-top: -12px;
}
.lv2 .subhead{ font-size: 15px; max-width: 540px; line-height:1.5; }
.lv2 .subhead .en{ font-size: 12.5px; margin-top:4px; }
.lv2 .search-shell{ padding: 5px 5px 5px 18px; }
.lv2 .search-shell input{ font-size:16px; padding:14px 12px; }
.lv2 .search-shell .submit{ height: 42px; padding:0 18px; }
.lv2 .or-divider{ margin: 2px 0; }
.lv2 .upload-zone{ padding: 16px 18px; gap: 16px; }
.lv2 .upload-zone .upload-icon{ width:44px; height:44px; border-radius:11px; }
.lv2 .upload-zone .upload-text .t{ font-size: 14px; }
.lv2 .upload-zone .upload-text .s{ font-size: 12px; line-height:1.45; }
.lv2 .upload-zone .browse{ padding: 8px 14px; font-size:12.5px; }
.lv2 .upload-card{ padding: 16px; gap: 12px; }
.lv2 .upload-card .extracted-summary{ padding: 10px 12px; font-size: 12.5px; line-height:1.5; max-height: 78px; overflow:hidden; }
.lv2 .extracted-block .lbl{ font-size: 10.5px; }
.lv2 .kw-pill{ padding: 4px 10px; font-size: 12px; }
.lv2 .upload-actions{ padding-top: 0; }
.lv2 .upload-actions .left{ font-size: 12px; }
.lv2 .upload-actions .right .pill-btn{ padding: 6px 12px; font-size: 12.5px; }
.lv2 .suggest-inline{
  display:flex; flex-wrap:wrap; align-items:center; gap:6px;
  font-size:12px;
}
.lv2 .suggest-inline .lbl{
  font-family: var(--font-mono); font-size:10.5px; color: var(--ink-4);
  text-transform:uppercase; letter-spacing:0.1em; margin-right:4px;
}
.lv2 .suggest-inline button{
  border:0; background:transparent; padding: 3px 8px; border-radius: 6px;
  font-size:12px; color: var(--ink-2); cursor:pointer;
  border:1px solid var(--line-soft);
  white-space: nowrap;
}
.lv2 .suggest-inline button:hover{ color: var(--primary); border-color: var(--primary); }

.lv2-card{
  background: var(--bg-elev); border:1px solid var(--line-soft);
  border-radius: 16px; padding: 16px 18px;
  display:flex; flex-direction:column; gap: 12px;
  min-height: 0;
}
.lv2-card.flex{ flex:1; }
.lv2-card h4{
  margin:0; display:flex; align-items:center; justify-content:space-between;
  font-size: 11px; text-transform:uppercase; letter-spacing:0.1em;
  color: var(--ink-3); font-weight:500;
}
.lv2-card h4 .meta{ font-family: var(--font-mono); font-size:10px; color: var(--ink-4); }
.lv2-stat-row{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.lv2-stat{ padding: 0 14px; border-left:1px solid var(--line-soft); }
.lv2-stat:first-child{ padding-left: 0; border-left:0; }
.lv2-stat .num{
  font-size: 26px; font-weight: 600; letter-spacing: -0.025em; line-height:1;
  font-variant-numeric: tabular-nums;
}
.lv2-stat .lbl{ font-size: 11px; color: var(--ink-3); margin-top:5px; }
.lv2-stat .lbl .en{ display:block; font-family:var(--font-mono); font-size: 9.5px; color: var(--ink-4); text-transform:uppercase; letter-spacing:0.06em; margin-top:1px; }

.lv2-recent{ display:flex; flex-direction:column; flex:1; min-height:0; overflow-y:auto; }
.lv2-recent .item{
  display:flex; align-items:center; justify-content:space-between;
  padding: 10px 0; border-top: 1px solid var(--line-soft);
  cursor: pointer;
}
.lv2-recent .item:first-child{ border-top: 0; padding-top: 4px; }
.lv2-recent .item:hover .q{ color: var(--primary); }
.lv2-recent .q{ font-size:13px; }
.lv2-recent .en{ font-size: 10.5px; color: var(--ink-4); margin-top: 2px; font-family: var(--font-mono); }
.lv2-recent .meta{ font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); white-space: nowrap; }
.lv2-recent .meta .good{ color: var(--primary); }

.lv2-fingerprint{
  display:grid; grid-template-columns: repeat(18, 1fr);
  gap: 3px; aspect-ratio: 18 / 4; min-height: 80px;
}
.lv2-fingerprint i{ display:block; border-radius: 2px; background: var(--bg-soft); }
.lv2-fp-legend{
  display:flex; justify-content:space-between;
  font-family: var(--font-mono); font-size: 10px; color: var(--ink-4);
  text-transform:uppercase; letter-spacing:0.08em;
}
.landing-head{ display:flex; flex-direction:column; gap:18px; max-width:780px; }
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-mono); font-size:11px; color: var(--ink-3);
  text-transform:uppercase; letter-spacing:0.1em;
}
.eyebrow .line{ width:24px; height:1px; background: var(--ink-4); }
h1.headline{
  font-size:clamp(42px, 5.2vw, 66px); line-height:1.02;
  letter-spacing:-0.025em; font-weight:600;
  margin:0; text-wrap:balance;
}
h1.headline .grad{
  background: linear-gradient(92deg, var(--primary) 0%, var(--primary-2) 60%, var(--ink) 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.subhead{ font-size:18px; line-height:1.55; color: var(--ink-2); max-width: 620px; }
.subhead .en{ display:block; font-size:14px; color: var(--ink-3); margin-top:6px; font-family:var(--font-sans); }

