/* ==========================================================================
   万代科技有限公司 (Wandai Technology Co., Ltd.) - High-Tech Redesign Stylesheet
   ========================================================================== */

:root {
  --bg-primary: #070913;
  --bg-secondary: #0b0f1d;
  --bg-card: rgba(13, 19, 36, 0.75);
  --bg-card-hover: rgba(20, 30, 56, 0.85);
  
  --accent-cyan: #00f2ff;
  --accent-blue: #0066ff;
  --accent-purple: #8a2be2;
  --accent-emerald: #00ffaa;
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --border-glow: rgba(0, 242, 255, 0.25);
  --border-light: rgba(255, 255, 255, 0.08);
  
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

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

a:hover {
  color: #66f7ff;
}

ul {
  list-style: none;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* Typography Utility */
.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-cyan) 50%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-purple {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Top Navigation Bar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(7, 9, 19, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  padding: 16px 0;
  transition: background var(--transition-normal), padding var(--transition-normal);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(0, 242, 255, 0.4);
}

.logo-icon svg {
  width: 22px;
  height: 22px;
  fill: #fff;
}

.logo-text span {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  display: block;
  font-weight: 400;
  letter-spacing: 1.5px;
  margin-top: -2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 8px 0;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  transition: width var(--transition-normal);
  border-radius: 2px;
}

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

/* Nav Dropdown (项目与解决方案下拉选单) */
.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-dropdown-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-dropdown-toggle:hover,
.nav-dropdown-toggle.active,
.nav-dropdown.open .nav-dropdown-toggle {
  color: var(--accent-cyan);
}

.nav-dropdown-toggle::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  transition: width var(--transition-normal);
  border-radius: 2px;
}

.nav-dropdown-toggle:hover::after,
.nav-dropdown-toggle.active::after,
.nav-dropdown.open .nav-dropdown-toggle::after {
  width: 100%;
}

.dropdown-icon {
  width: 14px;
  height: 14px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .dropdown-icon,
.nav-dropdown.open .dropdown-icon {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 300px;
  background: rgba(10, 14, 28, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: 16px;
  padding: 10px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 242, 255, 0.1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  width: 100%;
  height: 12px;
  background: transparent;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text-main);
  text-decoration: none;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.dropdown-item:hover {
  background: rgba(0, 242, 255, 0.08);
  border-color: rgba(0, 242, 255, 0.2);
  transform: translateX(3px);
}

.dropdown-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(0, 242, 255, 0.1);
  border: 1px solid rgba(0, 242, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.dropdown-item:hover .dropdown-icon-box {
  background: var(--accent-cyan);
  color: #070913;
  box-shadow: 0 0 12px var(--accent-cyan);
}

.dropdown-icon-box svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.dropdown-item-text {
  display: flex;
  flex-direction: column;
}

.dropdown-item-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
  transition: color var(--transition-fast);
}

.dropdown-item:hover .dropdown-item-title {
  color: var(--accent-cyan);
}

.dropdown-item-desc {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 2px;
  line-height: 1.3;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(0, 242, 255, 0.2));
  border: 1px solid var(--accent-cyan);
  color: #fff;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 0 20px rgba(0, 242, 255, 0.15);
  transition: all var(--transition-normal);
}

.nav-btn:hover {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #070913;
  box-shadow: 0 0 30px rgba(0, 242, 255, 0.5);
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 242, 255, 0.08);
  border: 1px solid rgba(0, 242, 255, 0.3);
  border-radius: 20px;
  color: var(--accent-cyan);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 12px var(--accent-cyan); }
  100% { transform: scale(0.9); opacity: 0.7; }
}

/* Hero Section */
.hero {
  position: relative;
  padding: 180px 0 120px;
  overflow: hidden;
}

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

.hero-text-col {
  max-width: 620px;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero-slogan-box {
  background: linear-gradient(90deg, rgba(0, 242, 255, 0.12), rgba(138, 43, 226, 0.12));
  border-left: 4px solid var(--accent-cyan);
  padding: 16px 24px;
  border-radius: 0 12px 12px 0;
  margin-bottom: 28px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.slogan-highlight {
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 1px;
  text-shadow: 0 0 15px rgba(0, 242, 255, 0.4);
  display: flex;
  align-items: center;
  gap: 12px;
}

.slogan-highlight svg {
  width: 28px;
  height: 28px;
  fill: var(--accent-cyan);
  flex-shrink: 0;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #070913;
  font-weight: 700;
  border-radius: 12px;
  box-shadow: 0 0 25px rgba(0, 242, 255, 0.4);
  transition: all var(--transition-normal);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 35px rgba(0, 242, 255, 0.7);
  color: #000;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  color: #fff;
  font-weight: 600;
  border-radius: 12px;
  transition: all var(--transition-normal);
  cursor: pointer;
  font-size: 1rem;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-3px);
}

/* Futuristic Visual Widget / HUD */
.hero-visual-col {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.tech-hud-card {
  position: relative;
  width: 100%;
  max-width: 540px;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 0 30px rgba(0, 242, 255, 0.05);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

.hud-img-wrap {
  width: 100%;
  height: 260px;
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-light);
  margin-bottom: 16px;
}

.hud-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.hud-dots {
  display: flex;
  gap: 6px;
}

.hud-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.hud-dot.red { background: #ff5f56; }
.hud-dot.yellow { background: #ffbd2e; }
.hud-dot.green { background: #27c93f; }

.hud-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.hud-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.hud-stat-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 14px;
  border-radius: 12px;
}

.hud-stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.hud-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Section Header */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Solutions Grid (6 Items) */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 32px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.solution-card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  box-shadow: 0 15px 35px rgba(0, 242, 255, 0.15);
}

