:root{--bg:#f8fafc;--card:#fff;--text:#0f172a;--muted:#475569;--primary:#1d4ed8;--border:#cbd5e1;--error:#b91c1c;--good:#166534}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,Noto Sans JP,sans-serif}a{color:var(--primary)}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{border:1px solid var(--primary);background:var(--primary);color:#fff;cursor:pointer;border-radius:6px;min-height:44px;padding:8px 16px}button.secondary{background:var(--card);color:var(--primary)}button.danger{background:var(--error);border-color:var(--error)}button:disabled{opacity:.6;cursor:default}button:hover:not(:disabled){filter:brightness(.93)}:focus-visible{outline:3px solid var(--primary);outline-offset:3px}input,textarea,select{border:1px solid var(--border);background:var(--card);width:100%;min-height:44px;color:var(--text);border-radius:5px;padding:8px 12px}textarea{resize:vertical;min-height:110px}label{margin-bottom:16px;font-weight:600;display:block}label input,label textarea,label select{margin-top:5px;display:block}header{background:var(--card);border-bottom:1px solid var(--border);padding:16px 24px}header .bar{justify-content:space-between;align-items:center;gap:20px;max-width:1120px;margin:auto;display:flex}nav{flex-wrap:wrap;gap:16px;display:flex}nav a{align-items:center;min-height:44px;display:flex}main{max-width:1120px;margin:24px auto;padding:0 24px 48px}h1{margin:0 0 8px;font-size:28px;line-height:1.4}h2{margin:0 0 16px;font-size:20px}h3{font-size:17px}p{margin:8px 0 16px}.muted{color:var(--muted)}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.panel{border:1px solid var(--border);background:var(--card);border-radius:8px;margin-bottom:20px;padding:24px}.stack{gap:16px;display:grid}.actions{flex-wrap:wrap;gap:12px;display:flex}.error{color:var(--error);background:#fef2f2;border:1px solid #fecaca;border-radius:6px;padding:12px}.notice{background:#eff6ff;border:1px solid #bfdbfe;margin-bottom:20px;padding:12px 16px}.status{color:var(--text);background:#e2e8f0;border-radius:4px;padding:2px 8px;font-size:14px;display:inline-block}.scroll{overflow-x:auto}table{border-collapse:collapse;text-align:left;width:100%}td,th{border-bottom:1px solid var(--border);white-space:nowrap;padding:10px 8px}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f1f5f9;padding:12px;font-size:14px}.message{border-bottom:1px solid var(--border);padding:12px 0}.login{max-width:460px;margin:48px auto}.tabs{flex-wrap:wrap;gap:8px;margin:24px 0;display:flex}.tabs button[aria-selected=true]{background:var(--primary);color:#fff}.tabs button{color:var(--primary);background:#fff}.metric{font-size:30px;font-weight:600}.timeline{border-left:3px solid var(--border);padding-left:20px}.timeline li{padding:8px 0;list-style:none}video{border-radius:4px;max-width:100%}.visually-hidden{clip:rect(0, 0, 0, 0);width:1px;height:1px;position:absolute;overflow:hidden}@media (max-width:760px){main{padding:0 16px 32px}.grid{grid-template-columns:1fr}header{padding:12px 16px}.panel{padding:16px}header .bar{flex-direction:column;align-items:flex-start}h1{font-size:24px}}