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

:root {
  --red: #D32F2F;
  --red-light: #EF5350;
  --red-dark: #B71C1C;
  --red-bg: rgba(211, 47, 47, 0.06);
  --navy: #1A1F36;
  --navy-light: #2A3050;
  --navy-dark: #0F1225;
  --gray-50: #F8F9FA;
  --gray-100: #F1F3F5;
  --gray-200: #E9ECEF;
  --gray-300: #DEE2E6;
  --gray-400: #ADB5BD;
  --gray-500: #6C757D;
  --gray-600: #495057;
  --gray-700: #343A40;
  --gray-800: #212529;
  --white: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
}

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

body {
  font-family: var(--font);
  color: var(--gray-700);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }

.fa-solid, .fas{color: #fff;}

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

#hyMan{
  position: absolute;
  left: 70%;
  bottom: -30px;
  height: 680px;
}

/* ========== Utility ========== */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.section-label .label-en {
  font-size: 0.7em;
  color: #555;
  margin-left: 12px;
  font-weight: 400;
  letter-spacing: 1px;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .section-label .label-en {
    display: none;
  }
}
.section-label::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--gray-500);
  max-width: 600px;
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font);
}
.btn-primary {
  background: var(--red);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(211, 47, 47, 0.3);
}
.btn-primary:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(211, 47, 47, 0.4);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}
.btn-ghost {
  background: var(--red-bg);
  color: var(--red);
  border: 1.5px solid transparent;
}
.btn-ghost:hover {
  border-color: var(--red);
  background: rgba(211, 47, 47, 0.1);
}
.btn-white {
  background: var(--white);
  color: var(--red);
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

/* ========== Navigation ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  transition: var(--transition);
  background: rgba(5, 10, 25, 0.7);
}
.navbar.scrolled {
  background: rgba(5, 10, 25, 0.7);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
}
.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  z-index: 1001;
}
.navbar.scrolled .logo { color: var(--navy); }
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--red);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: -1px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 400;
  color: rgba(255,255,255,0.8);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--red);
  transition: var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--white); }
.nav-links a.active::after { width: 100%; }
.navbar.scrolled .nav-links a { color: #ADB5BD; }
.navbar.scrolled .nav-links a:hover { color: #ffffff; }
.navbar.scrolled .nav-links a.active { color: var(--red); }
.navbar.scrolled .nav-links a.active::after { background: var(--red); }

.nav-cta {
  padding: 10px 24px !important;
  background: var(--red) !important;
  color: var(--white) !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 500 !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--red-dark) !important; }

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  padding: 4px;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.navbar.scrolled .menu-toggle span { background: var(--navy); }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--navy);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  transition: var(--transition);
}
.mobile-menu.active { display: flex; opacity: 1; }
.mobile-menu a {
  font-size: 1.3rem;
  color: var(--white);
  font-weight: 400;
}

/* ========== Page Banner (sub-pages) ========== */
.page-banner {
  position: relative;
  padding: 160px 0 80px;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-light) 100%);
  overflow: hidden;
  text-align: center;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image:
    linear-gradient(30deg, var(--white) 12%, transparent 12.5%, transparent 87%, var(--white) 87.5%, var(--white)),
    linear-gradient(150deg, var(--white) 12%, transparent 12.5%, transparent 87%, var(--white) 87.5%, var(--white)),
    linear-gradient(30deg, var(--white) 12%, transparent 12.5%, transparent 87%, var(--white) 87.5%, var(--white)),
    linear-gradient(150deg, var(--white) 12%, transparent 12.5%, transparent 87%, var(--white) 87.5%, var(--white)),
    linear-gradient(60deg, rgba(255,255,255,0.08) 25%, transparent 25.5%, transparent 75%, rgba(255,255,255,0.08) 75%, rgba(255,255,255,0.08)),
    linear-gradient(60deg, rgba(255,255,255,0.08) 25%, transparent 25.5%, transparent 75%, rgba(255,255,255,0.08) 75%, rgba(255,255,255,0.08));
  background-size: 80px 140px;
  background-position: 0 0, 0 0, 40px 70px, 40px 70px, 0 0, 40px 70px;
}
.page-banner-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(211,47,47,0.12) 0%, transparent 70%);
  top: -150px;
  right: -100px;
  pointer-events: none;
}
.page-banner h1 {
  position: relative;
  z-index: 2;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.page-banner p {
  position: relative;
  z-index: 2;
  font-size: 1.05rem;
  color: rgba(255,255,255,0.6);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ========== Breadcrumb ========== */
.breadcrumb {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 0.85rem;
}
.breadcrumb a {
  color: rgba(255,255,255,0.5);
}
.breadcrumb a:hover { color: var(--white); }
.breadcrumb span { color: rgba(255,255,255,0.3); }
.breadcrumb .current { color: var(--red-light); }

