/* ============================================================
   NAVBAR（导航栏固定，top-bar 滚动时隐藏）
   ============================================================ */
#site-header {
  background: var(--navy);
}
#top-bar {
  background: var(--navy-dark);
  padding: 6px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  font-family: 'Montserrat', sans-serif;
  position: relative;
  z-index: 999;
}
#top-bar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 4px; }
#top-bar a { color: rgba(255,255,255,0.6); transition: color var(--transition); }
#top-bar a:hover { color: var(--orange); }
#top-bar .top-bar-right { display: flex; gap: 20px; align-items: center; }
@media (max-width: 1023px) {
  #top-bar { display: none; }
}

.navbar-spacer { height: 64px; pointer-events: none; }

body.mobile-nav-open { overflow: hidden; }

#navbar {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  transition: top 0.2s ease, box-shadow var(--transition);
}
#navbar.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.3); }

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar-logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.navbar-logo img { width: 40px; height: 40px; object-fit: contain; border-radius: var(--radius); }
.navbar-logo-text { display: none; }
@media (min-width: 480px) { .navbar-logo-text { display: block; } }
.navbar-logo-text .name { font-family: 'Montserrat', sans-serif; font-weight: 800; color: #fff; font-size: 15px; line-height: 1.2; letter-spacing: 0.03em; }
.navbar-logo-text .sub { color: rgba(255,255,255,0.5); font-size: 10px; font-family: 'Montserrat', sans-serif; letter-spacing: 0.12em; text-transform: uppercase; }

.navbar-nav { display: none; align-items: center; gap: 4px; }
@media (min-width: 1024px) { .navbar-nav { display: flex; } }

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  color: rgba(255,255,255,0.82);
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active { color: #fff; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transition: transform var(--transition);
  border-radius: 1px;
}
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }

/* Mega Dropdown */
.nav-item { position: relative; }
.mega-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  width: 680px;
  background: #fff;
  border-top: 3px solid var(--orange);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
.nav-item:hover .mega-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.mega-dropdown-col .col-title { font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 13px; color: var(--navy); margin-bottom: 2px; }
.mega-dropdown-col .col-en { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 600; color: var(--orange); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 10px; }
.mega-dropdown-col ul li a { display: block; font-size: 12px; color: #64748b; padding: 3px 0; transition: color var(--transition), padding-left var(--transition); }
.mega-dropdown-col ul li a:hover { color: var(--orange); padding-left: 4px; }
.mega-dropdown-footer { grid-column: 1 / -1; border-top: 1px solid var(--border); padding-top: 12px; display: flex; justify-content: space-between; align-items: center; }
.mega-dropdown-footer span { font-size: 12px; color: var(--text-muted); }

.navbar-cta { display: none; align-items: center; gap: 12px; flex-shrink: 0; }
.navbar-cta a { white-space: nowrap; flex-shrink: 0; }
@media (min-width: 1024px) { .navbar-cta { display: flex; } }
@media (min-width: 1024px) and (max-width: 1180px) {
  .navbar-cta { gap: 8px; }
  .navbar-cta a { padding: 8px 10px !important; font-size: 11px !important; }
}

/* Mobile menu button */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: #fff;
}
@media (min-width: 1024px) { .mobile-menu-btn { display: none; } }

/* Mobile nav */
#mobile-nav {
  display: none;
  background: var(--navy-dark);
  border-top: 1px solid rgba(255,255,255,0.08);
}
#mobile-nav.open {
  display: block;
  max-height: calc(100vh - var(--navbar-offset-top, 0px) - 64px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
@media (max-width: 1023px) {
  #navbar { top: 0 !important; }
  #mobile-nav.open {
    max-height: calc(100dvh - 64px);
  }
}
#mobile-nav ul { padding: 12px 0; list-style: none; }
#mobile-nav ul > li a {
  display: block;
  padding: 12px 24px;
  color: rgba(255,255,255,0.82);
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 600;
  transition: color var(--transition), background var(--transition);
}
#mobile-nav ul > li a:hover { color: var(--orange); background: rgba(255,255,255,0.04); }
#mobile-nav .mobile-sub { padding: 4px 0 8px 40px; }
#mobile-nav .mobile-sub a { font-size: 12px; font-weight: 400; color: rgba(255,255,255,0.5); padding: 6px 24px; }
#mobile-nav .mobile-sub a:hover { color: var(--orange); }
#mobile-nav .mobile-cta { padding: 16px 24px; border-top: 1px solid rgba(255,255,255,0.08); }

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }

.footer-brand .logo-wrap { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand .logo-wrap img { width: 44px; height: 44px; object-fit: contain; }
.footer-brand .brand-name { font-family: 'Montserrat', sans-serif; font-weight: 800; color: #fff; font-size: 15px; }
.footer-brand .brand-sub { color: rgba(255,255,255,0.4); font-size: 10px; font-family: 'Montserrat', sans-serif; letter-spacing: 0.1em; }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.55); margin-bottom: 20px; }
.footer-contact-item { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; font-size: 13px; color: rgba(255,255,255,0.6); }
.footer-contact-item svg { flex-shrink: 0; margin-top: 2px; color: var(--orange); }

