:root{
  --journey-bg:#f7f1e8;
  --journey-paper:#fffdfc;
  --journey-ink:#24313d;
  --journey-muted:#66716f;
  --journey-sage:#44755d;
  --journey-blue:#415a77;
  --journey-orange:#b45f46;
  --journey-line:#ddd1c4;
  --journey-soft:#f2eadf;
  --journey-shadow:0 18px 48px rgba(60,48,38,.1);
}

*{box-sizing:border-box}
[hidden]{display:none!important}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
body.journey-segment-page{margin:0;color:var(--journey-ink);background:var(--journey-bg)}
body.journey-segment-page button,body.journey-segment-page input{font:inherit}
body.journey-segment-page button{touch-action:manipulation}
body.journey-segment-page .journey-main{width:min(1360px,calc(100% - 32px));margin:0 auto;padding:46px 0 80px}
body.journey-segment-page .tool-heading{max-width:1040px;margin:0 0 28px;padding:0}
body.journey-segment-page .tool-heading .eyebrow{margin:0 0 10px;color:var(--journey-sage);font-size:13px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
body.journey-segment-page .tool-heading h1{max-width:980px;margin:0;color:var(--journey-ink);font-size:clamp(34px,4vw,58px);line-height:1.06;letter-spacing:-.045em;text-wrap:balance}
body.journey-segment-page .tool-heading .lead{max-width:760px;margin:15px 0 0;color:var(--journey-muted);font-size:17px;font-weight:700;line-height:1.75}
body.journey-segment-page .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
body.journey-segment-page .chip{padding:8px 13px;border:1px solid var(--journey-line);border-radius:999px;background:rgba(255,253,252,.78);font-size:13px;font-weight:800}

body.journey-segment-page .journey-lab{display:grid;grid-template-columns:minmax(0,1fr) 338px;gap:18px;align-items:start}
body.journey-segment-page .journey-stage,body.journey-segment-page .journey-controls{min-width:0;border:1px solid var(--journey-line);border-radius:24px;background:var(--journey-paper);box-shadow:var(--journey-shadow)}
body.journey-segment-page .journey-stage{overflow:visible;padding:0 20px 22px}
body.journey-segment-page .stage-head{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:76px;margin:0 -20px;padding:14px 20px;border-bottom:1px solid var(--journey-line);border-radius:24px 24px 0 0;background:#faf6f0}
body.journey-segment-page .stage-kicker{margin:0 0 5px;color:var(--journey-sage);font-size:12px;font-weight:900;letter-spacing:.08em}
body.journey-segment-page .stage-title{margin:0;color:var(--journey-ink);font-size:20px;line-height:1.25}
body.journey-segment-page .stage-meta{margin:0;color:var(--journey-muted);font-size:13px;font-weight:800}
body.journey-segment-page .stage-actions{flex-wrap:wrap}
body.journey-segment-page .classroom-screen-toggle,body.journey-segment-page .fullscreen-button{min-width:44px;min-height:44px;border-color:var(--journey-line);color:var(--journey-blue);background:var(--journey-paper)}
body.journey-segment-page .classroom-screen-toggle{min-width:118px}

body.journey-segment-page .prompt-card{margin-top:18px;padding:15px 16px;border:1px solid var(--journey-line);border-radius:16px;background:#faf6f0}
body.journey-segment-page .prompt-card>div{display:flex;align-items:center;justify-content:space-between;gap:12px}
body.journey-segment-page .prompt-card>div span{color:var(--journey-sage);font-size:12px;font-weight:900;letter-spacing:.06em}
body.journey-segment-page .prompt-card>div strong{color:var(--journey-blue);font-size:13px}
body.journey-segment-page .prompt-card p{margin:9px 0 6px;font-size:16px;font-weight:800;line-height:1.7}
body.journey-segment-page .prompt-card small{display:block;color:var(--journey-muted);font-size:13px;line-height:1.6}

