.source-hardware-page .hw-tab-bar {
      display: flex;
      gap: 0.25rem;
      flex-wrap: wrap;
      justify-content: center;
      margin: 1.75rem auto 0;
      max-width: 860px;
    }
    .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);
      text-decoration: none;
      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 .tutorial-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 1rem;
      margin-top: 1.5rem;
    }
    .source-hardware-page .tutorial-card {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 1.5rem;
      text-decoration: none;
      color: inherit;
      display: flex;
      flex-direction: column;
      gap: 0.6rem;
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }
    .source-hardware-page .tutorial-card:hover {
      border-color: var(--color-border-glow);
      box-shadow: var(--shadow-card-hover);
      transform: translateY(var(--ui-motion-lift-y-hover));
    }
    .source-hardware-page .tutorial-card-kicker {
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--color-accent);
    }
    .source-hardware-page .tutorial-card h3 {
      font-family: var(--font-display);
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-text);
      margin: 0;
    }
    .source-hardware-page .tutorial-card p {
      font-size: 0.86rem;
      color: var(--color-text-muted);
      margin: 0;
      flex: 1;
    }
    .source-hardware-page .tutorial-card-arrow {
      font-size: 0.85rem;
      color: var(--color-accent);
      font-weight: 600;
      margin-top: auto;
    }
    .source-hardware-page .best-first-panel {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      margin-top: 1.5rem;
    }
    .source-hardware-page .best-first-header {
      padding: 1rem 1.5rem;
      background: var(--color-accent-dim);
      border-bottom: 1px solid var(--color-border);
    }
    .source-hardware-page .best-first-header span {
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--color-accent);
      display: block;
      margin-bottom: 0.3rem;
    }
    .source-hardware-page .best-first-header h3 {
      font-family: var(--font-display);
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-text);
      margin: 0;
    }
    .source-hardware-page .best-first-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .source-hardware-page .best-first-item {
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 1rem;
      padding: 1rem 1.5rem;
      border-bottom: 1px solid var(--color-border);
      align-items: start;
    }
    .source-hardware-page .best-first-item:last-child { border-bottom: none; }
    .source-hardware-page .best-first-num {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 1.75rem;
      height: 1.75rem;
      border-radius: 50%;
      background: var(--color-bg-elevated);
      border: 1px solid var(--color-border);
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--color-accent);
      flex-shrink: 0;
    }
    .source-hardware-page .best-first-content strong { display: block; font-size: 0.92rem; color: var(--color-text); margin-bottom: 0.3rem; }
    .source-hardware-page .best-first-content span { font-size: 0.85rem; color: var(--color-text-muted); }
    .source-hardware-page .best-first-content a { color: var(--color-accent); text-decoration: none; }
    .source-hardware-page .best-first-content a:hover { text-decoration: underline; }
    .source-hardware-page .topic-section {
      margin-top: 3rem;
      padding-top: 2rem;
      border-top: 1px solid var(--color-border);
    }
    .source-hardware-page .topic-section h2 {
      font-family: var(--font-display);
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 0.5rem;
    }
    .source-hardware-page .topic-section p {
      color: var(--color-text-muted);
      font-size: 0.92rem;
      margin-bottom: 1rem;
    }
    .source-hardware-page .svrc-path-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 0.4rem;
    }
    .source-hardware-page .svrc-path-list li a {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      padding: 0.65rem 1rem;
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius);
      font-size: 0.88rem;
      color: var(--color-text-muted);
      text-decoration: none;
      transition: border-color var(--transition), color var(--transition), background var(--transition);
    }
    .source-hardware-page .svrc-path-list li a:hover {
      border-color: var(--color-accent);
      color: var(--color-accent);
      background: var(--color-accent-dim);
    }
    .source-hardware-page .page-nav-strip {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
      flex-wrap: wrap;
      padding: 2rem 0;
      border-top: 1px solid var(--color-border);
      margin-top: 3rem;
    }
    .source-hardware-page .page-nav-strip a {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--color-accent);
      text-decoration: none;
    }
    .source-hardware-page .page-nav-strip a:hover { text-decoration: underline; }
    .source-hardware-page .page-nav-prev { display: flex; flex-direction: column; }
    .source-hardware-page .page-nav-next { display: flex; flex-direction: column; align-items: flex-end; }
    .source-hardware-page .page-nav-label {
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--color-text-dim);
      margin-bottom: 0.2rem;
    }
    .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); }