/* ========== Section Common ========== */
section { padding: 100px 0; }
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header .section-desc {
  margin: 0 auto;
}

/* ========== Hero (Homepage) ========== */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-light) 100%);
  overflow: hidden;
  padding-bottom: 30px;
}
.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background: rgba(5, 10, 25, 0.7);
  overflow: hidden;
}

/* Grid background - static */
.hero-bg-pattern::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(120, 200, 255, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 200, 255, 0.15) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.6;
  animation: gridPulse 3s ease-in-out infinite;
}

/* Short current line that slides out from left */
.hero-bg-pattern::after {
  content: '';
  position: absolute;
  top: 180px;
  left: -200px;  /* Start off-screen to the left */
  width: 0px;     /* Start with zero width, will grow */
  height: 4px;
  /* Same gradient style as grid lines */
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(120, 200, 255, 0.3) 10%,
    rgba(150, 210, 255, 0.6) 30%,
    rgba(200, 230, 255, 0.9) 50%,
    rgba(255, 255, 255, 1) 70%,
    rgba(200, 230, 255, 0.9) 85%,
    rgba(150, 210, 255, 0.6) 95%,
    rgba(120, 200, 255, 0.3) 100%
  );
  /* Blue glow */
  box-shadow: 
    0 0 8px rgba(120, 200, 255, 0.8),
    0 0 16px rgba(100, 180, 255, 0.6),
    0 0 24px rgba(80, 160, 255, 0.4);
  border-radius: 2px;
  /* Grow and slide animation */
  animation: currentGrowSlide 4s ease-out infinite;
  transform: translateY(-50%);
  opacity: 0;
}

/* Moving pulse dot at the tip of the line */
.hero-bg-pattern .ecg-pulse {
  position: absolute;
  top: 50%;
  left: -20px;
  width: 8px;
  height: 8px;
  background: radial-gradient(circle, rgba(255,255,255,1) 0%, rgba(180,220,255,0.9) 50%, transparent 70%);
  border-radius: 50%;
  box-shadow: 
    0 0 15px rgba(255, 255, 255, 1),
    0 0 30px rgba(120, 200, 255, 1),
    0 0 45px rgba(100, 180, 255, 0.8);
  animation: pulseGrowSlide 4s ease-out infinite;
  transform: translateY(-50%);
  z-index: 10;
  opacity: 0;
}

@keyframes gridPulse {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 0.7;
  }
}

/* Line grows from 0 width to full length while sliding right */
@keyframes currentGrowSlide {
  0% {
    left: -200px;
    width: 0px;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  50% {
    left: 10%;
    width: 200px;
    opacity: 1;
  }
  80% {
    left: 60%;
    width: 200px;
    opacity: 1;
  }
  90% {
    opacity: 0.5;
  }
  100% {
    left: 100%;
    width: 200px;
    opacity: 0;
  }
}

/* Pulse dot follows the tip of the growing line */
@keyframes pulseGrowSlide {
  0% {
    left: -20px;
    opacity: 0;
    transform: translateY(-50%) scale(0.5);
  }
  10% {
    opacity: 1;
    transform: translateY(-50%) scale(1.2);
  }
  50% {
    left: calc(10% + 200px);
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }
  80% {
    left: calc(60% + 200px);
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }
  90% {
    opacity: 0.5;
    transform: translateY(-50%) scale(0.8);
  }
  100% {
    left: 100%;
    opacity: 0;
    transform: translateY(-50%) scale(0.5);
  }
}.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(211,47,47,0.15) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
}

/* Additional current effects injected via hero-glow-2 */
.hero-glow-2::before {
  content: '';
  position: absolute;
  top: 10%;
  left: -100%;
  width: 120%;
  height: 4px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(180, 220, 255, 0.7) 25%, 
    rgba(255, 255, 255, 0.9) 50%, 
    rgba(180, 220, 255, 0.7) 75%, 
    transparent 100%);
  box-shadow: 0 0 20px rgba(150, 200, 255, 0.9);
  border-radius: 2px;
  animation: currentFlow 12s linear infinite;
  animation-delay: 3s;
}

@keyframes gridPulse {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes currentFlow {
  0% {
    left: -100%;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    left: 100%;
    opacity: 0;
  }
}.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(211,47,47,0.15) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
}
.hero-glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(211,47,47,0.08) 0%, transparent 70%);
  bottom: -50px;
  left: -50px;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 0 0 80px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(211, 47, 47, 0.15);
  border: 1px solid rgba(211, 47, 47, 0.3);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--red-light);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}
.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--red);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 24px;
}
.hero h1 .text-red { color: var(--red-light); }
.hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 540px;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.hero-stat h3 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--white);
}
.hero-stat h3 span { color: var(--red-light); }
.hero-stat p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 0;
}

