:root{
  --red:#b60000;
  --red-dark:#8e0000;
  --blue:#0052a3;
  --gold:#f2b705;
  --text:#1f2933;
  --muted:#6b7280;
  --light:#f7f9fc;
  --white:#ffffff;
  --shadow:0 12px 30px rgba(0,0,0,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,"Times New Roman",sans-serif;color:var(--text);background:#fff;line-height:1.6}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}.container{width:min(1180px,92%);margin:auto}
.welcome{background:var(--blue);color:#fff;font-size:14px}.welcome__inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.welcome p{margin:8px 0}
.masthead{background:#fff;border-bottom:1px solid #e5e7eb}.masthead__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}.brand{display:flex;align-items:center;gap:12px}.brand__logo{width:70px;height:70px;object-fit:contain;border-radius:8px}.brand strong{display:block;color:var(--red);font-size:24px;text-transform:uppercase}.brand small{display:block;color:var(--blue);font-weight:700}.hotline{text-align:right}.hotline span{display:block;color:var(--muted);font-size:14px}.hotline strong{color:var(--red);font-size:18px}.menu-button{display:none;background:var(--red);border:0;border-radius:8px;padding:9px;cursor:pointer}.menu-button span{display:block;width:24px;height:3px;background:#fff;margin:4px 0;border-radius:4px}
.nav{background:var(--red)}.nav__inner{display:flex;justify-content:center;gap:4px;flex-wrap:wrap}.nav a{color:#fff;font-weight:700;padding:14px 18px}.nav a:hover{background:var(--red-dark)}
.hero{position:relative;min-height:440px;background:linear-gradient(135deg,var(--blue),var(--red));overflow:hidden}.hero img{width:100%;height:440px;object-fit:cover;opacity:.88}.hero__overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,82,163,.35),rgba(182,0,0,.22))}
section{padding:56px 0}.section-title{text-align:center;margin-bottom:28px}.section-title p,.eyebrow{margin:0;color:var(--red);font-weight:700;text-transform:uppercase;letter-spacing:.05em}.section-title h2{margin:6px 0 0;font-size:34px;color:var(--blue)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.service-tile{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:24px;min-height:165px;box-shadow:0 8px 20px rgba(0,0,0,.06);transition:.2s}.service-tile:hover{background:#6EC2F7;transform:translateY(-4px);box-shadow:var(--shadow)}.service-tile span{color:var(--gold);font-weight:800}.service-tile strong{display:block;font-size:22px;color:var(--blue);margin-top:14px}.service-tile em{display:block;color:var(--red);font-style:normal;font-weight:700}.service-tile small{display:inline-block;margin-top:12px;color:var(--muted)}
.promo{background:var(--light)}.promo__inner{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}.promo h2,.contact h2{font-size:32px;color:var(--blue);margin:8px 0}.promo-cards{display:grid;gap:14px}.promo-cards article{background:#fff;border-left:5px solid var(--red);padding:18px;border-radius:12px;box-shadow:0 6px 16px rgba(0,0,0,.06)}.promo-cards strong{display:block;color:var(--red);font-size:19px}
.media-section{background:#fff}.media-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.video-box{min-height:270px;border-radius:18px;background:linear-gradient(135deg,var(--red),var(--blue));color:#fff;padding:36px;display:flex;flex-direction:column;justify-content:center;text-align:center}.play{width:72px;height:72px;margin:0 auto 15px;border-radius:50%;background:rgba(255,255,255,.22);display:grid;place-items:center;font-size:30px}.quick-info{background:var(--light);border-radius:18px;padding:28px}.quick-info h2{color:var(--red);margin-top:0}.quick-info ul{padding-left:20px}
.news{background:var(--light)}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news article,.support-grid a,.testimonials blockquote{background:#fff;border-radius:14px;padding:22px;box-shadow:0 6px 18px rgba(0,0,0,.06)}.news time{display:inline-block;background:var(--red);color:#fff;border-radius:8px;padding:5px 10px;font-weight:700}.news span{display:block;margin-top:12px;color:var(--muted);font-size:14px}.news h3{color:var(--blue);font-size:20px}.news a{color:var(--red);font-weight:700}
.support-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.support-grid a{text-align:center;border:2px solid transparent}.support-grid a:hover{border-color:var(--gold)}.support-grid strong{display:block;color:var(--blue);font-size:24px}.support-grid em{display:block;color:var(--red);font-style:normal;font-weight:700}.support-grid small{display:block;margin-top:10px;color:var(--muted)}
.testimonials{background:#fff}.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.testimonials blockquote{margin:0}.testimonials p{font-size:18px}.testimonials cite{color:var(--red);font-weight:700;font-style:normal}
.contact{background:linear-gradient(135deg,#f8fbff,#fff4f4)}.contact__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px;align-items:start}.contact-form{background:#fff;border-radius:16px;padding:24px;box-shadow:var(--shadow);display:grid;gap:14px}.contact-form label{font-weight:700;color:var(--blue)}input,select,textarea{width:100%;margin-top:6px;border:1px solid #d1d5db;border-radius:10px;padding:12px;font:inherit}.button{border:0;border-radius:10px;padding:13px 18px;font-weight:800;cursor:pointer}.button--gold{background:var(--gold);color:#4b3200}.form-note{margin:0;color:var(--red);font-weight:700}
.footer{background:#0f172a;color:#fff;padding:32px 0}.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px}.footer strong{color:var(--gold);font-size:20px}.footer span{color:#cbd5e1;font-weight:700}.footer a{display:block;color:#fff;margin-top:5px}
@media(max-width:820px){.masthead__inner{align-items:flex-start}.hotline{display:none}.menu-button{display:block}.nav__inner{display:none;flex-direction:column;align-items:stretch}.nav.nav--open .nav__inner{display:flex}.nav a{padding:12px}.brand strong{font-size:18px}.hero,.hero img{min-height:260px;height:260px}.service-grid,.news-grid,.testimonial-grid,.promo__inner,.media-grid,.contact__grid,.footer__grid{grid-template-columns:1fr}.support-grid{grid-template-columns:1fr}.section-title h2{font-size:28px}}

.video-box--embed{background:#fff;color:var(--text);padding:24px;box-shadow:var(--shadow);border:1px solid #e5e7eb;text-align:left}.video-box--embed h2{color:var(--blue);text-align:center;margin-top:0}.video-frame{position:relative;width:100%;padding-bottom:56.25%;border-radius:14px;overflow:hidden;background:#000;box-shadow:0 10px 24px rgba(0,0,0,.18)}.video-frame iframe{position:absolute;inset:0;width:100%;height:100%}.video-box--embed p{text-align:center;margin-bottom:0;color:var(--muted)}.floating-actions{position:fixed;right:18px;bottom:18px;display:grid;gap:10px;z-index:1000}.floating-actions a{display:block;border-radius:999px;padding:12px 16px;color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(0,0,0,.22)}.floating-actions__phone{background:var(--red)}.floating-actions__zalo{background:var(--blue)}@media(max-width:820px){.floating-actions{left:12px;right:12px;grid-template-columns:1fr 1fr}.floating-actions a{text-align:center;font-size:13px;padding:10px 8px}.brand__logo{width:58px;height:58px}.video-box--embed{padding:16px}}