:root {
  --navy-900: #1f2a0d;
  --navy-800: #2c3a14;
  --navy-700: #435420;
  --blue-600: #5c7a24;
  --blue-500: #86a83a;
  --gray-900: #1a1d24;
  --gray-600: #5a6472;
  --gray-300: #d7dce3;
  --gray-100: #f4f6f9;
  --white: #ffffff;
  --radius: 10px;
  --shadow: 0 4px 20px rgba(31, 42, 13, 0.08);
  --container-width: 1140px;
  --font: "Segoe UI", "Helvetica Neue", Arial, "Inter", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--gray-900);
  line-height: 1.6;
  background: var(--white);
}

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

a { text-decoration: none; color: inherit; }

h1, h2, h3, h4 { line-height: 1.25; color: var(--navy-900); }

h2 { font-size: clamp(1.6rem, 2.5vw, 2.1rem); margin-bottom: 16px; }

.section { padding: 80px 0; }

.section-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--blue-600);
  margin-bottom: 10px;
}
.section-label.center { text-align: center; }
h2.center { text-align: center; max-width: 640px; margin-left: auto; margin-right: auto; }

.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary {
  background: var(--blue-600);
  color: var(--white);
}
.btn-primary:hover { background: var(--navy-700); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  border-color: var(--navy-800);
  color: var(--navy-800);
}
.btn-outline:hover { background: var(--navy-800); color: var(--white); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--gray-300);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  color: var(--navy-900);
}
.logo-img {
  height: 38px;
  width: auto;
}
.logo span { color: var(--blue-600); }

.nav-wrapper { display: flex; align-items: center; gap: 20px; }
.main-nav { display: flex; gap: 6px; }
.main-nav a {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--gray-900);
  padding: 9px 16px;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}
.main-nav a:hover { background: var(--gray-100); color: var(--blue-600); }
.main-nav a.active {
  background: var(--blue-600);
  color: #ffffff;
}
.main-nav a.active:hover { color: #ffffff; }

.header-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy-900);
  display: block;
}

/* Hero */
.hero {
  background:
    linear-gradient(160deg, rgba(31,42,13,0.62) 0%, rgba(44,58,20,0.55) 55%, rgba(134,168,58,0.45) 130%),
    url('../images/hero-home.jpg?v=2');
  background-size: cover;
  background-position: center;
  color: var(--white);
  padding: 110px 0 100px;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 700;
  color: #d4e88a;
  margin-bottom: 18px;
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  max-width: 780px;
  margin-bottom: 22px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.35);
}
.hero-sub {
  max-width: 620px;
  color: #e4ecc9;
  font-size: 1.05rem;
  margin-bottom: 36px;
  text-shadow: 0 1px 10px rgba(0,0,0,0.3);
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero .btn-outline { border-color: #ffffff; color: var(--white); }
.hero .btn-outline:hover { background: var(--white); color: var(--navy-900); }

/* Page hero (sub-pages) */
.page-hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 60%, var(--blue-600) 140%);
  color: var(--white);
  padding: 70px 0;
}
.page-hero h1 {
  color: var(--white);
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  max-width: 720px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.35);
}
.page-hero.about-hero {
  background:
    linear-gradient(160deg, rgba(31,42,13,0.62) 0%, rgba(44,58,20,0.55) 55%, rgba(134,168,58,0.45) 130%),
    url('../images/hero-about.jpg?v=2');
  background-size: cover;
  background-position: center;
}
.page-hero.products-hero {
  background:
    linear-gradient(160deg, rgba(31,42,13,0.62) 0%, rgba(44,58,20,0.55) 55%, rgba(134,168,58,0.45) 130%),
    url('../images/hero-products.jpg?v=2');
  background-size: cover;
  background-position: center;
}
.page-hero.services-hero {
  background:
    linear-gradient(160deg, rgba(31,42,13,0.62) 0%, rgba(44,58,20,0.55) 55%, rgba(134,168,58,0.45) 130%),
    url('../images/hero-services.jpg');
  background-size: cover;
  background-position: center;
}
.page-hero.contact-hero {
  background:
    linear-gradient(160deg, rgba(31,42,13,0.62) 0%, rgba(44,58,20,0.55) 55%, rgba(134,168,58,0.45) 130%),
    url('../images/hero-contact.jpg');
  background-size: cover;
  background-position: center;
}
.page-hero .eyebrow { margin-bottom: 10px; }

/* CTA banner */
.cta-banner {
  background: var(--gray-100);
  padding: 64px 0;
}
.cta-banner-inner {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.cta-banner-inner p { color: var(--gray-600); margin: 12px 0 24px; }

/* Section CTA link (home page teasers) */
.section-cta { text-align: center; margin-top: 40px; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.about-text p { color: var(--gray-600); margin-bottom: 16px; }
.about-text .btn { margin-top: 8px; }

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.highlight-card {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 0 0 20px;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.highlight-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.highlight-image { width: 100%; height: 125px; object-fit: cover; object-position: center; margin-bottom: 18px; }
.highlight-card h3 { font-size: 1rem; margin: 0 20px 6px; }
.highlight-card p { font-size: 0.88rem; color: var(--gray-600); margin: 0 20px; }
.form-honeypot { position: absolute!important; left: -9999px!important; width: 1px!important; height: 1px!important; overflow: hidden!important; }
.contact-form button:disabled { opacity: .65; cursor: wait; transform: none; }
.form-note.error { color: #a3261a; }

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 34px 28px;
  box-shadow: var(--shadow);
}
.service-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: var(--navy-900);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.service-card > p { color: var(--gray-600); margin-bottom: 18px; font-size: 0.95rem; }
.service-list { list-style: none; }
.service-list li {
  padding-left: 22px;
  position: relative;
  font-size: 0.9rem;
  color: var(--gray-900);
  margin-bottom: 8px;
}
.service-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--blue-500);
}

