:root {
  --bg: #0b1020;
  --bg-card: #141a2f;
  --bg-card-2: #1a2140;
  --fg: #e8ecf7;
  --fg-dim: #9aa3bd;
  --accent: #5b8cff;
  --accent-soft: #2540a8;
  --pos: #37d399;
  --pos-soft: rgba(55, 211, 153, 0.12);
  --pos-border: rgba(55, 211, 153, 0.35);
  --neg: #ff6b8b;
  --neg-soft: rgba(255, 107, 139, 0.12);
  --neg-border: rgba(255, 107, 139, 0.35);
  --warn: #ffcc66;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  line-height: 1.6;
}

body {
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(91, 140, 255, 0.18), transparent 60%),
    radial-gradient(1000px 500px at 110% 10%, rgba(55, 211, 153, 0.12), transparent 60%),
    var(--bg);
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(11, 16, 32, 0.75);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--fg);
  text-decoration: none;
  font-size: 16px;
}

.nav-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--fg-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--fg); }

.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px 40px;
  text-align: center;
}

.hero h1 {
  margin: 0 0 12px 0;
  font-size: 44px;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #7aa5ff, #37d399);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero .subtitle {
  margin: 0 0 28px 0;
  font-size: 18px;
  color: var(--fg-dim);
}

.hero .meta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: center;
  font-size: 14px;
  color: var(--fg-dim);
  padding: 12px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.hero .meta strong { color: var(--fg); font-weight: 600; }

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 28px;
  margin-bottom: 24px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.card h2 {
  margin: 0 0 16px 0;
  font-size: 22px;
  letter-spacing: 0.2px;
}

.card h3 {
  margin: 16px 0 8px 0;
  font-size: 16px;
  letter-spacing: 0.2px;
}

.legend {
  color: var(--fg-dim);
  font-size: 13px;
  margin: -4px 0 16px 0;
}

.callouts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.callout {
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: var(--bg-card-2);
}

.callout.positive {
  border-color: var(--pos-border);
  background: linear-gradient(180deg, var(--pos-soft), transparent 120%);
}

.callout.negative {
  border-color: var(--neg-border);
  background: linear-gradient(180deg, var(--neg-soft), transparent 120%);
}

.callout-title {
  font-size: 13px;
  color: var(--fg-dim);
  margin-bottom: 6px;
  letter-spacing: 0.3px;
}

.callout-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.callout.positive .callout-value { color: var(--pos); }
.callout.negative .callout-value { color: var(--neg); }

.callout-note {
  font-size: 12px;
  color: var(--fg-dim);
  margin-top: 4px;
}

.insight, .sub-insight, .recommendation {
  margin-top: 20px;
  padding: 16px 18px;
  background: var(--bg-card-2);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
}

.insight h3, .recommendation h3 { margin-top: 0; }

.sub-insight p { margin: 6px 0; color: var(--fg-dim); }
.sub-insight strong { color: var(--fg); }
.sub-insight .warning { color: var(--warn); }

.table-wrap {
  overflow-x: auto;
  margin: 0 -4px;
}

table.results, table.matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

table.results th, table.results td,
table.matrix th, table.matrix td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

table.results th, table.matrix th {
  color: var(--fg-dim);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.03);
}

table.results th.num, table.results td.num { text-align: right; }

table.results tbody tr:hover,
table.matrix tbody tr:hover {
  background: rgba(91, 140, 255, 0.06);
}

.positive { color: var(--pos); }
.negative { color: var(--neg); }

.sig {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.sig.pos { color: var(--pos); }
.sig.neg { color: var(--neg); }

table.matrix td {
  min-width: 110px;
}

table.matrix .cell {
  font-variant-numeric: tabular-nums;
}

table.matrix .cell.pos b { color: var(--pos); }
table.matrix .cell.neg b { color: var(--neg); }

table.matrix .cell.pos.big { background: var(--pos-soft); }

table.matrix .tag {
  display: inline-block;
  margin-left: 4px;
  padding: 1px 6px;
  font-size: 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--fg-dim);
  letter-spacing: 0.3px;
}

table.matrix .cell.pos .tag { background: var(--pos-soft); color: var(--pos); }
table.matrix .cell.neg .tag { background: var(--neg-soft); color: var(--neg); }
table.matrix .cell .tag.dim { background: rgba(255,255,255,0.05); color: var(--fg-dim); }

.conclusion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.conclusion-block {
  padding: 16px 18px;
  background: var(--bg-card-2);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.conclusion-block h3 { margin-top: 0; }

.conclusion-block.positive {
  border-color: var(--pos-border);
}

.conclusion-block.warn {
  border-color: rgba(255, 204, 102, 0.35);
}

.conclusion-block ul {
  margin: 8px 0 0 0;
  padding-left: 20px;
}

.conclusion-block li {
  margin: 6px 0;
  color: var(--fg-dim);
}

.recommendation {
  border-left-color: var(--pos);
}

.methodology ul {
  margin: 0;
  padding-left: 20px;
  color: var(--fg-dim);
}

.methodology li { margin: 6px 0; }
.methodology code {
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--fg);
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.chart-card {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}

.chart-card h3 {
  margin: 0 0 10px 0;
  font-size: 14px;
  color: var(--fg);
  font-weight: 600;
}

.chart-wrap {
  position: relative;
  height: 220px;
}

.warning-note {
  margin: 12px 0 16px 0;
  padding: 12px 16px;
  background: rgba(255, 204, 102, 0.08);
  border-left: 3px solid var(--warn);
  border-radius: 6px;
  color: var(--fg-dim);
  font-size: 13px;
  line-height: 1.6;
}
.warning-note strong { color: var(--fg); }

.chart-note {
  margin-top: 14px;
  padding: 10px 14px;
  background: rgba(255, 204, 102, 0.08);
  border-left: 3px solid var(--warn);
  border-radius: 6px;
  color: var(--fg-dim);
  font-size: 13px;
}

@media (max-width: 520px) {
  .charts-grid { grid-template-columns: 1fr; }
  .chart-wrap { height: 200px; }
}

footer {
  text-align: center;
  color: var(--fg-dim);
  font-size: 13px;
  padding: 30px 20px;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
}

@media (max-width: 720px) {
  .hero h1 { font-size: 32px; }
  .callout-value { font-size: 24px; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 13px; }
  .card { padding: 20px 18px; }
}