:root {
  --header-offset: 122px; /* Desktop with no marquee */
  --primary-color: #F2C14E;
  --secondary-color: #FFD36B;
  --button-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  --card-bg: #111111;
  --background-color: #0A0A0A;
  --text-main-color: #FFF6D6;
  --border-color: #3A2A12;
  --glow-color: #FFD36B;
}

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

/* Header */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--background-color); /* Use general background for header */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); /* Suspended effect */
  z-index: 1000;
  min-height: 60px; /* Ensure content fits */
  display: flex;
  align-items: center;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 30px; /* Adjust padding for desktop */
  display: flex;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  flex-shrink: 0;
  display: block; /* Ensure logo is visible by default */
  line-height: 1; /* Adjust line height for better alignment */
}

.hamburger-menu {
  display: none; /* Hidden by default on desktop */
  background: none;
  border: none;
  font-size: 30px;
  color: var(--text-main-color);
  cursor: pointer;
  padding: 5px;
  line-height: 1;
  flex-shrink: 0;
}

.main-nav {
  flex: 1;
  display: flex;
  flex-direction: row; /* Desktop default: horizontal */
  justify-content: center;
  align-items: center;
  gap: 30px;
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

.desktop-nav-buttons {
  margin-left: auto;
  display: flex; /* Displayed by default on desktop */
  gap: 12px;
  flex-shrink: 0;
}

.mobile-nav-buttons {
  display: none !important; /* Hidden by default on desktop, !important to override */
}

.btn {
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  font-size: 15px;
  text-align: center;
  white-space: nowrap;
  transition: all 0.3s ease;
  color: #111111; /* Dark text for contrast with bright button */
  background: var(--button-gradient);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(255, 211, 107, 0.4); /* Glow effect */
}

.btn:hover {
  filter: brightness(1.1);
  box-shadow: 0 6px 15px rgba(255, 211, 107, 0.6);
}

/* Footer */
.site-footer {
  background-color: var(--background-color);
  padding: 40px 30px 20px;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

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

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

.footer-col {
  padding: 0;
}

.footer-logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-main-color);
  word-wrap: break-word; /* Ensure description wraps */
  overflow-wrap: break-word;
}

.footer-heading {
  font-size: 18px;
  color: var(--primary-color);
  margin-bottom: 20px;
}

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

.footer-link {
  color: var(--text-main-color);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
}

.footer-link:hover {
  color: var(--secondary-color);
}

.site-footer p {
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
  color: var(--text-main-color);
}

.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-main-color);
}

/* Mobile specific styles */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* Mobile with no marquee */
  }

  .site-header {
    min-height: 50px;
  }

  .header-container {
    padding: 10px 15px; /* Smaller padding for mobile */
    width: 100%; /* Occupy full width */
    max-width: none; /* No max-width on mobile */
    position: relative; /* For absolute positioning of logo if needed */
  }

  .hamburger-menu {
    display: block; /* Show hamburger on mobile */
    z-index: 1001; /* Ensure it's above other elements */
  }

  .logo {
    flex: 1 !important; /* Take available space for centering */
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 24px;
    position: static !important; /* Reset any absolute positioning from desktop */
    transform: none !important; /* Reset transform */
    max-width: calc(100% - 100px); /* Adjust max-width to not overlap buttons */
  }

  .logo img { /* If logo is an image */
    display: block !important;
    max-width: 100%;
    height: auto;
    max-height: 40px; /* Adjust as needed */
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column; /* Vertical menu */
    position: fixed; /* Fixed position for slide-out menu */
    top: var(--header-offset); /* Start below header */
    left: 0;
    width: 280px; /* Width of the mobile menu */
    height: calc(100% - var(--header-offset));
    background-color: var(--card-bg); /* Use card background for menu */
    padding: 20px;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    transform: translateX(-100%); /* Slide out from left */
    transition: transform 0.3s ease;
    z-index: 999;
    align-items: flex-start; /* Align menu items to left */
    gap: 15px;
    overflow-y: auto; /* Allow scrolling if menu content is long */
  }

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

  .nav-link {
    font-size: 18px;
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-link:last-child {
    border-bottom: none;
  }
  .nav-link::after {
    display: none; /* Hide underline on mobile menu items */
  }

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

  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons on mobile */
    gap: 8px;
    flex-shrink: 0;
    margin-left: auto; /* Push to right */
  }

  .btn {
    padding: 8px 15px;
    font-size: 14px;
    border-radius: 20px;
  }

  /* Overlay for mobile menu */
  .mobile-menu-overlay {
    display: none;
    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-grid-container {
    grid-template-columns: 1fr; /* Single column on mobile */
    text-align: center;
  }
  .footer-col {
    margin-bottom: 30px;
  }
  .footer-col:last-child {
    margin-bottom: 0;
  }
  .footer-nav {
    align-items: center; /* Center footer nav items */
  }

  /* Mobile 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;
  }
}

/* Prevent body scroll when menu is active */
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;
  }
}