/* Products */
.products { background: var(--gray-100); }
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.product-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.product-thumb {
  width: 100%;
  height: 190px;
  border-radius: 8px;
  background: var(--gray-100);
  color: var(--blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  overflow: hidden;
}
.product-thumb svg { width: 34px; height: 34px; }
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-tag {
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--blue-600);
  margin-bottom: 8px;
}
.product-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.product-card > p:not(.product-tag) { font-size: 0.9rem; color: var(--gray-600); margin-bottom: 16px; }
.product-link { font-size: 0.9rem; font-weight: 600; color: var(--blue-600); }
.product-link:hover { color: var(--navy-800); }
.products-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-top: 32px;
}

/* Why us */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
}
.why-text p { color: var(--gray-600); margin-top: 14px; }
.why-list { display: flex; flex-direction: column; gap: 28px; }
.why-item { display: flex; gap: 20px; align-items: flex-start; }
.why-num {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--blue-500);
  flex-shrink: 0;
}
.why-item h4 { margin-bottom: 4px; font-size: 1.05rem; }
.why-item p { color: var(--gray-600); font-size: 0.92rem; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
}
.contact-sub { color: var(--gray-600); margin-bottom: 28px; }
.contact-details { list-style: none; margin-bottom: 24px; }
.contact-details li {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  font-size: 0.95rem;
}
.contact-details svg { width: 20px; height: 20px; color: var(--blue-600); flex-shrink: 0; }
.contact-details a:hover { color: var(--blue-600); }

.map-embed {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 240px;
}
.map-embed iframe { width: 100%; height: 100%; border: 0; }

.contact-form {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: fit-content;
}
.form-title { font-weight: 700; font-size: 1.1rem; color: var(--navy-900); margin-bottom: 4px; }
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--gray-900);
}
.contact-form input,
.contact-form textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 11px 14px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  background: var(--white);
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue-500);
}
.contact-form button { margin-top: 4px; }
.form-note { font-size: 0.85rem; color: var(--gray-600); min-height: 1.2em; }
.form-note.success { color: #1f7a3f; }
.form-note.error { color: #b3261e; }
.contact-form button:disabled { opacity: 0.7; cursor: not-allowed; }

/* Footer */
.site-footer {
  background: var(--navy-900);
  color: #c4d19f;
  padding: 48px 0 28px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.site-footer .logo { color: var(--white); }
.site-footer .logo span { color: #b8d66a; }
.footer-inner p { font-size: 0.85rem; margin-top: 4px; }
.footer-nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-nav a { font-size: 0.9rem; }
.footer-nav a:hover { color: var(--white); }
.footer-copy { text-align: center; font-size: 0.82rem; margin-top: 20px; }



/* Responsive */
@media (max-width: 900px) {
  .about-grid, .why-grid, .contact-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .about-highlights { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-wrapper { display: none; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .hero { padding: 90px 0 70px; }

  .site-header.nav-open .nav-wrapper {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--gray-300);
  }
  .site-header.nav-open .main-nav {
    flex-direction: column;
    gap: 16px;
  }
  .site-header.nav-open .header-cta {
    text-align: center;
  }
}

/* Floating contact actions */
.floating-actions {
  position: fixed;
  right: 20px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  z-index: 300;
}
.floating-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  max-width: 50px;
  padding-right: 0;
  border-radius: 999px;
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
  transition: transform 0.15s ease, max-width 0.3s ease, padding-right 0.3s ease;
  white-space: nowrap;
  overflow: hidden;
}
.floating-btn:hover {
  transform: scale(1.04);
  max-width: 260px;
  padding-right: 18px;
}
.icon-wrap {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.floating-btn svg { width: 24px; height: 24px; }
.floating-btn img { width: 100%; height: 100%; object-fit: cover; }
.floating-btn.zalo {
  background: #0068ff;
}
.floating-btn.zalo .icon-wrap {
  background: #ffffff;
}
.floating-btn.call {
  background: #25b34b;
  animation: pulse-ring 2.2s infinite;
}
.floating-label {
  font-size: 0.9rem;
  font-weight: 700;
  flex-shrink: 0;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 6px 18px rgba(0,0,0,0.28), 0 0 0 0 rgba(37,179,75,0.55); }
  70% { box-shadow: 0 6px 18px rgba(0,0,0,0.28), 0 0 0 14px rgba(37,179,75,0); }
  100% { box-shadow: 0 6px 18px rgba(0,0,0,0.28), 0 0 0 0 rgba(37,179,75,0); }
}

/* Receptionist greeter */
.receptionist {
  position: fixed;
  left: 16px;
  bottom: 0;
  z-index: 300;
  pointer-events: none;
  width: 260px;
  overflow: hidden;
}
.receptionist img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 8px 12px rgba(0,0,0,0.28));
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.45s ease, opacity 0.45s ease;
}
.receptionist.visible img {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 480px) {
  .floating-actions { right: 12px; bottom: 12px; gap: 10px; }
  .floating-btn { height: 44px; padding-right: 14px; gap: 8px; }
  .icon-wrap { width: 44px; height: 44px; }
  .floating-btn svg { width: 20px; height: 20px; }
  .floating-label { font-size: 0.78rem; }
  .receptionist { left: 8px; width: 184px; }
}

/* Product detail page */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.detail-image {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--gray-100);
}
.detail-image img { width: 100%; height: 100%; object-fit: cover; }
.detail-info h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 8px 0 6px;
}
.detail-sku {
  color: var(--gray-600);
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.detail-desc {
  color: var(--gray-600);
  margin-bottom: 20px;
}
.option-groups { margin-bottom: 8px; }
.option-group { margin-bottom: 18px; }
.option-label {
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--gray-900);
  margin-bottom: 8px;
}
.option-choices { display: flex; gap: 8px; flex-wrap: wrap; }
.option-btn {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--gray-300);
  background: var(--white);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.option-btn:hover { border-color: var(--blue-600); }
.option-btn.active {
  background: var(--blue-600);
  border-color: var(--blue-600);
  color: #ffffff;
}
.spec-list {
  list-style: none;
  margin-bottom: 28px;
  border-top: 1px solid var(--gray-300);
}
.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-300);
  font-size: 0.92rem;
}
.spec-label { color: var(--gray-600); }
.spec-value { font-weight: 600; color: var(--gray-900); text-align: right; }

