/* ========================================
   浙江慈严豪申海运有限公司 - 主样式表
   ======================================== */

/* CSS Variables - 设计系统 */
:root {
  /* 主色调 - 深海蓝 */
  --primary: #005EB8;
  --primary-light: #0056a0;
  --primary-dark: #002b4d;
  
  /* 辅助色 */
  --accent: #00a0e9;
  --accent-light: #4dc3f7;
  
  /* 中性色 */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  /* 文字颜色 */
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-white: #ffffff;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* 字体 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--white);
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  position: relative;
}

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

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

ul, ol {
  list-style: none;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

/* ========================================
   Layout
   ======================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 50px var(--spacing-md);
  box-sizing: border-box;
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-top: var(--spacing-md);
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.header.scrolled .nav-link {
  color: var(--text-primary);
}

.header.scrolled .nav-link:hover {
  color: var(--primary);
}

.header.scrolled .logo-text {
  color: var(--primary);
}

/* Header White - for non-hero pages */
.header.header-white {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.header.header-white .nav-link {
  color: var(--text-primary);
}

.header.header-white .nav-link:hover {
  color: var(--primary);
}

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

.header.header-white .logo-text {
  color: var(--primary);
}

.header.header-white .menu-toggle span {
  background: var(--primary);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  transition: color var(--transition-normal);
}

.logo-text span {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.9;
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--white);
  padding: var(--spacing-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-contact {
  background: var(--primary);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.nav-contact:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.header.scrolled .nav-contact {
  background: var(--primary);
  color: var(--white);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition-fast);
}

.header.scrolled .menu-toggle span {
  background: var(--primary);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(0, 61, 107, 0.85) 0%,
    rgba(0, 43, 77, 0.75) 50%,
    rgba(0, 61, 107, 0.65) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  color: var(--white);
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 50px;
  font-size: 0.875rem;
  margin-bottom: var(--spacing-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  color: var(--white);
}

.hero-title span {
  color: var(--accent-light);
}

.hero-desc {
  font-size: 1.25rem;
  line-height: 1.8;
  opacity: 0.95;
  margin-bottom: var(--spacing-xl);
  color: var(--white);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

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

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 160, 233, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

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

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
}

.stat-number span {
  font-size: 1.5rem;
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.8;
  margin-top: var(--spacing-xs);
}

/* Hero Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--white);
  opacity: 0.7;
  animation: bounce 2s infinite;
}

.scroll-indicator span {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.scroll-icon {
  width: 24px;
  height: 40px;
  border: 2px solid currentColor;
  border-radius: 12px;
  position: relative;
}

.scroll-icon::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: currentColor;
  border-radius: 2px;
  animation: scroll 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

@keyframes scroll {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

/* ========================================
   About Section
   ======================================== */
.about {
  background: var(--gray-50);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.about-badge {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: var(--primary);
  color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-align: center;
}

.about-badge-number {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.about-badge-text {
  font-size: 0.75rem;
  opacity: 0.9;
  margin-top: 4px;
}

.about-content h2 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.about-content p {
  margin-bottom: var(--spacing-md);
  text-align: justify;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.about-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.about-feature-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
}

.about-feature span {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* ========================================
   Services Section
   ======================================== */
.services {
  background: var(--white);
}

.services-wrapper {
  position: relative;
  overflow: hidden;
  width: 100%;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--white);
  font-size: 2rem;
  transition: transform var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========================================
   Timeline / Projects Section
   ======================================== */
.projects {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.projects::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 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='0.03'%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");
}

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

.projects .section-title::after {
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
}

.projects .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent), var(--accent-light));
  border-radius: 2px;
}

.timeline-item {
  display: flex;
  justify-content: flex-end;
  padding-right: calc(50% + 40px);
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-right: 0;
  padding-left: calc(50% + 40px);
}

.timeline-content {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  max-width: 400px;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-5px);
}

.timeline-dot {
  position: absolute;
  top: 50%;
  right: -52px;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  background: var(--accent);
  border-radius: 50%;
  border: 4px solid var(--white);
  box-shadow: 0 0 0 4px var(--accent);
}

.timeline-item:nth-child(even) .timeline-dot {
  right: auto;
  left: -52px;
}

.timeline-year {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: var(--spacing-xs);
}

.timeline-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--spacing-xs);
}

.timeline-desc {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
}

/* ========================================
   Fleet Section
   ======================================== */
.fleet {
  background: var(--gray-50);
}

.fleet-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.fleet-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.fleet-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

