.connection-guide{margin:4px 0 24px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}.media-switch{display:flex;align-items:center;gap:6px;padding:10px 12px;border-bottom:1px solid var(--line);background:#fff}.media-switch button{border:0;border-radius:6px;background:transparent;color:var(--muted);font-size:12px;font-weight:750;min-height:38px;padding:7px 13px}.media-switch button[aria-selected="true"]{background:var(--ink);color:#fff}.media-switch span{font-size:10px;color:var(--muted);margin-left:auto;margin-right:5px}.animation-viewport{position:relative;padding-bottom:72px;overflow:hidden;background:#f8fbfc}.animation-canvas{position:relative;aspect-ratio:16/9}.animation-canvas::after{content:"";position:absolute;left:0;right:0;bottom:0;height:5px;background:#f8fbfc;pointer-events:none}.animation-viewport iframe{position:absolute;top:0;left:0;width:1280px;height:720px;max-width:none;border:0;transform-origin:top left;pointer-events:none}.visual-instruction{padding:19px 24px 12px;border-top:1px solid #e7eeee}.visual-instruction .visual-count{font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.09em;margin-bottom:6px}.visual-instruction h3{font-size:18px;line-height:1.3;letter-spacing:-.025em}.visual-instruction p{margin-top:7px;font-size:13px;color:var(--muted);line-height:1.55;max-width:65ch}.visual-nav{display:flex;justify-content:flex-end;align-items:center;gap:14px;padding:12px 24px 21px}.step-dots{position:absolute;z-index:2;left:50%;bottom:10px;transform:translateX(-50%);display:flex;align-items:center;gap:4px;padding:6px;border:1px solid #d4e3df;border-radius:999px;background:rgba(255,255,255,.94);box-shadow:0 4px 18px #102a3610;backdrop-filter:blur(10px)}.step-dots button{display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;padding:0;border-radius:50%;background:transparent;border:1px solid transparent;font-size:13px;font-weight:750;color:var(--muted);transition:background .16s ease,border-color .16s ease,color .16s ease}.step-dots button:hover{background:#edf6f3;color:var(--ink)}.step-dots button[aria-current="step"]{background:var(--mint);border-color:#18a378;color:var(--ink)}.step-dots button:focus-visible{outline:3px solid #08675b;outline-offset:1px}.visual-actions{display:flex;gap:7px}.visual-actions button{min-height:38px;border-radius:6px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:12px;font-weight:750;padding:8px 12px}.visual-actions button.next{border-color:var(--ink);background:var(--ink);color:white}.visual-actions button:disabled{opacity:.4;cursor:default}.real-video{background:#f8fbfc}.real-video video{width:100%;height:auto;display:block;background:#e8eeee}.real-description{font-size:12px;color:var(--muted);padding:12px 20px}.visual-fallback{font-size:12px;color:var(--muted);padding:12px 24px;background:#fff7e9}.motion-choice{display:flex;justify-content:flex-end;padding:0 24px 16px}.motion-choice button{font-size:11px;padding:2px 0;color:var(--muted);border:0;background:transparent;text-decoration:underline;text-underline-offset:3px;min-height:30px}
@media(max-width:650px){.media-switch{padding:8px;gap:4px}.media-switch button{font-size:11px;padding:7px 10px}.media-switch span{display:none}.visual-instruction{padding:17px 17px 8px}.visual-instruction h3{font-size:17px}.visual-nav{padding:10px 17px 15px;gap:10px;flex-wrap:wrap}.step-dots{gap:3px;padding:5px;bottom:11px}.visual-actions{width:100%;justify-content:center}.visual-actions button{min-height:44px;padding:8px 9px;font-size:11px;white-space:nowrap}.motion-choice{padding:0 17px 12px;justify-content:center}}
@media print{.connection-guide{display:none!important}}
.real-actions{padding:14px 20px 0;align-items:center;flex-wrap:wrap}.real-actions button{min-height:44px}.real-actions a{font-size:12px;min-height:44px;display:inline-flex;align-items:center;padding:8px 4px}.real-actions+#real-video-status{padding-bottom:0}
@media(max-width:650px){.real-actions{justify-content:flex-start;gap:8px}.real-actions button{flex:1 1 125px}.real-actions a{flex-basis:100%;justify-content:center}}

@media(prefers-reduced-motion:reduce){.step-dots button{transition:none}}