.chat-container{display:flex;flex-direction:column;height:100vh;background-color:#f5f5f5;max-width:800px;margin:0 auto}.chat-messages{flex:1;overflow-y:auto;padding:12px 15px 64px;background-color:#f5f5f5;-webkit-overflow-scrolling:touch}.message{display:flex;flex-direction:column;margin-bottom:16px}.message.visitor{align-items:flex-end}.message.agent{align-items:flex-start}.time-divider{display:flex;justify-content:center;align-items:center;margin:0 0 12px;padding:4px 12px;font-size:12px;color:#fff;background-color:#dcdcdc;border-radius:4px;width:fit-content;align-self:center}.system-message{display:flex;justify-content:center;width:100%}.system-bubble{background:#f5f5f5;color:#999;font-size:13px;padding:8px 16px;border-radius:12px;max-width:80%;text-align:center;line-height:1.5}.message-row{display:flex;align-items:flex-start;width:100%}.message.visitor .message-row{justify-content:flex-end}.avatar{width:40px;height:40px;border-radius:4px;flex-shrink:0;overflow:hidden;background:#f0f0f0}.avatar img{width:100%;height:100%;object-fit:cover;display:block}.message-body{max-width:70%;display:flex;flex-direction:column;margin:0 10px}.message.agent .message-body{align-items:flex-start}.message.visitor .message-body{align-items:flex-end}.bubble{padding:10px 14px;border-radius:4px;background:#fff;color:#000;font-size:16px;line-height:1.5;word-wrap:break-word;position:relative;display:inline-block;max-width:100%}.message.visitor .bubble{background:#95ec69;color:#000}.message.agent .bubble:before{content:"";position:absolute;left:-6px;top:14px;width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-right:6px solid #ffffff}.message.visitor .bubble:before{content:"";position:absolute;right:-6px;top:14px;width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:6px solid #95ec69}.image-bubble{padding:0;background:transparent;position:relative}.image-bubble:before{display:none}.message.visitor .image-bubble{background:transparent}.image-bubble img{max-width:200px;max-height:200px;border-radius:4px;cursor:pointer;display:block;background:transparent}.message.visitor .image-bubble img{border-radius:0;background:transparent}.image-bubble.sending img{opacity:.6}.image-bubble.failed img{opacity:.4}.send-progress{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;display:flex;align-items:center;justify-content:center}.progress-ring{transform:rotate(-90deg)}.progress-ring-circle{stroke:#fff;stroke-width:4;fill:none;stroke-dasharray:283;stroke-dashoffset:283;stroke-linecap:round;filter:drop-shadow(0 0 2px rgba(0,0,0,.3));transition:stroke-dashoffset .1s}.progress-text{position:absolute;font-size:14px;font-weight:700;color:#fff;text-shadow:0 0 2px rgba(0,0,0,.5)}.send-failed{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:30px;height:30px;background:#0009;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;cursor:pointer;transition:all .2s}.send-failed:hover{background:#000c;transform:translate(-50%,-50%) scale(1.1)}.chat-input-area{background:#f7f7f7;border-top:1px solid #dcdcdc;position:fixed;bottom:0;left:0;right:0;max-width:800px;margin:0 auto;z-index:100}.emoji-panel{display:flex;flex-wrap:wrap;gap:8px;padding:12px;background:#f5f5f5;border-bottom:1px solid #e5e5e5;max-height:180px;overflow-y:auto}.emoji-item{font-size:24px;cursor:pointer;padding:6px;border-radius:4px;transition:background-color .2s}.emoji-item:hover{background:#e8e8e8}.input-row{display:flex;align-items:center;gap:8px;padding:8px 12px;padding-bottom:calc(8px + env(safe-area-inset-bottom))}.tool-btn{width:36px;height:36px;border:none;background:transparent;border-radius:6px;font-size:24px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#576b95;padding:0;transition:background-color .2s}.tool-btn svg{width:24px;height:24px;stroke-width:2}.tool-btn:hover{background:#e8e8e8}.tool-btn:active{background:#dcdcdc}.message-input{flex:1;height:40px;border:1px solid #dcdcdc;border-radius:6px;padding:0 14px;font-size:16px;outline:none;background:#fff;transition:border-color .2s}.message-input:focus{border-color:#07c160}.message-input::placeholder{color:#999}.send-btn{padding:0 18px;height:40px;background:#07c160;color:#fff;border:none;border-radius:6px;font-size:15px;font-weight:500;cursor:pointer;transition:background-color .2s}.send-btn:hover{background:#06ad56}.send-btn:active{background:#06a452}.image-preview{position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000}.image-preview img{max-width:90%;max-height:90%}@media (max-width: 480px){.chat-input-area{padding-bottom:env(safe-area-inset-bottom);padding-bottom:constant(safe-area-inset-bottom)}.chat-input-area.keyboard-open{padding-bottom:0}.chat-messages{padding-bottom:calc(50px + env(safe-area-inset-bottom));padding-bottom:calc(50px + constant(safe-area-inset-bottom))}.chat-messages.keyboard-open{padding-bottom:16px}.input-row{padding:10px 10px 8px}.tool-btn{width:32px;height:32px}.tool-btn svg{width:22px;height:22px}.message-input,.send-btn{height:40px;font-size:15px}.send-btn{padding:0 16px}.emoji-item{font-size:22px;padding:4px}.message-body{max-width:72%}.bubble{padding:9px 12px;font-size:15px}.image-bubble img{max-width:180px;max-height:180px}.message.visitor .image-bubble{background:transparent}.message.visitor .image-bubble img{background:transparent;border-radius:5px}.send-progress{width:50px;height:50px}.avatar{width:36px;height:36px}.message.agent .bubble:before,.message.visitor .bubble:before{top:12px}}