/* layout: compact 3D scan hero (left) beside the chat (right); the layer map with its connections runs full width below */
:root{
  --bg:#0b0d12; --panel:#12151c; --line:#232936; --fg:#e6e8ee; --mute:#8a90a0; --inset:#0a0d13;
  --warn:#e8c26a; --accent:#4cc3d9; --you:#1c2433;
  --display:'Fraunces',Georgia,serif; --body:'IBM Plex Sans',system-ui,sans-serif; --mono:'IBM Plex Mono',ui-monospace,monospace;
  color-scheme:dark;
}
@media (prefers-color-scheme: light){:root:not([data-theme="dark"]){--bg:#eef0f4;--panel:#fff;--line:#d5d9e2;--fg:#161a22;--mute:#5d6578;--inset:#f3f5f9;--warn:#946a08;--accent:#0e7a92;--you:#e3e9f4;color-scheme:light}}
:root[data-theme="light"]{--bg:#eef0f4;--panel:#fff;--line:#d5d9e2;--fg:#161a22;--mute:#5d6578;--inset:#f3f5f9;--warn:#946a08;--accent:#0e7a92;--you:#e3e9f4;color-scheme:light}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:14px/1.5 var(--body);padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:14px 28px}
button,select,textarea{font:inherit;color:var(--fg)}
button,select{background:var(--panel);border:1px solid var(--line);border-radius:7px;padding:5px 12px;cursor:pointer;font-size:13px}
button:disabled{opacity:.45;cursor:default}
button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
button:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.app{display:grid;grid-template-columns:minmax(0,1fr) clamp(400px,38vw,680px);gap:12px;height:calc(100vh - 42px);min-height:620px}
.mon{display:flex;flex-direction:column;gap:12px;min-width:0;min-height:0;overflow-y:auto;overscroll-behavior:contain}
.mon .scan{flex:none;height:clamp(300px,44vh,520px)}
.mon .net{flex:none}
.app>.chat{min-height:0;height:100%}
.scan{position:relative;border:1px solid #1b2433;border-radius:12px;overflow:hidden;background:radial-gradient(90% 80% at 50% 55%,#06222e 0%,#02090f 72%);min-width:0}
#gl{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:grab;touch-action:none}
.scan h1{position:absolute;left:14px;top:10px;margin:0;font:500 22px/1.1 var(--display);color:#e6e8ee;letter-spacing:-.01em;pointer-events:none}
.scan .mdl{position:absolute;left:14px;top:38px;font:11px var(--mono);color:#6fa8bd;pointer-events:none;max-width:70%}
#hud{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.scan .meta{position:absolute;left:14px;bottom:10px;right:14px;display:flex;justify-content:space-between;gap:8px;font:11px var(--mono);color:#7d8aa3;pointer-events:none}
.scan .meta b{color:#e8c26a;font-weight:400}
.scan{--sc-line:#1b2433}
@media (prefers-color-scheme: light){:root:not([data-theme="dark"]) .scan{background:var(--panel);border-color:var(--line)}
 :root:not([data-theme="dark"]) .scan h1{color:var(--fg)}:root:not([data-theme="dark"]) .scan .mdl,:root:not([data-theme="dark"]) .scan .meta,:root:not([data-theme="dark"]) .bar i{color:var(--mute)}
 :root:not([data-theme="dark"]) .scan .meta b{color:var(--warn)}}
:root[data-theme="light"] .scan{background:var(--panel);border-color:var(--line)}
:root[data-theme="light"] .scan h1{color:var(--fg)}:root[data-theme="light"] .scan .mdl,:root[data-theme="light"] .scan .meta,:root[data-theme="light"] .bar i{color:var(--mute)}
:root[data-theme="light"] .scan .meta b{color:var(--warn)}
.shp{position:absolute;right:34px;bottom:54px;z-index:3;font:11px ui-monospace,monospace;padding:3px 9px;border-radius:12px;border:1px solid var(--line,#456);background:transparent;color:inherit;opacity:.75;cursor:pointer}.shp:hover{opacity:1}
.pcard{align-self:stretch;max-width:100%;text-align:left;border:1px solid var(--line);background:var(--inset);display:flex;flex-direction:column;gap:6px}
.pcard .ph{font:500 12px var(--mono);overflow-wrap:anywhere}
.pcard pre.diff{max-height:260px;overflow:auto;margin:0;padding:6px 8px;background:var(--panel);border-radius:6px;font:11px/1.45 var(--mono);white-space:pre}
.pcard .da{color:#2a9d4a}.pcard .dd{color:#d6453a}.pcard .dh{color:var(--mute)}
.pcard .pb{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.agl{font:11px var(--mono);text-align:left}
.bar{position:absolute;right:14px;top:12px;width:10px;bottom:36px;border-radius:5px;background:linear-gradient(#ff3a2c,#f9e12c,#58dc58,#08c8dc,#1e3cc8);opacity:.9}
.bar i{position:absolute;right:16px;font:10px var(--mono);color:#7d8aa3;font-style:normal}
.chat{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--panel);border:1px solid var(--line);border-radius:12px}
.chead{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--line)}
.chead{justify-content:space-between;flex-wrap:nowrap;align-items:center}
.chead .lhs{flex:1 1 0;display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;min-width:0}
.chead .lhs select{height:32px;margin:0;min-width:150px;max-width:100%;flex:0 1 auto}