body.journey-segment-page .material-tray{margin-top:16px;padding:14px;border:1px solid var(--journey-line);border-radius:16px;background:#fff}
body.journey-segment-page .section-line{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
body.journey-segment-page .section-line h3{margin:0;font-size:15px}
body.journey-segment-page .section-line span{color:var(--journey-muted);font-size:11px;font-weight:700;text-align:right}
body.journey-segment-page .material-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;min-height:58px}
body.journey-segment-page .entity-card{display:flex;min-width:0;min-height:52px;padding:8px 10px;align-items:center;justify-content:flex-start;gap:9px;border:1px solid var(--journey-line);border-radius:12px;color:var(--journey-ink);background:var(--journey-paper);text-align:left;cursor:pointer;transition:opacity 160ms ease,transform 160ms ease,border-color 160ms ease,box-shadow 160ms ease}
body.journey-segment-page .entity-card:not(:disabled):hover{border-color:rgba(65,90,119,.48);transform:translateY(-1px)}
body.journey-segment-page .entity-card[aria-pressed="true"]{border-color:var(--journey-blue);box-shadow:0 0 0 3px rgba(65,90,119,.14)}
body.journey-segment-page .entity-card:disabled{opacity:.54;cursor:not-allowed}
body.journey-segment-page .entity-card i{display:grid;place-items:center;flex:0 0 30px;width:30px;height:30px;border:2px solid var(--journey-blue);border-radius:50%;color:var(--journey-blue);font-style:normal;font-weight:900}
body.journey-segment-page .entity-card[data-kind="arrow"] i{border:0;border-radius:8px;background:#eef2f5;font-size:21px}
body.journey-segment-page .entity-card[data-kind="route"] i{border-radius:7px;border-style:solid;color:var(--journey-orange);border-color:var(--journey-orange);font-size:13px}
body.journey-segment-page .entity-card[data-entity-key="unknown-route"] i{border-style:dashed;background:#fffaf5}
body.journey-segment-page .entity-card span{display:flex;min-width:0;flex-direction:column;gap:2px}
body.journey-segment-page .entity-card small{color:var(--journey-muted);font-size:10px;font-weight:800}
body.journey-segment-page .entity-card strong{overflow-wrap:anywhere;font-size:13px;line-height:1.25}

