/* ========== CSS Variables ========== */
:root {
  --primary-dark: #0a1628;
  --primary: #1a2744;
  --primary-light: #243557;
  --secondary: #f47920;
  --secondary-light: #ff9a44;
  --secondary-dark: #d4651a;
  --accent: #00c6ff;
  --text-light: #ffffff;
  --text-gray: #b0bec5;
  --text-dark: #1a1a2e;
  --bg-light: #f5f7fa;
  --bg-white: #ffffff;
  --bg-dark: #0d1b2a;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  color: var(--text-dark);
  line-height: 1.7;
  overflow-x: hidden;
  background: var(--bg-white);
}

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

ul {
  list-style: none;
}

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

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

/* ========== Nav ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 22, 40, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-light);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-light);
}

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

.nav-links a {
  color: var(--text-gray);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-light);
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switch {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 3px;
  cursor: pointer;
}

.lang-btn {
  padding: 6px 14px;
  border-radius: 17px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-gray);
  transition: var(--transition);
  border: none;
  background: transparent;
  cursor: pointer;
}

.lang-btn.active {
  background: var(--secondary);
  color: var(--text-light);
}

.btn-contact-nav {
  padding: 8px 20px;
  background: var(--secondary);
  color: var(--text-light);
  border-radius: 24px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-contact-nav:hover {
  background: var(--secondary-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(244, 121, 32, 0.4);
}

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

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

/* ========== Hero ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(165deg, var(--primary-dark) 0%, var(--primary) 40%, #1b3a5c 100%);
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(244, 121, 32, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0, 198, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

/* Grid pattern */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

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

.hero-text {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(244, 121, 32, 0.12);
  border: 1px solid rgba(244, 121, 32, 0.25);
  border-radius: 24px;
  color: var(--secondary-light);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-badge i {
  font-size: 0.7rem;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-light);
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: var(--text-light);
  border-radius: 28px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(244, 121, 32, 0.4);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: var(--text-light);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  border-radius: 28px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}

.btn-outline:hover {
  border-color: var(--secondary);
  color: var(--secondary-light);
  background: rgba(244, 121, 32, 0.06);
}

/* Hero visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-graphic {
  position: relative;
  width: 480px;
  height: 400px;
}

.dashboard-mock {
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 24px;
  backdrop-filter: blur(8px);
}

.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

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

.dash-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dash-dots span:nth-child(1) { background: #ff5f56; }
.dash-dots span:nth-child(2) { background: #ffbd2e; }
.dash-dots span:nth-child(3) { background: #27c93f; }

.dash-title {
  font-size: 0.75rem;
  color: var(--text-gray);
  font-weight: 500;
}

.dash-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.metric-card {
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
}

.metric-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 2px;
}

.metric-label {
  font-size: 0.7rem;
  color: var(--text-gray);
}

.metric-card:nth-child(1) .metric-value { color: var(--secondary-light); }
.metric-card:nth-child(2) .metric-value { color: var(--accent); }
.metric-card:nth-child(3) .metric-value { color: #27c93f; }

.dash-chart {
  height: 140px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
}

.chart-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  transition: var(--transition);
  position: relative;
}

.chart-bar:hover {
  opacity: 0.8;
}

/* Floating badges */
.float-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floatUp 3s ease-in-out infinite;
  z-index: 3;
}

.float-badge.badge-1 {
  top: -20px;
  right: -30px;
  animation-delay: 0s;
}

.float-badge.badge-2 {
  bottom: -10px;
  left: -30px;
  animation-delay: 1.5s;
}

.float-badge i {
  color: var(--secondary);
  font-size: 1rem;
}

.float-badge span {
  color: var(--text-light);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ========== Stats Bar ========== */
.stats-bar {
  background: var(--bg-white);
  padding: 40px 0;
  border-bottom: 1px solid #e8ecf0;
}

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

.stat-item {
  padding: 16px;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-number .orange {
  color: var(--secondary);
}

