/**
 * main.css - global layout modules
 */

.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}

.scroll-reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .scroll-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

#site-header {
  position: relative;
  z-index: 1000;
  isolation: isolate;
  min-height: var(--header-height);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  min-height: var(--header-height);
  background: rgba(247, 251, 255, 0.76);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(17, 33, 66, 0.08);
  z-index: 1000;
}

#site-header .header-inner.container-custom {
  position: relative;
  min-height: var(--header-height);
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

#site-header .header-brand {
  position: relative;
  z-index: 2;
}

#site-header .header-brand span {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
}

#site-header .header-toolbar {
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  z-index: 70;
  pointer-events: none;
}

#site-header #header-search-toggle,
#site-header #header-search-form {
  display: none !important;
}

#site-header .header-icon-btn,
#site-header .header-lang-toggle,
#site-header .header-search-panel,
#site-header .header-search-input,
#site-header .header-search-submit {
  pointer-events: auto;
}

#site-header .header-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid rgba(17, 33, 66, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-text);
  box-shadow: 0 8px 20px rgba(15, 31, 62, 0.06);
  transition:
    transform 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}

#site-header .header-icon-btn:hover {
  transform: translateY(-1px);
  background: #fff;
  border-color: var(--color-border-strong);
  color: var(--color-primary);
}

#site-header .header-lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.75rem;
  height: 2.5rem;
  padding: 0 1rem;
  border: 1px solid rgba(17, 33, 66, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-text);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

#site-header .header-lang-toggle:hover {
  transform: translateY(-1px);
  background: #fff;
  border-color: var(--color-border-strong);
  color: var(--color-primary);
}

#site-header .header-search-panel {
  position: absolute;
  top: calc(var(--header-height) - 0.2rem);
  right: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: min(26rem, 92vw);
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

#site-header .header-search-panel.header-search-panel--open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

#site-header .header-search-input {
  flex: 1;
  min-width: 0;
  padding: 0.8rem 0.95rem;
  border: 1px solid rgba(17, 33, 66, 0.08);
  border-radius: 0.85rem;
  background: #fff;
}

#site-header .header-search-submit,
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.85rem 1.35rem;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #1e57aa 100%);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 0 14px 30px rgba(18, 58, 122, 0.2);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    filter 0.2s ease;
}

#site-header .header-search-submit:hover,
.btn-primary:hover {
  transform: translateY(-1px);
  filter: saturate(1.05);
  box-shadow: 0 18px 36px rgba(18, 58, 122, 0.26);
}

#site-header nav#nav-menu,
#site-header .header-nav {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0 10rem 0 2rem;
}

#site-header .nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  color: var(--color-text-muted);
  font-size: 0.96rem;
  font-weight: 600;
  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    transform 0.2s ease;
}

#site-header .nav-link:hover {
  color: var(--color-primary);
  background: rgba(18, 58, 122, 0.08);
}

#site-header .nav-link.font-medium.text-primary {
  color: var(--color-primary);
  background: rgba(18, 58, 122, 0.1);
}

#site-header .header-nav-toggle {
  display: none !important;
  position: relative;
  z-index: 1001;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(17, 33, 66, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  pointer-events: auto;
  touch-action: manipulation;
  box-shadow: 0 8px 20px rgba(15, 31, 62, 0.06);
}

.site-modal[hidden] {
  display: none !important;
}

.site-modal {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.site-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 23, 47, 0.55);
  backdrop-filter: blur(8px);
}

.site-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 24rem);
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.site-modal__close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 2.2rem;
  height: 2.2rem;
  border: 0;
  border-radius: 999px;
  background: rgba(18, 58, 122, 0.08);
  color: var(--color-text-muted);
}

.site-modal__close:hover {
  background: rgba(18, 58, 122, 0.12);
  color: var(--color-primary);
}

.site-modal__dialog img {
  width: 180px;
  height: 180px;
  margin: 0 auto 0.75rem;
  object-fit: contain;
}

.site-floatnav {
  position: fixed;
  right: 1rem;
  top: 50%;
  z-index: 10040;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.45rem;
  border: 1px solid rgba(17, 33, 66, 0.08);
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-md);
  transform: translateY(-50%);
  backdrop-filter: blur(14px);
}

