.section-header{display:flex;flex-direction:column;gap:var(--qi-space-sm);margin-bottom:var(--qi-space-2xl);position:relative}.section-header--center{align-items:center;text-align:center}.section-label{font-family:var(--qi-font-mono);font-size:var(--qi-text-sm);font-weight:500;color:var(--qi-brand-emerald);letter-spacing:.08em;line-height:1.4;display:inline-flex;align-items:center;gap:var(--qi-space-sm)}.section-label:before{content:"";display:inline-block;width:20px;height:2px;background:linear-gradient(90deg,var(--qi-brand-emerald),transparent);border-radius:1px;flex-shrink:0}.section-header--center .section-label:before{opacity:0;pointer-events:none}.section-header--center .section-label:after{content:"";display:inline-block;width:20px;height:2px;background:linear-gradient(270deg,var(--qi-brand-emerald),transparent);border-radius:1px;flex-shrink:0}.section-title{font-family:var(--qi-font-serif);font-size:var(--qi-text-4xl);font-weight:700;color:var(--qi-text-primary);line-height:1.3;letter-spacing:.01em}.section-accent{display:block;width:48px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--qi-brand-emerald),var(--qi-brand-amber));margin-top:var(--qi-space-xs);position:relative}.section-accent:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;border-radius:inherit;background:inherit;filter:blur(4px);opacity:var(--qi-deco-strong)}.section-header--center .section-accent{margin-left:auto;margin-right:auto}.section-header--minimal .section-accent{opacity:0;pointer-events:none}@media(max-width:768px){.section-title{font-size:var(--qi-text-3xl)}}@media(min-width:1024px){.section-title{font-size:clamp(var(--qi-text-4xl),2.5vw,var(--qi-text-5xl))}}@media(min-width:2560px){.section-title{font-size:var(--qi-text-5xl)}}