/* Category block with sub-product model cards */
.category-block { margin-bottom: 52px; }
.category-header { margin-bottom: 20px; }
.category-header h3 { font-size: 1.25rem; margin: 4px 0 6px; }
.category-header p:not(.product-tag) { color: var(--gray-600); max-width: 640px; }

.model-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.model-card {
  display: block;
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 14px;
  color: inherit;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.model-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.model-card img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--gray-100);
  margin-bottom: 12px;
}
.model-card h4 { font-size: 0.92rem; color: var(--navy-900); margin-bottom: 4px; }
.model-card p {
  font-size: 0.8rem;
  color: var(--gray-600);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 900px) {
  .model-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .model-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .detail-grid { grid-template-columns: 1fr; }
  .detail-image { max-height: 340px; }
}

/* Catalog 2026 */
.hero-catalog-sub{max-width:650px;margin-top:14px;color:#eef4dc}
.catalog-section{background:#f7f8f4}
.catalog-tools{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:14px}
.catalog-search{display:flex;flex-direction:column;gap:7px;font-weight:700;color:var(--navy-900)}
.catalog-search input{width:min(360px,86vw);padding:12px 15px;border:1px solid var(--gray-300);border-radius:10px;font:inherit;background:#fff}
.catalog-search input:focus{outline:2px solid rgba(92,122,36,.25);border-color:var(--blue-600)}
.category-filters{display:flex;gap:8px;flex-wrap:wrap}
.filter-btn{padding:9px 14px;border:1px solid var(--gray-300);border-radius:999px;background:#fff;font:600 .85rem var(--font);cursor:pointer}
.filter-btn.active{background:var(--blue-600);border-color:var(--blue-600);color:#fff}
.catalog-count{font-size:.86rem;color:var(--gray-600);margin-bottom:35px}
.catalog-group{margin-bottom:54px}
.catalog-group-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--gray-300);padding-bottom:12px;margin-bottom:20px}
.catalog-group-head h2{margin:0;font-size:1.45rem}
.catalog-group-head span{font-size:.85rem;color:var(--gray-600)}
.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.catalog-card{display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--gray-300);border-radius:14px;box-shadow:0 2px 12px rgba(31,42,13,.05);transition:.18s}
.catalog-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b5c68b}
.catalog-image{height:240px;background:#eef1e8;overflow:hidden}
.catalog-image img{width:100%;height:100%;object-fit:cover;transition:transform .25s}
.catalog-card:hover .catalog-image img{transform:scale(1.025)}
.catalog-card-body{display:flex;flex:1;flex-direction:column;padding:20px}
.catalog-card h3{font-size:1.08rem;margin-bottom:5px}
.catalog-sku{font-size:.78rem;color:#7a8370;margin-bottom:11px}
.catalog-description{font-size:.88rem;color:var(--gray-600);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px}
.catalog-card-foot{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid #eaede5}
.catalog-card-foot strong{color:#b33a21;font-size:.94rem}.catalog-card-foot span{color:var(--blue-600);font-size:.82rem;font-weight:700}
.catalog-empty{text-align:center;padding:60px 20px;color:var(--gray-600)}
.product-detail-section{padding-top:38px}
.product-detail-section>.container>.product-link{display:inline-block;margin-bottom:26px}
.detail-gallery{min-width:0}.detail-image{aspect-ratio:1/1}.detail-image img{width:100%;height:100%;object-fit:cover}
.detail-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:10px}
.thumb-btn{padding:0;border:2px solid transparent;border-radius:8px;overflow:hidden;background:#eee;cursor:pointer;aspect-ratio:1}
.thumb-btn.active{border-color:var(--blue-600)}.thumb-btn img{width:100%;height:100%;object-fit:cover}
.price-box{display:flex;align-items:center;gap:13px;flex-wrap:wrap;margin:16px 0}
.sale-price{font-size:1.45rem;font-weight:800;color:#b33a21}.price-box del{color:#8a9183}
.variant-message{font-size:.86rem;color:var(--blue-600);margin:-4px 0 18px}
.detail-actions{display:flex;gap:10px;flex-wrap:wrap}.support-note{font-size:.84rem;color:var(--gray-600);margin-top:16px}.support-note a{font-weight:700;color:var(--navy-700)}
.option-btn:disabled{opacity:.38;cursor:not-allowed;text-decoration:line-through}
@media(max-width:900px){.catalog-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.catalog-grid{grid-template-columns:1fr}.catalog-image{height:280px}.catalog-tools{align-items:stretch}.category-filters{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}.filter-btn{flex:0 0 auto}.detail-thumbs{grid-template-columns:repeat(4,1fr)}}

