html { scroll-behavior: smooth; }
body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding-top: var(--header-offset);
  color: var(--text-main);
  background-color: var(--background);
  overflow-x: hidden;
}

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

/* General link styles */
a {
  text-decoration: none;
  color: inherit;
}

/* Site Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  background-color: var(--deep-green); /* Deep Green for overall header background */
}

.header-top {
  box-sizing: border-box;
  height: 68px; /* Desktop fixed height */
  display: flex;
  align-items: center;
  overflow: hidden;
  width: 100%;
  background-color: var(--deep-green); /* Use Deep Green for top bar */
}

.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 */
  text-decoration: none;
  white-space: nowrap;
}

.desktop-nav-buttons {
  display: flex;
  gap: 12px;
  align-items: center;
}

/* Mobile nav buttons (hidden on desktop) */
.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden by default on desktop */
  min-height: 48px; /* Mobile fixed height */
  background-color: var(--card-bg); /* Use Card BG for mobile buttons bar */
  width: 100%;
  overflow: hidden;
}

.btn {
  background: var(--button-gradient);
  color: #000000; /* Changed to black for WCAG AA contrast with green button */
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 25px;
  font-weight: bold;
  white-space: nowrap;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.btn:hover {
  filter: brightness(1.15);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
}

/* Main Navigation */
.main-nav {
  box-sizing: border-box;
  height: 52px; /* Desktop fixed height */
  display: flex; /* Displayed by default on desktop */
  align-items: center;
  overflow: hidden;
  width: 100%;
  background-color: var(--card-bg); /* Use Card BG for main nav bar */
}

.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;
}

.nav-link {
  color: var(--text-main); /* Text Main for nav links */
  text-decoration: none;
  padding: 0 15px;
  font-weight: bold;
  white-space: nowrap;
  transition: color 0.3s ease;
  height: 100%; /* Ensure link takes full height for clickable area */
  display: flex;
  align-items: center;
}

.nav-link:hover {
  color: var(--gold-color); /* Gold on hover */
}

/* Hamburger Menu (hidden on desktop) */
.hamburger-menu {
  display: none; /* Hidden by default on desktop */
  width: 30px;
  height: 24px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  margin-right: 20px; /* Space between hamburger and logo */
}

.hamburger-menu span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s ease-in-out;
}

.hamburger-menu.active span:nth-child(1) {
  transform: translateY(10.5px) rotate(45deg);
}

.hamburger-menu.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
  transform: translateY(-10.5px) rotate(-45deg);
}

/* Overlay for mobile menu */
.overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

/* Site Footer */
.site-footer {
  background-color: var(--background); /* Background color for footer */
  color: var(--text-secondary); /* Secondary text color for footer */
  padding: 40px 20px 20px;
  line-height: 1.6;
}

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

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

.footer-logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--gold-color); /* Gold for footer logo text */
  margin-bottom: 15px;
  display: block;
}

.footer-description {
  font-size: 14px;
  color: var(--text-secondary);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.footer-heading {
  font-size: 18px;
  color: var(--text-main); /* Main text color for headings */
  margin-bottom: 15px;
}

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

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

.footer-nav a {
  color: var(--text-secondary); /* Secondary text color for footer links */
  font-size: 14px;
  transition: color 0.3s ease;
}

.footer-nav a:hover {
  color: var(--gold-color); /* Gold on hover */
}

.footer-slot-anchor-inner {
  min-height: 10px; /* Small height to ensure it's always rendered */
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid var(--divider-color); /* Divider color for border */
  padding-top: 20px;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-secondary);
}

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

  .header-top {
    height: 60px; /* Mobile fixed height */
    background-color: var(--deep-green);
  }

  .header-top .header-container {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 15px;
  }

  .hamburger-menu {
    display: flex; /* Show hamburger menu on mobile */
    margin-right: 0;
    z-index: 2;
  }

  .logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    max-width: calc(100% - 100px); /* Adjust based on hamburger width */
    font-size: 24px;
  }

  .desktop-nav-buttons {
    display: none !important; /* Hide desktop buttons on mobile */
  }

  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons bar */
    min-height: 48px;
    align-items: center;
    justify-content: center; /* Center buttons within the bar */
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap;
    background-color: var(--card-bg);
  }

  .mobile-nav-buttons .btn {
    flex: 1;
    min-width: 0;
    max-width: calc(50% - 5px); /* Max width for two buttons with 10px gap */
    box-sizing: border-box;
    padding: 8px 12px;
    font-size: 13px;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    position: fixed;
    top: var(--header-offset); /* Position below header and mobile buttons */
    left: 0;
    width: 80%; /* Sidebar width */
    max-width: 300px;
    height: calc(100% - var(--header-offset));
    flex-direction: column;
    overflow-y: auto;
    transform: translateX(-100%); /* Slide out of view */
    transition: transform 0.3s ease;
    background-color: var(--card-bg);
    z-index: 1001; /* Above header */
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.2);
  }

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

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
    width: 100%;
    max-width: none; /* No max-width on mobile container */
  }

  .nav-link {
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid var(--divider-color);
    justify-content: flex-start;
  }

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

  .overlay.active {
    display: block;
  }

  .body.no-scroll {
    overflow: hidden;
  }

  .footer-top-grid {
    grid-template-columns: 1fr; /* Single column layout for footer on mobile */
    padding: 0 15px;
  }

  .footer-col {
    margin-bottom: 30px;
  }

  .footer-bottom {
    padding: 0 15px 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;
  }
}
/* 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;
}