:root {
  --coral: #E07A5F;
  --coral-dim: #C4624A;
  --ink: #242428;
  --ink-2: #2C2C32;
  --ink-3: #35353C;
  --paper: #F4F1EE;
  --muted: #B8B3AD;
  --line: #3F3F46;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--ink);
  color: var(--paper);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  font-size: 16px;
}

a {
  color: var(--coral);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0 14px;
  border-bottom: 2px solid var(--coral);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  justify-content: flex-end;
}

.nav a {
  color: var(--paper);
  font-size: 13px;
}

.hero {
  padding: 36px 0 28px;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.25;
  max-width: 18em;
}

.hero p {
  margin: 0 0 12px;
  max-width: 46em;
  color: var(--muted);
}

.bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
  padding-bottom: 28px;
}

.cell {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 22px 20px;
}

.cell h2 {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.35;
  color: var(--coral);
}

.cell p {
  margin: 0 0 12px;
}

.cell p:last-child {
  margin-bottom: 0;
}

.wide {
  grid-column: span 8;
}

.narrow {
  grid-column: span 4;
}

.mid {
  grid-column: span 6;
}

.full {
  grid-column: span 12;
}

.tall {
  grid-row: span 2;
}

.svg-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 14px 0;
}

.svg-card {
  background: var(--ink-3);
  border-radius: 14px;
  padding: 12px 14px;
  min-width: 140px;
  flex: 1;
}

.svg-card svg {
  display: block;
  margin-bottom: 8px;
}

.svg-card span {
  display: block;
  font-size: 13px;
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 16px 0 8px;
  counter-reset: step;
}

.steps li {
  list-style: none;
  background: var(--ink);
  border-left: 3px solid var(--coral);
  padding: 10px 12px;
  font-size: 14px;
}

.steps {
  padding: 0;
}

.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 14px 0;
}

.pair div {
  background: var(--ink);
  border-radius: 12px;
  padding: 12px 14px;
}

.pair h3 {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--coral);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 12px 0;
}

th,
td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
}

th {
  background: var(--ink);
  color: var(--coral);
}

.faq {
  padding: 8px 0 36px;
}

.faq h2 {
  color: var(--coral);
  font-size: 22px;
}

.faq article {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}

.faq h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.faq p {
  margin: 0 0 8px;
  color: var(--muted);
}

.foot {
  border-top: 2px solid var(--coral);
  padding: 22px 0 36px;
  color: var(--muted);
  font-size: 13px;
}

.foot p {
  margin: 0 0 8px;
}

@media (max-width: 900px) {
  .top {
    flex-direction: column;
    align-items: flex-start;
  }

  .wide,
  .narrow,
  .mid,
  .full {
    grid-column: span 12;
  }

  .tall {
    grid-row: auto;
  }

  .steps,
  .pair {
    grid-template-columns: 1fr;
  }
}