/* Homepage product launch and slider */
.launch-feature{display:grid;grid-template-columns:1.05fr .95fr;background:#fff;border:1px solid #dfe5d3;border-radius:20px;overflow:hidden;box-shadow:0 16px 44px rgba(31,42,13,.10);margin-bottom:64px}
.launch-copy{padding:clamp(30px,5vw,62px);display:flex;flex-direction:column;justify-content:center}.launch-copy h2{font-size:clamp(1.8rem,3.4vw,2.7rem);margin:3px 0 16px}.launch-copy>p:not(.section-label){color:var(--gray-600);font-size:1rem}.launch-badge{align-self:flex-start;background:#e85c2f;color:#fff;border-radius:999px;padding:7px 12px;font-size:.76rem;font-weight:800;letter-spacing:.08em;margin-bottom:17px}.launch-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.launch-image{position:relative;min-height:430px;background:#eef1e8;overflow:hidden}.launch-image img{width:100%;height:100%;object-fit:cover}.launch-image>span{position:absolute;right:18px;top:18px;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:#e85c2f;color:#fff;font-weight:800;box-shadow:0 8px 20px rgba(0,0,0,.18)}
.home-slider-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.home-slider-head h2{margin:0}.slider-controls{display:flex;gap:9px}.slider-controls button{width:44px;height:44px;border:1px solid var(--gray-300);border-radius:50%;background:#fff;color:var(--navy-900);font-size:1.2rem;cursor:pointer}.slider-controls button:hover{background:var(--blue-600);color:#fff}
.home-slider{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(270px,31%);gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;scrollbar-width:thin}.home-slide-card{scroll-snap-align:start;background:#fff;border:1px solid var(--gray-300);border-radius:14px;overflow:hidden;transition:.18s}.home-slide-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.home-slide-image{height:225px;background:#eef1e8}.home-slide-image img{width:100%;height:100%;object-fit:cover}.home-slide-body{padding:18px}.home-slide-body h3{font-size:1.04rem;min-height:2.6em}.home-slide-price{color:#b33a21;font-weight:800;margin:10px 0}.home-slide-body>span{font-size:.85rem;color:var(--blue-600);font-weight:700}
@media(max-width:800px){.launch-feature{grid-template-columns:1fr}.launch-image{min-height:360px;grid-row:1}.home-slider{grid-auto-columns:minmax(270px,72%)}}
@media(max-width:520px){.launch-image{min-height:300px}.home-slider{grid-auto-columns:88%}.home-slider-head{align-items:center}.home-slider-head h2{font-size:1.35rem}}

/* Unified product image frames: preserve the full image without cropping */
.product-thumb,
.catalog-image,
.home-slide-image,
.launch-image,
.model-card img,
.detail-image,
.thumb-btn {
  background: #fff;
}
.product-thumb,
.catalog-image,
.home-slide-image,
.model-card img {
  aspect-ratio: 4 / 3;
  height: auto;
}
.launch-image {
  aspect-ratio: 4 / 3;
  min-height: 0;
}
.product-thumb img,
.catalog-image img,
.home-slide-image img,
.launch-image img,
.model-card img,
.detail-image img,
.thumb-btn img {
  object-fit: contain;
  object-position: center;
}
.detail-image {
  aspect-ratio: 1 / 1;
  max-height: none;
}

/* Product directory navigation */
.main-nav { align-items: center; }
.nav-products-tree { position: relative; }
.nav-products-trigger {
  position: relative;
  display: flex;
  align-items: center;
  border-radius: 999px;
}
.nav-products-link {
  padding-right: 38px!important;
}
.nav-products-expand {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  width: 24px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: inherit;
  padding: 0;
  cursor: pointer;
}
.nav-products-tree:hover .nav-products-trigger,
.nav-products-tree.open .nav-products-trigger { background: var(--gray-100); color: var(--blue-600); }
.nav-products-link.active { background: var(--blue-600)!important; color: #fff!important; border-radius: 999px!important; }
.nav-products-expand span { width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 5px solid currentColor; transition: transform .18s ease; }
.nav-products-link.active + .nav-products-expand { color: #fff; }
.nav-products-tree.open .nav-products-expand span { transform: rotate(180deg); }
.nav-products-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: -190px;
  width: min(820px, calc(100vw - 48px));
  max-height: min(72vh, 620px);
  overflow-y: auto;
  padding: 18px;
  border: 1px solid var(--gray-300);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(31,42,13,.18);
}
.nav-products-tree:hover .nav-products-menu,
.nav-products-tree:focus-within .nav-products-menu,
.nav-products-tree.open .nav-products-menu { display: block; }
.nav-products-all { display: block; margin-bottom: 12px; padding: 9px 12px!important; border-radius: 9px!important; background: var(--gray-100); color: var(--blue-600)!important; }
.nav-products-groups { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px 24px; }
.nav-product-group { min-width: 0; padding: 10px 0; border-top: 1px solid #edf0e8; }
.nav-group-link { display: flex!important; align-items: flex-start; gap: 7px; padding: 5px 7px!important; border-radius: 7px!important; color: var(--navy-800)!important; font-size: .9rem!important; font-weight: 800!important; }
.folder-icon { color: var(--blue-600); flex: 0 0 auto; }
.nav-product-children { margin-left: 12px; padding-left: 12px; border-left: 1px solid #dfe5d3; }
.nav-product-children a { display: block; padding: 5px 8px!important; border-radius: 6px!important; color: var(--gray-600)!important; font-size: .82rem!important; font-weight: 500!important; line-height: 1.35; }
.nav-product-children a:hover { color: var(--blue-600)!important; background: var(--gray-100); }

@media (max-width:720px) {
  .main-nav { align-items: stretch; }
  .nav-products-trigger { width: 100%; }
  .nav-products-link { flex: 1; }
  .nav-products-expand { width: 38px; height: 38px; right: 4px; }
  .nav-products-menu {
    position: static;
    width: 100%;
    max-height: 55vh;
    margin-top: 7px;
    padding: 12px;
    border-radius: 10px;
    box-shadow: none;
  }
  .nav-products-tree:hover .nav-products-menu,
  .nav-products-tree:focus-within .nav-products-menu { display: none; }
  .nav-products-tree.open .nav-products-menu { display: block; }
  .nav-products-groups { grid-template-columns: 1fr; gap: 2px; }
}

