:root{--nav:#101827;--nav-soft:#182235;--ink:#172033;--muted:#788397;--line:#e5eaf1;--bg:#f3f6fa;--card:#fff;--blue:#3975f6;--blue-soft:#edf3ff;--green:#18b67a;--shadow:0 10px 35px rgba(25,40,70,.08)}
*{box-sizing:border-box}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-size:14px}button,input,textarea{font:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:226px minmax(0,1fr)}
.login-screen{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 68% 18%,rgba(73,124,245,.16),transparent 28%),linear-gradient(135deg,#0d1421,#131f33)}.login-card{width:min(390px,100%);background:#fff;border-radius:18px;padding:36px;box-shadow:0 25px 80px rgba(0,0,0,.28)}.login-card .brand-mark{margin-bottom:20px}.login-card>p{font-size:10px;letter-spacing:1.5px;color:#7e8ba0;margin:0 0 5px}.login-card h1{font-size:24px;margin:0 0 28px}.login-card label{display:block;color:#687386;font-size:12px;margin:14px 0}.login-card input{display:block;width:100%;height:44px;border:1px solid #dfe5ed;border-radius:9px;margin-top:7px;padding:0 12px;outline:0}.login-card input:focus{border-color:#4c80ee;box-shadow:0 0 0 3px rgba(76,128,238,.12)}.login-card>button{width:100%;height:45px;border:0;border-radius:9px;background:linear-gradient(135deg,#477ff2,#3468da);color:white;margin-top:10px;font-weight:600}.login-card>span{display:block;min-height:18px;margin-top:12px;color:#d65260;font-size:11px;text-align:center}
.sidebar{background:linear-gradient(180deg,#101827 0%,#0d1421 100%);color:#cdd5e4;padding:22px 14px 16px;display:flex;flex-direction:column;min-height:100vh}.brand{display:flex;align-items:center;gap:11px;padding:0 8px 26px}.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#4e8cff,#6b5cff);display:grid;place-items:center;color:white;font-weight:800;font-size:19px;box-shadow:0 8px 20px rgba(70,110,255,.3)}.brand strong,.brand span{display:block}.brand strong{color:white;font-size:15px}.brand span{color:#6f7c91;font-size:10px;margin-top:3px;letter-spacing:.5px}.sidebar nav{display:grid;gap:5px}.nav-item{border:0;background:transparent;color:#9eacc0;border-radius:9px;padding:11px 13px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;text-align:left}.nav-item:hover{background:#151f30;color:#eaf0f8}.nav-item.active{color:white;background:linear-gradient(90deg,#20375d,#1b2b47);box-shadow:inset 3px 0 #4d86ff}.nav-badge{min-width:22px;padding:2px 6px;border-radius:10px;background:#ef5967;color:#fff;text-align:center;font-size:11px}.online-dot{width:8px;height:8px;border-radius:50%;background:#2bce8e;box-shadow:0 0 0 4px rgba(43,206,142,.1)}.connection-card{margin-top:auto;display:flex;gap:10px;align-items:center;background:#151f30;border:1px solid #223149;border-radius:11px;padding:12px}.connection-card strong,.connection-card small{display:block}.connection-card strong{color:#eaf0f8;font-size:12px}.connection-card small{color:#708097;font-size:10px;margin-top:3px}.pulse{width:9px;height:9px;border-radius:50%;background:#20c888;box-shadow:0 0 0 5px rgba(32,200,136,.12)}.operator{display:flex;align-items:center;gap:9px;margin-top:14px;padding:11px 6px 0;border-top:1px solid #1d293c}.operator .avatar{width:32px;height:32px}.operator strong,.operator span{display:block}.operator strong{font-size:11px;color:#e9eef6}.operator span{font-size:10px;color:#6e7a8d;margin-top:2px}.operator button{margin-left:auto;border:0;background:transparent;color:#6e7a8d}
