/* ==========================================================================
   KAROFI THEME MAIN STYLESHEET (Mã nguồn CSS độc lập mới 100%)
   ========================================================================== */

/* Utility Layout & Reset */
.kr-container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.flex-between { display: flex; justify-content: space-between; }
.flex-center { display: flex; justify-content: center; }
.align-center { align-items: center; }
.flex-gap-sm { gap: 10px; }
.flex-gap-md { gap: 18px; }
.flex-gap-lg { gap: 30px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.grid-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }

.text-center { text-align: center; }
.text-cyan { color: var(--kr-primary) !important; }
.text-navy { color: var(--kr-navy) !important; }
.text-pink { color: var(--kr-accent) !important; }
.text-yellow { color: var(--kr-yellow) !important; }
.font-bold { font-weight: 700; }

/* Hệ Thống Nút Bấm */
.kr-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  font-family: var(--kr-font-heading);
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--kr-radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--kr-transition);
  text-decoration: none;
  white-space: nowrap;
}

.kr-btn-primary {
  background: var(--kr-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 91, 181, 0.35);
}
.kr-btn-primary:hover {
  background: var(--kr-primary-dark);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 91, 181, 0.45);
}

.kr-btn-pink {
  background: var(--kr-green);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(30, 163, 66, 0.35);
}
.kr-btn-pink:hover {
  background: var(--kr-green-dark);
  color: #ffffff;
  transform: translateY(-2px);
}

.kr-btn-yellow {
  background: var(--kr-yellow);
  color: #000000;
  box-shadow: 0 4px 14px rgba(255, 222, 24, 0.35);
}
.kr-btn-yellow:hover {
  background: #eed000;
  color: #000000;
  transform: translateY(-2px);
}

.kr-btn-outline {
  background: transparent;
  border-color: var(--kr-primary);
  color: var(--kr-primary);
}
.kr-btn-outline:hover {
  background: var(--kr-primary-light);
}

.kr-btn-outline.light {
  border-color: #ffffff;
  color: #ffffff;
}
.kr-btn-outline.light:hover {
  background: rgba(255, 255, 255, 0.15);
}

.kr-btn.large {
  padding: 14px 32px;
  font-size: 15px;
}

/* Header & Topbar Styles */
.kr-topbar {
  background: var(--kr-navy);
  color: #ffffff;
  font-size: 12px;
  padding: 8px 0;
}
.kr-topbar a { color: #ffffff; }
.hotline-badge { background: rgba(255, 255, 255, 0.12); padding: 4px 12px; border-radius: var(--kr-radius-pill); white-space: nowrap; }
.hotline-badge.tech { background: rgba(30, 163, 66, 0.3); color: #ffffff; }
.store-badge { color: rgba(255, 255, 255, 0.9); }
.topbar-link:hover { color: var(--kr-primary-light); }

/* Header 2 Hàng Độc Lập */
.kr-header {
  background: #ffffff;
  border-bottom: 1px solid var(--kr-border-gray);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.kr-header-top {
  padding: 10px 0;
  border-bottom: 1px solid #f0f4f8;
}

.kr-logo-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}
.site-logo-img {
  height: 76px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 3px 6px rgba(0,0,0,0.08));
  transition: var(--kr-transition);
}
.karofi-auth-badge {
  display: flex;
  flex-direction: column;
  border-left: 2px solid var(--kr-green);
  padding-left: 12px;
}
.karofi-auth-badge .auth-title {
  font-size: 20px;
  font-weight: 900;
  color: var(--kr-primary);
  line-height: 1;
  letter-spacing: -0.5px;
}
.karofi-auth-badge .auth-sub {
  font-size: 9px;
  font-weight: 800;
  color: var(--kr-green);
  letter-spacing: 0.5px;
  margin-top: 3px;
  text-transform: uppercase;
}

.site-footer-logo-img {
  height: 90px;
  width: auto;
  object-fit: contain;
  background: #ffffff;
  padding: 10px 20px;
  border-radius: 14px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
}

