/* ========================================
   HaoZaiGear Website - Global Styles
   ======================================== */

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --navy: #0f1923;
  --navy-light: #1a2332;
  --steel: #2c3e50;
  --steel-light: #34495e;
  --gold: #d4952a;
  --gold-light: #e8a93e;
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-600: #6c757d;
  --gray-800: #343a40;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  color: var(--gray-800);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 25, 35, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

.nav-menu a {
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-menu a:hover {
  color: var(--white);
}

.nav-cta {
  background: var(--gold);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 600;
}

.nav-cta:hover {
  background: var(--gold-light);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 50%, var(--steel) 100%);
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(212,149,42,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-tag {
  display: inline-block;
  background: rgba(212,149,42,0.15);
  color: var(--gold);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  border: 1px solid rgba(212,149,42,0.25);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.7);
  max-width: 640px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gold);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212,149,42,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.05);
}

.btn-large {
  padding: 16px 32px;
  font-size: 1rem;
  width: 100%;
  justify-content: center;
  margin-top: 24px;
}

.hero-stats {
  display: flex;
  gap: 48px;
}

.stat {
  text-align: left;
}

.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
}

/* ========================================
   Section Common
   ======================================== */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  color: var(--gold);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--gray-600);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ========================================
   Products Grid
   ======================================== */
.products-section {
  background: var(--gray-50);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold);
}

.product-img {
  position: relative;
  height: 240px;
  overflow: hidden;
  background: var(--gray-100);
}

.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-img img {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--navy);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.product-info {
  padding: 24px;
}

.product-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.product-desc {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.product-standard {
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.product-cta {
  color: var(--navy);
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.product-cta:hover {
  color: var(--gold);
}

/* ========================================
   Certifications
   ======================================== */
.cert-section {
  background: var(--navy);
  color: var(--white);
}

.cert-section .section-title {
  color: var(--white);
}

.cert-section .section-desc {
  color: rgba(255,255,255,0.6);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.cert-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}

.cert-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(212,149,42,0.3);
  transform: translateY(-2px);
}

.cert-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.cert-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.cert-card p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ========================================
   About Section
   ======================================== */
.about-section {
  background: var(--white);
}

.about-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text {
  color: var(--gray-600);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-features {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.feature-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.feature p {
  font-size: 0.85rem;
  color: var(--gray-600);
  line-height: 1.5;
}

.about-card {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 40px;
  color: var(--white);
}

.about-stat-row {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
}

.about-stat {
  flex: 1;
  text-align: center;
  padding: 16px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
}

.about-stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 4px;
}

.about-stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
}

.about-note {
  text-align: center;
  padding: 16px;
  background: rgba(212,149,42,0.1);
  border: 1px solid rgba(212,149,42,0.2);
  border-radius: var(--radius);
  color: var(--gold);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ========================================
   OEM Section
   ======================================== */
.oem-section {
  background: var(--gray-50);
}

.oem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.oem-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--white);
  padding: 20px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.oem-item:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-sm);
}

.oem-check {
  color: var(--gold);
  font-weight: 800;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.oem-item p {
  font-size: 0.95rem;
  color: var(--gray-800);
  font-weight: 500;
}

/* ========================================
   Contact Section
   ======================================== */
.contact-section {
  background: var(--white);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 60px;
  align-items: start;
  max-width: 600px;
  margin: 0 auto;
}

.contact-desc {
  color: var(--gray-600);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact-icon {
  font-size: 1.3rem;
  width: 32px;
  text-align: center;
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  font-size: 0.95rem;
  color: var(--navy);
}

.contact-item span,
.contact-item a {
  font-size: 0.9rem;
  color: var(--gray-600);
}

.contact-item a:hover {
  color: var(--gold);
}

.contact-cta-box {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.contact-cta-box h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
}

