.pwa-chat-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:9999;display:flex;align-items:flex-end;justify-content:center;animation:chatFadeIn .2s ease}@keyframes chatFadeIn{0%{opacity:0}to{opacity:1}}.pwa-chat-container{width:100%;max-width:500px;height:92vh;background:#fff;border-radius:20px 20px 0 0;display:flex;flex-direction:column;overflow:hidden;animation:chatSlideUp .3s ease}@keyframes chatSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.pwa-chat-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#1e5a4b;color:#fff;flex-shrink:0}.pwa-chat-header-info{display:flex;align-items:center;gap:10px}.pwa-chat-avatar{width:38px;height:38px;border-radius:50%;background:#ffffff26;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.pwa-chat-header-info strong{display:block;font-size:15px;font-weight:700}.pwa-chat-route{display:block;font-size:11px;opacity:.8}.pwa-chat-close{width:32px;height:32px;border-radius:50%;border:none;background:#ffffff26;color:#fff;font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center}.pwa-chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:6px;background:#f0f2f5;-webkit-overflow-scrolling:touch}.pwa-chat-loading,.pwa-chat-empty{text-align:center;padding:40px 20px;color:#999;display:flex;flex-direction:column;align-items:center;gap:8px}.pwa-chat-spinner{width:28px;height:28px;border:3px solid #e0e0e0;border-top-color:#1e5a4b;border-radius:50%;animation:chatSpin .8s linear infinite}@keyframes chatSpin{to{transform:rotate(360deg)}}.pwa-chat-empty p{margin:0;font-weight:600;color:#777}.pwa-chat-empty span{font-size:13px}.pwa-chat-msg{max-width:80%;animation:msgIn .15s ease}@keyframes msgIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.pwa-msg-mine{align-self:flex-end}.pwa-msg-other{align-self:flex-start}.pwa-msg-system{align-self:center}.pwa-msg-sender{display:block;font-size:11px;font-weight:700;color:#1e5a4b;padding-left:10px;margin-bottom:1px}.pwa-msg-bubble{padding:10px 14px;border-radius:18px;font-size:14px;line-height:1.45;word-break:break-word;white-space:pre-wrap}.pwa-msg-mine .pwa-msg-bubble{background:#1e5a4b;color:#fff;border-bottom-right-radius:4px}.pwa-msg-other .pwa-msg-bubble{background:#fff;color:#333;border-bottom-left-radius:4px;box-shadow:0 1px 2px #0000000f}.pwa-msg-system .pwa-msg-bubble{background:#e0e0e0;color:#666;font-size:12px;border-radius:16px;padding:6px 14px}.pwa-msg-time{display:block;font-size:10px;color:#aaa;margin-top:2px;padding:0 10px}.pwa-msg-mine .pwa-msg-time{text-align:right}.pwa-msg-sending{opacity:.6}.pwa-msg-error .pwa-msg-bubble{background:#ffcdd2!important;color:#c62828!important}.pwa-msg-error .pwa-msg-time{color:#c62828}.pwa-chat-input-area{display:flex;align-items:flex-end;gap:8px;padding:10px 12px;background:#fff;border-top:1px solid #e8e8e8;flex-shrink:0;padding-bottom:max(10px,env(safe-area-inset-bottom))}.pwa-chat-input-area textarea{flex:1;border:none;background:#f0f2f5;border-radius:22px;padding:10px 16px;font-size:14px;color:#333;resize:none;outline:none;line-height:1.4;max-height:100px;font-family:inherit}.pwa-chat-input-area textarea::placeholder{color:#999}.pwa-chat-send{width:42px;height:42px;border-radius:50%;border:none;background:#1e5a4b;color:#fff;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .15s}.pwa-chat-send:disabled{background:#ccc}.pwa-chat-closed{text-align:center;padding:14px;background:#f5f5f5;border-top:1px solid #e8e8e8;font-size:13px;color:#999;font-weight:600}.pwa-chat-icon-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border-radius:20px;border:1px solid #1e5a4b;background:transparent;color:#1e5a4b;font-size:12px;font-weight:700;cursor:pointer;transition:all .2s;position:relative}.pwa-chat-icon-btn:hover,.pwa-chat-icon-btn:active{background:#e8f5e9}.pwa-chat-icon-btn.disabled{border-color:#ccc;color:#ccc;cursor:not-allowed;opacity:.5}.pwa-chat-badge{position:absolute;top:-5px;right:-5px;min-width:16px;height:16px;background:#c62828;color:#fff;border-radius:10px;font-size:10px;display:flex;align-items:center;justify-content:center;padding:0 4px;font-weight:700}