.search-shell{
  display:flex; align-items:center; gap:0;
  background: var(--bg-elev); border:1px solid var(--line);
  border-radius: 18px;
  padding: 6px 6px 6px 20px;
  box-shadow: var(--shadow-card);
  max-width: 860px;
}
.search-shell:focus-within{ border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft), var(--shadow-card); }
.search-shell svg.icon{ color: var(--ink-3); flex:none; }
.search-shell input{
  flex:1; border:0; outline:0; background:transparent;
  font-size:18px; padding: 18px 14px; color: var(--ink);
}
.search-shell input::placeholder{ color: var(--ink-4); }
.search-shell .submit{
  height:48px; padding:0 22px;
  background: var(--ink); color: var(--bg);
  border:0; border-radius: 14px; font-weight:600; font-size:14px;
  display:inline-flex; align-items:center; gap:8px;
}
.search-shell .submit:hover{ background: var(--primary); }

.suggest-row{ display:flex; flex-wrap:wrap; gap:8px; }

/* ------ PDF upload ------ */
.or-divider{
  display:flex; align-items:center; gap:14px;
  max-width: 860px;
  font-family: var(--font-mono); font-size:11px; letter-spacing:0.1em;
  color: var(--ink-4); text-transform:uppercase;
  margin: 4px 0;
}
.or-divider .ln{ flex:1; height:1px; background: var(--line-soft); }

.upload-zone{
  max-width: 860px;
  border: 1.5px dashed var(--line);
  background: var(--bg-elev);
  border-radius: 18px;
  padding: 24px 22px;
  display:flex; align-items:center; gap: 22px;
  transition: border-color .15s ease, background .15s ease;
  cursor: pointer;
}
.upload-zone:hover, .upload-zone[data-drag="true"]{
  border-color: var(--primary);
  background: color-mix(in oklch, var(--primary-soft) 30%, var(--bg-elev));
}
.upload-zone[data-drag="true"]{ border-style: solid; }
.upload-icon{
  flex:none;
  width:56px; height:56px; border-radius: 14px;
  background: var(--primary-soft); color: var(--primary-ink);
  display:grid; place-items:center;
}
.upload-text{ flex:1; display:flex; flex-direction:column; gap:4px; min-width:0; }
.upload-text .t{ font-size: 16px; font-weight:500; color: var(--ink); }
.upload-text .t b{ color: var(--primary); font-weight:500; }
.upload-text .s{ font-size: 12.5px; color: var(--ink-3); line-height:1.5; }
.upload-text .s .mono{ font-family: var(--font-mono); font-size: 11px; }

.upload-zone .browse{
  flex:none;
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 16px; border-radius: 12px;
  background: var(--ink); color: var(--bg);
  font-size: 13px; font-weight:500;
  border:0;
}
.upload-zone .browse:hover{ background: var(--primary); }

/* parsing / parsed state */
.upload-card{
  max-width: 860px;
  background: var(--bg-elev);
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  padding: 22px;
  display:flex; flex-direction:column; gap: 18px;
}
.upload-file-row{
  display:grid; grid-template-columns: 44px 1fr auto; gap:14px; align-items:center;
}
.file-icon{
  width:44px; height:44px; border-radius: 10px;
  background: var(--primary-soft); color: var(--primary-ink);
  display:grid; place-items:center;
  font-family: var(--font-mono); font-size: 11px; font-weight:600;
  letter-spacing: 0.05em;
}
.file-name{ font-size:14px; font-weight:500; }
.file-meta{ font-size:11.5px; color: var(--ink-3); font-family: var(--font-mono); margin-top:3px; letter-spacing:0.04em; }
.file-meta .ok{ color: var(--accent-good); }
.file-remove{
  border:0; background: transparent; color: var(--ink-3);
  padding: 6px 10px; border-radius:8px; font-size:12px;
}
.file-remove:hover{ background: var(--bg-soft); color: var(--accent-flag); }

.parse-progress{
  display:flex; flex-direction:column; gap: 8px;
}
.parse-bar{
  height:4px; border-radius:2px; background: var(--bg-soft); overflow:hidden;
}
.parse-bar > i{ display:block; height:100%; background: var(--primary); transition: width .3s ease; }
.parse-steps{
  display:flex; justify-content:space-between;
  font-family: var(--font-mono); font-size:10.5px; color: var(--ink-3);
  text-transform:uppercase; letter-spacing:0.08em;
}
.parse-steps .on{ color: var(--ink); }

