:root{color:#172033;font-synthesis:none;--chat-canvas:#edf1f7;--chat-incoming:#fff;--chat-outgoing:#cfe7fb;--chat-border:#5b6f8b1f;--chat-radius:10px;background:#edf1f7;font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body,#root{overscroll-behavior:none;width:100%;height:100%;overflow:hidden}body{background:#edf1f7;min-width:320px;margin:0;position:fixed;inset:0}#root{position:absolute;inset:0}button,textarea{font:inherit}button{cursor:pointer}.chat-shell{width:min(100%,760px);height:var(--chat-viewport-height,100dvh);background:#edf1f7;grid-template-rows:auto minmax(0,1fr) auto;margin:0 auto;display:grid;position:relative;box-shadow:0 0 34px #29487014}.scroll-latest{z-index:3;color:#52657a;background:#fffffff0;border:1px solid #5b6f8b2e;border-radius:50%;place-items:center;width:36px;height:36px;padding:0;font-size:18px;display:grid;position:absolute;bottom:76px;right:18px;box-shadow:0 4px 14px #23385224}.scroll-latest:focus-visible{outline-offset:2px;outline:3px solid #3568ee40}.chat-header{min-height:64px;padding:max(12px, env(safe-area-inset-top)) 16px 11px;background:#f3f5f8;border-bottom:1px solid #dfe5ed;align-items:center;gap:12px;display:flex}.service-avatar{color:#fff;width:38px;height:38px;box-shadow:none;background:linear-gradient(135deg,#3568ee,#4ba4f4);border-radius:10px;place-items:center;font-size:11px;font-weight:800;display:grid;overflow:hidden}.service-avatar img,.message-avatar img{object-fit:cover;width:100%;height:100%}.chat-header h1{margin:0;font-size:17px}.message-list{overscroll-behavior:contain;touch-action:pan-y;-webkit-overflow-scrolling:touch;min-height:0;padding:10px 16px 22px;scroll-padding-bottom:16px;overflow-y:auto}.message-list.has-messages{flex-direction:column;display:flex}.message-list.has-messages>:first-child{margin-top:auto}.history-more{justify-content:center;padding:4px 0 12px;display:flex}.history-more button{color:#65758b;font:inherit;cursor:pointer;background:#e1e7ef;border:0;border-radius:14px;padding:6px 14px;font-size:12px}.history-more button:disabled{cursor:default;opacity:.65}.welcome{color:#68758a;text-align:center;background:#f6f8fb;border-radius:14px;gap:6px;width:fit-content;max-width:85%;margin:8px auto 24px;padding:14px 18px;font-size:13px;display:grid}.welcome strong{color:#2b3548}.date-separator{justify-content:center;align-items:center;margin:18px 0 14px;display:flex}.date-separator span{color:#8a94a5;background:#dde2ea;border-radius:9px;padding:4px 10px;font-size:11px}.message-row{align-items:flex-start;gap:8px;margin:9px 0;display:flex}.message-row.group-follow{margin-top:-5px}.message-row.mine{justify-content:flex-end}.message-avatar{color:#fff;width:34px;height:34px;box-shadow:none;background:linear-gradient(135deg,#3568ee,#4ba4f4);border-radius:8px;flex:0 0 34px;place-items:center;margin-top:19px;font-size:11px;font-weight:800;display:grid;overflow:hidden}.message-avatar.placeholder{visibility:hidden}.message-avatar.customer-avatar{color:#fff;background:#b8c0cb;margin-top:0;font-size:14px}.message-content{flex-direction:column;align-items:flex-start;max-width:min(78%,540px);display:flex}.mine .message-content{align-items:flex-end}.mine .sender-label{text-align:right;text-overflow:ellipsis;white-space:nowrap;max-width:min(100%,360px);margin-left:0;margin-right:2px;overflow:hidden}.sender-label{color:#7d8798;margin:0 0 4px 2px;font-size:11px}.bubble{border:1px solid var(--chat-border);border-radius:var(--chat-radius);color:#3c4654;overflow-wrap:anywhere;white-space:pre-wrap;background:var(--chat-incoming);max-width:100%;padding:9px 12px 6px;line-height:1.5;box-shadow:0 1px 2px #2338520a}.bubble-text{min-width:72px}.mine .bubble{color:#31445b;background:var(--chat-outgoing);border-radius:var(--chat-radius);box-shadow:0 1px 2px #23567e0d}.bubble-image{border:1px solid var(--chat-border);border-radius:var(--chat-radius);background:var(--chat-incoming);padding:0;position:relative;overflow:hidden}.mine .bubble-image{background:var(--chat-outgoing)}.bubble-image .message-meta{z-index:1;color:#fff;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#141f2d94;border-radius:7px;margin:0;padding:2px 6px;position:absolute;bottom:6px;right:6px}:is(.bubble-image:has(.image-retry),.bubble-image:has([aria-live])){background:var(--chat-incoming);padding:0}:is(.bubble-image:has(.image-retry) .message-meta,.bubble-image:has([aria-live]) .message-meta){color:#98a1af;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;width:fit-content;margin:4px 0 0 auto;position:static}.message-meta{color:#98a1af;justify-content:flex-end;gap:6px;margin-top:2px;font-size:10px;display:flex}.mine .message-meta{color:#72869a}.message-meta