.kr-header-search {
  flex: 1;
  max-width: 480px;
  margin: 0 30px;
}
.kr-search-form {
  display: flex;
  background: var(--kr-bg-gray);
  border-radius: var(--kr-radius-pill);
  padding: 4px 6px 4px 18px;
  width: 100%;
  border: 1px solid transparent;
  transition: var(--kr-transition);
}
.kr-search-form:focus-within {
  border-color: var(--kr-primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(0, 173, 238, 0.15);
}
.kr-search-form input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: 13px;
}
.kr-search-form button {
  background: var(--kr-primary);
  color: #ffffff;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--kr-transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.kr-search-form button:hover { background: var(--kr-primary-dark); }

.kr-btn-call {
  background: linear-gradient(135deg, var(--kr-primary) 0%, var(--kr-primary-dark) 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 13px;
  padding: 10px 22px;
  border-radius: var(--kr-radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0, 173, 238, 0.3);
  text-decoration: none;
  transition: var(--kr-transition);
}
.kr-btn-call:hover {
  background: var(--kr-primary-dark);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 173, 238, 0.4);
}

.kr-header-navbar {
  padding: 10px 0;
  background: #ffffff;
}

.kr-main-nav .kr-menu-list {
  display: flex;
  list-style: none;
  gap: 28px;
  margin: 0;
  padding: 0;
}
.kr-main-nav a {
  font-weight: 700;
  font-size: 13px;
  color: var(--kr-text-dark);
  text-transform: uppercase;
  padding: 6px 0;
  position: relative;
  white-space: nowrap;
}
.kr-main-nav li.active > a, .kr-main-nav a:hover {
  color: var(--kr-primary);
}
.kr-main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--kr-primary);
  border-radius: 2px;
  transition: var(--kr-transition);
}
.kr-main-nav li.active > a::after, .kr-main-nav a:hover::after {
  width: 100%;
}

.kr-menu-list li.has-dropdown { position: relative; }
.kr-menu-list .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #ffffff;
  min-width: 240px;
  border-radius: var(--kr-radius-md);
  box-shadow: var(--kr-shadow-hover);
  border: 1px solid var(--kr-border);
  padding: 10px 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--kr-transition);
}
.kr-menu-list li.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.kr-menu-list .dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-size: 13px;
  text-transform: none;
  font-weight: 600;
}
.kr-menu-list .dropdown-menu a:hover { background: var(--kr-primary-light); }

.kr-cart-icon {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--kr-bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--kr-navy);
}
.kr-cart-icon .cart-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--kr-accent);
  color: #ffffff;
  font-size: 10px;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kr-btn-call {
  background: var(--kr-primary);
  color: #ffffff;
  font-weight: 800;
  font-size: 13px;
  padding: 8px 18px;
  border-radius: var(--kr-radius-pill);
  display: flex;
  align-items: center;
  gap: 6px;
}
.kr-btn-call:hover { background: var(--kr-primary-dark); color: #ffffff; }

.kr-mobile-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; }

/* FIX CRITICAL BUG: Hidden Mobile Drawer by default */
.kr-mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 300px;
  height: 100vh;
  background: #ffffff;
  z-index: 99999;
  box-shadow: 4px 0 25px rgba(0, 0, 0, 0.2);
  padding: 20px;
  overflow-y: auto;
}
.kr-mobile-drawer.open {
  display: block !important;
}
.drawer-header {
  border-bottom: 1px solid var(--kr-border);
  padding-bottom: 12px;
  margin-bottom: 16px;
}
.drawer-title { font-weight: 800; color: var(--kr-navy); font-size: 14px; }
.drawer-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--kr-text-muted); }

/* Banner Slide Trang Chủ */
.kr-hero-slider {
  background: linear-gradient(180deg, #e8f7fd 0%, #ffffff 100%);
  padding: 60px 0;
  overflow: hidden;
}
.hero-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 173, 238, 0.12);
  color: var(--kr-primary);
  font-weight: 800;
  font-size: 12px;
  padding: 5px 14px;
  border-radius: var(--kr-radius-pill);
  margin-bottom: 16px;
}
.hero-main-title { font-size: 38px; margin-bottom: 16px; letter-spacing: -0.5px; }
.hero-desc { font-size: 16px; color: var(--kr-text-muted); margin-bottom: 28px; max-width: 580px; }

.hero-product-preview {
  position: relative;
  text-align: center;
}
.hero-img {
  max-height: 400px;
  margin: 0 auto;
  filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.15));
  transition: var(--kr-transition);
}
.hero-product-preview:hover .hero-img { transform: scale(1.05); }

