:root {
  --header-offset: 100px; /* Desktop: header-top (60px) + main-nav (40px) */
}
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* Mobile: header-top (60px) + mobile-nav-buttons (50px) */
  }
}

body {
  margin: 0;
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for a white background */
  background-color: #FFFFFF; /* Page background as specified */
  padding-top: var(--header-offset);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* General reset for links and buttons */
a {
  text-decoration: none;
  color: inherit;
}

/* Site Header - Fixed & Global Styles */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  background-color: #000000; /* Primary color for the entire header container */
  display: flex;
  flex-direction: column; /* Stacks header-top and main-nav */
}

/* Header Top Section - Logo & Desktop Buttons */
.header-top {
  background-color: #000000; /* Black for header top */
  width: 100%;
  padding: 15px 0; /* Ensures 60px height with 30px content */
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: #FFFFFF;
  text-transform: uppercase;
  text-decoration: none;
  display: block;
}

.desktop-nav-buttons {
  display: flex;
  gap: 10px;
}

.btn {
  padding: 10px 20px;
  border-radius: 5px;
  font-weight: bold;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-login {
  background-color: #FCBC45;
  color: #000000;
}

.btn-login:hover {
  background-color: #e0a73d;
}

.btn-register {
  background-color: #FFFFFF;
  color: #000000;
  border: 1px solid #FCBC45;
}

.btn-register:hover {
  background-color: #f0f0f0;
}

/* Main Navigation Section - Desktop Menu */
.main-nav {
  background-color: #1a1a1a; /* Dark grey for main navigation, contrasting with header-top */
  width: 100%;
  display: flex; /* Desktop default: flex to show */
  padding: 10px 0; /* Ensures 40px height with 20px content */
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 20px;
  flex-wrap: wrap;
}

.nav-link {
  color: #FFFFFF;
  padding: 5px 15px;
  font-size: 16px;
  transition: color 0.3s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: #FCBC45;
}

/* Hamburger Menu - Hidden on Desktop */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1002;
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background: #FFFFFF;
  border-radius: 3px;
  transition: all 0.3s ease;
}

.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 Navigation Buttons - Hidden on Desktop */
.mobile-nav-buttons {
  display: none; /* Hidden on desktop */
  background-color: #000000; /* Same as header-top for consistency */
  padding: 10px 20px; /* Ensures 50px height with 30px content */
  justify-content: center;
  gap: 10px;
  width: 100%;
  box-sizing: border-box;
}

/* Mobile Menu Overlay - Hidden on Desktop */
.mobile-menu-overlay {
  display: none; /* Hidden on desktop */
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  transition: opacity 0.3s ease;
  opacity: 0;
}

.mobile-menu-overlay.active {
  display: block;
  opacity: 1;
}

/* Site Footer */
.site-footer {
  background-color: #000000; /* Primary color for footer */
  color: #FFFFFF;
  padding: 40px 20px 20px;
  font-size: 14px;
  text-align: center;
}

.site-footer .footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 30px;
  text-align: left;
}

.site-footer .footer-col {
  flex: 1;
  min-width: 200px;
}

.site-footer .footer-col h3 {
  color: #FCBC45;
  font-size: 18px;
  margin-bottom: 15px;
  text-transform: uppercase;
}

.site-footer .footer-col p,
.site-footer .footer-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer .footer-col ul li a {
  color: #FFFFFF;
  padding: 5px 0;
  display: block;
  transition: color 0.3s ease;
}

.site-footer .footer-col ul li a:hover {
  color: #FCBC45;
}

.site-footer .copyright {
  margin-top: 40px;
  border-top: 1px solid #333333;
  padding-top: 20px;
  font-size: 13px;
  text-align: center;
  color: #aaaaaa;
}

/* Mobile Styles */
@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
  }

  .header-top {
    padding: 10px 0;
  }

  .header-container {
    padding: 0 15px;
    width: 100%;
    max-width: none;
    justify-content: space-between;
  }

  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 24px;
  }

  .desktop-nav-buttons {
    display: none;
  }

  .hamburger-menu {
    display: flex; /* Show hamburger on mobile */
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    position: fixed;
    top: var(--header-offset); /* Position below header content */
    left: 0;
    width: 80%; /* Menu width */
    max-width: 300px;
    height: calc(100vh - var(--header-offset)); /* Full height below header */
    background-color: #1a1a1a; /* Dark grey for mobile menu */
    flex-direction: column;
    transform: translateX(-100%); /* Off-screen by default */
    transition: transform 0.3s ease;
    z-index: 1001;
    overflow-y: auto;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.3);
  }

  .main-nav.active {
    display: flex; /* Show 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;
  }

  .nav-link {
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: left;
  }

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

  .mobile-nav-buttons {
    display: flex; /* Show mobile buttons below header-top */
    position: relative; /* Ensure it's part of the flow for offset calculation */
    z-index: 990; /* Below overlay and main nav */
  }

  .mobile-menu-overlay.active {
    display: block;
    opacity: 1;
  }

  .site-footer .footer-container {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .site-footer .footer-col {
    min-width: unset;
    width: 100%;
  }
  
  .site-footer .footer-col h3 {
    text-align: center;
  }

  .site-footer .footer-col ul li a {
    text-align: center;
  }

  /* Ensure content images are responsive */
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}
/* Payment Methods 图标容器样式 */
.payment-icons {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 5px;
}

.payment-icons img,
.payment-icon {
  max-height: 50px;
  height: auto;
  width: auto;
  display: block;
}

/* Game Providers 图标容器样式 */
.game-providers-icons {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.game-providers-icons img,
.game-provider-icon {
  max-height: 50px;
  height: auto;
  width: auto;
  display: block;
}

/* Social Media 图标容器样式 */
.social-media-icons {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.social-media-icons img,
.social-media-icon {
  max-height: 50px;
  height: auto;
  width: auto;
  display: block;
}
/* 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;
}