body.journey-segment-page .journey-board{width:min(860px,100%);min-height:320px;margin:16px auto 0;padding:14px 16px;border:1px solid #d8ccbf;border-radius:20px;background:linear-gradient(180deg,#fffdfc,#fbf7f1);box-shadow:inset 0 0 0 5px rgba(242,234,223,.54)}
body.journey-segment-page .board-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:10px}
body.journey-segment-page .board-head h3{margin:0;font-size:16px}
body.journey-segment-page .board-head p{margin:5px 0 0;color:var(--journey-muted);font-size:12px;line-height:1.5}
body.journey-segment-page .board-head>span{flex:0 0 auto;padding:6px 9px;border:1px dashed var(--journey-line);border-radius:999px;color:var(--journey-muted);font-size:11px;font-weight:900}
body.journey-segment-page .actor-track{position:relative;display:grid;grid-template-columns:104px minmax(200px,1fr) 210px;align-items:center;gap:10px;min-height:82px;padding:7px 0;border-top:1px dashed var(--journey-line)}
body.journey-segment-page .track-label{display:flex;min-width:0;flex-direction:column;gap:3px}
body.journey-segment-page .track-label strong{font-size:14px;overflow-wrap:anywhere}
body.journey-segment-page .track-label span{color:var(--journey-muted);font-size:11px}
body.journey-segment-page .start-slots{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,minmax(44px,1fr));gap:12px;align-items:center}
body.journey-segment-page .track-line{position:absolute;z-index:1;left:124px;right:230px;top:50%;height:8px;border:1px solid #b8c2ca;border-radius:999px;background:repeating-linear-gradient(90deg,#dbe3e7 0 18px,#eef2f3 18px 32px)}
body.journey-segment-page .arrow-slots{display:grid;grid-template-columns:repeat(2,minmax(68px,1fr));gap:7px}
body.journey-segment-page .board-slot{position:relative;z-index:2;min-width:44px;min-height:44px;border:1px solid var(--journey-line);color:var(--journey-ink);background:rgba(255,253,252,.95);cursor:pointer;transition:opacity 160ms ease,transform 160ms ease,border-color 160ms ease,box-shadow 160ms ease}
body.journey-segment-page .board-slot:hover{border-color:rgba(65,90,119,.5)}
body.journey-segment-page .board-slot.is-candidate{border-color:var(--journey-blue);box-shadow:0 0 0 3px rgba(65,90,119,.1)}
body.journey-segment-page .board-slot.is-preview{transform:scale(1.02);box-shadow:0 0 0 4px rgba(68,117,93,.13)}
body.journey-segment-page .board-slot.has-entity{border-color:rgba(68,117,93,.55);background:#f4f8f4}
body.journey-segment-page .start-slot{display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:11px;font-weight:900}
body.journey-segment-page .start-slot::after{position:absolute;inset:8px;border:2px solid var(--journey-blue);border-radius:50%;content:"";opacity:.48}
body.journey-segment-page .start-slot.has-entity{border-radius:14px}
body.journey-segment-page .start-slot.has-entity::after{display:none}
body.journey-segment-page .arrow-slot{display:grid;grid-template-columns:26px 1fr;place-items:center;border-radius:12px;padding:5px}
body.journey-segment-page .arrow-slot>span{color:var(--journey-orange);font-size:22px;font-weight:900}
body.journey-segment-page .arrow-slot>b{font-size:11px}
body.journey-segment-page .slot-entity{display:flex;align-items:center;justify-content:center;gap:5px;width:100%;font-size:11px;font-weight:900;line-height:1.25;text-align:center}
body.journey-segment-page .arrow-slot .slot-entity{flex-direction:column;gap:1px;white-space:nowrap;font-size:10px}
body.journey-segment-page .slot-entity[data-kind="route"]{flex-direction:column}
body.journey-segment-page .slot-entity em{font-style:normal;font-size:15px}

body.journey-segment-page .route-track{display:grid;grid-template-columns:minmax(0,1fr) 88px minmax(0,1fr);align-items:center;gap:10px;min-height:86px;margin-top:4px;padding-top:10px;border-top:2px solid #d8ccbf}
body.journey-segment-page .route-slot{display:flex;min-height:70px;flex-direction:column;align-items:center;justify-content:center;gap:4px;border-radius:14px;border-style:dashed}
body.journey-segment-page .route-slot::before{width:74%;height:5px;border-radius:999px;background:var(--journey-blue);content:"";opacity:.34}
body.journey-segment-page .route-slot>span{font-size:11px;font-weight:900}
body.journey-segment-page .route-slot>b{font-size:12px}
body.journey-segment-page .route-slot.has-entity[data-entity-key="known-route"]{border-style:solid}
body.journey-segment-page .route-slot.has-entity[data-entity-key="unknown-route"]{border-style:dashed;background:#fff9f2}
body.journey-segment-page .route-gap{display:flex;align-items:center;justify-content:center;gap:4px;color:var(--journey-muted);font-size:9px;font-weight:800;text-align:center}
body.journey-segment-page .route-gap i{width:12px;border-top:2px dotted var(--journey-line)}

body.journey-segment-page .step-copy{margin:14px 0 0;padding:11px 13px;border-left:4px solid var(--journey-sage);border-radius:0 10px 10px 0;color:var(--journey-ink);background:#f2f6f1;font-size:14px;font-weight:800;line-height:1.55}
body.journey-segment-page .settled-proof{margin-top:14px;padding:14px 16px;border:1px solid rgba(68,117,93,.42);border-radius:14px;background:#f3f7f3}
body.journey-segment-page .settled-proof h3{margin:0 0 8px;color:var(--journey-sage);font-size:15px}
body.journey-segment-page .settled-proof ol{display:grid;gap:6px;margin:0;padding-left:23px}
body.journey-segment-page .settled-proof li{font-size:13px;font-weight:700;line-height:1.5}
body.journey-segment-page .journey-status{min-height:48px;margin:13px 0 0;padding:12px 14px;border:1px solid var(--journey-line);border-radius:12px;color:var(--journey-muted);background:#faf6f0;font-size:13px;font-weight:800;line-height:1.55}