small{font-size:inherit}.retry-button{color:#c43b46;background:0 0;border:0;margin-top:5px;padding:2px 4px;font-size:11px}.retry-button:disabled{opacity:.55}.composer{padding:10px 10px max(10px, env(safe-area-inset-bottom));box-shadow:none;overscroll-behavior:none;touch-action:none;background:#e4e8ee;border-top:1px solid #dce2ea;grid-template-columns:auto 1fr auto;align-items:end;gap:8px;display:grid}.composer .image-button{color:#53606d;background:0 0;width:42px;padding:0}.composer .image-button svg,.composer .send-button svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:24px;height:24px}.message-image{border-radius:calc(var(--chat-radius) - 1px);object-fit:contain;width:min(240px,62vw);max-height:320px;display:block}.message-image-button{border-radius:calc(var(--chat-radius) - 1px);min-height:0;color:inherit;cursor:zoom-in;background:0 0;border:0;padding:0;display:block}.message-image-button:focus-visible{outline-offset:2px;outline:2px solid #3568ee}.attachment-image-frame{display:block}.image-preview{z-index:1000;padding:max(52px, env(safe-area-inset-top)) 20px max(28px, env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0a121ee0;place-items:center;display:grid;position:fixed;inset:0}.image-preview-stage{overscroll-behavior:contain;place-items:center;width:100%;height:100%;display:grid;overflow:auto}.image-preview-stage>img{object-fit:contain;border-radius:8px;max-width:100%;max-height:100%;box-shadow:0 14px 48px #00000059}.image-preview-toolbar{top:max(12px, env(safe-area-inset-top));z-index:1;color:#fff;background:#00000070;border-radius:20px;align-items:center;gap:10px;min-height:38px;padding:4px 8px;display:flex;position:absolute;left:50%;transform:translate(-50%)}.image-preview-toolbar button{color:#fff;background:#ffffff24;border:0;border-radius:50%;width:30px;height:30px;padding:0;font-size:22px;line-height:1}.image-preview-toolbar button:disabled{cursor:default;opacity:.35}.image-preview-toolbar span{text-align:center;min-width:44px;font-size:12px}.image-preview-close{top:max(12px, env(safe-area-inset-top));color:#fff;background:#ffffff29;border:0;border-radius:50%;width:38px;min-height:38px;padding:0;font-size:28px;font-weight:400;line-height:1;position:absolute;right:14px}.image-loading{color:#7d8796;place-content:center;justify-items:center;gap:8px;width:min(220px,58vw);min-height:112px;font-size:12px;display:grid}.image-loading-mark{background:radial-gradient(circle at 68% 30%,#aeb9c8 0 2px,#0000 3px),linear-gradient(145deg,#0000 49%,#aeb9c8 50% 57%,#0000 58%);border:2px solid #aeb9c8;border-radius:4px;width:28px;height:22px}.image-retry{border-radius:calc(var(--chat-radius) - 1px);color:#a72d39;cursor:pointer;width:min(220px,58vw);min-height:112px;font:inherit;background:#fff6f7;border:0;padding:12px}.image-retry:focus-visible{outline-offset:2px;outline:2px solid #3568ee}.send-error{color:#c43b46;grid-column:1/-1;margin:0;font-size:12px}.composer textarea{resize:none;touch-action:none;background:#fff;border:1px solid #dce3ec;border-radius:8px;outline:none;height:44px;min-height:44px;max-height:120px;padding:11px 13px;overflow-y:auto}.composer textarea:focus{border-color:#7b9cf3;box-shadow:0 0 0 3px #3568ee1a}.composer button,.center-card button{color:#fff;background:#3568ee;border:0;border-radius:9px;min-height:44px;padding:0 20px;font-weight:700}.composer .send-button{background:#278bc1;width:46px;padding:0}.composer .send-button svg{stroke:#fff;width:26px;height:26px}.send-progress{font-size:10px}.composer button:disabled{cursor:default;opacity:.42}.center-card{text-align:center;color:#657187;place-content:center;justify-items:center;gap:12px;min-height:100vh;padding:28px;display:grid}.center-card h1{color:#202b3e;margin:0;font-size:22px}.center-card p{margin:0}.verification-card{width:min(100%,420px);margin:0 auto}.turnstile-container{width:100%;min-height:65px}.verification-error{color:#c43b46}.spinner{border:3px solid #dbe5f4;border-top-color:#3568ee;border-radius:50%;width:34px;height:34px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width>=761px){body{padding:22px}.chat-shell{height:calc(var(--chat-viewport-height,100dvh) - 44px);border-radius:22px;overflow:hidden}}@media (width<=760px){.chat-shell{top:var(--chat-viewport-offset-top,0px);height:var(--chat-viewport-height,100dvh);margin:0;position:fixed;left:0;right:0}}@media (width<=480px){.chat-header{min-height:56px;padding:max(9px, env(safe-area-inset-top)) 12px 8px}.service-avatar{border-radius:8px;width:34px;height:34px}.chat-header h1{font-size:16px}.message-list{padding-inline:12px}.message-content{max-width:80%}}@media (prefers-reduced-motion:reduce){.spinner{animation-duration:1.8s}.message-list{scroll-behavior:auto}}