.guide-header {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px max(24px, calc((100vw - var(--max)) / 2));
  background: #111920;
  border-bottom: 1px solid #3c4c57;
}

.guide-layout {
  width: min(var(--max), calc(100% - 48px));
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 74px;
  margin: 0 auto;
  padding: 72px 0 110px;
}

.guide-nav {
  position: sticky;
  top: 28px;
  height: fit-content;
  padding-right: 28px;
  border-right: 1px solid #3d4d58;
}

.guide-nav nav { display: grid; }
.guide-nav nav a { padding: 9px 0; color: #c5d0d6; text-decoration: none; }
.guide-nav nav a:hover, .guide-nav nav a:focus-visible { color: var(--accent); }
.download-link { display: inline-block; margin-top: 28px; color: var(--accent); font-weight: 700; }

.guide-content { min-width: 0; max-width: 850px; }
.guide-intro { padding-bottom: 58px; border-bottom: 1px solid #3e4e59; }
.guide-intro h1 { margin: 0; font-size: clamp(48px, 8vw, 88px); line-height: 1; }
.guide-intro > p:last-child { max-width: 720px; margin: 24px 0 0; color: #c5d0d6; font-size: 20px; }
.guide-content section { padding: 62px 0; border-bottom: 1px solid #34434d; scroll-margin-top: 30px; }
.guide-content h2 { margin: 0 0 22px; font-size: clamp(30px, 4vw, 44px); }
.guide-content p, .guide-content li, .guide-content dd { color: #cbd5da; font-size: 17px; }
.guide-content li + li { margin-top: 10px; }
.guide-content dl { margin: 32px 0 0; }
.guide-content dl div { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 15px 0; border-top: 1px solid #3a4a54; }
.guide-content dt { color: var(--accent); font-weight: 750; }
.guide-content dd { margin: 0; }
.guide-warning { margin-top: 28px; padding: 20px; color: #eef3f5; background: #293640; border-left: 4px solid var(--danger); }
.guide-table-wrap { overflow-x: auto; }
.guide-content table { width: 100%; border-collapse: collapse; }
.guide-content th, .guide-content td { padding: 14px 16px; text-align: left; border-bottom: 1px solid #455661; }
.guide-content th { color: var(--accent); background: #202b33; }
.guide-content td { color: #d2dbe0; }
.guide-contact { padding-top: 64px; }
.guide-contact h2 { margin: 0; }
.guide-contact a { color: var(--accent); font-size: 20px; font-weight: 750; overflow-wrap: anywhere; }

@media (max-width: 780px) {
  .guide-header .button { min-height: 40px; padding: 8px 12px; font-size: 13px; }
  .guide-layout { grid-template-columns: 1fr; gap: 42px; }
  .guide-nav { position: static; padding: 0 0 28px; border-right: 0; border-bottom: 1px solid #3d4d58; }
  .guide-nav nav { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  .guide-layout { width: calc(100% - 32px); padding-top: 50px; }
  .guide-header { padding-right: 16px; padding-left: 16px; }
  .guide-header .brand { font-size: 18px; }
  .guide-header .brand img { width: 32px; height: 32px; }
  .guide-content dl div { grid-template-columns: 1fr; gap: 4px; }
}