#ai-demo{--ld-white:#f5f7fb;--ld-silver:#c5cfdb;--ld-ink:#202a49;--ld-deep:#17213d;--ld-blue:#9de5ff;--ld-muted:#a8b9d0;box-sizing:border-box;color:var(--ld-ink);font-family:"PingFang SC","Microsoft YaHei",sans-serif;padding:100px 0 112px;max-width:1240px;margin:auto}
#ai-demo *,#ai-demo *::before,#ai-demo *::after{box-sizing:border-box}
#ai-demo button,#ai-demo textarea{font:inherit}
#ai-demo button{cursor:pointer;-webkit-tap-highlight-color:transparent}
#ai-demo button:disabled{cursor:default}
#ai-demo button:focus-visible,#ai-demo textarea:focus-visible{outline:3px solid #389aca;outline-offset:5px}
#ai-demo .ld-heading-row{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;margin-bottom:44px}
#ai-demo .ld-invitation{font-size:14px;letter-spacing:.08em;margin:0 0 16px;color:#5b6c83}
#ai-demo h2{font-size:clamp(34px,4vw,57px);line-height:1.24;letter-spacing:-.055em;font-weight:650;margin:0}
#ai-demo .ld-heading-note{font-size:15px;line-height:1.9;color:#5b6c83;margin:0 0 4px;max-width:420px}
#ai-demo .ld-scene-switch{display:flex;border-bottom:1px solid #c4cedb;margin-bottom:30px;gap:40px}
#ai-demo .ld-scene-switch button{display:flex;align-items:center;gap:10px;border:0;border-bottom:3px solid transparent;background:none;color:#6a778d;min-height:62px;padding:12px 4px 16px;font-size:18px;font-weight:550;white-space:nowrap}
#ai-demo .ld-scene-switch button[aria-pressed=true]{border-color:var(--ld-ink);color:var(--ld-ink)}
#ai-demo .ld-scene-icon{font-size:22px;font-weight:400}
#ai-demo .ld-stage{position:relative;overflow:hidden;background:var(--ld-deep);color:var(--ld-white);border:1px solid #3c4c68;border-radius:5px;box-shadow:0 24px 65px -30px rgba(28,45,77,.38)}
#ai-demo .ld-stage-top{display:flex;justify-content:space-between;gap:30px;padding:30px 34px;border-bottom:1px solid #3a4560;background:radial-gradient(ellipse at 20% 0%,rgba(120,195,238,.11),transparent 75%)}
#ai-demo .ld-task-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ld-blue);margin:0 0 12px}
#ai-demo .ld-signal{width:7px;height:7px;border-radius:50%;background:var(--ld-blue);box-shadow:0 0 14px rgba(157,229,255,.8)}
#ai-demo .ld-task h3{font-size:23px;font-weight:550;line-height:1.45;letter-spacing:-.025em;margin:0 0 10px}
#ai-demo .ld-task>p:last-child{font-size:14px;line-height:1.85;color:#b9c9df;margin:0;max-width:670px}
#ai-demo .ld-sample-notice{flex:0 0 auto;align-self:center;color:#a8b9d0;font-size:12px;line-height:1.8;margin:0}
#ai-demo .ld-workbench{display:grid;grid-template-columns:1.12fr 1fr}
#ai-demo .ld-flow{padding:28px 34px 20px;min-width:0}
#ai-demo .ld-flow-heading{display:flex;justify-content:space-between;align-items:center;color:var(--ld-silver);font-size:13px;margin-bottom:24px}
#ai-demo .ld-flow-heading>span:last-child{font-variant-numeric:tabular-nums;color:var(--ld-blue)}
#ai-demo .ld-steps{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;padding:0;margin:0 0 24px}
#ai-demo .ld-steps::before{content:"";position:absolute;top:21px;left:12.5%;right:12.5%;height:1px;background:#4b5a77;pointer-events:none}
#ai-demo .ld-steps li{position:relative;min-width:0}
#ai-demo .ld-steps button{position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;width:100%;border:0;background:none;color:#d1dbeb;padding:0 3px 7px;text-align:center;line-height:1.5}
#ai-demo .ld-step-symbol{display:flex;justify-content:center;align-items:center;position:relative;width:43px;height:43px;background:var(--ld-deep);border:1px solid #60718e;border-radius:50%;color:#a7bdd7;font-size:15px;transition:background .25s,border-color .25s,box-shadow .25s}
#ai-demo .ld-step-name{font-size:13px;white-space:nowrap}
#ai-demo .ld-step-state{font-size:11px;color:#8d9fba;white-space:nowrap}
#ai-demo .ld-steps li[data-state=active] .ld-step-symbol{background:#345879;border-color:var(--ld-blue);color:var(--ld-blue);box-shadow:0 0 0 5px rgba(157,229,255,.08),0 0 22px rgba(90,174,220,.17)}
#ai-demo .ld-steps li[data-state=active] .ld-step-state{color:var(--ld-blue)}
#ai-demo .ld-steps li[data-state=done] .ld-step-symbol{background:var(--ld-blue);border-color:var(--ld-blue);color:var(--ld-deep)}
#ai-demo .ld-steps button[aria-expanded=true] .ld-step-name{color:white;text-decoration:underline;text-decoration-color:#749ab9;text-underline-offset:5px}
#ai-demo .ld-detail-panel{position:relative;min-height:163px;border-top:1px solid #43536e;padding:18px 0 13px}
#ai-demo .ld-detail-top{display:flex;justify-content:space-between;gap:8px;font-size:11px;color:#9eb1ca;margin-bottom:10px}
#ai-demo .ld-detail-top>span:first-child{color:var(--ld-blue)}
#ai-demo .ld-detail-panel h4{font-size:18px;font-weight:500;margin:0 0 8px}
