*,:after,:before{box-sizing:border-box;margin:0;padding:0}@import url("https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,700&family=Noto+Sans:wght@300;400;500;600;700&display=swap");:root{--color-primary:#0F172A;--color-secondary:#334155;--color-accent:#0369A1;--color-accent-hover:#0284C7;--color-bg:#F8FAFC;--color-bg-alt:#F1F5F9;--color-surface:#FFFFFF;--color-surface-2:#F8FAFC;--color-muted:#E8ECF1;--color-border:#E2E8F0;--color-fg:#020617;--color-fg-muted:#475569;--color-fg-subtle:#94A3B8;--color-on-accent:#FFFFFF;--color-destructive:#DC2626;--color-success:#16A34A;--color-warning:#D97706;--shadow-sm:0 1px 3px rgba(15,23,42,0.08),0 1px 2px rgba(15,23,42,0.04);--shadow-md:0 4px 12px rgba(15,23,42,0.10),0 2px 4px rgba(15,23,42,0.06);--shadow-lg:0 10px 32px rgba(15,23,42,0.12),0 4px 8px rgba(15,23,42,0.06);--shadow-xl:0 20px 48px rgba(15,23,42,0.14),0 8px 16px rgba(15,23,42,0.08);--glow-accent:0 4px 16px rgba(3,105,161,0.25);--glow-accent-lg:0 8px 32px rgba(3,105,161,0.30);--font-heading:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,sans-serif;--font-body:"Noto Sans",-apple-system,BlinkMacSystemFont,sans-serif;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-20:80px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--transition-fast:150ms ease;--transition-base:250ms ease;--transition-slow:400ms ease;--z-base:0;--z-raised:10;--z-overlay:100;--z-modal:200;--z-nav:500;--z-toast:1000}body,html{width:100%;overflow-x:hidden;font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:var(--color-bg);color:var(--color-fg)}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.25;color:var(--color-primary)}a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}ul{list-style:none}img{max-width:100%;display:block}button{font-family:var(--font-body);cursor:pointer}#fp-wrapper,.fp-slide{width:100%}.fp-slide{min-height:100vh;display:flex;align-items:center;justify-content:center}[data-theme=dark]{--color-primary:#F1F5F9;--color-secondary:#CBD5E1;--color-accent:#38BDF8;--color-accent-hover:#7DD3FC;--color-bg:#0A0E1A;--color-bg-alt:#111827;--color-surface:#1E293B;--color-surface-2:#0F172A;--color-muted:#1E293B;--color-border:rgba(255,255,255,0.10);--color-fg:#F8FAFC;--color-fg-muted:#B8C5D6;--color-fg-subtle:#8899AA;--color-on-accent:#0F172A;--shadow-sm:0 1px 3px rgba(0,0,0,0.40);--shadow-md:0 4px 12px rgba(0,0,0,0.50);--shadow-lg:0 10px 32px rgba(0,0,0,0.55);--shadow-xl:0 20px 48px rgba(0,0,0,0.60);--glow-accent:0 4px 16px rgba(56,189,248,0.30);--glow-accent-lg:0 8px 32px rgba(56,189,248,0.35)}*,:after,:before{transition:background-color .25s ease,border-color .25s ease,color .15s ease}.container{max-width:1400px;margin:0 auto;padding:0 clamp(1.25rem,4vw,4rem)}#scrollTop{position:fixed;bottom:32px;right:32px;width:46px;height:46px;background:var(--color-accent);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:all var(--transition-base);z-index:var(--z-overlay);box-shadow:var(--glow-accent)}#scrollTop.visible{opacity:1;visibility:visible}#scrollTop:hover{background:var(--color-accent-hover);transform:translateY(-4px);box-shadow:var(--glow-accent-lg)}#scrollTop svg{width:20px;height:20px;fill:#ffffff}.zalo-chat{position:fixed;bottom:90px;right:32px;width:56px;height:56px;background:#0068ff;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-base);z-index:var(--z-overlay);box-shadow:0 4px 16px rgba(0,104,255,.3)}.zalo-chat:hover{transform:scale(1.1);box-shadow:0 8px 24px rgba(0,104,255,.4)}.zalo-chat img{width:32px;height:32px}.progress-dots{position:fixed;right:40px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:16px;z-index:var(--z-overlay)}@media (max-width:1024px){.progress-dots{display:none}}.progress-dot{width:12px;height:12px;background:var(--color-muted);border:2px solid var(--color-border);border-radius:50%;cursor:pointer;position:relative}.progress-dot,.progress-dot:after{transition:all var(--transition-base)}.progress-dot:after{content:attr(data-tooltip);position:absolute;right:24px;top:50%;transform:translateY(-50%);background:var(--color-primary);color:#ffffff;padding:6px 12px;border-radius:var(--radius-sm);font-family:var(--font-body);font-size:12px;font-weight:600;white-space:nowrap;opacity:0;visibility:hidden;box-shadow:var(--shadow-md)}.progress-dot:hover:after{opacity:1;visibility:visible;right:28px}.progress-dot.active{transform:scale(1.3)}.progress-dot.active,.progress-dot:hover{background:var(--color-accent);border-color:var(--color-accent)}.hide-mobile{display:block}@media (max-width:768px){.hide-mobile{display:none!important}}.show-mobile{display:none}@media (max-width:768px){.show-mobile{display:block!important}}.desktop-only{display:block}@media (max-width:1024px){.desktop-only{display:none!important}}.mobile-only{display:none}@media (max-width:1024px){.mobile-only{display:block!important}}.text-responsive{font-size:clamp(14px,2vw,18px)}.title-responsive{font-size:clamp(24px,5vw,48px)}