:root{--bg:#f4f6fa;--surface:#fff;--ink:#142238;--muted:#778399;--line:#e5eaf1;--blue:#2964eb;--blue-soft:#edf3ff;--nav:#14243d;--green:#169b73;--red:#dc4c55;--shadow:0 4px 20px #13243b05;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;font-size:14px;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer;transition:background .15s,box-shadow .15s}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #2964eb40;outline-offset:2px}button{border:1px solid var(--line);border-radius:7px;background:#fff;padding:9px 14px;color:var(--ink);line-height:1.35}button:hover{background:#f7f9fc}input,textarea,select{width:100%;border:1px solid #dce3ed;border-radius:7px;background:white;color:var(--ink);padding:10px 11px}textarea{resize:vertical;min-height:78px;line-height:1.65}label{display:grid;gap:7px;font-size:13px;font-weight:500}small,.muted{color:var(--muted)}small{font-size:12px}h1,h2,h3,h4,p{margin-top:0}h2{font-size:19px;letter-spacing:-.3px}h3{font-size:15px;margin:0}p{line-height:1.7}a{color:var(--blue);text-decoration:none}[hidden]{display:none!important}.primary{background:var(--blue);color:white;border-color:var(--blue);box-shadow:0 3px 8px #2964eb1c}.primary:hover{background:#1c52d0}.secondary{background:white}.danger{color:var(--red);border-color:#f2d4d7}.danger.solid{background:var(--red);color:white;border-color:var(--red)}.ghost{border:0;background:transparent}.link-button{border:0;background:transparent;color:var(--blue);padding:5px 7px;font-size:12px}.wide{width:100%;display:flex;align-items:center;justify-content:space-between}.error{color:var(--red);font-size:13px}.login-screen{min-height:100dvh;display:grid;grid-template-columns:1fr 1fr}.login-brand{padding:10vh 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i,.live-dot{display:inline-block;flex:none;width:7px;height:7px;background:#2cb68d;border-radius:50%}.login-panel{display:grid;place-items:center;padding:45px}.login-card{width:360px;max-width:100%}.eyebrow{font-size:10px;letter-spacing:2.3px;color:var(--blue);font-weight:700}.login-card h2{font-size:27px;margin:15px 0 8px}.login-card>p{font-size:13px;margin-bottom:30px}.login-card label{margin-bottom:20px}.login-card input{padding:13px 12px;background:#fbfcfe}.login-card button{padding:13px 17px}.login-card>small{display:block;text-align:center;margin-top:24px}.app-shell{display:grid;grid-template-columns:224px minmax(0,1fr);min-height:100dvh}.sidebar{background:var(--nav);color:#9eafc8;position:sticky;top:0;height:100dvh;padding:30px 15px 20px;display:flex;flex-direction:column;z-index:10}.brand{display:flex;align-items:center;gap:11px;color:white;font-size:15px;font-weight:600;padding:0 6px}.brand small{display:block;font-size:8px;letter-spacing:1.5px;color:#8ea4c1;margin-top:6px}.brand-mark.small{width:34px;height:36px;border-radius:9px;font-size:18px}.nav-caption{text-transform:uppercase;font-size:10px;letter-spacing:1px;color:#637d9f;margin:45px 15px 13px}nav{display:grid;gap:5px}nav button{border:0;background:none;color:#9eafc8;text-align:left;display:flex;align-items:center;gap:13px;padding:13px 14px;font-size:13px;border-radius:7px}nav button>span{font-size:18px;width:20px;line-height:15px;text-align:center}nav button:hover{background:#ffffff08;color:#fff}nav button.active{background:#2d65dc;color:#fff;box-shadow:0 4px 9px #07173218}nav button b{margin-left:auto;background:#ffffff25;border-radius:4px;font-size:10px;padding:2px 5px;min-width:19px;text-align:center}.sidebar-bottom{margin-top:auto;font-size:11px;padding:24px 10px 0}.sidebar-bottom>div{display:flex;align-items:center;gap:8px}.sidebar-bottom small{font-size:10px;line-height:1.8;display:block;margin-top:9px;color:#6b819f}.sidebar-bottom button{padding-left:0;color:#9eafc8;font-size:11px;margin-top:14px}.main-shell{min-width:0;display:flex;flex-direction:column;min-height:100dvh}.topbar{height:99px;display:flex;align-items:center;justify-content:space-between;padding:0 34px;background:white;border-bottom:1px solid var(--line);gap:15px}.heading small{font-size:10px;color:#8b97a9}.heading h1{font-size:23px;margin:7px 0 0;font-weight:650;letter-spacing:-.5px}.header-tools{display:flex;align-items:center;gap:10px}.header-tools button{font-size:12px;padding:9px 13px}.avatar{width:32px;height:32px;display:grid;place-items:center;background:#edf2ff;border:1px solid #dce5fa;color:var(--blue);font-weight:600;border-radius:50%;font-size:12px;margin-left:5px}.badge{display:inline-flex;align-items:center;border-radius:5px;font-size:11px;font-weight:500;padding:5px 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0;margin-top:16px;display:flex;justify-content:flex-end;gap:10px}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:20px}.tabs button{border:0;border-radius:0;background:none;padding:12px 18px;font-size:12px;color:#8190a5;border-bottom:2px solid transparent}.tabs button.active{color:var(--blue);border-bottom-color:var(--blue);font-weight:600}.toolbar{display:flex;gap:9px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.toolbar input{width:280px;padding:9px 10px}.toolbar button{font-size:12px}.pager{display:flex;align-items:center;justify-content:flex-end;gap:12px;padding:15px 20px;font-size:11px;border-top:1px solid var(--line)}.pager button{font-size:11px;padding:6px 11px}.chat-workspace{display:grid;grid-template-rows:auto auto minmax(70px,1fr) auto auto;height:calc(100dvh - 265px);min-height:380px;background:#fff;border:1px solid var(--line);border-radius:9px;overflow:hidden}.chat-info{padding:13px 18px;background:#fff;border-bottom:1px solid var(--line);font-size:11px;line-height:1.8}.chat-info .estimate{color:#4c78bc;font-size:10px;margin-top:5px}.chat-info details{margin-top:5px;color:#70829b}.chat-info summary{cursor:pointer;color:#4c78bc}.full-question{max-height:170px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;padding:9px 0}.chat-info .placeholder{color:#9aa7b7}.message-tools{padding:9px 15px;border-bottom:1px solid #eef1f6;background:#fbfcfe;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}.message-tools button{font-size:10px;padding:5px 8px}.selected-message{font-size:10px;color:#93a1b5;max-width:290px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.messages{overflow:auto;min-height:0;padding:18px 20px;background:#f8fafd;display:flex;flex-direction:column;gap:15px}.message{align-self:flex-start;max-width:80%;min-width:100px;border:1px solid transparent;border-radius:9px;padding:3px;cursor:pointer}.message.engineer{align-self:flex-end}.message.system{align-self:center;max-width:100%;font-size:10px;color:#98a6b8;text-align:center}.message.selected{border-color:#a8c4ff;background:#edf4ff}.message-meta{font-size:9px;color:#97a4b6;padding:0 4px 5px;display:flex;gap:9px}.message.engineer .message-meta{justify-content:flex-end}.message-text{background:#fff;border:1px solid #e7edf5;border-radius:8px;padding:10px 13px;color:#41536d;font-size:12px;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere;box-shadow:0 2px 3px #142b4b02}.engineer .message-text{background:#edf3ff;border-color:#dce8ff;color:#3e609b}.message.system .message-text{background:none;border:none;padding:3px;box-shadow:none;color:#99a7b9;font-size:10px}.message-media{display:flex;gap:7px;flex-wrap:wrap;margin-top:7px}.message-media button{padding:6px 9px;color:var(--blue);font-size:10px;background:#f6f9ff;border-color:#dfe9f9}.chat-actions{padding:9px 15px;display:flex;gap:7px;flex-wrap:wrap;border-top:1px solid var(--line)}.chat-actions button{font-size:10px;padding:7px 9px}.composer{border-top:1px solid #edf1f7;padding:12px 15px;display:grid;grid-template-columns:minmax(0,1fr) 78px;gap:11px;background:white}.composer textarea{min-height:64px;max-height:120px;resize:none;background:#fcfdff;font-size:12px}.composer button{align-self:stretch}.compose-caption{grid-column:1/-1;color:#9da8b8;font-size:9px;margin-bottom:-6px}.modal-overlay{position:fixed;inset:0;background:#0a193961;backdrop-filter:blur(3px);display:grid;place-items:center;padding:25px;z-index:50}.modal{width:650px;max-width:100%;max-height:90dvh;overflow:auto;background:white;border-radius:12px;box-shadow:0 25px 80px #05132a35}.modal.large{width:1050px}.modal-head{position:sticky;top:0;background:white;padding:18px 23px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;z-index:1}.modal-head h2{font-size:16px;margin:0}.modal-body{padding:23px}.