:root{--bg-primary:#f4f6fa;--bg-secondary:#fff;--bg-card:#fffffff2;--bg-glass:#ffffffe0;--surface-overlay:#fffffff0;--accent-cyan:#0284c7;--accent-cyan-dim:#0284c71a;--accent-gold:#b45309;--accent-teal:#0d9488;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border-glass:#0f172a1a;--shadow-glow:0 0 40px #0284c714;--shadow-card:0 8px 32px #0f172a14;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-xl:32px;--font-body:"Inter", system-ui, -apple-system, sans-serif;--font-display:"Outfit", "Inter", system-ui, sans-serif;--transition:.3s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-body);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{cursor:pointer;font-family:inherit}ul{list-style:none}.navbar{z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-glass);transition:var(--transition);background:#ffffffe0;justify-content:space-between;align-items:center;padding:16px 48px;display:flex;position:fixed;top:0;left:0;right:0}.navbar.scrolled{background:#fffffffa;box-shadow:0 4px 24px #0f172a0f}.navbar-logo{font-family:var(--font-display);color:var(--text-primary);align-items:center;gap:12px;font-size:22px;font-weight:700;display:flex}.site-logo{object-fit:cover;object-position:8% center;flex-shrink:0;display:block}.site-logo--nav{border-radius:0;width:40px;height:40px}.site-logo--footer{border-radius:0;width:44px;height:44px}.navbar-links{align-items:center;gap:32px;display:flex}.navbar-links a{color:var(--text-secondary);transition:var(--transition);letter-spacing:.02em;font-size:14px;font-weight:500;position:relative}.navbar-links a:hover,.navbar-links a.active{color:var(--accent-cyan)}.navbar-links a:after{content:"";background:var(--accent-cyan);width:0;height:2px;transition:var(--transition);border-radius:1px;position:absolute;bottom:-4px;left:0}.navbar-links a:hover:after,.navbar-links a.active:after{width:100%}.hero{justify-content:center;align-items:center;min-height:100vh;padding:120px 48px 80px;display:flex;position:relative;overflow:hidden}.hero-bg{z-index:0;background:radial-gradient(ellipse 70% 55% at 50% 0%, #0284c71a 0%, transparent 70%), radial-gradient(ellipse 50% 40% at 100% 50%, #6366f112 0%, transparent 70%), var(--bg-primary);position:absolute;inset:0}.hero-bg:before{content:"";background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23000000' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");position:absolute;inset:0}.hero-glow{filter:blur(80px);pointer-events:none;z-index:0;border-radius:50%;position:absolute}.hero-glow--left{background:#0284c71f;width:420px;height:420px;top:18%;left:-120px}.hero-glow--right{background:#6366f11a;width:360px;height:360px;bottom:12%;right:-80px}.hero-inner{z-index:1;text-align:center;width:100%;max-width:860px;animation:.8s ease-out fadeUp;position:relative}.hero-badge{background:var(--accent-cyan-dim);color:var(--accent-cyan);border:1px solid #0284c733;border-radius:999px;align-items:center;gap:8px;margin-bottom:28px;padding:8px 20px;font-size:13px;font-weight:500;display:inline-flex}.hero-badge .pulse{background:var(--accent-cyan);border-radius:50%;width:8px;height:8px;animation:2s ease-in-out infinite pulse}.hero h1{font-family:var(--font-display);color:var(--text-primary);letter-spacing:-.02em;margin-bottom:20px;font-size:clamp(40px,6vw,68px);font-weight:800;line-height:1.08}.hero-heading-accent{background:linear-gradient(135deg, var(--accent-cyan) 0%, #6366f1 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-top:8px;font-size:clamp(22px,3.2vw,36px);font-weight:600;display:block}.hero-lead{color:var(--text-secondary);max-width:640px;margin:0 auto 36px;font-size:18px;line-height:1.75}.hero-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:14px;margin-bottom:36px;display:flex}.hero-cta{background:linear-gradient(135deg, var(--accent-cyan), #6366f1);color:#fff;transition:var(--transition);border:none;border-radius:999px;align-items:center;gap:10px;padding:16px 