#ai-demo .ld-detail-panel p{font-size:14px;line-height:1.9;margin:0;color:#bacbe1;max-width:43em}
#ai-demo .ld-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:12px}
#ai-demo .ld-controls button{min-height:43px;border-radius:3px;border:1px solid #5d708f;padding:10px 15px;background:none;color:#d8e6f5;font-size:13px;line-height:1.4}
#ai-demo .ld-controls .ld-run{display:flex;align-items:center;gap:9px;background:var(--ld-blue);border-color:var(--ld-blue);color:var(--ld-deep);font-weight:600;padding-inline:20px}
#ai-demo .ld-controls button:disabled{opacity:.42}
#ai-demo .ld-controls .ld-run:disabled{opacity:.6}
#ai-demo .ld-status{font-size:12px;line-height:1.8;color:#a8b9d0;margin:16px 0 0;min-height:23px}
#ai-demo .ld-output{padding:28px 30px 26px;background:#eef3f9;border-left:1px solid #475671;color:var(--ld-ink);min-width:0}
#ai-demo .ld-output-top{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:#63748b;margin-bottom:16px}
#ai-demo .ld-output-state{color:#435d7c}
#ai-demo .ld-output h3{font-size:24px;font-weight:550;letter-spacing:-.035em;margin:0 0 20px;line-height:1.4}
#ai-demo .ld-output-paper{background:rgba(255,255,255,.78);border-left:2px solid #b4cfdf;padding:18px 18px 8px;min-height:287px}
#ai-demo .ld-output-intro{font-size:12px;line-height:1.7;color:#6b7a90;margin:0 0 12px}
#ai-demo .ld-output-text{display:block;resize:none;width:100%;height:230px;min-height:230px;border:0;padding:0;margin:0;background:none;color:#25334c;font-size:14px;line-height:1.95;overflow:auto;scrollbar-width:thin;border-radius:0}
#ai-demo .ld-output-bottom{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:18px}
#ai-demo .ld-output-bottom button{display:flex;align-items:center;gap:7px;border:1px solid #8198b0;background:none;color:var(--ld-ink);min-height:43px;padding:10px 13px;border-radius:3px;font-size:13px}
#ai-demo .ld-output-bottom button:disabled{opacity:.45}
#ai-demo .ld-output-bottom>span{font-size:11px;line-height:1.6;color:#63748b}
#ai-demo .ld-progress{height:3px;background:#293752}
#ai-demo .ld-progress span{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:left;background:var(--ld-blue);box-shadow:0 0 12px rgba(157,229,255,.65);transition:transform 250ms var(--ease-out)}
#ai-demo [hidden]{display:none!important}
@media(max-width:1000px){#ai-demo .ld-heading-row{gap:24px}#ai-demo .ld-heading-note{max-width:330px}#ai-demo .ld-stage-top{padding:26px;gap:20px}#ai-demo .ld-flow{padding:26px 24px 20px}#ai-demo .ld-output{padding:26px 24px}#ai-demo .ld-sample-notice{flex-basis:155px}#ai-demo .ld-controls .ld-run{padding-inline:14px}}
@media(max-width:760px){#ai-demo{padding:64px 0 72px}#ai-demo .ld-heading-row{display:block;margin-bottom:30px}#ai-demo h2{font-size:39px}#ai-demo .ld-heading-note{max-width:none;margin-top:22px;font-size:14px}#ai-demo .ld-scene-switch{gap:0;justify-content:space-between;margin-bottom:22px}#ai-demo .ld-scene-switch button{font-size:15px;gap:7px;min-height:57px;padding:10px 4px 14px}#ai-demo .ld-scene-icon{font-size:19px}#ai-demo .ld-stage-top{display:block;padding:24px}#ai-demo .ld-task h3{font-size:21px}#ai-demo .ld-task>p:last-child{font-size:13px}#ai-demo .ld-sample-notice{font-size:11px;margin-top:16px;line-height:1.7}#ai-demo .ld-sample-notice br{display:none}#ai-demo .ld-workbench{grid-template-columns:1fr}#ai-demo .ld-flow{padding:24px 22px 20px}#ai-demo .ld-detail-panel{min-height:150px}#ai-demo .ld-output{border-left:0;border-top:1px solid #475671;padding:25px 23px}#ai-demo .ld-output-paper{min-height:260px;padding:16px 15px 8px}#ai-demo .ld-output-text{height:240px;min-height:240px;font-size:13px}#ai-demo .ld-output h3{font-size:22px}#ai-demo .ld-controls button{min-height:44px}#ai-demo .ld-output-bottom button{min-height:44px}}
@media(max-width:370px){#ai-demo h2{font-size:33px}#ai-demo .ld-scene-switch button{font-size:13px;gap:4px;padding-inline:2px}#ai-demo .ld-scene-icon{font-size:16px}#ai-demo .ld-stage-top{padding:20px 17px}#ai-demo .ld-task h3{font-size:20px}#ai-demo .ld-flow{padding:23px 15px 18px}#ai-demo .ld-step-symbol{width:36px;height:36px}#ai-demo .ld-steps::before{top:18px}#ai-demo .ld-step-name{font-size:11px}#ai-demo .ld-step-state{font-size:10px}#ai-demo .ld-detail-panel p{font-size:13px}#ai-demo .ld-controls{gap:7px}#ai-demo .ld-controls button{padding:10px 11px;font-size:12px}#ai-demo .ld-controls .ld-run{padding-inline:12px;gap:6px}#ai-demo .ld-output{padding:23px 17px}#ai-demo .ld-output-paper{padding:15px 12px 8px}}
@media(prefers-reduced-motion:reduce){#ai-demo *,#ai-demo *::before,#ai-demo *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}