html,body{background:#142234;width:100%;height:100%;margin:0;font-family:Arial,Microsoft YaHei,sans-serif;overflow:hidden}#app{width:100%;height:100%}canvas{margin:0 auto;display:block}.feedback-panel{z-index:10;color:#eff8ff;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0c1826d1;border:1px solid #c3e6ff38;width:min(240px,50vw - 280px);min-width:188px;padding:16px;position:fixed;top:24px;right:max(24px,50vw - 540px);box-shadow:0 18px 40px #00000047}.feedback-kicker,.feedback-panel h1,.feedback-copy{margin:0}.feedback-kicker{color:#9ce3ff;letter-spacing:.08em;text-transform:uppercase;font-size:11px;font-weight:700}.feedback-panel h1{margin-top:6px;font-size:22px;line-height:1.15}.feedback-copy{color:#cde2ee;margin-top:8px;font-size:13px;line-height:1.5}.feedback-actions{grid-template-columns:1fr;gap:8px;margin-top:14px;display:grid}.feedback-button{color:#eff8ff;background:#ffffff14;border:1px solid #c3e6ff59;justify-content:center;align-items:center;min-height:40px;font-size:14px;font-weight:700;text-decoration:none;display:flex}.feedback-button.primary{color:#102417;background:#74f49a;border-color:#74f49a}.feedback-button:focus-visible{outline-offset:2px;outline:3px solid #fff}@media (width<=900px){.feedback-panel{top:auto;right:12px;bottom:max(12px, env(safe-area-inset-bottom));width:auto;min-width:0;padding:10px;left:12px}.feedback-kicker,.feedback-copy{display:none}.feedback-panel h1{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.feedback-actions{grid-template-columns:1fr 1fr;gap:10px;margin-top:0}.feedback-button{min-height:44px;font-size:15px}}