.workspace{min-width:0;height:100vh;overflow:hidden}.topbar{height:88px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px}.topbar p{color:#929bad;font-size:11px;margin:0 0 5px}.topbar h1{font-size:20px;margin:0}.top-actions{display:flex;gap:12px;align-items:center}.service-state{padding:7px 11px;background:#f1fbf7;color:#238a66;border-radius:18px;font-size:11px}.service-state i,.contact-title i,.profile-head i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#22bd82;margin-right:6px}.icon-button{position:relative;width:35px;height:35px;border:1px solid var(--line);background:#fff;border-radius:9px}.icon-button em{position:absolute;top:-5px;right:-5px;background:#ef5967;color:#fff;font-style:normal;font-size:9px;width:16px;height:16px;border-radius:50%;display:grid;place-items:center}
.chat-layout{height:calc(100vh - 88px);display:grid;grid-template-columns:300px minmax(430px,1fr) 260px;padding:14px;gap:1px}.conversation-panel,.message-panel,.profile-panel{background:var(--card);border:1px solid var(--line)}.conversation-panel{border-radius:12px 0 0 12px;overflow:hidden}.profile-panel{border-radius:0 12px 12px 0;overflow:auto}.panel-heading{display:flex;justify-content:space-between;align-items:center;padding:18px 16px 12px}.panel-heading h2{font-size:15px;margin:0 0 3px}.panel-heading span{font-size:10px;color:#ef5967}.square-button{width:30px;height:30px;border:1px solid var(--line);background:#fff;border-radius:8px;color:#657185}.search-box{margin:0 14px 10px;height:36px;background:#f5f7fa;border:1px solid #edf0f4;border-radius:8px;display:flex;align-items:center;padding:0 10px;color:#9aa4b4}.search-box input{border:0;background:transparent;outline:0;width:100%;padding-left:7px;color:var(--ink);font-size:12px}.filter-row{display:flex;gap:5px;padding:0 14px 10px;border-bottom:1px solid var(--line)}.filter-row button{border:0;background:transparent;color:#7b8698;font-size:10px;padding:6px 8px;border-radius:6px}.filter-row button.selected{background:var(--blue-soft);color:var(--blue)}.filter-row b{font-weight:600}.conversation-list{overflow:auto;height:calc(100% - 126px)}.conversation{position:relative;width:100%;border:0;border-bottom:1px solid #f0f2f5;background:white;padding:13px 12px;display:flex;gap:10px;text-align:left;cursor:pointer}.conversation:hover,.conversation.active{background:#f5f8ff}.conversation.active:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--blue)}.avatar{width:36px;height:36px;flex:0 0 auto;border-radius:11px;display:grid;place-items:center;font-weight:700;font-size:11px}.avatar.green{background:#e8f8f2;color:#16a56f}.avatar.blue{background:#eaf1ff;color:#3975f6}.avatar.violet{background:#f1ecff;color:#7757db}.avatar.amber{background:#fff3df;color:#c88720}.conversation-body{min-width:0;flex:1}.conversation-body>div{display:flex;justify-content:space-between;gap:8px}.conversation-body strong{font-size:12px}.conversation-body time{color:#a0a9b8;font-size:9px}.conversation-body p{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:5px 0;color:#7f899a;font-size:10px}.conversation-body small{font-size:9px;color:#e45968}.conversation-body small i{display:inline-block;width:5px;height:5px;border-radius:50%;background:#e45968;margin-right:4px}.conversation-body small.auto{color:#4779d6}.conversation-body small.auto i{background:#4779d6}.conversation-body small.done{color:#22a476}.unread{align-self:center;background:#4d80ed;color:#fff;border-radius:9px;min-width:18px;text-align:center;padding:2px 5px;font-size:9px}