.extracted-block{ display:flex; flex-direction:column; gap:10px; }
.extracted-block .lbl{
  font-family: var(--font-mono); font-size:11px; letter-spacing:0.08em;
  color: var(--ink-3); text-transform:uppercase;
  display:flex; align-items:center; gap:8px;
}
.extracted-summary{
  font-size:13.5px; line-height:1.6; color: var(--ink-2);
  background: var(--bg-soft);
  border-radius: 12px;
  padding: 14px 16px;
}
.extracted-keywords{ display:flex; flex-wrap:wrap; gap:6px; }
.kw-pill{
  display:inline-flex; align-items:center; gap:8px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--primary-soft); color: var(--primary-ink);
  font-size: 13px; border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.kw-pill .w{ font-family: var(--font-mono); font-size: 10.5px; opacity: 0.7; }
.kw-pill:hover{ border-color: var(--primary); }
.kw-pill[data-on="false"]{ background: var(--bg-soft); color: var(--ink-2); }

.upload-actions{
  display:flex; align-items:center; justify-content:space-between;
  padding-top: 4px;
}
.upload-actions .left{ font-size:12.5px; color: var(--ink-3); }
.upload-actions .right{ display:flex; gap:8px; }
.suggest{
  font-size:13px; padding:8px 14px;
  background: var(--bg-elev); border:1px solid var(--line-soft);
  border-radius:999px; color: var(--ink-2);
}
.suggest:hover{ border-color: var(--primary); color: var(--primary); }
.suggest .en{ color: var(--ink-4); margin-left:6px; font-size:11.5px; font-family: var(--font-mono); }

.landing-grid{
  display:grid; grid-template-columns: 1.2fr 1fr; gap: 28px;
  margin-top: 16px;
}
.landing-card{
  background: var(--bg-elev); border:1px solid var(--line-soft);
  border-radius: 20px; padding: 24px;
}
.landing-card h3{
  margin:0 0 18px; font-size:13px; text-transform:uppercase;
  letter-spacing:0.1em; color: var(--ink-3); font-weight:500;
  display:flex; align-items:center; justify-content:space-between;
}
.stat-row{ display:grid; grid-template-columns: repeat(3, 1fr); gap:0; }
.stat{
  padding: 12px 16px 12px 0; border-right:1px solid var(--line-soft);
}
.stat:last-child{ border-right:0; padding-left:16px; padding-right:0; }
.stat:nth-child(2){ padding-left:16px; }
.stat .num{
  font-size: 38px; font-weight:600; letter-spacing:-0.03em; line-height:1;
  font-variant-numeric: tabular-nums;
}
.stat .lbl{ font-size:12px; color:var(--ink-3); margin-top:8px; display:flex; flex-direction:column;}
.stat .lbl .en{ font-family:var(--font-mono); font-size:10.5px; text-transform:uppercase; color: var(--ink-4);}

.recent-query{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 0; border-top:1px solid var(--line-soft);
}
.recent-query:first-of-type{ border-top:0; }
.recent-query .q{ font-size:14px; }
.recent-query .meta{ font-size:12px; color: var(--ink-3); font-family: var(--font-mono); }
.recent-query .meta .good{ color: var(--primary); }

.fingerprint-demo{
  display:grid; grid-template-columns: repeat(14, 1fr);
  gap:4px; aspect-ratio: 14/6;
}
.fingerprint-demo > i{
  display:block; border-radius:3px; background: var(--bg-soft);
}

/* ------ results ------ */
.results-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:24px; margin-bottom: 24px; flex-wrap:wrap;
}
.results-query-block{ display:flex; flex-direction:column; gap:10px; min-width:320px; }
.results-query-block .small{
  font-family: var(--font-mono); font-size:11px; text-transform:uppercase;
  letter-spacing:0.08em; color: var(--ink-3);
}
.results-query-block h2{
  margin:0; font-size:28px; letter-spacing:-0.02em; font-weight:600;
}
.expanded-terms{ display:flex; flex-wrap:wrap; gap:6px; }
.expanded-terms .term{
  font-size:12px; padding:4px 10px; border-radius:999px;
  background: var(--primary-soft); color: var(--primary-ink);
  font-family: var(--font-mono);
}
.expanded-terms .term.source{ background: var(--ink); color: var(--bg); }
.expanded-terms .term.related{ background: var(--bg-soft); color: var(--ink-2); font-family: var(--font-sans); }

.results-toolbar{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.seg{
  display:inline-flex; padding:3px; border-radius:10px;
  background: var(--bg-soft); border:1px solid var(--line-soft);
}
.seg button{
  padding:6px 12px; border-radius:8px; background:transparent;
  border:0; color: var(--ink-3); font-size:12.5px;
}
.seg button.on{ background: var(--bg-elev); color:var(--ink); box-shadow: 0 1px 0 var(--line); }

