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var(--border-color);color:var(--text-primary);border-radius:var(--radius-sm);cursor:pointer;width:42px;height:42px;transition:var(--transition-smooth);flex-shrink:0;justify-content:center;align-items:center;font-size:1.1rem;display:none}.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}@media (width<=768px){html{overflow-x:clip}.nav-header{position:sticky}.nav-header.nav-menu-open{z-index:10000}.nav-container{flex-wrap:nowrap;gap:.5rem;position:relative}.nav-logo{flex:1;min-width:0;font-size:1rem}.nav-logo-name{text-overflow:ellipsis;overflow:hidden}.nav-toggle{z-index:10001;display:inline-flex;position:relative}.nav-backdrop{-webkit-backdrop-filter:blur(2px);z-index:9998;opacity:0;visibility:hidden;pointer-events:none;background:#0f172a6b;transition:opacity .28s,visibility .28s;position:fixed;inset:0}.nav-backdrop.is-visible{opacity:1;visibility:visible;pointer-events:auto}.nav-links{background:var(--bg-secondary);border:none;border-left:1px solid var(--border-color);width:min(88vw,320px);height:100dvh;max-height:none;padding:calc(4.5rem + env(safe-area-inset-top,0px)) 1rem calc(1.5rem + env(safe-area-inset-bottom,0px));opacity:1;visibility:hidden;z-index:9999;overscroll-behavior:contain;border-radius:0;flex-direction:column;align-items:stretch;gap:.35rem;transition:transform .32s cubic-bezier(.22,1,.36,1),visibility .32s;position:fixed;inset:0 0 0 auto;overflow-y:auto;transform:translate(100%);box-shadow:-12px 0 40px #0f172a24}.nav-links.is-open{visibility:visible;transform:translate(0)}.nav-link{width:100%;padding:.75rem .9rem;font-size:.95rem}body.nav-menu-open{overflow:hidden}}@media (width<=420px){.nav-logo-name{display:none}.nav-container{width:92%}}.relations-container{grid-template-columns:1fr;gap:2.5rem;width:94%;max-width:1440px;margin-inline:auto;padding-bottom:4rem;display:grid}.page-relations .relations-intro{text-align:center}.page-relations .relations-intro__title{color:var(--primary);flex-wrap:wrap;justify-content:center;align-items:center;gap:.75rem;margin-bottom:.5rem;font-size:clamp(1.35rem,5.2vw,2.2rem);line-height:1.3;display:flex}.page-relations .relations-intro__desc{max-width:800px;color:var(--text-secondary);margin:0 auto;font-size:clamp(.88rem,2.8vw,1rem);line-height:1.65}.page-relations .chart-section-title{border-bottom:none;flex-wrap:wrap;align-items:flex-start;margin:0;padding-bottom:0;line-height:1.35}.page-relations .chart-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:1rem;display:flex}.page-relations .chart-toolbar__text{flex:240px;min-width:0}.page-relations .chart-reset-btn{border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-primary);cursor:pointer;font-size:.84rem;font-family:var(--font-body);color:var(--text-secondary);white-space:nowrap;transition:var(--transition-smooth);flex-shrink:0;justify-content:center;align-items:center;gap:.35rem;padding:.55rem .95rem;font-weight:600;display:inline-flex}.page-relations .chart-reset-btn:hover{border-color:var(--primary);color:var(--primary)}.chart-card-large{flex-direction:column;min-width:0;display:flex;position:relative}.chart-large{background:var(--bg-card);border-radius:var(--radius-md);width:100%;min-width:0;height:650px;margin-top:1.5rem;overflow:hidden}.chart-header{border-bottom:1px solid var(--border-color);margin-bottom:1rem;padding-bottom:1rem}.chart-subtitle{color:var(--text-secondary);margin-top:.25rem;font-size:.88rem;line-height:1.6}.chart-sankey{background:var(--bg-card);border-radius:var(--radius-md);touch-action:pan-y pinch-zoom;width:100%;min-width:0;height:900px;margin-top:1.5rem;overflow:hidden}.chart-mobile-hint{border-radius:var(--radius-sm);color:var(--text-secondary);background:#05966914;border:1px solid #0596692e;align-items:flex-start;gap:.45rem;margin-top:.65rem;padding:.55rem .7rem;font-size:.8rem;line-height:1.45;display:none}.chart-mobile-hint i{color:var(--primary);flex-shrink:0;margin-top:.1rem}@media (width<=1024px){.chart-sankey{height:700px}}@media (width<=768px){.page-relations .glass-panel{padding:1.15rem 1rem}.page-relations .relations-container{gap:1.35rem;width:92%;padding-bottom:2.5rem}.page-relations .relations-intro__title{text-align:left;justify-content:flex-start}.page-relations .relations-intro{text-align:left}.page-relations .chart-subtitle{font-size:.82rem}.page-relations .chart-toolbar{flex-direction:column;align-items:stretch}.page-relations .chart-reset-btn{width:100%}.page-relations .chart-mobile-hint{display:flex}.chart-large{height:min(62vh,460px);min-height:320px;margin-top:1rem}.chart-sankey{height:auto;min-height:360px;margin-top:1rem}}.scroll-top-btn{z-index:300;cursor:pointer;color:#fff;background:linear-gradient(135deg, var(--primary), var(--secondary));width:46px;height:46px;box-shadow:var(--shadow-glow);opacity:0;visibility:hidden;pointer-events:none;transition:var(--transition-smooth);border:none;border-radius:50%;place-items:center;font-size:1rem;display:grid;position:fixed;bottom:1.25rem;right:1.25rem;transform:translateY(12px)scale(.9)}.scroll-top-btn.is-visible{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)scale(1)}.scroll-top-btn:hover{transform:translateY(-3px)scale(1.05);box-shadow:0 16px 36px -8px #0596698c}.scroll-top-btn:active{transform:translateY(0)scale(.98)}@media (width<=640px){.scroll-top-btn{width:42px;height:42px;bottom:1rem;right:1rem}}