:root{--color-paper:oklch(98.3% 0.005 256);--color-paper-2:oklch(96.6% 0.009 256);--color-paper-3:oklch(93.4% 0.014 256);--color-surface:oklch(99.8% 0.004 256);--color-ink:oklch(22% 0.030 256);--color-ink-2:oklch(34% 0.026 256);--color-muted:oklch(47% 0.018 256);--color-rule:oklch(90.4% 0.018 252);--color-rule-2:oklch(95% 0.010 252);--color-brand:oklch(37.1% 0.129 256.5);--color-brand-deep:oklch(27% 0.090 256);--color-brand-tint:oklch(95.6% 0.020 252);--color-brand-ink:oklch(97.5% 0.008 256);--color-brand-ink-2:oklch(84% 0.030 256);--color-brand-rule:oklch(40% 0.090 256);--color-brand-head:oklch(80% 0.090 235);--color-accent:oklch(54% 0.195 26);--color-accent-deep:oklch(47% 0.180 26);--color-accent-ink:oklch(98% 0.006 26);--color-facebook:oklch(54.6% 0.215 262.9);--color-zalo:oklch(62.3% 0.188 259.8);--color-youtube:oklch(57.7% 0.215 27.3);--color-focus:oklch(50% 0.190 256);--color-focus-on-dark:oklch(95% 0.020 90);--color-placeholder:oklch(90% 0.016 256);--color-placeholder-ink:oklch(45% 0.020 256);--color-scrim:color-mix(in oklch,var(--color-brand-deep) 92%,transparent);--color-scrim-soft:color-mix(in oklch,var(--color-brand-deep) 75%,transparent);--color-backdrop:color-mix(in oklch,var(--color-brand-deep) 55%,transparent);--font-display:var(--font-be-vietnam-pro),ui-sans-serif,-apple-system,"Segoe UI",sans-serif;--font-body:var(--font-be-vietnam-pro),ui-sans-serif,-apple-system,"Segoe UI",sans-serif;--text-xs:0.75rem;--text-sm:0.875rem;--text-base:1rem;--text-md:1.125rem;--text-lg:1.25rem;--text-xl:clamp(1.375rem,1.15rem + 0.9vw,1.75rem);--text-headline:clamp(1.625rem,1.2rem + 1.8vw,2.25rem);--text-prose:1.0625rem;--leading-tight:1.3;--leading-body:1.6;--leading-prose:1.7;--space-3xs:0.125rem;--space-2xs:0.25rem;--space-xs:0.5rem;--space-sm:0.75rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2.5rem;--space-2xl:4rem;--space-3xl:6rem;--page-max:80rem;--page-gutter:clamp(1rem,3vw,1.5rem);--rule-hair:1px;--rule-thick:3px;--rule-heavy:4px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-pill:999px;--shadow-panel:0 1px 2px color-mix(in oklch,var(--color-ink) 5%,transparent);--shadow-float:0 8px 24px -4px color-mix(in oklch,var(--color-ink) 12%,transparent);--shadow-card:0 1px 3px color-mix(in oklch,var(--color-ink) 8%,transparent);--shadow-card-hover:0 6px 16px -4px color-mix(in oklch,var(--color-ink) 14%,transparent);--shadow-nav-stuck:0 10px 28px -6px color-mix(in oklch,var(--color-brand-deep) 45%,transparent);--shadow-hero:0 12px 28px -8px color-mix(in oklch,var(--color-brand-deep) 35%,transparent);--ease-out:cubic-bezier(0.16,1,0.3,1);--ease-in:cubic-bezier(0.7,0,0.84,0);--ease-in-out:cubic-bezier(0.65,0,0.35,1);--dur-micro:120ms;--dur-short:220ms;--dur-long:420ms;--z-base:1;--z-raised:10;--z-dropdown:100;--z-sticky:200;--z-popover:300;--z-modal:400}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body,html{overflow-x:clip}body{margin:0;background:var(--color-paper);color:var(--color-ink);font-family:var(--font-body);font-size:var(--text-base);line-height:var(--leading-body)}body:has([data-nav-open=true]){overflow:hidden}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:.18em}h1,h2,h3,h4{margin:0;font-family:var(--font-display);font-style:normal;overflow-wrap:anywhere;min-width:0}figure,ol,p,ul{margin:0}ol,ul{padding:0;list-style:none}button{font:inherit}button:disabled{opacity:.5;cursor:not-allowed;transform:none}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.wrap{width:100%;max-width:var(--page-max);margin-inline:auto;padding-inline:var(--page-gutter)}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}:where(.icon){flex:none;width:1em;height:1em}.ph{display:grid;place-items:center;width:100%;height:100%;padding:var(--space-xs);background:var(--color-placeholder);color:var(--color-placeholder-ink);font-size:var(--text-xs);text-align:center}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.15s!important;animation-iteration-count:1!important;transition-duration:.15s!important}}