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

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

.fleet-card:hover .fleet-image img {
  transform: scale(1.1);
}

.fleet-info {
  padding: var(--spacing-lg);
}

.fleet-info h3 {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.fleet-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.fleet-spec {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.fleet-spec-icon {
  color: var(--accent);
}

.fleet-tag {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 50px;
  margin-top: var(--spacing-md);
}

/* ========================================
   Partners Section
   ======================================== */
.partners {
  background: var(--white);
}

.partners-desc {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
  color: var(--text-secondary);
}

.partners-wrapper {
  position: relative;
  /* overflow: hidden; */
  width: 100%;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-lg);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.partner-card {
  background: var(--gray-50);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  flex-shrink: 0;
}

.partner-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.partner-card a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.partner-logo {
  width: 100%;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background: var(--white);
  border-radius: var(--radius-sm);
}

.partner-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.partner-card h4 {
  font-size: 0.9375rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.partner-card p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
  background: var(--gray-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.contact-info h3 {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.contact-info p {
  margin-bottom: var(--spacing-lg);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
}

.contact-text h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.contact-text p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0;
}

.contact-text a {
  color: var(--primary);
  font-weight: 500;
}

.contact-text a:hover {
  color: var(--accent);
}

.contact-form-wrapper {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-form h3 {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 61, 107, 0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  background: var(--primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.form-submit:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.form-tip {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.verification-group {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.verification-group input {
  flex: 1;
}

.verification-group img {
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-300);
}

/* ========================================
   Map Section
   ======================================== */
.map-section {
  padding: 0;
}

.map-container {
  width: 100%;
  overflow: hidden;
}

#map {
  width: 100%;
  height: 500px;
  min-height: 400px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--gray-900);
  color: var(--white);
}

.footer-top {
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-2xl);
}

.footer-brand h3 {
  font-size: 1.25rem;
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--gray-400);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

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

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

.footer-links h4 {
  font-size: 1rem;
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

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

.footer-contact h4 {
  font-size: 1rem;
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9375rem;
  color: var(--gray-400);
}

.footer-contact-item svg {
  color: var(--accent);
  flex-shrink: 0;
}

.footer-bottom {
  padding: var(--spacing-md) 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* ========================================
   Back to Top Button
   ======================================== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
  z-index: 999;
}

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

.back-to-top:hover {
  background: var(--primary-light);
  transform: translateY(-5px);
}

/* ========================================
   Animations
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ========================================
   About Page Styles
   ======================================== */

/* Page Hero */
.page-hero {
  position: relative;
  height: 60vh;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 61, 107, 0.9) 0%, rgba(0, 43, 77, 0.8) 100%);
}

.page-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--white);
}

.page-hero-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--white);
}

.page-hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 4px;
  color: #e6e6e6;
}

.page-hero-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-size: 0.9375rem;
  opacity: 0.8;
}

.page-hero-breadcrumb a {
  color: var(--white);
  transition: color var(--transition-fast);
}

.page-hero-breadcrumb a:hover {
  color: var(--accent-light);
}

/* Company Introduction */
.company-intro {
  background: var(--white);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.intro-text p {
  margin-bottom: var(--spacing-md);
  text-align: justify;
  line-height: 2;
}

.intro-text p strong {
  color: var(--primary);
  font-weight: 600;
}

.intro-highlights {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.highlight-item:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateX(10px);
}

.highlight-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
}

.highlight-content h4 {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.highlight-content p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0;
}

.intro-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.intro-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.intro-badge {
  position: absolute;
  bottom: 30px;
  right: 30px;
  background: rgba(0, 61, 107, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--white);
}

.intro-badge-icon {
  color: var(--accent-light);
}

.intro-badge-text {
  text-align: left;
}

.intro-badge-number {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-light);
}

.intro-badge-label {
  font-size: 0.875rem;
  opacity: 0.9;
  margin-top: 4px;
}

/* Core Values */
.core-values {
  background: var(--gray-50);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.value-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
}

.value-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.value-icon {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--white);
  transition: transform var(--transition-normal);
}

.value-card:hover .value-icon {
  transform: scale(1.1) rotate(5deg);
}

.value-card h3 {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.value-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Development History */
.development-history {
  background: var(--white);
}

.history-timeline {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.history-timeline::before {
  content: '';
  position: absolute;
  left: 120px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
}

.history-item {
  display: flex;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
  position: relative;
}

.history-item::before {
  content: '';
  position: absolute;
  left: 112px;
  top: 8px;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border-radius: 50%;
  border: 4px solid var(--white);
  box-shadow: 0 0 0 4px var(--accent-light);
}

