@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
  --primary: #1a1f2e;
  --primary-light: #252b3d;
  --secondary: #2d3548;
  --accent: #b8964a;
  --accent-light: #d4b76a;
  --accent-dark: #8a6f2e;
  --text: #1e2330;
  --text-light: #6b7280;
  --text-white: #ffffff;
  --bg: #f5f6f8;
  --bg-white: #ffffff;
  --bg-dark: #1a1f2e;
  --border: #e2e5eb;
  --shadow: 0 2px 12px rgba(26, 31, 46, 0.06);
  --shadow-lg: 0 8px 32px rgba(26, 31, 46, 0.1);
  --radius: 6px;
  --radius-lg: 12px;
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ===== HEADER - 金融级稳重 ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition);
  background: transparent;
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: rgba(26, 31, 46, 0.97);
  backdrop-filter: blur(24px);
  border-bottom-color: rgba(184, 150, 74, 0.15);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo { display: flex; align-items: center; gap: 14px; z-index: 1001; }

.logo svg { width: 40px; height: 40px; }

.logo-text {
  color: var(--text-white);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 3px;
  font-family: var(--font);
}

.logo-text span { color: var(--accent); font-weight: 500; }

.nav { display: flex; align-items: center; gap: 4px; }

.nav a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: var(--radius);
  position: relative;
  transition: var(--transition);
  letter-spacing: 0.5px;
}

.nav a:hover, .nav a.active {
  color: var(--accent-light);
  background: rgba(184, 150, 74, 0.08);
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 16px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: var(--transition);
}

.nav a:hover::after, .nav a.active::after { transform: translateX(-50%) scaleX(1); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text-white);
  border-radius: 1px;
  transition: var(--transition);
}

.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); }

/* ===== HERO - 精密仪器感 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #141824 0%, #1a1f2e 40%, #252b3d 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(184, 150, 74, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 150, 74, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(184, 150, 74, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(45, 53, 72, 0.4) 0%, transparent 50%);
  z-index: 3;
}

.hero-content {
  position: relative;
  z-index: 4;
  text-align: center;
  color: var(--text-white);
  max-width: 880px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(184, 150, 74, 0.1);
  border: 1px solid rgba(184, 150, 74, 0.25);
  padding: 10px 24px;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--accent-light);
  margin-bottom: 32px;
  animation: fadeInUp 0.8s ease;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
}

.hero-badge .pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2.5s infinite;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.2s both;
  letter-spacing: 1px;
}

.hero h1 .highlight {
  color: var(--accent-light);
  position: relative;
}

.hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(184, 150, 74, 0.15);
  z-index: -1;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 44px;
  line-height: 1.85;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease 0.4s both;
  font-weight: 300;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-cert-badges {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 48px;
  animation: fadeInUp 0.8s ease 0.8s both;
  flex-wrap: wrap;
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(184, 150, 74, 0.2);
  border-radius: 4px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.5px;
  font-weight: 500;
}

.cert-badge svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  animation: bounce 2.5s infinite;
}

.hero-scroll svg {
  width: 28px;
  height: 28px;
  color: rgba(255, 255, 255, 0.35);
}

/* ===== BUTTONS - 金属质感 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font);
  letter-spacing: 0.5px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  box-shadow: 0 4px 16px rgba(184, 150, 74, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(184, 150, 74, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text-white);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(184, 150, 74, 0.08);
}

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

.btn-dark:hover { background: var(--secondary); transform: translateY(-2px); }

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); }

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

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 14px;
}

.section-tag::before, .section-tag::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
  line-height: 1.3;
  letter-spacing: 0.5px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
  font-weight: 300;
}

/* ===== STATS - 数据面板 ===== */
.stats {
  background: var(--primary);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(184, 150, 74, 0.1);
  border-bottom: 1px solid rgba(184, 150, 74, 0.1);
}

.stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(rgba(184, 150, 74, 0.02) 1px, transparent 1px);
  background-size: 100% 4px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.stat-item {
  text-align: center;
  padding: 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.stat-item:last-child { border-right: none; }

.stat-number {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 8px;
  font-family: 'Georgia', serif;
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 1px;
}