/* Hero right visual */
.hero-visual {
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  width: 40%;
  max-width: 500px;
  z-index: 1;
}
.hero-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 22px;
  position: relative;
}
.hero-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 992px) {
  .hero-card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

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

.hero-card-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 12px;
  text-align: center;
  transition: var(--transition);
}

.hero-card-item:hover {
  background: rgba(211, 47, 47, 0.1);
  border-color: rgba(211, 47, 47, 0.3);
  transform: translateY(-4px);
}
.hero-card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  color: rgba(255,255,255,0.9);
}

.hero-card-item h4 {
  font-size: 0.85rem;
  color: var(--white);
  font-weight: 500;
  margin-bottom: 6px;
  line-height: 1.4;
}

.hero-card-item p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  margin: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero-card-item {
    padding: 14px 16px;
  }
  
  .hero-card-text {
    font-size: 0.9rem;
  }
}
/* ========== About ========== */
.about { background: var(--gray-50); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--gray-100);
}
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.about-image-badge {
  position: absolute;
  bottom: 24px;
  right: 24px;
  background: var(--red);
  color: var(--white);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(211,47,47,0.4);
}
.about-content .section-label { justify-content: flex-start; }
.about-content .section-title { text-align: left; }
.about-content .section-desc { text-align: left; margin-bottom: 32px; }
.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 36px;
}
.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.about-feature-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: var(--red-bg);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}
.about-feature h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 2px;
}
.about-feature p {
  font-size: 0.8rem;
  color: var(--gray-500);
}

/* ========== Products ========== */
.products { background: var(--white); }
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.product-card-image {
  height: 200px;
  background: var(--gray-100);
  position: relative;
  overflow: hidden;
}
.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.product-card:hover .product-card-image img {
  transform: scale(1.05);
}
.product-card-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--red);
  transform: scaleX(0);
  transition: var(--transition);
}
.product-card:hover .product-card-image::after { transform: scaleX(1); }
.product-card-body {
  padding: 24px;
}
.product-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--red-bg);
  color: var(--red);
  font-size: 0.72rem;
  font-weight: 500;
  border-radius: 4px;
  margin-bottom: 12px;
}
.product-card-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 8px;
}
.product-card-body p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 16px;
}
.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--red);
}
.product-link:hover { gap: 10px; }
.product-link svg { transition: var(--transition); }

/* ========== Advantages ========== */
.advantages {
  background: var(--navy);
  position: relative;
  overflow: hidden;
}
.advantages .section-label { color: var(--red-light); }
.advantages .section-title { color: var(--white); }
.advantages .section-desc { color: rgba(255,255,255,0.5); }
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.advantage-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--red);
  border-radius: 0 0 4px 4px;
  opacity: 0;
  transition: var(--transition);
}
.advantage-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-4px);
}
.advantage-card:hover::before { opacity: 1; }
.advantage-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: rgba(211, 47, 47, 0.12);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}
.advantage-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}
.advantage-card p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
}

/* ========== Cases ========== */
.cases { background: var(--gray-50); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.case-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.case-card-image {
  height: 180px;
  background: var(--gray-100);
  position: relative;
  overflow: hidden;
}
.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.case-card:hover .case-card-image img {
  transform: scale(1.05);
}
.case-card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,31,54,0.8) 0%, transparent 60%);
}
.case-card-image-text {
  position: absolute;
  bottom: 16px;
  left: 20px;
  color: var(--white);
  font-size: 0.78rem;
  opacity: 0.7;
}
.case-card-body { padding: 24px; }
.case-card-body h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 8px;
}
.case-card-body p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.7;
}
.case-tags {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.case-tag {
  padding: 4px 10px;
  background: var(--gray-100);
  color: var(--gray-600);
  font-size: 0.72rem;
  border-radius: 4px;
}

/* ========== Certifications ========== */
.certs { background: var(--white); }
.certs-track {
  display: flex;
  gap: 32px;
  overflow: hidden;
  position: relative;
}
.certs-track::before,
.certs-track::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100px;
  z-index: 2;
}
.certs-track::before { left: 0; background: linear-gradient(to right, var(--white), transparent); }
.certs-track::after { right: 0; background: linear-gradient(to left, var(--white), transparent); }
.certs-scroll {
  display: flex;
  gap: 32px;
  animation: scroll 30s linear infinite;
}
@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.cert-item {
  min-width: 180px;
  height: 100px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  transition: var(--transition);
}
.cert-item:hover {
  border-color: var(--red);
  background: var(--red-bg);
}
.cert-item-icon { font-size: 1.8rem; }
.cert-item span { font-size: 0.78rem; color: var(--gray-600); font-weight: 500; }

/* ========== CTA ========== */
.cta {
  background: linear-gradient(135deg, var(--red-dark) 0%, var(--red) 50%, var(--red-light) 100%);
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.cta p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
  line-height: 1.8;
}

