:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#26364a;background:#f3f6f8;font-size:14px;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{border:1px solid #dee6ec;border-radius:10px;padding:10px 14px;background:#fff;color:#4d6276;cursor:pointer;transition:background .15s,border-color .15s}button:hover{background:#f0f7f8;border-color:#bed9de}button:active{background:#e4f1f3}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:#008e9f;border-color:#008e9f;color:#fff;font-weight:600}button.primary:hover{background:#007885}button.primary:active{background:#006c79}button.quiet{border-color:transparent;background:transparent;font-size:13px}
input,textarea,select{width:100%;border:1px solid #dce5eb;border-radius:10px;padding:12px;background:white;color:#26364a}textarea{resize:none}input:focus-visible,textarea:focus-visible,button:focus-visible,select:focus-visible{outline:3px solid #a8dfe4;outline-offset:2px}label{display:block;font-size:12px;color:#758596}label input{margin-top:8px}h1,h2,h3,p{margin-top:0}h1{font-size:23px;line-height:32px;letter-spacing:0;margin-bottom:0}h2{font-size:15px;line-height:22px;margin:0;font-weight:600}h3{font-size:16px}p{line-height:1.65}.eyebrow{display:block;font-size:10px;letter-spacing:1.5px;color:#8093a4;font-weight:600;margin-bottom:4px}.muted,.note{color:#8a98a6}.note{font-size:11px;line-height:18px;margin:10px 0 0}
.login{max-width:420px;margin:10vh auto;padding:36px}.brandmark{background:#e7f5f6;border:1px solid #d0eaed;color:#007885;width:48px;height:48px;display:grid;place-items:center;border-radius:14px;font-size:23px;margin-bottom:28px}.login form{display:grid;gap:20px;margin:32px 0}.login .primary{height:48px}.login .muted{margin-top:12px}
#workspace{max-width:1160px;height:100dvh;min-height:620px;margin:0 auto;padding:28px;display:grid;grid-template-rows:auto auto auto minmax(0,1fr);gap:16px}
header,.section-head,.connection,.composer-footer,.dialog-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}header{min-height:48px}.connection{justify-content:flex-start;font-size:12px;color:#7b8998;padding:8px 12px;border:1px solid #e2e9ee;border-radius:8px;background:#edf2f5;min-height:36px}.dot{width:6px;height:6px;flex-shrink:0;background:#91a1af;border-radius:50%}.badge{flex-shrink:0;margin-left:auto;background:#e2f1f2;color:#38818b;border-radius:5px;padding:3px 7px;font-size:10px}
.project-bar{display:flex;align-items:center;gap:12px}.project-bar label{white-space:nowrap}.project-bar select{flex:1;min-width:0;height:44px;font-weight:500}.project-bar button{white-space:nowrap;height:44px}
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:16px;min-height:0}aside,.conversation{background:#fff;border:1px solid #e0e7ed;border-radius:14px;padding:18px;min-width:0;min-height:0}aside{display:flex;flex-direction:column;background:#fbfcfd}aside .section-head button{border:0;background:transparent;color:#008594;padding:6px;font-size:12px}aside nav{display:grid;align-content:start;gap:8px;margin-top:16px;overflow:auto;min-height:0}.task{text-align:left;display:grid;gap:5px;width:100%;overflow-wrap:anywhere;padding:12px;border-color:transparent;background:transparent}.task span{font-size:13px;line-height:20px}.task small{font-size:10px;color:#8a99a7}.task.selected{background:#eaf5f6;border-color:#d4e9ec;color:#007d8c;box-shadow:inset 3px 0 #008e9f}.task.selected small{color:#6f989e}
.conversation{display:flex;flex-direction:column;padding:20px}.conversation>.section-head{min-height:26px}.conversation>.section-head h2{overflow-wrap:anywhere}.conversation>.section-head button{flex-shrink:0;font-size:12px;padding:6px 10px}#progress{font-size:11px;margin:5px 0 0;padding-bottom:14px;border-bottom:1px solid #eff2f5}#messages{flex:1;min-height:36px;overflow:auto;overflow-wrap:anywhere;padding:18px 0;scrollbar-width:thin}#messages:empty{display:flex;flex-direction:column;align-items:center;justify-content:center;color:#a1aeba;text-align:center;gap:8px}#messages:empty:before{content:"等待第一条消息";font-size:14px;font-weight:500;color:#788d9c}#messages:empty:after{content:"可以描述报错现象，或补充排查要求";font-size:12px}.empty{color:#8595a4;text-align:center;padding:32px 12px}.empty p{font-size:12px}.empty-icon{display:inline-grid;place-items:center;width:40px;height:40px;background:#f2f7f8;color:#75a5ad;border:1px solid #e1edef;border-radius:12px;margin-bottom:16px;font-size:22px}