/* ===== SERVICE CARDS - 精密卡片 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(184, 150, 74, 0.2);
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(184, 150, 74, 0.08), rgba(45, 53, 72, 0.06));
  border: 1px solid rgba(184, 150, 74, 0.12);
}

.service-icon svg { width: 26px; height: 26px; color: var(--accent-dark); }

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  letter-spacing: 0.3px;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 18px;
  line-height: 1.7;
}

.service-card .learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-dark);
}

.service-card .learn-more svg { width: 14px; height: 14px; transition: var(--transition); }
.service-card:hover .learn-more svg { transform: translateX(4px); }

/* ===== FEATURE SECTION ===== */
.feature-section { background: var(--bg); }

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 100px;
}

.feature-row:last-child { margin-bottom: 0; }

.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }

.feature-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(145deg, var(--primary), var(--secondary));
  border: 1px solid rgba(184, 150, 74, 0.1);
}

.feature-visual svg { width: 100%; height: 100%; }

.feature-visual .floating-badge {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.96);
  padding: 12px 18px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.floating-badge .badge-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-badge .badge-icon svg { width: 18px; height: 18px; color: #fff; }

.floating-badge .badge-text { font-size: 0.75rem; font-weight: 600; color: var(--primary); }
.floating-badge .badge-text span { display: block; font-size: 0.7rem; font-weight: 400; color: var(--text-light); }

.feature-text h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
  line-height: 1.3;
  letter-spacing: 0.3px;
}

.feature-text p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 22px;
  line-height: 1.85;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text);
}

.feature-list li svg {
  width: 18px;
  height: 18px;
  color: var(--accent-dark);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== PRODUCTS ===== */
.products-filter {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  border: 1.5px solid var(--border);
  border-radius: 4px;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-white);
  color: var(--text);
  font-family: var(--font);
  letter-spacing: 0.3px;
}

.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: rgba(184, 150, 74, 0.06);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(184, 150, 74, 0.2);
}

.product-image {
  aspect-ratio: 16/10;
  background: linear-gradient(145deg, var(--primary-light), var(--secondary));
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-image svg { width: 55%; height: 55%; opacity: 0.5; transition: var(--transition); }
.product-card:hover .product-image svg { opacity: 0.7; transform: scale(1.04); }

.product-image .product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--accent);
  color: #fff;
  padding: 4px 12px;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.product-info { padding: 22px; }

.product-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
  letter-spacing: 0.3px;
}

.product-info p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 14px;
  line-height: 1.65;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.product-features span {
  padding: 3px 10px;
  background: var(--bg);
  border-radius: 3px;
  font-size: 0.72rem;
  color: var(--text-light);
  border: 1px solid var(--border);
}

/* ===== SOLUTION SECTION ===== */
.solution-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.solution-tab {
  padding: 12px 28px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-white);
  color: var(--text);
  font-family: var(--font);
  letter-spacing: 0.3px;
}

.solution-tab:hover, .solution-tab.active {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: rgba(184, 150, 74, 0.06);
}

.solution-content { display: none; }
.solution-content.active { display: block; animation: fadeIn 0.5s ease; }

.solution-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.solution-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(145deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(184, 150, 74, 0.1);
}

.solution-visual svg { width: 65%; height: 65%; opacity: 0.45; }

.solution-text h3 {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}

.solution-text p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 18px;
  line-height: 1.85;
}

.solution-advantages {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 22px;
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.advantage-item svg { width: 18px; height: 18px; color: var(--accent-dark); flex-shrink: 0; margin-top: 2px; }
.advantage-item span { font-size: 0.88rem; color: var(--text); }

/* ===== AI SECTION - 科技感 ===== */
.ai-section {
  background: linear-gradient(160deg, #141824 0%, #1a1f2e 50%, #1e2330 100%);
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(184, 150, 74, 0.08);
  border-bottom: 1px solid rgba(184, 150, 74, 0.08);
}

.ai-section::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 150, 74, 0.04) 0%, transparent 70%);
}

.ai-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(184, 150, 74, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 150, 74, 0.015) 1px, transparent 1px);
  background-size: 50px 50px;
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.ai-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}

.ai-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(184, 150, 74, 0.25);
  transform: translateY(-4px);
}

