/* =========================================================
   导游学霸 · Spatial Learning OS
   Visual direction derived from docs/design/learning-os-concept-v1.png
   ========================================================= */
:root{
  --space:#02060c;
  --space-2:#06101d;
  --panel:rgba(10,19,31,.72);
  --panel-solid:#0a1421;
  --panel-soft:rgba(255,255,255,.055);
  --hairline:rgba(177,207,255,.15);
  --hairline-strong:rgba(133,183,255,.28);
  --ink:#f4f8ff;
  --ink-2:#a8b6ca;
  --ink-3:#65758b;
  --electric:#2f7cff;
  --cyan:#33d4ff;
  --violet:#7567ff;
  --amber:#ffb64d;
  --red:#2f7cff;
  --blue:#2f7cff;
  --jade:#33d4ff;
  --gold:#ffb64d;
  --bg:var(--space);
  --bg2:var(--space-2);
  --card:var(--panel);
  --card2:var(--panel-soft);
  --line:var(--hairline);
  --t:var(--ink);
  --t2:var(--ink-2);
  --t3:var(--ink-3);
  --shadow:0 22px 80px rgba(0,0,0,.38);
  --shadow-lg:0 36px 120px rgba(0,0,0,.56);
}
.party-atlas.tourism .party-atlas-canvas{background:radial-gradient(circle at 16% 44%,rgba(56,135,208,.18),transparent 28%),linear-gradient(145deg,rgba(8,25,43,.96),rgba(4,10,18,.98))}.party-atlas.tourism .party-atlas-track:before{background:linear-gradient(90deg,rgba(105,190,255,.1),rgba(105,190,255,.72) 14%,rgba(105,190,255,.22) 88%,transparent);box-shadow:0 0 18px rgba(54,151,224,.28)}.party-atlas.tourism .party-node{border-color:rgba(108,187,245,.23);background:linear-gradient(160deg,rgba(18,53,77,.9),rgba(7,17,29,.94))}.party-atlas.tourism .party-node:before{border-color:#83cfff;background:#101f2c;box-shadow:0 0 0 5px rgba(96,184,255,.08),0 0 14px rgba(74,167,255,.44)}.party-atlas.tourism .party-node:hover,.party-atlas.tourism .party-node.on{border-color:rgba(115,202,255,.8);background:linear-gradient(160deg,rgba(24,81,119,.94),rgba(7,23,41,.96));box-shadow:0 14px 34px rgba(0,70,140,.24)}.party-atlas.tourism .party-node-year,.party-atlas.tourism .party-node small{color:#8ed6ff}.party-atlas.tourism .party-thread-note{border-left-color:#55b8ee;background:rgba(55,153,214,.08)}.party-atlas.tourism .party-thread-note span{color:#75c8f4}.party-atlas.tourism .party-confusions>span~span{border-color:rgba(108,187,245,.18);background:rgba(70,155,221,.06);color:#a9d1e8}.party-atlas.tourism .party-confusions i{color:#65bdf1}
html{background:var(--space);overflow-anchor:none}
html,body{
  height:auto;min-height:100%;
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","PingFang SC","Helvetica Neue",sans-serif;
  font-feature-settings:"kern" 1,"ss01" 1;
  -webkit-font-smoothing:antialiased;
}
body:not([data-view="redmap"]) :is(h1,h2,h3,h4){
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC",sans-serif;
}
body,body:not(.on-home),body:not(.on-home) main{
  background:
    radial-gradient(circle at 63% -10%,rgba(47,124,255,.13),transparent 34%),
    linear-gradient(180deg,#040a12 0%,#02060c 100%);
  color:var(--ink);
}
::selection{background:rgba(47,124,255,.72);color:#fff}
button{font:inherit}

/* shell */
.sidebar{
  width:208px;
  background:rgba(3,8,14,.86);
  border-right:1px solid rgba(151,190,255,.12);
  box-shadow:22px 0 70px rgba(0,0,0,.25);
  backdrop-filter:blur(30px) saturate(140%);
}
.sb-brand{height:78px;padding:18px;border-bottom-color:rgba(151,190,255,.1)}
.sb-brand-mark{
  width:40px;height:40px;border-radius:11px;
  background:linear-gradient(145deg,#4094ff,#0754e8);
  box-shadow:0 8px 28px rgba(27,105,255,.42),inset 0 1px rgba(255,255,255,.34);
  font-family:inherit;font-size:17px;
}
.sb-brand-name b{color:#fff;letter-spacing:.01em;font-weight:650}
.sb-progress{
  margin:17px 13px;padding:15px 12px;
  background:linear-gradient(150deg,rgba(255,255,255,.075),rgba(255,255,255,.025));
  border:1px solid rgba(151,190,255,.15);border-radius:14px;
  box-shadow:inset 0 1px rgba(255,255,255,.04);
}
.sb-progress-num b{color:#fff;-webkit-text-fill-color:initial;font-size:21px}
.sb-progress-bar{height:3px;background:rgba(255,255,255,.1)}.sb-progress-bar i{background:linear-gradient(90deg,var(--electric),var(--cyan));box-shadow:0 0 12px var(--electric)}
.sb-progress-label{color:var(--ink-3);letter-spacing:.08em}
.sb-nav{padding:8px 10px;gap:5px}
.sb-nav-item{min-height:50px;padding:13px 12px;border-radius:10px;color:#718096}
.sb-nav-item:hover{background:rgba(255,255,255,.055);color:#dce8fa}
.sb-nav-item.on{
  background:linear-gradient(100deg,rgba(47,124,255,.24),rgba(47,124,255,.08));
  border:1px solid rgba(82,150,255,.3);color:#fff;
  box-shadow:inset 0 1px rgba(255,255,255,.05),0 10px 28px rgba(0,64,180,.12);
}
.sb-nav-item.on::before{left:0;top:10px;bottom:10px;width:2px;background:#4a96ff;box-shadow:0 0 12px #4a96ff}
.sb-nav-item .sb-nav-ic{font-size:13px;font-variant-numeric:tabular-nums;color:#6f8098}