36px;font-size:15px;font-weight:600;text-decoration:none;display:inline-flex;box-shadow:0 4px 24px #0284c740}.hero-cta:hover{transform:translateY(-2px);box-shadow:0 8px 32px #0284c74d}.hero-cta svg{width:18px;height:18px}.hero-cta-secondary{border:1px solid var(--border-glass);background:var(--bg-card);color:var(--text-primary);transition:var(--transition);box-shadow:var(--shadow-card);border-radius:999px;align-items:center;padding:16px 28px;font-size:15px;font-weight:600;text-decoration:none;display:inline-flex}.hero-cta-secondary:hover{color:var(--accent-cyan);border-color:#0284c74d}.hero-highlights{flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:48px;display:flex}.hero-highlight{color:var(--text-secondary);background:var(--bg-card);border:1px solid var(--border-glass);letter-spacing:.02em;border-radius:999px;padding:8px 14px;font-size:12px;font-weight:600}.hero-stats{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.hero-stat-card{border-radius:var(--radius-md);background:var(--bg-card);border:1px solid var(--border-glass);box-shadow:var(--shadow-card);text-align:center;transition:var(--transition);padding:24px 16px}.hero-stat-card:hover{box-shadow:var(--shadow-glow);border-color:#0284c740;transform:translateY(-2px)}.hero-stat-card .number{font-family:var(--font-display);color:var(--accent-cyan);font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.1}.hero-stat-card .label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-top:8px;font-size:11px;font-weight:600}.section{padding:100px 48px;position:relative}.section-header{text-align:center;margin-bottom:64px}.section-header h2{font-family:var(--font-display);color:var(--text-primary);margin-bottom:16px;font-size:clamp(28px,4vw,42px);font-weight:700}.section-header p{color:var(--text-secondary);max-width:520px;margin:0 auto;font-size:16px}.systems-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;max-width:1280px;margin:0 auto;display:grid}.system-card{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:var(--transition);cursor:pointer;box-shadow:var(--shadow-card);flex-direction:column;gap:16px;padding:32px 28px;display:flex;position:relative;overflow:hidden}.system-card:before{content:"";background:linear-gradient(90deg, var(--card-accent,var(--accent-cyan)), transparent);opacity:0;height:3px;transition:var(--transition);position:absolute;top:0;left:0;right:0}.system-card:hover{box-shadow:var(--shadow-glow), 0 16px 48px #0f172a1a;border-color:#0284c740;transform:translateY(-6px)}.system-card:hover:before{opacity:1}.system-card.coming-soon{opacity:.6;cursor:default}.system-card.coming-soon:hover{border-color:var(--border-glass);box-shadow:var(--shadow-card);transform:none}.card-icon-wrap{border-radius:var(--radius-md);background:var(--accent-cyan-dim);width:56px;height:56px;transition:var(--transition);justify-content:center;align-items:center;font-size:28px;display:flex}.system-card:hover .card-icon-wrap{background:#0284c726;box-shadow:0 0 20px #0284c71f}.card-title{font-family:var(--font-display);color:var(--text-primary);font-size:20px;font-weight:600}.card-desc{color:var(--text-secondary);flex:1;font-size:14px;line-height:1.6}.card-badge{border-radius:999px;align-items:center;gap:6px;width:fit-content;padding:6px 14px;font-size:12px;font-weight:600;display:inline-flex}.card-badge.active{color:var(--accent-cyan);background:#0284c71a;border:1px solid #0284c738}.card-badge.soon{color:var(--accent-gold);background:#b4530914;border:1px solid #b4530933}.card-arrow{background:var(--accent-cyan-dim);width:32px;height:32px;color:var(--accent-cyan);opacity:0;transition:var(--transition);border-radius:50%;justify-content:center;align-items:center;font-size:16px;display:flex;position:absolute;top:28px;right:28px}.system-card:hover .card-arrow{opacity:1}.footer{border-top:1px solid var(--border-glass);background:var(--bg-secondary);padding:64px 48px 32px}.footer-content{grid-template-columns:2fr 1fr;gap:48px;max-width:1280px;margin:0 auto;display:grid}.footer-brand-header{align-items:center;gap:12px;margin-bottom:12px;display:flex}.footer-brand h3{font-family:var(--font-display);color:var(--text-primary);font-size:20px}.footer-brand p{color:var(--text-secondary);max-width:320px;font-size:14px}.footer-col h4{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:16px;font-size:13px}.footer-col a{color:var(--text-secondary);transition:var(--transition);padding:4px 0;font-size:14px;display:block}.footer-col a:hover{color:var(--accent-cyan)}.footer-bottom{border-top:1px solid var(--border-glass);text-align:center;max-width:1280px;color:var(--text-muted);margin:48px auto 0;padding-top:24px;font-size:13px}.footer-bottom p{margin:0}.footer-bottom p+p{margin-top:6px}.footer-valotum-hint{color:var(--text-muted);margin-top:12px;font-size:13px}.footer-valotum-credit{font-size:12px}.footer-valotum-name{color:var(--accent-cyan);font-weight:600}.contact-form{flex-direction:column;gap:20px;max-width:640px;margin:0 auto;display:flex}.contact-form-row{grid-template-columns:1fr 1fr;gap:20px;display:grid}.contact-field{flex-direction:column;gap:8px;display:flex}.contact-field span{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;font-size:13px;font-weight:600}.contact-field input,.contact-field textarea{border-radius:var(--radius-md);border:1px solid var(--border-glass);background:var(--bg-card);width:100%;color:var(--text-primary);transition:var(--transition);resize:vertical;padding:14px 16px;font-family:inherit;font-size:15px;line-height:1.5}.contact-field input:focus,.contact-field textarea:focus{border-color:#0284c766;outline:none;box-shadow:0 0 0 3px #0284c71f}.contact-field input:disabled,.contact-field textarea:disabled{opacity:.6;cursor:not-allowed}.contact-field--invalid input{border-color:#dc262680}.contact-field--invalid input:focus{border-color:#dc262699;box-shadow:0 0 0 3px #dc26261f}.contact-field-error{color:#b91c1c;font-size:13px;line-height:1.4}.contact-form-actions{justify-content:flex-start;display:flex}.contact-submit{background:linear-gradient(135deg, var(--accent-cyan), #6366f1);color:#fff;transition:var(--transition);border:none;border-radius:999px;justify-content:center;align-items:center;padding:14px 32px;font-size:15px;font-weight:600;display:inline-flex}.contact-submit:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 32px #0284c74d}.contact-submit:disabled{opacity:.65;cursor:not-allowed;transform:none}.contact-feedback{border-radius:var(--radius-sm);padding:12px 16px;font-size:14px}.contact-feedback--success{color:#047857;background:#0596691a;border:1px solid #05966933}.contact-feedback--error{color:#b91c1c;background:#dc262614;border:1px solid #dc262633}.viewer-page{background:var(--bg-primary);flex-direction:column;height:100dvh;display:flex;overflow:hidden}.viewer-topbar{padding:max(12px, env(safe-area-inset-top,0px)) 16px 12px;background:var(--bg-secondary);border-bottom:1px solid var(--border-glass);z-index:20;flex-shrink:0;align-items:center;gap:12px;display:flex}.viewer-topbar h2{font-family:var(--font-display);color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:15px;font-weight:600;overflow:hidden}.viewer-body{flex:1;grid-template-columns:65fr 35fr;min-height:0;display:grid;overflow:hidden}.viewer-stage{background:var(--bg-primary);justify-content:stretch;align-items:stretch;width:100%;min-width:0;height:100%;padding:0;display:flex}.viewer-canvas-wrap{border-right:1px solid var(--border-glass);width:100%;height:100%;min-height:0;box-shadow:none;touch-action:none;background:#fff;flex:1;position:relative}.sidebar-header{border-bottom:1px