*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--app-vh: 100vh;--app-vh: 100dvh}html,body,#root{width:100%;height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#eef2f7;overflow:hidden}.page-shell{width:100%;min-height:100%;display:flex;align-items:center;justify-content:center;padding:20px}.chat-wrapper{width:420px;max-width:100%;height:720px;max-height:95vh;background:#fff;border-radius:20px;box-shadow:0 20px 60px #0000001f,0 4px 20px #0000000f;display:flex;flex-direction:column;overflow:hidden}.chat-header{background:linear-gradient(135deg,#4f9cf9,#2d7ff9);padding:18px 20px 16px;display:flex;align-items:center;gap:14px;flex-shrink:0}.header-avatar{width:44px;height:44px;border-radius:50%;background:#ffffff40;display:flex;align-items:center;justify-content:center;flex-shrink:0;border:2px solid rgba(255,255,255,.5);overflow:hidden}.header-avatar svg{width:26px;height:26px;fill:#fff}.header-avatar-image{width:100%;height:100%;object-fit:cover;display:block}.header-info{flex:1}.header-name{font-size:16px;font-weight:600;color:#fff;letter-spacing:.3px}.header-status{display:flex;align-items:center;gap:5px;margin-top:3px}.status-dot{width:7px;height:7px;border-radius:50%;animation:pulse 2s infinite}.status-dot.is-online{background:#a8f0c6}.status-dot.is-offline{background:#f5b5b5}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.status-text{font-size:12px;color:#ffffffd9}.notice-bar{background:linear-gradient(90deg,#1a1a2e,#16213e,#1a1a2e);padding:10px 18px;display:flex;align-items:center;justify-content:center;gap:12px;flex-shrink:0;position:relative;overflow:hidden}.notice-bar:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 0%,rgba(79,156,249,.08) 30%,rgba(79,156,249,.08) 70%,transparent 100%)}.notice-label{font-size:12px;color:#ffffffa6;letter-spacing:.5px;white-space:nowrap;position:relative;z-index:1}.notice-dot{width:6px;height:6px;background:#4f9cf9;border-radius:50%;flex-shrink:0;animation:pulse 2s infinite;position:relative;z-index:1}.quick-tags{padding:12px 16px 8px;display:flex;gap:8px;overflow-x:auto;flex-shrink:0;scrollbar-width:none}.quick-tags::-webkit-scrollbar{display:none}.quick-tag{flex-shrink:0;padding:5px 12px;background:#f0f7ff;border:1px solid #c8e0ff;border-radius:20px;font-size:12px;color:#3a7bd5;cursor:pointer;transition:all .2s;white-space:nowrap}.quick-tag:hover{background:#daeeff;border-color:#4f9cf9}.chat-hint{margin:0 16px;padding:8px 10px;border-radius:10px;font-size:12px;color:#8d5e20;background:#fff4dc;border:1px solid #ffe2a8}.chat-body{flex:1;overflow-y:auto;padding:16px 16px 8px;display:flex;flex-direction:column;gap:18px;scrollbar-width:thin;scrollbar-color:#dde6f0 transparent}.chat-body::-webkit-scrollbar{width:4px}.chat-body::-webkit-scrollbar-track{background:transparent}.chat-body::-webkit-scrollbar-thumb{background:#dde6f0;border-radius:4px}.time-divider{text-align:center;font-size:11px;color:#aab4c4;position:relative}.time-divider span{background:#eef2f7;padding:0 10px;position:relative;z-index:1}.time-divider:before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:#dde6f0}.msg-row{display:flex;align-items:flex-end;gap:10px}.msg-row.right{flex-direction:row-reverse}.msg-avatar{width:34px;height:34px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600}.msg-avatar.agent{background:linear-gradient(135deg,#4f9cf9,#2d7ff9)}.msg-avatar.agent svg{width:18px;height:18px;fill:#fff}.msg-avatar.user{background:linear-gradient(135deg,#a8d8a8,#6bbf6b);color:#fff;font-size:13px}.msg-content-group{display:flex;flex-direction:column;gap:4px;max-width:72%}.sender-name{font-size:11px;color:#aab4c4;padding:0 4px}.msg-row.right .sender-name{text-align:right}.bubble{padding:11px 14px;border-radius:16px;font-size:14px;line-height:1.6;word-break:break-word;white-space:pre-line}.bubble.agent-bubble{background:#f5f8ff;color:#2c3e58;border-bottom-left-radius:4px;box-shadow:0 1px 3px #0000000f}.bubble.user-bubble{background:linear-gradient(135deg,#4f9cf9,#2d7ff9);color:#fff;border-bottom-right-radius:4px;box-shadow:0 2px 8px #4f9cf959}.msg-time{font-size:10px;color:#c2ccd8;padding:0 4px}.msg-row.right .msg-time{text-align:right}.bubble-img{border-radius:12px;overflow:hidden;max-width:220px;border:1px solid #dce7f8}.bubble-img img{width:100%;display:block}.bubble-card{background:#f5f8ff;border:1px solid #dde8ff;border-radius:14px;overflow:hidden;max-width:260px;box-shadow:0 1px 4px #0000000f}.card-header{background:#eef4ff;padding:9px 12px;font-size:12px;color:#7a9bc8;border-bottom:1px solid #dde8ff;display:flex;align-items:center;gap:5px}.card-header svg{width:12px;height:12px;stroke:#7a9bc8;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.card-body{padding:10px 12px}.card-title{font-size:13px;font-weight:600;color:#2c3e58;margin-bottom:4px}.card-desc{font-size:12px;color:#7a8fa6;line-height:1.5;white-space:pre-line}.card-tip{margin-top:8px;color:#4f9cf9;font-size:12px;font-weight:600}.typing-indicator{display:flex;align-items:center;gap:4px;padding:12px 14px;background:#f5f8ff;border-radius:16px 16px 16px 4px;width:fit-content}.typing-dot{width:7px;height:7px;background:#a8bfd8;border-radius:50%;animation:typing 1.4s infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing{0%,80%,to{transform:translateY(0);opacity:.5}40%{transform:translateY(-6px);opacity:1}}.chat-footer{border-top:1px solid #edf1f7;padding:10px 14px 14px;flex-shrink:0;background:#fff}.toolbar{display:flex;align-items:center;gap:4px;padding-bottom:8px}.tool-btn{width:32px;height:32px;background:none;border:none;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.tool-btn:hover{background:#f0f4f9}.tool-btn:disabled{opacity:.5;cursor:not-allowed}.tool-btn svg{width:18px;height:18px;stroke:#8899b4;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.toolbar-divider{width:1px;height:18px;background:#e4eaf3;margin:0 2px}.input-row{display:flex;align-items:center;gap:10px;background:#f5f8fc;border:1.5px solid #e0e8f3;border-radius:14px;padding:8px 10px 8px 14px;transition:border-color .2s,box-shadow .2s}.input-row:focus-within{border-color:#4f9cf9;box-shadow:0 0 0 3px #4f9cf91f}.msg-input{flex:1;border:none;background:transparent;outline:none;font-size:14px;color:#2c3e58;resize:none;line-height:1.5;max-height:100px;min-height:24px;font-family:inherit;padding:2px 0;overflow-y:auto}.msg-input::placeholder{color:#b0bcc8}.send-btn{width:36px;height:36px;background:linear-gradient(135deg,#4f9cf9,#2d7ff9);border:none;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:opacity .2s,transform .15s;box-shadow:0 2px 8px #4f9cf966}.send-btn:hover{opacity:.9;transform:scale(1.05)}.send-btn:active{transform:scale(.96)}.send-btn:disabled{opacity:.5;transform:none;cursor:not-allowed}.send-btn svg{width:17px;height:17px;fill:#fff;margin-left:2px}.footer-hint{text-align:center;font-size:11px;color:#c4cdd8;margin-top:8px}.hidden-file-input{display:none}.msg-status{font-size:10px;color:#a8d8f8;text-align:right;padding-right:4px}@media(max-width:480px){.page-shell{height:var(--app-vh);min-height:var(--app-vh);padding:0;align-items:stretch;overflow:hidden}.chat-wrapper{width:100%;height:100%;min-height:0;border-radius:0}.msg-input{font-size:16px}.chat-footer{padding-bottom:calc(14px + env(safe-area-inset-bottom))}}@media(hover:none)and (pointer:coarse){.msg-input{font-size:16px}}