.floating-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: #ffffff;
  border-radius: var(--kr-radius-md);
  padding: 12px 18px;
  box-shadow: var(--kr-shadow-hover);
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--kr-border-gray);
}
.floating-badge i { font-size: 24px; }
.floating-badge strong { display: block; font-size: 13px; color: var(--kr-navy); }
.floating-badge span { font-size: 11px; color: var(--kr-text-muted); }

/* Thanh Danh Mục Nhanh Hình Tròn */
.kr-quick-categories { padding: 45px 0; background: #ffffff; }
.quick-cat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 16px 10px;
  border-radius: 16px;
  background: #f8fafc;
  border: 1px solid #eef2f6;
  transition: var(--kr-transition);
  text-decoration: none;
}
.cat-icon-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #e8f7fd;
  border: 2px solid #bce7f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--kr-primary);
  transition: var(--kr-transition);
}
.quick-cat-item span { font-weight: 700; font-size: 13px; color: var(--kr-text-dark); text-align: center; }
.quick-cat-item:hover {
  background: #ffffff;
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 173, 238, 0.15);
  border-color: var(--kr-primary-light);
}
.quick-cat-item:hover .cat-icon-circle {
  background: var(--kr-primary);
  color: #ffffff;
  border-color: var(--kr-primary);
}

/* Các Khối Phần Nội Dung */
.kr-section { padding: 70px 0; }
.kr-block-header { margin-bottom: 40px; }
.block-subtitle { font-size: 12px; font-weight: 800; color: var(--kr-primary); letter-spacing: 1px; display: block; margin-bottom: 6px; }
.block-title { font-size: 28px; text-transform: uppercase; color: var(--kr-navy); font-weight: 800; }
.title-underline { width: 60px; height: 4px; background: var(--kr-primary); margin: 12px auto 20px; border-radius: 2px; }
.title-underline.pink { background: var(--kr-accent); }

/* Thẻ Sản Phẩm Chuẩn Karofi */
.featured-products { background: var(--kr-bg-main); }
.kr-tabs { list-style: none; margin-top: 20px; flex-wrap: wrap; }
.tab-item {
  padding: 8px 20px;
  border-radius: var(--kr-radius-pill);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  background: var(--kr-bg-gray);
  color: var(--kr-text-muted);
  transition: var(--kr-transition);
}
.tab-item.active, .tab-item:hover {
  background: var(--kr-primary);
  color: #ffffff;
}

.kr-product-card {
  background: var(--kr-bg-gray);
  border-radius: var(--kr-radius-card);
  padding: 24px 20px 20px;
  position: relative;
  overflow: hidden;
  transition: var(--kr-transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.kr-product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--kr-shadow-hover);
  background: #ffffff;
  border: 1px solid var(--kr-primary-light);
}

/* Nhãn Thẻ Sản Phẩm */
.kr-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
}
.kr-badge span {
  font-size: 10px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: var(--kr-radius-pill);
  text-transform: uppercase;
}
.salest-hot span { background: var(--kr-primary); color: #ffffff; }
.salest-new span { background: var(--kr-yellow); color: #000000; }
.salest-sale span { background: var(--kr-accent); color: #ffffff; }

.product-img-wrapper {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.product-img-wrapper img {
  max-height: 180px;
  max-width: 100%;
  object-fit: contain;
  transition: var(--kr-transition);
}
.kr-product-card:hover .product-img-wrapper img { transform: scale(1.08); }

.product-model { font-size: 11px; font-weight: 700; color: var(--kr-primary); display: block; margin-bottom: 4px; text-transform: uppercase; }
.product-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--kr-text-dark);
  margin-bottom: 16px;
  height: 40px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.product-price-row {
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  padding-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: nowrap;
}
.current-price {
  font-size: 15px;
  font-weight: 800;
  color: var(--kr-primary);
  display: inline-block;
  white-space: nowrap;
  font-family: var(--kr-font-heading);
}
.old-price { font-size: 12px; color: var(--kr-text-light); text-decoration: line-through; }
.kr-btn-buy {
  background: var(--kr-primary);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: var(--kr-radius-pill);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: var(--kr-transition);
}
.kr-btn-buy:hover {
  background: var(--kr-primary-dark);
}

