:root {
  --header-offset: 122px; /* Desktop: 68px (header-top) + 52px (main-nav) + 2px buffer */
  --color-primary: #11A84E;
  --color-accent: #22C768;
  --color-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --color-card-bg: #11271B;
  --color-background: #08160F;
  --color-text-main: #F2FFF6;
  --color-text-secondary: #A7D9B8;
  --color-border: #2E7A4E;
  --color-glow: #57E38D;
  --color-gold: #F2C14E;
  --color-divider: #1E3A2A;
  --color-deep-green: #0A4B2C;
}

body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding-top: var(--header-offset); /* Fixed header offset */
  background-color: var(--color-background);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden; /* For mobile overflow protection */
}

body.no-scroll {
  overflow: hidden;
}

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

a:hover {
  color: var(--color-accent);
}

/* Site Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  background-color: transparent; /* Individual sections will have solid backgrounds */
  box-sizing: border-box;
}

/* Header Top Section */
.header-top {
  box-sizing: border-box;
  min-height: 68px;
  height: 68px; /* Fixed height for desktop */
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-deep-green); /* Darker green */
  width: 100%;
  color: var(--color-text-main);
}

.header-container {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px; /* Padding for logo and buttons */
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--color-gold); /* Gold color for logo */
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block; /* Ensure it's visible */
}

/* Desktop Navigation Buttons */
.desktop-nav-buttons {
  display: flex; /* Visible on desktop */
  gap: 12px;
  align-items: center;
}

.btn {
  padding: 10px 20px;
  border-radius: 25px;
  font-size: 15px;
  font-weight: bold;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none; /* Remove underline for buttons */
  color: var(--color-text-main); /* Text color for buttons */
  background: var(--color-button-gradient); /* Green gradient */
  border: none;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

/* Mobile Navigation Buttons (hidden by default on desktop) */
.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden on desktop */
  min-height: 48px; /* Fixed height for mobile */
  background-color: var(--color-card-bg); /* Contrasting background */
  width: 100%;
  align-items: center;
  justify-content: center;
  padding: 0 15px; /* Padding for mobile buttons */
  gap: 10px;
}

/* Main Navigation */
.main-nav {
  box-sizing: border-box;
  min-height: 52px;
  height: 52px; /* Fixed height for desktop */
  display: flex; /* Visible on desktop */
  align-items: center;
  overflow: hidden;
  background-color: var(--color-primary); /* Main green color */
  width: 100%;
}

.nav-container {
  box-sizing: border-box;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 0 20px;
  flex-wrap: nowrap; /* Prevent wrapping on desktop */
}

.nav-link {
  color: var(--color-text-main);
  padding: 10px 15px;
  font-size: 16px;
  font-weight: bold;
  white-space: nowrap;
  transition: color 0.3s ease, background-color 0.3s ease;
  text-decoration: none;
}

.nav-link:hover, .nav-link.active {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-gold); /* Gold on hover */
  border-radius: 5px;
}

/* Hamburger Menu (hidden on desktop) */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  width: 30px;
  height: 24px;
  position: relative;
  cursor: pointer;
  z-index: 1001; /* Above header */
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--color-text-main);
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.hamburger-menu span:nth-child(1) { top: 0; }
.hamburger-menu span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.hamburger-menu span:nth-child(3) { bottom: 0; }

.hamburger-menu.active span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.hamburger-menu.active span:nth-child(2) { opacity: 0; }
.hamburger-menu.active span:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* Mobile Navigation Overlay */
.mobile-nav-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: 999; /* Below menu, above content */
}

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

/* Footer styles */
.site-footer {
  background-color: var(--color-card-bg); /* Dark background for footer */
  padding: 40px 20px 20px;
  color: var(--color-text-secondary);
  font-size: 14px;
  box-sizing: border-box;
}

.site-footer h3 {
  color: var(--color-text-main);
  font-size: 18px;
  margin-bottom: 20px;
  position: relative;
}