.results-layout{ display:grid; grid-template-columns: 240px 1fr; gap: 28px; }
.filters{ display:flex; flex-direction:column; gap:24px; position:sticky; top:80px; align-self:flex-start; }
.filter-group h4{
  margin:0 0 10px; font-size:11px; text-transform:uppercase; letter-spacing:0.1em;
  color: var(--ink-3); font-weight:500;
}
.filter-item{
  display:flex; align-items:center; justify-content:space-between;
  padding: 7px 0; font-size:13.5px; color: var(--ink-2); cursor:pointer;
}
.filter-item .count{ font-family: var(--font-mono); font-size:11.5px; color: var(--ink-4); }
.filter-item input{ margin-right:10px; accent-color: var(--primary); }
.filter-item:hover{ color: var(--ink); }

.result-list{ display:flex; flex-direction:column; gap:12px; }

.prof-card{
  background: var(--bg-elev); border:1px solid var(--line-soft);
  border-radius: 18px;
  padding: 22px;
  display:grid; grid-template-columns: 72px 1fr auto; gap: 22px;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
  cursor:pointer;
}
.prof-card:hover{ border-color: var(--ink-4); box-shadow: var(--shadow-card); }
.prof-card[data-selected="true"]{ border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }

.avatar{
  width: 72px; height: 72px; border-radius: 16px;
  display:grid; place-items:center;
  font-weight:600; font-size:22px; letter-spacing:-0.02em;
  color: var(--bg);
}
.avatar.sm{ width:40px; height:40px; border-radius:10px; font-size:14px; }
.avatar.xs{ width:28px; height:28px; border-radius:8px; font-size:11px; }

.prof-main{ display:flex; flex-direction:column; gap:10px; min-width:0; }
.prof-name-row{ display:flex; align-items:baseline; gap:10px; flex-wrap:wrap; }
.prof-name-row .zh{ font-size:19px; font-weight:600; letter-spacing:-0.01em; }
.prof-name-row .en{ font-size:13px; color: var(--ink-3); font-family: var(--font-mono); }
.prof-name-row .dept{ font-size:13px; color: var(--ink-2); }
.prof-name-row .dept::before{ content:"·"; margin:0 8px; color: var(--ink-4); }

.prof-tagline{ font-size:14px; color: var(--ink-2); line-height:1.5; }

.prof-tags{ display:flex; flex-wrap:wrap; gap:6px; }
.tag{
  font-size:11.5px; padding:3px 9px; border-radius:999px;
  background: var(--bg-soft); color: var(--ink-2); border:1px solid var(--line-soft);
}
.tag.on{ background: var(--primary-soft); color: var(--primary-ink); border-color: transparent; }

.prof-meta{
  display:flex; gap:18px; font-family: var(--font-mono); font-size:11px;
  color: var(--ink-3); text-transform:uppercase; letter-spacing:0.06em;
}
.prof-meta b{ color: var(--ink); font-weight:500; font-family: var(--font-sans); text-transform:none; font-size:12.5px; letter-spacing:0; }

.prof-side{ display:flex; flex-direction:column; align-items:flex-end; gap:10px; min-width:140px; }

/* match viz styles */
.score-big{ display:flex; flex-direction:column; align-items:flex-end; }
.score-big .val{
  font-size:42px; font-weight:600; letter-spacing:-0.03em; line-height:1;
  font-variant-numeric: tabular-nums; color: var(--ink);
  font-family: var(--font-mono);
}
.score-big .val .pct{ font-size:20px; color: var(--ink-3); margin-left:2px;}
.score-big .label{
  font-size:11px; text-transform:uppercase; letter-spacing:0.08em;
  color: var(--ink-3); font-family: var(--font-mono); margin-top:4px;
}

.score-bar{ width:160px; display:flex; flex-direction:column; gap:6px; }
.score-bar .row{ display:flex; gap:2px; }
.score-bar .row i{ display:block; height:10px; flex:1; background: var(--bg-soft); border-radius:2px; }
.score-bar .row i.f{ background: var(--primary); }
.score-bar .row i.h{ background: color-mix(in oklch, var(--primary) 60%, var(--bg-soft)); }
.score-bar .caption{
  display:flex; justify-content:space-between; font-family: var(--font-mono);
  font-size:10.5px; color: var(--ink-3); text-transform:uppercase; letter-spacing:0.06em;
}
.score-bar .caption .v{ color: var(--ink); }

.score-radar{ width:130px; height:130px; }

.score-chips{ display:flex; flex-direction:column; gap:4px; align-items:flex-end; max-width: 220px; }
.score-chips .sc{
  display:flex; align-items:center; gap:8px;
  font-size:11.5px; font-family: var(--font-mono); color: var(--ink-2);
}
.score-chips .sc .b{
  display:block; height:4px; border-radius:2px; background: var(--primary);
}
.score-chips .sc .k{ color: var(--ink); }

