.rk-buy-page {
  margin-block-start: 0;
  color: var(--ink-900);
}

.buy-hero {
  position: relative;
  overflow: hidden;
  padding: var(--rk-page-top-space) 0 var(--rk-section-space);
  border-bottom: 1px solid #e2e6eb;
  background: #f7f8fa;
}

.buy-hero::before {
  content: none;
}

.buy-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(320px, .52fr);
  gap: 52px;
  align-items: center;
}

.buy-hero h1 {
  max-width: 800px;
  margin: 0 0 20px;
  font-size: clamp(38px, 4.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -.045em;
}

.buy-hero .lead {
  max-width: 720px;
  color: var(--ink-700);
  font-size: 19px;
}

.buy-guide-card {
  padding: 26px;
  border: 1px solid var(--ink-300);
  border-radius: var(--radius-lg);
  background: var(--surface-0);
  box-shadow: none;
}

.buy-guide-card h2 {
  margin: 22px 0 12px;
  font-size: 22px;
}

.buy-price-label {
  margin: 0 0 7px;
  color: var(--brand-primary-700);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.buy-price {
  display: flex;
  gap: 8px 12px;
  align-items: baseline;
  flex-wrap: wrap;
}

.buy-price-amount,
.buy-price-term,
.buy-price-note {
  margin: 0;
}

.buy-price-amount {
  color: var(--ink-900);
  font-size: clamp(34px, 4vw, 46px);
  font-weight: 750;
  line-height: 1;
  letter-spacing: -.035em;
}

.buy-price-term {
  color: var(--ink-700);
  font-size: 15px;
  font-weight: 650;
}

.buy-price-note {
  margin-top: 12px;
  color: var(--ink-500);
  font-size: 13px;
  line-height: 1.55;
}

.buy-guide-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--ink-700);
}

.buy-guide-card li + li {
  margin-top: 9px;
}

.buy-section {
  padding: var(--rk-section-space) 0;
}

.buy-body-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, .8fr);
  gap: 52px;
  align-items: start;
}

.buy-steps h2 {
  margin: 0 0 28px;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.08;
}

.buy-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 18px;
  padding: 24px 0;
  border-top: 1px solid var(--ink-300);
}

.buy-step:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.buy-step-number {
  margin: 0;
  color: var(--brand-primary-700);
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
}

.buy-step h3 {
  margin: 0 0 8px;
  font-size: 21px;
}

.buy-step p {
  margin: 0;
  color: var(--ink-700);
}

.buy-request-panel {
  position: sticky;
  top: 24px;
  padding: 30px;
}

.buy-email {
  margin-top: 18px;
  color: var(--ink-500);
  font-size: 14px;
}

.buy-help {
  padding: min(52px, var(--rk-section-space)) 0;
  border-top: 1px solid #e2e6eb;
  background: var(--surface-50);
}

.buy-help-inner {
  gap: 24px;
}

.buy-help h2 { margin: 0 0 6px; }
.buy-help p { margin: 0; color: var(--ink-700); }

@media (max-width: 900px) {
  .buy-hero-grid,
  .buy-body-grid { grid-template-columns: 1fr; }

  .buy-request-panel { position: static; }
}

@media (max-width: 560px) {
  .buy-hero { padding: var(--rk-page-top-space) 0 var(--rk-section-space); }
  .buy-section { padding: var(--rk-section-space) 0; }
  .buy-step { grid-template-columns: 1fr; }
}