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

:root {
  --primary-color: #1a73e8;
  --primary-dark: #1557b0;
  --primary-light: #e8f0fe;
  --accent-color: #00c853;
  --accent-dark: #009624;
  --text-primary: #202124;
  --text-secondary: #5f6368;
  --text-light: #80868b;
  --bg-white: #ffffff;
  --bg-light: #f8f9fa;
  --bg-dark: #1a1a2e;
  --bg-darker: #16213e;
  --border-color: #e0e0e0;
  --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);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
  --gradient-primary: linear-gradient(135deg, #1a73e8 0%, #00c853 100%);
  --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  --gradient-hero: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-primary: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  color: var(--text-primary);
  background-color: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--primary-dark);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

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

/* ============ Header & Navigation ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  max-width: 280px;
}

.nav-brand-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  flex-shrink: 0;
}

.nav-brand-text {
  line-height: 1.3;
}

.nav-brand-text small {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-secondary);
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 10px 18px;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 15px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover {
  color: var(--primary-color);
  background: var(--primary-light);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 24px;
}

.nav-link.active {
  color: var(--primary-color);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(26, 115, 232, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 115, 232, 0.4);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

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

.btn-large {
  padding: 16px 40px;
  font-size: 16px;
}

.btn-outline {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: white;
  color: var(--text-primary);
  border-color: white;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============ Hero Section ============ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding-top: 100px;
  padding-bottom: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(26, 115, 232, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 200, 83, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(26, 115, 232, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.hero-particles span {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  animation: floatUp 15s linear infinite;
}

@keyframes floatUp {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
    transform: translateY(90vh) scale(1);
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-10vh) scale(0);
    opacity: 0;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-text {
  color: white;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: 13px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-color);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero h1 .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat-number {
  font-size: 32px;
  font-weight: 800;
  color: white;
  display: block;
}

.hero-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.hero-visual {
  position: relative;
  animation: fadeInRight 1s ease 0.3s both;
}

.hero-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-xl);
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.hero-card-title {
  color: white;
  font-size: 18px;
  font-weight: 600;
}

.hero-card-badge {
  padding: 6px 12px;
  background: var(--accent-color);
  color: white;
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
}

.trading-pair {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.trading-pair:last-child {
  border-bottom: none;
}

.pair-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pair-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: white;
}

.pair-icon.usdt { background: linear-gradient(135deg, #26a17b, #1a7f5e); }
.pair-icon.btc { background: linear-gradient(135deg, #f7931a, #e67e00); }
.pair-icon.eth { background: linear-gradient(135deg, #627eea, #4a66d4); }
.pair-icon.sol { background: linear-gradient(135deg, #9945ff, #14f195); }

.pair-name {
  color: white;
  font-weight: 600;
}

.pair-name small {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 400;
}

.pair-price {
  text-align: right;
}

.pair-price .price {
  color: white;
  font-weight: 600;
  font-size: 16px;
}

.pair-price .change {
  font-size: 12px;
  font-weight: 600;
}

.change.up { color: var(--accent-color); }
.change.down { color: #ff5252; }

.floating-element {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  color: white;
  animation: float 4s ease-in-out infinite;
}

.floating-element:nth-child(1) {
  top: -20px;
  right: -30px;
  animation-delay: 0s;
}

.floating-element:nth-child(2) {
  bottom: -20px;
  left: -30px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

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

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-header .section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-header .section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary-color);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}

/* ============ Features Section ============ */
.features {
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-color);
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 28px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--gradient-primary);
  transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 15px;
}

/* ============ Services Section ============ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  align-items: center;
}

.services-image {
  position: relative;
}

.services-image img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.services-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--gradient-primary);
  color: white;
  padding: 20px 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.services-badge .number {
  font-size: 32px;
  font-weight: 800;
  display: block;
}

.services-badge .label {
  font-size: 13px;
  opacity: 0.9;
}

.services-content .service-item {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
  padding: 24px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.services-content .service-item:hover {
  background: var(--bg-light);
  transform: translateX(8px);
}

.service-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}

.service-info h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.service-info p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* ============ Products Section ============ */
.products {
  background: var(--bg-light);
}

.product-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.product-tab {
  padding: 12px 28px;
  background: var(--bg-white);
  border: 2px solid var(--border-color);
  border-radius: 50px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}

.product-tab.active,
.product-tab:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
}

.products-showcase {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.product-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}

.product-info {
  padding: 24px;
}

.product-info h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-info p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 16px;
}

.product-price {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 16px;
}

.product-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.product-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-color);
  font-weight: 600;
  font-size: 14px;
}

.product-download:hover {
  gap: 10px;
}

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

.steps-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  z-index: 0;
}

.step-item {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--bg-white);
  border: 3px solid var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-color);
  transition: var(--transition);
}

.step-item:hover .step-number {
  background: var(--gradient-primary);
  color: white;
  transform: scale(1.1);
}

.step-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-item p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ============ CTA Section ============ */
.cta {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding: 100px 0;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26, 115, 232, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  max-width: 700px;
  margin: 0 auto;
}

.cta h2 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 20px;
}

.cta p {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ============ FAQ Section ============ */
.faq {
  background: var(--bg-light);
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

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

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
  text-align: left;
  background: none;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary-color);
}

