:root{
  --bg:#0f1216; --panel:#171c22; --line:#242b34; --fg:#e8edf3; --dim:#9aa7b4;
  --accent:#4da3ff; --warn:#f0a33a; --bad:#e05c5c; --ok:#3fbf7f;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);
  font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans CJK SC","Microsoft YaHei",sans-serif}
header{padding:28px 24px 12px;max-width:1280px;margin:0 auto}
h1{margin:0 0 6px;font-size:24px;letter-spacing:.5px}
.sub{margin:0;color:var(--dim);font-size:14px}
.sub strong{color:var(--fg);font-weight:600}
.summary{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.pill{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 14px;font-size:13px;color:var(--dim)}
.pill b{color:var(--fg);font-size:15px;font-weight:600}

.controls{max-width:1280px;margin:0 auto;padding:8px 24px;display:flex;gap:16px;
  align-items:center;flex-wrap:wrap}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.seg button{background:transparent;border:0;color:var(--dim);padding:7px 16px;font-size:13px;cursor:pointer}
.seg button.on{background:var(--accent);color:#08111c;font-weight:600}
.note{color:var(--dim);font-size:13px}

main{max-width:1280px;margin:0 auto;padding:8px 24px 40px;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(520px,1fr));gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px 6px}
.card h2{margin:0;font-size:15px;font-weight:600;display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.card h2 span{font-weight:400;font-size:12px;color:var(--dim)}
.meta{margin:4px 0 8px;font-size:12px;color:var(--dim);min-height:18px}
svg{display:block;width:100%;height:auto}
.axis text{fill:var(--dim);font-size:10px}
.grid line{stroke:var(--line);stroke-width:1}
.series path{fill:none;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}
.series circle{stroke:none}
.legend{display:flex;flex-wrap:wrap;gap:6px 12px;padding:6px 0 10px;font-size:11px;color:var(--dim)}
.legend i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:4px;vertical-align:-1px}
.foot{color:var(--dim);font-size:12px;padding:0 0 8px}
footer{max-width:1280px;margin:0 auto;padding:0 24px 48px;color:var(--dim);font-size:12px}
.empty{color:var(--dim);font-size:12px;padding:22px 0 26px}
@media(max-width:600px){
  main{grid-template-columns:1fr;padding:8px 12px 32px}
  header,.controls,footer{padding-left:14px;padding-right:14px}
}