.install-main { padding-block: clamp(2rem, 6vw, 5rem); }
.install-document { max-width: 68rem; }
.install-hero { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: var(--space-8); padding-bottom: var(--space-8); border-bottom: 1px solid var(--line); }
.install-hero h1 { max-width: 48rem; margin-bottom: var(--space-4); font-size: clamp(2.2rem, 6vw, 4.5rem); line-height: .98; }
.install-hero p:last-child { max-width: 42rem; color: var(--ink-soft); font-size: clamp(1rem, 2vw, 1.2rem); }
.install-hero img { border-radius: 22%; }
.device-advice { margin: var(--space-6) 0 var(--space-4); padding: var(--space-4); border-left: 4px solid var(--blue); background: var(--surface-soft); color: var(--ink); font-weight: 700; }
.install-jump { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.install-platform { margin-top: var(--space-12); scroll-margin-top: var(--space-8); }
.install-platform.is-recommended { padding: var(--space-6); outline: 3px solid rgb(26 91 168 / 18%); outline-offset: 4px; }
.install-platform h2 { margin-bottom: var(--space-5); font-size: clamp(1.5rem, 3vw, 2rem); }
.install-platform h2:not(:first-of-type) { margin-top: var(--space-10); }
.install-steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); list-style: none; counter-reset: install-step; }
.install-steps li { min-height: 14rem; padding: var(--space-5); display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-4); border: 1px solid var(--line); background: var(--surface); counter-increment: install-step; }
.install-steps li::before { content: counter(install-step); width: 2rem; height: 2rem; display: grid; place-items: center; border-radius: 50%; color: white; background: var(--blue); font-weight: 850; }
.install-step__icon { width: 4rem; height: 4rem; display: grid; place-items: center; color: var(--blue); background: var(--surface-soft); }
.install-step__icon svg { width: 3rem; height: 3rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.install-steps strong { max-width: 18rem; font-size: 1.05rem; line-height: 1.35; }
.install-result { margin-top: var(--space-12); padding: var(--space-6); display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); border-left: 5px solid #16834b; background: #e7f5ec; }
.install-result h2 { margin-bottom: var(--space-2); font-size: clamp(1.4rem, 3vw, 2rem); }
.install-result p:last-child { max-width: 42rem; margin: 0; }
@media (max-width: 44rem) {
  .install-hero { grid-template-columns: 1fr; }
  .install-hero img { width: 76px; height: 76px; grid-row: 1; }
  .install-steps { grid-template-columns: 1fr; }
  .install-steps li { min-height: 0; display: grid; grid-template-columns: auto 1fr; align-items: center; }
  .install-steps li::before { grid-row: span 2; }
  .install-step__icon { width: 3.25rem; height: 3.25rem; }
  .install-step__icon svg { width: 2.4rem; height: 2.4rem; }
  .install-result { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: no-preference) {
  .install-platform:target { animation: install-highlight 1.2s ease-out; }
}
@keyframes install-highlight {
  from { background: #eaf3fb; }
  to { background: transparent; }
}