.chead .lhs .badge{white-space:nowrap;flex:none;display:inline-flex;align-items:center;line-height:1;min-height:22px}
.badge{font:11px var(--mono);padding:2px 8px;border-radius:99px;border:1px solid var(--line);color:var(--mute)}
.badge.live{color:#58dc58;border-color:#58dc58}
.badge.demo{color:var(--warn);border-color:var(--warn)}
.sp{flex:1}
#msgs{flex:1;min-height:0;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:10px}
.m{max-width:92%;padding:8px 12px;border-radius:10px;white-space:pre-wrap;overflow-wrap:anywhere}
.m.u{align-self:flex-end;background:var(--you)}
.m.a{align-self:flex-start;border:1px solid var(--line)}
.m pre{margin:6px 0;padding:8px 10px;background:var(--inset);border-radius:6px;overflow-x:auto;font:12px/1.5 var(--mono);white-space:pre}
.m.sys{align-self:center;color:var(--mute);font-size:12px;border:0;text-align:center}
form{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--line)}
textarea{flex:1;min-width:0;resize:none;height:44px;background:var(--inset);border:1px solid var(--line);border-radius:8px;padding:9px 11px}
#send{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.net{background:var(--panel);border:1px solid var(--line);border-radius:12px;min-width:0;padding-top:10px;overflow:hidden}
.nh{display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:space-between;align-items:center;padding:0 12px 8px;font-size:12px;color:var(--mute)}
.nh b{color:var(--fg);font-weight:500}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.seg button{border:0;border-radius:0;border-right:1px solid var(--line);padding:4px 11px}
.seg button:last-child{border-right:0}
.nw{display:flex;min-width:0}
.gut{flex:none;width:84px;position:relative;font:11px var(--mono);color:var(--mute)}
.gut span{position:absolute;left:12px}
.scroller{overflow-x:auto;min-width:0;flex:1;padding-bottom:6px;background:var(--inset)}
#net{display:block}
.key{display:flex;flex-wrap:wrap;gap:6px 16px;padding:8px 12px 12px;font-size:12px;color:var(--mute);border-top:1px solid var(--line)}
.sw{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:-1px}
.grad{display:inline-block;width:90px;height:8px;border-radius:2px;margin:0 6px;vertical-align:0;background:linear-gradient(90deg,#1e3cc8,#08c8dc,#58dc58,#f9e12c,#ff3a2c)}
#tip{position:fixed;z-index:20;pointer-events:none;background:var(--panel);border:1px solid var(--fg);border-radius:7px;padding:7px 10px;font:12px/1.5 var(--mono);color:var(--fg);max-width:310px;box-shadow:0 4px 18px rgba(0,0,0,.35)}
.ov{position:fixed;inset:0;z-index:30;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;padding:16px}
.ov[hidden]{display:none}
.mod{width:min(780px,100%);max-height:90vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:14px}
.mh{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--panel);z-index:1}
.mh b{font:500 18px var(--display)}
#mbody{padding:14px 16px 18px;display:flex;flex-direction:column;gap:12px}
.hint{color:var(--mute);font-size:12px;margin:0}
.err{color:#ff7a66;font-size:12px}
.card{border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:6px;background:var(--inset)}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.row .sp{flex:1}
.nm{font-weight:500}.rp{font:11px var(--mono);color:var(--mute);overflow-wrap:anywhere}
.pill{font:11px var(--mono);padding:1px 8px;border-radius:99px;border:1px solid var(--line);color:var(--mute)}
.pill.ok{color:#58dc58;border-color:#58dc58}.pill.act{color:var(--accent);border-color:var(--accent)}
.prog{height:6px;border-radius:3px;background:var(--line);overflow:hidden}.prog i{display:block;height:100%;background:linear-gradient(90deg,#08c8dc,#58dc58)}
input[type=text]{flex:1;min-width:180px;background:var(--inset);border:1px solid var(--line);border-radius:8px;padding:8px 10px;color:var(--fg);font:inherit}
.btn1{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.steps{display:flex;gap:6px;flex-wrap:wrap}.steps span{font:11px var(--mono);padding:2px 10px;border-radius:99px;border:1px solid var(--line);color:var(--mute)}.steps span.on{color:var(--fg);border-color:var(--fg)}
.drop{border:1.5px dashed var(--line);border-radius:10px;padding:18px;text-align:center;color:var(--mute);cursor:pointer}
.drop.over{border-color:var(--accent);color:var(--fg)}
.kv{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px}.kv div{border:1px solid var(--line);border-radius:8px;padding:6px 10px}.kv small{display:block;color:var(--mute);font-size:11px}.kv b{font:500 16px var(--mono)}
pre.pv{margin:0;font:11px/1.4 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;color:var(--mute)}
@media (max-width:1000px){.app{grid-template-columns:1fr;height:auto;min-height:0}.mon{overflow:visible;display:contents}.mon .scan{order:1;height:300px}.app>.chat{order:2;height:520px}.mon .net{order:3}}