.message-panel{display:grid;grid-template-rows:68px minmax(0,1fr) 185px}.message-header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 16px}.contact-title{display:flex;align-items:center;gap:10px}.contact-title h2{font-size:14px;margin:0 0 4px}.contact-title p{font-size:9px;color:#8691a2;margin:0}.mode-control{display:flex;align-items:center;gap:8px}.mode-control>span{font-size:9px;color:#8b95a4}.mode-control button{height:32px;border:1px solid var(--line);background:#fff;border-radius:8px}.mode-control #modeButton{display:flex;align-items:center;gap:6px;padding:0 10px;color:#d75563;font-size:10px}.mode-control #modeButton i{width:6px;height:6px;background:#e35b68;border-radius:50%}.mode-control #modeButton em{font-style:normal;color:#929baa;margin-left:4px}.more-button{width:32px;color:#8f98a8}.messages{overflow:auto;background:#f7f9fc;padding:18px 20px}.day-divider{text-align:center;margin-bottom:18px}.day-divider span{background:#e9edf3;color:#8d97a7;font-size:9px;padding:4px 9px;border-radius:10px}.message{display:flex;gap:9px;margin-bottom:18px;align-items:flex-start}.message>div:nth-child(2):not(.avatar),.message.outgoing>div:first-child{max-width:70%}.message p{margin:0;padding:10px 13px;background:white;border:1px solid #e8ecf2;border-radius:4px 12px 12px 12px;box-shadow:0 3px 12px rgba(30,45,70,.04);font-size:12px;line-height:1.6}.message time{display:block;color:#a0a8b5;font-size:9px;margin-top:4px}.message.outgoing{justify-content:flex-end}.message.outgoing p{background:#e9f0ff;border-color:#dce7ff;border-radius:12px 4px 12px 12px}.message.outgoing time{text-align:right}.avatar.agent{background:#3d72e9;color:#fff}.takeover-note{text-align:center;color:#b06b31;font-size:9px;margin-top:7px}.takeover-note span{display:inline-grid;place-items:center;width:17px;height:17px;border-radius:50%;background:#fff0dd;margin-right:5px}.composer{border-top:1px solid var(--line);background:#fff;padding:10px 14px}.quick-tools{display:flex;gap:7px}.quick-tools button{border:1px solid var(--line);background:#fff;color:#667285;border-radius:7px;padding:6px 9px;font-size:9px}.quick-tools .ai-button{border-color:#cfdcff;color:#3f70db;background:#f6f8ff}.composer textarea{width:100%;height:78px;border:0;resize:none;outline:0;padding:12px 2px;color:var(--ink);font-size:12px}.send-row{display:flex;align-items:center;justify-content:space-between}.send-row>span{font-size:9px;color:#a0a9b7}.clear-button,.send-button{border:0;border-radius:7px;height:31px}.clear-button{background:transparent;color:#7d8797;margin-right:7px}.send-button{background:linear-gradient(135deg,#467ff4,#356be0);color:#fff;padding:0 13px;box-shadow:0 6px 14px rgba(57,117,246,.2)}.send-button kbd{margin-left:7px;font-size:8px;background:rgba(255,255,255,.15);padding:2px 4px;border-radius:3px}
.profile-head{text-align:center;padding:22px 14px 17px;border-bottom:1px solid var(--line)}.profile-head .large{width:52px;height:52px;margin:0 auto 8px;font-size:14px}.profile-head h3{margin:0;font-size:13px}.profile-head p{margin:5px 0;color:#919aaa;font-size:9px}.profile-head span{display:inline-block;margin-top:3px;color:#29906c;background:#effaf6;border-radius:10px;padding:4px 8px;font-size:9px}.profile-section{padding:16px;border-bottom:1px solid var(--line)}.profile-section h4{font-size:11px;margin:0 0 12px}.profile-section dl{margin:0}.profile-section dl div{display:flex;justify-content:space-between;margin:9px 0;font-size:9px}.profile-section dt{color:#9099a8}.profile-section dd{margin:0;color:#485365}.tags{display:flex;gap:6px;flex-wrap:wrap}.tags span,.tags button{border:0;border-radius:5px;padding:5px 7px;font-size:9px}.tags span{background:#eaf3ff;color:#3e70d7}.tags