/* LLM Lab Console — PODSAI 风格 · 极简白研报 (Light Mode) */
:root{
  --bg:#fafaf9;
  --surface:#ffffff;
  --surface-2:#f5f5f4;
  --border:#e7e5e4;
  --border-strong:#d6d3d1;
  --text:#1c1917;
  --text-muted:#57534e;
  --text-faint:#a8a29e;
  --accent:#20808D;
  --accent-2:#01696F;
  --pos:#437A22;
  --neg:#A13544;
  --warn:#964219;
  --purple:#7A39BB;
  --orange:#DA7101;
  --oa:#01696F;      /* OpenAI 色 */
  --ant:#A13544;     /* Anthropic 色 */
  --mono:'JetBrains Mono','SF Mono',Menlo,Consolas,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}

html,body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter','PingFang SC','Microsoft YaHei',-apple-system,BlinkMacSystemFont,sans-serif;
  font-size:15px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum" 1,"lnum" 1;
}

a{color:var(--accent-2);text-decoration:none}
a:hover{color:var(--accent);text-decoration:underline}

.container{max-width:1240px;margin:0 auto;padding:0 32px}

/* ============ 顶部 ============ */
.topbar{
  border-bottom:1px solid var(--border);
  padding:14px 0;
  background:rgba(250,250,249,0.92);
  backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:100;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between}
.brand{
  font-family:var(--mono);
  font-size:14px;
  letter-spacing:0.02em;
  color:var(--text);
  display:flex;align-items:center;gap:10px;
}
.brand-dot{width:8px;height:8px;background:var(--accent);border-radius:2px;display:inline-block}
.brand strong{color:var(--text)}
.brand span{color:var(--text-muted)}
.topnav{display:flex;gap:24px;font-size:13px;color:var(--text-muted)}
.topnav a{color:var(--text-muted)}
.topnav a:hover{color:var(--text)}

/* ============ Hero ============ */
.hero{padding:56px 0 32px;border-bottom:1px solid var(--border)}
.hero h1{
  font-size:42px;font-weight:600;letter-spacing:-0.02em;line-height:1.15;
  color:var(--text);margin-bottom:16px;
}
.hero h1 em{color:var(--accent-2);font-style:normal}
.hero .subtitle{
  color:var(--text-muted);font-size:16px;max-width:820px;line-height:1.65;
  margin-bottom:36px;
}
.hero-meta{
  font-family:var(--mono);font-size:12px;color:var(--text-faint);
  display:flex;gap:24px;flex-wrap:wrap;
}
.hero-meta strong{color:var(--text-muted);font-weight:500}

/* ============ KPI Cards ============ */
.kpi-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:32px;
}
.kpi{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:6px;
  padding:20px 22px;
  position:relative;
  overflow:hidden;
}
.kpi-label{
  font-size:12px;color:var(--text-muted);
  text-transform:uppercase;letter-spacing:0.06em;
  margin-bottom:12px;
  font-family:var(--mono);
}
.kpi-value{
  font-size:32px;font-weight:600;letter-spacing:-0.02em;
  color:var(--text);
  font-feature-settings:"tnum" 1,"lnum" 1;
  line-height:1.1;
}
.kpi-value .unit{font-size:16px;color:var(--text-muted);font-weight:400;margin-left:4px}
.kpi-delta{
  margin-top:8px;font-size:13px;font-family:var(--mono);
  display:flex;align-items:center;gap:6px;
}
.kpi-delta.pos{color:var(--pos)}
.kpi-delta.neg{color:var(--neg)}
.kpi-delta.flat{color:var(--text-muted)}
.kpi-foot{
  margin-top:4px;font-size:11px;color:var(--text-faint);
  font-family:var(--mono);
}
.kpi.accent{border-left:3px solid var(--accent)}
.kpi.oa{border-left:3px solid var(--oa)}
.kpi.ant{border-left:3px solid var(--ant)}

/* ============ Section ============ */
section.mod{padding:48px 0;border-bottom:1px solid var(--border)}
section.mod:last-of-type{border-bottom:none}
.mod-head{
  display:flex;align-items:baseline;justify-content:space-between;
  margin-bottom:6px;flex-wrap:wrap;gap:12px;
}
.mod-num{
  font-family:var(--mono);color:var(--text-faint);font-size:13px;
  letter-spacing:0.05em;
}
.mod-title{
  font-size:24px;font-weight:600;letter-spacing:-0.01em;color:var(--text);
}
.mod-sub{
  color:var(--text-muted);font-size:14px;max-width:820px;
  margin-bottom:28px;line-height:1.65;
}
.mod-tag{
  font-family:var(--mono);font-size:11px;
  color:var(--accent-2);
  background:rgba(1,105,111,0.08);
  padding:3px 8px;border-radius:3px;
  letter-spacing:0.04em;
}