.sb-nav-item.on .sb-nav-ic{color:#66a7ff}
.sb-footer{border-top-color:rgba(151,190,255,.1)}
.sb-streak{color:var(--ink-3)}.sb-streak b{color:var(--amber);font-family:inherit;font-size:15px}
.sb-toggle{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);color:var(--ink-3)}
.workspace-bar{
  left:208px;height:64px;padding:0 34px;
  background:rgba(3,8,14,.74);border-bottom:1px solid rgba(151,190,255,.1);
  backdrop-filter:blur(30px) saturate(150%);
}
.workspace-bar span{font-family:inherit;font-size:9px;font-weight:700;color:#68a8ff;letter-spacing:.2em}
.workspace-bar b{color:#f2f7ff;font-size:13px;font-weight:600}.workspace-bar p{color:#5e7088}
main{margin-left:208px;background:transparent}
main.map-full{margin-left:208px}
body:not([data-view="map"]):not([data-view="redmap"]):not([data-view="guide"]):not([data-view="interview"]) main{padding-top:92px}
#view>*{animation:spatialRise .7s cubic-bezier(.2,.8,.2,1) both}
@keyframes spatialRise{from{opacity:0;transform:translateY(13px);filter:blur(5px)}to{opacity:1;transform:none;filter:none}}

/* home */
.learn-home{max-width:1320px}
.home-workspace-grid{grid-template-columns:minmax(0,1.75fr) 292px;gap:12px}
.learn-masthead{
  min-height:500px;padding:66px 45% 54px 48px;
  border:1px solid rgba(136,184,255,.16);border-radius:22px;
  background:
    linear-gradient(90deg,rgba(2,6,12,.98) 0%,rgba(2,6,12,.78) 44%,rgba(2,6,12,.05) 78%),
    url("../img/ui/learning-space-horizon-v1.png") center/cover no-repeat;
  box-shadow:inset 0 1px rgba(255,255,255,.06),0 30px 100px rgba(0,0,0,.35);
}
.learn-masthead:before{content:"SPATIAL LEARNING / 2026";color:#5f7490;font-family:inherit;font-size:9px}
.eyebrow,.route-kicker{color:#70acff;font-size:10px;letter-spacing:.19em}
.learn-masthead h1,.course-welcome h1,.chapter-stage-head h1,.route-intro h2,.chapter-check-panel h2,.relation-panel h2,.knowledge-reader h2,.simple-head h1,.view-head h1{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC",sans-serif;
  letter-spacing:-.045em;
}
.learn-masthead h1{max-width:630px;font-size:clamp(48px,5.7vw,82px);line-height:1.02;color:#fff;font-weight:720}
.learn-masthead h1 em{color:#70a9ff;background:linear-gradient(90deg,#fff,#5f9dff 58%,#6de6ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.learn-masthead p{max-width:540px;color:#8ea0b8;font-size:15px;line-height:1.8}
.home-command-panel{
  padding:23px;background:linear-gradient(160deg,rgba(15,28,44,.82),rgba(5,11,19,.88));
  border:1px solid rgba(142,189,255,.15);border-radius:22px;
  box-shadow:inset 0 1px rgba(255,255,255,.055),0 28px 80px rgba(0,0,0,.3);
  backdrop-filter:blur(28px);
}
.command-label{font-family:inherit;color:#6eaaff;border-bottom-color:rgba(151,190,255,.13)}
.home-command-panel .home-status{border-bottom-color:rgba(151,190,255,.13)}
.home-command-panel .home-status>b{font-family:inherit;font-size:58px;font-weight:250;color:#fff;letter-spacing:-.08em}
.home-command-panel .home-status>span{color:#7f91a8}
.continue-card{background:rgba(255,255,255,.055);color:#fff;border:1px solid rgba(151,190,255,.12);border-radius:12px}
.home-command-panel .continue-card span,.home-command-panel .continue-card em{color:#69a7ff}
.empty-command,.command-actions button{background:rgba(255,255,255,.035);border-color:rgba(151,190,255,.1);border-radius:11px}
.command-actions button:hover{background:rgba(47,124,255,.12);border-color:rgba(92,158,255,.3);transform:translateY(-2px)}
.command-actions span{font-family:inherit;color:#5b9cff}.command-actions em{color:#64778f}
.subject-section{padding-top:42px}.course-heading{border-color:rgba(151,190,255,.12)}
.section-heading span{color:#66a4ff}.section-heading h2{color:#f6f9ff;font-size:28px;letter-spacing:-.04em;font-family:inherit;font-weight:620}.course-heading p{color:#60728a}
.subject-grid{gap:10px}.subject-card{
  min-height:180px;padding:25px;background:linear-gradient(145deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid rgba(151,190,255,.12);border-radius:17px;color:#fff;
  box-shadow:inset 0 1px rgba(255,255,255,.04);
}
.subject-card:before{height:1px;background:linear-gradient(90deg,transparent,#4a92ff,transparent);opacity:.55}
.subject-card:hover{transform:translateY(-5px);border-color:rgba(92,158,255,.38);box-shadow:0 26px 80px rgba(0,64,180,.17),inset 0 1px rgba(255,255,255,.08)}
.subject-card h3{color:#f7faff;font-size:20px;letter-spacing:-.025em}.subject-card p{color:#8799b0}.subject-meta{color:#5f728a}.subject-enter,.subject-id{color:#65a6ff;border-color:rgba(101,166,255,.38)}
.subject-no{color:rgba(104,168,255,.11)}

/* course workspace */
.course-workspace{max-width:1420px}
.course-topline{
  min-height:58px;margin-bottom:11px;padding:0 18px;