button{background:#f4f6f9;color:#7d8797}.notes textarea{width:100%;height:60px;border:1px solid var(--line);border-radius:7px;padding:8px;resize:none;font-size:9px}.notes button{margin-top:7px;float:right;border:0;background:#eef3ff;color:#3f70db;border-radius:6px;padding:5px 9px;font-size:9px}.toast{position:fixed;right:22px;bottom:22px;transform:translateY(80px);opacity:0;background:#172033;color:#fff;padding:10px 14px;border-radius:8px;font-size:11px;box-shadow:var(--shadow);transition:.25s}.toast.show{transform:translateY(0);opacity:1}
.empty-conversations{padding:50px 24px;text-align:center;color:#939dab}.empty-conversations b,.empty-conversations span{display:block}.empty-conversations b{color:#596579;margin-bottom:7px}.empty-conversations span{font-size:10px;line-height:1.7}.modal-layer{position:fixed;z-index:20;inset:0;background:rgba(10,18,30,.62);backdrop-filter:blur(5px);display:grid;place-items:center;padding:22px}.connect-modal,.dashboard-modal{position:relative;width:min(470px,100%);background:#fff;border-radius:18px;padding:30px;box-shadow:0 30px 90px rgba(0,0,0,.3);text-align:center}.dashboard-modal{width:min(680px,100%);text-align:left}.modal-close{position:absolute;right:16px;top:14px;border:0;background:#f1f4f8;color:#708095;width:31px;height:31px;border-radius:50%;font-size:20px}.eyebrow{font-size:9px;letter-spacing:1.7px;color:#4c78dc;margin:0 0 7px}.connect-modal h2,.dashboard-modal h2{font-size:21px;margin:0 0 10px}.connect-copy{max-width:370px;margin:0 auto 18px;color:#7f8998;font-size:11px;line-height:1.7}.qr-stage{width:238px;height:238px;margin:0 auto 15px;border:1px solid #e2e7ee;border-radius:14px;padding:12px;display:grid;place-items:center;background:#fbfcfe}.qr-stage img{display:block;width:100%;height:100%}.qr-placeholder{color:#9aa4b2;font-size:11px}.connect-status{display:flex;justify-content:center;align-items:center;gap:6px;color:#7b8697;font-size:10px;margin:12px 0}.connect-status i{width:7px;height:7px;border-radius:50%;background:#b8c0cc}.connect-status.online{color:#198660}.connect-status.online i{background:#1ec083}.primary-wide{display:block;width:100%;height:42px;border:0;border-radius:9px;background:#3975f6;color:white;font-weight:600}.connect-modal>a{display:block;margin-top:12px;font-size:10px;color:#3975f6}.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.metric-grid article{background:#f5f7fb;border:1px solid #eaedf3;border-radius:12px;padding:17px}.metric-grid span,.metric-grid strong{display:block}.metric-grid span{color:#7b8798;font-size:10px}.metric-grid strong{font-size:26px;margin-top:7px}
@media(max-width:1180px){.chat-layout{grid-template-columns:275px minmax(430px,1fr)}.profile-panel{display:none}.message-panel{border-radius:0 12px 12px 0}}@media(max-width:860px){.app-shell{grid-template-columns:72px 1fr}.sidebar{padding:18px 10px}.brand>div:last-child,.nav-item span,.connection-card,.operator>div,.operator button{display:none}.brand{padding:0 7px 25px}.nav-item{justify-content:center;height:43px}.nav-item b{display:block}.operator{justify-content:center}.chat-layout{grid-template-columns:245px minmax(390px,1fr)}}

/* Readability and state safety */
[hidden]{display:none!important}
body{font-size:16px}
.app-shell{grid-template-columns:250px minmax(0,1fr)}
.login-card{width:min(430px,100%);padding:40px}.login-card>p{font-size:12px}.login-card h1{font-size:28px}.login-card label{font-size:14px}.login-card input{height:48px;font-size:16px}.login-card>button{height:48px;font-size:15px}.login-card>span{font-size:13px}
