body{margin:0;overflow:hidden}#navbar{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:var(--nav-height, 44px);background:#ffffffd9;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border-bottom:1px solid rgba(0,0,0,.08);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}#nav-brand{font-size:15px;font-weight:600;color:#2c3e50;letter-spacing:-.01em;user-select:none}#nav-links{display:flex;align-items:center;gap:16px}#nav-about-btn{font-size:13px;font-weight:500;color:#555;background:transparent;border:none;cursor:pointer;padding:4px 8px;border-radius:4px;transition:background .15s,color .15s}#nav-about-btn:hover{background:#0000000f;color:#222}#about-overlay{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;background:#0006}#about-overlay.open{display:flex;animation:overlayFadeIn .2s ease forwards}#about-overlay.open #about-panel{animation:panelSlideIn .2s ease forwards}@keyframes overlayFadeIn{0%{opacity:0}to{opacity:1}}@keyframes panelSlideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}#about-panel{position:relative;max-width:560px;max-height:80vh;overflow-y:auto;margin:20px;padding:28px 32px 32px;background:#fff;border-radius:12px;box-shadow:0 8px 32px #0000002e;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:#333;transform:translateY(8px)}#about-close-btn{position:absolute;top:12px;right:14px;font-size:22px;line-height:1;background:none;border:none;color:#888;cursor:pointer;padding:4px 8px;border-radius:4px;transition:color .15s,background .15s}#about-close-btn:hover{color:#222;background:#0000000f}#about-panel h2{margin:0 0 12px;font-size:20px;font-weight:600;color:#2c3e50}#about-panel h3{margin:18px 0 6px;font-size:15px;font-weight:600;color:#2c3e50}#about-panel p{margin:0 0 4px;font-size:14px;line-height:1.55;color:#555}#about-panel ul{margin:0 0 4px 18px;padding:0;font-size:14px;line-height:1.55;color:#555}#about-panel li{margin-bottom:2px}.tp-rotv,.tp-lblv_l,.tp-txtv_i,.tp-lstv_s,.tp-btnv_b{font-size:14px!important}#model-selector{position:absolute;top:calc(var(--nav-height, 44px) + 10px);left:10px;z-index:10}#params-gui{position:absolute;top:calc(var(--nav-height, 44px) + 10px);right:10px;z-index:10}@media(max-width:480px){:root{--nav-height: 40px}#navbar{padding:0 14px}#nav-brand{font-size:14px}#about-panel{margin:12px;padding:24px 20px 28px}#about-panel h2{font-size:18px}#about-panel p,#about-panel li{font-size:13px}}