  background:rgba(9,18,29,.72);border:1px solid rgba(151,190,255,.13);border-top:1px solid rgba(151,190,255,.2);
  border-radius:15px;color:#fff;backdrop-filter:blur(24px);box-shadow:inset 0 1px rgba(255,255,255,.04);
}
.course-topline>button{border-color:rgba(151,190,255,.14);color:#79afff}.course-topline span{font-family:inherit;color:#6ea8ff}.course-topline p{color:#61748d}
.course-shell{grid-template-columns:220px minmax(0,1fr) 230px;gap:11px}
.chapter-rail,.course-stage,.course-inspector{
  background:linear-gradient(155deg,rgba(13,25,40,.78),rgba(5,11,19,.82));
  border:1px solid rgba(151,190,255,.13);border-radius:17px;
  box-shadow:inset 0 1px rgba(255,255,255,.045),0 26px 70px rgba(0,0,0,.24);
  backdrop-filter:blur(26px) saturate(135%);
}
.chapter-rail-head{border-color:rgba(151,190,255,.1)}.chapter-rail-head span,.inspector-kicker{color:#70aaff;font-family:inherit}.chapter-rail-head b{color:#5d7088}
.chapter-rail-list button{border-radius:10px;color:#7e90a7}.chapter-rail-list button:hover{background:rgba(255,255,255,.045);color:#d6e1f1}
.chapter-rail-list button.on{
  color:#fff;background:linear-gradient(100deg,rgba(47,124,255,.23),rgba(47,124,255,.08));
  border-left-color:#4c95ff;box-shadow:inset 0 1px rgba(255,255,255,.04);
}
.chapter-rail-list button.on:after{content:"";width:5px;height:5px;border-radius:50%;background:#5a9dff;box-shadow:0 0 12px #5a9dff}
.chapter-rail-list i{font-family:inherit;color:#61758e}.chapter-rail-list em{color:#52647a}
.course-stage{min-height:690px;background-color:#030914;position:relative}
.course-stage:before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;
  background:linear-gradient(180deg,rgba(2,6,12,.08) 38%,rgba(2,6,12,.94) 82%),url("../img/ui/learning-space-horizon-v1.png") center 35%/cover no-repeat;
}
.course-stage>*{position:relative;z-index:1}
.course-inspector{background:linear-gradient(165deg,rgba(12,23,37,.88),rgba(5,11,18,.86))}
.course-inspector h3{font-family:inherit;color:#f5f8ff;letter-spacing:-.035em;font-size:18px;word-break:break-word}
.inspector-stats div{background:rgba(255,255,255,.04);border-color:rgba(151,190,255,.12)}.inspector-stats b{font-family:inherit;font-weight:300;color:#fff}.inspector-stats span{color:#60728a}
.inspector-map{background:linear-gradient(145deg,rgba(47,124,255,.14),rgba(51,212,255,.055));border:1px solid rgba(84,154,255,.22);border-radius:12px}.inspector-map span{color:#73abff}.inspector-map p{color:#71839a}
.course-inspector li{border-color:rgba(151,190,255,.09)}.course-inspector li i{border-color:rgba(151,190,255,.18);color:#64758c}.course-inspector li.on i{background:#2f7cff;border-color:#68a7ff;box-shadow:0 0 20px rgba(47,124,255,.5)}.course-inspector li span{color:#62748b}
.course-welcome h1{font-size:42px;color:#fff}.course-welcome>p{color:#8a9bb0}.framework-route{border-color:rgba(151,190,255,.12)}.framework-route article{border-color:rgba(151,190,255,.1);background:rgba(255,255,255,.018)}.framework-route i{font-family:inherit;color:#5f9fff}.framework-route span{color:#62758e}.course-welcome-list{background:rgba(47,124,255,.08);border-left-color:#4d96ff}.course-welcome-list span{color:#6b7e96}
.chapter-stage-head{padding:30px 30px 22px}.chapter-stage-head>span{color:#73adff}.chapter-stage-head h1{font-size:38px;color:#fff;font-weight:660}.chapter-stage-head p{max-width:790px;color:#8394a9}
.chapter-tabs{
  margin:0 25px;border:1px solid rgba(151,190,255,.14);border-radius:14px;overflow:hidden;
  background:rgba(5,12,21,.62);backdrop-filter:blur(18px);
}
.chapter-tabs button{height:50px;border-color:rgba(151,190,255,.1);color:#71849b}.chapter-tabs i{font-family:inherit;color:#53667d}.chapter-tabs button:hover{color:#dce7f7;background:rgba(255,255,255,.03)}
.chapter-tabs button.on{background:rgba(47,124,255,.09);box-shadow:inset 0 -2px #4e96ff;color:#fff}.chapter-tabs button.on i{color:#6ca8ff}
.chapter-tab-panel{min-height:500px;padding:28px 30px 34px}

/* product-story learning path */
.learning-route-panel{position:relative;min-height:480px;padding-top:4px}
.route-intro{text-align:center}.route-intro span{color:#70a9ff}.route-intro h2{margin-top:9px;color:#fff;font-size:29px;font-weight:620}.route-intro p{max-width:660px;margin:0 auto;color:#6e829b}
.route-cards{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:30px}
.route-cards:before{
  content:"";position:absolute;left:16%;right:16%;top:82px;height:1px;
  background:linear-gradient(90deg,transparent,#2f7cff 15%,#7567ff 50%,#33d4ff 85%,transparent);
  box-shadow:0 0 20px rgba(47,124,255,.75);
}
.route-cards button{
  min-height:294px;padding:178px 16px 16px;display:block;text-align:center;
  border:0;background:transparent;color:#fff;position:relative;overflow:visible;