.ai-card .ai-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(184, 150, 74, 0.15), rgba(184, 150, 74, 0.04));
  border: 1px solid rgba(184, 150, 74, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.ai-card .ai-icon svg { width: 24px; height: 24px; color: var(--accent-light); }

.ai-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-white); margin-bottom: 8px; letter-spacing: 0.3px; }
.ai-card p { font-size: 0.85rem; color: rgba(255, 255, 255, 0.5); line-height: 1.7; }

/* ===== NEWS ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(184, 150, 74, 0.15);
}

.news-image {
  aspect-ratio: 16/9;
  background: linear-gradient(145deg, var(--primary-light), var(--secondary));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.news-image svg { width: 35%; height: 35%; opacity: 0.25; }

.news-date {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--accent);
  color: #fff;
  padding: 5px 12px;
  border-radius: 3px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.news-body { padding: 22px; }

.news-category {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(184, 150, 74, 0.08);
  color: var(--accent-dark);
  border-radius: 3px;
  font-size: 0.72rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.news-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  letter-spacing: 0.3px;
}

.news-body p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== PARTNERS ===== */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.partner-item {
  aspect-ratio: 2/1;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  transition: var(--transition);
}

.partner-item:hover {
  border-color: rgba(184, 150, 74, 0.3);
  box-shadow: var(--shadow);
}

.partner-item svg { width: 75%; height: 55%; opacity: 0.35; transition: var(--transition); }
.partner-item:hover svg { opacity: 0.6; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(160deg, #141824 0%, #1a1f2e 60%, #252b3d 100%);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(184, 150, 74, 0.08);
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 150, 74, 0.06) 0%, transparent 70%);
}

.cta-section h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
  letter-spacing: 0.5px;
}

.cta-section p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
  font-weight: 300;
}

.cta-buttons { display: flex; gap: 14px; justify-content: center; position: relative; z-index: 1; }

/* ===== FOOTER ===== */
.footer {
  background: #131720;
  color: var(--text-white);
  padding: 72px 0 0;
  border-top: 1px solid rgba(184, 150, 74, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 14px;
  line-height: 1.7;
  font-weight: 300;
}

.footer-social { display: flex; gap: 10px; margin-top: 18px; }

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer-social a:hover {
  border-color: var(--accent);
  background: rgba(184, 150, 74, 0.08);
}

.footer-social a svg { width: 16px; height: 16px; color: rgba(255, 255, 255, 0.5); }

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-white);
  letter-spacing: 0.5px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
  padding: 5px 0;
  transition: var(--transition);
  font-weight: 300;
}

.footer-col a:hover { color: var(--accent-light); padding-left: 4px; }

.footer-bottom {
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.25);
}

/* ===== AI CHATBOT ===== */
.ai-chatbot { position: fixed; bottom: 28px; right: 28px; z-index: 999; }

.chatbot-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(184, 150, 74, 0.3);
  transition: var(--transition);
  position: relative;
}

.chatbot-toggle:hover { transform: scale(1.08); }
.chatbot-toggle svg { width: 26px; height: 26px; color: #fff; }

.chatbot-toggle .pulse-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid var(--accent);
  animation: pulseRing 2.5s infinite;
}

.chatbot-panel {
  position: absolute;
  bottom: 72px;
  right: 0;
  width: 360px;
  max-height: 500px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: none;
  flex-direction: column;
  animation: slideUp 0.3s ease;
  border: 1px solid var(--border);
}

.chatbot-panel.active { display: flex; }

.chatbot-header {
  background: linear-gradient(145deg, var(--primary), var(--secondary));
  padding: 18px;
  color: var(--text-white);
  display: flex;
  align-items: center;
  gap: 12px;
}

.chatbot-header .bot-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(184, 150, 74, 0.15);
  border: 1px solid rgba(184, 150, 74, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.chatbot-header .bot-avatar svg { width: 20px; height: 20px; color: var(--accent-light); }

.chatbot-header .bot-info h4 { font-size: 0.92rem; font-weight: 700; }

.chatbot-header .bot-info span {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.55);
  display: flex;
  align-items: center;
  gap: 4px;
}

.chatbot-header .bot-info span .online-dot { width: 6px; height: 6px; background: #4caf50; border-radius: 50%; }

.chatbot-close {
  margin-left: auto;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  padding: 4px;
}