/* ========== Contact ========== */
.contact { background: var(--gray-50); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}
.contact-info { padding-top: 20px; }
.contact-info .section-label { justify-content: flex-start; }
.contact-info .section-title { text-align: left; }
.contact-info > p {
  color: var(--gray-500);
  margin-bottom: 36px;
  line-height: 1.8;
}
.contact-items { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-item-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--red-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.contact-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}
.contact-item p {
  font-size: 0.88rem;
  color: var(--gray-500);
}
.contact-form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.contact-form-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 24px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gray-600);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font);
  color: var(--gray-700);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--red);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}
.form-submit:hover {
  background: var(--red-dark);
}

/* ========== Footer ========== */
.footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.5);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand .logo {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: 20px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--red);
  color: var(--white);
}
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
}
.footer-col a:hover { color: var(--red-light); }
.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
}

/* ========== Back to Top ========== */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--red);
  color: var(--white);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 16px rgba(211,47,47,0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 100;
}
.back-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
}

/* ========== FAQ ========== */
.faq { background: var(--white); }
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: var(--red);
  box-shadow: 0 2px 12px rgba(211, 47, 47, 0.08);
}
.faq-item.active {
  border-color: var(--red);
  background: var(--white);
  box-shadow: var(--shadow-md);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  text-align: left;
  line-height: 1.5;
  transition: var(--transition);
}
.faq-question:hover { color: var(--red); }
.faq-icon {
  min-width: 20px;
  color: var(--gray-400);
  transition: transform 0.3s ease;
}
.faq-item.active .faq-icon { transform: rotate(180deg); color: var(--red); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
  max-height: 300px;
}
.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.92rem;
  color: var(--gray-600);
  line-height: 1.8;
}
.faq-answer strong { color: var(--red-dark); }

/* ========== Product List Page ========== */
.product-filter {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  justify-content: center;
}
.filter-btn {
  padding: 10px 24px;
  border: 1.5px solid var(--gray-200);
  border-radius: 100px;
  background: var(--white);
  color: var(--gray-600);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}

/* ========== Product Detail ========== */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.product-gallery {
  position: sticky;
  top: 100px;
}
.product-gallery-main {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-50) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  margin-bottom: 16px;
  border: 1px solid var(--gray-200);
}
.product-gallery-thumbs {
  display: flex;
  gap: 12px;
}
.product-thumb {
  width: 80px;
  height: 80px;
  background: var(--gray-100);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}
.product-thumb:hover,
.product-thumb.active {
  border-color: var(--red);
}
.product-info h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.product-info .product-tag { margin-bottom: 16px; }
.product-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--gray-200);
}
.product-meta-item {
  font-size: 0.85rem;
  color: var(--gray-500);
}
.product-meta-item strong {
  color: var(--navy);
  font-weight: 600;
}
.product-desc {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 32px;
}
.product-specs {
  margin-bottom: 32px;
}
.product-specs h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 16px;
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
}
.spec-table tr {
  border-bottom: 1px solid var(--gray-200);
}
.spec-table td {
  padding: 12px 0;
  font-size: 0.88rem;
}
.spec-table td:first-child {
  color: var(--gray-500);
  width: 40%;
}
.spec-table td:last-child {
  color: var(--navy);
  font-weight: 500;
}
.product-actions {
  display: flex;
  gap: 16px;
}

/* ========== Case Detail ========== */
.case-detail-hero {
  padding: 60px 0;
  background: var(--gray-50);
}
.case-detail-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}
.case-detail-main h2 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--navy);
  margin: 32px 0 16px;
}
.case-detail-main p {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 16px;
}
.case-detail-sidebar {
  position: sticky;
  top: 100px;
}
.sidebar-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}
.sidebar-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gray-200);
}
.sidebar-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.88rem;
}
.sidebar-item .label { color: var(--gray-500); }
.sidebar-item .value { color: var(--navy); font-weight: 500; }

/* ========== Animations ========== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Image Placeholders ========== */
.img-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: var(--gray-100);
  min-height: 1px;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .hero-visual { display: none; }
  .hero-content { max-width: 100%; }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .product-gallery { position: static; }
  .case-detail-content { grid-template-columns: 1fr; }
  .case-detail-sidebar { position: static; }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }
  .nav-links { display: none; }
  .menu-toggle { display: flex; }
  .hero { min-height: auto; }
  .hero-content { padding: 140px 0 60px; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-features { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-card { padding: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { justify-content: center; }
  .page-banner { padding: 130px 0 60px; }
  .product-actions { flex-direction: column; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 2rem; }
  .section-title { font-size: 1.6rem; }
  .navbar-inner { height: 64px; }
  .hero-content { padding: 110px 0 48px; }
  .faq-list { gap: 12px; }
}