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a.about-primary:visited{color:var(--ds-text-on-brand)}.about-primary:hover,.about-secondary:hover{box-shadow:var(--ds-shadow-sm);transform:translateY(-1px)}.about-secondary{background:var(--ds-bg-surface);color:var(--ds-text-primary);border-color:var(--ds-border-default)}.about-primary:focus-visible,.about-secondary:focus-visible{outline:2px solid var(--ds-focus-ring);outline-offset:2px}.about-principles{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:22px 0 60px;display:grid}.about-principles article{border:1px solid var(--ds-border-default);border-radius:var(--ds-radius-lg);background:var(--ds-bg-surface);box-shadow:var(--ds-shadow-sm);transition:transform var(--ds-duration-fast), box-shadow var(--ds-duration-fast), border-color var(--ds-duration-fast);flex-direction:column;align-items:flex-start;gap:14px;padding:26px;display:flex}.about-principles 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var(--ds-border-default);background:var(--ds-bg-surface);color:var(--ds-text-primary);box-shadow:var(--ds-shadow-xs);padding:10px 18px;font-size:14px;font-weight:700}.about-model-note{color:var(--ds-text-muted);margin:16px 0 0;font-size:13px;line-height:1.7}.about-product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px;display:grid}.about-product-grid article{border:1px solid var(--ds-border-default);border-radius:var(--ds-radius-lg);background:var(--ds-bg-surface);box-shadow:var(--ds-shadow-sm);padding:26px}.about-product-grid h3{margin:0 0 12px;font-size:18px;font-weight:700;line-height:1.4}.about-product-grid p{color:var(--ds-text-secondary);margin:0 0 16px;font-size:14px;line-height:1.75}.about-product-grid a{color:var(--ds-brand);font-size:14px;font-weight:700}.about-product-grid a:hover{text-decoration:underline}.about-faq-list{gap:18px;margin:24px 0 0;display:grid}.about-faq-item{border:1px solid 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