solid var(--border-glass);align-items:center;gap:12px;padding:20px;display:flex}.back-btn{border-radius:var(--radius-sm);background:var(--accent-cyan-dim);width:36px;height:36px;color:var(--accent-cyan);transition:var(--transition);border:1px solid #0284c733;justify-content:center;align-items:center;font-size:18px;display:flex}.back-btn:hover{background:#0284c726}.sidebar-header h2{font-family:var(--font-display);color:var(--text-primary);font-size:16px;font-weight:600}.sidebar-search{padding:12px 20px}.sidebar-search input{border-radius:var(--radius-sm);background:var(--bg-primary);border:1px solid var(--border-glass);width:100%;color:var(--text-primary);transition:var(--transition);outline:none;padding:10px 14px;font-size:13px}.sidebar-search input:focus{border-color:var(--accent-cyan)}.sidebar-search input::placeholder{color:var(--text-muted)}.collections-list{flex:1;padding:0 12px 12px;overflow-y:auto}.collections-list::-webkit-scrollbar{width:4px}.collections-list::-webkit-scrollbar-thumb{background:#0f172a26;border-radius:2px}.collection-item{border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);color:var(--text-secondary);border:1px solid #0000;margin-bottom:2px;padding:12px 14px;font-size:13px}.collection-item:hover{color:var(--text-primary);background:#0284c70f}.collection-item.active{color:var(--accent-cyan);background:#0284c71a;border-color:#0284c738}.viewer-image-wrap{border-right:1px solid var(--border-glass);touch-action:none;cursor:grab;background:#fff;flex:1;width:100%;height:100%;min-height:0;position:relative;overflow:hidden}.viewer-image-wrap:active{cursor:grabbing}.viewer-image-stage{transform-origin:50%;will-change:transform;position:absolute;top:50%;left:50%}.viewer-diagram{-webkit-user-select:none;user-select:none;-webkit-user-drag:none;width:auto;max-width:none;height:auto;max-height:none;display:block}.diagram-toolbar{pointer-events:auto}.diagram-part-list{flex-direction:column;gap:4px;margin-bottom:20px;list-style:none;display:flex}.diagram-part-btn{text-align:left;border-radius:var(--radius-sm);width:100%;color:var(--text-secondary);cursor:pointer;transition:var(--transition);background:0 0;border:1px solid #0000;padding:10px 12px;font-size:13px}.diagram-part-btn:hover{color:var(--text-primary);background:#0284c70f}.diagram-part-btn.active{color:var(--accent-cyan);background:#0284c71a;border-color:#0284c738}.diagram-part-detail{border-top:1px solid var(--border-glass);margin-top:8px;padding-top:16px}.diagram-function-list{flex-direction:column;gap:12px;list-style:none;display:flex}.diagram-function-item strong{color:var(--text-primary);margin-bottom:4px;font-size:13px;display:block}.diagram-function-item p{color:var(--text-secondary);margin:0;font-size:13px;line-height:1.6}.viewer-canvas{width:100%;height:100%;display:block;position:absolute;inset:0}.viewer-loading{z-index:5;background:#fff;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.viewer-loading.hidden{display:none}.viewer-loading-inner{flex-direction:column;align-items:center;gap:18px;display:flex}.viewer-loading-spinner{border:3px solid #0284c726;border-top-color:var(--accent-cyan);border-radius:50%;width:52px;height:52px;animation:.85s linear infinite viewer-spin}.viewer-loading-percent{color:var(--text-primary);font-variant-numeric:tabular-nums;letter-spacing:.04em;margin:0;font-size:18px;font-weight:600}.viewer-loading-status{color:var(--text-secondary);margin:0;font-size:14px}.viewer-loading-retry{border-radius:var(--radius-sm);background:var(--accent-cyan-dim);color:var(--accent-cyan);cursor:pointer;border:1px solid #0284c74d;padding:8px 20px;font-size:13px;font-weight:600}.viewer-loading-retry:hover{background:#0284c726}@keyframes viewer-spin{to{transform:rotate(360deg)}}.info-loading{justify-content:center;padding:20px 