:root{
  --theme:#d01c2d;
  --theme-dark:#8f1220;
  --theme-deep:#5d0711;
  --theme-light:#fff2f4;
  --theme-soft:#fff8f9;
  --theme-hover:#b01726;
  --theme-border:rgba(208,28,45,.22);
  --text-main:#251015;
  --text-muted:#70535a;
  --on-theme:#ffffff;
  --on-dark:#ffffff;
  --white:#ffffff;
  --shadow-soft:0 18px 45px rgba(93,7,17,.13);
}
*{box-sizing:border-box} html,body{margin:0;min-height:100%;overflow-x:hidden;overflow-y:auto} body{background:var(--theme-light);color:var(--text-main);font-family:Arial,Helvetica,sans-serif;line-height:1.75;font-size:16px} a{text-decoration:none} img{max-width:100%;height:auto}.container,.section-inner,.header-inner,.footer-inner{width:min(1200px,calc(100% - 48px));margin:0 auto}.site-header{position:sticky;top:0;width:100%;z-index:9999;background:linear-gradient(135deg,var(--theme-dark),var(--theme-deep));color:var(--on-dark);box-shadow:var(--shadow-soft);backdrop-filter:blur(10px)}.header-inner{max-width:1280px;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}.logo img,.footer-brand img,.drawer-logo img{display:block;height:auto;max-width:180px}.logo img{max-height:54px}.main-nav{display:none;align-items:center;gap:4px}.main-nav a{color:var(--on-dark);font-weight:700;font-size:14px;padding:10px 11px;border-radius:999px;white-space:nowrap}.main-nav a.active,.main-nav a:hover{color:var(--on-dark);background:rgba(255,255,255,.12);box-shadow:inset 0 -2px 0 var(--theme-light)}.header-actions{display:flex;align-items:center}.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--theme);color:var(--on-theme);border-radius:999px;box-shadow:var(--shadow-soft);font-weight:800;padding:11px 22px;transition:.2s}.main-btn:hover{background:var(--theme-hover);transform:translateY(-1px)}.mobile-menu-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);border-radius:12px}.mobile-menu-toggle span{display:block;height:2px;background:var(--on-dark);width:20px;margin:0 auto}.mobile-drawer{position:fixed;top:0;left:0;width:82%;max-width:320px;height:100vh;transform:translateX(-100%);transition:transform .28s ease;z-index:10001;background:var(--theme-dark);color:var(--on-dark);padding:18px;overflow-y:auto}.mobile-drawer.is-open{transform:translateX(0)}.drawer-overlay{position:fixed;inset:0;opacity:0;visibility:hidden;z-index:10000;background:rgba(0,0,0,.52);transition:.28s}.drawer-overlay.is-open{opacity:1;visibility:visible}body.menu-open{overflow:hidden}.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.drawer-close{font-size:30px;color:var(--on-dark);background:transparent;border:0}.mobile-nav{display:grid;gap:8px}.mobile-nav a{color:var(--on-dark);padding:12px;border-radius:12px;background:rgba(255,255,255,.08);font-weight:700}.section{padding:72px 0}.hero,.hero-section{display:grid;gap:40px;padding:72px 0}.hero{align-items:center}.eyebrow,.tag{display:inline-flex;color:var(--theme-dark);background:var(--theme-soft);border:1px solid var(--theme-border);border-radius:999px;padding:7px 14px;font-weight:800;margin:0 8px 10px 0}.hero h1,h1{font-size:42px;line-height:1.08;margin:16px 0;color:var(--theme-dark);letter-spacing:-.03em}h2,.section-title{font-size:32px;line-height:1.18;margin:0 0 18px;color:var(--theme-dark)}h3{color:var(--theme-dark);margin:0 0 10px}.lead{font-size:18px;color:var(--text-main);max-width:780px}.hero-visual,.visual-card{background:linear-gradient(145deg,var(--white),var(--theme-soft));border:1px solid var(--theme-border);border-radius:32px;box-shadow:var(--shadow-soft);padding:30px;min-height:360px;display:flex;align-items:center;justify-content:center}.hero-visual img{width:min(520px,100%);object-fit:contain}.content-img,.app-section img,.hero-visual img{max-width:100%;height:auto;object-fit:contain}.card,.zone-card,.info-card,.faq-item,.notice{background:var(--white);color:var(--text-main);border:1px solid var(--theme-border);box-shadow:var(--shadow-soft);border-radius:24px;padding:24px}.notice{background:linear-gradient(135deg,var(--white),var(--theme-soft));border-left:6px solid var(--theme)}.grid,.feature-grid,.zone-grid,.quick-grid,.faq{display:grid;gap:22px}.quick-grid{grid-template-columns:1fr}.category-pill{background:var(--white);border:1px solid var(--theme-border);border-radius:22px;padding:22px;box-shadow:var(--shadow-soft)}.category-number,.highlight{color:var(--theme-dark);font-weight:900}.text-link{color:var(--theme);font-weight:800}.text-link:hover{color:var(--theme-hover)}.service-strip{background:linear-gradient(135deg,var(--theme-soft),var(--white));border:1px solid var(--theme-border);border-radius:28px;padding:28px;box-shadow:var(--shadow-soft)}.content-split,.app-section,.security-section,.wide-layout{display:grid;gap:40px;align-items:center}.app-section{background:linear-gradient(135deg,var(--white),var(--theme-soft));border:1px solid var(--theme-border);border-radius:34px;padding:28px;box-shadow:var(--shadow-soft)}.app-section img{max-height:460px;margin:auto}.list{display:grid;gap:10px;margin:18px 0;padding:0;list-style:none}.list li{padding:12px 14px;background:var(--theme-soft);border:1px solid var(--theme-border);border-radius:14px}.footer{background:var(--theme-deep);color:var(--on-dark);padding:54px 0 0}.footer-inner{display:grid;gap:28px}.footer a{color:var(--on-dark);display:block;margin:8px 0}.footer a:hover{color:var(--theme-light)}.footer-brand p,.footer-bottom{color:rgba(255,255,255,.86)}.footer-bottom{border-top:1px solid rgba(255,255,255,.18);margin-top:32px;padding:18px 24px;text-align:center}.footer-links h3{color:var(--on-dark)}
