:root {
  --header-offset: 122px; /* 68px (header-top) + 52px (main-nav) */
  --primary-color: #F2C14E;
  --secondary-color: #FFD36B;
  --button-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  --card-bg: #111111;
  --background-color: #0A0A0A;
  --text-main: #FFF6D6;
  --border-color: #3A2A12;
  --glow-color: #FFD36B;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-main);
  background-color: var(--background-color);
  padding-top: var(--header-offset);
  overflow-x: hidden; /* Prevent horizontal scroll for body */
}

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

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Site Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  box-sizing: border-box;
  overflow-x: hidden; /* Prevent header content from overflowing */
}

/* Header Top Area */
.header-top {
  box-sizing: border-box;
  min-height: 68px;
  height: 68px; /* Fixed height for desktop */
  display: flex;
  align-items: center;
  background-color: var(--card-bg); /* Use Card BG for header-top */
  width: 100%;
  overflow: hidden;
}

.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 content inside container */
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color);
  display: block; /* Ensure logo is visible */
  text-transform: uppercase;
  letter-spacing: 1px;
}

.logo img {
  display: block;
  max-height: 60px; /* Max height for desktop logo */
  height: auto;
  width: auto;
  max-width: 280px;
  object-fit: contain;
}

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

/* Mobile Navigation Buttons - Hidden by default on desktop */
.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden by default on desktop */
  min-height: 48px;
  width: 100%;
  background-color: var(--card-bg); /* Same as header-top for consistency */
  border-top: 1px solid var(--border-color); /* Subtle separator */
}

/* Main Navigation Area */
.main-nav {
  box-sizing: border-box;
  min-height: 52px;
  height: 52px; /* Fixed height for desktop */
  display: flex; /* Desktop default is flex (visible) */
  align-items: center;
  background-color: var(--background-color); /* Use Background for main-nav */
  width: 100%;
  overflow: hidden;
  border-top: 1px solid var(--border-color);
}

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

.nav-menu {
  display: flex;
  gap: 25px;
}

.nav-menu li a {
  color: var(--text-main);
  font-weight: bold;
  padding: 10px 0;
  display: block;
  white-space: nowrap;
  transition: color 0.3s ease;
}

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

/* Hamburger Menu - Hidden by default on desktop */
.hamburger-menu {
  display: none; /* Hidden by default on desktop */
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  cursor: pointer;
  padding: 5px;
  z-index: 1001; /* Above logo */
}

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

/* Hamburger menu active state */
.hamburger-menu.active span:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}
.hamburger-menu.active span:nth-child(2) {
  opacity: 0;
}
.hamburger-menu.active span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/* Mobile Header Spacer - Hidden by default on desktop */
.mobile-header-spacer {
  display: none;
}

/* Overlay for mobile menu */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 999;
  display: none; /* Hidden by default */
  transition: opacity 0.3s ease;
  opacity: 0;
}
.overlay.active {
  display: block;
  opacity: 1;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 5px;
  font-weight: bold;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--button-gradient);
  color: #111111; /* Dark text for bright button */
  text-decoration: none; /* Remove underline */
  border: none;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.btn:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 10px var(--glow-color);
}

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

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

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

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

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

.footer-nav li a {
  font-size: 14px;
  color: var(--text-main);
  padding: 5px 0;
  display: block;
  transition: color 0.3s ease;
}

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

.footer-mid-grid {
  max-width: 1200px;
  margin: 20px auto; /* Adjust margin as needed */
  display: grid; /* Use grid for mid slots if needed, otherwise just display block */
  gap: 20px;
}

.footer-bottom {
  text-align: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-main);
}

/* Dynamic slot anchors - ensure they are visible */
.footer-slot-anchor-inner {
  min-height: 1px; /* Ensure visibility for layout */
}

/* Mobile Responsive */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* 60px (header-top) + 48px (mobile-nav-buttons) + 48px (main-nav) = 156px if all are visible. But main-nav slides in, so it's 60+48=108px. Use 110px for safety. */
  }