0;display:flex}.info-loading-spinner{border:2px solid #0284c726;border-top-color:var(--accent-cyan);border-radius:50%;width:28px;height:28px;animation:.85s linear infinite viewer-spin}.viewer-hud{z-index:3;color:var(--text-muted);background:var(--surface-overlay);border-radius:var(--radius-sm);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--border-glass);text-align:center;padding:8px 10px;font-size:10px;line-height:1.4;position:absolute;bottom:8px;left:8px;right:8px;box-shadow:0 2px 12px #0f172a0f}.viewer-hud-mobile{display:none}.viewer-toolbar{z-index:5;flex-wrap:wrap;gap:6px;display:flex;position:absolute;top:8px;left:8px;right:8px}.viewer-toolbar button{border-radius:var(--radius-sm);background:var(--surface-overlay);border:1px solid var(--border-glass);color:var(--text-primary);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:var(--transition);min-height:40px;padding:10px 12px;font-size:11px;font-weight:600;box-shadow:0 2px 12px #0f172a0f}.viewer-toolbar button:hover:not(:disabled){background:#0284c71a;border-color:#0284c74d}.viewer-toolbar button.active{color:var(--accent-cyan);background:#0284c724;border-color:#0284c766}.viewer-sex-toggle{border-radius:var(--radius-sm);border:1px solid var(--border-glass);display:inline-flex;overflow:hidden;box-shadow:0 2px 12px #0f172a0f}.viewer-sex-toggle button{box-shadow:none;border:none;border-radius:0;min-width:56px}.viewer-sex-toggle button+button{border-left:1px solid var(--border-glass)}.viewer-subtitle{color:var(--text-muted);text-transform:none;letter-spacing:normal;margin-left:8px;font-size:13px;font-weight:500}.viewer-toolbar button:disabled{opacity:.35;cursor:not-allowed}.viewer-toolbar button.warn{border-color:#b4530959}.viewer-toolbar button.warn:hover{background:#b4530914}.info-panel{background:var(--bg-secondary);border-left:1px solid var(--border-glass);-webkit-overflow-scrolling:touch;width:100%;min-width:0;padding:20px 24px;overflow-y:auto}.info-panel h3{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:16px;font-size:12px}.part-name{font-family:var(--font-display);color:var(--accent-cyan);margin-bottom:12px;font-size:22px;font-weight:600}.part-side{color:var(--text-muted);margin-left:8px;font-size:14px;font-weight:400}.info-actions{gap:10px;margin-top:8px;display:flex}.info-btn{cursor:pointer;border:1px solid var(--border-glass);background:var(--accent-cyan-dim);color:var(--text-primary);transition:var(--transition);border-radius:8px;flex:1;padding:10px 16px;font-size:13px;font-weight:600}.info-btn:hover{background:#0284c726;border-color:#0284c74d}.info-btn.hide{background:#dc262614;border-color:#dc26264d}.info-btn.hide:hover{background:#dc26261f}.info-btn.show{background:#b4530914;border-color:#b4530959}.info-btn.show:hover{background:#b4530924}.info-meta{color:var(--text-secondary);font-size:13px;line-height:1.8}.info-meta b{color:var(--text-muted);font-weight:600}.info-placeholder{color:var(--text-muted);font-size:13px;line-height:1.6}.annotation-detail{flex-direction:column;gap:4px;display:flex}.bone-medical{margin-top:4px}.bone-meta{color:var(--text-secondary);margin-bottom:12px;font-size:13px;line-height:1.5}.bone-summary-block{margin-top:0}.bone-summary{color:var(--text-secondary);font-size:13px;line-height:1.65}.bone-label{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-right:8px;font-size:11px;font-weight:600}.bone-block{margin-bottom:14px}.bone-block h4{text-transform:uppercase;letter-spacing:.06em;color:var(--accent-cyan);margin-bottom:6px;font-size:11px;font-weight:600}.bone-block p{color:var(--text-secondary);font-size:13px;line-height:1.55}.bone-source{color:var(--accent-cyan);opacity:.85;margin-top:8px;font-size:12px;text-decoration:none;display:inline-block}.bone-source:hover{opacity:1;text-decoration:underline}.part-popup{z-index:10;pointer-events:none;flex-direction:column;align-items:center;gap:4px;display:none;position:absolute;transform:translate(-50%,calc(-100% - 