/* Khối Cốt Lõi Vượt Trội */
.outstanding-section { background: var(--kr-bg-soft); }
.hero-out-card {
  background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
  border-radius: var(--kr-radius-card);
  padding: 40px;
  border: 1px solid var(--kr-border-gray);
  box-shadow: var(--kr-shadow-card);
  position: relative;
}
.out-badge {
  display: inline-block;
  background: var(--kr-accent);
  color: #ffffff;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--kr-radius-pill);
  margin-bottom: 16px;
}
.out-text h3 { font-size: 26px; color: var(--kr-navy); margin-bottom: 12px; }
.out-text p { font-size: 15px; color: var(--kr-text-muted); max-width: 540px; margin-bottom: 20px; }
.out-feat-list { list-style: none; display: flex; flex-direction: column; gap: 10px; font-weight: 600; }
.out-img img { max-height: 320px; }

/* Sơ Đồ Công Nghệ SMAX */
.technology-section { background: #ffffff; }
.tech-diagram-wrapper { margin-top: 40px; gap: 30px; }
.tech-col { flex: 1; display: flex; flex-direction: column; }
.tech-feature-item {
  display: flex;
  gap: 16px;
  background: var(--kr-bg-gray);
  padding: 20px;
  border-radius: var(--kr-radius-md);
  transition: var(--kr-transition);
}
.tech-feature-item:hover {
  background: #ffffff;
  box-shadow: var(--kr-shadow-hover);
  transform: translateY(-3px);
}
.tech-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--kr-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.tech-feature-item h4 { font-size: 15px; color: var(--kr-navy); margin-bottom: 6px; }
.tech-feature-item p { font-size: 13px; color: var(--kr-text-muted); }

.tech-center-core { flex: 1.2; position: relative; }
.core-glow-circle {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 173, 238, 0.15) 0%, rgba(11, 89, 122, 0.15) 100%);
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--kr-primary);
}
.core-img { max-height: 240px; filter: drop-shadow(0 10px 20px rgba(0, 173, 238, 0.25)); }
.core-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--kr-navy);
  color: #ffffff;
  font-weight: 800;
  font-size: 12px;
  padding: 8px 20px;
  border-radius: var(--kr-radius-pill);
}

/* Khối Tin Tức */
.news-section { background: var(--kr-bg-gray); }
.news-layout-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 30px; }
.featured-news-card {
  background: #ffffff;
  border-radius: var(--kr-radius-card);
  overflow: hidden;
  box-shadow: var(--kr-shadow-sm);
}
.news-img-box img { width: 100%; height: 260px; object-fit: cover; }
.news-body { padding: 24px; }
.news-date { font-size: 12px; color: var(--kr-text-light); margin-bottom: 8px; display: block; }
.news-title { font-size: 18px; margin-bottom: 12px; }
.news-excerpt { font-size: 14px; color: var(--kr-text-muted); margin-bottom: 20px; }
.read-news-btn { color: var(--kr-primary); font-weight: 700; font-size: 13px; }

.news-side-list ul { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.news-side-list li {
  background: #ffffff;
  padding: 20px;
  border-radius: var(--kr-radius-md);
  border-left: 4px solid var(--kr-primary);
}
.news-side-date { font-size: 11px; color: var(--kr-text-light); }
.news-side-list h4 { font-size: 15px; margin: 6px 0 10px; color: var(--kr-text-dark); }
.side-link { color: var(--kr-primary); font-weight: 700; font-size: 12px; }

/* Khối Banner CTA Liên Hệ */
.kr-cta-banner {
  background: linear-gradient(135deg, var(--kr-navy) 0%, #063c53 100%);
  color: #ffffff;
  padding: 60px 0;
}
.cta-info h2 { color: #ffffff; font-size: 26px; margin-bottom: 8px; }
.cta-info p { color: rgba(255, 255, 255, 0.8); }

/* Thanh Cam Kết & Chân Trang */
.kr-assurance-section { background: #ffffff; padding: 45px 0; border-top: 1px solid var(--kr-border); }
.assurance-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--kr-primary-light);
  color: var(--kr-primary);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.assurance-item h4 { font-size: 15px; margin-bottom: 6px; color: var(--kr-navy); }
.assurance-item p { font-size: 12px; color: var(--kr-text-muted); }