@media (min-width:768px){.quick-grid{grid-template-columns:repeat(2,1fr)}.grid,.feature-grid,.zone-grid,.faq{grid-template-columns:repeat(2,1fr)}.footer-inner{grid-template-columns:1.4fr 1fr 1fr 1fr}.hero h1,h1{font-size:52px}.section{padding:86px 0}.app-section{padding:42px}}
@media (min-width:1024px){body{font-size:18px}.main-nav{display:flex}.mobile-menu-toggle{display:none}.hero,.hero-section{grid-template-columns:minmax(0,1.15fr) minmax(420px,.85fr);align-items:center;padding:96px 0}.hero h1,h1{font-size:64px}.hero p{font-size:20px}.content-split{grid-template-columns:repeat(2,minmax(0,1fr));align-items:center}.app-section{grid-template-columns:.9fr 1.1fr}.security-section{grid-template-columns:.85fr 1.15fr}.feature-grid.info-four{grid-template-columns:repeat(4,1fr)}.grid.three{grid-template-columns:repeat(3,1fr)}.zone-grid{grid-template-columns:repeat(4,1fr)}.quick-grid{grid-template-columns:repeat(6,1fr)}.faq{grid-template-columns:repeat(2,1fr)}.wide-layout{grid-template-columns:1fr 1fr}.section-title,h2{font-size:40px}.section{padding:100px 0}.card,.zone-card,.info-card,.faq-item,.notice{padding:28px}}
@media (min-width:1280px){.container,.section-inner,.header-inner,.footer-inner{width:min(1240px,calc(100% - 64px))}.hero h1,h1{font-size:70px}.hero-visual{min-height:500px}.hero-visual img{width:min(620px,100%)}}

/* Bổ sung cho phiên bản chống chồng logo và bố cục màn hình rộng */
.container,.section-inner,.hero-inner,.header-inner,.footer-inner{width:min(1280px,calc(100% - 80px));margin-left:auto;margin-right:auto}.mobile-header{display:grid;grid-template-columns:48px minmax(0,1fr) auto;align-items:center;gap:10px;min-height:64px;padding:8px 14px}.site-logo{display:inline-flex;align-items:center;justify-content:center;min-width:0;overflow:hidden}.site-logo img{display:block;width:auto;height:auto;max-width:190px;max-height:64px;object-fit:contain}.mobile-menu-toggle{width:44px;height:44px;flex:0 0 auto}.mobile-register{display:inline-flex;align-items:center;justify-content:center;background:var(--theme);color:var(--on-theme);font-weight:800;flex:0 0 auto;white-space:nowrap;min-width:max-content;padding:10px 16px;border-radius:999px;box-shadow:var(--shadow-soft)}.mobile-register:hover{background:var(--theme-hover)}.logo{display:none}.hero-section{padding:0}.hero-inner{padding:72px 0}.hero-section.container{width:auto;margin:0}.hero-section.container>*{max-width:none}.hero-visual{width:100%;min-height:420px}.hero-visual img{width:min(100%,560px);max-height:520px;object-fit:contain}.header-inner{display:none}.mobile-header .site-logo{justify-self:center}.mobile-header .mobile-menu-toggle{justify-self:start}.mobile-header .mobile-register{justify-self:end}
@media (max-width:390px){.mobile-header{grid-template-columns:44px minmax(0,1fr) auto;gap:8px;padding:8px 10px}.site-logo img{max-width:min(120px,36vw);max-height:42px}.mobile-register{padding:8px 12px;font-size:13px}}
@media (max-width:767px){.container,.section-inner,.hero-inner,.header-inner,.footer-inner{width:min(100% - 32px,1280px)}.hero-inner{padding:54px 0}.hero-visual{min-height:280px}.hero-visual img{width:min(100%,360px);max-height:340px}h1{font-size:clamp(32px,9vw,48px);line-height:1.12}}
@media (max-width:1023px){.site-logo img{max-width:min(150px,42vw);max-height:48px}.main-nav,.header-actions{display:none!important}.mobile-header{display:grid}}
@media (min-width:1024px){.mobile-header{display:none}.header-inner{display:flex}.header-inner .site-logo{flex:0 0 auto}.hero-inner{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(460px,.95fr);align-items:center;gap:64px;padding:96px 0}.hero,.hero-section{display:block}.hero-section.container{width:auto;margin:0}h1{font-size:clamp(52px,5vw,72px);line-height:1.05}.hero-visual{min-height:420px}.quick-grid{grid-template-columns:repeat(6,1fr)}}
@media (min-width:1280px){.hero-visual img{width:min(100%,600px)}}
@media (min-width:1440px){.container,.section-inner,.hero-inner,.header-inner,.footer-inner{width:min(1360px,calc(100% - 120px))}.hero-inner{grid-template-columns:minmax(0,1fr) minmax(520px,.95fr);gap:80px}.hero-visual img{width:min(100%,620px)}}