:root {
  --primary-color: #26A9E0; /* Main light blue */
  --secondary-color: #FFFFFF; /* White */
  --dark-blue: #1A8EC7; /* Darker blue for header-top */
  --orange-btn: #EA7C07; /* Orange for login button */
  --dark-grey: #333333; /* Dark grey for footer */
  --text-dark: #000000; /* Black text for contrast */
  --text-light: #FFFFFF; /* White text for contrast */

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

.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  min-height: var(--header-offset); /* Ensure header has minimum height */
  box-sizing: border-box;
  overflow-x: hidden; /* Prevent horizontal scroll for header */
}

.header-top {
  background-color: var(--dark-blue);
  padding: 15px 0; /* Vertical padding for desktop header-top */
  display: flex; /* For centering hamburger/logo/buttons on mobile */
  align-items: center;
  position: relative;
}

.header-container, .nav-container, .footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px; /* Desktop horizontal padding */
  display: flex;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
}

.header-container {
  justify-content: space-between;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--text-light);
  text-decoration: none;
  white-space: nowrap;
  padding: 0; /* Reset default padding */
}

.main-nav {
  background-color: var(--primary-color);
  padding: 10px 0; /* Vertical padding for desktop main-nav */
  display: flex; /* Desktop default: visible, horizontal */
  flex-direction: row;
  justify-content: center;
  width: 100%;
  box-sizing: border-box;
}

.main-nav .nav-container {
  justify-content: center; /* Center nav links on desktop */
  gap: 25px; /* Spacing between nav links */
  flex-wrap: wrap; /* Allow wrapping if too many links */
}

.nav-link {
  color: var(--text-dark); /* Black text on light blue */
  text-decoration: none;
  font-size: 16px;
  padding: 5px 0;
  white-space: nowrap; /* Prevent nav links from wrapping on desktop */
}

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

.desktop-nav-buttons {
  display: flex;
  gap: 10px;
  margin-left: auto; /* Push buttons to the right */
}

.btn {
  padding: 10px 15px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  font-size: 15px;
  white-space: nowrap;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-sizing: border-box;
  border: none;
}

.btn-primary {
  background-color: var(--primary-color); /* Main light blue */
  color: var(--text-dark); /* Black text */
}

.btn-primary:hover {
  background-color: var(--dark-blue);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--orange-btn); /* Orange for login */
  color: var(--text-dark); /* Black text */
}

.btn-secondary:hover {
  background-color: #C76B06; /* Darker orange */
  transform: translateY(-2px);
}

/* Hamburger menu (desktop hidden) */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  cursor: pointer;
  z-index: 1001;
  position: relative;
  padding: 5px;
}

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

/* Mobile nav buttons (desktop hidden) */
.mobile-nav-buttons {
  display: none; /* Hidden on desktop */
  background-color: var(--dark-blue); /* Same as header-top */
  padding: 10px 15px; /* Mobile horizontal padding */
  justify-content: center;
  gap: 10px;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden; /* Prevent overflow */
  flex-wrap: nowrap; /* Prevent buttons from wrapping */
}

/* Mobile menu overlay (desktop hidden) */
.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;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Footer styles */
.site-footer {
  background-color: var(--dark-grey);
  color: var(--text-light);
  padding: 40px 0 20px;
  font-size: 14px;
}

.footer-container {
  align-items: flex-start;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 0 20px;
}

.footer-col {
  flex: 1;
  min-width: 250px;
  margin-bottom: 20px;
}

.footer-col h3 {
  color: var(--primary-color);
  font-size: 18px;
  margin-bottom: 15px;
}

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

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

.footer-col ul li a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-about p, .footer-contact p {
  line-height: 1.6;
}

.footer-bottom {
  text-align: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}


/* Mobile Styles */
@media (max-width: 768px) {
  .header-container {
    padding: 0 15px; /* Smaller horizontal padding for mobile */
    justify-content: space-between; /* Hamburger left, logo center, space right */
    position: relative; /* For absolute positioning of logo if needed */
  }

  .header-top {
    padding: 15px 0; /* Keep vertical padding */
  }

  .hamburger-menu {
    display: flex; /* Show hamburger on mobile */
    order: 1; /* Position hamburger first */
  }

  .logo {
    order: 2; /* Position logo second */
    flex: 1; /* Allow logo to take available space for centering */
    text-align: center; /* Center text logo */
    font-size: 24px; /* Smaller font size for mobile logo */
    position: absolute; /* Force absolute positioning for text logo to center */
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 100px); /* Ensure logo doesn't overlap hamburger/right space */
  }

  /* Empty div to balance hamburger menu on the right */
  .header-container::after {
    content: '';
    display: block;
    width: 40px; /* Match hamburger menu width */
    order: 3; /* Position after logo */
  }

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

  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons on mobile */
    padding: 10px 15px; /* Mobile horizontal padding */
    gap: 10px;
    flex-wrap: nowrap; /* Ensure buttons stay in one line */
  }

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

  .main-nav {
    display: none; /* Hidden by default on mobile */
    position: fixed;
    top: var(--header-offset); /* Start below the fixed header */
    left: 0;
    width: 70%; /* Sidebar width */
    max-width: 300px;
    height: calc(100vh - var(--header-offset)); /* Full height below header */
    background-color: var(--dark-grey); /* Dark background for mobile menu */
    flex-direction: column;
    padding: 20px 0;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.2);
    transform: translateX(-100%); /* Slide out of view initially */
    transition: transform 0.3s ease;
    overflow-y: auto; /* Enable scrolling for long menus */
    box-sizing: border-box;
  }

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

  .main-nav .nav-container {
    flex-direction: column;
    padding: 0 15px; /* Mobile horizontal padding */
    align-items: flex-start;
    gap: 15px; /* Spacing between mobile nav links */
    max-width: none; /* No max-width for mobile container */
  }

  .nav-link {
    color: var(--text-light); /* White text on dark background */
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    white-space: normal; /* Allow wrapping for long links */
  }
  .nav-link:last-child {
      border-bottom: none;
  }

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

  /* 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);
  }

  .footer-container {
    flex-direction: column;
    padding: 0 15px;
  }

  .footer-col {
    min-width: unset; /* Reset min-width for mobile */
    width: 100%;
  }

  /* Mobile content 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;
  }
}

/* Ensure body scroll is blocked when menu is open */
body.no-scroll {
  overflow: 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;
  }
}