  /* Body 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;
  }

  .site-header {
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  }

  /* Header Top Area */
  .header-top {
    min-height: 60px !important;
    height: 60px !important; /* Fixed height for mobile */
    padding: 0 15px; /* Smaller padding for mobile */
  }

  .header-container {
    width: 100%;
    max-width: none; /* No max-width on mobile */
    padding: 0; /* Container itself has no padding, inner elements use flex for spacing */
    justify-content: space-between; /* Ensures hamburger is left, logo is center, spacer is right */
  }

  /* Hamburger Menu - Visible on mobile */
  .hamburger-menu {
    display: flex;
    position: relative; /* To ensure z-index works */
    z-index: 1002; /* Above logo and buttons */
  }

  /* Logo Centering for mobile */
  .logo {
    flex: 1 !important; /* Take available space */
    display: flex !important;
    justify-content: center !important; /* Center content horizontally */
    align-items: center !important; /* Center content vertically */
    position: static; /* Reset from potential desktop absolute positioning */
    transform: none; /* Reset transform */
    max-width: calc(100% - 100px); /* Adjust max-width to leave space for hamburger (30px) and spacer (40px) + padding */
    z-index: 1001; /* Below hamburger, above header-top background */
  }
  .logo img {
    max-height: 56px !important; /* Max height for mobile logo */
  }

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

  /* Mobile Header Spacer - Visible on mobile to balance hamburger */
  .mobile-header-spacer {
    display: block;
    width: 40px; /* Approximate width of hamburger menu */
    height: 1px; /* Minimal height */
  }

  /* Mobile Navigation Buttons - Visible on mobile, below header-top */
  .mobile-nav-buttons {
    display: flex !important; /* Visible on mobile */
    min-height: 48px;
    align-items: center;
    justify-content: center; /* Center buttons horizontally */
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px; /* Padding for mobile buttons container */
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap; /* Ensure buttons stay in one row */
    background-color: var(--card-bg); /* Match header-top background */
    border-top: 1px solid var(--border-color); /* Subtle separator */
  }

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

  /* Main Navigation Area - Hidden by default on mobile */
  .main-nav {
    display: none; /* Hidden by default on mobile */
    position: fixed; /* Fixed position for mobile menu */
    top: var(--header-offset); /* Position below fixed header and mobile buttons */
    left: 0;
    width: 75%; /* Slide-in menu width */
    height: calc(100% - var(--header-offset)); /* Full height below header */
    flex-direction: column; /* Vertical menu */
    justify-content: flex-start;
    align-items: flex-start;
    padding: 20px 0;
    background-color: var(--background-color); /* Same as desktop main-nav */
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.3);
    transform: translateX(-100%); /* Slide out to the left */
    transition: transform 0.3s ease;
    z-index: 1000; /* Below overlay, above body */
    overflow-y: auto; /* Enable scrolling for long menus */
    min-height: 48px !important; /* Ensure minimum height */
    height: auto !important; /* Adjust height for content */
    border-top: none; /* No border for mobile slide-in menu */
  }

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

  .nav-container {
    width: 100%;
    max-width: none; /* No max-width on mobile */
    padding: 0 15px; /* Padding for mobile menu items */
  }

  .nav-menu {
    flex-direction: column; /* Vertical menu */
    width: 100%;
    gap: 0; /* Remove gap for vertical menu */
  }

  .nav-menu li a {
    padding: 12px 15px;
    font-size: 16px;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-menu li:last-child a {
    border-bottom: none;
  }

  /* Footer */
  .footer-top-grid {
    grid-template-columns: 1fr; /* Single column on mobile */
    gap: 30px;
  }
  .footer-col {
    text-align: center;
  }
  .footer-col:first-child {
    text-align: center; /* Center logo and description */
  }
  .footer-logo {
    margin-left: auto;
    margin-right: auto;
  }
  .footer-nav {
    display: block; /* Ensure list items stack */
  }
}
/* 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;
}