10px))}.part-popup.visible{display:flex}.part-tag{text-align:center;white-space:nowrap;text-overflow:ellipsis;background:var(--surface-overlay);max-width:200px;color:var(--text-primary);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid #0284c740;border-radius:999px;padding:6px 14px;font-size:11px;overflow:hidden;box-shadow:0 4px 16px #0f172a1a}.part-tag.hidden-part{opacity:.7;border-style:dashed}.part-toggle{pointer-events:auto;background:var(--accent-cyan-dim);color:var(--text-primary);transition:var(--transition);border:1px solid #0284c74d;border-radius:999px;padding:5px 14px;font-size:11px;font-weight:600}.part-toggle:hover{background:#0284c72e}.part-toggle.is-show{background:#b453091a;border-color:#b4530966}.part-popup-actions{pointer-events:auto;gap:6px;display:flex}.seo-section{background:var(--bg-primary)}.seo-section-alt{background:var(--bg-secondary)}.seo-content{max-width:1100px;margin:0 auto}.seo-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;display:grid}.seo-card{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:28px}.seo-card h3{font-family:var(--font-display);color:var(--text-primary);margin-bottom:12px;font-size:18px;font-weight:600}.seo-card p{color:var(--text-secondary);font-size:14px;line-height:1.7}.features-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;display:grid}.feature-card{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-md);transition:var(--transition);padding:24px}.feature-card:hover{box-shadow:var(--shadow-glow);border-color:#0284c740}.feature-card h3{font-family:var(--font-display);color:var(--accent-cyan);margin-bottom:10px;font-size:16px;font-weight:600}.feature-card p{color:var(--text-secondary);font-size:14px;line-height:1.65}.faq-list{flex-direction:column;gap:12px;display:flex}.faq-item{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-md);overflow:hidden}.faq-item summary{font-family:var(--font-display);color:var(--text-primary);cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:18px 22px;font-size:15px;font-weight:600;list-style:none;display:flex}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--accent-cyan);flex-shrink:0;font-size:20px;font-weight:400}.faq-item[open] summary:after{content:"−"}.faq-answer{border-top:1px solid var(--border-glass);padding:0 22px 18px}.faq-answer p{color:var(--text-secondary);padding-top:14px;font-size:14px;line-height:1.7}@keyframes fadeUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.5)}}.fade-in{animation:.6s ease-out both fadeUp}.fade-in-delay-1{animation-delay:.1s}.fade-in-delay-2{animation-delay:.2s}.fade-in-delay-3{animation-delay:.3s}@media (width<=900px){.navbar{padding:14px 24px}.hero{padding:100px 24px 60px}.hero-stats{grid-template-columns:repeat(2,1fr)}.section{padding:60px 24px}.footer-content{grid-template-columns:1fr;gap:32px}.contact-form-row{grid-template-columns:1fr}.viewer-page{height:auto;min-height:100dvh;overflow:hidden auto}.viewer-body{flex-direction:column;display:flex;overflow:visible}.viewer-stage{flex:none;width:100%;padding:0}.viewer-canvas-wrap{aspect-ratio:1;border-right:none;border-bottom:1px solid var(--border-glass);flex:none;width:100%;height:auto}.viewer-image-wrap{border-right:none;border-bottom:1px solid var(--border-glass);flex:none;width:100%;height:min(70vh,640px);min-height:360px}.info-panel{border-left:none;border-top:1px solid var(--border-glass);flex:none;width:100%;min-width:0;max-width:none;max-height:none;padding:16px}.viewer-hud-desktop{display:none}.viewer-hud-mobile{display:inline}.part-popup{max-width:calc(100% - 16px)}}@media (width<=600px){.navbar-links{display:none}.systems-grid{grid-template-columns:1fr}}