:root{color-scheme:light;--navy:#132a3b;--ink:#182d3d;--muted:#7c8993;--gold:#b38c55;--border:#e5e9eb;--blue:#176467;--paper:#f7f7f3}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper)}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.4}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid #b38c55;outline-offset:3px}button{transition:background .15s,transform .15s}button:active:not(:disabled){transform:translateY(1px)}
.site{max-width:1480px;margin:auto;padding:0 6.2vw}.site-header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dde2df}.brand{display:inline-flex;align-items:center;gap:12px;font-size:19px;font-weight:650;letter-spacing:1px}.brand-mark{display:flex;align-items:center;justify-content:center;width:42px;height:42px;background:var(--navy);color:#e4cba5;border-radius:12px}.brand-sub{display:block;font-size:10px;color:var(--muted);font-weight:400;letter-spacing:2px;margin-top:1px}.header-note{font-size:12px;letter-spacing:1px;color:#89938e}.guest-layout{display:grid;grid-template-columns:1fr 1.14fr;gap:6.5vw;padding:48px 0 30px;align-items:center;min-height:calc(100svh - 162px)}.intro{padding:20px 0;align-self:stretch;display:flex;flex-direction:column}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:600;color:var(--gold)}.intro h1{font-family:"Noto Serif SC","Songti SC",SimSun,serif;font-size:clamp(38px,4.5vw,65px);line-height:1.33;letter-spacing:-2px;font-weight:600;margin:26px 0 22px}.gold-dot{color:var(--gold)}.intro-copy{font-size:15px;line-height:2;color:#71818b;margin:0}.topic-label{font-size:11px;color:#95a09e;letter-spacing:2px;margin-top:40px;margin-bottom:10px}.topics{padding:0;margin:0;list-style:none;max-width:350px}.topics li{display:flex;align-items:center;gap:20px;font-size:14px;padding:17px 0;border-bottom:1px solid #e4e7e1}.topics span{font-family:Georgia,serif;font-style:italic;font-size:16px;color:var(--gold)}.intro-footer{display:flex;align-items:flex-start;gap:15px;margin-top:auto;padding-top:40px}.small-star{font-size:34px;color:#b49465;line-height:1}.intro-footer strong{font-size:12px;font-weight:500}.intro-footer p{font-size:10px;line-height:1.9;color:#8d9695;max-width:280px;margin:5px 0 0}.chat-card{border-radius:22px;border:1px solid #e1e5e4;background:white;box-shadow:0 18px 70px #1e3d4b08;overflow:hidden;height:min(780px,calc(100svh - 190px));min-height:590px}.chat-room{display:flex;flex-direction:column;height:100%;min-height:0;background:white}.chat-head{display:flex;align-items:center;gap:12px;min-height:86px;padding:18px 24px;border-bottom:1px solid var(--border)}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;color:#4f716b;background:#edf3ef;flex:none}.chat-head h2{font-size:15px;font-weight:600;margin:0 0 5px}.chat-head p{font-size:10px;color:#8a969d;margin:0}.private-badge{display:flex;align-items:center;gap:5px;color:#8c979b;font-size:10px;margin-left:auto;white-space:nowrap}.message-list{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:24px;scrollbar-width:thin;scrollbar-color:#dbe1df transparent}.system-label{display:block;color:#9da7ab;font-size:10px;margin-bottom:16px}.welcome h3{font-size:16px;font-weight:550;margin:0 0 10px}.welcome p{font-size:12px;line-height:1.9;color:#819098;margin:0}.quick-questions{display:flex;flex-direction:column;gap:8px;margin:22px 0 10px}.quick-questions button{display:flex;align-items:center;justify-content:space-between;border:1px solid #e7ece9;background:#fafbf9;color:#53675f;text-align:left;border-radius:8px;padding:11px 13px;font-size:12px}.quick-questions button:hover{background:#f0f5ee;border-color:#c8d9cf}.message{margin:18px 0;display:flex;flex-direction:column;align-items:flex-start}.message.mine{align-items:flex-end}.message-meta{font-size:10px;color:#98a1a6;margin:0 3px 6px;max-width:100%;overflow-wrap:anywhere}.bubble{padding:12px 15px;border-radius:3px 14px 14px 14px;background:#f0f3f0;max-width:89%;font-size:13px;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere}.mine .bubble{background:#1e5456;color:white;border-radius:14px 3px 14px 14px}.thread-note{font-size:10px;color:#a0a8ad;text-align:center;margin:24px 0 0}.composer{border-top:1px solid var(--border);padding:15px 22px 14px;background:white}.name-label{display:flex;gap:7px;align-items:center;font-size:11px;margin-bottom:13px}.name-label span{color:#a2acae;font-size:10px}.name-label input{flex:1;min-width:0;border:0;background:transparent;outline:0;text-align:right;font-size:11px;padding:5px 0;color:var(--ink)}.consent{display:flex;align-items:flex-start;gap:7px;font-size:10px;line-height:1.65;color:#8a979a;margin-bottom:13px}.consent input{margin:2px 0 0;accent-color:var(--blue);flex:none;width:13px;height:13px}.input-wrap{display:flex;align-items:flex-end;gap:10px;background:#f7f8f6;border:1px solid #e5eae6;border-radius:12px;padding:12px}.input-wrap:focus-within{border-color:#a7bfb3;box-shadow:0 0 0 2px #d6e3dc35}.input-wrap textarea{flex:1;min-width:0;resize:none;border:0;background:none;outline:0;font-size:13px;line-height:1.7;min-height:44px;max-height:130px;color:var(--ink)}.input-wrap textarea::placeholder{color:#a0aba9}.send{width:36px;height:36px;flex:none;display:grid;place-items:center;border:0;border-radius:9px;background:var(--navy);color:white}.composer-note{display:flex;justify-content:space-between;color:#a0a9ad;font-size:9px;margin:9px 1px 0}.browser-note{font-size:9px;color:#a1aaaa;line-height:1.6;margin:8px 0 0}.site-footer{display:flex;justify-content:space-between;padding:20px 0;color:#9aa29f;font-size:10px;gap:16px}.site-footer a{display:flex;gap:5px;align-items:center}.error{padding:9px 11px;background:#fff4f0;color:#ae5b40;font-size:12px;border-radius:7px;margin:0 0 10px;line-height:1.5}.connection-note{color:#9b7846;font-size:10px;margin:0 0 10px}.muted{color:var(--muted);font-size:12px}.center{text-align:center}.older{display:block;margin:0 auto 14px;background:none;border:0;color:#64847c;font-size:11px}.spinner{width:16px;height:16px;border:2px solid #ffffff55;border-top-color:white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.staff-shell{height:100dvh;display:flex;flex-direction:column;background:white}.staff-header{height:79px;flex:none;display:flex;align-items:center;padding:0 30px;border-bottom:1px solid var(--border);gap:28px}.staff-title{font-size:13px;color:#87918e;border-left:1px solid #e5e8e5;padding-left:25px}.staff-actions{margin-left:auto;display:flex;align-items:center;gap:20px;color:#7b8d89}.staff-actions button{display:flex;align-items:center;gap:8px;border:1px solid #dce5df;background:#f8faf7;padding:9px 13px;font-size:12px;border-radius:8px}.staff-actions a{padding:6px}.staff-main{flex:1;min-height:0;display:flex}.inbox{width:350px;flex:none;border-right:1px solid var(--border);display:flex;flex-direction:column;background:#fcfdfb}.inbox-heading{display:flex;align-items:center;gap:12px;padding:27px 25px 20px}.inbox-heading h1{font-size:20px;margin:0;font-weight:600}.inbox-heading span{font-size:11px;color:#7e9387;background:#eaf0ea;padding:3px 8px;border-radius:30px}.inbox-tabs{display:flex;gap:20px;padding:0 25px;border-bottom:1px solid var(--border)}.inbox-tabs button{border:0;background:none;color:#8a9892;padding:0 0 13px;font-size:12px;border-bottom:2px solid transparent}.inbox-tabs button.active{color:#244a43;border-color:#41695d}.inbox-tabs b{font-weight:500;margin-left:5px;font-size:10px;color:#b58b55}.search{display:flex;align-items:center;gap:9px;margin:17px 18px;padding:11px 12px;border:1px solid #e1e7e2;border-radius:8px;color:#9aa69e;background:white}.search input{width:100%;min-width:0;outline:0;border:0;font-size:12px;background:none}.conversation-list{flex:1;overflow-y:auto;min-height:0}.conversation{display:flex;align-items:center;gap:11px;padding:20px 20px;width:100%;text-align:left;border:0;border-bottom:1px solid #edf0ea;background:none;position:relative}.conversation:hover{background:#f4f7f1}.conversation.selected{background:#eaf1ea;border-left:3px