:root {
  --primary-color: #F2C14E;
  --accent-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;
  --header-offset: 122px; /* Desktop no marquee: 68px (header-top) + 52px (main-nav) + 2px buffer */
}

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

/* --- Header Styles --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--background-color); /* Black Gold theme, dark header */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); /* Floating effect */
  z-index: 1000;
  min-height: 60px; /* Ensure content adaptation */
  display: flex;
  align-items: center;
}

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

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color); /* Contrasting with dark background */
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 20px; /* Space between logo and nav */
}

.hamburger-menu {
  display: none; /* Hidden on desktop */
  background: none;
  border: none;
  color: var(--text-main-color);
  font-size: 28px;
  cursor: pointer;
  padding: 5px;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

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

.main-nav .nav-link {
  color: var(--text-main-color);
  text-decoration: none;
  font-size: 16px;
  font-weight: bold;
  padding: 5px 0;
  position: relative;
  transition: color 0.3s ease;
}

.main-nav .nav-link:hover,
.main-nav .nav-link.active {
  color: var(--accent-color);
}

.main-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width 0.3s ease;
}

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

.desktop-nav-buttons {
  margin-left: auto; /* Push buttons to the right */
  display: flex; /* Always visible on desktop */
  gap: 10px; /* Space between buttons */
  flex-shrink: 0;
}

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

.btn {
  background: var(--button-gradient);
  color: var(--background-color); /* Dark text for bright button */
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  font-size: 15px;
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(255, 211, 107, 0.4); /* Glow effect */
}

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

.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: 999;
  cursor: pointer;
}

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

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

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 30px;
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* 4 columns on desktop */
  gap: 40px;
}

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

.footer-col h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 40px;
  height: 2px;
  background-color: var(--primary-color);
}

.footer-logo {
  font-size: 24px;
  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: rgba(255, 246, 214, 0.7); /* Slightly lighter text for readability */
  word-wrap: break-word;
  overflow-wrap: break-word;
}

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

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

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

.footer-bottom {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: rgba(255, 246, 214, 0.6);
}

/* --- Mobile Specific Styles --- */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* Mobile no marquee: 60px (header-top) + 48px (main-nav) + 2px buffer */
  }

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

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

  .site-header {
    min-height: 50px; /* Adjust header height for mobile */
  }

  .header-container {
    padding: 10px 15px; /* Mobile padding */
    width: 100%;
    max-width: none; /* Crucial: no max-width on mobile container */
    position: relative;
  }

  .hamburger-menu {
    display: block; /* Visible on mobile */
    order: 1; /* First item */
  }

  .logo {
    order: 2; /* Second item */
    flex: 1; /* Take up available space for centering */
    text-align: center; /* Center the text logo */
    margin-right: 0; /* No margin pushing nav */
    font-size: 24px; /* Adjust logo size */
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column;
    position: fixed;
    top: var(--header-offset); /* Start below the fixed header */
    left: 0;
    width: 280px; /* Drawer width */
    height: calc(100% - var(--header-offset));
    background-color: var(--card-bg); /* Drawer background */
    padding: 20px;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    transform: translateX(-100%); /* Off-screen by default */
    transition: transform 0.3s ease;
    z-index: 1000; /* Above overlay */
    overflow-y: auto; /* Allow scrolling for many items */
    align-items: flex-start; /* Align nav items to the left */
    gap: 15px; /* Adjust gap for vertical items */
  }

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

  .main-nav .nav-link {
    width: 100%; /* Full width for mobile links */
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 246, 214, 0.1); /* Separator */
  }
  
  .main-nav .nav-link::after {
    display: none; /* Hide underline for mobile drawer links */
  }

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

  .mobile-nav-buttons {
    order: 3; /* Third item */
    display: flex !important; /* Visible on mobile */
    gap: 8px; /* Space between mobile buttons */
    flex-shrink: 0;
    margin-left: auto; /* Push to right */
  }

  .hamburger-menu.active {
    /* Optional: transform for X icon */
  }

  .footer-container {
    grid-template-columns: 1fr; /* Single column on mobile */
    gap: 30px;
  }

  .footer-col {
    text-align: center;
  }

  .footer-col h3::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .footer-nav {
    align-items: center; /* Center footer nav links */
  }
}
/* 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;
  }
}