body.journey-segment-page .journey-controls{position:sticky;top:86px;padding:20px}
body.journey-segment-page .control-title span{color:var(--journey-sage);font-size:12px;font-weight:900;letter-spacing:.07em}
body.journey-segment-page .control-title h2{margin:5px 0 14px;color:var(--journey-ink);font-size:24px;line-height:1.15}
body.journey-segment-page .preset-fieldset{display:grid;gap:8px;margin:0;padding:0;border:0}
body.journey-segment-page .preset-fieldset label{position:relative;display:block;min-height:54px;cursor:pointer}
body.journey-segment-page .preset-fieldset input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}
body.journey-segment-page .preset-fieldset label>span{display:flex;min-height:54px;padding:9px 11px;flex-direction:column;justify-content:center;border:1px solid var(--journey-line);border-radius:12px;background:var(--journey-paper);transition:border-color 160ms ease,box-shadow 160ms ease,background 160ms ease}
body.journey-segment-page .preset-fieldset label>span strong{font-size:14px}
body.journey-segment-page .preset-fieldset label>span small{margin-top:2px;color:var(--journey-muted);font-size:11px;font-weight:700}
body.journey-segment-page .preset-fieldset input:checked+span{border-color:var(--journey-sage);background:#f2f6f1;box-shadow:0 0 0 3px rgba(68,117,93,.12)}
body.journey-segment-page .preset-fieldset input:focus-visible+span{outline:3px solid var(--journey-blue);outline-offset:3px}
body.journey-segment-page .instruction-card{margin-top:15px;padding:13px 14px;border:1px solid var(--journey-line);border-radius:14px;background:#faf6f0}
body.journey-segment-page .instruction-card h3{margin:0 0 7px;font-size:14px}
body.journey-segment-page .instruction-card ol{display:grid;gap:5px;margin:0;padding-left:20px;color:var(--journey-muted);font-size:12px;font-weight:700;line-height:1.5}
body.journey-segment-page .primary-action,body.journey-segment-page .secondary-actions button{min-height:46px;border-radius:12px;font-weight:900;cursor:pointer}
body.journey-segment-page .primary-action{width:100%;margin-top:15px;border:1px solid var(--journey-sage);color:#fff;background:var(--journey-sage)}
body.journey-segment-page .primary-action:disabled{opacity:.5;cursor:not-allowed}
body.journey-segment-page .secondary-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}
body.journey-segment-page .secondary-actions button{border:1px solid var(--journey-line);color:var(--journey-blue);background:var(--journey-paper)}
body.journey-segment-page .secondary-actions button:disabled{opacity:.45;cursor:not-allowed}
body.journey-segment-page .operation-hint,body.journey-segment-page .grade-boundary{margin:12px 0 0;color:var(--journey-muted);font-size:11px;font-weight:700;line-height:1.55}
body.journey-segment-page .grade-boundary{padding-top:11px;border-top:1px solid var(--journey-line)}
body.journey-segment-page .resource-strip .strip-button{display:inline-flex;min-height:44px;align-items:center;justify-content:center}