}
.route-cards button:hover{transform:translateY(-7px);border:0;background:transparent}
.route-cards button:before,.route-cards button:after{content:"";position:absolute;left:50%;top:82px;transform:translate(-50%,-50%);border-radius:50%}
.route-cards button:before{
  width:132px;height:132px;border:1px solid rgba(101,166,255,.72);
  background:radial-gradient(circle,rgba(47,124,255,.23),rgba(47,124,255,.04) 56%,transparent 58%);
  box-shadow:0 0 0 9px rgba(47,124,255,.05),0 0 45px rgba(47,124,255,.28),inset 0 0 28px rgba(47,124,255,.2);
}
.route-cards button:nth-child(2):before{border-color:rgba(132,110,255,.75);box-shadow:0 0 0 9px rgba(117,103,255,.05),0 0 45px rgba(117,103,255,.3),inset 0 0 28px rgba(117,103,255,.2)}
.route-cards button:nth-child(3):before{border-color:rgba(51,212,255,.72);box-shadow:0 0 0 9px rgba(51,212,255,.05),0 0 45px rgba(51,212,255,.26),inset 0 0 28px rgba(51,212,255,.18)}
.route-glyph{position:absolute;z-index:2;left:50%;top:82px;transform:translate(-50%,-50%);width:58px;height:58px;display:grid;place-items:center;color:#b9d8ff}
.route-glyph svg{width:58px;height:58px;fill:none;stroke:currentColor;stroke-width:1.6;filter:drop-shadow(0 0 9px rgba(90,162,255,.85))}
.route-cards i{display:block;font-family:inherit;font-size:12px;color:#66a5ff}.route-cards button:nth-child(2) i{color:#8a7cff}.route-cards button:nth-child(3) i{color:#4edcff}
.route-cards span{display:block;margin-top:7px;font-family:inherit;color:#60758f}.route-cards b{display:block;margin-top:7px;font-size:17px;letter-spacing:-.02em}.route-cards p{max-width:220px;margin:7px auto 0;color:#657990;line-height:1.6}.route-cards em{display:block;margin-top:13px;color:#7cb1ff}

/* knowledge / relationship / check */
.knowledge-panel{grid-template-columns:190px minmax(0,1fr)}.knowledge-index button{background:rgba(255,255,255,.025);border-color:rgba(151,190,255,.12);color:#889ab0}.knowledge-index button.on{background:linear-gradient(100deg,rgba(47,124,255,.2),rgba(47,124,255,.06));border-color:rgba(92,158,255,.34);color:#fff}.knowledge-index i{font-family:inherit;color:#6aa7ff}.knowledge-reader{background:rgba(4,11,20,.64);border:1px solid rgba(151,190,255,.12);border-radius:17px;backdrop-filter:blur(18px)}.reader-kicker{font-family:inherit;color:#73acff}.reader-lead{color:#8396ad}.reader-block{border-color:rgba(151,190,255,.12)}.reader-block span{color:#6da9ff}.reader-trap{border-color:rgba(230,156,106,.26);background:rgba(210,117,72,.07)}.reader-trap span{color:#e0a071}.reader-links button{border-color:rgba(151,190,255,.16);background:rgba(47,124,255,.08)}
.knowledge-atlas{position:relative;min-height:560px}.atlas-toolbar{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:18px}.atlas-kicker{display:block;color:#6ca8ff;font:10px/1.2 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.18em}.atlas-toolbar h2{margin:8px 0 6px;color:#f7fbff;font:650 29px/1.1 -apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC",sans-serif;letter-spacing:-.045em}.atlas-toolbar p{max-width:520px;margin:0;color:#7b8ea7;font-size:12px;line-height:1.65}.atlas-layers{display:flex;gap:4px;padding:4px;border:1px solid rgba(151,190,255,.14);border-radius:11px;background:rgba(3,10,18,.7)}.atlas-layers button{min-width:54px;padding:7px 10px;border-radius:7px;color:#71839b;font-size:10px}.atlas-layers button:hover{color:#dce9fb;background:rgba(255,255,255,.05)}.atlas-layers button.on{color:#fff;background:linear-gradient(135deg,rgba(65,145,255,.68),rgba(36,91,214,.55));box-shadow:0 5px 18px rgba(32,113,255,.22)}
.atlas-canvas{position:relative;height:480px;overflow:hidden;border:1px solid rgba(113,170,255,.2);border-radius:20px;background:radial-gradient(circle at 50% 50%,rgba(35,102,205,.2),transparent 27%),linear-gradient(145deg,rgba(6,18,33,.94),rgba(2,7,14,.98));box-shadow:inset 0 1px rgba(255,255,255,.07),inset 0 0 90px rgba(25,99,216,.1),0 24px 70px rgba(0,0,0,.2)}.atlas-grid{position:absolute;inset:0;opacity:.45;background-image:linear-gradient(rgba(126,180,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(126,180,255,.055) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(circle at center,#000 0 48%,transparent 82%)}.atlas-canvas:before,.atlas-canvas:after{content:"";position:absolute;left:50%;top:50%;border:1px solid rgba(101,165,255,.16);border-radius:50%;transform:translate(-50%,-50%);pointer-events:none}.atlas-canvas:before{width:54%;height:70%}.atlas-canvas:after{width:31%;height:40%;border-color:rgba(101,165,255,.11)}
.atlas-links{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}.atlas-link-line{stroke:rgba(91,158,255,.32);stroke-width:.28;vector-effect:non-scaling-stroke;stroke-dasharray:5 5;animation:atlasDash 18s linear infinite}.atlas-link-line.on{stroke:#63b4ff;stroke-width:.7;filter:drop-shadow(0 0 4px rgba(76,158,255,.8));stroke-dasharray:none}@keyframes atlasDash{to{stroke-dashoffset:-100}}