.stat-label {
  font-size: 0.88rem;
  color: #64748b;
  font-weight: 500;
}

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

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(244, 121, 32, 0.08);
  color: var(--secondary);
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  font-size: 1.05rem;
  color: #64748b;
  line-height: 1.8;
}

/* Dark section variants */
.section-dark {
  background: var(--bg-dark);
}

.section-dark .section-title {
  color: var(--text-light);
}

.section-dark .section-desc {
  color: var(--text-gray);
}

.section-gray {
  background: var(--bg-light);
}

/* ========== About ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-content h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 1.3;
}

.about-content p {
  font-size: 1rem;
  color: #475569;
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-visual {
  position: relative;
}

.about-image-box {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius);
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.about-image-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 70%, rgba(244, 121, 32, 0.15), transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 198, 255, 0.1), transparent 50%);
}

.about-flow {
  position: relative;
  z-index: 1;
}

.flow-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  transition: var(--transition);
}

.flow-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(244, 121, 32, 0.3);
}

.flow-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: rgba(244, 121, 32, 0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary-light);
  font-size: 1rem;
}

.flow-text {
  color: var(--text-light);
  font-size: 0.88rem;
  font-weight: 600;
}

.flow-arrow {
  text-align: center;
  color: rgba(255, 255, 255, 0.2);
  font-size: 0.8rem;
  margin: 4px 0;
}

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

.service-card {
  background: var(--bg-white);
  border: 1px solid #e8ecf0;
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--secondary), var(--secondary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

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

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(244, 121, 32, 0.1), rgba(244, 121, 32, 0.05));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--secondary);
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.9rem;
  color: #64748b;
  line-height: 1.7;
}

/* ========== Advantages ========== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.advantage-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 36px;
  transition: var(--transition);
  display: flex;
  gap: 20px;
}

.advantage-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(244, 121, 32, 0.2);
  transform: translateY(-2px);
}

.adv-icon {
  width: 52px;
  height: 52px;
  min-width: 52px;
  background: rgba(244, 121, 32, 0.12);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--secondary-light);
}

.advantage-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 10px;
}

.advantage-card p {
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.7;
}

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

.customer-card {
  background: var(--bg-white);
  border: 1px solid #e8ecf0;
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}

.customer-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.customer-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--secondary-light);
  margin: 0 auto 20px;
}

.customer-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.customer-card p {
  font-size: 0.88rem;
  color: #64748b;
  line-height: 1.7;
}

/* ========== CTA / Contact ========== */
.cta-section {
  background: linear-gradient(165deg, var(--primary-dark), var(--primary) 60%, #1b3a5c);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(244, 121, 32, 0.06), transparent 60%);
}

.cta-content {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-light);
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.05rem;
  color: var(--text-gray);
  margin-bottom: 36px;
  line-height: 1.8;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  margin-top: 32px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  transition: var(--transition);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--secondary);
}

.contact-item i {
  color: var(--secondary);
  font-size: 1.1rem;
}

.contact-item span {
  color: var(--text-light);
  font-size: 0.95rem;
  font-weight: 500;
}

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

.contact-item a:hover {
  color: var(--secondary-light);
}

/* ========== Footer ========== */
.footer {
  background: #060f1a;
  padding: 48px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-light);
  font-weight: 700;
  font-size: 1.05rem;
}

.footer-logo .logo-icon {
  width: 32px;
  height: 32px;
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  color: var(--text-gray);
  font-size: 0.85rem;
  font-weight: 500;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-bottom p {
  font-size: 0.82rem;
  color: #64748b;
}

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

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

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.4rem;
  }

  .hero-content {
    gap: 40px;
  }

  .hero-graphic {
    width: 380px;
    height: 320px;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }

  .btn-contact-nav {
    display: none;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .cta-content h2 {
    font-size: 1.6rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.6rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary,
  .btn-outline {
    width: 100%;
    justify-content: center;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .advantage-card {
    flex-direction: column;
  }
}