.history-year {
  width: 130px;
  flex-shrink: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-align: right;
  line-height: 1.3;
  margin-left: -40px;
}

.history-content {
  flex: 1;
  background: var(--gray-50);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.history-content:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateX(10px);
}

.history-content h4 {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.history-content p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}

/* Business Scope */
.business-scope {
  background: var(--gray-50);
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.scope-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  position: relative;
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}

.scope-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.scope-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

.scope-number {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 3rem;
  font-weight: 700;
  color: var(--gray-100);
  line-height: 1;
}

.scope-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  margin-bottom: var(--spacing-md);
  transition: transform var(--transition-normal);
}

.scope-card:hover .scope-icon {
  transform: scale(1.1);
}

.scope-card h3 {
  font-size: 1.125rem;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.scope-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Company Advantages */
.company-advantages {
  background: var(--white);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.advantage-card {
  background: var(--gray-50);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.advantage-card:hover {
  background: var(--white);
  border-color: var(--primary);
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.advantage-icon {
  width: 100px;
  height: 100px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--primary);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.advantage-card:hover .advantage-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  transform: scale(1.1);
}

.advantage-card h3 {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.advantage-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 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='0.03'%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 {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: 2.5rem;
  color: var(--white);
  margin-top: 20px;
  margin-bottom: var(--spacing-md);
}

.cta-content p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.cta-section .btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

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

/* ========================================
   News Page Styles
   ======================================== */

/* News Filter */
.news-filter-section {
  background: var(--white);
  padding: var(--spacing-xl) 0;
}

.news-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--gray-100);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  background: var(--gray-200);
  color: var(--primary);
}

.filter-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* News List */
.news-list-section {
  background: var(--gray-50);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.news-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.news-image {
  position: relative;
  height: 240px;
  overflow: hidden;
}

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

.news-card:hover .news-image img {
  transform: scale(1.1);
}

.news-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  padding: 6px 16px;
  background: var(--primary);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 50px;
}

.news-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

.news-meta svg {
  flex-shrink: 0;
}

.news-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-excerpt {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--primary);
  transition: all var(--transition-fast);
}

.news-link:hover {
  color: var(--accent);
  gap: 12px;
}

.news-link svg {
  transition: transform var(--transition-fast);
}

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

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
}

.pagination-btn {
  min-width: 44px;
  height: 44px;
  padding: 0 var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.pagination-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.pagination-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* =========================================
   Case Page Styles
   ======================================== */

/* Case Filter */
.case-filter-section {
  background: var(--white);
  padding: var(--spacing-xl) 0;
}

.case-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* Case List */
.case-list-section {
  background: var(--gray-50);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.case-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.case-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.case-image {
  position: relative;
  height: 280px;
  overflow: hidden;
}

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

.case-card:hover .case-image img {
  transform: scale(1.1);
}

.case-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 61, 107, 0.95) 0%, rgba(0, 43, 77, 0.9) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.case-card:hover .case-overlay {
  opacity: 1;
}

.case-overlay-content {
  text-align: center;
  color: var(--white);
  padding: var(--spacing-lg);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.case-card:hover .case-overlay-content {
  transform: translateY(0);
}

.case-overlay-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--white);
}

.case-overlay-content p {
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  color: var(--white);
  opacity: 0.95;
}

.case-detail-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--white);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.case-detail-btn:hover {
  background: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.case-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 50px;
  margin-bottom: var(--spacing-sm);
  width: fit-content;
}

.case-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
}

.case-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.case-meta-item svg {
  flex-shrink: 0;
  color: var(--accent);
}

.case-highlights {
  list-style: none;
  padding: 0;
  margin: 0;
}

.case-highlights li {
  position: relative;
  padding-left: 24px;
  margin-bottom: var(--spacing-xs);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.case-highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .partners-wrapper {
    overflow: hidden;
  }
  
  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* About Page Responsive */
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .scope-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-menu .nav-link {
    color: var(--text-primary);
    padding: var(--spacing-sm) 0;
    width: 100%;
    text-align: center;
  }
  
  .nav-menu .nav-link:hover {
    color: var(--primary);
  }
  
  .nav-menu .nav-link.active {
    color: var(--primary);
  }
  
  .nav-menu .nav-contact {
    background: var(--primary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .hero {
    min-height: 600px;
  }
  
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: var(--spacing-lg);
  }
  
  .stat-item {
    flex: 1 1 40%;
  }
  
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .about-image {
    order: -1;
  }
  