.kr-footer { background: var(--kr-navy-dark); color: rgba(255, 255, 255, 0.8); padding: 60px 0 0; }
.kr-footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 30px; margin-bottom: 50px; }
.company-name { color: #ffffff; font-weight: 800; font-size: 14px; margin: 12px 0 8px; }
.footer-title { color: #ffffff; font-size: 16px; margin-bottom: 20px; border-left: 3px solid var(--kr-primary); padding-left: 10px; }
.footer-menu-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-menu-list a { color: rgba(255, 255, 255, 0.75); font-size: 13px; }
.footer-menu-list a:hover { color: var(--kr-primary); }

.app-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  padding: 8px 14px;
  border-radius: var(--kr-radius-pill);
  font-size: 12px;
  font-weight: 700;
}
.social-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.social-circle:hover { background: var(--kr-primary); color: #ffffff; }

.kr-footer-copyright {
  background: var(--kr-primary);
  color: #ffffff;
  padding: 14px 0;
  font-size: 12px;
}
.kr-back-to-top {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #ffffff;
  color: var(--kr-primary);
  border: none;
  cursor: pointer;
}

/* ==========================================================================
   PRODUCT DETAIL PAGE STYLES (Trang Chi Tiết Sản Phẩm Karofi)
   ========================================================================== */
.kr-breadcrumb-bar {
  background: #f4f8fc;
  padding: 14px 0;
  border-bottom: 1px solid #e2e8f0;
}
.kr-breadcrumb {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: wrap !important;
  align-items: center !important;
  gap: 10px !important;
  list-style: none !important;
  font-size: 13px;
  margin: 0;
  padding: 0;
}
.kr-breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.kr-breadcrumb a {
  color: var(--kr-navy);
  font-weight: 600;
  text-decoration: none;
  transition: var(--kr-transition);
}
.kr-breadcrumb a:hover {
  color: var(--kr-primary);
  text-decoration: underline;
}
.kr-breadcrumb li.active {
  color: var(--kr-primary);
  font-weight: 700;
}
.kr-breadcrumb i {
  font-size: 11px;
  color: #94a3b8;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: start;
}
.main-image-box {
  background: #ffffff;
  border-radius: var(--kr-radius-card);
  border: 1px solid var(--kr-border-gray);
  padding: 30px;
  text-align: center;
  position: relative;
  box-shadow: var(--kr-shadow-card);
}
.main-image-box img {
  max-height: 380px;
  margin: 0 auto;
  object-fit: contain;
}
.gallery-thumbs { margin-top: 16px; }
.thumb-item {
  width: 70px;
  height: 70px;
  border-radius: 12px;
  border: 2px solid var(--kr-border-gray);
  padding: 5px;
  cursor: pointer;
  background: #ffffff;
  transition: var(--kr-transition);
}
.thumb-item.active, .thumb-item:hover {
  border-color: var(--kr-primary);
  box-shadow: var(--kr-shadow-hover);
}
.thumb-item img { width: 100%; height: 100%; object-fit: contain; }

.detail-trust-box {
  margin-top: 24px;
  background: #f8fafc;
  padding: 16px;
  border-radius: var(--kr-radius-md);
  border: 1px solid #e2e8f0;
}
.trust-item i { font-size: 26px; }
.trust-item strong { display: block; font-size: 13px; color: var(--kr-navy); }
.trust-item span { font-size: 11px; color: var(--kr-text-muted); }

.product-brand-tag {
  display: inline-block;
  background: rgba(0, 173, 238, 0.12);
  color: var(--kr-primary);
  font-weight: 800;
  font-size: 11px;
  padding: 4px 12px;
  border-radius: var(--kr-radius-pill);
  margin-bottom: 10px;
}
.detail-product-title { font-size: 26px; color: var(--kr-navy); font-weight: 800; line-height: 1.2; }
.detail-product-subtitle { font-size: 15px; color: var(--kr-primary); font-weight: 700; margin: 4px 0 14px; }

.product-rating-row {
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--kr-border);
}
.stars-gold { color: #f59e0b; font-size: 14px; }
.rating-text { font-size: 13px; color: var(--kr-text-muted); font-weight: 600; }
.stock-status { font-size: 12px; font-weight: 700; color: #10b981; }