.contact-cta-box ul {
  list-style: none;
  margin-bottom: 8px;
}

.contact-cta-box li {
  padding: 8px 0;
  color: var(--gray-600);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.contact-cta-box li::before {
  content: '→';
  color: var(--gold);
  font-weight: 700;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.6);
  padding: 48px 0 32px;
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  text-align: center;
}

.footer-tagline {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
}

.footer-links a:hover {
  color: var(--gold);
}

.footer-bottom {
  text-align: center;
  font-size: 0.8rem;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
  width: 100%;
}

.footer-bottom p {
  margin-bottom: 4px;
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.product-card, .cert-card, .oem-item, .feature {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.product-card.visible, .cert-card.visible, .oem-item.visible, .feature.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .about-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-features {
    grid-template-columns: 1fr;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .cert-grid {
    grid-template-columns: 1fr 1fr;
  }

  .oem-grid {
    grid-template-columns: 1fr;
  }
}

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

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }
}

/* ========================================
   Category Page Styles
   ======================================== */

/* Category Hero */
.cat-hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 60%, var(--steel) 100%);
  padding: 140px 0 80px;
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: 420px;
}

.cat-hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(212,149,42,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.cat-hero .container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.cat-back {
  display: inline-block;
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
  transition: var(--transition);
}

.cat-back:hover {
  color: var(--gold);
}

.cat-badge {
  display: inline-block;
  background: rgba(212,149,42,0.2);
  color: var(--gold);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  border: 1px solid rgba(212,149,42,0.3);
}

.cat-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cat-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  max-width: 620px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.cat-standards {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cat-std {
  display: inline-block;
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.8);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.1);
  letter-spacing: 0.3px;
}

.cat-hero-img {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 40%;
  overflow: hidden;
}

.cat-hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

/* Models Section */
.models-section {
  padding: 80px 0;
  background: var(--gray-50);
}

.models-section .container {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

/* Model Card */
.model-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.model-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(212,149,42,0.3);
}

.model-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.model-title-area {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.model-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.3px;
}

.model-type {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  font-weight: 500;
}

.model-standard-tag {
  background: var(--gold);
  color: var(--white);
  padding: 4px 14px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.model-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.model-gallery {
  padding: 28px;
  border-right: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.model-img-placeholder {
  border-radius: var(--radius);
  overflow: hidden;
  height: 220px;
  background: var(--gray-100);
}

.model-img-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.model-features h3,
.model-specs-wrap h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feature-list li {
  font-size: 0.9rem;
  color: var(--gray-800);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}

.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
}

.model-specs-wrap {
  padding: 28px;
}

.model-specs {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.model-specs tr {
  border-bottom: 1px solid var(--gray-200);
}

.model-specs tr:last-child {
  border-bottom: none;
}

.spec-key {
  padding: 8px 0;
  color: var(--gray-600);
  font-weight: 500;
  width: 45%;
  vertical-align: top;
}

.spec-val {
  padding: 8px 0;
  color: var(--gray-800);
  font-weight: 600;
  vertical-align: top;
}

/* Category Contact CTA */
.cat-contact-cta {
  background: var(--navy);
  padding: 80px 0;
  text-align: center;
}

.cat-contact-cta h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.cat-contact-cta p {
  color: rgba(255,255,255,0.6);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.cat-contact-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.cat-contact-btns .btn-outline-dark {
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
  background: transparent;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  transition: var(--transition);
}

.cat-contact-btns .btn-outline-dark:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.05);
}

.cat-contact-person {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
}

.cat-contact-person strong {
  color: rgba(255,255,255,0.9);
  font-weight: 600;
}

/* ========================================
   Category Page Responsive
   ======================================== */
@media (max-width: 900px) {
  .cat-hero-img {
    display: none;
  }

  .cat-hero {
    padding: 120px 0 60px;
  }

  .model-body {
    grid-template-columns: 1fr;
  }

  .model-gallery {
    border-right: none;
    border-bottom: 1px solid var(--gray-200);
  }