.brand strong{font-size:17px}.brand span{font-size:12px}.nav-item{font-size:15px;padding:13px 14px}.nav-badge{font-size:12px}.connection-card strong{font-size:14px}.connection-card small{font-size:12px}.operator strong{font-size:14px}.operator span{font-size:12px}.operator button{font-size:13px}
.topbar{height:92px;padding:0 28px}.topbar p{font-size:13px}.topbar h1{font-size:24px}.service-state{font-size:13px}.icon-button{font-size:16px}.icon-button em{font-size:10px}
.chat-layout{height:calc(100vh - 92px);grid-template-columns:340px minmax(520px,1fr) 300px;padding:16px}.panel-heading{padding:20px 18px 14px}.panel-heading h2{font-size:18px}.panel-heading span{font-size:13px}.square-button{font-size:17px}.search-box{height:42px}.search-box input{font-size:14px}.filter-row button{font-size:13px;padding:7px 9px}.conversation-list{height:calc(100% - 144px)}.conversation{padding:15px 14px}.avatar{width:42px;height:42px;font-size:13px}.conversation-body strong{font-size:14px}.conversation-body time{font-size:12px}.conversation-body p{font-size:13px;margin:6px 0}.conversation-body small{font-size:12px}.unread{font-size:11px;min-width:21px}
.message-panel{grid-template-rows:76px minmax(0,1fr) 215px}.message-header{padding:0 20px}.contact-title h2{font-size:17px}.contact-title p{font-size:12px}.mode-control>span{font-size:12px}.mode-control #modeButton{font-size:13px;height:36px}.more-button{font-size:15px}.messages{padding:22px 24px}.day-divider span{font-size:12px}.message p{font-size:15px;line-height:1.65;padding:11px 14px}.message time{font-size:12px}.takeover-note{font-size:12px}.quick-tools button{font-size:13px;padding:7px 11px}.composer textarea{font-size:15px;height:94px}.send-row>span{font-size:12px}.clear-button,.send-button{height:35px;font-size:13px}.send-button kbd{font-size:10px}
.profile-head h3{font-size:16px}.profile-head p{font-size:12px}.profile-head span{font-size:12px}.profile-section h4{font-size:14px}.profile-section dl div{font-size:12px}.tags span,.tags button{font-size:12px}.notes textarea{font-size:13px;height:72px}.notes button{font-size:12px}.empty-conversations span{font-size:13px}.toast{font-size:14px}
.eyebrow{font-size:11px}.connect-modal h2,.dashboard-modal h2{font-size:24px}.connect-copy{font-size:14px}.qr-placeholder{font-size:13px}.connect-status{font-size:13px}.primary-wide{height:46px;font-size:15px}.connect-modal>a{font-size:13px}.metric-grid span{font-size:13px}.metric-grid strong{font-size:30px}
@media(max-width:1180px){.app-shell{grid-template-columns:230px 1fr}.chat-layout{grid-template-columns:315px minmax(470px,1fr)}.profile-panel{display:none}}
@media(max-width:860px){.app-shell{grid-template-columns:78px 1fr}.chat-layout{grid-template-columns:280px minmax(450px,1fr)}.brand>div:last-child,.nav-item span,.connection-card,.operator>div,.operator button{display:none}}
.mode-control .more-button{width:auto;padding:0 10px;font-size:12px}.quick-reply-modal{width:min(560px,100%)}.quick-reply-list{display:grid;gap:10px;margin-top:20px}.quick-reply-list button{border:1px solid var(--line);background:#f7f9fc;border-radius:10px;padding:14px 16px;text-align:left;color:#455166;font-size:14px;cursor:pointer}.quick-reply-list button:hover{border-color:#b8ccfa;background:#f0f5ff;color:#3468da}

