:root {
  --primary-color: #0A1931;
  --secondary-color: #E0B700;
  --text-light: #FFFFFF;
  --text-dark: #0A1931;
  --accent-red: #DC3545;
  --header-offset: 110px; /* Desktop: header-top (60px) + main-nav (50px) */
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--text-dark);
  padding-top: var(--header-offset); /* Ensure content is not covered by fixed header */
}

/* Site Header - Fixed position, always visible */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  min-height: 110px; /* Combined height of header-top and main-nav */
  display: flex;
  flex-direction: column;
}

.header-top {
  background-color: var(--primary-color); /* Deep blue */
  padding: 10px 0;
  min-height: 60px; /* Fixed height for header-top */
  display: flex;
  align-items: center;
  color: var(--text-light);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--secondary-color); /* Gold */
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block;
  padding: 5px 0;
}

.main-nav {
  background-color: var(--secondary-color); /* Gold */
  padding: 0;
  min-height: 50px; /* Fixed height for main-nav */
  display: flex; /* Desktop default: flex */
  align-items: center;
  justify-content: center;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 20px;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-dark); /* Dark blue */
  text-decoration: none;
  padding: 10px 15px;
  font-weight: bold;
  transition: color 0.3s ease, background-color 0.3s ease;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}

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

.btn {
  padding: 8px 18px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
  border: none;
  cursor: pointer;
}

.btn-login {
  background-color: var(--accent-red); /* Red */
  color: var(--text-light);
  box-shadow: 0 4px 8px rgba(220, 53, 69, 0.3);
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(220, 53, 69, 0.4);
}

.btn-register {
  background-color: var(--secondary-color); /* Gold */
  color: var(--text-dark);
  box-shadow: 0 4px 8px rgba(224, 183, 0, 0.3);
}

.btn-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(224, 183, 0, 0.4);
}

/* Hamburger menu for mobile */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
  margin-right: 15px;
}

.hamburger-menu .bar {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-light);
  border-radius: 2px;
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.hamburger-menu .bar:nth-child(1) { top: 0; }
.hamburger-menu .bar:nth-child(2) { top: 10px; }
.hamburger-menu .bar:nth-child(3) { top: 20px; }

.hamburger-menu.active .bar:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.hamburger-menu.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active .bar:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

.mobile-nav-buttons {
  display: none; /* Hidden on desktop */
  background-color: var(--primary-color);
  padding: 10px 20px;
  justify-content: center;
  gap: 10px;
  z-index: 999;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  min-height: 50px;
}

.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;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

/* Site Footer */
.site-footer {
  background-color: var(--primary-color); /* Deep blue */
  color: var(--text-light);
  padding: 40px 20px 20px;
  font-size: 14px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

.footer-col p {
  line-height: 1.6;
  margin-bottom: 10px;
}

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

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

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

.footer-nav a:hover {
  color: var(--secondary-color); /* Gold */
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
}

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

  .site-header {
    min-height: auto;
  }

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

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

  .hamburger-menu {
    display: block;
  }

  .logo {
    flex: 1;
    text-align: center;
    margin-left: -30px; /* Counteract hamburger menu space to center logo */
    font-size: 24px;
  }

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

  .main-nav {
    display: none; /* Hidden by default on mobile */
    position: fixed;
    top: var(--header-offset); /* Start below the fixed header + mobile buttons */
    left: 0;
    width: 280px;
    height: calc(100vh - var(--header-offset)); /* Full height below header */
    flex-direction: column;
    align-items: flex-start;
    background-color: var(--primary-color); /* Dark background for mobile menu */
    transform: translateX(-100%); /* Off-screen by default */
    transition: transform 0.3s ease-in-out;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.3);
    z-index: 999;
    overflow-y: auto;
    padding: 20px 0;
  }

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

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 0;
    width: 100%;
    max-width: none; /* Ensure container takes full width */
  }

  .nav-link {
    width: 100%;
    padding: 12px 20px;
    color: var(--text-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .nav-link:hover, .nav-link.active {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 0;
  }

  .mobile-nav-buttons {
    display: flex; /* Always visible on mobile, below header-top */
    position: sticky; /* Or relative, to flow below header-top */
    top: 60px; /* Position below header-top */
    width: 100%;
  }

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

  .footer-col {
    min-width: unset;
    width: 100%;
  }

  .footer-nav {
    padding-left: 0;
  }

  .footer-nav li {
    display: inline-block;
    margin: 0 10px 8px 0;
  }

  .footer-bottom {
    padding-top: 15px;
  }

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

  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;
  }
}