.footer-col h4 { font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 13px; color: #fff; margin-bottom: 16px; letter-spacing: 0.05em; text-transform: uppercase; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 13px; color: rgba(255,255,255,0.55); transition: color var(--transition), padding-left var(--transition); display: block; }
.footer-col ul li a:hover { color: var(--orange); padding-left: 4px; }

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  text-align: center;
}
@media (min-width: 768px) { .footer-bottom { flex-direction: row; justify-content: space-between; } }
.footer-bottom a { color: rgba(255,255,255,0.35); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--orange); }
.footer-sitemaps {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
}
.footer-sitemaps a + a::before {
  content: '|';
  margin-right: 14px;
  color: rgba(255,255,255,0.18);
  pointer-events: none;
}
.footer-back-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  background: transparent;
  color: rgba(255,255,255,0.7);
  font-size: 12px;
  font-family: 'Montserrat', sans-serif;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.footer-back-top:hover {
  color: #fff;
  border-color: var(--orange);
  background: rgba(255,107,0,0.12);
}

/* ============================================================
   FLOATING CTA
   ============================================================ */
#floating-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
}
#floating-cta.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }

.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.float-btn:hover { transform: scale(1.1); }
.float-btn-main {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255,107,0,0.4);
  animation: pulse-orange 2.5s infinite;
}
.float-btn-top { background: var(--navy); color: #fff; box-shadow: var(--shadow-md); }
.float-btn-wechat {
  background: #07C160;
  color: #fff;
  box-shadow: 0 4px 16px rgba(7, 193, 96, 0.4);
}

@keyframes pulse-orange {
  0%, 100% { box-shadow: 0 4px 16px rgba(255,107,0,0.4); }
  50% { box-shadow: 0 4px 24px rgba(255,107,0,0.7); }
}

.float-tooltip {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--navy);
  color: #fff;
  font-size: 12px;
  font-family: 'Montserrat', sans-serif;
  white-space: nowrap;
  padding: 5px 10px;
  border-radius: var(--radius);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
}
.float-btn:hover .float-tooltip { opacity: 1; }
.float-tooltip::after {
  content: '';
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--navy);
}

/* 微信二维码弹窗 */
.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition), visibility var(--transition);
}
.wechat-modal.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.wechat-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 35, 66, 0.65);
  backdrop-filter: blur(2px);
}
.wechat-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 320px);
  background: #fff;
  border-radius: 8px;
  padding: 28px 24px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px);
  transition: transform var(--transition);
}
.wechat-modal.open .wechat-modal-dialog { transform: translateY(0); }
.wechat-modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: var(--light-bg);
  color: var(--text-muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.wechat-modal-close:hover {
  background: var(--orange-light);
  color: var(--orange);
}
.wechat-modal-dialog h3 {
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 16px;
}
.wechat-modal-dialog img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  margin: 0 auto 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px;
  background: #fff;
}
.wechat-modal-dialog p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}


/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  position: relative;
  padding: 88px 0;
  overflow: hidden;
  background: var(--navy) url('../images/banners/footer_bg.webp') center/cover no-repeat;
}
.cta-banner .bg-img { display: none; }
.cta-banner .bg-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(10,35,66,0.88) 0%, rgba(10,35,66,0.78) 100%); }
.cta-banner .content { position: relative; z-index: 2; text-align: center; }
.cta-banner h2 { font-family: 'Montserrat', sans-serif; font-weight: 900; color: #fff; font-size: clamp(1.8rem, 3.5vw, 3rem); margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.6); max-width: 560px; margin: 0 auto 36px; font-size: 14px; }
.cta-banner .actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }

/* 语言切换 */
.navbar-lang {
  display: none;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 999px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}
.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  padding: 6px 11px;
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.82);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.lang-btn:hover {
  color: #fff;
  background: rgba(255,107,0,0.22);
  border-color: rgba(255,107,0,0.35);
}
.lang-btn.is-active {
  color: #fff;
  background: var(--orange);
  border-color: rgba(255,255,255,0.15);
  box-shadow: 0 2px 10px rgba(255,107,0,0.35);
}
.mobile-lang-switch {
  display: flex;
  gap: 8px;
  padding: 0 20px 16px;
}
.mobile-lang-switch .lang-btn {
  flex: 1;
  justify-content: center;
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
}
@media (min-width: 1024px) {
  .navbar-inner { gap: 8px; }
  .navbar-lang:not(.navbar-lang--mobile) { display: flex; }
}
.navbar-lang--mobile {
  display: flex;
  margin-left: auto;
  margin-right: 6px;
  padding: 3px;
  gap: 2px;
}
.navbar-lang--mobile .lang-btn {
  min-width: 30px;
  padding: 5px 7px;
  font-size: 10px;
}
@media (min-width: 1024px) {
  .navbar-lang--mobile { display: none !important; }
}