solid #527668;padding-left:17px}.mini-avatar{display:grid;place-items:center;width:39px;height:39px;flex:none;border-radius:12px;background:#e8eddf;color:#647b5d;font-size:16px}.conversation-content{flex:1;min-width:0;display:block}.conversation-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:7px}.conversation-top strong{font-size:12px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.conversation-top time{font-size:9px;color:#a1aaa3;white-space:nowrap}.preview{font-size:11px;color:#8a978f;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.unread-dot{width:6px;height:6px;background:#bc9559;border-radius:50%;flex:none}.inbox-foot{font-size:10px;color:#9da7a0;text-align:center;border-top:1px solid var(--border);padding:17px}.staff-chat{flex:1;min-width:0;display:flex;flex-direction:column}.staff-chat .chat-room{flex:1;min-height:0}.staff-chat .message-list{padding:30px 6%}.staff-chat .composer{padding:20px 6%}.empty-state{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#86958e;padding:30px}.empty-icon{width:94px;height:94px;display:grid;place-items:center;background:#f0f3ec;color:#7f9886;border-radius:26px;margin-bottom:25px}.empty-state h2{font-size:23px;color:#4a6356;font-weight:500;margin:0 0 15px}.empty-state p{font-size:13px;line-height:1.9;margin:0 0 25px}.primary-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;background:var(--navy);color:white;border-radius:9px;padding:13px 20px;font-size:13px}.inbox-empty{text-align:center;padding:60px 24px;color:#9aaa9d}.inbox-empty svg{margin:0 auto 13px}.inbox-empty p{font-size:13px}.inbox-empty small{font-size:11px;line-height:1.8}.back-list{display:none}.auth-page{min-height:100svh;display:grid;place-items:center;padding:25px;background:radial-gradient(ellipse at 20% 20%,#e5ece3,transparent 65%),#f6f6f0}.auth-card{max-width:480px;padding:50px 40px;border:1px solid #dfe5da;border-radius:22px;background:#ffffffeb;box-shadow:0 20px 70px #203b1e08}.auth-card h1{font-size:27px;line-height:1.5;margin:23px 0 18px}.auth-card p{font-size:13px;color:#7a8a80;line-height:1.9;margin-bottom:28px}.text-link{display:block;margin-top:20px;font-size:12px;color:#87968b}
@media(min-width:1550px){.guest-layout{gap:110px}.site{padding:0 90px}}@media(max-width:1000px){.site{padding:0 4vw}.guest-layout{gap:4vw;grid-template-columns:.8fr 1.2fr}.intro h1{font-size:42px}.chat-head{padding:18px}.private-badge{font-size:0}.private-badge svg{width:16px;height:16px}.inbox{width:310px}}
@media(max-width:720px){.site{padding:0}.site-header{height:70px;padding:0 20px;border-bottom:0}.brand{font-size:17px}.brand-mark{width:36px;height:36px;border-radius:10px}.header-note{font-size:10px;letter-spacing:0}.guest-layout{display:flex;flex-direction:column;padding:0;gap:0;min-height:0}.intro{display:block;width:100%;padding:14px 23px 21px}.eyebrow{font-size:9px}.intro h1{font-size:32px;line-height:1.3;margin:14px 0 10px;letter-spacing:-1px}.intro h1 br{display:none}.intro-copy{font-size:12px;line-height:1.8}.desktop{display:none}.topic-label,.topics,.intro-footer{display:none}.chat-card{width:100%;border-radius:22px 22px 0 0;box-shadow:none;border-bottom:0;height:calc(100dvh - 120px);min-height:620px}.chat-head{min-height:80px;padding:17px 21px}.chat-head h2{font-size:15px}.chat-head p{font-size:10px}.private-badge{font-size:10px}.message-list{padding:22px}.composer{padding:15px 20px 18px}.input-wrap textarea,.name-label input{font-size:16px}.name-label{font-size:11px}.name-label input{max-width:210px;font-size:14px}.consent{font-size:10px}.site-footer{padding:20px;font-size:9px;border-top:1px solid #edf0ed;background:#fff}.staff-header{height:68px;padding:0 16px;gap:12px}.staff-title{display:none}.staff-actions{gap:9px}.staff-actions button{padding:8px;font-size:11px}.staff-actions button span{display:none}.staff-main{display:block;position:relative}.inbox{width:100%;height:100%;border-right:0}.staff-chat{display:none}.has-selection .inbox{display:none}.has-selection .staff-chat{display:flex;width:100%;height:100%}.back-list{display:flex;align-items:center;gap:5px;background:#f7faf6;border:0;border-bottom:1px solid #e6ece4;padding:12px 18px;font-size:12px;color:#5e7966}.staff-chat .chat-head{padding:15px 20px;min-height:73px}.staff-chat .message-list{padding:20px}.staff-chat .composer{padding:15px 18px}.auth-card{padding:36px 26px}.auth-card h1{font-size:24px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.spinner{animation:none}}
