:root{
  --page:#f3f7fc;
  --card:rgba(255,255,255,.94);
  --line:#dce5f0;
  --ink:#102a55;
  --muted:#667995;
  --blue:#1760ef;
  --blue2:#0e47c9;
  --cyan:#1a9bb3;
  --shadow:0 18px 50px rgba(24,55,102,.10);
  --soft-shadow:0 8px 22px rgba(24,55,102,.08);
  --radius:24px;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at 50% -15%,#fff 0,#f7faff 36%,var(--page) 85%);overflow:hidden}
button,input{font:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.app{height:100%;display:grid;grid-template-rows:80px 1fr}
.topbar{display:grid;grid-template-columns:minmax(330px,1fr) minmax(320px,560px) minmax(330px,1fr);align-items:center;gap:24px;padding:12px 20px;background:rgba(255,255,255,.9);border-bottom:1px solid var(--line);backdrop-filter:blur(16px);z-index:20}
.brand{display:flex;align-items:center;gap:14px;color:var(--ink);text-decoration:none;min-width:0}
.brand__logo{width:52px;height:52px;display:grid;place-items:center;border-radius:15px;color:#fff;background:linear-gradient(135deg,#0d54e8,#092e8e);box-shadow:0 10px 24px rgba(18,73,196,.28)}
.brand__logo svg{width:31px;height:31px}.brand__logo circle{fill:currentColor;stroke:none}
.brand__title{font-weight:850;font-size:22px;letter-spacing:-.025em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.search{height:52px;display:flex;align-items:center;gap:11px;padding:0 15px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--soft-shadow)}
.search svg{width:22px;color:#7386a5}.search input{min-width:0;flex:1;border:0;outline:0;color:var(--ink);background:transparent;font-size:16px}.search kbd{font:11px/1 ui-monospace,monospace;color:#8291aa;border:1px solid #dbe3ee;background:#f7f9fc;border-radius:6px;padding:5px 7px}
.topnav{display:flex;align-items:center;justify-content:flex-end;gap:5px}.topnav__button{height:46px;display:flex;align-items:center;gap:8px;padding:0 11px;border:0;border-radius:13px;background:transparent;color:var(--ink)}.topnav__button:hover{background:#eef4ff}.topnav__button span{font-size:21px;color:var(--blue)}.topnav__button b{font-weight:650;white-space:nowrap}.avatar{width:44px;height:44px;border:0;border-radius:50%;color:#fff;font-weight:800;background:linear-gradient(135deg,#2771ff,#1048c8);box-shadow:0 8px 20px rgba(19,79,206,.24)}
.workspace{min-height:0;display:grid;grid-template-columns:285px minmax(650px,1fr) 410px;gap:16px;padding:16px}
.card{min-height:0;border:1px solid rgba(220,229,240,.95);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);backdrop-filter:blur(12px)}
.systems{display:flex;flex-direction:column;padding:20px 16px;overflow:auto}.section-title{font-size:17px;font-weight:800;margin:4px 10px 14px}.system-list{display:grid;gap:10px}.system-button{width:100%;min-height:58px;display:flex;align-items:center;gap:13px;padding:0 15px;border:1px solid var(--line);border-radius:16px;background:#fff;color:var(--ink);box-shadow:var(--soft-shadow);text-align:left;transition:.18s ease}.system-button:hover{transform:translateY(-1px);border-color:#b9cff8}.system-button.active{border-color:transparent;color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue2));box-shadow:0 12px 26px rgba(20,83,221,.27)}.system-button__icon{width:30px;height:30px;display:grid;place-items:center;font-size:22px}.system-button strong{font-size:15px}.system-button small{display:block;margin-top:2px;opacity:.68}
.study-switch{display:grid;grid-template-columns:36px 1fr auto;gap:10px;align-items:center;margin-top:18px;padding:14px;border:1px solid var(--line);border-radius:18px;background:#f8fbff}.study-switch__icon{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:#e8f0ff;color:var(--blue);font-size:20px}.study-switch strong{font-size:14px}.study-switch p{margin:4px 0 0;font-size:12px;line-height:1.4;color:var(--muted)}.switch{width:42px;height:24px;padding:2px;border:0;border-radius:99px;background:#ccd7e7}.switch i{display:block;width:20px;height:20px;border-radius:50%;background:white;box-shadow:0 2px 5px rgba(0,0,0,.18);transition:.2s}.switch.active{background:var(--blue)}.switch.active i{transform:translateX(18px)}
.hint-card{display:flex;gap:12px;margin-top:auto;padding:16px;border:1px solid #d9e4f2;border-radius:18px;background:linear-gradient(160deg,#f8fbff,#eef4ff)}.hint-card>span{color:var(--blue);font-size:25px}.hint-card strong{font-size:14px}.hint-card p{margin:5px 0 0;color:var(--muted);font-size:13px;line-height:1.5}