.message{margin-bottom:18px}.message small{font-size:11px;color:#8a98a7}.message p{white-space:pre-wrap;background:#f5f8fa;border-radius:12px;padding:12px 14px;margin:6px 0;line-height:1.75}.message.user p{background:#edf7f7}
#compose{flex-shrink:0;border:1px solid #d9e5eb;border-radius:12px;padding:12px;margin-top:8px;background:#fcfdfe;transition:border-color .15s}#compose:focus-within{border-color:#79bfc8;box-shadow:0 0 0 2px #008e9f09}#compose textarea{border:0;padding:0;min-height:54px;height:60px;line-height:22px;background:transparent;font-size:14px}#compose textarea:focus-visible{outline:none}#compose textarea::placeholder{color:#a0adba}.composer-footer{font-size:10px;color:#95a2af;gap:8px;margin-top:8px}.composer-footer button{font-size:13px;padding:8px 20px;min-height:36px}.conversation>.note{text-align:center;font-size:10px}
#notice{position:fixed;top:16px;bottom:auto;left:50%;transform:translateX(-50%);width:max-content;max-width:calc(100vw - 32px);background:#26384b;color:white;border-radius:10px;padding:12px 16px;box-shadow:0 6px 24px #26384b25;z-index:5;font-size:12px;pointer-events:none}
dialog{border:1px solid #dce4ea;border-radius:16px;width:360px;max-width:calc(100vw - 32px);padding:24px;box-shadow:0 24px 80px #26384b20}dialog::backdrop{background:#26384b45}dialog h2{margin-bottom:24px}.dialog-actions{justify-content:flex-end;margin-top:24px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}
@media(max-width:700px){#workspace{padding:20px 16px max(12px,env(safe-area-inset-bottom));gap:12px}header{min-height:44px}h1{font-size:21px;line-height:28px}.eyebrow{font-size:9px;letter-spacing:1.3px}.connection{font-size:11px;padding:7px 10px;gap:7px}.badge{font-size:9px}.project-bar{gap:8px}.project-bar label{font-size:11px}.project-bar select{font-size:13px;padding:10px;height:42px}.project-bar button{padding:8px 10px;font-size:12px;height:42px}.layout{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);gap:12px}aside{padding:12px 14px}.section-head h2{font-size:13px}aside nav{display:flex;gap:8px;overflow-x:auto;margin-top:8px;max-height:68px;padding-bottom:2px}aside nav>.note{margin:4px 0}.task{min-width:160px;max-width:220px;flex-shrink:0;padding:8px 12px;gap:2px;border-radius:8px}.task span{font-size:12px}.task small{font-size:10px}.conversation{padding:16px 14px 10px}.conversation .section-head h2{font-size:14px}#progress{padding-bottom:10px;margin-top:3px}#messages{padding:12px 0}#compose{padding:10px}#compose textarea{font-size:14px;height:54px;min-height:54px}.composer-footer{font-size:9px}.composer-footer button{padding:7px 18px;min-height:34px}.conversation>.note{font-size:9px;line-height:14px;margin-top:8px}.login{margin-top:5vh;padding:28px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
#activity{max-height:180px;overflow:auto;flex-shrink:0;font-size:12px;color:#728596}#activity:empty{display:none}#activity details{border-top:1px solid #edf1f4;padding:8px 0}#activity summary{cursor:pointer}#activity p{margin:6px 0}.approval-card{border:1px solid #eddfbd;background:#fffbf3;border-radius:10px;padding:12px;margin-bottom:8px}.approval-card button{font-size:12px;margin-right:8px;padding:6px 10px}

/* Quiet, chat-first workspace. Navigation is secondary to the conversation. */
:root{background:#fff;color:#252b30}
#workspace{max-width:1440px;padding:0;min-height:0;grid-template-rows:64px auto minmax(0,1fr);gap:0}
header{padding:12px 24px;border-bottom:1px solid #f0f1f2;justify-content:flex-start}header>div{flex:1}header h1{font-size:18px;line-height:24px}header .eyebrow{font-size:10px;letter-spacing:0;margin:0;color:#8a9298}
#menu-toggle,#quick-new{width:40px;height:40px;padding:0;border:0;border-radius:50%;font-size:24px;color:#41484d;background:transparent}
#menu-toggle{display:none}.connection{margin:0;border:0;border-radius:0;background:#fff;padding:8px 24px;font-size:11px;min-height:32px}.badge{background:#f1f5f4;color:#657b76}.layout{gap:0;grid-template-columns:264px minmax(0,1fr)}