.chatbot-close svg { width: 18px; height: 18px; }

.chatbot-messages {
  flex: 1;
  padding: 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 320px;
}

.chat-message {
  display: flex;
  gap: 10px;
  animation: fadeInUp 0.3s ease;
}

.chat-message.bot { align-self: flex-start; }
.chat-message.user { align-self: flex-end; flex-direction: row-reverse; }

.chat-message .msg-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.chat-message.bot .msg-avatar { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); }
.chat-message.user .msg-avatar { background: var(--secondary); }

.chat-message .msg-avatar svg { width: 14px; height: 14px; color: white; }

.chat-message .msg-bubble {
  max-width: 240px;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.82rem;
  line-height: 1.6;
}

.chat-message.bot .msg-bubble {
  background: var(--bg);
  color: var(--text);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border);
}

.chat-message.user .msg-bubble {
  background: var(--secondary);
  color: var(--text-white);
  border-bottom-right-radius: 4px;
}

.chatbot-input {
  padding: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
}

.chatbot-input input {
  flex: 1;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.85rem;
  font-family: var(--font);
  outline: none;
  transition: var(--transition);
  background: var(--bg);
}

.chatbot-input input:focus { border-color: var(--accent); }

.chatbot-input button {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.chatbot-input button:hover { background: var(--accent-dark); }
.chatbot-input button svg { width: 16px; height: 16px; color: #fff; }

.chat-quick-replies { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }

.quick-reply {
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.72rem;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-white);
  color: var(--text);
  font-family: var(--font);
}

.quick-reply:hover { border-color: var(--accent); color: var(--accent-dark); }

/* ===== PAGE BANNER ===== */
.page-banner {
  background: linear-gradient(160deg, #141824 0%, #1a1f2e 60%, #252b3d 100%);
  padding: 150px 0 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(184, 150, 74, 0.08);
}

.page-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(184, 150, 74, 0.06) 0%, transparent 60%),
    linear-gradient(rgba(184, 150, 74, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 150, 74, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 50px 50px, 50px 50px;
}

.page-banner h1 {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text-white);
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
  letter-spacing: 1px;
}

.page-banner p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.5);
  position: relative;
  z-index: 1;
  font-weight: 300;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 0.88rem;
  position: relative;
  z-index: 1;
}

.breadcrumb a { color: rgba(255, 255, 255, 0.4); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb span { color: var(--accent-light); }

/* ===== ABOUT PAGE ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-visual { position: relative; }

.about-visual .main-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(145deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(184, 150, 74, 0.1);
}

.about-visual .main-img svg { width: 55%; height: 55%; opacity: 0.35; }

.about-visual .exp-badge {
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--bg-white);
}

.exp-badge .exp-number { font-size: 2.2rem; font-weight: 900; color: #fff; line-height: 1; }
.exp-badge .exp-text { font-size: 0.65rem; font-weight: 600; color: rgba(255,255,255,0.9); letter-spacing: 1px; }

.about-text h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 18px;
  line-height: 1.3;
  letter-spacing: 0.3px;
}

.about-text p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 14px;
  line-height: 1.85;
}

.timeline { position: relative; padding-left: 36px; }

.timeline::before {
  content: '';
  position: absolute;
  left: 13px;
  top: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--border));
}

.timeline-item { position: relative; padding-bottom: 28px; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -27px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-item .year { font-size: 0.82rem; font-weight: 700; color: var(--accent-dark); margin-bottom: 3px; letter-spacing: 0.5px; }
.timeline-item h4 { font-size: 1rem; font-weight: 700; color: var(--primary); margin-bottom: 3px; }
.timeline-item p { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; }

/* ===== TEAM ===== */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.team-card {
  text-align: center;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(184, 150, 74, 0.15);
}

.team-avatar {
  aspect-ratio: 1;
  background: linear-gradient(145deg, var(--primary-light), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-avatar svg { width: 45%; height: 45%; opacity: 0.35; }

.team-info { padding: 18px; }
.team-info h4 { font-size: 1rem; font-weight: 700; color: var(--primary); margin-bottom: 3px; }
.team-info span { font-size: 0.82rem; color: var(--accent-dark); }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }

.contact-info-list { display: flex; flex-direction: column; gap: 20px; margin-bottom: 28px; }

