.section-header{display:flex;flex-direction:column;gap:var(--sp-4);margin-bottom:var(--sp-10)}.section-headline{font-size:var(--fs-2xl);font-weight:var(--weight-bold);letter-spacing:var(--tracking-tight);color:var(--c-text-primary)}.about-section-headline{font-size:var(--fs-2xl);font-weight:var(--weight-bold);letter-spacing:var(--tracking-tight);color:var(--c-text-primary);margin-bottom:var(--sp-6)}.section-about-bio{padding-block:var(--sp-section);background:var(--c-bg-2)}.about-bio__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,20rem),1fr));gap:var(--sp-section);align-items:start}.about-bio__grid--no-photo{grid-template-columns:1fr;max-width:48rem}.about-bio__photo-col{display:flex;flex-direction:column;align-items:flex-start;gap:var(--sp-5)}.about-bio__photo-frame{width:100%;max-width:18rem;aspect-ratio:3 / 4;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--c-border-accent);background:var(--c-surface);box-shadow:var(--glow-card);display:flex;align-items:center;justify-content:center;position:relative}.about-bio__photo-frame::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(124,58,237,0.08),rgba(6,182,212,0.04));pointer-events:none}.about-bio__photo-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;color:var(--c-text-muted)}.about-bio__photo-frame img{width:100%;height:100%;object-fit:cover;object-position:center top;display:block}.about-bio__name-plate{display:flex;flex-direction:column;gap:var(--sp-1)}.about-bio__name-plate strong{font-size:var(--fs-md);font-weight:var(--weight-bold);color:var(--c-text-primary)}.about-bio__name-plate span{font-family:var(--font-mono);font-size:var(--fs-xs);color:var(--c-cyan);letter-spacing:var(--tracking-wide)}.about-bio__copy{display:flex;flex-direction:column;gap:var(--sp-4)}.about-bio__body{display:flex;flex-direction:column;gap:var(--sp-4)}.section-about-principles{padding-block:var(--sp-section);background:var(--c-bg-2)}.principles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,20rem),1fr));gap:var(--sp-6)}.principle-card{display:flex;flex-direction:column;gap:var(--sp-4);padding:var(--sp-8);background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.principle-card:hover{border-color:var(--c-border-accent);box-shadow:var(--glow-card-hover)}.principle-card__num{font-family:var(--font-mono);font-size:var(--fs-2xl);font-weight:var(--weight-extrabold);color:var(--c-surface-3);line-height:1;letter-spacing:var(--tracking-tight)}.principle-card__title{font-size:var(--fs-lg);font-weight:var(--weight-bold);color:var(--c-text-primary);line-height:var(--leading-snug)}.principle-card__body{font-size:var(--fs-base);color:var(--c-text-secondary);line-height:var(--leading-relaxed)}.section-about-expertise{padding-block:var(--sp-section)}.about-expertise__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,24rem),1fr));gap:var(--sp-section);align-items:start}.about-expertise__header{display:flex;flex-direction:column;gap:var(--sp-4)}.about-expertise__note{font-size:var(--fs-sm);color:var(--c-text-muted);line-height:var(--leading-relaxed);border-left:2px solid var(--c-border-accent);padding-left:var(--sp-4);margin-top:var(--sp-2)}.expertise-list{display:flex;flex-direction:column;gap:var(--sp-3)}.expertise-item{display:flex;align-items:center;gap:var(--sp-3);font-size:var(--fs-base);color:var(--c-text-secondary)}.expertise-item svg{color:var(--c-cyan);flex-shrink:0}.section-about-network{padding-block:var(--sp-section);background:var(--c-bg-2);border-top:1px solid var(--c-border);overflow:hidden}.about-network__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,24rem),1fr));gap:var(--sp-section);align-items:center}@media (min-width:992px){.about-network__grid{grid-template-columns:1.1fr 0.9fr}}.about-network__copy{display:flex;flex-direction:column;gap:var(--sp-4)}.about-network__body{display:flex;flex-direction:column;gap:var(--sp-4)}.about-network__body p{font-size:var(--fs-base);color:var(--c-text-secondary);line-height:var(--leading-relaxed)}.nexus-network-container{position:relative;width:400px;height:420px;margin:0 auto}.network-connector-lines{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;color:var(--c-border-strong)}.nexus-node{position:absolute;z-index:1;width:180px;display:flex;align-items:center;gap:var(--sp-3);padding:var(--sp-3) var(--sp-4);background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-sm);transition:border-color var(--transition-base),box-shadow var(--transition-base)}.nexus-node:hover{border-color:var(--c-border-accent);box-shadow:var(--glow-card-hover)}.nexus-node__icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;color:var(--c-cyan);background:var(--c-cyan-glow);border-radius:var(--radius-xs)}.nexus-node__icon svg{width:18px;height:18px}.nexus-node__meta{display:flex;flex-direction:column;gap:2px;min-width:0}.nexus-node__meta strong{font-size:var(--fs-sm);font-weight:var(--weight-semibold);color:var(--c-text-primary);letter-spacing:var(--tracking-tight);line-height:var(--leading-snug)}.nexus-node__meta span{font-size:var(--fs-xs);color:var(--c-text-muted);line-height:var(--leading-snug)}.nexus-node--hub{top:160px;left:50%;transform:translateX(-50%);border-color:var(--c-border-accent);background:var(--c-bg);box-shadow:var(--glow-accent)}.nexus-node--hub:hover{box-shadow:var(--glow-accent),var(--glow-card-hover)}.node-pos-topleft{top:24px;left:8px}.node-pos-topright{top:24px;right:8px}.node-pos-bottom{top:306px;left:50%;transform:translateX(-50%)}@media (max-width:576px){.nexus-network-container{position:static;width:100%;height:auto;display:flex;flex-direction:column;gap:var(--sp-3);padding-block:var(--sp-4)}.network-connector-lines{display:none}.nexus-node{position:static;width:100%;transform:none !important}}.section-about-working{padding-block:var(--sp-section);background:var(--c-bg-3)}.about-working__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,24rem),1fr));gap:var(--sp-section);align-items:center}.about-working__copy{display:flex;flex-direction:column;gap:var(--sp-5)}.about-working__copy p{font-size:var(--fs-base);color:var(--c-text-secondary);line-height:var(--leading-relaxed)}.about-working__action{display:flex;flex-direction:column;align-items:flex-start;gap:var(--sp-4)}