.manual-only{display:flex!important;align-items:center;gap:7px;border:1px solid #ccebdd;background:#f2fbf7;color:#18865d!important;border-radius:9px;padding:8px 11px;font-size:13px!important;font-weight:600}.manual-only i{width:8px;height:8px;border-radius:50%;background:#24b87a}.message p:has(.message-image){display:flex;flex-direction:column;gap:8px}.message-image{display:block;max-width:min(360px,42vw);max-height:360px;object-fit:contain;border-radius:10px;cursor:zoom-in}.wechat-emoji{display:inline-block;font-family:"Segoe UI Emoji","Apple Color Emoji",sans-serif;font-size:1.55em;line-height:1;vertical-align:-.16em;margin:0 .04em}.media-preview{height:46px;margin:6px 0 0;display:flex;align-items:center;gap:10px;padding:5px 8px;border:1px solid #dbe5f7;border-radius:9px;background:#f7faff}.media-preview[hidden]{display:none}.media-preview img{width:36px;height:36px;object-fit:cover;border-radius:6px}.media-preview span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#56657b;font-size:12px}.media-preview button{border:0;background:transparent;color:#d75563;font-size:12px}.composer:has(.media-preview:not([hidden])) textarea{height:48px}
.broadcast-modal{width:min(720px,96vw);max-height:92vh;overflow:auto}.broadcast-modal>label{display:grid;gap:7px;margin-top:15px;color:#526074;font-size:13px;font-weight:600}.broadcast-modal input,.broadcast-modal select,.broadcast-modal textarea{width:100%;border:1px solid #dfe5ee;border-radius:9px;background:#fff;padding:11px 12px;font:inherit;color:#202b3c;outline:0}.broadcast-modal textarea{height:110px;resize:vertical}.broadcast-modal input:focus,.broadcast-modal select:focus,.broadcast-modal textarea:focus{border-color:#7ba1f5;box-shadow:0 0 0 3px rgba(57,117,246,.1)}.broadcast-tip{margin:4px 0 0;color:#758196;font-size:13px}.broadcast-tip strong{color:#356be0;font-size:18px}.broadcast-image-row{display:flex;align-items:center;gap:10px;margin-top:14px}.broadcast-image-row button,.broadcast-actions>button:first-child{border:1px solid #dbe3ef;background:#f7f9fc;color:#4f5e73;border-radius:8px;padding:9px 12px}.broadcast-image-row span{flex:1;color:#7a8798;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.broadcast-image-row #broadcastImageRemove{color:#cf4e5c;background:#fff5f6;border-color:#f2d5d9}.broadcast-preview{margin-top:10px;padding:10px;background:#f5f7fb;border-radius:10px;text-align:center}.broadcast-preview[hidden]{display:none}.broadcast-preview img{max-width:100%;max-height:220px;border-radius:8px}.broadcast-actions{display:grid;grid-template-columns:auto 1fr;gap:10px;margin-top:18px}.broadcast-actions .primary-wide{height:42px}.broadcast-progress{margin-top:16px;padding:12px;background:#f6f8fb;border-radius:10px}.broadcast-progress[hidden]{display:none}.broadcast-progress>div{height:8px;background:#e3e8f1;border-radius:10px;overflow:hidden}.broadcast-progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,#437bf0,#30b879);transition:width .25s}.broadcast-progress p{margin:8px 0 0;color:#59677b;font-size:13px}
body{overflow:hidden}.chat-layout{min-height:0;overflow:hidden}.conversation-panel,.message-panel,.profile-panel{min-height:0;height:100%}.message-panel{overflow:hidden}.messages{min-height:0;overscroll-behavior:contain}.composer{min-height:0;overflow:hidden;position:relative;z-index:2}
@media(max-height:700px){.topbar{height:70px}.chat-layout{height:calc(100vh - 70px);padding:10px}.message-panel{grid-template-rows:62px minmax(0,1fr) 158px}.message-header{padding:0 14px}.messages{padding:12px 16px}.message{margin-bottom:10px}.message p{padding:8px 11px;line-height:1.45}.composer{padding:7px 12px}.quick-tools button{padding:5px 8px}.composer textarea{height:58px;padding:8px 2px}.clear-button,.send-button{height:30px}.profile-head{padding:12px}.profile-section{padding:11px 14px}}