:root{color:#1c1c1e;font-synthesis:none;--chat-canvas:#f4f6f9;--chat-incoming:#fff;--chat-outgoing:#007aff;--chat-border:#3c3c431a;--chat-radius:14px;background:#f4f6f9;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body,#root{overscroll-behavior:none;width:100%;height:100%;overflow:hidden}body{background:var(--chat-canvas);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:var(--chat-canvas);grid-template-rows:auto minmax(0,1fr) auto;margin:0 auto;display:grid;position:relative;box-shadow:0 0 24px #0000000d}.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;-webkit-backdrop-filter:blur(12px);background:#ffffffe6;border-bottom:1px solid #e5e5ea;align-items:center;gap:12px;display:flex}.service-avatar{color:#fff;width:38px;height:38px;box-shadow:none;background:linear-gradient(135deg,#007aff,#5ac8fa);border-radius:50%;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{color:#1c1c1e;margin:0;font-size:17px;font-weight:650}.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:#8e8e93;background:#0000000f;border-radius:12px;padding:4px 11px;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,#007aff,#5ac8fa);border-radius:50%;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:#c7c7cc;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:#8e8e93;margin:0 0 4px 2px;font-size:11px}.bubble{border:1px solid var(--chat-border);border-radius:var(--chat-radius);color:#1c1c1e;overflow-wrap:anywhere;white-space:pre-wrap;background:var(--chat-incoming);max-width:100%;padding:10px 14px 7px;line-height:1.45;box-shadow:0 1px 2px #0000000d}.bubble-text{min-width:72px}.mine .bubble{color:#fff;background:var(--chat-outgoing);border-color:#0000;box-shadow:0 1px 2px #005ccc1f}.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:#ffffffc2}.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));overscroll-behavior:none;touch-action:none;background:#fff;border-top:1px solid #e5e5ea;grid-template-columns:auto 1fr auto;align-items:end;gap:10px;display:grid;box-shadow:0 -3px 14px #00000008}.composer .image-button{color:#8e8e93;background:0 0;width:42px;padding:0}.composer .image-button svg,.composer .send-button 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#00000059;background:linear-gradient(#0f172a14,#0f172a45);justify-content:center;align-items:center;gap:8px;font-size:13px;font-weight:600;display:flex;position:absolute;inset:0}@keyframes pending-image-reveal{0%{opacity:.58;filter:brightness(.82)}to{opacity:.9;filter:brightness()}}.pending-image-status.failed{background:#4d121a8a}.pending-image-spinner{border:2px solid #ffffff6b;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.8s linear infinite pending-image-spin}.pending-image-retry{cursor:pointer}@keyframes pending-image-spin{to{transform:rotate(360deg)}}.image-preview{z-index:1000;padding:max(70px, calc(env(safe-area-inset-top) + 58px)) 12px max(70px, calc(env(safe-area-inset-bottom) + 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span:first-child{font-size:23px;line-height:1}.image-preview-save:disabled{cursor:wait;opacity:.72}.image-preview-save-status{top:max(64px, calc(env(safe-area-inset-top) + 52px));right:max(12px, env(safe-area-inset-right));z-index:3;color:#fff;background:#127d41eb;border-radius:14px;padding:7px 10px;font-size:12px;position:absolute;box-shadow:0 3px 12px #0000003d}.image-preview-save-status.is-error{background:#be2a2af0}.image-loading{border-radius:calc(var(--chat-radius) - 1px);background:linear-gradient(145deg,#edf2f8,#f8fafc 56%,#e8eef6);width:min(220px,58vw);height:148px;display:block;position:relative;overflow:hidden}.image-loading-skeleton:after{content:"";background:#97a4b52e;border-radius:999px;height:7px;position:absolute;inset:auto 14px 13px}.image-loading-shimmer{background:linear-gradient(105deg,#0000 25%,#ffffffb8 47%,#0000 68%);animation:1.25s ease-in-out infinite image-loading-shimmer;position:absolute;inset:0;transform:translate(-100%)}@keyframes 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.send-button{background:#007aff;border-radius:50%;width:44px;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 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