/* Warranty registration */
.warranty-hero { background: linear-gradient(110deg, rgba(22,42,73,.96), rgba(34,92,113,.88)), url('../images/hero-contact.jpg') center/cover; }
.warranty-hero p:last-child { max-width: 620px; margin-top: 14px; color: rgba(255,255,255,.86); font-size: 1.05rem; }
.warranty-layout { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(360px,.75fr); gap: clamp(36px,6vw,84px); align-items: start; }
.warranty-copy h2 { margin: 8px 0 16px; }
.warranty-copy > p { max-width: 660px; }
.warranty-points { list-style: none; margin: 30px 0 0; padding: 0; display: grid; gap: 18px; }
.warranty-points li { display: flex; align-items: flex-start; gap: 14px; }
.warranty-points li > span { flex: 0 0 38px; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: var(--blue-600); color: #fff; font-weight: 800; }
.warranty-points strong,.warranty-points small { display: block; }
.warranty-points small { margin-top: 3px; color: var(--gray-600); font-size: .92rem; line-height: 1.5; }
.warranty-address { margin-top: 28px; padding: 20px 22px; border: 1px solid #dce5cd; border-left: 4px solid var(--blue-600); border-radius: 10px; background: var(--gray-100); }
.warranty-address p { margin: 3px 0; }
.warranty-address-title { margin-bottom: 8px!important; color: var(--blue-600); font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.warranty-address a { color: var(--blue-600); font-weight: 800; }
.warranty-address small { display: block; margin-top: 10px; color: var(--gray-600); font-size: .88rem; line-height: 1.5; }
.warranty-form { position: sticky; top: 110px; }
.warranty-form input[name="serial_number"] { letter-spacing: .06em; font-weight: 700; text-transform: uppercase; }
.warranty-privacy { margin: 14px 0 0; color: var(--gray-600); font-size: .82rem; text-align: center; }
@media (max-width:860px) { .warranty-layout { grid-template-columns: 1fr; } .warranty-form { position: static; } }

/* Warranty page v40 - activation and service-return flows */
html { scroll-behavior: smooth; }
.warranty-choice-section { padding-top: 42px; padding-bottom: 24px; background: #f7f9fb; }
.warranty-choice-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px; }
.warranty-choice-card { display: flex; gap: 22px; min-height: 190px; padding: 28px; border: 1px solid #dce5ea; border-radius: 16px; background: #fff; color: inherit; text-decoration: none; box-shadow: 0 12px 32px rgba(20,48,72,.06); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.warranty-choice-card:hover { transform: translateY(-3px); border-color: var(--blue-600); box-shadow: 0 16px 38px rgba(20,48,72,.11); }
.warranty-choice-number { flex: 0 0 54px; width: 54px; height: 54px; display: grid; place-items: center; border-radius: 14px; background: var(--blue-600); color: #fff; font-size: 1.05rem; font-weight: 800; }
.warranty-choice-card-support .warranty-choice-number { background: #173c5c; }
.warranty-choice-kicker { margin: 0 0 5px; color: var(--blue-600); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.warranty-choice-card h2 { margin: 0 0 8px; font-size: clamp(1.25rem,2vw,1.55rem); }
.warranty-choice-card p { margin-top: 0; color: var(--gray-600); line-height: 1.6; }
.warranty-choice-link { display: inline-block; margin-top: 4px; color: var(--blue-600); font-weight: 800; }
.warranty-activation { scroll-margin-top: 86px; }
.warranty-purpose-note { display: grid; gap: 4px; margin: 18px 0; padding: 15px 17px; border-left: 4px solid var(--blue-600); border-radius: 8px; background: #eef6fb; }
.warranty-purpose-note strong { color: #173c5c; }
.warranty-purpose-note span { color: var(--gray-600); font-size: .92rem; line-height: 1.5; }
.warranty-form-intro { margin: -4px 0 18px; color: var(--gray-600); font-size: .9rem; line-height: 1.5; }
.warranty-send-section { scroll-margin-top: 86px; background: #f7f9fb; }
.warranty-send-heading { max-width: 780px; margin-bottom: 30px; }
.warranty-send-heading h2 { margin: 8px 0 14px; }
.warranty-send-heading > p:last-child { color: var(--gray-600); line-height: 1.7; }
.warranty-send-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.warranty-send-card { padding: 28px; border: 1px solid #dce5ea; border-radius: 16px; background: #fff; box-shadow: 0 10px 28px rgba(20,48,72,.05); }
.warranty-send-card h3 { margin: 8px 0 16px; font-size: 1.3rem; }
.warranty-send-card p { line-height: 1.65; }
.warranty-send-icon { width: 44px; height: 44px; display: grid; place-items: center; margin: 0; border-radius: 12px; background: #e8f2f7; color: var(--blue-600); font-size: 1.3rem; font-weight: 900; }
.warranty-send-contact { margin-top: 18px; }
.warranty-send-contact a { color: var(--blue-600); font-size: 1.15rem; font-weight: 800; }
.warranty-zalo-btn { margin-top: 14px; }
.warranty-send-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.warranty-send-steps li { display: flex; gap: 13px; align-items: flex-start; }
.warranty-send-steps li > span { flex: 0 0 30px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: #173c5c; color: #fff; font-size: .82rem; font-weight: 800; }
.warranty-send-steps p { margin: 2px 0 0; color: var(--gray-600); }
.warranty-send-notice { margin-top: 24px; padding: 18px 20px; border: 1px solid #f0d9a5; border-radius: 12px; background: #fff8e8; color: #5d4a1f; line-height: 1.6; }
@media (max-width: 760px) {
  .warranty-choice-grid,.warranty-send-grid { grid-template-columns: 1fr; }
  .warranty-choice-card { min-height: 0; padding: 22px; gap: 16px; }
  .warranty-choice-number { flex-basis: 46px; width: 46px; height: 46px; }
  .warranty-send-card { padding: 22px; }
}


/* SEO content for product detail pages */
.product-seo{max-width:980px;margin:46px auto 0;padding-top:12px;border-top:1px solid rgba(0,0,0,.08);line-height:1.75}.product-seo h2{margin:30px 0 12px;font-size:1.65rem;line-height:1.3}.product-seo p{margin:0 0 14px}.product-seo ul{margin:8px 0 18px;padding-left:24px}.product-seo li{margin:7px 0}.seo-faq-list{display:grid;gap:10px}.seo-faq{border:1px solid rgba(0,0,0,.10);border-radius:12px;padding:0 16px;background:#fff}.seo-faq summary{cursor:pointer;font-weight:700;padding:14px 0}.seo-faq p{padding:0 0 14px;margin:0}.seo-cta{margin-top:28px;padding:22px;border-radius:16px;background:rgba(0,0,0,.035)}@media(max-width:720px){.product-seo{margin-top:30px}.product-seo h2{font-size:1.35rem}}



