.installation-guide { max-width: 1080px; margin: 0 auto 32px; line-height: 1.75; }
.installation-guide h1, .installation-guide h2, .installation-guide h3 { letter-spacing: 0; }
.installation-guide h1 { font-size: 28px; }
.installation-guide h2 { font-size: 19px; font-weight: 650; }
.installation-guide h3 { font-size: 16px; font-weight: 650; }
.guide-back { display: inline-flex; align-items: center; gap: 7px; color: var(--green); }
.guide-back .icon { width: 16px; height: 16px; transform: rotate(180deg); }
.guide-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin: 0 0 24px; }
.guide-heading p { color: var(--muted); margin-top: 6px; }
.guide-heading > a { min-height: 42px; font-size: 13px; }
.guide-quick-links { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: -8px 0 18px; }
.installation-guide .guide-quick-links a { display: inline-flex; color: var(--green); font-size: 14px; padding: 8px 0; text-decoration: underline; text-underline-offset: 4px; }
.guide-preflight { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 20px 0 22px; }
.guide-preflight ul { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 26px; padding: 0; margin: 16px 0 0; list-style: none; }
.guide-preflight strong { display: block; margin-bottom: 5px; font-size: 14px; font-weight: 600; }
.guide-preflight span { display: block; font-size: 13px; color: #63736b; }
.installation-guide .guide-device-nav { display: flex; flex: none; gap: 25px; justify-content: flex-start; margin: 24px 0; border-bottom: 1px solid var(--line); }
.installation-guide .guide-choice { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 8px 4px; font-size: 14px; color: #66756d; border-bottom: 2px solid transparent; }
.installation-guide .guide-choice.active { color: var(--green); font-weight: 600; border-color: var(--green); }
.guide-instructions-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.guide-instructions-heading p { color: var(--muted); font-size: 12px; margin-top: 5px; }
.installation-guide .guide-method-nav { display: flex; flex: none; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
.installation-guide .guide-method-nav .guide-choice { min-height: 36px; padding: 5px 13px; font-size: 13px; border: 0; border-radius: 4px; }
.installation-guide .guide-method-nav .guide-choice.active { background: var(--pale); color: var(--green); }
.guide-note { font-size: 13px; color: #63736b; margin: 15px 0 0; }
.guide-format { font-size: 13px; padding: 13px 0; border-bottom: 1px solid var(--line); color: #63736b; overflow-wrap: anywhere; }
.guide-format code { color: var(--ink); font-size: 13px; }
.installation-guide .guide-steps { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); align-items: stretch; gap: 18px; list-style: none; padding: 0; margin: 22px 0; }
.guide-step { min-width: 0; padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: #fff; display: flex; flex-direction: column; gap: 16px; }
.guide-step-copy { display: grid; grid-template-columns: 27px minmax(0,1fr); gap: 7px 9px; }
.guide-step-number { display: inline-flex; align-items: center; justify-content: center; width: 27px; height: 27px; border-radius: 5px; background: var(--pale); color: var(--green); font-size: 12px; font-weight: 650; }
.guide-step h3 { line-height: 27px; }
.guide-step p { grid-column: 1 / -1; font-size: 13px; color: #63736b; overflow-wrap: anywhere; }
.guide-screenshot { display: block; position: relative; width: 100%; margin: auto 0 0; padding: 12px; border: 0; border-radius: 6px; background: #f5f7f4; color: var(--green); cursor: zoom-in; }
.guide-screenshot img { display: block; width: 100%; max-width: 190px; height: auto; aspect-ratio: 1 / 2; object-fit: contain; margin-inline: auto; }
.guide-zoom { display: grid; place-items: center; position: absolute; bottom: 9px; right: 9px; width: 28px; height: 28px; border: 1px solid var(--line); border-radius: 5px; background: #fff; }
.guide-zoom .icon { width: 16px; height: 16px; }
.guide-device-help { margin: 20px 0; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.guide-device-help p { margin-top: 10px; color: #63736b; }
.guide-connect { display: flex; align-items: flex-start; justify-content: space-between; gap: 38px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 25px 0; margin-top: 25px; }
.guide-connect > div { flex: 1; min-width: 0; }
.guide-connect ol { padding-left: 20px; margin: 15px 0; }
.guide-connect li { font-size: 14px; margin: 13px 0; color: #63736b; }
.guide-connect li strong { color: var(--ink); font-weight: 600; }
.guide-connection-image { width: 140px; margin: 0; flex: none; }
.guide-connection-image img { display: block; width: 100%; height: auto; object-fit: contain; }
.guide-connection-image figcaption { font-size: 11px; color: var(--muted); margin-top: 8px; text-align: center; }
.guide-faq { margin: 26px 0; }
.guide-faq h2 { margin-bottom: 12px; }