.atlas-core{position:absolute;left:50%;top:50%;z-index:3;width:184px;height:126px;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:translate(-50%,-50%);border:1px solid rgba(163,214,255,.55);border-radius:22px;background:linear-gradient(150deg,rgba(215,239,255,.98),rgba(105,170,236,.92));color:#071629;box-shadow:0 0 0 7px rgba(71,151,255,.08),0 0 60px rgba(64,155,255,.36),inset 0 1px rgba(255,255,255,.9)}.atlas-core:before{content:"";position:absolute;inset:7px;border:1px solid rgba(9,65,137,.2);border-radius:16px}.atlas-core span{position:relative;font:10px/1.2 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.17em;color:#1456a1}.atlas-core b{position:relative;max-width:150px;margin-top:7px;text-align:center;font:650 18px/1.25 -apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC",sans-serif;letter-spacing:-.035em}.atlas-core em{position:relative;margin-top:7px;color:#2d6094;font-size:10px;font-style:normal}
.atlas-node{position:absolute;left:var(--x);top:var(--y);z-index:4;width:164px;min-height:72px;padding:12px 12px 11px;display:grid;grid-template-columns:24px 1fr;gap:8px;text-align:left;transform:translate(-50%,-50%);border:1px solid rgba(144,195,255,.23);border-radius:14px;background:linear-gradient(145deg,rgba(17,39,64,.9),rgba(5,16,29,.92));color:#eef6ff;box-shadow:0 12px 35px rgba(0,0,0,.25),inset 0 1px rgba(255,255,255,.06);transition:transform .24s,background .24s,border-color .24s,box-shadow .24s}.atlas-node:hover{transform:translate(-50%,-54%);border-color:rgba(107,183,255,.72);background:linear-gradient(145deg,rgba(31,74,121,.94),rgba(7,25,46,.95));box-shadow:0 16px 42px rgba(0,70,180,.25),0 0 24px rgba(61,153,255,.14)}.atlas-node.on{border-color:#65b4ff;background:linear-gradient(145deg,rgba(38,105,177,.94),rgba(8,31,60,.96));box-shadow:0 0 0 2px rgba(85,166,255,.16),0 0 32px rgba(50,140,255,.28)}.atlas-node i{display:grid;place-items:center;width:23px;height:23px;border:1px solid rgba(111,177,255,.5);border-radius:7px;color:#73baff;font:10px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;font-style:normal}.atlas-node b{display:block;overflow:hidden;color:#f5faff;font-size:12px;line-height:1.3;text-overflow:ellipsis;white-space:nowrap}.atlas-node span{display:block;overflow:hidden;margin-top:5px;color:#7d9abb;font-size:9px;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}.knowledge-atlas[data-layer="questions"] .atlas-node span{color:#71caff;font-size:12px;font-weight:600}.knowledge-atlas[data-layer="mastery"] .atlas-node span{color:#d7ad6e}.knowledge-atlas[data-layer="mastery"] .atlas-node i{border-color:rgba(218,175,107,.6);color:#e2b776}
.atlas-hint{position:absolute;left:18px;bottom:16px;display:grid;gap:3px;color:#657c99}.atlas-hint span{font:9px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.17em;color:#6baaff}.atlas-hint b{font-size:11px;font-weight:500;color:#b1c5de}.atlas-hint em{font-size:9px;font-style:normal}.atlas-footer{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:12px}.atlas-legend{display:flex;align-items:center;flex-wrap:wrap;gap:13px;color:#6b829e;font-size:9px}.atlas-legend span{display:inline-flex;align-items:center;gap:5px}.atlas-legend em{margin-left:5px;padding-left:12px;border-left:1px solid rgba(151,190,255,.15);color:#8aa3bf;font-style:normal}.atlas-legend .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#7a9bbf;box-shadow:0 0 8px rgba(130,180,255,.35)}.atlas-legend .dot.core{background:#c6eaff}.atlas-legend .dot.active{background:#62b7ff;box-shadow:0 0 9px #62b7ff}.atlas-utility{min-width:220px;padding:10px 12px;text-align:left;border:1px solid rgba(105,174,255,.2);border-radius:11px;background:rgba(47,124,255,.07);color:#fff}.atlas-utility:hover{background:rgba(47,124,255,.15);border-color:rgba(105,174,255,.5)}.atlas-utility span{display:block;color:#70adff;font:8px/1.1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.16em}.atlas-utility b{display:block;margin-top:4px;font-size:11px}.atlas-utility em{display:block;margin-top:3px;color:#6e87a4;font-size:9px;font-style:normal}
.inspector-node-actions{display:grid;gap:7px;margin:12px 0 16px}.inspector-action{width:100%;padding:9px 10px;text-align:left;border:1px solid rgba(127,179,243,.2);border-radius:9px;background:rgba(255,255,255,.035);color:#8eb8e8;font-size:10px}.inspector-action:hover{background:rgba(47,124,255,.13);border-color:rgba(104,177,255,.5);color:#ddebff}.inspector-action.primary{background:linear-gradient(135deg,rgba(64,145,255,.8),rgba(31,87,206,.8));border-color:rgba(136,205,255,.42);color:#fff;box-shadow:0 8px 20px rgba(31,104,230,.2)}
