.page-hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.page-hero h1 { font-size: clamp(32px, 5vw, 52px); margin-bottom: 16px; }
.page-hero p { font-size: 17px; color: var(--slate); max-width: 540px; line-height: 1.65; }

.hs-data-source {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--unvalued); background: var(--unvalued-bg);
  padding: 7px 14px; border-radius: 7px; margin-top: 24px;
}
.hs-data-source i { font-size: 16px; color: var(--under); }

.steps-section { padding: 72px 0; border-bottom: 1px solid var(--line); }
.step-card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 32px 28px; height: 100%; }
.step-num { font-family: 'IBM Plex Mono', monospace; font-size: 11px; font-weight: 600; letter-spacing: .12em; color: var(--unvalued); margin-bottom: 16px; }
.step-icon { width: 48px; height: 48px; background: var(--under-bg); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.step-icon i { font-size: 24px; color: var(--under); }
.step-card h3 { font-size: 20px; margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--slate); line-height: 1.65; margin: 0; }

.formula-section { padding: 72px 0; background: var(--surface); border-bottom: 1px solid var(--line); }
.formula-box { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 32px; }
.formula-display {
  font-family: 'IBM Plex Mono', monospace; font-size: clamp(13px, 2vw, 17px);
  color: var(--ink); background: var(--surface); border: 1px solid var(--line);
  border-radius: 10px; padding: 20px 24px; margin: 24px 0; letter-spacing: .03em;
}
.formula-display span.op { color: var(--slate); }
.formula-display span.val { color: var(--under); font-weight: 500; }
.formula-term { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.formula-term:last-child { border-bottom: none; }
.formula-term-key { font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 600; color: var(--under); min-width: 130px; padding-top: 2px; }
.formula-term-desc { color: var(--slate); line-height: 1.55; }

.verdict-section { padding: 72px 0; border-bottom: 1px solid var(--line); }
.verdict-row { display: flex; align-items: flex-start; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.verdict-row:last-child { border-bottom: none; }
.verdict-row-label { flex-shrink: 0; width: 160px; }
.verdict-row-desc { font-size: 14px; color: var(--slate); line-height: 1.65; }

.faq-section { padding: 72px 0; border-bottom: 1px solid var(--line); background: var(--surface); }
.faq-item { padding: 20px 0; border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: none; }
.faq-question { font-size: 16px; margin-bottom: 8px; }
.faq-answer { font-size: 14px; color: var(--slate); line-height: 1.65; margin: 0; }

.cta-section { padding: 72px 0; text-align: center; }
.cta-section h2 { font-size: 32px; margin-bottom: 12px; }
.cta-section p { color: var(--slate); margin-bottom: 28px; }

@media (max-width: 767px) {
  .steps-section { padding: 48px 0; }
  .formula-section, .verdict-section, .cta-section { padding: 48px 0; }
  .page-hero { padding: 48px 0 36px; }
}