.contact-info-item { display: flex; gap: 14px; align-items: flex-start; }

.contact-info-item .icon-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(184, 150, 74, 0.08), rgba(45, 53, 72, 0.06));
  border: 1px solid rgba(184, 150, 74, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-item .icon-box svg { width: 22px; height: 22px; color: var(--accent-dark); }

.contact-info-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--primary); margin-bottom: 3px; }
.contact-info-item p { font-size: 0.88rem; color: var(--text-light); }

.contact-form {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border);
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
  letter-spacing: 0.3px;
}

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: var(--font);
  transition: var(--transition);
  outline: none;
  background: var(--bg-white);
  color: var(--text);
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(184, 150, 74, 0.08);
}

.form-group textarea { min-height: 110px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

/* ===== MAP ===== */
.map-container {
  width: 100%;
  height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(145deg, var(--primary-light), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border: 1px solid rgba(184, 150, 74, 0.1);
}

.map-container svg { width: 80%; height: 80%; opacity: 0.25; }

.map-pin { position: absolute; width: 18px; height: 18px; }

.map-pin::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2.5s infinite;
}

.map-pin::after {
  content: '';
  position: absolute;
  top: -9px;
  left: -9px;
  width: 36px;
  height: 36px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  opacity: 0.25;
  animation: pulseRing 2.5s infinite;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInLeft { from { opacity: 0; transform: translateX(-30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes fadeInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes pulseRing { 0% { transform: scale(0.8); opacity: 1; } 100% { transform: scale(2); opacity: 0; } }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); } 40% { transform: translateX(-50%) translateY(-10px); } 60% { transform: translateX(-50%) translateY(-5px); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.animate-on-scroll { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }
.animate-delay-5 { transition-delay: 0.5s; }

/* ===== MARQUEE ===== */
.marquee-section {
  overflow: hidden;
  padding: 18px 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ===== INDUSTRY BADGE ===== */
.industry-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(184, 150, 74, 0.08), rgba(45, 53, 72, 0.04));
  border: 1px solid rgba(184, 150, 74, 0.15);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--accent-dark);
  font-weight: 600;
  letter-spacing: 1px;
}

/* ===== ENHANCED CARD EFFECTS ===== */
.service-card,
.product-card,
.news-card,
.ai-card {
  position: relative;
}

.service-card::after,
.product-card::after,
.news-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  box-shadow: 0 0 0 0 rgba(184, 150, 74, 0);
  transition: box-shadow 0.35s ease;
  pointer-events: none;
}

.service-card:hover::after,
.product-card:hover::after,
.news-card:hover::after {
  box-shadow: 0 0 0 1px rgba(184, 150, 74, 0.15);
}

.marquee-track {
  display: flex;
  gap: 60px;
  animation: marquee 35s linear infinite;
  width: max-content;
}

.marquee-track span {
  font-size: 1.1rem;
  font-weight: 700;
  color: rgba(26, 31, 46, 0.06);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 4px;
}

@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ===== PROCESS STEPS ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 12.5%;
  width: 75%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--border));
}

.process-step { text-align: center; position: relative; }

.step-number {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--bg-white);
  border: 2.5px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--accent-dark);
  position: relative;
  z-index: 1;
  font-family: 'Georgia', serif;
}

.process-step h4 { font-size: 0.95rem; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.process-step p { font-size: 0.82rem; color: var(--text-light); line-height: 1.6; }

/* ===== TESTIMONIAL ===== */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.testimonial-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

.testimonial-card:hover { box-shadow: var(--shadow-lg); border-color: rgba(184, 150, 74, 0.15); }

.testimonial-card .quote-icon { width: 36px; height: 36px; color: var(--accent); opacity: 0.25; margin-bottom: 14px; }

.testimonial-card p {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 18px;
  font-style: italic;
}

.testimonial-author { display: flex; align-items: center; gap: 10px; }

.testimonial-author .author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--primary-light), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
}

.testimonial-author .author-avatar svg { width: 18px; height: 18px; color: rgba(255, 255, 255, 0.5); }
.testimonial-author h5 { font-size: 0.88rem; font-weight: 700; color: var(--primary); }
.testimonial-author span { font-size: 0.78rem; color: var(--text-light); }

