:root {
  --primary-color: #F2C14E;
  --secondary-color: #FFD36B;
  --button-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  --card-bg: #111111;
  --body-bg: #0A0A0A;
  --text-main: #FFF6D6;
  --border-color: #3A2A12;
  --glow-color: #FFD36B;
  --header-offset: 122px; /* Desktop: 68px (top-bar) + 52px (main-nav) + 2px buffer */
}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding-top: var(--header-offset); /* Fixed header offset */
  background-color: var(--body-bg);
  color: var(--text-main);
  overflow-x: hidden; /* Prevent horizontal scroll on desktop too */
}

a {
  text-decoration: none;
  color: var(--text-main);
}

/* Header styles (Desktop-first) */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--card-bg);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); /* Suspended effect */
  z-index: 1000;
  min-height: 60px; /* Ensure content fits */
  display: flex;
  flex-direction: column; /* To allow overlay to be full height */
}

.site-header .header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
}

.site-header .logo {
  font-size: 2.2em;
  font-weight: bold;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  flex-shrink: 0;
  padding: 5px 0;
  display: block;
}

.site-header .main-nav {
  display: flex; /* Desktop: visible, row */
  flex-direction: row;
  justify-content: center;
  align-items: center;
  flex: 1;
  gap: 25px;
  padding: 0 20px;
}

.site-header .main-nav .nav-link {
  font-size: 1.1em;
  font-weight: 600;
  color: var(--text-main);
  padding: 10px 0;
  transition: color 0.3s ease;
}

.site-header .main-nav .nav-link:hover {
  color: var(--primary-color);
}

/* Buttons */
.site-header .btn {
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: bold;
  text-transform: uppercase;
  color: #000;
  background: var(--button-gradient);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  display: inline-block;
  cursor: pointer;
  border: none;
  box-shadow: 0 4px 15px rgba(255, 211, 107, 0.4); /* Glow effect */
}

.site-header .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 211, 107, 0.6);
}

.desktop-nav-buttons {
  display: flex; /* Desktop: visible */
  gap: 10px;
  flex-shrink: 0;
  margin-left: auto;
}

.mobile-nav-buttons {
  display: none !important; /* Desktop: hidden */
}

.hamburger-menu {
  display: none; /* Desktop: hidden */
  background: none;
  border: none;
  font-size: 2em;
  color: var(--text-main);
  cursor: pointer;
  padding: 5px;
  flex-shrink: 0;
  z-index: 1001;
}

.mobile-menu-overlay {
  display: none; /* Hidden by default */
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 998;
}

.mobile-menu-overlay.active {
  display: block;
}

/* Footer styles */
.site-footer {
  background-color: var(--card-bg);
  padding: 40px 0 20px;
  color: var(--text-main);
  border-top: 1px solid var(--border-color);
}

.site-footer .footer-main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 30px;
}

.site-footer .footer-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 30px;
}

.site-footer .footer-col h3 {
  color: var(--primary-color);
  font-size: 1.2em;
  margin-bottom: 15px;
  text-transform: uppercase;
}

.site-footer .footer-logo {
  font-size: 1.8em;
  font-weight: bold;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block;
  margin-bottom: 15px;
}

.site-footer .footer-description {
  font-size: 0.9em;
  line-height: 1.6;
  color: rgba(255, 246, 214, 0.7);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.site-footer .footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer .footer-nav .nav-link {
  color: rgba(255, 246, 214, 0.7);
  font-size: 0.95em;
  transition: color 0.3s ease;
}

.site-footer .footer-nav .nav-link:hover {
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 0.85em;
  color: rgba(255, 246, 214, 0.6);
  margin-top: 30px;
}

/* Anchor slot visibility constraint */
.footer-slot-anchor, .footer-slot-anchor-inner {
  display: block;
  min-height: 1px;
  width: 100%;
}

/* Mobile styles */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* Mobile: 60px (top-bar) + 48px (main-nav) + 2px buffer */
  }

  body {
    padding-top: var(--header-offset);
    overflow-x: hidden;
  }

  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }

  .site-header .header-container {
    width: 100%;
    max-width: none;
    padding: 10px 15px;
    justify-content: space-between;
  }

  .hamburger-menu {
    display: block;
  }

  .site-header .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 0;
  }

  /* Specific rule for img inside logo for mobile centering */
  .site-header .logo img {
    display: block !important;
    max-width: 100%;
    height: auto;
    max-height: 40px;
  }

  .site-header .main-nav {
    display: none; /* Mobile: hidden by default */
    flex-direction: column;
    position: fixed;
    top: var(--header-offset);
    left: 0;
    width: 70%;
    height: calc(100% - var(--header-offset));
    background-color: var(--card-bg);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    transform: translateX(-100%);
    transition: transform 0.3s ease-out;
    padding: 20px;
    gap: 15px;
    z-index: 999;
    overflow-y: auto;
  }

  .site-header .main-nav.active {
    display: flex; /* Mobile: visible when active */
    transform: translateX(0);
  }

  .desktop-nav-buttons {
    display: none !important;
  }

  .mobile-nav-buttons {
    display: flex !important;
    gap: 8px;
    flex-shrink: 0;
  }

  .footer-container {
    grid-template-columns: 1fr;
  }

  .site-footer .footer-main-content {
    padding: 0 15px;
  }
}

/* Body no-scroll for mobile menu */
body.no-scroll {
  overflow: hidden;
}
/* 移动端内容区防溢出（系统追加，请勿删除） */
@media (max-width: 768px) {
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}