.detail-price-box {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border-radius: var(--kr-radius-md);
  padding: 20px;
  border: 1px solid #bae6fd;
  margin-bottom: 24px;
}
.price-label { font-size: 13px; font-weight: 800; color: var(--kr-navy); }
.detail-price-value { font-size: 24px; font-weight: 900; }
.detail-old-price { font-size: 13px; color: var(--kr-text-light); margin-top: 4px; }
.detail-old-price span { text-decoration: line-through; }
.price-note { font-size: 12px; color: var(--kr-navy); margin-top: 8px; font-weight: 600; }

.detail-features-list { margin-bottom: 24px; }
.detail-features-list h4 { font-size: 14px; color: var(--kr-navy); margin-bottom: 10px; }
.detail-features-list ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.detail-features-list li { font-size: 13px; font-weight: 600; color: var(--kr-text-dark); }

.detail-actions-group { margin-bottom: 20px; flex-direction: column; }
.full-width { width: 100%; }

.support-hotline-strip {
  background: #f8fafc;
  padding: 12px 18px;
  border-radius: var(--kr-radius-pill);
  border: 1px solid #e2e8f0;
  font-size: 13px;
  font-weight: 700;
}
.strip-phone { font-size: 16px; font-weight: 800; color: var(--kr-primary); }

/* Detail Tabs */
.detail-tabs-section { background: #f8fafc; border-top: 1px solid var(--kr-border); }
.detail-tabs-header { list-style: none; padding: 0; margin-bottom: 30px; border-bottom: 2px solid #e2e8f0; }
.dtab-item {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 800;
  color: var(--kr-text-muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: var(--kr-transition);
}
.dtab-item.active, .dtab-item:hover {
  color: var(--kr-primary);
  border-bottom-color: var(--kr-primary);
}

.dtab-content { display: none; background: #ffffff; padding: 30px; border-radius: var(--kr-radius-card); border: 1px solid var(--kr-border-gray); box-shadow: var(--kr-shadow-sm); }
.dtab-content.active { display: block; }
.dtab-content h3 { font-size: 20px; color: var(--kr-navy); margin-bottom: 16px; }

.specs-table { width: 100%; border-collapse: collapse; }
.specs-table th, .specs-table td { padding: 12px 16px; border-bottom: 1px solid #e2e8f0; text-align: left; font-size: 14px; }
.specs-table th { width: 30%; background: #f8fafc; color: var(--kr-navy); font-weight: 700; }
.specs-table td { color: var(--kr-text-dark); }

.branch-card-box {
  background: #f8fafc;
  padding: 20px;
  border-radius: var(--kr-radius-md);
  border-left: 4px solid var(--kr-primary);
}
.branch-card-box h4 { font-size: 15px; color: var(--kr-navy); margin-bottom: 10px; }
.branch-card-box p { font-size: 13px; margin-bottom: 6px; }
.branch-tag { display: inline-block; font-size: 11px; font-weight: 800; background: rgba(0, 173, 238, 0.15); color: var(--kr-primary); padding: 3px 10px; border-radius: 12px; margin-top: 8px; }

/* ==========================================================================
   MOBILE & TABLET RESPONSIVE STYLES (Tối Ưu Di Động 100%)
   ========================================================================== */

@media (max-width: 992px) {
  .product-detail-grid { grid-template-columns: 1fr; gap: 24px; }
  .kr-header-search { display: none; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .tech-diagram-wrapper { flex-direction: column; }
  .news-layout-grid { grid-template-columns: 1fr; }
  .kr-footer-grid { grid-template-columns: 1fr 1fr; }
  .out-content { flex-direction: column; text-align: center; gap: 20px; }
  .kr-main-nav { display: none; }
  .kr-mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: #f8fafc;
    border: 1px solid var(--kr-border-gray);
    border-radius: var(--kr-radius-sm);
    color: var(--kr-navy);
    font-size: 20px;
    cursor: pointer;
  }
}

@media (max-width: 768px) {
  .kr-topbar-info .store-badge,
  .kr-topbar-actions {
    display: none !important;
  }
  .kr-topbar .kr-container {
    justify-content: center !important;
    text-align: center;
  }
  .kr-header-top {
    padding: 10px 0;
  }
  .site-logo-img {
    height: 48px !important;
  }
  .karofi-auth-badge {
    padding-left: 8px;
    border-left-width: 1.5px;
  }
  .karofi-auth-badge .auth-title {
    font-size: 15px;
  }
  .karofi-auth-badge .auth-sub {
    font-size: 8px;
  }
  .kr-btn-call span {
    display: none !important;
  }
  .kr-btn-call {
    padding: 0 !important;
    width: 42px !important;
    height: 42px !important;
    border-radius: 50% !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 16px !important;
  }
  .kr-header-actions {
    gap: 10px;
  }
  .kr-logo-brand {
    gap: 8px;
  }