/* Header simplified without CTA + illustrative cards v48 */
.nav-wrapper { gap: 12px; }
.main-nav { justify-content: flex-end; }
.header-cta { display:none!important; }

.service-card { overflow: hidden; }
.service-image { width: calc(100% + 56px); margin: -34px -28px 20px; height: 170px; object-fit: cover; object-position: center; display: block; }
.highlight-image { background: #fff; }
@media (max-width: 900px) { .service-image { height: 160px; } }
@media (max-width: 720px) { .service-image { width: calc(100% + 48px); margin: -24px -24px 18px; height: 150px; } }

/* Knowledge hub v43 */
.knowledge-hero{padding:76px 0 64px;background:linear-gradient(120deg,#f4f8fb,#eef5f7);border-bottom:1px solid #e3ebef}.knowledge-hero h1{max-width:760px;margin:8px 0 14px;font-size:clamp(2rem,5vw,3.6rem);line-height:1.08}.knowledge-hero p:last-child{max-width:720px;color:var(--gray-600);font-size:1.06rem;line-height:1.7}.knowledge-intro{max-width:780px;margin-bottom:34px}.knowledge-intro h2{margin:0 0 10px}.knowledge-intro p{color:var(--gray-600);line-height:1.7}.knowledge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.knowledge-card{padding:24px;border:1px solid #e0e7eb;border-radius:16px;background:#fff;box-shadow:0 8px 26px rgba(18,48,70,.05)}.knowledge-card h2,.knowledge-card h3{margin:7px 0 10px;font-size:1.22rem;line-height:1.35}.knowledge-card h2 a,.knowledge-card h3 a{color:inherit;text-decoration:none}.knowledge-card h2 a:hover,.knowledge-card h3 a:hover{color:var(--blue-600)}.knowledge-card>p:not(.knowledge-cat){color:var(--gray-600);line-height:1.65}.knowledge-cat{margin:0;color:var(--blue-600);font-size:.76rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase}.section-heading-row{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}.section-heading-row h2{margin:7px 0 0}.home-knowledge{background:#f7f9fb}.knowledge-grid-home .knowledge-card{box-shadow:none}.article-page{padding:46px 0 72px}.article-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(220px,300px);gap:64px;align-items:start;justify-content:center}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px;color:var(--gray-600);font-size:.88rem}.breadcrumbs a{color:var(--blue-600);text-decoration:none}.article-main>h1{margin:8px 0 10px;font-size:clamp(2rem,4vw,3rem);line-height:1.15}.article-meta{margin:0 0 24px;color:var(--gray-600);font-size:.88rem}.article-lead{font-size:1.15rem;line-height:1.75;font-weight:500}.article-main section:not(.article-product-box):not(.related-reading){margin-top:34px}.article-main section h2{font-size:1.55rem;line-height:1.3;margin-bottom:10px}.article-main section p{line-height:1.8;color:#2d3338}.article-product-box{margin-top:42px;padding:26px;border:1px solid #dce6eb;border-radius:16px;background:#f3f8fa}.article-product-box h2{margin:7px 0 10px}.article-product-box .btn{margin-top:8px}.related-reading{margin-top:34px;padding-top:24px;border-top:1px solid #e5e8ea}.related-reading ul{padding-left:20px}.related-reading li{margin:9px 0}.related-reading a{color:var(--blue-600)}.article-sidebar{position:sticky;top:106px}.sidebar-card{display:grid;gap:0;border:1px solid #e1e7ea;border-radius:14px;background:#fff;overflow:hidden}.sidebar-card strong{padding:18px 18px 12px}.sidebar-card a{padding:11px 18px;border-top:1px solid #edf0f2;color:#31414e;text-decoration:none;font-size:.92rem}.sidebar-card a:hover{background:#f6f9fa;color:var(--blue-600)}.related-articles{margin-top:34px}.related-article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.related-article-grid a{display:flex;flex-direction:column;gap:5px;padding:18px;border:1px solid #dde5e9;border-radius:12px;text-decoration:none;color:inherit;background:#fff}.related-article-grid a:hover{border-color:var(--blue-600);box-shadow:0 8px 20px rgba(20,48,72,.07)}.related-article-grid span{color:var(--blue-600);font-size:.9rem}.main-nav a{white-space:nowrap}@media(max-width:1040px){.knowledge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:1fr}.article-sidebar{position:static}.main-nav{font-size:.9rem}}@media(max-width:700px){.knowledge-grid{grid-template-columns:1fr}.section-heading-row{display:block}.section-heading-row>.product-link{display:inline-block;margin-top:12px}.related-article-grid{grid-template-columns:1fr}.article-page{padding-top:28px}.article-layout{gap:30px}}

/* Knowledge expansion v44 */
.knowledge-topic{margin-top:54px}.knowledge-topic:first-of-type{margin-top:20px}.article-product-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.article-product-link{margin:0!important}.related-product-knowledge{margin-top:30px;padding-top:0;border-top:0}.related-product-knowledge .related-articles{margin-top:0}.related-product-knowledge .related-articles>p{color:var(--gray-600)}


/* Header navigation refinement v47: compact single-row pill buttons */
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:nowrap;
}
.logo{
  flex:0 0 auto;
  white-space:nowrap;
  font-size:1rem;
  gap:8px;
}
.logo-img{height:34px;}
.nav-wrapper{
  flex:1 1 auto;
  min-width:0;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:12px;
}
.main-nav{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:7px;
  flex-wrap:nowrap;
  min-width:0;
}
.main-nav a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:38px;
  padding:8px 12px;
  border:1px solid #d9e2cf;
  border-radius:10px;
  background:#f8faf5;
  color:var(--gray-900);
  font-size:.86rem;
  font-weight:650;
  line-height:1.1;
  white-space:nowrap;
  box-shadow:0 1px 2px rgba(31,42,13,.04);
}
.main-nav a:hover{
  background:#eef4e6;
  border-color:#b9c99f;
  color:var(--blue-600);
}
.main-nav a.active{
  background:#557b20;
  border-color:#557b20;
  color:#fff;
  box-shadow:0 2px 6px rgba(85,123,32,.18);
}
.main-nav a.active:hover{color:#fff;background:#4b6d1c;}
.header-cta{
  flex:0 0 auto;
  white-space:nowrap;
  padding:10px 16px;
  min-height:42px;
}
/* The product tree trigger should match the other pill buttons. */
.nav-products-trigger{border-radius:10px;}
.nav-products-link{padding-right:34px!important;}