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:0 23px 20px}.modal pre,.json-output{white-space:pre-wrap;overflow-wrap:anywhere;background:#f7f9fc;padding:16px;border:1px solid var(--line);border-radius:7px;font:11px/1.8 Consolas,monospace;max-height:60dvh;overflow:auto}.media-viewer{display:grid;gap:15px}.media-viewer img{display:block;max-width:100%;max-height:70dvh;object-fit:contain;margin:auto}.media-viewer video{width:100%;max-height:68dvh;background:#111;border-radius:7px}.media-viewer a{font-size:12px;overflow-wrap:anywhere}.toasts{position:fixed;right:25px;top:22px;display:grid;gap:10px;max-width:430px;z-index:100}.toast{background:#fff;border:1px solid #dce5f2;border-left:3px solid var(--blue);border-radius:8px;box-shadow:0 8px 30px #183d6922;padding:14px 18px;font-size:12px;line-height:1.7;overflow-wrap:anywhere}.toast.error{border-left-color:var(--red);color:#aa3e4a}.toast.success{border-left-color:var(--green);color:#2b805d}.analysis-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:18px}.bar-list{display:grid;gap:13px}.bar-item{display:grid;grid-template-columns:100px minmax(0,1fr) 35px;gap:10px;align-items:center;font-size:11px}.bar-track{height:7px;background:#edf2fa;border-radius:4px;overflow:hidden}.bar-fill{height:100%;background:#6d98ef;min-width:2px}.customer-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:18px}.customer-layout .chat-workspace{height:calc(100dvh - 265px)}.customer-side .panel-body{padding:17px}.customer-side label{margin-bottom:13px}.customer-side .row button{font-size:11px;padding:7px 10px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.feature-card{padding:20px;border:1px solid var(--line);border-radius:8px;background:#fff}.feature-card h3{margin-bottom:10px}.feature-card p{font-size:12px;color:var(--muted);margin:0}.pill{background:#f1f5fc;padding:4px 8px;border-radius:4px;color:#6a80a5;font-size:10px}.help-table td{white-space:normal;line-height:1.9}.filters input,.filters select{width:160px;font-size:11px}.loading{opacity:.55;pointer-events:none}@media(min-width:1600px){main{padding:30px 48px}.topbar{padding:0 48px}.stats-grid{gap:22px}.stat-card{padding:23px}}@media(max-width:1100px){.app-shell{grid-template-columns:192px minmax(0,1fr)}.sidebar{padding-left:10px;padding-right:10px}.brand{font-size:12px;gap:8px}.brand small{font-size:7px}.topbar{padding:0 22px}.header-tools{gap:6px}.header-tools .avatar{display:none}main{padding:22px 20px}.stats-grid{gap:10px}.stat-card{padding:15px}.dashboard-bottom{grid-template-columns:1.5fr 1fr}.settings-grid{gap:14px}.customer-layout{grid-template-columns:250px minmax(0,1fr)}.header-tools .badge{font-size:9px}.heading h1{font-size:20px}}@media(max-width:820px){.app-shell{display:block}.sidebar{position:relative;height:auto;padding:13px 16px}.brand{padding:0;font-size:13px}.brand small,.nav-caption,.sidebar-bottom{display:none}nav{display:flex;overflow:auto;margin-top:13px;gap:4px}nav button{flex:none;padding:9px 10px;font-size:11px}nav button>span{display:none}.topbar{height:82px;padding:0 16px}.header-tools #refresh-state{display:none}.header-tools button{font-size:10px;padding:8px 9px}.heading h1{font-size:19px}.heading small{font-size:9px}main{padding:17px 14px}.stats-grid{grid-template-columns:1fr 1fr;gap:10px}.stat-value{font-size:24px}.stat-card{padding:13px 15px}.stat-icon{width:24px;height:24px}.dashboard-bottom,.settings-grid,.customer-layout{grid-template-columns:1fr}.footer{padding:0 16px 13px;font-size:9px}.intro{align-items:flex-start}.intro p{font-size:10px}.intro .row button{font-size:10px}.feature-grid{grid-template-columns:1fr 1fr}.chat-workspace,.customer-layout .chat-workspace{height:calc(100dvh - 280px);min-height:410px}.customer-side .panel-body{display:grid;grid-template-columns:1fr 1fr;gap:12px}.customer-side h3,.customer-side .hint{grid-column:1/-1}.customer-side label{margin:0}.customer-side .row{grid-column:1/-1}.login-screen{grid-template-columns:1fr}.login-brand{padding:28px 30px 22px}.login-brand h1,.login-brand p,.login-status{display:none}.login-brand .brand-mark{width:35px;height:35px;font-size:20px}.login-brand>span{margin-top:12px;font-size:12px}.login-panel{padding:45px 25px}.modal-overlay{padding:12px}.form-grid{gap:13px}.table-scroll table{min-width:620px}.message{max-width:91%}.header-tools .badge{display:none}.analysis-cards{gap:8px}.bar-item{grid-template-columns:80px minmax(0,1fr) 30px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Keep long issue details scrollable without displacing the reply composer. */
.chat-info{max-height:190px;overflow:auto;min-height:0}.chat-workspace{min-height:470px}.full-question{max-height:135px}@media(max-width:820px){.chat-workspace,.customer-layout .chat-workspace{min-height:560px}.chat-info{max-height:160px}.full-question{max-height:105px}}