:root {
  --deepdoc-reading-width: 920px;
  --deepdoc-table-width: 840px;
  --deepdoc-card-min: 240px;
  --deepdoc-hero-space: clamp(70px, 9vw, 126px);
  --deepdoc-copy-gap: 1.24em;
}

.doc-hero {
  position: relative;
  padding-top: var(--deepdoc-hero-space);
  padding-bottom: clamp(48px, 7vw, 88px);
  overflow: hidden;
  border-bottom: 1px solid var(--color-border-soft);
  background:
    radial-gradient(ellipse at 18% 12%, var(--color-navy-glow), var(--color-transparent) 46%),
    linear-gradient(145deg, var(--color-glass-light), var(--color-transparent));
}

.doc-hero::before {
  position: absolute;
  top: -26%;
  right: -14%;
  width: min(620px, 72vw);
  aspect-ratio: 1;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-pill);
  box-shadow:
    0 0 0 42px var(--color-grid),
    0 0 0 84px var(--color-grid);
  content: "";
  pointer-events: none;
}

.doc-hero .reading-wrap {
  position: relative;
  z-index: 1;
  max-width: calc(var(--deepdoc-reading-width) + (var(--gutter) * 2));
}

.doc-hero h1 {
  max-width: 900px;
  margin-top: 18px;
  font-size: clamp(46px, 6vw, 76px);
}

.doc-hero .lead {
  max-width: 820px;
}

.doc-fact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 26px;
}

.doc-route-note {
  max-width: 820px;
  margin: 25px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--color-border-soft);
  font-size: 14px;
}

.doc-route-note a {
  color: var(--color-accent-light);
  text-decoration: underline;
  text-decoration-color: var(--color-accent-dark);
  text-underline-offset: 0.2em;
}

.guide-article {
  width: 100%;
}

.guide-article .reading-wrap {
  max-width: calc(var(--deepdoc-reading-width) + (var(--gutter) * 2));
}

.guide-article section {
  border-bottom: 1px solid var(--color-border-soft);
}

.guide-article section:last-child {
  border-bottom: 0;
}

.guide-article h2 {
  max-width: 820px;
  margin-bottom: 34px;
}

.guide-article h3 {
  margin-top: 42px;
}

.guide-article h2 + h3 {
  margin-top: 0;
}

.guide-article p {
  margin-bottom: var(--deepdoc-copy-gap);
}

.guide-article .table-scroll {
  margin-block: 34px;
}

.guide-article .data-table {
  min-width: var(--deepdoc-table-width);
}

.guide-article pre {
  margin-block: 26px;
}

.support-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-block: 34px;
}

.support-flow-item {
  padding: 20px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, var(--color-glass-light), var(--color-transparent)),
    var(--color-panel);
  box-shadow: inset 0 1px 0 var(--color-border-soft);
}

.support-flow-item strong {
  display: block;
  margin-bottom: 8px;
}

.support-flow-item p {
  margin-bottom: 0;
  font-size: 13px;
}

.check-panel {
  margin-block: 36px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-border-bright);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 90% 10%, var(--color-accent-faint), var(--color-transparent) 32%),
    var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.check-panel h3 {
  margin-top: 0;
}

.check-panel .check-list {
  margin-bottom: 0;
}

.check-panel .check-list li {
  overflow-wrap: anywhere;
}

.decision-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(var(--deepdoc-card-min), 1fr));
  gap: 14px;
  margin-block: 38px;
}

.decision-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 23px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(155deg, var(--color-navy-faint), var(--color-transparent) 54%),
    var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.decision-card .badge {
  align-self: flex-start;
}

.decision-card h3 {
  margin: 20px 0 8px;
  font-size: 20px;
}

.decision-card p {
  margin-bottom: 0;
  font-size: 14px;
}

.doc-end-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 42px;
  padding-top: 30px;
  border-top: 1px solid var(--color-border-soft);
}

@media (max-width: 900px) {
  .support-flow,
  .decision-grid {
    grid-template-columns: 1fr;
  }

  .doc-hero::before {
    right: -34%;
  }
}

@media (max-width: 640px) {
  .doc-hero {
    padding-top: 58px;
    padding-bottom: 48px;
  }

  .doc-hero h1 {
    font-size: clamp(39px, 12vw, 54px);
  }

  .doc-route-note {
    font-size: 13px;
  }

  .guide-article h2 {
    margin-bottom: 28px;
  }

  .guide-article h3 {
    margin-top: 34px;
  }

  .support-flow-item,
  .decision-card {
    padding: 20px;
  }

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

  .doc-end-actions .button {
    width: 100%;
  }
}