.about-hero {
            background: linear-gradient(135deg, var(--pt-primary) 0%, #818CF8 100%);
            color: #fff; padding: 80px 0; text-align: center; position: relative; overflow: hidden;
        }
        .about-hero::before {
            content: ''; position: absolute; inset: 0;
            background-image: 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='%23ffffff' fill-opacity='0.06'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        }
        .about-hero > * { position: relative; z-index: 1; }
        .about-hero h1 { font-size: 36px; font-weight: 800; margin-bottom: 12px; }
        .about-hero p { font-size: 16px; opacity: 0.85; max-width: 600px; margin: 0 auto; line-height: 1.8; }
        .section-block { padding: 60px 0; }
        .section-block:nth-child(even) { background: var(--pt-bg-white); }
        .section-title { font-size: 24px; font-weight: 700; text-align: center; margin-bottom: 12px; }
        .section-desc { text-align: center; color: var(--pt-text-secondary); font-size: 15px; margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; line-height: 1.8; }
        .value-card { background: var(--pt-bg-white); border: 1px solid var(--pt-border); border-radius: var(--pt-radius); padding: 32px; text-align: center; transition: all 0.3s; }
        .value-card:hover { box-shadow: var(--pt-shadow-md); transform: translateY(-4px); }
        .value-icon { width: 64px; height: 64px; border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: 28px; }
        .value-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
        .value-card p { font-size: 14px; color: var(--pt-text-secondary); line-height: 1.7; }
        .team-card { text-align: center; }
        .team-avatar { width: 100px; height: 100px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: 36px; font-weight: 700; }
        .team-card h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
        .team-card .role { font-size: 13px; color: var(--pt-primary); font-weight: 500; margin-bottom: 8px; }
        .team-card p { font-size: 13px; color: var(--pt-text-secondary); line-height: 1.6; }
        .contact-card { background: var(--pt-bg-white); border: 1px solid var(--pt-border); border-radius: var(--pt-radius); padding: 32px; }
        .contact-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
        .contact-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--pt-border-light); }
        .contact-item:last-child { border-bottom: none; }
        .contact-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 18px; }
        .contact-item h4 { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
        .contact-item p { font-size: 14px; color: var(--pt-text-secondary); }
        .contact-item a { color: var(--pt-primary); }
        .social-link { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--pt-border); transition: all 0.2s; font-size: 18px; color: var(--pt-text-secondary); }
        .social-link:hover { background: var(--pt-primary); color: #fff; border-color: var(--pt-primary); }
        .timeline { position: relative; padding-left: 32px; }
        .timeline::before { content: ''; position: absolute; left: 11px; top: 0; bottom: 0; width: 2px; background: var(--pt-border); }
        .timeline-item { position: relative; padding-bottom: 24px; }
        .timeline-item::before { content: ''; position: absolute; left: -27px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--pt-primary); border: 2px solid #fff; box-shadow: 0 0 0 2px var(--pt-primary); }
        .timeline-item .year { font-size: 14px; font-weight: 700; color: var(--pt-primary); margin-bottom: 4px; }
        .timeline-item .event { font-size: 14px; color: var(--pt-text-secondary); line-height: 1.6; }