/* ============ 计算器页专属样式 ============ */
.nav-link {
  color: var(--text-1); text-decoration: none; font-size: 13px;
  background: var(--bg-2); padding: 8px 16px; border-radius: 10px;
  border: 1px solid var(--line); transition: all .15s;
}
.nav-link:hover { color: var(--green); border-color: var(--green); }

#calc-layout {
  max-width: 1200px; margin: 0 auto; padding: 18px 20px 40px;
  display: flex; flex-direction: column; gap: 18px;
}

.calc-card {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 16px; padding: 20px 22px;
}
.calc-card h2 {
  font-size: 17px; margin-bottom: 16px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
}
.calc-card h2 i { color: var(--green); }
.calc-card h2 small { font-size: 12px; color: var(--text-1); font-weight: 400; font-family: 'Rajdhani'; }

.calc-grid {
  display: grid; grid-template-columns: 340px 1fr; gap: 22px; align-items: start;
}

.calc-controls .field-label { margin-top: 14px; }
.calc-controls .field-label:first-child { margin-top: 0; }
.calc-controls .field-label b { font-family: 'Rajdhani'; font-size: 15px; }
.gold { color: var(--gold); }
.green { color: var(--green); }
.red { color: var(--red); }

input[type="range"] {
  width: 100%; accent-color: var(--green); margin: 6px 0 4px; cursor: pointer;
}

.stat-cards {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px;
}
.stat-card {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px; display: flex; flex-direction: column; gap: 3px;
}
.stat-label { font-size: 11px; color: var(--text-1); }
.stat-value { font-family: 'Rajdhani'; font-size: 22px; font-weight: 700; }
.stat-sub { font-size: 10px; color: var(--text-1); opacity: .8; }

.chart-box {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 12px; padding: 12px; position: relative;
}

.insight {
  margin-top: 16px; font-size: 13px; line-height: 1.8; color: var(--text-1);
  background: rgba(255, 201, 60, 0.06); border-left: 3px solid var(--gold);
  border-radius: 0 10px 10px 0; padding: 10px 14px;
}
.insight b { color: var(--gold); }

#run-mc-btn { margin-top: 16px; }

.calc-footer {
  text-align: center; color: var(--text-1); font-size: 12px; padding: 20px 0 30px;
}

@media (max-width: 900px) {
  .calc-grid { grid-template-columns: 1fr; }
}