.source-hardware-page .hw-tab-bar {
      display: flex; gap: 0.25rem; flex-wrap: wrap; justify-content: center;
      margin: 1.75rem auto 0; max-width: 640px;
    }
    .source-hardware-page .hw-tab-bar a {
      font-size: 0.82rem; font-weight: 600; padding: 0.38rem 0.9rem;
      border-radius: 999px; border: 1px solid var(--color-border);
      color: var(--color-text-muted);
      transition: border-color var(--transition), color var(--transition), background var(--transition);
    }
    .source-hardware-page .hw-tab-bar a:hover, .source-hardware-page .hw-tab-bar a.is-active {
      border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-dim);
    }
    .source-hardware-page .breadcrumb {
      display: flex; align-items: center; gap: 0.5rem; font-size: 0.83rem;
      color: var(--color-text-dim); margin-bottom: 1rem; flex-wrap: wrap;
    }
    .source-hardware-page .breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
    .source-hardware-page .breadcrumb a:hover { color: var(--color-accent); }
    .source-hardware-page .breadcrumb span { color: var(--color-text-dim); }
    .source-hardware-page .setup-step {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 2rem;
      margin-bottom: 1.5rem;
    }
    .source-hardware-page .setup-step-header {
      display: flex; align-items: center; gap: 1rem; margin-bottom: 1.25rem;
    }
    .source-hardware-page .setup-step-num {
      display: flex; align-items: center; justify-content: center;
      width: 2.5rem; height: 2.5rem; border-radius: 50%;
      background: var(--color-accent-dim); border: 1px solid var(--color-border-glow);
      font-family: var(--font-display); font-size: 1rem; font-weight: 700;
      color: var(--color-accent); flex-shrink: 0;
    }
    .source-hardware-page .setup-step-header h2 {
      font-family: var(--font-display); font-size: 1.15rem; font-weight: 700;
      color: var(--color-text); margin: 0;
    }
    .source-hardware-page .setup-step p { color: var(--color-text-muted); line-height: 1.7; margin-bottom: 0.85rem; }
    .source-hardware-page .setup-step p:last-child { margin-bottom: 0; }
    .source-hardware-page .setup-step ul, .source-hardware-page .setup-step ol { padding-left: 1.5rem; color: var(--color-text-muted); line-height: 1.75; margin-bottom: 0.85rem; }
    .source-hardware-page .setup-step li { margin-bottom: 0.3rem; }
    .source-hardware-page pre.setup-code {
      background: #0f1117; color: #e2e8f0; border-radius: 8px;
      padding: 1.25rem 1.5rem; font-size: 0.82rem;
      font-family: 'JetBrains Mono', 'Fira Code', monospace;
      line-height: 1.65; overflow-x: auto; margin: 1rem 0 1.25rem;
      border: 1px solid #1e2231;
    }
    .source-hardware-page pre.setup-code .c { color: #6b7a99; }
    .source-hardware-page pre.setup-code .kw { color: #7dd3fc; }
    .source-hardware-page pre.setup-code .st { color: #86efac; }
    .source-hardware-page pre.setup-code .num { color: #fcd34d; }
    .source-hardware-page pre.setup-code .fn { color: #c4b5fd; }
    .source-hardware-page .setup-callout {
      border-left: 3px solid var(--color-accent);
      background: var(--color-accent-dim);
      border-radius: 0 6px 6px 0;
      padding: 0.9rem 1.25rem;
      margin: 1rem 0;
      font-size: 0.9rem;
      line-height: 1.6;
      color: var(--color-text);
    }
    .source-hardware-page .setup-callout strong { display: block; margin-bottom: 0.25rem; color: var(--color-accent); }
    .source-hardware-page .setup-callout.warn {
      border-color: #f59e0b;
      background: #fffbeb;
    }
    .source-hardware-page .setup-callout.warn strong { color: #d97706; }
    .source-hardware-page .setup-callout.danger {
      border-color: #dc2626;
      background: #fef2f2;
    }
    .source-hardware-page .setup-callout.danger strong { color: #dc2626; }
    .source-hardware-page .interface-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.88rem;
      margin: 1rem 0 1.25rem;
    }
    .source-hardware-page .interface-table th {
      text-align: left;
      font-weight: 700;
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--color-text-muted);
      border-bottom: 2px solid var(--color-border);
      padding: 0.5rem 0.75rem;
    }
    .source-hardware-page .interface-table td {
      padding: 0.55rem 0.75rem;
      border-bottom: 1px solid var(--color-border);
      vertical-align: top;
    }
    .source-hardware-page .interface-table tr:last-child td { border-bottom: none; }
    .source-hardware-page .interface-table td:first-child { font-weight: 600; font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; white-space: nowrap; }
    .source-hardware-page code.ic {
      background: var(--color-bg-elevated);
      border: 1px solid var(--color-border);
      border-radius: 4px;
      padding: 0.1em 0.45em;
      font-size: 0.85em;
      font-family: 'JetBrains Mono', 'Fira Code', monospace;
      color: var(--color-text);
    }