.about-hero{padding:60px 0 40px;background:linear-gradient(135deg,var(--tf-primary) 0,var(--tf-primary-dark) 100%);color:var(--tf-white);text-align:center}.about-hero h1{color:var(--tf-white);max-width:850px;margin:0 auto 20px}.about-intro{font-size:17px;color:rgba(255,255,255,.85);max-width:780px;margin:0 auto;line-height:1.7}.about-story{padding:80px 0}.about-story ai-img,.about-story img{border-radius:var(--tf-radius-lg);width:100%}.about-story h2{margin-bottom:20px}.about-story p{color:var(--tf-gray-700);line-height:1.7}.about-milestones{padding:80px 0;background:var(--tf-gray-100)}.about-milestones h2{text-align:center;margin-bottom:48px}.timeline{position:relative;max-width:800px;margin:0 auto;padding-left:40px}.timeline::before{content:"";position:absolute;left:16px;top:0;bottom:0;width:3px;background:var(--tf-primary-light)}.timeline-item{position:relative;margin-bottom:40px}.timeline-item::before{content:"";position:absolute;left:-32px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--tf-primary);border:3px solid var(--tf-primary-light)}.timeline-year{display:inline-block;font-size:14px;font-weight:700;color:var(--tf-primary);background:var(--tf-primary-light);padding:2px 12px;border-radius:20px;margin-bottom:8px}.timeline-content h3{font-size:18px;margin-bottom:8px}.timeline-content p{font-size:15px;color:var(--tf-gray-500);margin:0}.about-certifications{padding:80px 0}.about-certifications h2{margin-bottom:12px}.about-certifications>.container>p{color:var(--tf-gray-500);margin-bottom:40px}.cert-grid{display:flex;justify-content:center;gap:24px;flex-wrap:wrap}.cert-item{padding:24px 32px;background:var(--tf-gray-100);border-radius:var(--tf-radius);text-align:center;min-width:200px}.cert-item strong{display:block;font-size:18px;color:var(--tf-dark);margin-bottom:4px}.cert-item span{font-size:13px;color:var(--tf-gray-500)}.about-cta{padding:80px 0;background:var(--tf-gray-100)}.about-cta h2{margin-bottom:16px}.about-cta p{color:var(--tf-gray-500);max-width:650px;margin:0 auto 32px}