:root{color:var(--ink);font-synthesis:none;--accent:#5148ce;--soft:#eeecff;--ink:#20243a;--muted:#6d748e;--secondary:#575d76;--line:#e6e8ef;--wash:#f8f9fc;--rail:#f2f3f8;background:#f1f3f8;font:13px/1.5 -apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body,h1,h2,p{margin:0}button,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.page{--page-gutter:clamp(16px, 4dvh, 36px);min-height:100dvh;padding:var(--page-gutter) 20px;background:radial-gradient(at 50% 0,#e8edf7,#0000 65%),#f1f3f8;place-items:center;display:grid}.chat{--chat-gutter:24px;--soft:color-mix(in srgb, var(--accent) 10%, white);width:min(672px,100%);height:min(680px, calc(100dvh - 2 * var(--page-gutter)));border:1px solid var(--line);background:#fff;border-radius:16px;grid-template-rows:auto minmax(0,1fr);min-height:220px;display:grid;overflow:hidden;box-shadow:0 18px 56px #22315713,0 2px 6px #22315709;container:chat/size}.page[data-visible-viewport]{inset:var(--viewport-top) 0 auto;height:var(--viewport-height);min-height:0;padding-block:0;position:fixed}.page[data-visible-viewport]>.chat{height:100%;min-height:0}.header{padding:13px var(--chat-gutter);border-bottom:1px solid var(--line);align-items:center;gap:12px;display:flex}.chat[aria-busy=true]>.header,.delayed-status{visibility:hidden;animation:1s step-end forwards reveal-chat-status}@keyframes reveal-chat-status{to{visibility:visible}}.mark{object-fit:contain;border-radius:8px;flex:none;width:36px;height:36px}.heading{flex:1;min-width:0}h1{letter-spacing:-.02em;overflow-wrap:anywhere;font-size:18px}.heading h1{-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.3;display:-webkit-box;overflow:hidden}.heading p{color:var(--muted);align-items:center;gap:6px;margin-top:3px;font-size:12px;display:flex}.dot{background:#86849a;border-radius:50%;flex:none;width:7px;height:7px}.dot.online{background:#18785b}.language{min-height:32px;color:var(--secondary);border:1px solid var(--line);background:#fff;border-radius:7px;align-items:center;gap:5px;padding:0 7px;font-size:11px;font-weight:600;display:inline-flex}.language:hover{background:var(--soft);color:var(--accent)}.language-picker{flex:none;position:relative}.language-trigger{min-height:32px;color:var(--secondary);background:0 0;border:0;border-radius:7px;align-items:center;gap:6px;padding:0 7px;font-size:12px;font-weight:650;display:flex}.language-trigger:is(:hover,[aria-expanded=true]){background:var(--wash);color:var(--ink)}.language-chevron{color:var(--muted)}.language-options{z-index:2;border:1px solid var(--line);background:#fff;border-radius:9px;width:144px;padding:4px;position:absolute;inset-block-start:calc(100% + 5px);inset-inline-end:0;box-shadow:0 6px 20px #1b25441a}.language-options button{width:100%;min-height:34px;color:var(--ink);text-align:start;background:0 0;border:0;border-radius:6px;justify-content:space-between;align-items:center;padding:0 8px;display:flex}.language-options button[aria-pressed=true]{background:var(--wash);font-weight:650}.language-options button:hover{background:var(--rail)}.language-picker button:focus-visible{outline-offset:-2px}.transcript{min-height:0;padding:20px var(--chat-gutter);background:var(--wash);overflow-anchor:none;flex-direction:column;display:flex;overflow:auto}.transcript>*+*{margin-block-start:16px}.transcript>.message[data-joined-before]{margin-block-start:4px}.center{text-align:center;place-self:center;justify-items:center;gap:8px;margin:auto 0;padding:12px;display:grid}.center h2{font-size:18px}.center