.site-footer h3::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background-color: var(--color-primary);
  margin-top: 8px;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto 30px;
}

.footer-col {
  margin-bottom: 20px;
}

.footer-logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  margin-bottom: 15px;
  word-wrap: break-word; /* Ensure description wraps */
  overflow-wrap: break-word;
}

.footer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li {
  margin-bottom: 10px;
}

.footer-nav a {
  color: var(--color-text-secondary);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid var(--color-divider);
  padding-top: 20px;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-bottom p {
  margin: 0;
  color: var(--color-text-secondary);
}

/* Dynamic slot anchor styles (must be visible) */
.footer-slot-anchor-inner {
  min-height: 1px; /* Ensure visibility for system injection */
}

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

  body {
    padding-top: var(--header-offset);
    overflow-x: hidden; /* Prevent horizontal scrolling */
  }

  /* Mobile Overflow Protection - MUST BE INCLUDED */
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }

  /* Header Top Mobile */
  .header-top {
    min-height: 60px;
    height: 60px; /* Fixed height for mobile */
  }

  .header-container {
    padding: 0 15px; /* Smaller padding for mobile */
    max-width: none; /* No max-width on mobile */
    justify-content: space-between; /* To keep hamburger left, logo centered */
    position: relative; /* For logo centering */
  }

  .hamburger-menu {
    display: block; /* Show hamburger on mobile */
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
  }
  
  /* Mobile Logo Centering (Text Logo) */
  .logo {
    flex: 1; /* Take available space */
    text-align: center; /* Center text logo */
    font-size: 24px;
    position: absolute; /* Absolute positioning for better centering */
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 100px); /* Account for hamburger menu and potential right-side elements */
  }

  /* Mobile Navigation Buttons */
  .desktop-nav-buttons {
    display: none !important; /* Hide desktop buttons */
  }

  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons */
    min-height: 48px;
    align-items: center;
    width: 100%;
    max-width: 100%; /* Ensure it doesn't exceed screen width */
    box-sizing: border-box;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden; /* Prevent overflow of buttons */
    gap: 10px;
    flex-wrap: nowrap; /* Prevent buttons from wrapping */
    background-color: var(--color-card-bg); /* Match footer background for consistency */
  }

  .mobile-nav-buttons .btn {
    flex: 1;
    min-width: 0;
    max-width: calc(50% - 5px); /* Half width minus gap */
    box-sizing: border-box;
    padding: 8px 12px; /* Smaller padding */
    font-size: 13px; /* Smaller font size */
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  /* Main Navigation Mobile */
  .main-nav {
    display: none; /* Hidden by default, shown with JS */
    flex-direction: column;
    position: fixed;
    top: var(--header-offset); /* Below fixed header and mobile buttons */
    left: 0;
    width: 80%; /* Menu width */
    max-width: 300px;
    height: calc(100% - var(--header-offset)); /* Fill remaining height */
    background-color: var(--color-card-bg); /* Dark background for menu */
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    transform: translateX(-100%); /* Slide out from left */
    transition: transform 0.3s ease;
    z-index: 1001; /* Above overlay */
    overflow-y: auto; /* Scroll if content is long */
  }

  .main-nav.active {
    display: flex; /* Show menu when active */
    transform: translateX(0); /* Slide in */
  }

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
    max-width: none; /* No max-width on mobile */
    height: auto; /* Adjust height based on content */
  }

  .nav-link {
    width: 100%;
    padding: 12px 15px;
    border-bottom: 1px solid var(--color-divider);
    font-size: 16px;
    text-align: left;
    color: var(--color-text-main);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  /* Footer Mobile */
  .footer-top-grid {
    grid-template-columns: 1fr; /* Single column layout */
    gap: 20px;
  }

  .footer-col {
    text-align: center;
  }
  .footer-col h3::after {
    margin: 8px auto 0; /* Center underline */
  }
}
/* 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;
  }
}
/* 内容保护（系统追加，请勿删除） */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
input, textarea, select, [contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}