.solution-card:hover::before {
  opacity: 1;
}

.solution-icon-box {
  width: 56px;
  height: 56px;
  background: rgba(0, 242, 255, 0.08);
  border: 1px solid rgba(0, 242, 255, 0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent-cyan);
  transition: all var(--transition-normal);
}

.solution-card:hover .solution-icon-box {
  background: var(--accent-cyan);
  color: #070913;
  box-shadow: 0 0 20px var(--accent-cyan);
}

.solution-icon-box svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.solution-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.solution-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  flex-grow: 1;
}

.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent-cyan);
}

.solution-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

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

/* Stats Counter Section */
.stats-section {
  background: linear-gradient(180deg, rgba(7, 9, 19, 0), rgba(11, 15, 29, 0.8), rgba(7, 9, 19, 0));
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 70px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #fff;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #fff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

/* Services Page Styles */
.service-pkg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 80px;
}

.service-pkg-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 40px 32px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.service-pkg-card.featured {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 35px rgba(0, 242, 255, 0.2);
  background: linear-gradient(180deg, rgba(0, 242, 255, 0.05), rgba(13, 19, 36, 0.9));
}

.featured-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  color: #070913;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.pkg-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.pkg-price {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

.pkg-price span {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 400;
}

.pkg-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
}

.pkg-features {
  margin-bottom: 36px;
  flex-grow: 1;
}

.pkg-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.95rem;
  color: var(--text-main);
}

.pkg-features li svg {
  width: 18px;
  height: 18px;
  fill: var(--accent-emerald);
  flex-shrink: 0;
}

/* Dual Column Payment Section (Services Page) */
.payment-dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 60px;
}

.payment-card-box {
  background: linear-gradient(135deg, rgba(13, 19, 36, 0.95), rgba(20, 30, 56, 0.9));
  border: 1px solid var(--border-glow);
  border-radius: 24px;
  padding: 36px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
}

.payment-box-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.payment-box-title svg {
  width: 24px;
  height: 24px;
  fill: var(--accent-cyan);
}

.paypal-alert-notice {
  background: rgba(255, 170, 0, 0.12);
  border-left: 4px solid #ffaa00;
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ffe0b2;
  font-size: 0.9rem;
  font-weight: 600;
}

.paypal-alert-notice svg {
  width: 22px;
  height: 22px;
  fill: #ffaa00;
  flex-shrink: 0;
}

#paypal-button-container {
  margin-top: 20px;
  min-height: 50px;
}

/* Case Studies Showcase */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.case-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.case-img-wrap {
  height: 260px;
  overflow: hidden;
  position: relative;
}

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

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

.case-info {
  padding: 24px;
}

.case-tag {
  color: var(--accent-cyan);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.case-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.case-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Detail Pages Hero & Content */
.page-hero {
  padding: 160px 0 80px;
  background: radial-gradient(circle at 50% 20%, rgba(0, 242, 255, 0.08) 0%, transparent 60%);
  border-bottom: 1px solid var(--border-light);
  text-align: center;
}

.page-hero-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.page-hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto;
  line-height: 1.8;
}

.solution-detail-content {
  padding: 80px 0;
}

.detail-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 80px;
}

.detail-block.reverse {
  direction: rtl;
}
.detail-block.reverse > * {
  direction: ltr;
}

.detail-text h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.detail-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 24px;
}

.detail-feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.detail-feature-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 16px;
}

.detail-feature-item h4 {
  font-size: 1rem;
  color: var(--accent-cyan);
  margin-bottom: 6px;
}

.detail-feature-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

.detail-img-box {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border-glow);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  height: 340px;
}

.detail-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* About Us Page */
.about-hero {
  padding: 160px 0 80px;
  text-align: center;
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 60px;
}

.leadership-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: center;
}

.qr-box {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  max-width: 320px;
  margin: 0 auto;
}

.qr-box img {
  width: 200px;
  height: 200px;
  margin: 0 auto 16px;
  border-radius: 12px;
  background: #fff;
  padding: 10px;
}

.qr-box p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--accent-cyan);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  width: 50%;
  padding: 0 30px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 24px;
  border-radius: 16px;
}

.timeline-year {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

/* Footer */
.footer {
  background: #04060d;
  border-top: 1px solid var(--border-light);
  padding: 80px 0 30px;
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--text-muted);
  margin-top: 16px;
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer-heading {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* Responsive Rules */
@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .hero-text-col {
    max-width: 100%;
  }
  
  .solutions-grid, .service-pkg-grid, .payment-dual-grid, .leadership-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .detail-block, .detail-block.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  
  .about-intro-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 73px;
    left: 0;
    width: 100%;
    background: rgba(7, 9, 19, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    border-bottom: 1px solid var(--border-glow);
    display: none;
  }
  
  .nav-links.show {
    display: flex;
  }

  .nav-dropdown {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    padding: 10px 0;
  }

  .dropdown-menu {
    position: static;
    transform: none !important;
    opacity: 1;
    visibility: visible;
    display: none;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-light);
    margin-top: 6px;
    width: 100%;
    box-shadow: none;
  }

  .nav-dropdown.open .dropdown-menu {
    display: flex;
  }
  
  .solutions-grid, .service-pkg-grid, .cases-grid {
    grid-template-columns: 1fr;
  }

  #contact .container > div {
    grid-template-columns: 1fr !important;
    text-align: center !important;
  }

  #contact .container > div .qr-box {
    margin: 0 auto !important;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .slogan-highlight {
    font-size: 1.25rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 0;
  }
  
  .timeline-item:nth-child(odd), .timeline-item:nth-child(even) {
    left: 0;
    text-align: left;
  }
}