.faq-icon {
  width: 32px;
  height: 32px;
  background: var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-left: 16px;
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  background: var(--gradient-primary);
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active .faq-answer {
  padding: 0 24px 24px;
  max-height: 300px;
}

.faq-answer p {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ============ News Section ============ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.news-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.news-card-image {
  height: 220px;
  overflow: hidden;
}

.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.news-card:hover .news-card-image img {
  transform: scale(1.08);
}

.news-card-content {
  padding: 28px;
}

.news-meta {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--text-light);
}

.news-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-card-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.5;
  transition: var(--transition);
}

.news-card:hover .news-card-content h3 {
  color: var(--primary-color);
}

.news-card-content p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.news-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-color);
  font-weight: 600;
  font-size: 14px;
}

.news-read-more:hover {
  gap: 10px;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--bg-darker);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 80px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .nav-brand {
  color: white;
  margin-bottom: 20px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--gradient-primary);
  transform: translateY(-3px);
}

.footer-column h4 {
  color: white;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 24px;
}

.footer-column ul li {
  margin-bottom: 14px;
}

.footer-column ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  transition: var(--transition);
}

.footer-column ul li a:hover {
  color: white;
  padding-left: 6px;
}

.footer-bottom {
  padding: 30px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a:hover {
  color: white;
}

/* ============ Page Banner ============ */
.page-banner {
  background: var(--gradient-hero);
  padding: 160px 0 80px;
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 30% 50%, rgba(26, 115, 232, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 70% 30%, rgba(0, 200, 83, 0.1) 0%, transparent 50%);
}

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

.page-banner h1 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
  animation: fadeInUp 0.8s ease;
}

.page-banner p {
  font-size: 18px;
  opacity: 0.85;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 14px;
  opacity: 0.9;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a:hover {
  color: white;
}

/* ============ About Page ============ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-image {
  position: relative;
}

.about-image img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: var(--gradient-dark);
  padding: 60px 40px;
  border-radius: var(--radius-xl);
  margin-top: 60px;
}

.about-stat {
  text-align: center;
  color: white;
}

.about-stat-number {
  font-size: 42px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.about-stat-label {
  font-size: 14px;
  opacity: 0.8;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.team-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-align: center;
}

.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.team-image {
  height: 240px;
  overflow: hidden;
}

.team-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-info {
  padding: 24px;
}

.team-info h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.team-info .role {
  color: var(--primary-color);
  font-size: 14px;
  font-weight: 600;
}

/* ============ Contact Page ============ */
.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info-card {
  background: var(--bg-light);
  border-radius: var(--radius-xl);
  padding: 48px;
}

.contact-info-card h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 24px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  padding: 20px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.contact-info-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-info-text h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-info-text p {
  color: var(--text-secondary);
  font-size: 14px;
}

.contact-form-wrap {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-lg);
}

.contact-form-wrap h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-white);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px var(--primary-light);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

/* ============ News Detail Page ============ */
.news-detail-hero {
  background: var(--bg-light);
  padding: 120px 0 60px;
}

.news-detail-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--text-secondary);
}

.news-detail-hero h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 20px;
}

.news-detail-body {
  padding: 60px 0;
}

.news-detail-content {
  max-width: 800px;
  margin: 0 auto;
}

.news-detail-content img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin: 32px 0;
}

.news-detail-content p {
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.news-detail-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 40px 0 16px;
}

.news-detail-content ul {
  padding-left: 24px;
  margin-bottom: 20px;
}

.news-detail-content ul li {
  list-style: disc;
  margin-bottom: 10px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ============ Animations on Scroll ============ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ Back to Top ============ */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .products-showcase {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .steps-grid::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 24px;
    gap: 8px;
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    transition: var(--transition);
  }
  
  .nav-menu.open {
    transform: translateY(0);
  }
  
  .nav-actions .btn-secondary {
    display: none;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .section-header h2 {
    font-size: 28px;
  }
  
  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }
  
  .hero h1 {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  
  .hero-stat-number {
    font-size: 24px;
  }
  
  .floating-element:nth-child(1) {
    top: -10px;
    right: 0;
  }
  
  .floating-element:nth-child(2) {
    bottom: -10px;
    left: 0;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .services-badge {
    right: 10px;
    bottom: -10px;
  }
  
  .products-showcase {
    grid-template-columns: 1fr;
  }
  
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .step-number {
    margin-bottom: 12px;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .cta h2 {
    font-size: 28px;
  }
  
  .cta-actions {
    flex-direction: column;
  }
  
  .about-intro {
    grid-template-columns: 1fr;
  }
  
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    padding: 40px 20px;
  }
  
  .team-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-section {
    grid-template-columns: 1fr;
  }
  
  .contact-info-card,
  .contact-form-wrap {
    padding: 32px 24px;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .page-banner {
    padding: 130px 0 60px;
  }
  
  .page-banner h1 {
    font-size: 28px;
  }
  
  .news-detail-hero h1 {
    font-size: 26px;
  }
  
  .footer-column {
    margin-bottom: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .btn-large {
    padding: 14px 28px;
    font-size: 15px;
  }
  
  .hero-stat-number {
    font-size: 20px;
  }
  
  .section-header h2 {
    font-size: 24px;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
  }
  
  .nav-brand {
    font-size: 14px;
    max-width: 200px;
  }
  
  .nav-brand-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
}