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solid var(--tlt-glass-border);padding:16px 22px;box-shadow:0 -6px 18px #0000000f;z-index:45}.tlt-fixed-instruction-wrap{margin:16px 22px 4px;padding:12px 14px;border-radius:var(--tlt-radius);background:var(--tlt-glass-bg);border:1px solid var(--tlt-glass-border);box-shadow:var(--tlt-shadow)}.tlt-mode-wrap{margin:12px 22px;display:flex;gap:12px}.tlt-mode-btn{padding:6px 14px;border-radius:var(--tlt-radius);border:1px solid var(--tlt-glass-border);background:var(--tlt-glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.tlt-mode-btn.active{background:linear-gradient(135deg,var(--tlt-blue-light),var(--tlt-blue));color:#fff;border:none}.tlt-header-title{font-size:18px;padding:6px 12px;background:#ffffffd9;border-radius:var(--tlt-radius);border:1px solid var(--tlt-glass-border);width:100%}.tlt-header-thread{font-size:14px;padding:5px 10px;background:#ffffffb3;border-radius:var(--tlt-radius);border:1px solid var(--tlt-glass-border);width:100%;color:#666}.tlt-input-row{display:flex;align-items:center;gap:12px;margin-top:10px}.tlt-input-box{flex:1;min-height:46px;max-height:130px;resize:none;padding:12px 14px;border-radius:var(--tlt-radius);background:#ffffffeb;border:1px solid var(--tlt-glass-border);box-shadow:var(--tlt-shadow);font-size:15px;line-height:1.6}.tlt-followup-input{width:100%;padding:10px 14px;border-radius:var(--tlt-radius);background:#ffffffbf;border:1px solid var(--tlt-glass-border);font-size:14px;color:#444}.tlt-attach-btn{padding:8px 10px;font-size:16px;background:#ffffffe6;border:1px solid var(--tlt-glass-border);border-radius:var(--tlt-radius)}.tlt-send-btn{padding:10px 14px;border-radius:var(--tlt-radius);background:linear-gradient(135deg,var(--tlt-blue-light),var(--tlt-blue));color:#fff;border:none;font-size:16px;box-shadow:var(--tlt-shadow)}.tlt-send-btn:hover{opacity:.9}.tlt-fixed-instruction-input{width:100%;padding:10px 14px;font-size:14px;background:#ffffffbf;border:1px solid var(--tlt-glass-border);border-radius:var(--tlt-radius);box-shadow:var(--tlt-shadow);resize:vertical;min-height:52px;max-height:150px;line-height:1.5;color:#333}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background:linear-gradient(135deg,#eef6ff,#f5f9ff 35%,#fff);color:#222}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-thumb{background:#cdd9eb;border-radius:8px}::-webkit-scrollbar-track{background:transparent}::selection{background:#5096ff4d}button{cursor:pointer;font-family:inherit}input,textarea{font-family:inherit;border:none;outline:none}:root{--tlt-blue: #4aa8ff;--tlt-blue-light: #70c1ff;--tlt-blue-dark: #2a7fe0;--tlt-glass-bg: rgba(255, 255, 255, .65);--tlt-glass-border: rgba(200, 220, 255, .6);--tlt-shadow: 0 8px 20px rgba(0, 0, 0, .08);--tlt-radius: 14px;--tlt-ai: #6d8eff;--tlt-user: #7dd3fc}.tlt-chat-timeline{display:flex;flex-direction:column;gap:14px;width:100%;max-width:1050px;margin:0 auto}.tlt-msg{display:flex;flex-direction:column;max-width:86%}.tlt-msg.user{align-self:flex-end}.tlt-msg.ai{align-self:flex-start}.tlt-bubble{padding:12px 16px;border-radius:var(--tlt-radius);box-shadow:var(--tlt-shadow);font-size:15px;line-height:1.6;white-space:pre-wrap;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--tlt-glass-border)}.tlt-msg.ai .tlt-bubble{background:#ffffffbf;border-left:4px solid var(--tlt-ai)}.tlt-msg.user .tlt-bubble{background:#e6f4ff;border-right:4px solid var(--tlt-user)}.tlt-msg-header{display:flex;justify-content:space-between;font-size:11px;color:#777;margin-bottom:4px}.tlt-msg-actions{display:flex;gap:6px;margin-top:4px}.tlt-msg-actions button{font-size:12px;border:none;background:transparent;color:#666;padding:2px 6px}.tlt-msg-actions button:hover{color:var(--tlt-blue)}.tlt-json-block{background:#ffffffd9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:14px 16px;border-radius:var(--tlt-radius);border:1px solid var(--tlt-glass-border);font-size:14px;white-space:pre-wrap;overflow-x:auto;box-shadow:var(--tlt-shadow);font-family:Menlo,Consolas,monospace;max-height:380px}.tlt-json-toggle{font-size:12px;color:var(--tlt-blue);cursor:pointer;margin-bottom:6px}.tlt-toolbar-fixed{position:fixed;bottom:110px;left:22px;z-index:40;display:flex;gap:8px;align-items:center;overflow-x:auto;white-space:nowrap;padding:8px 14px;border-radius:var(--tlt-radius);background:var(--tlt-glass-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--tlt-glass-border);box-shadow:var(--tlt-shadow);transition:.25s ease}.tlt-toolbar-fixed:hover{border-color:var(--tlt-blue-light);box-shadow:0 8px 26px #5096ff40}.tlt-toolbar-btn{padding:6px 14px;font-size:13px;border-radius:var(--tlt-radius);border:1px solid var(--tlt-glass-border);background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:.25s ease}.tlt-toolbar-btn:hover{background:linear-gradient(135deg,var(--tlt-blue-light),var(--tlt-blue));color:#fff;border-color:transparent}.tlt-toolbar-btn.active{background:linear-gradient(135deg,var(--tlt-blue),var(--tlt-blue-dark));color:#fff;border:none}.tlt-toolbar-fixed::-webkit-scrollbar{height:6px}.tlt-toolbar-fixed::-webkit-scrollbar-thumb{background:#c2d7ff;border-radius:6px}