/* Site 5 — web: sharp split-lab, purple, 4-column icon row */
:root {
  --bg: #f5f3ff;
  --ink: #1e1333;
  --sub: #564472;
  --line: #d8d0ef;
  --violet: #5b21b6;
  --violet-2: #7c3aed;
  --go: #047857;
  --white: #fff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, "Helvetica Neue", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  font-size: 16px;
}
a { color: var(--violet); }
.bar {
  background: var(--violet);
  color: #fff;
}
.bar-inner {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { color: #fff; font-weight: 800; text-decoration: none; font-size: 20px; letter-spacing: 0.4px; }
.nav a {
  color: #ddd6fe;
  text-decoration: none;
  margin-left: 16px;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.nav a.current { color: #fff; box-shadow: inset 0 -3px 0 #fff; padding-bottom: 4px; }
.hero-split {
  width: min(1200px, calc(100% - 32px));
  margin: 24px auto 8px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--white);
  border: 2px solid var(--ink);
}
.hero-split .copy, .hero-split .panel { padding: 36px 32px; }
.hero-split .panel { background: #1e1333; color: #ece7ff; }
.hero-split h1 { font-size: 30px; margin: 0 0 12px; line-height: 1.3; }
.kicker { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--violet-2); font-weight: 700; margin-bottom: 8px; }
.lead { color: var(--sub); margin: 0 0 16px; }
.quad {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 12px 0 18px;
}
.quad span {
  border: 1px solid var(--line);
  padding: 10px 8px;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
}
.btn {
  display: inline-block;
  padding: 12px 16px;
  text-decoration: none;
  font-weight: 800;
  margin: 0 8px 8px 0;
  border-radius: 0;
}
.btn-primary { background: var(--go); color: #fff; }
.btn-ghost { border: 2px solid #fff; color: #fff; }
.btn-line { border: 2px solid var(--violet); color: var(--violet); background: #fff; }
.stack { width: min(1200px, calc(100% - 32px)); margin: 0 auto 40px; }
.block {
  background: #fff;
  border: 2px solid var(--line);
  margin: 18px 0;
  padding: 24px 24px 8px;
}
.block h2 {
  margin: 0 0 12px;
  font-size: 22px;
  color: var(--violet);
}
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.step {
  border: 2px solid var(--ink);
  padding: 14px;
  min-height: 120px;
}
.step b { display: block; font-size: 28px; color: var(--violet-2); }
table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
th, td { border: 2px solid var(--line); padding: 8px 10px; text-align: left; }
th { background: #ede9fe; }
.faq-item { padding: 12px 0; border-top: 2px solid var(--line); }
.faq-item h3 { margin: 0 0 6px; font-size: 16px; }
.site-footer {
  background: #1e1333;
  color: #ddd6fe;
  padding: 28px 0;
  font-size: 13px;
}
.site-footer .stack { margin-bottom: 0; }
.site-footer a { color: #c4b5fd; }
.site-footer p { margin: 0 0 8px; }
.ico { width: 16px; height: 16px; vertical-align: -3px; margin-right: 5px; }
@media (max-width: 880px) {
  .hero-split, .quad, .steps { grid-template-columns: 1fr; }
  .bar-inner { flex-direction: column; padding: 10px 0; }
  .nav a { margin: 0 8px; }
}