  .about-features {
    grid-template-columns: 1fr 1fr;
  }
  
  .services-wrapper {
    overflow: hidden;
    position: relative;
    margin: 0 calc(-1 * var(--spacing-md));
    padding: 0 var(--spacing-md);
    width: calc(100% + var(--spacing-md) * 2);
  }
  
  .services-grid {
    display: flex;
    grid-template-columns: none;
    gap: var(--spacing-md);
    width: max-content;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
  }
  
  .service-card {
    width: calc(100vw - var(--spacing-md) * 2);
    min-width: calc(100vw - var(--spacing-md) * 2);
    max-width: calc(100vw - var(--spacing-md) * 2);
    flex-shrink: 0;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item,
  .timeline-item:nth-child(even) {
    padding-left: 50px;
    padding-right: var(--spacing-md);
    justify-content: flex-start;
  }
  
  .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 8px;
    right: auto;
    display: none;
  }
  
  .timeline-content {
    max-width: 100%;
    padding: var(--spacing-md);
  }
  
  .fleet-grid {
    grid-template-columns: 1fr;
  }
  
  .partners-wrapper {
    overflow: hidden;
    position: relative;
    margin: 0 calc(-1 * var(--spacing-md));
    padding: 0 var(--spacing-md);
    width: calc(100% + var(--spacing-md) * 2);
  }
  
  .partners-grid {
    display: flex;
    grid-template-columns: none;
    gap: var(--spacing-sm);
    width: max-content;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
  }
  
  .partners-grid {
    gap: var(--spacing-sm);
  }
  
  .partner-card {
    width: calc((100vw - var(--spacing-md) * 2 - var(--spacing-sm)) / 2);
    min-width: calc((100vw - var(--spacing-md) * 2 - var(--spacing-sm)) / 2);
    max-width: calc((100vw - var(--spacing-md) * 2 - var(--spacing-sm)) / 2);
    flex-shrink: 0;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .footer-top {
    display: none;
  }
  
  /* About Page Responsive */
  .page-hero {
    height: 50vh;
    min-height: 400px;
  }
  
  .page-hero-title {
    font-size: 2rem;
  }
  
  .page-hero-subtitle {
    font-size: 1rem;
  }
  
  .page-hero-breadcrumb {
    font-size: 0.875rem;
  }
  
  /* News Page Responsive */
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .pagination {
    flex-wrap: wrap;
  }
  
  /* Case Page Responsive */
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .case-image {
    height: 240px;
  }
  
  .intro-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .intro-image {
    order: -1;
  }
  
  .intro-image img {
    height: 300px;
  }
  
  .intro-badge {
    bottom: 20px;
    right: 20px;
    padding: var(--spacing-md);
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .history-timeline::before {
    left: 15px;
  }
  
  .history-item {
    flex-direction: column;
    gap: var(--spacing-sm);
    padding-left: 40px;
  }
  
  .history-item::before {
    left: 7px;
  }
  
  .history-year {
    text-align: left;
    min-width: auto;
    font-size: 1.25rem;
  }
  
  .scope-grid {
    grid-template-columns: 1fr;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-content h2 {
    font-size: 1.75rem;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .cta-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .about-features {
    grid-template-columns: 1fr 1fr;
  }
  
  .partners-wrapper {
    margin: 0 calc(-1 * var(--spacing-md));
    padding: 0 var(--spacing-md);
    width: calc(100% + var(--spacing-md) * 2);
  }
  
  .partners-grid {
    gap: var(--spacing-sm);
  }
  
  .partner-card {
    width: calc((100vw - var(--spacing-md) * 2 - var(--spacing-sm)) / 2);
    min-width: calc((100vw - var(--spacing-md) * 2 - var(--spacing-sm)) / 2);
    max-width: calc((100vw - var(--spacing-md) * 2 - var(--spacing-sm)) / 2);
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  .timeline-item,
  .timeline-item:nth-child(even) {
    padding-left: 45px;
    padding-right: var(--spacing-md);
  }
  
  /* About Page Responsive */
  .page-hero {
    height: 40vh;
    min-height: 350px;
  }
  
  .page-hero-title {
    font-size: 1.75rem;
  }
  
  .page-hero-subtitle {
    font-size: 0.875rem;
    letter-spacing: 2px;
  }
  
  .page-hero-breadcrumb {
    font-size: 0.8125rem;
  }
  
  .intro-highlights {
    grid-template-columns: 1fr;
  }
  
  .highlight-item {
    flex-direction: column;
    text-align: center;
  }
  
  .intro-badge {
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-sm);
  }
  
  .cta-content h2 {
    font-size: 1.5rem;
  }
  
  .cta-content p {
    font-size: 1rem;
  }
  
  /* News Page Responsive */
  .news-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .news-filter {
    gap: var(--spacing-sm);
  }
  
