/* Shared page navigation -------------------------------------------------- */
:root {
  --nav-blue: #0f72ee;
  --nav-deep: #0b315e;
  --nav-text: #18385f;
  --nav-border: #d7e6fa;
  --nav-surface: rgba(255, 255, 255, 0.96);
}

html {
  scroll-behavior: smooth;
}

html,
body {
  max-width: 100%;
  overflow-x: clip;
}


.site-nav {
  position: sticky !important;
  top: 0;
  z-index: 1000;
  height: 96px !important;
  margin: 0 !important;
  background: var(--nav-surface) !important;
  border-bottom: 1px solid rgba(15, 65, 119, 0.1) !important;
  box-shadow: 0 8px 24px rgba(9, 45, 86, 0.035) !important;
  backdrop-filter: blur(16px);
}

.site-nav > .nav,
.site-nav > .container > .header-content {
  width: min(1180px, calc(100% - 48px)) !important;
  max-width: none !important;
  height: 96px !important;
  min-height: 0 !important;
  margin: 0 auto !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
}

.site-nav > .container {
  width: 100% !important;
  max-width: none !important;
  height: 100%;
  padding: 0 !important;
}

.site-nav .brand,
.site-nav .logo {
  display: inline-flex !important;
  flex: 0 0 auto;
  align-items: center;
  text-decoration: none;
}

.site-nav .brand img,
.site-nav .logo-mark {
  display: block;
  width: 218px !important;
  height: auto !important;
  max-height: 70px;
  object-fit: contain;
}

/* Use the supplied vector artwork, exported with transparent padding for web navigation. */
.site-nav .brand img[src$="logo.svg"] {
  width: auto !important;
  height: 64px !important;
  max-width: 218px;
  max-height: none;
  content: url("../assets/logo-ai.png");
  mix-blend-mode: normal;
}

.site-nav .links,
.site-nav .nav-links,
.site-nav nav {
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 2.4vw, 38px) !important;
  margin: 0 0 0 auto !important;
  padding: 0 !important;
  background: transparent !important;
}

.site-nav .links a,
.site-nav .nav-links a,
.site-nav nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 96px !important;
  padding: 0 !important;
  color: #425268 !important;
  font-family: var(--font-geist-sans), "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 14px !important;
  font-weight: 400 !important;
  line-height: 1;
  letter-spacing: 0;
  text-decoration: none !important;
  transition: color 180ms ease, transform 180ms ease;
}

.site-nav .links a::after,
.site-nav .nav-links a::after,
.site-nav nav a::after {
  position: absolute;
  right: auto;
  bottom: 20px;
  left: 50%;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--nav-blue);
  content: "";
  opacity: 1;
  transform: none;
  transition: width 320ms cubic-bezier(0.22, 1, 0.36, 1), left 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

.site-nav .links a:hover,
.site-nav .nav-links a:hover,
.site-nav nav a:hover,
.site-nav .links a.active,
.site-nav .nav-links a.active,
.site-nav nav a.active {
  color: #1478f2 !important;
  font-weight: 400 !important;
}

.site-nav .links a:hover::after,
.site-nav .nav-links a:hover::after,
.site-nav nav a:hover::after,
.site-nav .links a.active::after,
.site-nav .nav-links a.active::after,
.site-nav nav a.active::after {
  left: 0;
  width: 100%;
  animation: nav-underline-enter 420ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes nav-underline-enter {
  from {
    left: 50%;
    width: 0;
  }

  to {
    left: 0;
    width: 100%;
  }
}

.site-nav .nav-cta,
.site-nav .phone,
.site-nav .contact-btn {
  box-sizing: border-box;
  display: inline-flex !important;
  flex: 0 0 auto;
  align-items: center;
  min-width: 220px;
  height: 58px !important;
  margin: 0 0 0 36px !important;
  padding: 0 18px !important;
  color: var(--nav-deep) !important;
  background: #f3f8ff !important;
  border: 1px solid #c7ddfb !important;
  border-radius: 16px !important;
  box-shadow: 0 12px 26px rgba(21, 101, 202, 0.1);
  text-decoration: none !important;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.site-nav .nav-cta:hover,
.site-nav .phone:hover,
.site-nav .contact-btn:hover {
  border-color: #9dc5f8 !important;
  box-shadow: 0 14px 30px rgba(21, 101, 202, 0.17);
  transform: translateY(-2px);
}

.site-nav .nav-cta::before,
.site-nav .phone-mark,
.site-nav .phone-icon,
.site-nav .contact-icon {
  display: grid !important;
  width: 38px !important;
  height: 38px !important;
  margin: 0 12px 0 0 !important;
  padding: 0 !important;
  place-items: center;
  color: #fff !important;
  font-size: 20px !important;
  line-height: 1 !important;
  background: #1378ed !important;
  border-radius: 12px !important;
}

