/* QuickQ www site — sticky left rail + wide workspace */
:root {
  --side: #16351f;
  --side-ink: #e7f5ec;
  --accent: #2d6a4f;
  --accent-2: #40916c;
  --paper: #f3f7f4;
  --ink: #1c2b21;
  --muted: #4d6356;
  --cta: #1b4332;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 230px 1fr;
  font-family: "Trebuchet MS", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.7;
}

.site-header {
  grid-column: 1;
  grid-row: 1 / span 3;
  background: var(--side);
  color: var(--side-ink);
  padding: 28px 20px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  display: block;
  color: #fff;
  text-decoration: none;
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 28px;
}
.nav { display: flex; flex-direction: column; gap: 6px; }
.nav a {
  color: #cfe7d8;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 6px;
}
.nav a.current {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.hero, main, .site-footer { grid-column: 2; }
.hero {
  background: linear-gradient(90deg, #d8f3dc 0%, #f3f7f4 70%);
  padding: 36px 40px 28px;
}
.hero h1 {
  margin: 0 0 12px;
  font-size: 28px;
  max-width: 820px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 24px;
  align-items: start;
}
.dl-panel {
  background: #fff;
  border: 1px solid #cde3d5;
  padding: 18px;
  border-radius: 8px;
}
.dl-panel strong { display: block; margin-bottom: 10px; color: var(--accent); }

main { padding: 12px 40px 32px; }
.block {
  background: #fff;
  border: 1px solid #dce8e0;
  border-radius: 8px;
  padding: 22px 24px;
  margin: 16px 0;
}
h2 { margin: 0 0 12px; font-size: 21px; color: var(--accent); }
.btn {
  display: inline-block;
  background: var(--cta);
  color: #fff;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 6px;
  font-weight: 700;
}
.btn-ghost { color: var(--accent); font-weight: 700; margin-left: 10px; }
.split-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
ol.steps { padding-left: 20px; }
.faq-item { margin-bottom: 18px; }
.faq-item h3 { margin: 0 0 6px; font-size: 17px; }
.note { background: #e9f5ee; padding: 12px 14px; border-radius: 6px; }
.cta-box { text-align: left; }

.site-footer {
  background: #0f2418;
  color: #c9ddd2;
  padding: 22px 40px 28px;
  font-size: 13px;
}
.site-footer p { margin: 0 0 10px; }

@media (max-width: 900px) {
  body { grid-template-columns: 1fr; }
  .site-header { position: relative; height: auto; grid-row: auto; }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .hero, main, .site-footer { grid-column: 1; padding-left: 18px; padding-right: 18px; }
  .hero-grid, .split-2 { grid-template-columns: 1fr; }
}