.switch-hero .section-head{text-align:center;margin-inline:auto}.switch-trick{margin:8px auto 0;max-width:22ch;text-align:center;font-size:clamp(28px,6vw,52px);line-height:1.1;font-weight:700;letter-spacing:-.02em;color:var(--text)}.switch-trick-code{font-family:var(--mono, ui-monospace, SFMono-Regular, Menlo, monospace);color:var(--accent);white-space:nowrap}.switch-sub{margin:16px auto 0;max-width:56ch;text-align:center;color:var(--text-dim);font-size:17px}.switch-actions{justify-content:center;margin-top:24px}.switch-demo{margin:32px auto 0;max-width:640px}.switch-demo-stage{display:flex;flex-direction:column;align-items:center;gap:16px}.switch-bar{display:flex;align-items:center;gap:8px;width:100%;max-width:560px;padding:10px 14px;background:var(--bg-panel);border:1px solid var(--line-strong, var(--line));border-radius:999px;font-family:var(--mono, ui-monospace, SFMono-Regular, Menlo, monospace);font-size:clamp(11px,3.2vw,15px);color:var(--text-dim);overflow:hidden;white-space:nowrap}.switch-bar-lock{flex:none;width:10px;height:10px;border:2px solid var(--text-faint);border-radius:2px}.switch-bar-text{display:flex;min-width:0;overflow:hidden}.switch-typed{display:inline-block;overflow:hidden;color:var(--accent);font-weight:700;max-width:0;animation:switch-type 6s steps(10,end) infinite}@keyframes switch-type{0%,18%{max-width:0}40%,to{max-width:10ch}}.switch-after{width:100%;max-width:340px;padding:12px;background:var(--bg-panel);border:1px solid var(--line);border-radius:14px;opacity:.25;animation:switch-after 6s ease-out infinite}@keyframes switch-after{0%,45%{opacity:.25;transform:scale(.98)}55%,to{opacity:1;transform:scale(1)}}.switch-circuit{display:block;width:100%;height:auto}.switch-board{fill:#1d6b4f}.switch-chip{fill:#222}.switch-resistor{fill:#c9a26b}.switch-wire{fill:none;stroke-width:3;stroke-linecap:round}.switch-wire-a{stroke:#e0563f}.switch-wire-b{stroke:#3a7bd5}.switch-led{fill:#ff4b3e;animation:switch-blink 6s steps(1,end) infinite}@keyframes switch-blink{0%,55%{fill:#5a2622}60%{fill:#ff4b3e}70%{fill:#5a2622}80%{fill:#ff4b3e}90%{fill:#5a2622}95%,to{fill:#ff4b3e}}.switch-demo-caption{margin:0;text-align:center;font-size:13px;color:var(--text-dim)}@media(prefers-reduced-motion:reduce){.switch-typed{animation:none;max-width:10ch}.switch-after{animation:none;opacity:1}.switch-led{animation:none}}.switch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr));gap:16px}.switch-card{display:flex;flex-direction:column;gap:6px;padding:18px;background:var(--bg-panel);border:1px solid var(--line);border-radius:14px;scroll-margin-top:80px}.switch-card-title{margin:0;font-size:19px}.switch-how{margin:0;color:var(--text);font-weight:600}.switch-what{margin:0;color:var(--text-dim)}.switch-more{margin-top:auto;padding-top:4px}.switch-out-text{max-width:640px;margin:0 auto;text-align:center}