.site-nav .nav-cta {
  position: relative;
  justify-content: flex-start;
  padding-left: 70px !important;
  white-space: pre-line;
  font-size: 17px !important;
  font-weight: 800;
  line-height: 1.25 !important;
  text-align: left;
}

.site-nav .nav-cta::before {
  position: absolute;
  top: 10px;
  left: 18px;
  margin: 0 !important;
  content: "☎";
}

.site-nav .contact-btn::before {
  display: grid;
  width: 38px;
  height: 38px;
  margin-right: 12px;
  place-items: center;
  color: #fff;
  font-size: 20px;
  line-height: 1;
  background: #1378ed;
  border-radius: 12px;
  content: "☎";
}

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

.site-nav .contact-btn small,
.site-nav .contact-btn strong {
  display: block;
  line-height: 1.2;
}

.site-nav .contact-btn small {
  margin-bottom: 3px;
  color: #627997;
  font-size: 12px;
  font-weight: 600;
}

.site-nav .contact-btn strong {
  color: var(--nav-deep);
  font-size: 17px;
  letter-spacing: 0.04em;
}

.site-nav .phone small,
.site-nav .phone strong {
  display: block;
  line-height: 1.2;
}

.site-nav .phone small {
  margin-bottom: 3px;
  color: #627997 !important;
  font-size: 12px !important;
  font-weight: 600;
}

.site-nav .phone strong {
  color: var(--nav-deep) !important;
  font-size: 17px !important;
  letter-spacing: 0.04em;
}

.site-nav .header-actions {
  display: flex;
  margin-left: 36px;
}

.mobile-menu-toggle {
  display: none;
}

.site-nav .contact-btn {
  min-width: 0;
  margin: 0 !important;
  font-size: 16px !important;
  font-weight: 800 !important;
}

@media (max-width: 980px) {
  .site-nav,
  .site-nav > .nav,
  .site-nav > .container > .header-content {
    height: 78px !important;
  }

  .site-nav > .nav,
  .site-nav > .container > .header-content {
    width: min(100% - 32px, 720px) !important;
  }

  .site-nav .brand img,
  .site-nav .logo-mark {
    width: 164px !important;
    max-height: 58px;
  }

  .site-nav .links,
  .site-nav .nav-links,
  .site-nav nav {
    gap: 18px !important;
  }

  .site-nav .links a,
  .site-nav .nav-links a,
  .site-nav nav a {
    height: 78px !important;
    font-size: 14px !important;
  }

  .site-nav .phone,
  .site-nav .nav-cta,
  .site-nav .contact-btn,
  .site-nav .header-actions {
    margin-left: 18px !important;
  }
}

@media (max-width: 720px) {
  .site-nav .links,
  .site-nav .nav-links,
  .site-nav nav {
    display: none !important;
  }

  .site-nav .mobile-menu-toggle {
    display: grid;
    width: 44px;
    height: 44px;
    margin-left: auto;
    padding: 0;
    place-items: center;
    border: 1px solid #c7ddfb;
    border-radius: 12px;
    background: #f3f8ff;
    color: var(--nav-deep);
    font-size: 21px;
    line-height: 1;
    cursor: pointer;
  }

  .site-nav .mobile-menu-toggle::before {
    content: "☰";
  }

  .site-nav.mobile-nav-open .mobile-menu-toggle::before {
    content: "×";
    font-size: 27px;
  }

  .site-nav.mobile-nav-open .links,
  .site-nav.mobile-nav-open .nav-links,
  .site-nav.mobile-nav-open nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 16px;
    left: 16px;
    z-index: 3;
    display: grid !important;
    gap: 0 !important;
    margin: 0 !important;
    padding: 8px !important;
    border: 1px solid #d4e5fb;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.98) !important;
    box-shadow: 0 18px 35px rgba(11, 49, 94, 0.14);
  }

  .site-nav.mobile-nav-open .links a,
  .site-nav.mobile-nav-open .nav-links a,
  .site-nav.mobile-nav-open nav a {
    justify-content: flex-start;
    height: 48px !important;
    padding: 0 14px !important;
    border-radius: 9px;
    font-size: 15px !important;
  }

  .site-nav.mobile-nav-open .links a::after,
  .site-nav.mobile-nav-open .nav-links a::after,
  .site-nav.mobile-nav-open nav a::after {
    right: 14px;
    bottom: 0;
    left: 14px;
    width: auto;
    opacity: 0;
  }

