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var(--piq-border);border-bottom:0;padding:1rem;overflow-y:auto;-webkit-overflow-scrolling:touch}.sidebar.sidebar-open{transform:translate(0)}.sidebar-bottom{display:block;margin-top:auto;padding-top:1rem}.history-section{max-height:none;overflow-y:visible}.chat-main,.diff-main{max-height:none;min-height:0;height:auto}.chat-body,.diff-body{min-height:0}.demo-back-btn span{display:none}.demo-back-btn{padding:.5rem .6rem}body.piq-demo.tour-sheet-active{padding-bottom:calc(40vh + 1rem)}}@media(max-width:480px){.mode-btn{font-size:.85rem;padding:.55rem .6rem}.demo-banner-inner{gap:.4rem}.demo-label{font-size:.68rem}}.mobile-tour-ring{position:absolute;z-index:150;pointer-events:none;border-radius:14px;background:transparent;box-shadow:0 0 0 2px #25d0ffd9,0 0 0 6px #25d0ff2e,0 0 20px 4px #25d0ff59;animation:mobileTourRingPulse 1.6s ease-in-out infinite}.mobile-tour-ring[hidden]{display:none}@keyframes mobileTourRingPulse{0%,to{box-shadow:0 0 0 2px #25d0ffd9,0 0 0 6px #25d0ff2e,0 0 20px 4px #25d0ff59}50%{box-shadow:0 0 0 2px #25d0ff,0 0 0 10px #25d0ff14,0 0 28px 8px #25d0ff80}}@media(prefers-reduced-motion:reduce){.mobile-tour-ring{animation:none}}.tour-sheet{position:fixed;left:0;right:0;bottom:0;z-index:200;max-height:40vh;display:flex;flex-direction:column;padding:.4rem 1.1rem max(1.1rem,env(safe-area-inset-bottom));background:linear-gradient(180deg,#0f1830fb,#080e20fb);border-top:1px solid rgba(37,208,255,.32);border-radius:20px 20px 0 0;box-shadow:0 -16px 40px #0000008c,0 -1px #25d0ff2e;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);color:var(--piq-text);transform:translateY(0);touch-action:pan-y}.tour-sheet[hidden]{display:none}.tour-sheet.is-entering,.tour-sheet.is-leaving{transform:translateY(100%)}.tour-sheet-handle{width:38px;height:4px;margin:.45rem auto .6rem;border-radius:2px;background:#ffffff38;flex-shrink:0}.tour-sheet-meta{display:flex;align-items:center;gap:.55rem;font-size:.72rem;flex-shrink:0;margin-bottom:.55rem}.tour-sheet-kind{background:#25d0ff24;color:var(--piq-accent);padding:.22rem .65rem;border-radius:999px;font-weight:700;text-transform:uppercase;letter-spacing:1px;border:1px solid rgba(37,208,255,.32);font-size:.65rem}.tour-sheet-progress{color:var(--piq-text-muted);font-weight:700;letter-spacing:1px;text-transform:uppercase;font-size:.68rem}.tour-sheet-close{margin-left:auto;min-width:44px;min-height:44px;background:transparent;border:0;color:var(--piq-text-muted);font-size:1.6rem;line-height:1;padding:0;border-radius:10px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.tour-sheet-close:hover{background:#ffffff0d;color:var(--piq-text)}.tour-sheet-title{font-family:var(--piq-font-head);font-size:1.05rem;font-weight:700;letter-spacing:-.005em;color:var(--piq-text);margin:0 0 .4rem;flex-shrink:0}.tour-sheet-body{color:var(--piq-text-soft);font-size:.9rem;line-height:1.55;margin:0 0 .85rem;flex:1 1 auto;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.tour-sheet-body strong{color:var(--piq-text);font-weight:700}.tour-sheet-actions{display:flex;gap:.55rem;flex-shrink:0}.tour-sheet-btn{flex:1;min-height:44px;padding:.7rem 1rem;border:0;border-radius:12px;font-family:var(--piq-font-head);font-weight:700;font-size:.9rem;cursor:pointer;transition:opacity .15s,transform .15s}.tour-sheet-btn:active:not(:disabled){transform:scale(.97)}.tour-sheet-btn-ghost{background:#ffffff0f;color:var(--piq-text-soft)}.tour-sheet-btn-ghost:disabled{opacity:.3;cursor:not-allowed}.tour-sheet-btn-primary{background:linear-gradient(135deg,var(--piq-accent),var(--piq-accent-2));color:#06122a;flex:1.6}.tour-sheet-btn-primary:disabled{opacity:.55;cursor:not-allowed}body.piq-demo.tour-sheet-active{padding-bottom:42vh}@media(max-width:768px),(pointer:coarse){body.piq-demo.tour-active{overflow:auto}}