.chat-fab{position:fixed;bottom:7px;right:75px;width:64px;height:64px;background:linear-gradient(135deg,#00c6ff,#0072ff);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 12px 30px rgba(0,0,0,0.25);z-index:9999;animation:floatShake 3s infinite ease-in-out}.chat-icon{width:28px;height:28px;fill:white}.chat-fab.attention{animation:attentionPulse 1.5s infinite}@keyframes attentionPulse{0%{transform:scale(1);box-shadow:0 0 0 rgba(0,114,255,0.4)}50%{transform:scale(1.08);box-shadow:0 0 25px rgba(0,114,255,0.6)}100%{transform:scale(1);box-shadow:0 0 0 rgba(0,114,255,0.4)}}@keyframes floatShake{0%{transform:translateY(0)}50%{transform:translateY(-3px)}100%{transform:translateY(0)}}.pulse{position:absolute;width:100%;height:100%;border-radius:50%;background:rgba(0,114,255,0.35);animation:pulseAnim 2s infinite;z-index:1}@keyframes pulseAnim{0%{transform:scale(1);opacity:0.7}70%{transform:scale(1.8);opacity:0}100%{opacity:0}}.chat-hint{position:fixed;bottom:95px;right:20px;display:none;flex-direction:row-reverse;align-items:center;justify-content:space-between;gap:12px;direction:rtl;text-align:right;padding:12px 14px;max-width:260px;background:linear-gradient(135deg,rgba(0,198,255,0.95),rgba(0,114,255,0.95));backdrop-filter:blur(10px);color:#fff;font-size:13px;font-family:sans-serif;border-radius:14px;box-shadow:0 12px 30px rgba(0,0,0,0.25);z-index:9999;animation:hintPop 0.35s ease}.hint-text{line-height:1.7;text-align:right;flex:1}.chat-hint .close{cursor:pointer;font-size:14px;opacity:0.85;transition:0.2s;flex-shrink:0}.chat-hint .close:hover{opacity:1;transform:scale(1.2)}@keyframes hintPop{0%{opacity:0;transform:translateY(20px) scale(0.95)}100%{opacity:1;transform:translateY(0) scale(1)}}