/* ---- studio: logit lens, replay, compare, layer bars ---- */
.lensv{overflow-x:auto;padding:10px 12px;background:var(--inset);font:11px/1.3 var(--mono)}
.lensv table{border-collapse:collapse}
.lensv th,.lensv td{padding:3px 6px;border:1px solid var(--line);white-space:pre;max-width:90px;overflow:hidden;text-overflow:ellipsis}
.lensv th{color:var(--mute);font-weight:400;text-align:right}
.lensv tr.out td{font-weight:600;border-top:2px solid var(--fg)}
.lensv td.cur{outline:2px solid var(--accent);outline-offset:-2px}
.lensv .empty{color:var(--mute);font:12px var(--sans,inherit);padding:8px 0}
.rp-bar{align-self:flex-start;display:flex;gap:8px;align-items:center;font:11px var(--mono);color:var(--mute);max-width:92%;flex-wrap:wrap}
.rp-bar input[type=range]{width:180px}
.rp-bar .tok{color:var(--fg);background:var(--inset);border-radius:4px;padding:1px 6px;white-space:pre}
.cmp{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}
.cmp .card{white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px}
.cmp .card b{font:500 12px var(--mono);color:var(--mute)}
.lbars{display:flex;align-items:flex-end;gap:2px;height:70px;border-bottom:1px solid var(--line)}
.lbars i{flex:1;background:linear-gradient(#ffb347,#b8e36a);min-height:1px;border-radius:2px 2px 0 0}
.gen-item{display:grid;grid-template-columns:auto 1fr;gap:6px 10px;align-items:start}
.gen-item textarea{width:100%;min-height:44px;height:auto;font:12px var(--mono)}
.learn h4{margin:10px 0 2px;font:500 14px var(--display)}
.learn p{margin:0;color:var(--mute);font-size:13px;line-height:1.55}
.nw[hidden],.lensv[hidden],#step[hidden]{display:none}

