.head-neck-page{background:#f7f9fd}.head-neck-lab{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;max-width:1440px;margin:0 auto;padding:28px 24px 56px;align-items:start}.head-neck-3d-column,.head-neck-slice-column{min-width:0}.head-neck-3d-column{position:sticky;top:96px}.head-neck-3d-column .atlas-lab{min-height:0;background:transparent}.head-neck-3d-column .atlas-device-note{display:none}.head-neck-3d-column .atlas-deferred,.head-neck-3d-column .atlas-studio{min-height:640px;border-radius:16px}.head-neck-3d-column .atlas-studio{height:min(860px,calc(100svh - 120px))}@media (min-width:1101px){.head-neck-3d-column .atlas-studio .atlas-inspector{display:none}.head-neck-3d-column .atlas-studio .atlas-workspace{grid-template-columns:220px minmax(0,1fr)}}.slice-viewer{--s-navy:#10164f;--s-blue:#304ffe;--s-line:#dbe0ee;--s-muted:#5a6382;padding:20px;border:1px solid var(--s-line);border-radius:16px;background:#fff;color:var(--s-navy);font:14px/1.5 var(--font-body),sans-serif}.slice-viewer button{font:inherit;cursor:pointer}.slice-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.slice-head h2{margin:0;font:700 20px/1.2 var(--font-display),sans-serif}.slice-axis-tabs,.slice-segment{display:flex;gap:4px;padding:4px;border-radius:10px;background:#eef1fb}.slice-axis-tabs button,.slice-segment button{min-height:36px;padding:0 12px;border:0;border-radius:7px;background:transparent;color:var(--s-navy);font-weight:600;font-size:13px}.slice-axis-tabs button[aria-selected=true],.slice-segment button[aria-pressed=true]{background:#fff;color:var(--s-blue);box-shadow:0 1px 4px rgba(16,22,79,.14)}.slice-stage{padding:14px;border-radius:14px;background:#05070f}.slice-frame{position:relative;margin:0 auto;padding:22px;box-sizing:border-box}.slice-image-box{position:relative;width:100%;cursor:crosshair;touch-action:pan-y;outline:none}.slice-image-box:focus-visible{box-shadow:0 0 0 2px #8090ff}.slice-image-box canvas,.slice-image-box img{position:absolute;inset:0;width:100%;height:100%;user-select:none}.slice-overlay{image-rendering:pixelated;pointer-events:none}.slice-tip{z-index:3;transform:translate(12px,-130%);padding:4px 8px;border-radius:6px;background:rgba(16,22,79,.92);color:#fff;font-size:12px;font-weight:600;white-space:nowrap}.slice-mark,.slice-tip{position:absolute;pointer-events:none}.slice-mark{color:#9fa8c9;font-size:11px;font-weight:700;letter-spacing:.04em}.slice-mark.is-top{top:2px;left:50%;transform:translateX(-50%)}.slice-mark.is-bottom{bottom:2px;left:50%;transform:translateX(-50%)}.slice-mark.is-left{left:0;top:50%;transform:translateY(-50%) rotate(-90deg)}.slice-mark.is-right{right:0;top:50%;transform:translateY(-50%) rotate(90deg)}.slice-scrub{display:grid;grid-template-columns:40px 1fr 40px auto;align-items:center;gap:8px;margin-top:12px;color:#dfe4ff}.slice-scrub button{display:grid;place-items:center;width:40px;height:40px;border:1px solid #2c3462;border-radius:8px;background:transparent;color:#dfe4ff}.slice-scrub input{width:100%;accent-color:#70e3db}.slice-scrub output{min-width:64px;text-align:right;font:700 15px/1 var(--font-display),sans-serif;font-variant-numeric:tabular-nums}.slice-scrub small{color:#9fa8c9;font-weight:500}.slice-options{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:12px}.slice-options .slice-segment{background:#151a38}.slice-options .slice-segment button{color:#cfd5f5}.slice-options .slice-segment button[aria-pressed=true]{background:#fff;color:var(--s-navy)}.slice-toggle{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:0 12px;border:1px solid #2c3462;border-radius:8px;background:transparent;color:#cfd5f5;font-size:13px;font-weight:600}.slice-toggle[aria-pressed=true]{border-color:#70e3db;color:#70e3db}.slice-hint{color:#8d96bb;font-size:12px}.slice-selected{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px;min-height:52px;margin-top:14px;padding:12px 14px;border-radius:10px;background:#f3f5fc}.slice-selected strong{font:700 17px/1.3 var(--font-display),sans-serif}.slice-selected small{color:var(--s-muted)}.slice-selected span{color:var(--s-muted);font-size:13px}.slice-structures{margin-top:16px}.slice-structures h3{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:14px}.slice-structures h3 span{padding:1px 8px;border-radius:999px;background:#eef1fb;color:var(--s-blue);font-size:12px}.slice-structures [role=list]{display:flex;flex-wrap:wrap;gap:6px}.slice-structures [role=list] button{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:0 12px;border:1px solid var(--s-line);border-radius:999px;background:#fff;color:var(--s-navy);font-size:13px}.slice-structures [role=list] button:hover{border-color:var(--s-blue)}.slice-structures [role=list] button.is-active{border-color:var(--s-navy);background:var(--s-navy);color:#fff}.slice-structures i{width:8px;height:8px;border-radius:50%}.slice-loading{min-height:520px;display:grid;place-items:center;color:#5a6382}.head-neck-source .atlas-medical-notice{color:#10164f}@media (max-width:1100px){.head-neck-lab{grid-template-columns:1fr}.head-neck-3d-column{position:static}.head-neck-3d-column .atlas-studio{height:620px;min-height:0}}@media (max-width:640px){.head-neck-lab{padding:16px 12px 40px}.slice-viewer{padding:14px}.slice-stage{padding:8px}.slice-frame{padding:18px}.head-neck-3d-column .atlas-studio{height:560px}}.head-neck-3d-column .atlas-bottom .atlas-source-compact,.head-neck-3d-column .atlas-bottom>button:first-child,.head-neck-3d-column .atlas-bottom>span{display:none}