.party-atlas-canvas{position:relative;overflow:hidden;border:1px solid rgba(113,170,255,.2);border-radius:20px;background:radial-gradient(circle at 16% 44%,rgba(180,72,57,.16),transparent 28%),linear-gradient(145deg,rgba(20,18,27,.96),rgba(5,10,18,.98));box-shadow:inset 0 1px rgba(255,255,255,.06),inset 0 0 80px rgba(149,42,40,.08)}.party-track-label{display:flex;align-items:baseline;gap:10px;padding:20px 20px 10px}.party-track-label span{font:9px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.18em;color:#d77b6b}.party-track-label b{font-size:14px;color:#f3e9e5}.party-track-label em{margin-left:auto;color:#7d8290;font-size:9px;font-style:normal}.party-atlas-track{position:relative;display:flex;gap:10px;overflow-x:auto;padding:24px 20px 30px;scroll-snap-type:x proximity;scrollbar-color:rgba(210,103,88,.5) transparent}.party-atlas-track:before{content:"";position:absolute;left:20px;right:20px;top:59px;height:1px;background:linear-gradient(90deg,rgba(224,129,105,.1),rgba(224,129,105,.7) 14%,rgba(224,129,105,.22) 88%,transparent);box-shadow:0 0 18px rgba(210,83,68,.28)}.party-node{position:relative;z-index:2;flex:0 0 146px;min-height:146px;padding:12px;text-align:left;scroll-snap-align:start;border:1px solid rgba(227,137,111,.22);border-radius:13px;background:linear-gradient(160deg,rgba(64,34,39,.86),rgba(14,20,30,.94));color:#fff;transition:transform .22s,border-color .22s,background .22s,box-shadow .22s}.party-node:before{content:"";position:absolute;left:50%;top:31px;width:8px;height:8px;transform:translate(-50%,-50%);border:2px solid #e39a7d;border-radius:50%;background:#231a22;box-shadow:0 0 0 5px rgba(224,129,105,.08),0 0 14px rgba(225,101,84,.44)}.party-node:hover{transform:translateY(-5px);border-color:rgba(241,159,130,.8);background:linear-gradient(160deg,rgba(108,49,48,.94),rgba(18,27,39,.96));box-shadow:0 14px 34px rgba(101,35,35,.28)}.party-node.on{border-color:#efaa8a;background:linear-gradient(160deg,rgba(125,56,51,.96),rgba(21,30,43,.98));box-shadow:0 0 0 2px rgba(239,158,130,.12),0 0 30px rgba(211,78,60,.24)}.party-node-year{display:block;color:#e6a287;font:10px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.09em}.party-node b{display:block;margin-top:26px;font-size:13px;line-height:1.25}.party-node em{display:block;margin-top:8px;overflow:hidden;color:#ac8d8d;font-size:9px;font-style:normal;text-overflow:ellipsis;white-space:nowrap}.party-node small{display:block;margin-top:10px;color:#eabda5;font-size:10px}.party-axis{display:flex;align-items:center;gap:8px;padding:0 20px 17px;color:#9d8490;font:9px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif}.party-axis span{height:1px;flex:1;background:linear-gradient(90deg,rgba(224,129,105,.45),rgba(224,129,105,.08))}.party-thread-note{margin:0 20px 18px;padding:10px 12px;border-left:2px solid #d87968;background:rgba(214,91,72,.07)}.party-thread-note span{display:block;color:#d77b6b;font:9px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.12em}.party-thread-note b{display:block;margin-top:5px;color:#d7c8c4;font-size:11px;font-weight:500}.party-confusions{display:flex;align-items:center;flex-wrap:wrap;gap:7px}.party-confusions>span{width:100%;color:#8a94a8;font:9px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.1em}.party-confusions>span~span{display:grid;grid-template-columns:auto 12px auto;align-items:center;gap:4px;padding:7px 8px;border:1px solid rgba(219,135,111,.16);border-radius:8px;background:rgba(219,135,111,.05);color:#cdaaa0}.party-confusions b{font-size:9px;font-weight:500}.party-confusions i{color:#d77b6b;font-style:normal}.party-confusions em{grid-column:1/-1;color:#927c88;font-size:8px;font-style:normal}.party-atlas-footer{align-items:flex-start}
.relation-panel header>div>span{font-family:inherit;color:#6ca8ff}.relation-panel header p{color:#72859c}.relation-canvas{background:rgba(3,10,18,.66);border:1px solid rgba(151,190,255,.12);border-radius:18px}.relation-canvas:before,.relation-canvas:after{border-color:rgba(86,150,255,.15)}.relation-center{background:linear-gradient(145deg,#eaf4ff,#b9d6ff);color:#06101d;box-shadow:0 0 70px rgba(64,140,255,.34)}.relation-center span{font-family:inherit;color:#195fc8}.relation-center b{font-family:inherit}.relation-node{background:rgba(15,29,45,.78);border-color:rgba(151,190,255,.2);border-radius:11px}.relation-node:hover,.relation-node.on{background:rgba(47,124,255,.28);border-color:#5c9dff;box-shadow:0 0 28px rgba(47,124,255,.25)}.relation-node i{font-family:inherit;color:#71adff}.map-rule{background:rgba(255,255,255,.025);border-color:rgba(151,190,255,.11);border-radius:10px}.map-rule span{color:#677a92}.map-rule button{color:#6ca8ff}