.guide-faq details { border-bottom: 1px solid var(--line); }
.guide-faq summary, .guide-device-help summary { cursor: pointer; color: var(--ink); padding: 12px 0; font-size: 14px; }
.guide-faq details p { color: #63736b; font-size: 14px; padding: 0 0 16px; max-width: 860px; }
.guide-faq, .guide-faq details { scroll-margin-top: 100px; }
.guide-faq-answer { max-width: 860px; font-size: 14px; color: #63736b; }
.guide-faq-answer ol { margin: 0 0 14px; padding-left: 22px; }
.guide-faq-answer li + li { margin-top: 12px; }
.guide-faq-answer strong { color: var(--ink); font-weight: 600; }
.faq-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.faq-heading p { color: var(--muted); font-size: 14px; }
.faq-heading > a { flex: none; color: var(--green); font-size: 14px; text-decoration: underline; text-underline-offset: 3px; }
.faq-controls { display: grid; grid-template-columns: minmax(0,1fr) minmax(190px,260px); gap: 12px 16px; padding: 18px 0 12px; }
.faq-controls label { display: flex; flex-direction: column; gap: 6px; color: var(--ink); font-size: 14px; min-width: 0; }
.faq-controls input, .faq-controls select { box-sizing: border-box; width: 100%; min-width: 0; min-height: 44px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); padding: 10px 12px; font: inherit; font-size: 16px; }
.faq-scope { display: flex; flex-wrap: wrap; gap: 8px; grid-column: 1 / -1; }
.faq-scope button, .faq-empty button { min-height: 40px; padding: 8px 13px; border: 1px solid var(--line); border-radius: 6px; background: white; color: var(--ink); font: inherit; font-size: 14px; cursor: pointer; touch-action: manipulation; }
.faq-scope button[aria-pressed="true"] { border-color: var(--green); background: var(--pale); color: var(--green); }
.faq-status { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--muted); border-bottom: 1px solid var(--line); }
.faq-status button { min-height: 44px; padding: 8px 0 8px 12px; color: var(--green); border: 0; background: transparent; font: inherit; cursor: pointer; }
.guide-faq .faq-list summary { min-height: 48px; box-sizing: border-box; font-size: 16px; overflow-wrap: anywhere; }
.guide-faq .guide-faq-answer { color: #526158; font-size: 15px; overflow-wrap: anywhere; padding-bottom: 14px; }
.guide-faq .guide-faq-answer p { color: inherit; font-size: inherit; padding: 0; margin: 0 0 12px; }
.guide-faq .guide-faq-answer a { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.faq-empty { border-bottom: 1px solid var(--line); padding: 22px 0; font-size: 14px; }
.faq-empty p { margin-bottom: 10px; }
.faq-empty a { color: var(--green); margin-left: 16px; }
.guide-faq [hidden] { display: none !important; }
.guide-faq :is(button,input,select,summary,a):focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
@media(max-width:600px) {
  .faq-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .faq-controls { grid-template-columns: minmax(0,1fr); }
}
.guide-contact { display: flex; align-items: center; gap: 18px; padding: 16px 0; }
.guide-contact > div { flex: 1; }
.guide-contact p { font-size: 13px; color: var(--muted); margin-top: 6px; }
.guide-contact > a { flex: none; }
.guide-source { font-size: 11px; color: var(--muted); margin-top: 22px; border-top: 1px solid var(--line); padding-top: 15px; }
.guide-source a { text-decoration: underline; text-underline-offset: 3px; }
.guide-image-dialog { width: min(500px,calc(100% - 28px)); max-height: 90vh; max-height: 90dvh; padding: 16px; border-radius: 8px; }
.guide-image-dialog .dialog-heading { position: sticky; top: -16px; z-index: 1; margin: -16px -16px 12px; padding: 12px 16px; background: #fff; border-bottom: 1px solid var(--line); }
.guide-image-dialog .dialog-heading h2 { font-size: 16px; }
.guide-image-dialog .dialog-heading button { min-width: 40px; min-height: 40px; }
.guide-image-dialog > img { display: block; width: 100%; height: auto; }
.guide-adapter-entry { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.guide-adapter-entry strong { font-weight: 600; }
.guide-adapter-entry p { font-size: 13px; color: #63736b; margin-top: 4px; }
.guide-adapter-entry > a { display: inline-flex; align-items: center; gap: 7px; flex: none; min-height: 40px; }
.adapter-guide .guide-heading { margin-bottom: 20px; }
.adapter-key-point { padding: 15px 18px; border-left: 3px solid var(--green); background: var(--pale); }
.adapter-key-point strong { font-weight: 600; }
.adapter-key-point p { font-size: 13px; color: #52685b; margin-top: 6px; }
.adapter-section { padding: 25px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 100px; }
.adapter-definitions { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 25px; margin: 16px 0 0; }
.adapter-definitions dt { font-size: 14px; font-weight: 600; }
.adapter-definitions dd { margin: 6px 0 0; font-size: 13px; color: #63736b; }
.adapter-intro { font-size: 13px; color: #63736b; margin-top: 8px; }
