/* ============================================
   GO Logistics / Ocean-Go.com
   Professional International Logistics Website
   Color: Navy + Gold
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1e293b;
  background: #f7f8fa;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

/* --- Colors --- */
:root {
  --navy-deep: #0B1E3D;
  --navy: #132D52;
  --navy-light: #1A3A6B;
  --gold: #C8963E;
  --gold-light: #F5E6D0;
  --gold-dark: #A67B2E;
  --bg: #F7F8FA;
  --white: #FFFFFF;
  --text-primary: #1E293B;
  --text-secondary: #475569;
  --text-light: #94A3B8;
  --border: #E2E8F0;
  --success: #16A34A;
}

/* --- Language Switcher --- */
.lang-switch {
  display: inline-flex;
  align-items: center;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 0;
  cursor: pointer;
  transition: border-color 0.2s;
  text-decoration: none;
}
.lang-switch:hover { border-color: var(--gold); }
.lang-btn {
  font-size: 13px;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 18px;
  border: none;
  background: transparent;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  transition: all 0.2s;
  display: block;
  line-height: 1.5;
  min-height: 36px;
}
.lang-switch:hover .lang-btn { color: var(--gold); }

/* --- Header --- */
.site-header {
  background: var(--navy-deep);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.5px;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gold);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: var(--navy-deep);
}
.logo-sub { font-size: 12px; color: var(--text-light); font-weight: 400; letter-spacing: 1px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
  padding: 10px 0;
  display: inline-block;
  min-height: 40px;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.nav-cta {
  display: inline-block;
  background: var(--gold);
  color: var(--navy-deep) !important;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-cta:hover { background: var(--gold-dark) !important; }

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 24px;
  cursor: pointer;
}

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 50%, var(--navy-light) 100%);
  color: var(--white);
  padding: 100px 0 120px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(200,150,62,0.08) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
  background: rgba(200,150,62,0.1);
  border: 1px solid rgba(200,150,62,0.25);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.hero h1 { font-size: 48px; font-weight: 800; line-height: 1.15; margin-bottom: 20px; letter-spacing: -1px; }
.hero h1 span { color: var(--gold); }
.hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 36px;
  max-width: 500px;
  line-height: 1.7;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-block;
  background: var(--gold);
  color: var(--navy-deep);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  transition: all 0.2s;
  letter-spacing: 0.3px;
}
.btn-primary:hover { background: var(--gold-dark); transform: translateY(-1px); }
.btn-outline {
  display: inline-block;
  border: 2px solid rgba(255,255,255,0.25);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s;
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
}
.hero-stat h3 { font-size: 32px; font-weight: 800; color: var(--gold); }
.hero-stat p { font-size: 13px; color: rgba(255,255,255,0.5); margin: 4px 0 0 0; }

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 48px;
  backdrop-filter: blur(10px);
}
.route-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.route-item:last-child { border-bottom: none; }
.route-icon {
  width: 44px;
  height: 44px;
  background: rgba(200,150,62,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.route-info h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.route-info span { font-size: 12px; color: rgba(255,255,255,0.5); }

/* --- Section Common --- */
.section { padding: 80px 0; }
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gold);
  background: rgba(200,150,62,0.08);
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 16px;
}
.section-title { font-size: 36px; font-weight: 800; color: var(--navy-deep); margin-bottom: 16px; letter-spacing: -0.5px; }
.section-desc { font-size: 17px; color: var(--text-secondary); max-width: 600px; margin-bottom: 48px; }
.section-center { text-align: center; }
.section-center .section-desc { margin-left: auto; margin-right: auto; }

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  transition: all 0.3s;
  cursor: pointer;
}
.service-card:hover {
  border-color: var(--gold);
  box-shadow: 0 8px 30px rgba(11,30,61,0.08);
  transform: translateY(-4px);
}
.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(11,30,61,0.04);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}
.service-card h3 { font-size: 19px; font-weight: 700; color: var(--navy-deep); margin-bottom: 10px; }
.service-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
.service-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.service-tag {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 4px;
  background: rgba(200,150,62,0.08);
  color: var(--gold-dark);
}

/* --- Why Us --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  text-align: center;
  padding: 36px 20px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.2s;
}
.feature-card:hover { border-color: var(--navy-light); }
.feature-num { font-size: 36px; font-weight: 800; color: var(--gold); margin-bottom: 8px; }
.feature-card h4 { font-size: 16px; font-weight: 700; color: var(--navy-deep); margin-bottom: 8px; }
.feature-card p { font-size: 13px; color: var(--text-secondary); }

/* --- Specialized Section --- */
.specialized-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.spec-card {
  background: var(--navy-deep);
  border-radius: 12px;
  padding: 32px 24px;
  color: var(--white);
  text-align: center;
  transition: transform 0.3s;
}
.spec-card:hover { transform: translateY(-6px); }
.spec-icon { font-size: 36px; margin-bottom: 16px; }
.spec-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.spec-card p { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.6; }