.chapter-check-panel header{border-color:rgba(151,190,255,.11)}.chapter-check-panel header span{color:#70aaff}.check-modes article{background:rgba(255,255,255,.025);border-color:rgba(151,190,255,.12);border-radius:13px}.check-modes i{font-family:inherit;color:#67a5ff}.check-modes span{color:#687b92}.check-modes button{background:linear-gradient(135deg,#3d8cff,#1762e8);box-shadow:0 8px 24px rgba(24,98,232,.28)}

/* history knowledge matrix */
.history-matrix-shell{overflow:hidden;border:1px solid rgba(175,151,95,.23);border-radius:20px;background:radial-gradient(circle at 34% 10%,rgba(180,140,67,.13),transparent 30%),linear-gradient(145deg,rgba(25,23,20,.96),rgba(6,11,17,.98));box-shadow:inset 0 1px rgba(255,255,255,.055),inset 0 0 90px rgba(147,110,39,.07)}.history-matrix-scroll{min-width:1050px;overflow-x:auto;padding:18px;scrollbar-color:rgba(191,154,84,.48) transparent}.history-era-row,.history-lane-row{display:grid;grid-template-columns:125px repeat(7,minmax(125px,1fr));gap:7px}.history-era-row{position:sticky;top:0;z-index:4;margin-bottom:7px}.history-era-row>span,.history-era-row>b{min-height:38px;display:grid;place-items:center;border:1px solid rgba(211,182,122,.13);border-radius:9px;background:rgba(14,16,18,.9);color:#a49272;font:9px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;letter-spacing:.12em}.history-era-row>b{color:#e3c78f;font-size:10px}.history-lane-row{align-items:stretch;margin-top:7px}.history-lane-row>header{min-height:112px;padding:12px;display:flex;flex-direction:column;justify-content:space-between;border:1px solid rgba(211,182,122,.13);border-radius:10px;background:linear-gradient(150deg,rgba(84,66,36,.32),rgba(20,21,21,.78));color:#d8c49b}.history-lane-row>header i{color:#9d8254;font:9px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif;font-style:normal}.history-lane-row>header b{font-size:11px;line-height:1.4}.history-era-cell{min-height:112px;padding:5px;border:1px dashed rgba(211,182,122,.08);border-radius:10px;background:rgba(255,255,255,.012)}.history-era-cell.has-node{display:grid;gap:5px;border-style:solid;border-color:rgba(211,182,122,.12);background:rgba(161,127,63,.035)}.history-node{min-width:0;padding:10px;text-align:left;border:1px solid rgba(213,177,104,.2);border-radius:9px;background:linear-gradient(145deg,rgba(63,51,32,.72),rgba(17,19,20,.88));color:#f2eadb;box-shadow:inset 0 1px rgba(255,255,255,.04);transition:transform .2s,border-color .2s,background .2s,box-shadow .2s}.history-node:hover{transform:translateY(-2px);border-color:rgba(232,195,117,.64);background:linear-gradient(145deg,rgba(93,70,35,.78),rgba(21,24,27,.92))}.history-node.on{border-color:#e5bd6f;background:linear-gradient(145deg,rgba(110,79,34,.86),rgba(24,27,31,.95));box-shadow:0 0 0 2px rgba(225,183,102,.1),0 0 22px rgba(189,133,40,.2)}.history-node span{display:block;color:#c99f5a;font:9px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif}.history-node b{display:block;margin-top:7px;overflow:hidden;color:#fff8ea;font-size:11px;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}.history-node em{display:-webkit-box;margin-top:6px;overflow:hidden;color:#8f887a;font-size:8px;line-height:1.45;font-style:normal;-webkit-box-orient:vertical;-webkit-line-clamp:2}.history-atlas[data-layer="questions"] .history-node span{color:#ffd27e;font-size:11px;font-weight:650}.history-atlas[data-layer="mastery"] .history-node span{color:#c7a4e2}.history-atlas-footer{margin-top:13px}.history-atlas-footer .party-confusions{width:100%}

.history-matrix-shell{overflow-x:auto}

/* other primary pages */
.view-head{border-color:rgba(151,190,255,.11)}.view-head h1{color:#fff}.view-head p{color:#7d90a8}.page-kicker{font-family:inherit;color:#6ca8ff}
.quiz-page,.simple-page,.profile-page{color:#fff}.qs-item,.qc-item,.profile-page .card,.visual-tool-grid button,.practice-card{background:rgba(255,255,255,.04);border-color:rgba(151,190,255,.12);color:#fff;box-shadow:inset 0 1px rgba(255,255,255,.035)}
.qs-item:hover,.qc-item:hover,.visual-tool-grid button:hover{background:rgba(47,124,255,.09);border-color:rgba(92,158,255,.36)}.qs-sub,.visual-tool-grid span{color:#71849a}.qs-count{color:#74acff;background:rgba(47,124,255,.12)}.memory-intro{background:linear-gradient(135deg,rgba(47,124,255,.2),rgba(117,103,255,.11));border-color:rgba(92,158,255,.3)}.memory-intro .qs-sub{color:#8599b2}
.simple-head h1,.visual-tool-grid b{color:#fff}.simple-head p{color:#7d90a7}.simple-head>span{color:#6aa7ff}.visual-tool-grid i{background:rgba(47,124,255,.11);color:#79b1ff}.visual-tool-grid em{color:#6da9ff}
