:root {
  --help-hero-rule: rgba(var(--rgb-text), .1);
  --help-accent-soft: rgba(var(--rgb-accent), .08);
  --help-warning-soft: rgba(var(--rgb-warning), .1);
  --help-paper-glow: rgba(var(--rgb-white), .62);
  --help-dark-rule: rgba(var(--rgb-white), .12);
}

.help-hero {
  overflow-x: clip;
  border-bottom: 1px solid var(--color-line);
}

.help-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, .7fr);
  align-items: center;
  gap: clamp(40px, 8vw, 96px);
  padding-top: clamp(64px, 8vw, 96px);
  padding-bottom: clamp(64px, 8vw, 96px);
}

.help-hero-copy {
  max-width: 760px;
}

.help-hero-copy h1 {
  max-width: 700px;
}

.help-hero-copy > p {
  max-width: 720px;
  margin-bottom: 24px;
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 20px);
}

.help-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}

.help-route-note {
  position: relative;
  padding: 28px;
  overflow: hidden;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-text);
  box-shadow: var(--shadow-deck);
}

.help-route-note::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-coral), var(--color-warning));
  content: "";
}

.help-route-note::after {
  position: absolute;
  right: -36px;
  bottom: -42px;
  width: 130px;
  height: 130px;
  border: 1px dashed var(--help-dark-rule);
  border-radius: 50%;
  content: "";
}

.help-route-label {
  display: block;
  margin-bottom: 20px;
  color: var(--color-coral);
  font: 700 11px/1 var(--font-mono);
  letter-spacing: .14em;
}

.help-route-note ol {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.help-route-note li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid var(--help-dark-rule);
}

.help-route-note li span {
  color: var(--color-line);
  font: 600 11px/1.5 var(--font-mono);
}

.help-route-note li strong {
  color: var(--color-panel);
  font-size: 14px;
}

.help-document {
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: var(--section-space);
}

.help-document > .toc-tabs {
  top: calc(var(--header-height) + 8px);
}

.help-intro {
  display: grid;
  grid-template-columns: minmax(220px, .65fr) minmax(0, 1.35fr);
  gap: clamp(28px, 6vw, 72px);
  margin-bottom: clamp(64px, 9vw, 104px);
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--color-line);
  border-left-color: var(--color-warning);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(135deg, var(--help-warning-soft), transparent),
    var(--color-panel);
  box-shadow: var(--shadow-card);
}

.help-intro h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 3vw, 38px);
}

.help-intro p {
  margin: 0;
  color: var(--color-muted);
}

.help-category {
  display: grid;
  grid-template-columns: minmax(220px, .62fr) minmax(0, 1.38fr);
  gap: clamp(30px, 6vw, 76px);
  padding-top: clamp(48px, 7vw, 80px);
  padding-bottom: clamp(48px, 7vw, 80px);
  border-top: 1px solid var(--color-line);
}

.help-category-head {
  position: sticky;
  top: calc(var(--header-height) + 78px);
  align-self: start;
}

.help-category-index {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 6px 9px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-xs);
  background: var(--help-accent-soft);
  color: var(--color-accent-deep);
  font: 700 10px/1 var(--font-mono);
  letter-spacing: .14em;
}

.help-category-head h2 {
  margin-bottom: 12px;
  font-size: clamp(30px, 3.5vw, 42px);
}

.help-category-head p {
  margin: 0;
  color: var(--color-muted);
}

.help-category .faq-list {
  min-width: 0;
}

.help-category .faq-item {
  box-shadow: none;
}

.help-category .faq-item[open] {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.help-category .faq-item summary {
  font-size: 16px;
}

.help-category .faq-answer p {
  line-height: 1.85;
}

.help-more-link {
  grid-column: 2;
  margin: 22px 0 0;
  font-weight: 750;
}

.help-more-link a {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  text-decoration: none;
}

.help-document > .callout {
  margin-top: 0;
  margin-bottom: clamp(32px, 5vw, 56px);
}

.help-actions {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

@media (max-width: 900px) {
  .help-hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .help-route-note {
    max-width: 620px;
  }

  .help-intro,
  .help-category {
    grid-template-columns: minmax(0, 1fr);
  }

  .help-category-head {
    position: static;
  }

  .help-more-link,
  .help-actions {
    grid-column: 1;
  }
}

@media (max-width: 640px) {
  .help-hero-inner {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .help-route-note {
    padding: 22px;
  }

  .help-route-note li {
    grid-template-columns: 68px minmax(0, 1fr);
  }

  .help-document {
    padding-top: 28px;
  }

  .help-document > .toc-tabs {
    top: 0;
  }

  .help-intro {
    padding: 22px;
  }

  .help-category {
    gap: 24px;
  }

  .help-category .faq-item summary {
    padding-right: 46px;
  }

  .help-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .help-actions .btn {
    width: 100%;
  }
}