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--navy-deep), var(--navy));
  border-radius: 16px;
  padding: 60px;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.cta-banner h2 { font-size: 32px; font-weight: 800; margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.7); font-size: 16px; margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-primary { background: var(--gold); color: var(--navy-deep); font-size: 16px; padding: 16px 36px; }

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  background: var(--white);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
}
.contact-info {
  background: var(--navy-deep);
  color: var(--white);
  padding: 48px 40px;
}
.contact-info h3 { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.contact-info > p { color: rgba(255,255,255,0.65); font-size: 14px; margin-bottom: 36px; line-height: 1.7; }
.contact-item {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
  align-items: flex-start;
}
.contact-item-icon {
  width: 40px; height: 40px;
  background: rgba(200,150,62,0.15);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-item h5 { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.contact-item span { font-size: 13px; color: rgba(255,255,255,0.55); }
.contact-form {
  padding: 48px 40px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy-deep);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg);
  transition: border-color 0.2s;
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  background: var(--white);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--navy-deep);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
}
.form-submit:hover { background: var(--navy-light); }

/* --- Footer --- */
.site-footer {
  background: var(--navy-deep);
  color: var(--white);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  margin-top: 16px;
  line-height: 1.7;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 12px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

/* --- Trust Section --- */
.trust-section { padding: 80px 0; background: var(--white); }
.trust-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }

/* Partner Logos */
.partner-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: flex-start;
  margin-top: 28px;
}
.partner-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: border-color 0.2s;
}
.partner-badge:hover { border-color: var(--gold); }
.partner-badge-icon {
  font-size: 20px;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(11,30,61,0.06);
  border-radius: 6px;
}

/* Certification Cards */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.cert-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: border-color 0.2s;
}
.cert-card:hover { border-color: var(--gold); }
.cert-check {
  width: 40px; height: 40px;
  background: rgba(22,163,74,0.1);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  color: var(--success);
  flex-shrink: 0;
}
.cert-card h4 { font-size: 14px; font-weight: 700; color: var(--navy-deep); margin-bottom: 2px; }
.cert-card p { font-size: 12px; color: var(--text-secondary); }
.cert-card { min-height: 76px; }

/* Testimonial Card */
.testimonial-card {
  background: var(--navy-deep);
  border-radius: 14px;
  padding: 40px 36px;
  color: var(--white);
  position: relative;
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  left: 28px;
  font-size: 72px;
  color: rgba(200,150,62,0.15);
  font-family: Georgia, serif;
  line-height: 1;
}
.testimonial-card blockquote {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
  margin-bottom: 20px;
  font-style: italic;
  position: relative;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px; height: 44px;
  background: var(--gold);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-deep);
}
.testimonial-author h5 { font-size: 14px; font-weight: 700; }
.testimonial-author span { font-size: 12px; color: rgba(255,255,255,0.5); }

/* --- Mobile Hero: compact route card --- */
.hero-visual-mobile {
  display: none;
  margin-top: 32px;
}
.hero-visual-mobile .hero-card {
  padding: 24px;
  border-radius: 14px;
}
.hero-visual-mobile .route-item { padding: 12px 0; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .specialized-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: 1fr; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--navy-deep);
    padding: 12px 24px 24px;
    gap: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav-links.open a {
    padding: 14px 12px;
    min-height: 48px;
    font-size: 15px;
    border-radius: 8px;
  }
  .nav-links.open a:hover { background: rgba(255,255,255,0.06); }
  .nav-links.open .nav-cta { justify-content: center; margin-top: 8px; }
  .nav-links.open .lang-switch {
    margin-top: 8px;
    justify-content: center;
    border-color: rgba(255,255,255,0.3);
  }
  .mobile-toggle {
    min-width: 48px;
    min-height: 48px;
  }
  .services-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .specialized-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 64px; }
  .hero h1 { font-size: 28px; }
  .hero-stats { gap: 16px; }
  .hero-stat h3 { font-size: 26px; }
  .hero-visual { display: none; }
  .hero-visual-mobile { display: block; }
  .hero .hero-card { padding: 20px; }
  .hero-card .route-item { padding: 10px 0; }
  .section { padding: 56px 0; }
  .section-title { font-size: 26px; }
  .cta-banner { padding: 40px 24px; }
  .cta-banner h2 { font-size: 22px; }
  .form-row { grid-template-columns: 1fr; }
  .btn-primary, .btn-outline { padding: 14px 28px; font-size: 15px; min-height: 48px; display: inline-flex; align-items: center; justify-content: center; }
  .partner-strip { gap: 10px; }
  .partner-badge { padding: 10px 14px; font-size: 13px; min-height: 44px; }
  .form-submit { min-height: 48px; }
  .form-group input, .form-group select, .form-group textarea { padding: 14px 16px; font-size: 15px; }
  .testimonial-card { padding: 28px 24px; }
  .trust-section { padding: 56px 0; }
  .footer-col a { padding: 8px 0; margin-bottom: 4px; }
}