  .model-img-placeholder {
    height: 200px;
  }
}

@media (max-width: 600px) {
  .model-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 16px 20px;
  }

  .model-title-area {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .model-gallery,
  .model-specs-wrap {
    padding: 20px;
  }

  .cat-contact-btns {
    flex-direction: column;
    align-items: center;
  }

  .cat-contact-btns .btn,
  .cat-contact-btns .btn-outline-dark {
    width: 100%;
    justify-content: center;
  }
}


/* ========================================
   M7-Style Product Cards (New)
   ======================================== */

/* Product Grid - M7 Style */
.product-grid-m7 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 0;
  margin: 0;
  list-style: none;
}

@media (max-width: 900px) {
  .product-grid-m7 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .product-grid-m7 {
    grid-template-columns: 1fr;
  }
}

/* M7 Product Card */
.m7-card {
  background: #ffffff;
  border: 1px solid #e9ecef;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
}

.m7-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
  border-color: #d4952a;
}

.m7-card-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #f8f9fa;
  overflow: hidden;
  position: relative;
}

.m7-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.m7-card:hover .m7-card-img img {
  transform: scale(1.05);
}

.m7-card-body {
  padding: 20px;
}

.m7-card-model {
  font-size: 1.4rem;
  font-weight: 800;
  color: #0f1923;
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}

.m7-card-name {
  font-size: 0.9rem;
  color: #6c757d;
  margin-bottom: 16px;
  font-weight: 500;
}

.m7-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #0f1923;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.m7-card-link:hover {
  color: #d4952a;
  gap: 10px;
}

.m7-card-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.m7-card:hover .m7-card-link svg {
  transform: translateX(4px);
}

/* Category Models Grid - Compact M7 Style */
.models-grid-m7 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

@media (max-width: 768px) {
  .models-grid-m7 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .models-grid-m7 {
    grid-template-columns: 1fr;
  }
}

/* Compact Model Card */
.model-card-compact {
  background: #ffffff;
  border: 1px solid #e9ecef;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.model-card-compact:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
  border-color: #d4952a;
}

.model-card-compact-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #f8f9fa;
  overflow: hidden;
}

.model-card-compact-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.model-card-compact:hover .model-card-compact-img img {
  transform: scale(1.05);
}

.model-card-compact-body {
  padding: 16px;
}

.model-card-compact-id {
  font-size: 1.3rem;
  font-weight: 800;
  color: #0f1923;
  margin-bottom: 4px;
}

.model-card-compact-name {
  font-size: 0.85rem;
  color: #6c757d;
  margin-bottom: 12px;
}

.model-card-compact-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #0f1923;
  font-size: 0.8rem;
  font-weight: 600;
}

.model-card-compact-link:hover {
  color: #d4952a;
}

/* Hero with Category Background */
.cat-hero-bg {
  background: linear-gradient(135deg, #0f1923 0%, #1a2332 60%, #2c3e50 100%);
  position: relative;
}

.cat-hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/images/detail-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}

/* Section Titles */
.section-title-m7 {
  font-size: 2rem;
  font-weight: 800;
  color: #0f1923;
  margin-bottom: 12px;
}

.section-subtitle-m7 {
  font-size: 1rem;
  color: #6c757d;
  max-width: 600px;
}

/* Detail Page Adjustments */
.detail-section {
  padding: 80px 0;
  background: #f8f9fa;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

@media (max-width: 768px) {
  .detail-grid {
    grid-template-columns: 1fr;
    padding: 24px;
  }
}

.detail-img-container {
  background: #f8f9fa;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-img-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.detail-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.detail-model {
  font-size: 2rem;
  font-weight: 800;
  color: #0f1923;
  margin-bottom: 8px;
}

.detail-type {
  font-size: 1.1rem;
  color: #6c757d;
  margin-bottom: 24px;
}

.detail-standard {
  display: inline-block;
  background: #d4952a;
  color: #fff;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 24px;
  width: fit-content;
}