#header-9 {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1030;
  background-color: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}
#header-9 .topbar {
  background-color: #f1f1f1;
  font-size: 0.875rem;
  padding: 0.4rem 1rem;
  color: #333;
}
#header-9 .topbar a {
  color: #333;
  margin-right: 1rem;
}
#header-9 .topbar .social-icons a {
  margin-left: 0.5rem;
  color: #333;
  transition: color 0.3s;
}
#header-9 .topbar .social-icons a:hover {
  color: #007bff;
}
#header-9 .navbar {
  padding: 0.75rem 1rem;
}
#header-9 .navbar-brand img {
  height: 45px;
}
#header-9 .navbar-nav .nav-link {
  color: #222;
  font-weight: 500;
  padding: 0.5rem 1rem;
}
#header-9 .nav-link.active,
#header-9 .nav-link:hover {
  color: #007bff;
}
#header-9 .cta-button {
  background-color: #007bff;
  color: #fff;
  padding: 0.4rem 1.3rem;
  border-radius: 30px;
  font-weight: 600;
  transition: 0.3s;
}
#header-9 .cta-button:hover {
  background-color: #0056b3;
}
@media (max-width: 767.98px) {
  #header-9 .topbar {
    text-align: center;
    font-size: 0.75rem;
  }
  #header-9 .navbar-collapse {
    text-align: center;
  }
  #header-9 .cta-button {
    margin-top: 0.5rem;
    width: 100%;
  }
}



#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-3 {
  background-color: var(--footer-bg-color, #ffffff);
  color: var(--footer-text-color, #555555);
  padding: 3rem 0;
  text-align: center; /* Default center alignment */
  font-size: 0.9rem;
}
#footer-3 .footer-logo-main {
  max-height: 60px;
  margin-bottom: 0.75rem;
}
#footer-3 .footer-tagline {
  font-size: 1rem;
  color: var(--footer-text-color, #555555);
  opacity: 0.8;
  margin-bottom: 2rem;
}
#footer-3 .footer-block-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--footer-text-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
#footer-3 .footer-block-title:first-child {
  margin-top: 0;
}
#footer-3 .footer-main-menus ul,
#footer-3 .footer-partner-links ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem; /* row-gap column-gap */
}
#footer-3 .footer-main-menus a,
#footer-3 .footer-partner-links a {
  color: var(--footer-link-color, #0066cc);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}
#footer-3 .footer-main-menus a:hover,
#footer-3 .footer-main-menus a.active,
#footer-3 .footer-partner-links a:hover {
  color: var(--footer-link-hover-color, #004c99);
  text-decoration: underline;
}
#footer-3 .footer-separator {
  border-top: 1px solid var(--footer-separator-color, #dddddd);
  margin: 2rem auto; /* Centered separator */
  width: 80%;
  max-width: 600px;
}
#footer-3 .footer-social-icons-list a {
  color: var(--footer-social-icon-color, #777777);
  margin: 0 0.75rem;
  font-size: 1.2rem;
  transition: color 0.2s ease;
}
#footer-3 .footer-social-icons-list a:hover {
  color: var(--footer-social-icon-hover-color, #0066cc);
}
#footer-3 .footer-copyright {
  font-size: 0.8rem;
  color: var(--footer-text-color, #555555);
  opacity: 0.7;
  margin-top: 1.5rem;
}
#footer-3 .footer-copyright p {
  margin-bottom: 0;
}