/* QuickQ static site design system */
:root {
  --bg: #060b18;
  --bg-2: #0b1428;
  --card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.1);
  --fg: #eaf1ff;
  --muted: #9bb0d1;
  --brand: #2071ff;
  --brand-2: #38d0ff;
  --radius: 16px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(32, 113, 255, 0.35), transparent 60%),
    radial-gradient(700px 400px at 0% 10%, rgba(56, 208, 255, 0.18), transparent 60%),
    var(--bg);
  color: var(--fg);
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; border-radius: 12px; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(6, 11, 24, 0.75);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; gap: 24px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: 0.5px; }
.logo-mark {
  width: 28px; height: 28px; border-radius: 9px;
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  box-shadow: 0 0 18px rgba(32, 113, 255, 0.7);
}
.nav-links { display: flex; gap: 22px; margin-left: 10px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-size: 15px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #fff; }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.lang { display: flex; gap: 6px; font-size: 13px; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 4px 10px; }
.lang a[aria-current="true"] { color: #fff; font-weight: 700; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 999px; font-weight: 700; font-size: 15px;
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  color: #fff; box-shadow: 0 10px 30px rgba(32, 113, 255, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(32, 113, 255, 0.5); }
.btn-ghost { background: transparent; border: 1px solid var(--border); box-shadow: none; color: var(--fg); }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* Sections */
section { padding: 84px 0; }
.hero { padding: 80px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-block; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--brand-2); margin-bottom: 14px; }
h1 { font-size: clamp(32px, 5vw, 54px); line-height: 1.15; margin: 0 0 18px; }
h2 { font-size: clamp(26px, 3.4vw, 38px); margin: 0 0 14px; }
h3 { font-size: 19px; margin: 0 0 8px; }
p.lead { font-size: 18px; color: var(--muted); max-width: 620px; }
.muted { color: var(--muted); }
.center { text-align: center; }
.center p.lead { margin-inline: auto; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }

/* Cards + grids */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
}
.card:hover { border-color: rgba(56, 208, 255, 0.45); }
.icon {
  width: 42px; height: 42px; border-radius: 12px; margin-bottom: 14px;
  background: linear-gradient(135deg, rgba(56, 208, 255, 0.25), rgba(32, 113, 255, 0.4));
  border: 1px solid var(--border);
}
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 46px; }
.stat { text-align: center; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; background: var(--card); }
.stat b { display: block; font-size: 30px; background: linear-gradient(135deg, var(--brand-2), var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { font-size: 14px; color: var(--muted); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.list { list-style: none; padding: 0; margin: 18px 0 0; }
.list li { position: relative; padding-left: 26px; color: var(--muted); margin-bottom: 10px; }
.list li::before { content: ""; position: absolute; left: 0; top: 10px; width: 10px; height: 10px; border-radius: 50%; background: var(--brand-2); box-shadow: 0 0 10px var(--brand-2); }

/* Pricing */
.plan { position: relative; }
.plan.best { border-color: var(--brand); box-shadow: 0 20px 60px rgba(32, 113, 255, 0.25); }
.badge { position: absolute; top: -13px; left: 26px; background: linear-gradient(135deg, var(--brand-2), var(--brand)); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.price { font-size: 40px; font-weight: 800; margin: 10px 0 2px; }
.price small { font-size: 15px; font-weight: 500; color: var(--muted); }

/* Tables & FAQ */
table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
th, td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--border); font-size: 15px; }
th { color: #fff; background: rgba(255, 255, 255, 0.05); }
td { color: var(--muted); }
details { border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; background: var(--card); margin-bottom: 12px; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }

/* Banner */
.banner {
  border-radius: 24px; padding: 54px 40px; text-align: center;
  background: linear-gradient(135deg, rgba(32, 113, 255, 0.35), rgba(56, 208, 255, 0.18));
  border: 1px solid var(--border);
}

/* Footer */
footer { border-top: 1px solid var(--border); padding: 52px 0 34px; background: var(--bg-2); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
footer h4 { margin: 0 0 12px; font-size: 15px; }
footer a { color: var(--muted); font-size: 14px; display: block; margin-bottom: 8px; }
footer a:hover { color: #fff; }
.copyright { margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; text-align: center; }

@media (max-width: 900px) {
  .hero-grid, .split, .g2, .g3, .g4, .stats, .foot-grid { grid-template-columns: 1fr; }
  .nav { height: auto; flex-wrap: wrap; padding: 12px 0; gap: 12px; }
  .nav-right { margin-left: 0; }
  section { padding: 56px 0; }
}