.adapter-table { border-collapse: collapse; table-layout: fixed; width: 100%; margin-top: 18px; font-size: 13px; }
.adapter-table th, .adapter-table td { padding: 13px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.adapter-table thead th { background: #edf2ee; font-weight: 600; }
.adapter-table th:first-child { width: 23%; }
.adapter-table tbody th { font-weight: 600; }
.adapter-table td { color: #63736b; }
.adapter-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.adapter-checklist { padding-left: 22px; margin: 15px 0; }
.adapter-checklist li { padding-left: 4px; margin: 12px 0; color: #63736b; font-size: 14px; }
.adapter-checklist strong { color: var(--ink); font-weight: 600; }
.adapter-brands { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 18px; margin-top: 19px; }
.adapter-brand { display: flex; flex-direction: column; align-items: flex-start; min-width: 0; padding: 15px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.adapter-brand figure { margin: 0 0 14px; width: 100%; }
.adapter-brand img { display: block; width: 100%; height: auto; aspect-ratio: 8 / 5; object-fit: contain; }
.adapter-brand figcaption { font-size: 11px; color: var(--muted); margin-top: 5px; }
.adapter-brand p { font-size: 13px; color: #63736b; margin: 9px 0 14px; }
.adapter-brand > a { display: inline-flex; align-items: center; gap: 5px; margin-top: auto; min-height: 40px; }
.adapter-guide .adapter-brand-nav { margin: 0 0 18px; gap: 26px; flex-wrap: wrap; }
.adapter-requirement, .adapter-limitation { margin-top: 12px; font-size: 14px; color: #63736b; }
.adapter-requirement strong, .adapter-limitation strong { color: var(--ink); font-weight: 600; }
.adapter-steps { list-style: none; padding: 0; margin: 25px 0 0; }
.adapter-steps li { display: grid; grid-template-columns: 27px minmax(0,1fr); gap: 13px; padding: 0 0 23px; }
.adapter-steps h3 { line-height: 27px; }
.adapter-steps p { font-size: 14px; color: #63736b; margin-top: 5px; max-width: 850px; }
.adapter-official-links { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.adapter-official-links a { display: inline-flex; align-items: center; gap: 5px; color: var(--green); font-size: 13px; min-height: 40px; }
.adapter-guide .guide-source p + p { margin-top: 8px; }
.adapter-guide .guide-source .icon { width: 12px; height: 12px; vertical-align: middle; }
@media(max-width:900px) {
  .adapter-brands { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .installation-guide .guide-steps { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .guide-preflight ul { gap: 18px; }
}
@media(max-width:600px) {
  .installation-guide h1 { font-size: 24px; }
  .installation-guide h2 { font-size: 18px; }
  .guide-heading { flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
  .guide-heading > a { min-height: 40px; padding: 8px 13px; }
  .guide-preflight ul { grid-template-columns: minmax(0,1fr); gap: 13px; margin-top: 14px; }
  .guide-preflight strong { margin-bottom: 3px; }
  .guide-instructions-heading { align-items: flex-start; flex-direction: column; gap: 13px; }
  .installation-guide .guide-device-nav { gap: 24px; margin: 18px 0; }
  .installation-guide .guide-method-nav { width: 100%; }
  .installation-guide .guide-method-nav .guide-choice { flex: 1; min-height: 40px; }
  .installation-guide .guide-steps { grid-template-columns: minmax(0,1fr); gap: 14px; margin-top: 18px; }
  .guide-step { padding: 16px; }
  .guide-step p, .guide-preflight span, .guide-note, .guide-format { font-size: 14px; }
  .guide-screenshot img { max-width: 200px; }
  .guide-connect { flex-wrap: wrap; gap: 17px; padding-block: 20px; }
  .guide-connect > div { flex-basis: 100%; }
  .guide-connection-image { width: 140px; margin-inline: auto; }
  .guide-contact { flex-wrap: wrap; gap: 14px; }
  .guide-contact > div { flex-basis: 100%; }
  .guide-source { font-size: 12px; overflow-wrap: anywhere; }
  .guide-adapter-entry { flex-wrap: wrap; gap: 7px; }
  .guide-adapter-entry p, .adapter-key-point p, .adapter-definitions dd, .adapter-intro { font-size: 14px; }
  .adapter-key-point { padding: 13px 14px; }
  .adapter-definitions { grid-template-columns: minmax(0,1fr); gap: 16px; }
  .adapter-table { font-size: 13px; }
  .adapter-table th, .adapter-table td { padding: 12px 7px; }
  .adapter-table th:first-child { width: 25%; }
  .adapter-brands { grid-template-columns: minmax(0,1fr); gap: 13px; }
  .adapter-brand { display: grid; grid-template-columns: 108px minmax(0,1fr); column-gap: 15px; align-items: start; }
  .adapter-brand figure { grid-row: 1 / 4; margin: 0; }
  .adapter-brand h3 { font-size: 16px; }
  .adapter-brand p { font-size: 14px; margin-block: 7px; }
  .adapter-brand > a { grid-column: 2; font-size: 13px; }
  .adapter-guide .adapter-brand-nav { gap: 20px; }
  .adapter-section { padding-block: 22px; }
  .adapter-steps li { gap: 10px; }
}