/* Shared shell only: no generic page reset, main-content rules or external fonts.
 * Include after the page's own styles. All classes and custom properties use site-.
 */
.site-masthead,
.site-nav,
.site-footer,
.site-home {
  --site-navy: #033e83;
  --site-blue: #005ca2;
  --site-pale: #edf5fa;
  --site-line: #dae4ee;
  --site-font: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
}

.site-masthead,
.site-nav,
.site-footer {
  box-sizing: border-box;
  font-family: var(--site-font);
  font-size: 14px;
  line-height: 1.7;
}

.site-masthead *,
.site-nav *,
.site-footer * {
  box-sizing: border-box;
}

.site-wrap {
  width: min(1240px, calc(100% - 80px));
  margin-inline: auto;
}

.site-masthead {
  margin: 0;
  padding: 0;
  color: #fff;
  background: #054b80 url('./assets/headbg.jpg') center / cover;
  border: 0;
}

.site-masthead-inner {
  min-height: 100px;
  display: flex;
  align-items: center;
  padding-block: 16px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  max-width: 100%;
  color: #fff;
  text-decoration: none;
  touch-action: manipulation;
}

.site-brand:hover {
  color: #fff;
}

.site-university-logo {
  display: block;
  width: 270px;
  height: auto;
  max-width: 100%;
}

.site-brand-divider {
  flex: 0 0 1px;
  height: 46px;
  background: #ffffff55;
}

.site-brand-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-brand-name {
  font-size: 26px;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: 2px;
}

.site-brand-identity {
  color: #e0edf3;
  font-size: 12px;
  letter-spacing: 2px;
}

.site-nav {
  margin: 0;
  padding: 0;
  background: #fff;
  border: 0;
  border-bottom: 1px solid var(--site-line);
}

.site-nav-inner {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.site-nav-link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 8px 10px;
  color: var(--site-navy);
  background: transparent;
  text-decoration: none;
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  touch-action: manipulation;
}

.site-nav-link:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  width: 1px;
  height: 15px;
  background: #c8d9e8;
}

.site-nav-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  bottom: 0;
  width: 42px;
  height: 3px;
  background: var(--site-blue);
}

.site-nav-link:hover,
.site-nav-link:focus-visible {
  color: var(--site-blue);
  background: var(--site-pale);
}

.site-brand:focus-visible,
.site-nav-link:focus-visible,
.site-footer-link:focus-visible,
.site-action:focus-visible {
  outline: 3px solid var(--site-blue, #005ca2);
  outline-offset: 3px;
}

.site-nav-link:focus-visible {
  outline-offset: -3px;
}

.site-footer {
  margin: 0;
  padding: 25px 0;
  color: #fff;
  background: #034276 url('./assets/headbg.jpg') left center / cover;
  border: 0;
}

.site-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px 36px;
}

.site-footer-copy {
  min-width: 0;
}

.site-footer-title {
  margin: 0 0 5px;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
}

.site-footer-note {
  margin: 0;
  color: #e1ecf4;
  font-size: 12px;
}

.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  flex-shrink: 0;
}

.site-footer-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: #e7f0f7;
  text-decoration: none;
  font-size: 12px;
  touch-action: manipulation;
}

.site-footer-link:hover,
.site-footer-link:focus-visible {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Optional class for subpage actions; does not restyle existing page controls. */
.site-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 18px;
  border: 1px solid var(--site-blue, #005ca2);
  border-radius: 8px;
  background: var(--site-blue, #005ca2);
  color: #fff;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
}

.site-action:hover {
  border-color: var(--site-navy, #033e83);
  background: var(--site-navy, #033e83);
  color: #fff;
}

/* Keep the approved demo intact; only the formal homepage opts into blue focus. */
.site-home :where(a, button, input):focus-visible {
  outline-color: var(--site-blue);
}

@media (max-width: 1100px) {
  .site-wrap {
    width: calc(100% - 48px);
  }

  .site-footer-inner {
    flex-wrap: wrap;
  }
}

@media (max-width: 600px) {
  .site-wrap {
    width: calc(100% - 36px);
  }

  .site-masthead-inner {
    min-height: 100px;
  }

  .site-brand {
    width: 100%;
    gap: 12px;
  }

  .site-university-logo {
    width: 49%;
    max-width: 218px;
  }

  .site-brand-divider {
    height: 39px;
  }

  .site-brand-name {
    font-size: clamp(17px, 4.4vw, 22px);
    letter-spacing: 1px;
  }

  .site-brand-identity {
    font-size: 10px;
    letter-spacing: 1px;
  }

  .site-nav-inner {
    width: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-nav-link {
    min-height: 47px;
    padding-inline: 4px;
    font-size: 14px;
    font-weight: 500;
  }

  .site-nav-link:nth-child(3)::after {
    display: none;
  }

  .site-nav-link:nth-child(-n+3) {
    border-bottom: 1px solid var(--site-pale);
  }

  .site-nav-link[aria-current="page"]::before {
    width: 32px;
    height: 2px;
  }

  .site-footer {
    padding-block: 22px;
  }

  .site-footer-inner {
    display: block;
  }

  .site-footer-title {
    font-size: 13px;
  }

  .site-footer-note {
    font-size: 11px;
  }

  .site-footer-links {
    margin-top: 10px;
    gap: 4px 18px;
  }
}