.compact-site{height:100dvh;max-width:980px;display:flex;flex-direction:column;padding:0 24px;overflow:hidden}.compact-site .site-header{height:68px;flex:none}.manage-link{font-size:12px;color:#7c8993}.compact-site .guest-layout{display:flex;flex:1;min-height:0;padding:18px 0;gap:0}.compact-site .chat-card{width:100%;height:100%;min-height:0;box-shadow:none}.compact-site .chat-head{min-height:66px;padding:13px 20px}.chat-head h2{margin:0}.compact-welcome{font-size:14px;color:#71818b;text-align:center;padding:22px 0}.attachment-tools{display:flex;align-items:center;gap:18px;margin:0 0 10px}.attachment-tools button{display:flex;align-items:center;gap:6px;border:0;padding:5px 0;background:transparent;color:#527168;font-size:13px}.attachment-tools>span{margin-left:auto;font-size:10px;color:#97a19f}.file-picker{display:none}.selected-file{display:flex;align-items:center;gap:8px;border:1px solid #dce5df;border-radius:9px;padding:9px 12px;margin-bottom:10px;background:#f7faf6;font-size:12px}.selected-file>span{flex:1;min-width:0;overflow-wrap:anywhere}.selected-file small{display:block;color:#8a9892;margin-top:3px}.selected-file button{border:0;background:none;color:#75897c;padding:4px}.file-bubble{min-width:160px;max-width:290px;white-space:normal}.file-bubble img{display:block;max-width:100%;max-height:280px;object-fit:contain;border-radius:8px;margin-bottom:9px}.file-download{display:flex;align-items:center;gap:12px;padding:5px 0}.file-download span{flex:1;min-width:0}.file-download strong{font-size:12px;font-weight:500;overflow-wrap:anywhere}.file-download small{display:block;opacity:.7;font-size:10px;margin-top:4px}.file-download svg{flex:none}.chat-help{font-size:10px;color:#98a39e;margin-top:8px}.chat-help summary{cursor:pointer;width:max-content}.chat-help p{line-height:1.6;margin:7px 0 0;max-width:440px}.upload-status{font-size:11px;color:#527168;margin:8px 0 0}.bubble{font-size:14px}.message-meta{font-size:11px}
@media(max-width:720px){.compact-site{padding:0}.compact-site .site-header{height:58px;padding:0 18px;border-bottom:1px solid #e5e9eb}.compact-site .guest-layout{padding:0}.compact-site .chat-card{border:0;border-radius:0;min-height:0}.compact-site .chat-head{min-height:61px;padding:11px 18px}.compact-site .message-list{padding:16px 18px}.compact-site .composer{padding:12px 16px max(10px,env(safe-area-inset-bottom))}.compact-site .bubble{font-size:15px}.compact-site .input-wrap textarea{font-size:16px}.file-bubble{max-width:240px}.attachment-tools{gap:20px}.attachment-tools button{font-size:14px;padding:6px 0}.chat-help{font-size:10px}.compact-site .brand-mark{width:32px;height:32px}.compact-site .brand-sub{font-size:9px}}
.compose-row{display:flex;align-items:flex-end;gap:10px}.compose-row .input-wrap{flex:1;min-width:0;padding:11px 13px}.compose-row .input-wrap textarea{width:100%;min-height:48px}.compose-row .send{width:80px;min-width:80px;height:48px;min-height:48px;display:flex;align-items:center;justify-content:center;gap:5px;border-radius:12px;background:#1e6460;font-size:15px;font-weight:600;white-space:nowrap;touch-action:manipulation;box-shadow:0 2px 5px #174e4c15}.compose-row .send:hover:not(:disabled){background:#174f4c}.compose-row .send:disabled{opacity:1;background:#e5ece9;color:#81938c;box-shadow:none}.compose-row .send[aria-busy=true]{background:#1e6460;color:white}.compose-row .send .spinner{width:13px;height:13px}@media(max-width:360px){.compose-row{gap:8px}.compose-row .send{width:72px;min-width:72px}}