  .site-nav.mobile-nav-open .links a.active,
  .site-nav.mobile-nav-open .nav-links a.active,
  .site-nav.mobile-nav-open nav a.active {
    background: #eef5ff;
  }

  .site-nav .phone,
  .site-nav .nav-cta,
  .site-nav .contact-btn {
    min-width: 52px;
    width: 52px;
    margin-left: 10px !important;
    padding: 0 !important;
    justify-content: center;
    font-size: 0 !important;
  }

  .site-nav .nav-cta {
    padding-left: 0 !important;
  }

  .site-nav .nav-cta::before {
    position: static;
  }

  .site-nav .phone small,
  .site-nav .phone strong,
  .site-nav .contact-btn span:not(.contact-icon) {
    display: none;
  }

  .site-nav .contact-btn::before {
    margin: 0;
  }

  .site-nav .phone-mark,
  .site-nav .phone-icon,
  .site-nav .contact-icon {
    margin: 0 !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  body,
  .site-nav *,
  .site-nav *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* Modern compact controls: shared on every standalone page. */
.site-nav .brand img,
.site-nav .logo-mark {
  width: 218px !important;
}

.site-nav .phone-mark,
.site-nav .phone-icon,
.site-nav .contact-icon,
.site-nav .nav-cta::before,
.site-nav .contact-btn::before {
  position: relative;
  display: grid !important;
  place-items: center;
  color: transparent !important;
  font-size: 0 !important;
  background: linear-gradient(135deg, #6671ff, #35a8ff) !important;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px !important;
  box-shadow: 0 8px 18px rgba(66, 103, 244, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.site-nav .phone-mark::after,
.site-nav .phone-icon::after,
.site-nav .contact-icon::after,
.site-nav .nav-cta::after,
.site-nav .contact-btn::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 19px;
  height: 19px;
  background: center / contain no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.05' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6.65 3.75 4.5 5.5c-.95.8-.98 2.2-.22 3.3 3.23 4.7 6.87 8.34 11.57 11.57 1.1.76 2.5.73 3.3-.22l1.75-2.15-3.35-3.35-2.24 1.42c-2.35-1.5-3.88-3.03-5.38-5.38l1.42-2.24L7.99 4.9Z'/%3E%3Cpath d='M15.25 4.5c2.35.2 4.05 1.9 4.25 4.25' opacity='.72'/%3E%3C/svg%3E");
  content: "";
  transform: translate(-50%, -50%);
}

.site-nav .nav-cta::before {
  content: "" !important;
}

.site-nav .contact-btn::before {
  content: "" !important;
}

@media (max-width: 720px) {
  .site-nav .brand img,
  .site-nav .logo-mark {
    width: 196px !important;
    max-height: 64px;
  }

  .site-nav .brand img[src$="logo.svg"] {
    height: 54px !important;
    max-width: 196px;
  }

  .site-nav .mobile-menu-toggle {
    position: relative;
    border: 1px solid #d9e1fa !important;
    border-radius: 15px !important;
    background: linear-gradient(145deg, #fff, #eef3ff) !important;
    box-shadow: 0 8px 18px rgba(54, 75, 142, 0.08), inset 0 1px 0 #fff;
    font-size: 0 !important;
  }

  .site-nav .mobile-menu-toggle::before {
    width: 19px;
    height: 14px;
    background:
      linear-gradient(#183860, #183860) left top / 19px 2px no-repeat,
      linear-gradient(#183860, #183860) left center / 14px 2px no-repeat,
      linear-gradient(#183860, #183860) left bottom / 19px 2px no-repeat;
    border-radius: 999px;
    content: "" !important;
    transition: transform 220ms ease, opacity 180ms ease;
  }

  .site-nav.mobile-nav-open .mobile-menu-toggle::before {
    width: 18px;
    height: 18px;
    background:
      linear-gradient(45deg, transparent 46%, #183860 47% 54%, transparent 55%) center / 100% 100% no-repeat,
      linear-gradient(-45deg, transparent 46%, #183860 47% 54%, transparent 55%) center / 100% 100% no-repeat;
    transform: rotate(90deg);
  }

  .site-nav .phone,
  .site-nav .nav-cta,
  .site-nav .contact-btn {
    display: grid !important;
    flex: 0 0 52px;
    width: 52px !important;
    height: 52px !important;
    min-width: 52px !important;
    padding: 0 !important;
    place-items: center;
  }

  .site-nav .phone-mark,
  .site-nav .phone-icon,
  .site-nav .contact-icon {
    display: grid !important;
    flex: 0 0 44px;
    width: 44px !important;
    height: 44px !important;
    margin: 0 !important;
    place-items: center;
  }
}