body.journey-segment-page button:focus-visible,body.journey-segment-page [tabindex="-1"]:focus-visible{outline:3px solid var(--journey-blue);outline-offset:3px}
body.xinyu-tool.journey-segment-page .journey-lab{color:var(--journey-ink)}
body.xinyu-tool.journey-segment-page .journey-lab .classroom-toolbar{border-color:var(--journey-line);color:var(--journey-ink);background:#faf6f0;box-shadow:none}
body.xinyu-tool.journey-segment-page .journey-lab .classroom-toolbar .stage-title{color:var(--journey-ink)}
body.xinyu-tool.journey-segment-page .journey-lab .classroom-toolbar .stage-meta{color:var(--journey-muted)}
body.xinyu-tool.journey-segment-page .journey-lab :is(#promptTitle,#trayTitle,#boardTitle,#actorALabel,#actorBLabel,#proofList,.material-tray,.journey-board){color:var(--journey-ink)}
body.xinyu-tool.journey-segment-page .journey-lab :is(#teacherNote,#trayHint,#boardDescription){color:var(--journey-muted)}
body.xinyu-tool.journey-segment-page .journey-lab #proofTitle{color:var(--journey-sage)}
body.xinyu-tool.journey-segment-page .journey-lab:fullscreen{display:grid;grid-template-columns:minmax(0,1fr) 338px;overflow:auto;padding:20px;color:var(--journey-ink);background:var(--journey-bg)}
body.journey-segment-page .journey-lab:fullscreen .journey-stage,body.journey-segment-page .journey-lab:fullscreen .journey-controls{max-height:none}

body.classroom-screen.journey-segment-page{background:var(--journey-bg)!important}
body.classroom-screen.journey-segment-page .journey-stage,body.classroom-screen.journey-segment-page .journey-controls{border:2px solid rgba(65,90,119,.38);color:var(--journey-ink);background:var(--journey-paper);box-shadow:var(--journey-shadow)}
body.classroom-screen.journey-segment-page .stage-head{border-color:var(--journey-line);color:var(--journey-ink);background:#f8f3ec}
body.classroom-screen.journey-segment-page .stage-title,body.classroom-screen.journey-segment-page .control-panel h2{color:var(--journey-ink)}
body.classroom-screen.journey-segment-page .stage-meta,body.classroom-screen.journey-segment-page .journey-controls label{color:var(--journey-muted)}
body.classroom-screen.journey-segment-page .classroom-screen-toggle[aria-pressed="true"]{color:#fff;background:var(--journey-blue)}
body.classroom-screen.journey-segment-page .entity-card,body.classroom-screen.journey-segment-page .board-slot{min-height:52px;font-size:15px}
body.classroom-screen.journey-segment-page .prompt-card p,body.classroom-screen.journey-segment-page .step-copy{font-size:18px}

@media(max-width:820px) and (min-width:621px){
  body.journey-segment-page .journey-main{width:748px;max-width:calc(100% - 20px);padding-top:34px}
  body.journey-segment-page .journey-lab{grid-template-columns:minmax(0,1fr) clamp(200px,35.94vw,276px);gap:12px}
  body.xinyu-tool.journey-segment-page .journey-lab:fullscreen{grid-template-columns:minmax(0,1fr) clamp(200px,35.94vw,276px)}
  body.journey-segment-page .journey-stage{padding:0 12px 16px}
  body.journey-segment-page .stage-head{margin:0 -12px;padding:12px}
  body.journey-segment-page .stage-actions .stage-meta{display:none}
  body.journey-segment-page .classroom-screen-toggle{min-width:44px;width:44px;padding:0}
  body.journey-segment-page .classroom-screen-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  body.journey-segment-page .journey-controls{padding:14px;top:76px}
  body.journey-segment-page .control-title h2{font-size:20px}
  body.journey-segment-page .material-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  body.journey-segment-page .actor-track{grid-template-columns:clamp(68px,10.94vw,84px) minmax(0,1fr) clamp(70px,11.7vw,96px);gap:3px}
  body.journey-segment-page .track-label strong{overflow-wrap:normal;word-break:keep-all;text-wrap:balance}
  body.journey-segment-page .track-line{left:calc(clamp(68px,10.94vw,84px) + 10px);right:calc(clamp(70px,11.7vw,96px) + 8px)}
  body.journey-segment-page .start-slots{gap:3px}
  body.journey-segment-page .start-slot.has-entity{padding:2px}
  body.journey-segment-page .start-slot.has-entity .slot-entity{flex-direction:column;gap:1px}
  body.journey-segment-page .start-slot.has-entity .slot-entity em{font-size:9px;line-height:1}
  body.journey-segment-page .start-slot.has-entity .slot-entity b{max-width:100%;overflow-wrap:normal;word-break:keep-all;white-space:normal;font-size:10px;line-height:1.15}
  body.journey-segment-page .arrow-slots{grid-template-columns:1fr;gap:4px}
  body.journey-segment-page .arrow-slot{grid-template-columns:22px 1fr}
  body.journey-segment-page .route-track{grid-template-columns:minmax(0,1fr) 54px minmax(0,1fr);gap:5px}
  body.journey-segment-page .route-gap span{display:none}
}