.score-fp{
  display:grid; grid-template-columns: repeat(8, 6px); gap: 3px;
  width: 72px;
}
.score-fp i{ width:6px; height:6px; border-radius:1.5px; background: var(--bg-soft); display:block; }
.score-fp i.a{ background: var(--primary); }
.score-fp i.b{ background: color-mix(in oklch, var(--primary) 55%, var(--bg-soft)); }
.score-fp + .score-fp-label{
  font-family: var(--font-mono); font-size:10.5px; color: var(--ink-3);
  text-transform:uppercase; letter-spacing:0.08em; margin-top:6px;
}

/* ------ detail ------ */
.detail{ display:flex; flex-direction:column; gap:32px; }
.detail-head{
  display:grid; grid-template-columns: 96px 1fr auto; gap:28px; align-items:flex-start;
  padding-bottom:28px; border-bottom:1px solid var(--line-soft);
}
.detail-head .avatar{ width:96px; height:96px; border-radius:22px; font-size:30px; }
.detail-head .titleblock h2{
  margin: 4px 0 6px; font-size:34px; letter-spacing:-0.025em; font-weight:600; line-height:1.05;
}
.detail-head .titleblock .en{
  font-size:14px; color: var(--ink-3); font-family: var(--font-mono); letter-spacing:0.02em;
}
.detail-head .titleblock .affil{
  font-size:14px; color: var(--ink-2); margin-top:14px;
}
.detail-actions{ display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end; }

.detail-grid{ display:grid; grid-template-columns: 1.4fr 1fr; gap: 32px; }
.panel{
  background: var(--bg-elev); border:1px solid var(--line-soft);
  border-radius: 20px; padding: 24px;
}
.panel h3{
  margin: 0 0 18px; display:flex; align-items:center; justify-content:space-between;
  font-size:13px; text-transform:uppercase; letter-spacing:0.1em;
  color: var(--ink-3); font-weight:500;
}
.panel h3 .en{ font-family:var(--font-mono); font-size:10.5px; color: var(--ink-4); }

.why-item{
  padding: 16px 0; border-top: 1px solid var(--line-soft);
  display:grid; grid-template-columns: 32px 1fr auto; gap:14px; align-items:center;
}
.why-item:first-of-type{ border-top:0; padding-top:0; }
.why-item .ix{
  width:32px; height:32px; border-radius:8px;
  background: var(--bg-soft); color: var(--ink-3);
  display:grid; place-items:center;
  font-family: var(--font-mono); font-size:12px;
}
.why-item .ix.hi{ background: var(--primary); color: var(--bg); }
.why-item .txt .title{ font-size:14px; font-weight:500; }
.why-item .txt .desc{ font-size:12.5px; color: var(--ink-3); margin-top:3px; line-height:1.5; }
.why-item .contrib{
  font-family: var(--font-mono); font-variant-numeric: tabular-nums;
  font-size:13px; color: var(--ink);
  display:flex; align-items:center; gap:10px;
}
.why-item .contrib .bar{
  width: 56px; height:4px; border-radius:2px; background: var(--bg-soft);
  overflow:hidden; position:relative;
}
.why-item .contrib .bar > i{
  display:block; height:100%; background: var(--primary);
}

.keyword-cloud{
  display:flex; flex-wrap:wrap; gap:6px 8px; align-items:baseline;
}
.keyword-cloud .kw{
  display:inline-flex; align-items:baseline; gap:4px;
  padding: 5px 10px; border-radius: 999px;
  background: var(--bg-soft); border: 1px solid var(--line-soft);
  color: var(--ink-2);
}
.keyword-cloud .kw[data-w="3"]{ font-size: 18px; background: var(--primary-soft); color: var(--primary-ink); border-color: transparent; font-weight:500;}
.keyword-cloud .kw[data-w="2"]{ font-size: 15px; color: var(--ink); }
.keyword-cloud .kw[data-w="1"]{ font-size: 13px; }
.keyword-cloud .kw .en{ font-size: 10.5px; font-family: var(--font-mono); color: var(--ink-4);}

.fingerprint{
  display:grid; grid-template-columns: repeat(24, 1fr);
  gap:3px; aspect-ratio: 24/9;
}
.fingerprint i{ display:block; border-radius:2px; background: var(--bg-soft); }
.fingerprint-legend{
  display:flex; justify-content:space-between; margin-top:14px;
  font-family: var(--font-mono); font-size:10.5px; color: var(--ink-3);
  text-transform:uppercase; letter-spacing:0.08em;
}
.fingerprint-legend .scale{ display:flex; align-items:center; gap:5px; }
.fingerprint-legend .scale i{ display:block; width:12px; height:12px; border-radius:3px; }