.atlas{position:relative;overflow:hidden;display:grid;grid-template-rows:1fr 54px}.atlas::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 42%,rgba(51,120,255,.08),transparent 43%);pointer-events:none}.atlas__toolbar{position:absolute;left:18px;top:18px;z-index:15;display:grid;gap:7px;padding:9px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.94);box-shadow:var(--soft-shadow)}.atlas__toolbar button{width:40px;height:40px;border:0;border-radius:12px;background:#fff;color:var(--ink);font-size:21px}.atlas__toolbar button:hover{background:#eaf1ff;color:var(--blue)}
.stage-viewport{min-height:0;position:relative;overflow:hidden;display:grid;place-items:center}.stage{position:relative;width:700px;height:820px;transform-origin:center center;transition:transform .22s ease;user-select:none}.body-base{position:absolute;left:135px;top:18px;width:430px;height:auto;opacity:.38;filter:saturate(.88) contrast(.98);pointer-events:none;z-index:1;transition:opacity .2s}.organ-layer{position:absolute;pointer-events:none;filter:drop-shadow(0 7px 10px rgba(41,43,48,.09));transition:filter .16s ease,opacity .18s ease,transform .16s ease}.organ-layer.is-hovered,.organ-layer.is-selected{z-index:30!important;filter:drop-shadow(0 0 11px rgba(28,103,255,.76)) drop-shadow(0 7px 11px rgba(41,43,48,.12)) brightness(1.05) saturate(1.1)}.organ-layer.is-hovered{transform:scale(1.035)}.organ-layer.is-muted{opacity:.07;filter:grayscale(1)}
.connectors{position:absolute;inset:0;width:700px;height:820px;z-index:18;pointer-events:none}.connectors line{stroke:#c3d0e1;stroke-width:1.25}.connectors line.active{stroke:#2a70ff;stroke-width:1.8}.markers,.labels{position:absolute;inset:0;pointer-events:none}.organ-marker{position:absolute;width:17px;height:17px;transform:translate(-50%,-50%);border:3px solid #fff;border-radius:50%;background:var(--blue);box-shadow:0 0 0 2px rgba(38,103,241,.22),0 5px 12px rgba(24,68,161,.25);z-index:25;pointer-events:auto;transition:.16s}.organ-marker::after{content:"";position:absolute;inset:-7px;border:2px solid rgba(37,105,255,.25);border-radius:50%;opacity:0}.organ-marker:hover,.organ-marker.active{transform:translate(-50%,-50%) scale(1.2)}.organ-marker.active::after{animation:pulse 1.8s infinite}.organ-marker.muted{opacity:.12;pointer-events:none}.organ-label{position:absolute;transform:translateY(-50%);z-index:22;padding:8px 11px;border:1px solid var(--line);border-radius:11px;background:rgba(255,255,255,.95);box-shadow:0 5px 15px rgba(34,61,107,.08);color:#2d466d;font-size:12px;font-weight:700;white-space:nowrap;pointer-events:auto;transition:.15s}.organ-label:hover,.organ-label.active{color:var(--blue);border-color:#a8c5ff;transform:translateY(-50%) scale(1.03)}.organ-label.muted{opacity:.15;pointer-events:none}.labels-hidden .organ-label,.labels-hidden .connectors{opacity:0;pointer-events:none}
.organ-tooltip{position:absolute;z-index:40;width:235px;padding:15px 16px;border:1px solid #d5e0ee;border-radius:16px;background:rgba(255,255,255,.97);box-shadow:0 16px 36px rgba(23,53,104,.16);pointer-events:none}.organ-tooltip strong{display:block;margin-bottom:5px;color:var(--blue);font-size:16px}.organ-tooltip span{display:block;color:#506482;font-size:13px;line-height:1.45}
.quiz-message{position:absolute;top:18px;left:50%;z-index:50;transform:translateX(-50%);display:flex;align-items:center;gap:10px;padding:10px 12px 10px 17px;border-radius:15px;color:#fff;background:linear-gradient(135deg,#174fc7,#2b73ff);box-shadow:0 14px 30px rgba(24,81,208,.28)}.quiz-message span{font-weight:750}.quiz-message button{height:30px;border:0;border-radius:9px;padding:0 10px;background:#fff;color:#1748b7;font-weight:700}.quiz-message button:last-child{width:30px;padding:0;font-size:20px}
.atlas__bottom{position:relative;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:0 18px;border-top:1px solid var(--line);background:rgba(255,255,255,.92)}.breadcrumbs{display:flex;align-items:center;gap:8px;min-width:0;color:#7587a1;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.breadcrumbs strong{color:#31527e}.atlas-actions{display:flex;gap:8px}.atlas-actions button{height:36px;border:1px solid var(--line);border-radius:11px;background:#fff;color:#435b7c;padding:0 12px}.atlas-actions button:hover{border-color:#a9c3f2;color:var(--blue)}