p,.loading{color:var(--muted);font-size:14px;line-height:1.5}.loading{text-align:center;align-self:center}.welcome-icon{background:var(--soft);width:52px;height:52px;color:var(--accent);border-radius:17px;place-items:center;margin-bottom:4px;display:grid}.message{flex:none;align-self:flex-start;justify-items:start;gap:4px;min-width:0;max-width:min(84%,460px);display:grid}.message.outgoing{align-self:flex-end;justify-items:end}.message time{color:var(--muted);font-variant-numeric:tabular-nums;padding-inline:2px;font-size:11px;line-height:1.3}.bubble{border:1px solid var(--line);white-space:pre-wrap;overflow-wrap:anywhere;background:#fff;border-radius:13px;min-width:0;max-width:100%;padding:8px 12px;font-size:14px}.outgoing .bubble{background:color-mix(in srgb, var(--accent) 12%, white);border-color:#0000}.message:not(.outgoing)[data-joined-before] .bubble{border-start-start-radius:5px}.message:not(.outgoing)[data-joined-after] .bubble{border-end-start-radius:5px}.outgoing[data-joined-before] .bubble{border-start-end-radius:5px}.outgoing[data-joined-after] .bubble{border-end-end-radius:5px}.bubble a,.text-button{color:var(--accent)}.text-button{background:0 0;border:0;padding:5px;font-size:13px;text-decoration:underline}.more{align-self:center}.composer{padding:8px var(--chat-gutter) 10px;border-top:1px solid var(--line);gap:6px;display:grid}.composer-field{--composer-action:32px;border:1px solid var(--line);background:#fff;border-radius:12px;grid-template-columns:minmax(0,1fr) auto;align-items:center;column-gap:8px;padding:4px 5px;display:grid}.composer-field:focus-within{border-color:var(--accent)}.composer-field textarea{resize:vertical;min-width:0;max-height:min(128px,26dvh);color:inherit;background:0 0;border:0;border-radius:7px;padding:4px 8px;font-size:14px}.composer-field textarea:focus-visible{outline:none}.composer-field textarea::placeholder{color:var(--muted)}.composer-field:has(.attachment-tools) textarea{grid-column:1/-1}@supports (field-sizing:content){.composer-field textarea{field-sizing:content;resize:none}}.send{width:var(--composer-action);height:var(--composer-action);color:#fff;background:var(--accent);border:0;border-radius:8px;grid-column:2;place-items:center;display:grid}.send:disabled{opacity:1;background:var(--rail);color:var(--muted)}.send:hover:not(:disabled){filter:brightness(.93)}.error{color:#a92848;margin-bottom:5px;font-size:14px}@media (width<=600px),(width<=950px) and (height<=420px) and (orientation:landscape){.page{padding:0 env(safe-area-inset-right) 0 env(safe-area-inset-left)}.chat{--chat-gutter:16px;width:100%;height:100dvh;min-height:0;box-shadow:none;border:0;border-radius:0}.header{padding-block-start:max(12px, env(safe-area-inset-top))}.composer{padding-block-end:max(8px, env(safe-area-inset-bottom))}.composer-field textarea{font-size:16px}}@media (width<=600px),(pointer:coarse){.composer-field{--composer-action:44px}.language,.language-picker 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img{object-fit:cover;vertical-align:middle;border-radius:50%;width:19px;height:19px;margin-inline-end:5px}.merchant-link-icon{width:28px;height:28px;color:var(--accent);background:var(--soft);border-radius:7px;place-items:center;display:grid;overflow:hidden}.merchant-ads:first-child{margin-top:0}.visitor-content{grid-template-columns:minmax(0,1fr);min-width:0;min-height:0;display:grid}.visitor-content:has(.merchant-content){grid-template-columns:minmax(0,1fr) minmax(188px,30%)}.visitor-main{grid-template-rows:minmax(0,1fr) auto;min-width:0;min-height:0;display:grid}.visitor-main:has(.announcement){grid-template-rows:auto