:root {
  --guide-max: 1120px;
}

.guide-site-header {
  position: sticky;
  top: 10px;
}

.guide-main {
  width: min(var(--guide-max), calc(100% - 40px));
  margin: 0 auto;
  padding: 58px 0 72px;
}

.guide-breadcrumbs {
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 0.88rem;
}

.guide-breadcrumbs a {
  color: #a8c8ff;
}

.guide-breadcrumbs span {
  margin: 0 8px;
  color: #58708a;
}

.guide-hero {
  max-width: 900px;
  margin-bottom: 42px;
}

.guide-kicker {
  margin: 0 0 10px;
  color: #8bb7ff;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.guide-hero h1 {
  max-width: 980px;
  margin: 0 0 18px;
  font-size: clamp(2.5rem, 5.2vw, 4.7rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.guide-lead {
  max-width: 790px;
  margin: 0;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.7;
}

.guide-note,
.guide-warning,
.guide-recommendation {
  margin: 28px 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(13, 27, 43, 0.72);
}

.guide-note strong,
.guide-warning strong,
.guide-recommendation strong {
  display: block;
  margin-bottom: 5px;
}

.guide-note {
  border-color: rgba(59, 130, 246, 0.28);
}

.guide-warning {
  border-color: rgba(255, 159, 67, 0.34);
  background: rgba(255, 159, 67, 0.055);
}

.guide-recommendation {
  border-color: rgba(57, 217, 138, 0.28);
  background: rgba(57, 217, 138, 0.05);
}

.guide-grid,
.guide-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.guide-card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.guide-card {
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(13, 27, 43, 0.78);
  transition: transform 160ms ease, border-color 160ms ease;
}

.guide-card:hover {
  transform: translateY(-2px);
  border-color: rgba(139, 183, 255, 0.34);
}

.guide-card .guide-card-label {
  display: block;
  margin-bottom: 12px;
  color: #8bb7ff;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.guide-card h2,
.guide-card h3 {
  margin: 0 0 9px;
  font-size: 1.35rem;
  letter-spacing: -0.025em;
}

.guide-card p {
  margin: 0;
  color: var(--muted);
}

.guide-section {
  margin: 54px 0;
}

.guide-section > h2 {
  margin: 0 0 18px;
  font-size: clamp(1.8rem, 3.2vw, 2.75rem);
  line-height: 1.08;
}

.guide-section > p {
  max-width: 850px;
  color: var(--muted);
}

.guide-steps {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: guide-step;
}

.guide-steps li {
  position: relative;
  margin-bottom: 14px;
  padding: 18px 20px 18px 62px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(13, 27, 43, 0.72);
  counter-increment: guide-step;
}

.guide-steps li::before {
  content: counter(guide-step);
  position: absolute;
  left: 18px;
  top: 17px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #c8dcff;
  background: rgba(59, 130, 246, 0.16);
  font-weight: 900;
}

.guide-steps strong {
  color: var(--text);
}

.settings-group {
  margin: 34px 0;
}

.settings-group > h2 {
  margin-bottom: 8px;
}

.settings-group > p {
  color: var(--muted);
}

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

.setting-item {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(13, 27, 43, 0.72);
}

.setting-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 8px;
}

.setting-name {
  font-size: 1.04rem;
  font-weight: 900;
}

.setting-default {
  flex-shrink: 0;
  color: #8bb7ff;
  font-size: 0.82rem;
  font-weight: 800;
}

.setting-item p {
  margin: 0 0 8px;
  color: var(--muted);
}

.setting-advice {
  color: #c5d5e7;
  font-size: 0.92rem;
}

.setting-advice strong {
  color: #f6f9fc;
}

.guide-table-wrap {
  overflow-x: auto;
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
}

.guide-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: rgba(13, 27, 43, 0.72);
}

.guide-table th,
.guide-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.guide-table th {
  color: #b9d2ff;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.guide-table td {
  color: var(--muted);
}

.guide-table tr:last-child td {
  border-bottom: 0;
}

.guide-inline-code,
.guide-main code {
  padding: 2px 6px;
  border-radius: 6px;
  color: #c8dcff;
  background: rgba(59, 130, 246, 0.11);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.guide-nav-bottom {
  margin-top: 64px;
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
}

.guide-nav-bottom a {
  color: #a8c8ff;
  font-weight: 800;
}

.guide-footer {
  width: min(var(--guide-max), calc(100% - 40px));
}

@media (max-width: 900px) {
  .guide-card-grid {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 620px) {
  .guide-main {
    width: calc(100% - 24px);
    padding-top: 38px;
  }

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

  .guide-card {
    min-height: auto;
  }

  .setting-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .guide-nav-bottom {
    flex-direction: column;
  }
}