  /* Grid Layouts on Mobile */
  .grid-2, .grid-3, .grid-4, .grid-6, .kr-product-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  /* Card Footer on Mobile */
  .product-card-footer, .kr-product-card .card-footer {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 8px !important;
  }
  .product-card-footer .kr-btn, .kr-product-card .kr-btn {
    width: 100% !important;
    justify-content: center !important;
    padding: 8px 12px !important;
    font-size: 12px !important;
  }

  /* Hero Section on Mobile */
  .hero-main-title {
    font-size: 22px !important;
    line-height: 1.3 !important;
  }
  .kr-hero-box {
    padding: 24px 16px !important;
    flex-direction: column !important;
    text-align: center !alignment;
  }

  /* Horizontal Scroll Tabs on Mobile */
  .kr-tabs {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    justify-content: flex-start !important;
    padding-bottom: 8px !important;
    -webkit-overflow-scrolling: touch;
  }
  .kr-tabs .tab-item {
    flex-shrink: 0 !important;
  }
}

@media (max-width: 480px) {
  .grid-2, .grid-3, .grid-4, .grid-6, .kr-product-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }
  .karofi-auth-badge {
    display: none !important;
  }
  .kr-container {
    padding-left: 12px !important;
    padding-right: 12px !important;
  }
  .kr-footer-grid {
    grid-template-columns: 1fr !important;
  }
  .kr-cta-banner .cta-inner-box {
    flex-direction: column !important;
    text-align: center !important;
    gap: 16px !important;
  }

  /* Floating Zalo Widget on Small Screens */
  .kr-floating-contact {
    bottom: 16px !important;
    right: 16px !important;
  }
  .kr-floating-contact .zalo-label {
    display: none !important;
  }
  .float-icon-wrap {
    width: 46px !important;
    height: 46px !important;
    font-size: 16px !important;
  }
}

/* Mobile Drawer Component */
.kr-mobile-drawer {
  position: fixed;
  top: 0;
  left: -100%;
  width: 85%;
  max-width: 320px;
  height: 100vh;
  background: #ffffff;
  z-index: 10000;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, left 0.3s ease;
  overflow-y: auto;
}
.kr-mobile-drawer.open {
  left: 0;
}
.drawer-header {
  padding: 16px 20px;
  background: var(--kr-navy);
  color: #ffffff;
}
.drawer-title {
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.5px;
}
.drawer-close {
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 28px;
  cursor: pointer;
  line-height: 1;
}
.drawer-body {
  padding: 12px 0;
}
.drawer-body .kr-menu-list {
  display: flex;
  flex-direction: column;
  list-style: none;
  padding: 0;
  margin: 0;
}
.drawer-body .kr-menu-list li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  color: var(--kr-text-dark);
  font-weight: 700;
  font-size: 14px;
  border-bottom: 1px solid #f1f5f9;
  text-decoration: none;
}
.drawer-body .kr-menu-list li.active a {
  color: var(--kr-primary);
  background: var(--kr-primary-light);
}
.drawer-body .dropdown-menu {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  box-shadow: none;
  border: none;
  background: #f8fafc;
  padding-left: 20px;
}

/* Floating Zalo & Hotline Widget */
.kr-floating-contact {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}
.float-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.float-btn .zalo-label {
  background: #ffffff;
  color: #0068ff;
  font-weight: 800;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 20px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
  border: 1px solid #e0ebff;
  transition: var(--kr-transition);
}
.float-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 20px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  transition: var(--kr-transition);
  animation: pulseFloat 2s infinite;
}
.zalo-bg {
  background: #0068ff;
}
.zalo-text {
  font-weight: 900;
  font-size: 13px;
  letter-spacing: -0.5px;
}
.phone-bg {
  background: var(--kr-primary);
}
.float-btn:hover .float-icon-wrap {
  transform: scale(1.1);
}
@keyframes pulseFloat {
  0% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0.6); }
  70% { box-shadow: 0 0 0 14px rgba(0, 104, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0); }
}