:root {
  --header-offset: 122px; /* Desktop: 68px (header-top) + 52px (main-nav) = 120px, +2px safety */
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --card-bg: #11271B;
  --background-color: #08160F;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green: #0A4B2C;
}

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

/* Site Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  background-color: transparent; /* Managed by header-top and main-nav */
}

/* Header Top Area (Desktop) */
.header-top {
  box-sizing: border-box;
  height: 68px; /* Desktop fixed height */
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--deep-green); /* Contrasting background */
  width: 100%;
}

.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(--gold-color); /* Gold for logo */
  text-decoration: none;
  display: flex;
  align-items: center;
  height: 100%;
}
.logo img {
  display: block;
  max-height: 60px; /* Desktop max height */
  height: auto;
  width: auto;
  max-width: 280px;
  object-fit: contain;
}

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

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

/* Main Navigation Area (Desktop) */
.main-nav {
  box-sizing: border-box;
  height: 52px; /* Desktop fixed height */
  display: flex; /* Visible on desktop */
  align-items: center;
  overflow: hidden;
  background-color: var(--primary-color); /* Different background from header-top */
  width: 100%;
  position: static; /* Desktop: normal flow */
  transition: transform 0.3s ease; /* For mobile slide effect */
}

.nav-container {
  box-sizing: border-box;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row; /* Desktop: horizontal */
  justify-content: center;
  align-items: center;
  padding: 0 20px;
  gap: 25px; /* Spacing between nav links */
}

.nav-link {
  color: var(--text-main);
  text-decoration: none;
  font-size: 16px;
  padding: 8px 0;
  white-space: nowrap;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--gold-color);
}

/* Hamburger Menu (Hidden by default on desktop) */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  width: 30px;
  height: 24px;
  position: relative;
  cursor: pointer;
  z-index: 1001; /* Above header */
  margin-right: 15px; /* Spacing from logo */
  flex-shrink: 0;
}

.hamburger-menu span {
  display: block;
  position: absolute;
  height: 3px;
  width: 100%;
  background: var(--text-main);
  border-radius: 5px;
  opacity: 1;
  left: 0;
  transform: rotate(0deg);
  transition: .25s ease-in-out;
}

.hamburger-menu span:nth-child(1) { top: 0px; }
.hamburger-menu span:nth-child(2) { top: 10px; }
.hamburger-menu span:nth-child(3) { top: 20px; }

.hamburger-menu.active span:nth-child(1) { top: 10px; transform: rotate(135deg); }
.hamburger-menu.active span:nth-child(2) { opacity: 0; left: -60px; }
.hamburger-menu.active span:nth-child(3) { top: 10px; transform: rotate(-135deg); }

/* Mobile Menu Overlay (Hidden by default) */
.mobile-menu-overlay {
  display: none; /* Hidden by default */
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 999; /* Below main nav but above content */
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px; /* Desktop padding */
  border-radius: 25px;
  background: var(--button-gradient);
  color: var(--text-main);
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.4);
}

/* Site Footer */
.site-footer {
  background-color: var(--background-color);
  padding: 40px 20px 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto 30px;
  border-bottom: 1px solid var(--divider-color);
  padding-bottom: 30px;
}

.footer-col {
  padding: 0;
}

.footer-logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--gold-color);
  text-decoration: none;
  margin-bottom: 15px;
  display: block;
}

.footer-description {
  margin-top: 10px;
  line-height: 1.6;
  color: var(--text-secondary);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.footer-col h3 {
  color: var(--text-main);
  font-size: 18px;
  margin-bottom: 15px;
  font-weight: bold;
}

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

.footer-nav li {
  margin-bottom: 8px;
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  margin-top: 20px;
  color: var(--text-secondary);
}

.footer-bottom p {
  margin: 0;
  padding: 0;
}

/* Dynamic slot anchors - must be visible */
.footer-slot-anchor-inner {
  min-height: 1px; /* Ensure it's not completely collapsed */
  width: 100%;
}


/* --- Mobile Styles --- */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* Mobile: 60px (header-top) + 48px (mobile-nav-buttons) = 108px, +2px safety */
  }

  /* Header Top Area (Mobile) */
  .header-top {
    height: 60px; /* Mobile fixed height */
  }

  .header-container {
    padding: 0 15px; /* Smaller padding for mobile */
    max-width: none; /* No max-width on mobile */
    position: relative; /* For absolutely positioned logo */
  }

  /* Mobile Logo Centering (Method 2: Absolute positioning for robustness) */
  .logo {
    position: absolute !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    display: flex !important; /* Keep flex for vertical centering of img if needed */
    align-items: center !important;
    justify-content: center !important;
    max-width: calc(100% - 100px); /* Ensure space for hamburger and potential right-side elements */
    height: 100%;
    flex-shrink: 1;
  }
  .logo img {
    max-height: 56px !important; /* Mobile max height */
  }

  /* Hamburger Menu (Visible on mobile) */
  .hamburger-menu {
    display: block; /* Visible on mobile */
    position: relative; /* Ensure it's clickable */
    z-index: 1001; /* Above logo and desktop buttons */
    margin-right: auto; /* Push logo to center */
  }

  /* Desktop Navigation Buttons (Hidden on mobile) */
  .desktop-nav-buttons {
    display: none !important;
  }

  /* Mobile Navigation Buttons (Visible on mobile) */
  .mobile-nav-buttons {
    display: flex !important; /* Visible on mobile */
    height: auto; /* Allow content to dictate height, min-height handles empty */
    min-height: 48px; /* Mobile fixed height */
    padding: 8px 15px; /* Adjusted padding for mobile buttons */
    background-color: var(--card-bg); /* Background color for mobile buttons */
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
  }

  .mobile-nav-buttons .btn {
    flex: 1; /* Distribute space evenly */
    min-width: 0; /* Allow shrinking */
    max-width: calc(50% - 5px); /* Max width for two buttons with 10px gap */
    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 Area (Mobile - Hidden by default, slides in) */
  .main-nav {
    display: none; /* Hidden by default */
    position: fixed; /* Fixed position for slide-out menu */
    top: var(--header-offset); /* Position below fixed header and mobile buttons */
    left: 0;
    width: 280px; /* Width of the mobile menu */
    height: calc(100% - var(--header-offset)); /* Full height below header */
    background-color: var(--card-bg); /* Background for mobile menu */
    flex-direction: column; /* Vertical layout */
    padding: 20px 0;
    transform: translateX(-100%); /* Start off-screen to the left */
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    z-index: 1000; /* Same as header, overlay will be below */
    overflow-y: auto; /* Enable scrolling for long menus */
  }

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

  .nav-container {
    flex-direction: column; /* Vertical menu items */
    align-items: flex-start; /* Align items to the left */
    padding: 0 20px;
    height: auto; /* Adjust height based on content */
    max-width: none; /* No max-width on mobile */
  }

  .nav-link {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--divider-color);
  }
  .nav-link:last-child {
    border-bottom: none;
  }

  /* Mobile Menu Overlay (Visible when menu is active) */
  .mobile-menu-overlay.active {
    display: block;
  }

  /* Footer (Mobile) */
  .footer-top-grid {
    grid-template-columns: 1fr; /* Single column on mobile */
    text-align: center;
  }
  .footer-col h3 {
    margin-top: 20px;
  }
  .footer-col ul {
    margin-bottom: 20px;
  }

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

/* For no-scroll class */
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;
  }
}