.papers{ display:flex; flex-direction:column; }
.paper{
  display:grid; grid-template-columns: 40px 1fr auto; gap:16px; align-items:flex-start;
  padding: 16px 0; border-top: 1px solid var(--line-soft);
}
.paper:first-of-type{ border-top:0; padding-top:0; }
.paper .year{
  font-family: var(--font-mono); font-size:12px; color: var(--ink-3);
  padding-top:3px;
}
.paper .title{ font-size:14px; line-height:1.5; text-wrap:pretty;}
.paper .venue{ margin-top:4px; font-size:12px; color: var(--ink-3); font-family: var(--font-mono); }
.paper .cite{
  font-family: var(--font-mono); font-size:11.5px; color: var(--ink-3);
  display:flex; align-items:center; gap:4px; padding-top:3px;
}

.collab-items{ display:flex; flex-direction:column; gap:10px; }
.collab-item{
  display:grid; grid-template-columns: auto 1fr auto; gap:14px; align-items:center;
  padding:14px; background: var(--bg-soft); border-radius: 12px;
}
.collab-item .logo{
  width:36px; height:36px; border-radius:8px;
  display:grid; place-items:center;
  background: var(--bg-elev); border:1px solid var(--line);
  font-family: var(--font-mono); font-size:11px; letter-spacing:0.04em;
  color: var(--ink);
}
.collab-item .nm{ font-size:13.5px; font-weight:500; }
.collab-item .ty{ font-size:11.5px; color: var(--ink-3); margin-top:2px; font-family: var(--font-mono); letter-spacing:0.03em; text-transform:uppercase; }
.collab-item .yr{ font-family: var(--font-mono); font-size:12px; color: var(--ink-3); }

/* ------ compose ------ */
.drawer-backdrop{
  position:fixed; inset:0; background: oklch(0.2 0.02 280 / 0.4);
  backdrop-filter: blur(4px);
  z-index: 50;
  animation: fade .2s ease;
}
.drawer{
  position:fixed; top:0; right:0; bottom:0;
  width: min(560px, 94vw);
  background: var(--bg); border-left: 1px solid var(--line);
  z-index: 51; display:flex; flex-direction:column;
  animation: slide .25s cubic-bezier(.2,.7,.2,1);
  box-shadow: var(--shadow-pop);
}
.drawer-head{
  display:flex; align-items:center; justify-content:space-between;
  padding: 18px 22px; border-bottom: 1px solid var(--line-soft);
}
.drawer-head h3{ margin:0; font-size:16px; font-weight:600; }
.drawer-body{ flex:1; overflow:auto; padding: 22px; display:flex; flex-direction:column; gap:22px; }
.drawer-foot{
  padding: 16px 22px; border-top: 1px solid var(--line-soft);
  display:flex; justify-content:space-between; align-items:center; gap:12px;
}

.field{ display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:12px; text-transform:uppercase; letter-spacing:0.08em; color: var(--ink-3); font-weight:500; }
.field input, .field textarea, .field select{
  width:100%; border:1px solid var(--line);
  background: var(--bg-elev);
  border-radius: 12px; padding: 12px 14px;
  font-size: 14px; outline:0;
}
.field input:focus, .field textarea:focus, .field select:focus{
  border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft);
}
.field textarea{ min-height: 110px; resize: vertical; line-height:1.55; }
.field .hint{ font-size:12px; color: var(--ink-3); }

.recipients{ display:flex; flex-direction:column; gap:8px; }
.recipient{
  display:grid; grid-template-columns: auto 1fr auto; gap:12px; align-items:center;
  padding: 12px; background: var(--bg-soft); border-radius:12px;
}
.recipient .nm{ font-size:13.5px; font-weight:500;}
.recipient .meta{ font-size:12px; color: var(--ink-3); font-family: var(--font-mono); }
.recipient button{
  border:0; background:transparent; color: var(--ink-3);
  padding:4px 8px; border-radius:6px; font-size:12px;
}
.recipient button:hover{ background: var(--bg-elev); color: var(--accent-flag); }

.step-indicator{
  display:flex; align-items:center; gap:8px; font-family:var(--font-mono);
  font-size:11px; letter-spacing:0.08em; text-transform:uppercase; color: var(--ink-3);
}
.step-indicator .n{ color: var(--ink); }

.success-screen{
  padding: 48px 24px; display:flex; flex-direction:column; align-items:center; text-align:center; gap:14px;
}
.success-screen .ring{
  width:64px; height:64px; border-radius:50%;
  background: var(--primary-soft); color: var(--primary);
  display:grid; place-items:center;
}
.success-screen h4{ margin:0; font-size:22px; font-weight:600; letter-spacing:-0.02em; }
.success-screen p{ margin:0; color: var(--ink-2); font-size:14px; max-width: 380px; line-height:1.55; }