.profile-page .big-num{color:#fff;-webkit-text-fill-color:initial;background:none}.profile-page .bar{background:rgba(255,255,255,.08)}.profile-page .bar i{background:linear-gradient(90deg,var(--electric),var(--cyan))}
.quiz-context-bar{background:rgba(255,255,255,.04);border-color:rgba(151,190,255,.12);border-left-color:#4b95ff}.quiz-context-bar button{color:#72acff}.quiz-context-bar span,.quiz-context-bar em{color:#60748d}.quiz-context-bar b{color:#fff}
.practice-top h2{color:#f3f7ff}.practice-mode{color:#69a8ff}.practice-score{color:#71849b}.practice-score b{color:#f3f7ff}
.practice-stage .quiz-q{color:#fff}.practice-stage .opt{background:rgba(255,255,255,.035);border-color:rgba(151,190,255,.13);color:#dbe7f7}.practice-stage .opt:hover{background:rgba(47,124,255,.1);border-color:#4b94ff}.practice-stage .opt.selected{background:rgba(47,124,255,.16);border-color:#5ba0ff}.practice-progress{background:rgba(255,255,255,.08)}.practice-progress i{background:linear-gradient(90deg,var(--electric),var(--cyan))}
.question-context{background:linear-gradient(150deg,rgba(13,29,47,.94),rgba(5,14,25,.94));border:1px solid rgba(151,190,255,.13);box-shadow:inset 0 1px rgba(255,255,255,.04)}.quiz-exp{background:rgba(255,255,255,.045);color:#a3b4c8;border-left-color:#4d96ff}
.welcome-overlay{background:rgba(0,4,10,.82)}.welcome-card{background:rgba(8,17,28,.93);border-color:rgba(151,190,255,.16);color:#fff}.welcome-card h1{color:#fff}.wc-feat{background:rgba(255,255,255,.035);border-color:rgba(151,190,255,.11)}.wc-icon{color:#6ca8ff;border-color:rgba(108,168,255,.46)}.wc-feat-ic{color:#6ca8ff;border-color:rgba(151,190,255,.18)}

@media(max-width:1100px){
  .course-shell{grid-template-columns:190px minmax(0,1fr)}.course-inspector{grid-column:1/-1;display:grid;grid-template-columns:170px minmax(0,1fr) 220px;gap:12px}.course-inspector .inspector-kicker,.course-inspector h3,.course-inspector .inspector-stats{grid-column:1}.course-inspector .inspector-map{grid-column:2;grid-row:1/4}.course-inspector .inspector-node-actions{grid-column:3;grid-row:1/4;margin:0}.course-inspector ol{display:none}
}
@media(max-width:900px){
  .workspace-bar{left:0}.course-topline{grid-template-columns:auto 1fr}.course-shell{grid-template-columns:185px minmax(0,1fr)}
}
@media(max-width:620px){
  .workspace-bar{padding-left:72px}.home-workspace-grid{grid-template-columns:1fr}
  .learn-masthead{min-height:570px;padding:36px 24px;background-image:linear-gradient(180deg,rgba(2,6,12,.98) 0%,rgba(2,6,12,.7) 48%,rgba(2,6,12,.08) 75%),url("../img/ui/learning-space-horizon-v1.png");background-position:center bottom;background-size:auto 72%}
  .learn-masthead h1{font-size:48px}.home-command-panel{border-radius:18px}
  .subject-grid{grid-template-columns:1fr}.course-shell{grid-template-columns:1fr}.chapter-rail{background:rgba(7,15,25,.9)}
  .chapter-stage-head h1{font-size:31px}.chapter-tabs{margin:0 12px}.chapter-tab-panel{padding:23px 15px}
  .route-intro{text-align:left}.route-intro p{margin:0}.route-cards{grid-template-columns:1fr;gap:4px}.route-cards:before{left:51px;right:auto;top:40px;bottom:40px;width:1px;height:auto;background:linear-gradient(#2f7cff,#7567ff,#33d4ff)}
  .route-cards button{min-height:150px;padding:34px 12px 24px 130px;text-align:left}.route-cards button:before,.route-cards button:after{left:64px;top:74px}.route-cards button:before{width:94px;height:94px}.route-glyph{left:64px;top:74px;width:42px;height:42px}.route-glyph svg{width:42px;height:42px}.route-cards p{margin:7px 0 0}.route-cards em{margin-top:8px}
  .knowledge-panel{grid-template-columns:1fr}.relation-panel header{grid-template-columns:1fr}.relation-canvas{height:410px}
  .course-inspector{display:block}.course-inspector ol{display:grid}.atlas-toolbar{display:grid}.atlas-layers{width:max-content}.atlas-canvas{height:520px;border-radius:16px}.atlas-core{width:138px;height:108px;top:48%}.atlas-core b{max-width:118px;font-size:14px}.atlas-node{width:124px;min-height:68px;padding:10px 8px;grid-template-columns:19px 1fr;gap:5px}.atlas-node i{width:19px;height:19px}.atlas-node b{font-size:10px}.atlas-node span{font-size:8px}.atlas-canvas:before{width:78%;height:66%}.atlas-canvas:after{width:48%;height:34%}.atlas-footer{display:grid}.atlas-utility{width:100%;min-width:0}.atlas-hint{display:none}.party-atlas-canvas{border-radius:16px}.party-track-label{display:block;padding:16px 15px 7px}.party-track-label b{display:block;margin-top:7px}.party-track-label em{display:block;margin-top:5px}.party-atlas-track{padding:22px 15px 26px}.party-atlas-track:before{left:15px;right:15px}.party-node{flex-basis:136px;min-height:136px}.party-axis{padding-left:15px;padding-right:15px}.party-thread-note{margin-left:15px;margin-right:15px}.party-confusions{display:grid}.party-atlas-footer{gap:12px}
}