body {
  margin: 0;
  color: #153556;
  background: #f8fafc;
  font-family: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

.guide-page {
  padding-top: 70px;
}

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

.seo-crawl-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.guide-hero {
  background:
    linear-gradient(135deg, rgba(15, 40, 70, 0.92), rgba(21, 53, 86, 0.88)),
    url('../../img/banner.webp') center / cover;
  color: #ffffff;
  padding: 72px 0 64px;
}

.guide-kicker {
  margin: 0 0 12px;
  color: #facc15;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guide-hero h1 {
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1.1;
  font-weight: 800;
}

.guide-intro {
  max-width: 760px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.08rem;
  line-height: 1.8;
}

.guide-seo-summary,
.guide-static-faq {
  padding: 36px 0 0;
}

.guide-seo-summary h2,
.guide-static-faq h2 {
  margin: 0 0 16px;
  color: #0f2846;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  font-weight: 800;
}

.guide-seo-summary p,
.guide-static-faq p {
  color: #334155;
  line-height: 1.85;
}

.guide-seo-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.guide-seo-facts div {
  background: #ffffff;
  border: 1px solid #e5edf5;
  border-radius: 8px;
  padding: 18px;
}

.guide-seo-facts h3 {
  margin: 0 0 8px;
  color: #153556;
  font-size: 1rem;
}

.guide-static-faq {
  padding-bottom: 52px;
}

.guide-static-faq details {
  background: #ffffff;
  border: 1px solid #e5edf5;
  border-radius: 8px;
  margin-bottom: 12px;
  padding: 16px 18px;
}

.guide-static-faq summary {
  color: #153556;
  cursor: pointer;
  font-weight: 800;
}

.guide-topic-links {
  padding: 0 0 64px;
}

.guide-topic-links h2 {
  margin: 0 0 16px;
  color: #0f2846;
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  font-weight: 800;
}

.guide-topic-link-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.guide-topic-link-grid a {
  display: block;
  min-height: 74px;
  padding: 14px 16px;
  color: #153556;
  background: #ffffff;
  border: 1px solid #e5edf5;
  border-radius: 8px;
  text-decoration: none;
  line-height: 1.5;
}

.guide-topic-link-grid a:hover {
  border-color: #153556;
  background: #f8fbff;
}

.guide-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 28px;
  padding: 40px 0 64px;
  align-items: start;
}

.guide-sidebar {
  position: sticky;
  top: 92px;
  background: #ffffff;
  border: 1px solid #e5edf5;
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(15, 40, 70, 0.06);
  overflow: hidden;
}

.guide-sidebar-title {
  padding: 18px 20px;
  color: #ffffff;
  background: #153556;
  font-weight: 700;
}

.guide-question-group {
  border-bottom: 1px solid #eef3f7;
}

.guide-question-category {
  padding: 14px 20px 8px;
  color: #64748b;
  background: #f8fafc;
  font-size: 0.82rem;
  font-weight: 800;
}

.guide-question-link {
  display: block;
  width: 100%;
  padding: 13px 20px 13px 28px;
  color: #153556;
  background: #ffffff;
  border: 0;
  border-bottom: 1px solid #eef3f7;
  text-align: left;
  line-height: 1.5;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.guide-question-link:hover,
.guide-question-link.active {
  color: #0f2846;
  background: #fff7d6;
}

.guide-detail {
  min-height: 520px;
  background: #ffffff;
  border: 1px solid #e5edf5;
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(15, 40, 70, 0.06);
  padding: clamp(24px, 4vw, 44px);
}

.guide-category {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #153556;
  background: #eef4f9;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.88rem;
  font-weight: 700;
}

.guide-detail h2 {
  margin: 20px 0 18px;
  color: #0f2846;
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  line-height: 1.25;
}

.guide-answer {
  color: #334155;
  font-size: 1.02rem;
  line-height: 1.9;
}

.guide-answer p {
  margin: 0 0 16px;
}

.guide-answer ul {
  margin: 12px 0 18px;
  padding-left: 22px;
}

.guide-answer li {
  margin: 8px 0;
}

.guide-note {
  margin-top: 28px;
  padding: 18px 20px;
  color: #153556;
  background: #f8fafc;
  border-left: 4px solid #facc15;
  line-height: 1.8;
}

.guide-question-page {
  min-height: 100vh;
  background: #f5f7fb;
  padding-bottom: 56px;
}

.guide-question-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  margin-top: 32px;
}

.guide-question-article,
.guide-related-panel {
  background: #ffffff;
  border: 1px solid #e6edf5;
  border-radius: 8px;
  box-shadow: 0 8px 26px rgba(21, 53, 86, 0.08);
}

.guide-question-article {
  padding: 36px;
}

.guide-question-article h1 {
  margin: 10px 0 22px;
  color: #153556;
  font-size: clamp(2rem, 3vw, 3.2rem);
  line-height: 1.18;
  font-weight: 800;
}

.guide-question-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  color: #153556;
  font-weight: 700;
  text-decoration: none;
}

.guide-related-panel {
  align-self: start;
  position: sticky;
  top: 92px;
  padding: 22px;
}

.guide-related-panel h2 {
  margin: 0 0 16px;
  color: #153556;
  font-size: 1.1rem;
  font-weight: 800;
}

.guide-related-list {
  display: grid;
  gap: 12px;
}

.guide-related-list a {
  display: grid;
  gap: 5px;
  padding: 12px;
  border: 1px solid #e6edf5;
  border-radius: 8px;
  color: #243b53;
  text-decoration: none;
  line-height: 1.45;
}

.guide-related-list a:hover {
  border-color: #153556;
  color: #153556;
  background: #f8fbff;
}

.guide-related-list span {
  color: #7b8ca0;
  font-size: 0.82rem;
}


@media (max-width: 860px) {
  .guide-shell {
    grid-template-columns: 1fr;
  }

  .guide-sidebar {
    position: static;
  }

  .guide-seo-facts {
    grid-template-columns: 1fr;
  }

  .guide-topic-link-grid {
    grid-template-columns: 1fr;
  }

  .guide-question-layout {
    grid-template-columns: 1fr;
  }

  .guide-related-panel {
    position: static;
  }

  .guide-question-article {
    padding: 24px;
  }
}