/* ------ compare tray ------ */
.tray{
  position:fixed; bottom:20px; left:50%; transform:translateX(-50%);
  z-index: 45;
  background: var(--ink); color: var(--bg);
  border-radius: 16px; padding: 10px 10px 10px 18px;
  box-shadow: var(--shadow-pop);
  display:flex; align-items:center; gap:14px;
  min-width: 420px;
  animation: pop .2s ease;
}
.tray .label{ font-size:13px; }
.tray .avatars{ display:flex; gap:-8px; }
.tray .avatars > *{ box-shadow: 0 0 0 2px var(--ink); }
.tray .avatars > * + *{ margin-left:-10px; }
.tray .actions{ display:flex; gap:6px; margin-left:auto; }
.tray .actions button{
  padding:8px 14px; border:0; border-radius:10px; font-size:13px; font-weight:500;
  background: color-mix(in oklch, var(--bg) 14%, transparent); color: var(--bg);
}
.tray .actions button.primary{ background: var(--bg); color: var(--ink); }
.tray .actions button:hover{ background: color-mix(in oklch, var(--bg) 22%, transparent); }
.tray .actions button.primary:hover{ background: var(--primary-2); color: var(--bg); }

/* ------ compare page ------ */
.compare-grid{
  display:grid; gap:0;
  border:1px solid var(--line-soft); border-radius: 20px; overflow:hidden;
  background: var(--bg-elev);
}
.compare-row{ display:grid; border-top: 1px solid var(--line-soft); }
.compare-row:first-child{ border-top:0; }
.compare-row > *{ padding: 18px; border-left: 1px solid var(--line-soft); font-size:13.5px; }
.compare-row > *:first-child{
  border-left:0; background: var(--bg-soft);
  font-size:12px; text-transform:uppercase; letter-spacing:0.08em; color: var(--ink-3);
  font-weight:500;
  display:flex; align-items:center;
}
.compare-row.head > *{ padding:22px 18px; }
.compare-row.head > *:first-child{ background: var(--bg-elev); }

/* ------ score breakdown modal ------ */
.modal-backdrop{
  position:fixed; inset:0; background: oklch(0.2 0.02 280 / 0.42);
  backdrop-filter: blur(6px);
  z-index: 55; display:grid; place-items:center;
  animation: fade .2s ease;
  padding: 40px 20px;
}
.modal{
  background: var(--bg-elev); border:1px solid var(--line);
  border-radius: 20px; box-shadow: var(--shadow-pop);
  width: min(720px, 100%); max-height: calc(100vh - 80px);
  display:flex; flex-direction:column;
  animation: slide-up .25s cubic-bezier(.2,.7,.2,1);
}
@keyframes slide-up { from {transform: translateY(12px); opacity:0} to {transform: none; opacity:1} }
.modal-head{
  display:flex; align-items:center; justify-content:space-between;
  padding: 18px 22px; border-bottom: 1px solid var(--line-soft);
}
.modal-head h3{ margin:0; font-size:16px; font-weight:600; }
.modal-head .meta{ font-size:11px; color: var(--ink-3); font-family: var(--font-mono); margin-top:3px; letter-spacing:0.04em; }
.modal-body{ flex:1; overflow:auto; padding: 18px 22px 24px; display:flex; flex-direction:column; gap: 22px; }

.algo-meta{
  display:grid; grid-template-columns: 1fr 1fr; gap: 6px 16px;
  font-size: 12px; color: var(--ink-2);
  background: var(--bg-soft); padding: 12px 14px; border-radius: 10px;
}
.algo-meta b{ color: var(--ink-3); font-weight:500; font-family: var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:0.06em; margin-right:6px; }

.score-section h4{
  margin: 0 0 10px; font-size:12.5px; font-weight:600; color: var(--ink);
  display:flex; align-items:center; justify-content:space-between;
}
.score-section h4 .small{ font-family: var(--font-mono); font-size:10.5px; color:var(--ink-3); font-weight:500; letter-spacing:0.06em; text-transform:uppercase; }

.signal-row{
  display:grid; grid-template-columns: 1fr auto auto; gap: 14px;
  padding: 12px 0; border-top: 1px solid var(--line-soft);
  align-items:center;
}
.signal-row:first-of-type{ border-top:0; padding-top:4px; }
.signal-row .nm{ font-size:13.5px; font-weight:500; }
.signal-row .desc{ font-size:11.5px; color: var(--ink-3); margin-top:3px; line-height:1.45; }
.signal-row .desc i{ font-style: normal; color: var(--primary); }
.signal-row .v{ font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size:14px; }
.signal-row .rank{ font-size:11px; color: var(--ink-3); margin-top:3px; font-family: var(--font-mono); text-align:right; }
.signal-bar{ grid-column: 1 / -1; height: 4px; background: var(--bg-soft); border-radius:2px; overflow:hidden; margin-top:6px; }
.signal-bar > i{ display:block; height:100%; background: var(--primary); }
.signal-bar.split{ display:flex; gap:2px; background: transparent; }
.signal-bar.split i{ height:4px; border-radius:1px; }

.formula-box{
  background: var(--bg-soft);
  border-radius: 10px; padding: 14px 16px;
  font-family: var(--font-mono); font-size:13px;
  display:flex; align-items:center; justify-content:space-between; gap: 16px;
  flex-wrap: wrap;
}
.formula-box .formula{ color: var(--ink-2); }
.formula-box .total{ font-size:22px; color: var(--ink); font-weight:600; }
.formula-box .total .pct{ font-size:13px; color: var(--ink-3); }