@media (max-width:1280px) and (min-width:1041px){
  .header-inner{gap:10px;}
  .logo{font-size:.92rem; gap:6px;}
  .logo-img{height:30px;}
  .nav-wrapper{gap:8px;}
  .main-nav{gap:5px;}
  .main-nav a{padding:7px 9px;font-size:.80rem;min-height:36px;}
  .header-cta{padding:9px 13px;font-size:.84rem;}
}

/* Switch to the hamburger before desktop navigation has a chance to wrap or cover the brand. */
@media (max-width:1040px) and (min-width:721px){
  .nav-wrapper{display:none;}
  .nav-toggle{display:flex;}
  .site-header.nav-open .nav-wrapper{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    z-index:1000;
    background:var(--white);
    padding:18px 24px 22px;
    gap:14px;
    border-bottom:1px solid var(--gray-300);
    box-shadow:0 12px 24px rgba(20,28,10,.08);
  }
  .site-header.nav-open .main-nav{
    flex-direction:column;
    align-items:stretch;
    gap:9px;
  }
  .site-header.nav-open .main-nav a{
    width:100%;
    justify-content:flex-start;
    padding:11px 14px;
  }
  .site-header.nav-open .header-cta{
    display:block;
    width:100%;
    text-align:center;
  }
  .site-header.nav-open .nav-products-trigger{width:100%;}
}

/* Product VAT/model display v49 */
.vat-note{display:block;margin:6px 0 14px;color:var(--gray-600);font-size:.82rem;font-weight:500;line-height:1.35}
.catalog-card-foot .vat-note{margin:4px 0 0;font-size:.76rem}
.home-slide-price + .vat-note{margin-top:-4px;margin-bottom:8px}
.variant-message:empty{display:none}


/* SEO topic cluster: phao dien khong day v50 */
.topic-link-box{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;margin:0 0 26px;padding:14px 18px;border:1px solid #dce6cf;border-radius:12px;background:#f7faef}.topic-link-box span{font-size:.76rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-600)}.topic-link-box a{font-weight:800;color:var(--blue-600);text-decoration:none}.topic-link-box a:hover{text-decoration:underline}.topic-pillar-callout{margin:0 0 24px;padding:13px 16px;border-left:4px solid var(--blue-600);background:#f6f8f2;border-radius:8px;color:var(--gray-900)}.topic-pillar-callout a{color:var(--blue-600);font-weight:700;text-decoration:none}.topic-pillar-callout a:hover{text-decoration:underline}
.knowledge-pillar-feature{display:flex;flex-direction:column;gap:6px;margin:-6px 0 24px;padding:20px 22px;border:1px solid #d8e2ca;border-radius:14px;background:linear-gradient(120deg,#f7faef,#eef5f7);text-decoration:none;color:inherit}.knowledge-pillar-feature strong{font-size:1.35rem;color:var(--navy-900)}.knowledge-pillar-feature small{font-size:.96rem;color:var(--gray-600)}.knowledge-pillar-feature:hover{border-color:var(--blue-600);box-shadow:0 8px 22px rgba(31,42,13,.08)}
.pillar-hero h1{max-width:900px}.pillar-page{padding-top:48px}.pillar-layout{display:grid;grid-template-columns:minmax(0,800px) minmax(220px,280px);gap:56px;align-items:start;justify-content:center}.pillar-main>section{margin-bottom:42px}.pillar-main h2{font-size:1.55rem;line-height:1.3;margin-bottom:12px}.pillar-main p{line-height:1.8;color:#2d3338}.pillar-benefits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.pillar-benefits>div{padding:20px;border:1px solid #e0e7eb;border-radius:14px;background:#fff}.pillar-benefits strong{display:block;margin-bottom:8px;color:var(--navy-900)}.pillar-benefits p{margin:0;font-size:.94rem;line-height:1.65}.table-wrap{overflow-x:auto}.pillar-table{width:100%;border-collapse:collapse;background:#fff}.pillar-table th,.pillar-table td{padding:14px 16px;border:1px solid #dfe5e8;text-align:left;vertical-align:top;line-height:1.55}.pillar-table th{background:#f2f5ef;color:var(--navy-900)}.pillar-product-card{display:grid;grid-template-columns:minmax(220px,320px) 1fr;gap:28px;align-items:center;padding:26px;border:1px solid #dce6cf;border-radius:16px;background:#f8faf4}.pillar-product-image img{width:100%;height:auto;border-radius:12px;background:#fff}.pillar-product-card h2{margin:7px 0 10px}.pillar-note{font-size:.9rem;color:var(--gray-600)!important}.pillar-link-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.pillar-link-grid a{display:flex;flex-direction:column;gap:5px;padding:18px;border:1px solid #dde5e9;border-radius:12px;text-decoration:none;color:inherit;background:#fff}.pillar-link-grid a:hover{border-color:var(--blue-600);box-shadow:0 8px 20px rgba(20,48,72,.07)}.pillar-link-grid span{color:var(--gray-600);font-size:.92rem;line-height:1.5}.knowledge-card-pillar{border-color:#d8e2ca;background:#fbfcf7}
@media(max-width:960px){.pillar-layout{grid-template-columns:1fr}.pillar-benefits{grid-template-columns:1fr}.pillar-product-card{grid-template-columns:1fr}.pillar-product-image{max-width:420px}.pillar-link-grid{grid-template-columns:1fr}}


