#header-4 {
  background-color: #ffffff;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  z-index: 1030;
  position: sticky;
  top: 0;
  width: 100%;
}
#header-4 .navbar {
  padding: 0.75rem 1rem;
}
#header-4 .navbar-brand img {
  height: 40px;
}
#header-4 .navbar-nav .nav-link {
  color: #333;
  font-weight: 500;
  padding: 0.5rem 1rem;
}
#header-4 .navbar-nav .nav-link:hover,
#header-4 .navbar-nav .nav-link.active {
  color: #007bff;
}
#header-4 .cta-button {
  background-color: #007bff;
  color: #fff;
  padding: 0.5rem 1.25rem;
  border-radius: 25px;
  font-weight: 600;
  transition: all 0.3s ease;
}
#header-4 .cta-button:hover {
  background-color: #0056b3;
  color: #fff;
}
#header-4 .tagline {
  font-size: 0.875rem;
  color: #666;
  text-align: center;
  margin-top: 0.25rem;
}
@media (max-width: 767.98px) {
  #header-4 .cta-button {
    margin-top: 0.75rem;
    width: 100%;
  }
  #header-4 .tagline {
    font-size: 0.75rem;
  }
}



#link-section-5 {
  position: relative;
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  color: #fff;
  text-align: center;
  overflow: hidden;
}

/* Sóng phía trên */
#link-section-5 .wave-top {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  line-height: 0;
  transform: translateY(-1px);
}
#link-section-5 .wave-top svg {
  display: block;
  width: 100%;
  height: 80px;
}

/* Sóng phía dưới */
#link-section-5 .wave-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  line-height: 0;
  transform: translateY(1px) rotate(180deg);
}
#link-section-5 .wave-bottom svg {
  display: block;
  width: 100%;
  height: 80px;
}

#link-section-5 .section-title {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
#link-section-5 .section-subtitle {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Container liên kết */
#link-section-5 .link-container {
  max-width: 1100px;
  margin: 0 auto;
}
#link-section-5 .link-item {
  background: rgba(255,255,255,0.2);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-decoration: none;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s, transform 0.3s;
}
#link-section-5 .link-item:hover {
  background: rgba(255,255,255,0.35);
  transform: translateY(-4px);
}
#link-section-5 .link-item i {
  font-size: 1.25rem;
  margin-right: 0.5rem;
}





/* Footer-14 Styles - Structured Boxed Look */
#footer-14 {
  background-color: #f0f2f5; /* Overall page background or a light footer bg */
  padding: 3rem 0 1.5rem 0;
  font-size: 0.9rem;
  color: #333; /* Default text color */
}
#footer-14 .footer-main-boxed-content {
  background-color: #ffffff; /* White background for the box */
  padding: 2.5rem;
  border: 1px solid #ced4da; /* Standard Bootstrap border */
  border-radius: 0.3rem; /* Subtle rounded corners */
  margin-bottom: 2rem; /* Space before the sub-footer content */
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075); /* Subtle shadow */
}
#footer-14 .footer-logo-f14 {
  max-height: 45px;
  margin-bottom: 1rem;
}
#footer-14 .site-name-text-f14 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #212529;
  text-decoration: none;
  margin-bottom: 0.5rem;
  display: block; /* If no logo, make it block */
}
#footer-14 .site-name-text-f14:hover {
  color: #0056b3;
}
#footer-14 .brand-description-f14 {
  font-size: 0.875rem;
  color: #555;
  line-height: 1.6;
  margin-bottom: 0;
}
#footer-14 .footer-column-title-f14 {
  font-size: 1.1rem;
  font-weight: 500;
  color: #2c3e50; /* A darker, professional title color */
  margin-bottom: 1rem;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid #007bff; /* Accent border for titles */
  display: inline-block;
}
#footer-14 .menu-list-f14 {
  list-style: none;
  padding-left: 0;
}
#footer-14 .menu-list-f14 li {
  margin-bottom: 0.5rem;
}
#footer-14 .menu-list-f14 a {
  color: #007bff; /* Bootstrap primary link color */
  text-decoration: none;
}
#footer-14 .menu-list-f14 a:hover {
  color: #0056b3;
  text-decoration: underline;
}
#footer-14 .contact-list-f14 p,
#footer-14 .contact-list-f14 a {
  margin-bottom: 0.4rem;
  color: #495057;
  text-decoration: none;
  font-size: 0.875rem;
}
#footer-14 .contact-list-f14 i {
  width: 18px;
  margin-right: 0.5rem;
  color: #007bff;
}
#footer-14 .contact-list-f14 a:hover {
  color: #0056b3;
}
#footer-14 .footer-sub-content {
  text-align: center;
  font-size: 0.85rem;
  color: #6c757d; /* Muted color for sub-content */
}
#footer-14 .partner-links-sub-f14 {
  margin-bottom: 1rem;
}
#footer-14 .partner-links-sub-f14 ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1rem;
}
#footer-14 .partner-links-sub-f14 a {
  color: #007bff;
  text-decoration: none;
  font-size: 0.8rem;
}
#footer-14 .partner-links-sub-f14 a:hover {
  color: #0056b3;
  text-decoration: underline;
}
#footer-14 .copyright-sub-f14 p {
  margin-bottom: 0;
  font-size: 0.75rem;
}
@media (max-width: 991.98px) {
  #footer-14 .footer-column-f14 {
    /* Columns inside the boxed content */
    margin-bottom: 2rem;
  }
  #footer-14 .footer-column-f14:last-child {
    margin-bottom: 0;
  }
}