minmax(0,1fr) auto}.transcript:has(.welcome-message){padding-bottom:28px}.welcome-message{align-self:stretch;gap:4px;max-width:none}.welcome-message .bubble{max-width:min(84%,460px)}.message 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a>svg{color:var(--muted);flex:none}.merchant-content li a{border:1px solid var(--line);min-width:0;color:var(--ink);background:#fff;border-radius:9px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:7px;padding:6px;font-size:12px;font-weight:600;text-decoration:none;display:grid}.merchant-content li a:hover{border-color:var(--accent)}.merchant-content li a span{overflow-wrap:anywhere;min-width:0}.merchant-content li img{object-fit:cover;width:100%;height:100%}.merchant-links h3,.merchant-toggle{color:var(--ink);align-items:center;gap:7px;font-size:13px;font-weight:650;display:flex}.merchant-links h3{margin:0}.merchant-links h3 svg,.merchant-toggle svg{color:var(--accent)}.merchant-toggle{background:0 0;border:0;width:100%;padding:4px 0;display:none}.merchant-toggle svg:last-child{margin-left:auto}.merchant-ads{margin-top:14px}.merchant-ads img{aspect-ratio:2.5;object-fit:cover;border-radius:8px;width:100%;display:block}.ad-controls{color:var(--muted);justify-content:center;align-items:center;gap:6px;margin-top:2px;font-size:11px;display:flex}.ad-controls button,.attachment-tools .icon{color:var(--secondary);background:0 0;border:0;border-radius:7px;place-items:center;width:28px;height:29px;display:grid}.ad-controls button{width:26px;height:26px}.attachment-tools .icon{width:var(--composer-action);height:var(--composer-action)}.ad-controls button:hover,.attachment-tools .icon:hover{color:var(--accent);background:var(--soft)}.visitor-faq{grid-template-columns:minmax(0,1fr);align-self:start;gap:4px;width:min(100%,320px);display:grid}.visitor-faq>strong{color:var(--secondary);margin-bottom:4px;font-size:11px}.faq-button{border:1px solid var(--line);text-align:left;color:var(--accent);overflow-wrap:anywhere;background:#fff;border-radius:7px;justify-content:space-between;align-items:center;gap:7px;padding:7px 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(prefers-reduced-motion:reduce){.announcement-reel{width:auto;animation:none}.announcement-reel span{white-space:normal;overflow-wrap:anywhere;min-width:0;padding:0}.announcement-reel span+span{display:none}}@media (width<=600px){.visitor-content:has(.merchant-content){grid-template-rows:auto minmax(0,1fr);grid-template-columns:minmax(0,1fr)}.merchant-content{border-left:0;border-bottom:1px solid var(--line);grid-row:1;max-height:38dvh;padding:0}.merchant-content:has(.merchant-links.expanded){overscroll-behavior:contain;max-height:max(38dvh,100dvh - 405px);scroll-padding-top:44px}.merchant-links.expanded .merchant-toggle{z-index:1;background:var(--wash);position:sticky;top:0}.merchant-content ul{margin:0;padding:0 12px 9px}.merchant-ads{margin:0;padding:0 12px 5px}.merchant-ads:first-child{padding-top:8px}.ad-slide{max-width:310px;margin-inline:auto}.merchant-links h3,.merchant-links:not(.expanded) ul{display:none}.merchant-toggle{min-height:36px;color:var(--accent);padding:9px 13px;display:flex}.merchant-toggle[aria-expanded=true] svg:last-child{transform:rotate(180deg)}@container chat (height<=420px){:is(.merchant-content,.merchant-content:has(.merchant-links.expanded)){max-height:28cqh}}}@container chat (height<=420px){.pending-attachments{max-height:20cqh}}@media (width<=600px),(pointer:coarse){.pending-attachments .icon{width:32px;height:32px}}@media (pointer:coarse){.merchant-toggle,.merchant-content li a,.faq-button{min-height:44px}}