/* ============ Chart Container ============ */
.chart-wrap{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:6px;
  padding:20px 22px 16px;
}
.chart-title{
  font-size:14px;color:var(--text-muted);
  margin-bottom:12px;
  display:flex;justify-content:space-between;align-items:baseline;
}
.chart-title strong{color:var(--text);font-weight:600;font-size:15px}
.chart-el{width:100%;height:380px}
.chart-note{
  font-size:12px;color:var(--text-faint);
  margin-top:10px;padding-top:10px;border-top:1px dashed var(--border);
  font-family:var(--mono);line-height:1.5;
}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.three-col{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}

/* ============ Table ============ */
table.data{
  width:100%;border-collapse:collapse;
  font-size:13px;
}
table.data th{
  text-align:left;font-weight:500;color:var(--text-muted);
  border-bottom:1px solid var(--border-strong);
  padding:10px 12px;font-size:11px;letter-spacing:0.05em;
  text-transform:uppercase;
  font-family:var(--mono);
  white-space:nowrap;
}
table.data td{
  border-bottom:1px solid var(--border);
  padding:12px;color:var(--text);vertical-align:top;
}
table.data td.num{text-align:right;font-family:var(--mono);font-feature-settings:"tnum" 1}
table.data tbody tr:hover{background:var(--surface-2)}
.tag{
  display:inline-block;padding:2px 8px;border-radius:3px;
  font-size:11px;font-family:var(--mono);letter-spacing:0.03em;
}
.tag.hi{background:rgba(161,53,68,0.10);color:var(--neg)}
.tag.mid{background:rgba(150,66,25,0.10);color:var(--warn)}
.tag.lo{background:rgba(87,83,78,0.10);color:var(--text-muted)}
.tag.buy{background:rgba(67,122,34,0.12);color:var(--pos)}
.tag.watch{background:rgba(1,105,111,0.10);color:var(--accent-2)}
.tag.cut{background:rgba(161,53,68,0.10);color:var(--neg)}
.stars{font-family:var(--mono);letter-spacing:1px;color:var(--warn)}
.stars.dim{color:var(--text-faint)}

/* ============ Event Stream ============ */
.event-list{display:flex;flex-direction:column}
.event-item{
  display:grid;grid-template-columns:110px 1fr 200px;gap:20px;
  padding:16px 0;
  border-bottom:1px solid var(--border);
}
.event-item:last-child{border-bottom:none}
.event-date{
  font-family:var(--mono);font-size:12px;color:var(--text-muted);
}
.event-body h4{
  font-size:15px;font-weight:600;color:var(--text);margin-bottom:4px;
}
.event-body .co{color:var(--text-muted);font-size:13px}
.event-body .desc{
  font-size:13px;color:var(--text-muted);margin-top:6px;line-height:1.55;
}
.event-scores{
  display:flex;flex-direction:column;gap:4px;
  font-size:11px;font-family:var(--mono);
}
.event-scores .sr{display:flex;justify-content:space-between;color:var(--text-faint)}
.event-scores .sr span:last-child{color:var(--warn)}
.event-signal{
  display:inline-block;padding:2px 8px;border-radius:3px;
  font-size:11px;font-family:var(--mono);margin-top:4px;
}

/* ============ Footer ============ */
footer{
  padding:40px 0 60px;color:var(--text-faint);font-size:12px;
  font-family:var(--mono);line-height:1.7;
}
footer a{color:var(--text-muted)}

/* ============ Filter ============ */
.filter-bar{
  display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;
}
.filter-chip{
  padding:5px 12px;border:1px solid var(--border);
  border-radius:3px;font-size:12px;color:var(--text-muted);
  cursor:pointer;font-family:var(--mono);letter-spacing:0.03em;
  background:transparent;
  transition:all 0.15s ease;
}
.filter-chip:hover{border-color:var(--accent-2);color:var(--text)}
.filter-chip.active{background:var(--accent-2);color:#fff;border-color:var(--accent-2)}

/* ============ Responsive ============ */
@media(max-width:900px){
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .two-col,.three-col{grid-template-columns:1fr}
  .event-item{grid-template-columns:80px 1fr;gap:12px}
  .event-scores{grid-column:1/-1}
  .hero h1{font-size:32px}
  .container{padding:0 20px}
}