/* ===== FAQ ===== */
.faq-list { max-width: 760px; margin: 0 auto; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  transition: var(--transition);
  background: var(--bg-white);
}

.faq-item:hover { border-color: rgba(184, 150, 74, 0.3); }

.faq-question {
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--primary);
  font-size: 0.95rem;
  background: var(--bg-white);
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.faq-question:hover { background: var(--bg); }

.faq-question svg { width: 18px; height: 18px; color: var(--accent-dark); transition: var(--transition); flex-shrink: 0; }
.faq-item.active .faq-question svg { transform: rotate(180deg); }

.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner { padding: 0 22px 18px; font-size: 0.9rem; color: var(--text-light); line-height: 1.8; }
.faq-item.active .faq-answer { max-height: 300px; }

/* ===== IMAGE GALLERY ===== */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.gallery-item {
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(145deg, var(--primary-light), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  border: 1px solid rgba(184, 150, 74, 0.08);
}

.gallery-item:hover { transform: scale(1.04); }
.gallery-item svg { width: 35%; height: 35%; opacity: 0.25; transition: var(--transition); }
.gallery-item:hover svg { opacity: 0.45; }

.gallery-item .gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 10px;
  background: linear-gradient(transparent, rgba(20, 24, 36, 0.85));
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  opacity: 0;
  transition: var(--transition);
}

.gallery-item:hover .gallery-overlay { opacity: 1; }

/* ===== CERTIFICATIONS ===== */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.cert-item {
  text-align: center;
  padding: 28px 18px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.cert-item:hover { border-color: rgba(184, 150, 74, 0.3); box-shadow: var(--shadow); }

.cert-item svg { width: 42px; height: 42px; color: var(--accent-dark); margin-bottom: 10px; }
.cert-item h4 { font-size: 0.9rem; font-weight: 600; color: var(--primary); }

/* ===== LOADING ===== */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.page-loader.hidden { opacity: 0; pointer-events: none; }

.loader-spinner {
  width: 44px;
  height: 44px;
  border: 2.5px solid rgba(184, 150, 74, 0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: rotate 0.8s linear infinite;
}

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: 28px;
  left: 28px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary);
  border: 1px solid rgba(184, 150, 74, 0.2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 998;
  box-shadow: var(--shadow);
}

.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--secondary); transform: translateY(-2px); border-color: var(--accent); }
.back-to-top svg { width: 18px; height: 18px; color: var(--accent); }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dark); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .services-grid, .products-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-row { gap: 40px; }
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .partners-grid { grid-template-columns: repeat(4, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  html { font-size: 15px; }
  .header .container { height: 68px; }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(20, 24, 36, 0.98);
    backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    padding: 20px;
    transform: translateX(100%);
    transition: var(--transition);
  }

  .nav.active { transform: translateX(0); }
  .nav a { font-size: 1.15rem; padding: 12px 24px; width: 100%; text-align: center; }
  .menu-toggle { display: flex; }

  .hero h1 { font-size: 1.8rem; letter-spacing: 0.5px; }
  .hero p { font-size: 0.9rem; }
  .hero-cert-badges { gap: 10px; margin-top: 32px; }
  .cert-badge { padding: 6px 12px; font-size: 0.72rem; }
  .section { padding: 64px 0; }
  .section-header h2 { font-size: 1.5rem; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-number { font-size: 2.2rem; }

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

  .feature-row, .feature-row.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 28px;
  }

  .solution-detail { grid-template-columns: 1fr; gap: 28px; }
  .solution-advantages { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; gap: 28px; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }
  .team-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: 1fr; gap: 32px; }
  .process-steps::before { display: none; }
  .step-number { width: 60px; height: 60px; font-size: 1.1rem; }

  .page-banner { padding: 120px 0 56px; }
  .page-banner h1 { font-size: 1.8rem; }

  .chatbot-panel { width: calc(100vw - 40px); right: -10px; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .cta-buttons { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  .hero h1 { font-size: 1.7rem; }
  .stat-number { font-size: 1.8rem; }
  .team-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .about-visual .exp-badge { width: 90px; height: 90px; bottom: -10px; right: -10px; }
  .exp-badge .exp-number { font-size: 1.8rem; }
}