.dim-row{
  display:grid; grid-template-columns: 1fr auto; gap: 12px;
  padding: 12px 0; border-top: 1px solid var(--line-soft);
}
.dim-row:first-of-type{ border-top:0; padding-top:4px;}
.dim-row .nm{ font-size:13.5px; font-weight:500; }
.dim-row .nm .greek{ color: var(--primary); font-weight:600; margin-right:4px; }
.dim-row .desc{ font-size:11.5px; color: var(--ink-3); margin-top:3px; line-height:1.5; }
.dim-row .v{ font-family: var(--font-mono); font-size:14px; text-align:right; }
.dim-row .w{ font-size:11px; color: var(--ink-3); margin-top:3px; font-family: var(--font-mono); }

.model-note{
  font-size: 12px; line-height:1.6; color: var(--ink-2);
  background: color-mix(in oklch, var(--primary-soft) 50%, var(--bg-elev));
  border-left: 2px solid var(--primary);
  padding: 12px 14px; border-radius: 6px;
}
.model-note b{ color: var(--primary-ink); }

.token-table{ display:flex; flex-direction:column; }
.token-table .th, .token-table .tr{
  display:grid; grid-template-columns: 1fr 80px 70px;
  padding: 8px 0; align-items:center;
  font-size: 12.5px;
}
.token-table .th{
  color: var(--ink-3); font-family: var(--font-mono); font-size:10.5px;
  text-transform:uppercase; letter-spacing:0.08em; border-bottom: 1px solid var(--line-soft);
}
.token-table .tr{ border-bottom: 1px solid var(--line-soft); }
.token-table .tr:last-child{ border-bottom:0; }
.token-table .src{ font-family: var(--font-mono); font-size:11px; color: var(--ink-3); }
.token-table .sc{ font-family: var(--font-mono); text-align:right; }

.ai-block{
  background: color-mix(in oklch, var(--primary-soft) 35%, var(--bg-elev));
  border:1px solid color-mix(in oklch, var(--primary) 25%, var(--line));
  border-radius: 12px; padding: 14px 16px;
  display:flex; flex-direction:column; gap: 10px;
}
.ai-block .head{
  display:flex; align-items:center; gap:8px;
  font-size:12.5px; font-weight:600; color: var(--primary-ink);
}
.ai-block .body{ font-size:13px; line-height:1.65; color: var(--ink); text-wrap: pretty; }

/* ------ tweaks panel ------ */
.tweaks-panel{
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  width: 320px;
  background: var(--bg-elev);
  border:1px solid var(--line);
  border-radius: 18px; padding: 16px;
  box-shadow: var(--shadow-pop);
}
.tweaks-panel h4{
  margin:0 0 12px; font-size:12px; text-transform:uppercase; letter-spacing:0.1em; color: var(--ink-3); font-weight:500;
  display:flex; align-items:center; justify-content:space-between;
}
.tweaks-panel .row{
  display:flex; align-items:center; justify-content:space-between;
  padding: 10px 0; border-top: 1px solid var(--line-soft);
}
.tweaks-panel .row:first-of-type{ border-top:0; }
.tweaks-panel .row .lbl{ font-size:13px; }
.tweaks-panel .row .sub{ font-size:11px; color: var(--ink-3); margin-top:2px; font-family: var(--font-mono); text-transform:uppercase; letter-spacing:0.06em; }
.toggle{
  width: 42px; height:24px; border-radius:999px;
  background: var(--bg-soft); border:1px solid var(--line);
  position:relative; cursor:pointer;
}
.toggle .k{
  position:absolute; top:2px; left:2px; width:18px; height:18px; border-radius:50%;
  background: var(--ink-2); transition: left .15s ease, background .15s ease;
}
.toggle[data-on="true"]{ background: var(--primary); border-color: var(--primary); }
.toggle[data-on="true"] .k{ left:21px; background: var(--bg); }

.seg.small button{ font-size:11px; padding:5px 9px; }

/* ------ misc utils ------ */
.hr{ height:1px; background: var(--line-soft); border:0; margin: 0; }
.muted{ color: var(--ink-3); }
.mono{ font-family: var(--font-mono); }

@keyframes fade { from {opacity:0} to {opacity:1} }
@keyframes slide { from {transform: translateX(20px); opacity: 0} to {transform: none; opacity:1} }
@keyframes pop { from { transform: translate(-50%, 10px); opacity:0 } to { transform: translate(-50%, 0); opacity: 1 } }

/* mobile safety */
@media (max-width: 960px){
  .results-layout{ grid-template-columns: 1fr; }
  .detail-grid{ grid-template-columns: 1fr; }
  .landing-grid{ grid-template-columns: 1fr; }
  .prof-card{ grid-template-columns: 56px 1fr; }
  .prof-side{ grid-column: 1 / -1; flex-direction:row; justify-content: space-between; align-items:center; }
  .filters{ position:static; }
}