/* Promotion registration: real submissions only v51 */
.btn-promo{background:#b85c00;border:1px solid #b85c00;color:#fff;box-shadow:0 4px 12px rgba(184,92,0,.16)}
.btn-promo:hover{background:#984c00;border-color:#984c00;color:#fff}
.promotion-modal{position:fixed;inset:0;z-index:3000;display:none;align-items:center;justify-content:center;padding:22px}
.promotion-modal.open{display:flex}
.promotion-backdrop{position:absolute;inset:0;background:rgba(16,25,33,.58);backdrop-filter:blur(3px)}
.promotion-dialog{position:relative;z-index:1;width:min(560px,100%);max-height:min(88vh,760px);overflow:auto;padding:30px;border-radius:18px;background:#fff;box-shadow:0 24px 70px rgba(0,0,0,.24)}
.promotion-close{position:absolute;top:12px;right:14px;width:38px;height:38px;border:0;border-radius:50%;background:#f1f4ed;color:#26332e;font-size:1.7rem;line-height:1;cursor:pointer}
.promotion-close:hover{background:#e4eadb}
.promotion-kicker{margin:0 0 8px;color:#b85c00;font-size:.76rem;font-weight:850;letter-spacing:.09em}
.promotion-dialog h2{margin:0 42px 8px 0;font-size:1.65rem}
.promotion-subtitle{margin:0 0 22px;color:var(--gray-600);line-height:1.6}
.promotion-form{padding:0;box-shadow:none;background:transparent}
.promotion-form label{display:block;margin-bottom:14px;font-weight:650}
.promotion-form input,.promotion-form textarea{width:100%;margin-top:7px;padding:12px 13px;border:1px solid #ccd5c4;border-radius:10px;font:inherit;background:#fff}
.promotion-form input:focus,.promotion-form textarea:focus{outline:2px solid rgba(85,123,32,.18);border-color:#7b9850}
.promotion-privacy{margin:-2px 0 16px;color:var(--gray-600);font-size:.8rem;line-height:1.5}
.promotion-submit{width:100%;justify-content:center}
body.promo-modal-open{overflow:hidden}
.promotion-proof{margin-top:16px;padding:13px 15px;border:1px solid #dbe5d0;border-radius:12px;background:#f8faf4;max-width:520px}
.promotion-live-head{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:.78rem;color:#557b20;text-transform:uppercase;letter-spacing:.05em}
.promotion-live-dot{width:8px;height:8px;border-radius:50%;background:#5d9828;box-shadow:0 0 0 4px rgba(93,152,40,.13);animation:promoPulse 1.8s infinite}
.promotion-proof p{margin:0;line-height:1.45;font-size:.88rem}
.promotion-proof-total{margin-top:4px!important;color:#557b20;font-weight:800}
.promotion-proof.proof-flash{animation:proofFlash .9s ease}
@keyframes promoPulse{0%,100%{box-shadow:0 0 0 3px rgba(93,152,40,.12)}50%{box-shadow:0 0 0 7px rgba(93,152,40,.04)}}
@keyframes proofFlash{0%{transform:scale(.99);background:#fff4df}100%{transform:scale(1);background:#f8faf4}}
@media(max-width:700px){.promotion-dialog{padding:24px 18px;border-radius:15px}.detail-actions .btn-promo{width:100%}}



/* Promotion box border animation v54 — strictly confined to the promotion card */
@property --promo-border-angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

.promotion-proof{
  --promo-border-angle:0deg;
  position:relative;
  isolation:isolate;
  overflow:hidden;
  max-width:520px;
  border:2px solid transparent!important;
  border-radius:14px;
  background:
    linear-gradient(180deg,#fafcf6 0%,#f5f8ef 100%) padding-box,
    conic-gradient(
      from var(--promo-border-angle),
      #b6ca96 0deg 225deg,
      #e0eccb 238deg,
      #fff9d1 255deg,
      #ffd94a 272deg,
      #fff8bd 289deg,
      #9fd64f 308deg,
      #d6e6bd 330deg,
      #b6ca96 360deg
    ) border-box!important;
  box-shadow:0 10px 28px rgba(67,93,35,.08);
  animation:promoBorderRotate 3.4s linear infinite,promoCardGlow 1.7s ease-in-out infinite alternate;
}

@keyframes promoBorderRotate{
  to{--promo-border-angle:360deg;}
}

@keyframes promoCardGlow{
  from{box-shadow:0 8px 22px rgba(67,93,35,.07),0 0 0 rgba(255,215,55,0);}
  to{box-shadow:0 10px 28px rgba(67,93,35,.09),0 0 12px rgba(255,215,55,.20);}
}

@media(prefers-reduced-motion:reduce){
  .promotion-proof{animation:none;}
}

/* Promotion proof: show 5 random entries selected from the 15 most recent real registrations */
.promotion-proof{overflow:hidden}
.promotion-proof-list{display:grid;gap:7px;margin-top:7px}
.promotion-proof-item{display:flex;align-items:flex-start;gap:8px;padding:7px 9px;border-radius:9px;background:#fff;border:1px solid #edf2e7;color:#344235;font-size:.86rem;line-height:1.4}
.promotion-proof-item-dot{flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:#6a9b38;margin-top:6px;box-shadow:0 0 0 4px rgba(106,155,56,.10)}
.promotion-proof-list.promo-list-refresh .promotion-proof-item{animation:promoListIn .42s ease both}
.promotion-proof-list.promo-list-refresh .promotion-proof-item:nth-child(2){animation-delay:.04s}
.promotion-proof-list.promo-list-refresh .promotion-proof-item:nth-child(3){animation-delay:.08s}
.promotion-proof-list.promo-list-refresh .promotion-proof-item:nth-child(4){animation-delay:.12s}
.promotion-proof-list.promo-list-refresh .promotion-proof-item:nth-child(5){animation-delay:.16s}
.promotion-proof-total{padding-top:8px;border-top:1px solid #e5ecd9;margin-top:9px!important;color:#557b20;font-weight:750}
.promotion-proof-total strong{font-size:1.02em;color:#3f6919}
@keyframes promoListIn{0%{opacity:0;transform:translateY(6px)}100%{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){.promotion-proof-list.promo-list-refresh .promotion-proof-item{animation:none}.promotion-live-dot{animation:none}}