@media(max-width:620px){
  body.journey-segment-page .journey-main{width:calc(100% - 16px);padding:28px 0 64px}
  body.journey-segment-page .tool-heading{margin-bottom:18px;padding:0 4px}
  body.journey-segment-page .tool-heading h1{font-size:34px}
  body.journey-segment-page .journey-lab{grid-template-columns:1fr;gap:12px}
  body.xinyu-tool.journey-segment-page .journey-lab:fullscreen{grid-template-columns:1fr;align-content:start}
  body.journey-segment-page .journey-stage{grid-row:1;padding:0 8px 14px;border-radius:18px}
  body.journey-segment-page .journey-controls{position:static;grid-row:2;padding:16px;border-radius:18px}
  body.journey-segment-page .stage-head{align-items:flex-start;margin:0 -8px;padding:11px 10px;border-radius:18px 18px 0 0}
  body.journey-segment-page .stage-title{font-size:16px}
  body.journey-segment-page .stage-actions{flex:0 0 auto}
  body.journey-segment-page .stage-actions .stage-meta{display:none}
  body.journey-segment-page .classroom-screen-toggle{min-width:44px;width:44px;padding:0}
  body.journey-segment-page .classroom-screen-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  body.journey-segment-page .prompt-card{padding:12px}
  body.journey-segment-page .prompt-card p{font-size:14px}
  body.journey-segment-page .section-line{align-items:flex-start;flex-direction:column;gap:3px}
  body.journey-segment-page .section-line span{text-align:left}
  body.journey-segment-page .material-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  body.journey-segment-page .entity-card{min-height:58px;padding:7px}
  body.journey-segment-page .journey-board{min-height:470px;padding:11px}
  body.journey-segment-page .board-head{align-items:flex-start}
  body.journey-segment-page .board-head>span{padding:4px 7px}
  body.journey-segment-page .actor-track{grid-template-columns:62px minmax(0,1fr);grid-template-areas:"label starts" "arrows arrows";gap:7px;min-height:156px}
  body.journey-segment-page .track-label{grid-area:label}
  body.journey-segment-page .start-slots{grid-area:starts;gap:6px}
  body.journey-segment-page .arrow-slots{grid-area:arrows;grid-template-columns:1fr 1fr;gap:7px}
  body.journey-segment-page .track-line{left:70px;right:8px;top:48px}
  body.journey-segment-page .route-track{grid-template-columns:minmax(0,1fr) 40px minmax(0,1fr);gap:4px;min-height:116px}
  body.journey-segment-page .route-gap span{display:none}
  body.journey-segment-page .route-slot{min-height:82px;padding:5px}
  body.journey-segment-page .route-slot b{font-size:10px}
  body.journey-segment-page .preset-fieldset{grid-template-columns:1fr 1fr}
  body.journey-segment-page .preset-fieldset label,body.journey-segment-page .preset-fieldset label>span{min-height:66px}
}

@media(prefers-reduced-motion:reduce){
  body.journey-segment-page.workbench-tool-detail *,body.journey-segment-page.workbench-tool-detail *::before,body.journey-segment-page.workbench-tool-detail *::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}