aside{border:0;border-right:1px solid #ebeeee;border-radius:0;background:#f7f8f8;padding:24px 16px;gap:20px}aside .project-bar{flex-wrap:wrap;gap:8px}aside .project-bar label{width:100%}aside .project-bar select{width:100%;flex:auto;font-size:13px}aside .project-bar button{border:0;background:transparent;padding:0;height:28px;font-size:12px}aside nav{margin:0;flex:1}aside #logout{margin-top:auto;text-align:left}.task.selected{box-shadow:none;background:#e9eeee;border-color:transparent;color:#273e3d}
.conversation{border:0;border-radius:0;padding:24px max(32px,calc((100% - 760px)/2)) 12px;background:#fff}.conversation>.section-head h2{font-size:14px;color:#737e85;font-weight:500}#progress{border:0;color:#98a1a6;font-size:11px;padding-bottom:4px}#messages{padding:24px 0}.message{margin-bottom:28px}.message small{font-size:11px}.message.user{text-align:right}.message.user small{display:none}.message.user p{display:inline-block;max-width:88%;text-align:left;background:#f1f3f3;border-radius:20px 20px 4px 20px;padding:12px 18px}.message.assistant p{background:transparent;padding:6px 0;font-size:15px;line-height:1.85}.message.assistant small{color:#008594;font-weight:600}
.empty{padding:14vh 12px 32px}.empty-icon{background:#edf6f4;color:#428477;border:0;border-radius:50%;font-size:24px}.empty h3{font-size:23px;color:#293b39;font-weight:600}.empty p{font-size:14px;max-width:300px;margin:0 auto;line-height:1.8}
#compose{border:1px solid #e4e8e7;border-radius:24px;background:#f7f8f8;padding:16px 18px 12px}#compose textarea{font-size:16px;height:44px;min-height:44px}.composer-footer button{border-radius:20px;min-height:36px;padding:8px 18px;background:#24443f;border-color:#24443f}.composer-footer{margin-top:4px}.conversation>.note{color:#9aa3a6}.approval-card{background:#faf9f5;border-color:#e8e3d5;border-radius:14px}#activity{max-height:220px}#menu-backdrop{display:none}
#attachment-list{display:grid;gap:6px;max-height:150px;overflow:auto;margin-bottom:8px}#attachment-list:empty{display:none}.attachment-chip{display:grid;grid-template-columns:minmax(0,1fr) 28px;gap:2px 8px;background:#fff;border:1px solid #dfe8e7;border-radius:10px;padding:8px 10px;text-align:left}.attachment-chip span{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-chip small{grid-row:2;font-size:10px;color:#6b807b}.attachment-chip button{grid-column:2;grid-row:1/3;border:0;padding:0;min-height:28px;background:transparent;color:#657b76;font-size:20px}#attach-files{background:transparent;color:#315f57;border:1px solid #d6e2df;font-size:12px;padding:6px 10px;white-space:nowrap}.sent-attachment{display:block;max-width:100%;overflow-wrap:anywhere;font-size:12px;line-height:1.6;color:#007885;margin-top:6px;text-align:left;border:1px solid #e3eae8;border-radius:10px;padding:8px 12px;background:#f7faf9;text-decoration:none}.sent-attachment:hover{background:#e8f4f1}.sent-attachment:active{background:#dbeee9}.sent-attachment:focus-visible{outline:2px solid #008e9f;outline-offset:2px}.composer-footer>span{flex:1;font-size:9px}
@media(max-width:700px){
 #workspace{padding:0;grid-template-rows:60px auto minmax(0,1fr);height:100dvh}header{padding:8px 16px}header .eyebrow{display:none}header h1{font-size:18px}#menu-toggle{display:block}.connection{padding:6px 20px;font-size:10px;gap:6px}.connection #connection{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{font-size:9px}
 .layout{display:block;position:relative;min-height:0}.conversation{height:100%;padding:12px 20px max(12px,env(safe-area-inset-bottom))}.conversation>.section-head h2{font-size:12px}#progress{font-size:10px;margin:4px 0}#messages{padding:20px 0}.message{margin-bottom:22px}.message p{font-size:15px}.message.assistant p{font-size:15px}.empty{padding:12vh 8px 20px}#compose{padding:14px 16px 10px}#compose textarea{font-size:16px;height:42px;min-height:42px}.composer-footer span{font-size:10px}.conversation>.note{font-size:10px;margin-top:8px}
 aside{display:none;position:fixed;inset:0 auto 0 0;width:min(310px,85vw);z-index:12;padding:32px 20px 24px;border:0;box-shadow:8px 0 32px #253a3914;overflow:auto}aside nav{display:grid;max-height:none;overflow:auto}.task{min-width:0;max-width:none;width:100%;padding:12px}.task span{font-size:14px}aside .section-head h2{font-size:14px}.menu-open aside{display:flex}#menu-backdrop:not([hidden]){display:block;position:fixed;inset:0;z-index:11;background:#14232040;border:0;border-radius:0;width:100%;height:100%;padding:0}
}