.installation-guide .header-inner {
  min-height: 80px;
}
.guide-home {
  color: var(--muted);
  font-size: 14px;
}
.guide-home:hover,
.guide-steps a,
.guide-note a,
.guide-help a {
  color: var(--green);
}
.guide-main {
  padding-top: 85px;
}
.guide-intro {
  max-width: 950px;
  padding-bottom: 90px;
}
.guide-intro h1 {
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1.05;
  letter-spacing: -0.06em;
  margin: 20px 0 30px;
}
.guide-lead {
  color: #c3ccbf;
  max-width: 690px;
  font-size: 21px;
  line-height: 1.65;
}
.guide-choices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 38px 0 24px;
}
.guide-choices a {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  transition: border-color 0.15s;
}
.guide-choices a:hover {
  border-color: var(--green);
}
.guide-choices span {
  color: var(--green);
  font-size: 12px;
}
.guide-choices b {
  margin-left: auto;
  font-weight: 400;
}
.guide-note {
  color: var(--muted);
  font-size: 14px;
  max-width: 770px;
}
.guide-section {
  display: grid;
  grid-template-columns: 1fr 1.7fr;
  gap: 65px;
  border-top: 1px solid var(--line);
  padding: 65px 0 80px;
  align-items: start;
}
.guide-section-title {
  position: sticky;
  top: 110px;
}
.guide-section h2,
.guide-help h2 {
  font-size: clamp(30px, 3.1vw, 44px);
  letter-spacing: -0.045em;
  line-height: 1.15;
  margin: 16px 0 28px;
}
.guide-section .button {
  white-space: normal;
}
.guide-prerequisite {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 26px;
  background: var(--panel);
}
.guide-steps h3 {
  font-size: 18px;
  margin: 0 0 10px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.guide-steps p {
  color: #bec7bb;
  margin: 0 0 14px;
  line-height: 1.8;
}
.guide-steps p:last-child {
  margin-bottom: 0;
}
.guide-steps ol {
  padding-left: 24px;
  margin: 0;
}
.guide-steps li {
  padding-left: 8px;
  margin-bottom: 28px;
}
.guide-steps li::marker {
  color: var(--green);
  font-size: 14px;
}
.guide-steps code {
  color: var(--text);
  font-size: 13px;
  overflow-wrap: anywhere;
}
.guide-steps .guide-warning {
  font-size: 14px;
  color: #d5c9a5;
  border-left: 2px solid #8c7844;
  padding-left: 16px;
  margin-top: 16px;
}
.guide-capture {
  margin: 22px 0 34px;
}
.guide-capture img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
}
.guide-capture figcaption {
  font-size: 12px;
  color: var(--muted);
  margin: 10px 0 0;
  line-height: 1.6;
}
.guide-prose h3:not(:first-child) {
  margin-top: 30px;
}
.guide-help {
  border-top: 1px solid var(--line);
  padding: 64px 0 70px;
}
.guide-faq {
  margin: 30px 0;
}
.guide-faq details {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}
.guide-faq summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 500;
}
.guide-faq p {
  color: var(--muted);
  max-width: 860px;
  line-height: 1.8;
  padding-left: 20px;
}
.guide-feedback {
  color: var(--muted);
  max-width: 860px;
}
.guide-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 30px;
  padding-bottom: 35px;
  font-size: 14px;
  color: var(--muted);
}
@media (max-width: 760px) {
  .guide-main {
    padding-top: 45px;
  }
  .guide-home {
    font-size: 12px;
  }
  .guide-intro {
    padding-bottom: 48px;
  }
  .guide-lead {
    font-size: 18px;
  }
  .guide-choices {
    grid-template-columns: 1fr;
    margin-top: 28px;
  }
  .guide-section {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 42px 0;
  }
  .guide-section-title {
    position: static;
  }
  .guide-section-title h2 br {
    display: none;
  }
  .guide-prerequisite {
    padding: 18px;
  }
  .guide-capture {
    margin-left: -8px;
    margin-right: -8px;
  }
  .guide-help {
    padding-top: 40px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .installation-guide {
    scroll-behavior: auto;
  }
  .guide-choices a {
    transition: none;
  }
}
.guide-terminal {
  margin: 16px 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.guide-terminal summary {
  cursor: pointer;
  color: var(--green);
  font-size: 14px;
}
.guide-terminal p {
  margin-top: 14px;
  font-size: 14px;
}
.guide-terminal pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.8;
}