.site-floatnav__item {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  width: 3.4rem;
  min-width: 3.4rem;
  min-height: 4.1rem;
  padding: 0.6rem 0.3rem;
  border: 0;
  border-radius: 1rem;
  background: transparent;
  color: var(--color-text-muted);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.site-floatnav__item--info {
  cursor: default;
}

.site-floatnav__item:hover {
  color: var(--color-primary);
  background: rgba(18, 58, 122, 0.08);
  transform: translateX(-1px);
}

.site-floatnav__item i {
  font-size: 1.05rem;
}

.site-floatnav__label {
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.1;
  writing-mode: horizontal-tb;
  white-space: normal;
  text-align: center;
}

.site-floatnav__item--top {
  background: rgba(18, 58, 122, 0.08);
  color: var(--color-primary);
}

.site-floatnav__tooltip {
  position: absolute;
  right: calc(100% + 0.75rem);
  top: 50%;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 9rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(17, 33, 66, 0.08);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
  color: var(--color-heading);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(8px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  text-align: left;
  white-space: nowrap;
}

.site-floatnav__tooltip::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 100%;
  width: 0.7rem;
  height: 0.7rem;
  border-top: 1px solid rgba(17, 33, 66, 0.08);
  border-right: 1px solid rgba(17, 33, 66, 0.08);
  background: rgba(255, 255, 255, 0.98);
  transform: translate(-0.38rem, -50%) rotate(45deg);
}

.site-floatnav__tooltip strong {
  font-size: 0.9rem;
  line-height: 1.2;
}

.site-floatnav__tooltip small {
  color: var(--color-text-muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.site-floatnav__item:hover .site-floatnav__tooltip,
.site-floatnav__item:focus-visible .site-floatnav__tooltip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

img[data-src] {
  min-height: 120px;
  background:
    linear-gradient(135deg, rgba(18, 58, 122, 0.05), rgba(13, 122, 114, 0.08));
}

.carousel-viewport {
  overflow: hidden;
  width: 100%;
}

.carousel-track {
  display: flex;
  gap: 0;
  will-change: transform;
}

.carousel-track .carousel-item {
  flex: 0 0 100%;
  width: 100%;
  min-width: 0;
}

.site-footer {
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(18, 58, 122, 0.18), transparent);
}

@media (max-width: 767px) {
  #site-header .header-inner.container-custom {
    padding-right: 6rem;
  }

  #site-header nav#nav-menu,
  #site-header .header-nav {
    display: none !important;
    position: fixed !important;
    top: calc(var(--header-height) + 0.6rem) !important;
    left: 1rem !important;
    right: 1rem !important;
    padding: 1rem !important;
    border: 1px solid rgba(17, 33, 66, 0.08);
    border-radius: 1.5rem;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start !important;
    gap: 0.4rem;
  }

  #site-header nav#nav-menu.header-nav-open,
  #site-header .header-nav.header-nav-open {
    display: flex !important;
  }

  #site-header .nav-link {
    justify-content: flex-start;
    width: 100%;
    min-height: 3rem;
    padding: 0.8rem 1rem !important;
    border-radius: 1rem;
    background: rgba(18, 58, 122, 0.03);
  }

  #site-header .header-nav-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
  }

  #site-header .header-wechat-desktop {
    display: none;
  }

  #site-header .header-search-panel {
    position: fixed;
    top: calc(var(--header-height) + 0.6rem);
    left: 1rem;
    right: 1rem;
    min-width: auto;
  }

  .site-floatnav {
    right: 0.75rem;
    bottom: 0.9rem;
    top: auto;
    flex-direction: row;
    transform: none;
    overflow-x: auto;
    border-radius: 1.25rem;
  }

  .site-floatnav__item {
    width: 2.8rem;
    min-width: 2.8rem;
    min-height: 3.5rem;
    padding: 0.55rem 0.2rem;
    gap: 0.25rem;
    flex-direction: column;
  }

  .site-floatnav__label {
    writing-mode: horizontal-tb;
    font-size: 0.72rem;
  }

  .site-floatnav__tooltip {
    display: none;
  }
}