.details{padding:20px;overflow:auto}.details__header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.eyebrow{color:#8090a9;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.12em}.details h1{margin:5px 0 0;font-size:31px;line-height:1;letter-spacing:-.035em}.details__header-actions{display:flex;gap:4px}.details__header-actions button{width:38px;height:38px;border:0;border-radius:12px;background:transparent;color:#71829d;font-size:22px}.details__header-actions button:hover{background:#eef4ff;color:var(--blue)}.details__hero{display:grid;grid-template-columns:145px 1fr;gap:16px;align-items:center;margin:14px 0 0;padding:12px 0 18px;border-bottom:1px solid var(--line)}.details__image-wrap{height:145px;display:grid;place-items:center;border:1px solid #e1e8f1;border-radius:20px;background:radial-gradient(circle,#fff,#f2f6fb)}.details__image-wrap img{max-width:130px;max-height:130px;object-fit:contain;filter:drop-shadow(0 8px 12px rgba(60,42,34,.12))}.details dl{margin:0}.details dl div+div{margin-top:16px}.details dt{color:#7b8da7;font-size:12px;font-weight:700}.details dd{margin:5px 0 0;color:var(--cyan);font-size:15px;font-weight:750}.detail-section{padding:16px 0;border-bottom:1px solid #e8edf5}.detail-section h2{margin:0 0 9px;font-size:15px}.detail-section p,.detail-section li{color:#485e7e;font-size:13px;line-height:1.52}.detail-section p{margin:0}.detail-section ul{margin:0;padding-left:19px}.detail-section li{margin:6px 0}.location-section{display:grid;grid-template-columns:1fr 90px;gap:14px}.location-section img{width:90px;height:90px;object-fit:contain;border:1px solid var(--line);border-radius:15px;background:#f7faff;padding:7px}.link-list li{color:#1760d8}.details__notice{margin-top:15px;padding:13px;border:1px solid #d7e3f2;border-radius:14px;background:#f6f9ff;color:#3e5b88;font-size:12px;line-height:1.45}
.modal-backdrop{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px;background:rgba(16,32,60,.32);backdrop-filter:blur(7px)}.modal{width:min(720px,100%);max-height:min(760px,90vh);overflow:hidden;border:1px solid var(--line);border-radius:25px;background:#fff;box-shadow:0 30px 90px rgba(10,31,67,.25)}.modal header{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--line)}.modal h2{margin:0;font-size:22px}.modal header button{width:38px;height:38px;border:1px solid var(--line);border-radius:50%;background:#fff;color:#536682;font-size:25px}.modal__content{padding:22px;overflow:auto;max-height:650px;color:#485e7d;line-height:1.6}.note-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:11px}.note-button{padding:13px;border:1px solid var(--line);border-radius:14px;background:#f7faff;color:var(--ink);text-align:left}.note-button:hover{border-color:#9ebef8;color:var(--blue)}
@keyframes pulse{0%{opacity:1;transform:scale(.65)}75%,100%{opacity:0;transform:scale(1.8)}}
@media(max-width:1450px){.workspace{grid-template-columns:255px minmax(590px,1fr) 360px}.topbar{grid-template-columns:minmax(290px,1fr) minmax(280px,470px) minmax(290px,1fr)}.topnav__button b{display:none}}
@media(max-width:1160px){body{overflow:auto}.app{height:auto;min-height:100%}.topbar{grid-template-columns:1fr auto}.search{grid-column:1/-1;grid-row:2}.workspace{grid-template-columns:1fr;grid-template-areas:"systems" "atlas" "details"}.systems{grid-area:systems}.atlas{grid-area:atlas;min-height:880px}.details{grid-area:details}.system-list{grid-template-columns:repeat(3,1fr)}.hint-card{margin-top:16px}}
@media(max-width:700px){.topbar{padding:10px;gap:10px}.brand__title{font-size:17px;white-space:normal}.brand__logo{width:45px;height:45px}.topnav__button{display:none}.workspace{padding:9px;gap:9px}.system-list{grid-template-columns:1fr 1fr}.system-button{min-height:52px;padding:0 11px}.system-button small{display:none}.atlas{min-height:735px}.atlas__toolbar{left:10px;top:10px}.details{padding:16px}.details__hero{grid-template-columns:110px 1fr}.details__image-wrap{height:110px}.details__image-wrap img{max-width:100px;max-height:100px}.atlas-actions button:first-child{display:none}.breadcrumbs{max-width:55vw}}