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768px){html,body,#root{height:100%;overflow:hidden}.app{flex-direction:column;height:100dvh;overflow:hidden;background:var(--bg-panel)}.sidebar{display:none}.full-content-panel,.main-panel{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;width:100%;max-width:600px;align-self:center;box-sizing:border-box}.mobile-subjects-panel{background:var(--bg-sidebar);max-width:600px}.main-panel{border-right:none}.detail-panel{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;width:100%;max-width:600px;margin:0 auto;overflow-y:auto;-webkit-overflow-scrolling:touch;background:var(--bg-panel);border-right:none;border-top:1px solid var(--border)}.settings-overlay{align-items:stretch;padding:0}.settings-modal{width:100%!important;max-width:600px!important;margin:0 auto;border-radius:0!important;height:100dvh;max-height:100dvh;overflow-y:auto}.panel-header{padding:0 16px;height:48px}.task-item{padding:13px 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769px){.mobile-back-btn,.mobile-top-bar,.mobile-burger-btn,.mobile-fab{display:none}}@keyframes loading-fadein{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes loading-float{0%,to{transform:translateY(0)}50%{transform:translateY(-9px)}}@keyframes loading-pulse{0%,80%,to{transform:scale(.55);opacity:.35}40%{transform:scale(1);opacity:1}}.loading-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:36px;background:#0f172a}.loading-logo{display:flex;flex-direction:column;align-items:center;gap:14px;animation:loading-fadein .55s ease both}.loading-logo-icon{font-size:68px;line-height:1;animation:loading-float 2.8s ease-in-out infinite;filter:drop-shadow(0 8px 24px rgba(99,102,241,.35))}.loading-logo-name{font-size:26px;font-weight:700;color:#f1f5f9;letter-spacing:-.02em}.loading-dots{display:flex;gap:10px;animation:loading-fadein .55s .15s ease 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7px;border-radius:var(--radius-sm);font-size:11px;flex-shrink:0}.support-chat-email-bar{padding:5px 14px;font-size:11px;color:var(--text-tertiary);background:var(--bg-hover);border-bottom:1px solid var(--border);flex-shrink:0}.support-widget-messages{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:8px;min-height:0}.support-msg{display:flex;flex-direction:column;max-width:78%}.support-msg.mine{align-self:flex-end;align-items:flex-end}.support-msg.theirs{align-self:flex-start;align-items:flex-start}.support-bubble{padding:8px 12px;border-radius:12px;font-size:13px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.support-msg.mine .support-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:3px}.support-msg.theirs .support-bubble{background:var(--bg-app);color:var(--text-primary);border:1px solid var(--border);border-bottom-left-radius:3px}.support-msg.new .support-bubble{border:2px solid var(--accent)}.support-msg-time{font-size:10px;color:var(--text-tertiary);margin-top:2px;padding:0 3px}.support-reply-bar{display:flex;align-items:flex-end;gap:8px;padding:10px 12px;border-top:1px solid var(--border);background:var(--bg-panel);flex-shrink:0}.support-reply-input{flex:1;resize:none;padding:8px 10px;border-radius:var(--radius);font-size:13px;min-height:36px;max-height:100px;overflow-y:auto;line-height:1.4}.support-send-btn{width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background var(--transition),opacity var(--transition);padding:0}.support-send-btn:disabled{opacity:.45;cursor:default}.support-send-btn:not(:disabled):hover{background:var(--accent-hover)}.support-closed-notice{text-align:center;padding:12px;font-size:12px;color:var(--text-tertiary);border-top:1px solid 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var(--transition)}.support-filter-tab:hover{background:var(--bg-hover)}.support-filter-tab.active{background:var(--accent-light);color:var(--accent);border-color:var(--accent)}@media (max-width: 768px){.support-fab{bottom:76px;right:16px}.support-panel{bottom:0;right:0;left:0;width:100%;height:80vh;border-radius:16px 16px 0 0;border-bottom:none}}