  .filter-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
  }
  
  /* Case Page Responsive */
  .case-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .case-filter {
    gap: var(--spacing-sm);
  }
  
  .case-image {
    height: 220px;
  }
  
  .case-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
}

/* ==========================================
   Article Detail Page Styles
   ========================================== */

.article-section {
  padding: var(--spacing-3xl) 0;
  background: var(--gray-50);
}

.article-wrapper {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-2xl);
  align-items: start;
}

/* Article Main */
.article-main {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-sm);
}

.article-header {
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--gray-200);
}

.article-badge {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--spacing-md);
}

.article-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: var(--spacing-lg);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.meta-item svg {
  color: var(--primary);
}

/* Article Content */
.article-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-primary);
  margin-bottom: var(--spacing-2xl);
}

.article-content h2,
.article-content h3,
.article-content h4 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  font-weight: 600;
}

.article-content h2 {
  font-size: 1.5rem;
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--primary);
}

.article-content h3 {
  font-size: 1.25rem;
}

.article-content h4 {
  font-size: 1.125rem;
}

.article-content p {
  margin-bottom: var(--spacing-md);
  text-align: justify;
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--spacing-lg) 0;
}

.article-content ul,
.article-content ol {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-xl);
}

.article-content li {
  margin-bottom: var(--spacing-xs);
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  color: var(--text-secondary);
  font-style: italic;
}

.article-content code {
  background: var(--gray-100);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: 'Courier New', monospace;
  font-size: 0.875em;
}

.article-content pre {
  background: var(--gray-900);
  color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
}

.article-content pre code {
  background: none;
  padding: 0;
  color: var(--white);
}

/* Article Tags */
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: var(--gray-50);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-xl);
}

.article-tags svg {
  color: var(--primary);
}

.article-tags span {
  color: var(--text-secondary);
  font-weight: 500;
}

.tag-item {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--white);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
}

.tag-item:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* Article Navigation */
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--gray-200);
}

.article-nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--gray-50);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all var(--transition-normal);
}

.article-nav-item:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.article-nav-item svg {
  transition: transform var(--transition-normal);
}

.article-nav-item.prev:hover svg {
  transform: translateX(-4px);
}

.article-nav-item.next:hover svg {
  transform: translateX(4px);
}

.article-nav-item.list {
  flex: 1;
  justify-content: center;
}

/* Article Sidebar */
.article-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-widget {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--primary);
}

/* Related List */
.related-item {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
}

.related-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.related-link {
  display: flex;
  gap: var(--spacing-md);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.related-link:hover {
  opacity: 0.8;
}

.related-image {
  width: 80px;
  height: 60px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
}

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

.related-link:hover .related-image img {
  transform: scale(1.1);
}

.related-content {
  flex: 1;
}

.related-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: var(--spacing-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.related-views {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* Hot List */
.hot-list {
  counter-reset: hot-counter;
}

.hot-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
  counter-increment: hot-counter;
}

.hot-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.hot-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--gray-200);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.hot-number::before {
  content: counter(hot-counter);
}

.hot-item:nth-child(1) .hot-number,
.hot-item:nth-child(2) .hot-number,
.hot-item:nth-child(3) .hot-number {
  background: var(--primary);
  color: var(--white);
}

.hot-link {
  flex: 1;
  text-decoration: none;
}

.hot-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: var(--spacing-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.hot-link:hover .hot-title {
  color: var(--primary);
}

.hot-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Sidebar Contact */
.sidebar-contact .contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.sidebar-contact .contact-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.sidebar-contact .contact-item svg {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.sidebar-contact .contact-item div {
  flex: 1;
}

.sidebar-contact .contact-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.sidebar-contact .contact-item a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* Responsive */
@media (max-width: 1024px) {
  .article-wrapper {
    grid-template-columns: 1fr;
  }
  
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .article-main {
    padding: var(--spacing-lg);
  }
  
  .article-title {
    font-size: 1.5rem;
  }
  
  .article-meta {
    font-size: 0.875rem;
  }
  
  .article-nav {
    flex-direction: column;
  }
  
  .article-nav-item {
    width: 100%;
    justify-content: center;
  }
  
  .sidebar-widget {
    padding: var(--spacing-lg);
  }
}