:root{--color-primary:#1956D0;--color-primary-hover:#153F9B;--color-primary-dark:#0F172A;--color-bg:#FFFFFF;--color-bg-light:#F9FAFB;--color-bg-muted:#F3F4F6;--color-text:#1F2937;--color-text-light:#6B7280;--color-text-muted:#9CA3AF;--color-text-inverse:#FFFFFF;--color-separator:#E5E7EB;--color-border:#D1D5DB;--container-max-width:1140px;--gutter:24px;--section-padding:80px;--section-padding-mobile:48px;--font-base-size:17px;--font-base-size-cn:16px;--line-height-body:1.7;--line-height-body-cn:1.75;--line-height-heading:1.2;--space-xs:8px;--space-sm:16px;--space-md:24px;--space-lg:40px;--space-xl:64px;--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--transition-base:0.2s ease-in-out}body.lang-es,body.lang-en{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:17px;line-height:1.7;color:var(--color-text)}body.lang-cn{font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;font-size:16px;line-height:1.75;color:var(--color-text)}h1{font-size:46px;font-weight:600;line-height:1.2;letter-spacing:-0.5px}body.lang-cn h1{font-size:40px;line-height:1.3;letter-spacing:0}@media (max-width:768px){h1{font-size:36px;letter-spacing:-0.3px}body.lang-cn h1{font-size:32px}}