.image-open{display:block;border:0;padding:0;background:none;color:inherit;cursor:zoom-in;max-width:100%;text-align:left}.image-open span{display:block;font-size:11px;opacity:.75;padding:2px 0}.image-viewer{position:fixed;inset:0;width:100vw;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;background:#10191ef5;color:white;overflow:hidden}.image-viewer::backdrop{background:#10191eee}.image-viewer-bar{height:64px;padding:8px max(16px,env(safe-area-inset-right)) 8px max(16px,env(safe-area-inset-left));display:flex;align-items:center;gap:8px;border-bottom:1px solid #ffffff25}.image-viewer-bar>span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.image-viewer-bar button,.image-viewer-bar a{display:grid;place-items:center;flex:none;width:44px;height:44px;border:0;border-radius:8px;background:#ffffff15;color:white}.image-viewer-body{height:calc(100% - 64px);overflow:auto;display:flex;align-items:center;justify-content:center;padding:16px;overscroll-behavior:contain}.image-viewer-body img{max-width:100%;max-height:100%;object-fit:contain;margin:0}.image-viewer-body.zoomed{display:block}.image-viewer-body.zoomed img{max-width:none;max-height:none;min-width:100%;width:auto;height:auto;object-fit:initial;margin:auto}.pending-image{width:56px;height:56px;object-fit:contain;border-radius:6px;background:#e8eeea;flex:none}.keyboard-hint{font-size:10px;color:#8b9993;margin:7px 0 0}.notification-settings{padding:0 18px 12px}.notification-settings>button{display:flex;align-items:center;gap:7px;padding:9px 12px;min-height:40px;border:1px solid #dce5df;border-radius:8px;background:#f3f8f2;color:#42685c;font-size:12px}.notification-settings p{font-size:11px;line-height:1.6;color:#7b8c83;margin:8px 0 0}.new-message-toast{position:fixed;right:24px;bottom:24px;z-index:100;display:flex;align-items:center;gap:13px;background:#173d3c;color:white;padding:18px;border-radius:14px;box-shadow:0 8px 32px #142b3b38;max-width:calc(100vw - 32px)}.new-message-toast strong{display:block;font-size:14px;margin-bottom:8px}.new-message-toast button{border:0;color:inherit;background:none;font-size:12px;padding:4px 0;text-decoration:underline}.new-message-toast .toast-close{margin-left:12px;width:32px;height:32px;display:grid;place-items:center;align-self:flex-start;text-decoration:none}@media(pointer:coarse){.keyboard-hint{display:none}}@media(max-width:720px){.new-message-toast{right:16px;bottom:max(16px,env(safe-area-inset-bottom))}.image-viewer-bar{padding-top:max(8px,env(safe-area-inset-top));height:calc(64px + env(safe-area-inset-top))}.image-viewer-body{height:calc(100% - 64px - env(safe-area-inset-top));padding-bottom:max(16px,env(safe-area-inset-bottom))}}
.message-receipt{display:flex;align-items:center;justify-content:flex-end;align-self:flex-end;color:#91a39b;margin-top:3px;height:18px}.message-receipt.is-read{color:#3baf69}.message-receipt svg{stroke-width:2.4}
.conversation-meta{flex:none;display:flex;flex-direction:column;align-items:flex-end;gap:7px;min-width:82px}.conversation-meta time{font-size:10px;color:#94a09a;white-space:nowrap}.list-receipt{display:inline-flex;align-items:center;gap:3px;white-space:nowrap;font-size:11px;line-height:18px;font-weight:550;padding:1px 5px;border-radius:5px}.list-receipt svg{flex:none;stroke-width:2.3}.list-receipt.is-read{color:#24804b;background:#e9f6ed}.list-receipt.is-unread{color:#86642e;background:#f8f2e6}.list-receipt.is-pending{color:#92622c;background:#fff1dc}.pending-indicator{width:5px;height:5px;border-radius:50%;background:currentColor;margin-right:2px}.conversation .conversation-content{min-width:0}.conversation .conversation-top strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.login-label{display:block;font-size:14px;margin-bottom:20px}.login-label input{display:block;width:100%;padding:12px;border:1px solid #ccd5cf;border-radius:8px;margin-top:10px;background:white}.staff-actions button.logout{padding:6px;border:0;background:none}