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button.seg-on{background:#636366}}.check{border:2px solid var(--label-3);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:14px;font-weight:700;transition:background .15s,border-color .15s;display:flex}.check.on{background:var(--blue);border-color:var(--blue)}.link-btn{color:var(--blue);text-transform:none;font-size:13px}.chat{background:var(--bg);height:100%;padding-bottom:calc(var(--tabbar-h) + var(--sab));flex-direction:column;display:flex;position:fixed;top:0;left:0;right:0}.chat.kb{padding-bottom:0}.chat-list{-webkit-overflow-scrolling:touch;overscroll-behavior-y:contain;padding:calc(44px + var(--sat) + 12px) 12px 12px;flex-direction:column;flex:1;gap:6px;display:flex;overflow-y:auto}.chat-start{text-align:center;margin:auto 0;padding:0 12px}.chat-start .big{font-size:54px}.chat-start h3{margin:8px 0 6px;font-size:22px}.chat-start p{color:var(--label-2);margin:0 0 20px;font-size:15px;line-height:1.4}.bubble-wrap{flex-direction:column;max-width:82%;display:flex}.bubble-wrap.me{align-self:flex-end;align-items:flex-end}.bubble-wrap.ai{flex-direction:row;align-self:flex-start;align-items:flex-start;gap:4px}.bubble{word-break:break-word;-webkit-user-select:text;user-select:text;border-radius:20px;padding:9px 14px;font-size:17px;line-height:1.3}.bubble.me{background:var(--blue);color:#fff;border-bottom-right-radius:6px}.bubble.ai{background:var(--bg-elev);border-bottom-left-radius:6px}.tap-word{cursor:pointer;border-radius:4px}.tap-word:active{background:color-mix(in srgb, var(--blue) 25%, transparent)}.bubble-speak{width:30px;height:30px;color:var(--blue);border-radius:50%;flex-shrink:0;justify-content:center;align-self:flex-end;align-items:center;display:flex}.correction{background:color-mix(in srgb, var(--green) 14%, var(--bg-elev));border-radius:14px;max-width:100%;margin-top:4px;padding:7px 12px;font-size:15px}.correction-fixed{color:var(--green);font-weight:600}.correction-note{color:var(--label-2);margin-top:2px;font-size:13px}.bubble.typing{align-self:flex-start;gap:4px;padding:14px 16px;display:flex}.bubble.typing span{background:var(--label-3);border-radius:50%;width:8px;height:8px;animation:1.2s infinite blink}.bubble.typing span:nth-child(2){animation-delay:.2s}.bubble.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}.chat-retry{color:var(--red);align-self:center;padding:8px;font-size:15px}.composer{background:var(--bar);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);box-shadow:0 -.5px 0 var(--separator);align-items:center;gap:8px;padding:8px 12px;display:flex}.composer input{border:1px solid var(--separator);background:var(--bg-elev);border-radius:19px;outline:0;flex:1;min-width:0;height:38px;padding:0 14px;font-size:17px}.send{background:var(--blue);color:#fff;border-radius:50%;flex-shrink:0;width:34px;height:34px;font-size:20px;font-weight:700}.send:disabled{background:var(--fill-2)}.word-card-backdrop{height:var(--app-h);z-index:60;background:#00000040;position:fixed;top:0;left:0;right:0}.word-card{left:12px;right:12px;bottom:calc(100% - var(--app-h) + var(--tabbar-h) + var(--sab) + 12px);z-index:61;background:var(--bg-elev);border-radius:22px;padding:18px;position:fixed;box-shadow:0 20px 50px #00000040}.word-card-term{justify-content:space-between;align-items:center;font-size:28px;font-weight:700;display:flex}.word-card .tr{color:var(--label-2);margin-top:2px}.word-card-tr{margin-top:8px;font-size:19px}.shimmer-text{color:var(--label-3)}.bubble-col{flex-direction:column;align-items:flex-start;min-width:0;display:flex}.bubble-tr{background:color-mix(in srgb, var(--indigo) 14%, var(--bg-elev));color:var(--label);border-radius:14px;margin-top:4px;padding:7px 12px;font-size:15px;overflow:hidden}.bubble-actions{gap:14px;padding:4px 6px 2px;display:flex}.bubble-actions button{color:var(--blue);align-items:center;gap:4px;font-size:13px;font-weight:500;display:flex}