/* ---- 回答时间轴 + 逐层预测表 ---- */
.tl{padding:8px 12px 12px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
.tl[hidden],.trainbars[hidden]{display:none}
.tlh{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font:12px var(--mono);color:var(--fg)}
.tlh select{height:28px;margin:0}
#tlc{width:100%;display:block;border-radius:6px;cursor:crosshair;background:var(--inset)}
#tlr{width:100%}
.lensv{max-height:520px;overflow:auto}
.lensv th{position:sticky;left:0;background:var(--inset);z-index:1}
.lensv tr.out td,.lensv tr.out th{position:sticky;bottom:28px;background:var(--panel);z-index:2}
.lensv tr.lk td,.lensv tr.lk th{position:sticky;bottom:0;background:var(--panel);color:var(--mute);font-weight:400;z-index:2}
.lensv td{cursor:pointer}
.lensv td.lock{box-shadow:inset 0 -2px 0 #58dc58}
.lensv td.lock1{box-shadow:inset 0 -2px 0 #58dc58,inset 2px 0 0 #58dc58}
.trainbars{padding:8px 12px;border-top:1px solid var(--line)}

.lensv table{width:100%;table-layout:fixed}
.lensv th{width:64px}
.lensv td{overflow:hidden;text-overflow:ellipsis}
.lensctl{display:inline-flex;gap:6px;align-items:center;flex-wrap:wrap}
.lensctl[hidden]{display:none}
.lensctl select{height:28px;margin:0;width:auto;min-width:0}
.lensctl .seg button{padding:3px 9px}
.lensctl .seg button[aria-pressed=true]{background:var(--fg);color:var(--bg)}

/* ---- 聊天栏头部：第一行选模型，第二行是一排紧凑的工具按钮 ---- */
.app>.chat .chead{flex-direction:column;align-items:stretch;gap:9px;padding:11px 14px 10px}
.chead .lhs{gap:8px 10px}
.chead .lhs select{height:30px;min-width:170px;font-size:13px;padding:0 10px}
.chead .lhs>button{height:28px;padding:0 10px;font-size:12px}
.chead .tools{display:flex;flex-wrap:wrap;align-items:center;gap:5px}
.chead .tools button{height:28px;padding:0 9px;font-size:12px;line-height:1;background:transparent;color:var(--mute);white-space:nowrap;transition:color .12s,border-color .12s,background .12s}
.chead .tools button:hover{color:var(--fg);border-color:color-mix(in srgb,var(--fg) 35%,var(--line));background:var(--inset)}
.chead .tools button[aria-pressed="true"]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.chead .tools .tseg{display:inline-flex}
.chead .tools .tseg button:first-child{border-radius:7px 0 0 7px}
.chead .tools .tseg button:last-child{border-radius:0 7px 7px 0;border-left:0;padding:0 8px}
.chead .tools .tseg svg{width:14px;height:14px;display:block}
.chead .tools #clear{margin-left:auto;padding:0 8px}.chead .tools #clear svg{width:15px;height:15px;display:block}

/* ---- 神经网络层头部：标题一行，控件一行 ---- */
.nh{display:flex;flex-direction:column;align-items:stretch;gap:8px;padding:0 12px 10px}
.nh .nh-top,.nh .nh-bar{display:flex;align-items:center;gap:8px;min-width:0;flex-wrap:wrap}
.nh .nh-top .ttl{flex:1 1 auto;min-width:0}
.net button,.net select{font-size:12px}
.nh button{height:27px;padding:0 10px;line-height:1}
.nh .seg button{height:25px;padding:0 11px}
.nh #dataNote{margin-left:auto;display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end;text-align:right}
.tlh button{height:27px;padding:0 10px}
.chat textarea{font-size:14px}
#send{height:44px;padding:0 18px}
/* 聊天栏较窄时：去掉“模型”标签、让下拉框收窄 */
.app>.chat{container-type:inline-size}
@container (max-width:470px){.chead .lhs>label.badge{display:none}.chead .lhs select{min-width:0;flex:0 1 160px}}

/* ---- 回答回放：柱状图 + 原文着色 ---- */
.tlkey{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:11.5px;color:var(--mute)}
.tlkey .sw{width:9px;height:9px}
.tlt{max-height:132px;overflow:auto;padding:8px 10px;border-radius:6px;background:var(--inset);font-size:13px;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--fg)}
.tlt span{border-radius:3px;cursor:pointer;padding:1px 0}
.tlt span:hover{outline:1px solid color-mix(in srgb,var(--fg) 50%,transparent)}
.tlt span.on{outline:2px solid var(--fg);outline-offset:0}
.tlt span.low{text-decoration:underline wavy color-mix(in srgb,#e8604a 80%,transparent);text-underline-offset:3px}
#tlr{height:14px;margin:0}
/* 逐层预测表：字小一号 */
.lensv{font:10.5px/1.25 var(--mono)}
.lensv th,.lensv td{padding:2px 5px;font-size:11px}
.lensv th{width:52px}

/* ---- 回答下方：存为训练样本 ---- */
.m-act{align-self:flex-start;display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:-4px}
.m-act button{height:24px;padding:0 9px;font-size:11.5px;background:transparent;color:var(--mute)}
.m-act button:hover:not(:disabled){color:var(--fg);background:var(--inset)}
.m-act .m-note{font-size:11.5px;color:#58dc58}
textarea.smp{width:100%;height:auto;resize:vertical;font-size:13px;line-height:1.55}
.smpl{max-height:260px;overflow:auto;display:flex;flex-direction:column;gap:6px}
.smpl .it{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;font-size:12px}
.smpl .it .q{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.smpl .it .a{color:var(--mute);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;grid-column:1}
.smpl .it button{grid-row:1/3;grid-column:2;align-self:center;height:24px;padding:0 8px;font-size:11.5px}