:root {
  --header-offset: 120px; /* Desktop: Calculated based on header-top (70px) + main-nav (50px) */
}

@media (max-width: 768px) {
  :root {
    --header-offset: 140px; /* Mobile: Calculated based on header-top (70px) + mobile-nav-buttons (70px) */
  }
}

/* Base styles */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #FFFFFF;
  background-color: #FFFFFF;
  padding-top: var(--header-offset);
  overflow-x: hidden; /* Prevent horizontal scroll on body */
}

/* Header styles */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.header-top {
  background-color: #000000; /* Primary color */
  width: 100%;
  min-height: 70px; /* Ensure minimum height for content */
  display: flex;
  align-items: center;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  width: 100%;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: #FCBC45; /* Login button color for contrast */
  text-decoration: none;
  text-transform: uppercase;
  display: block;
}

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

.btn {
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease;
  display: inline-block;
  text-align: center;
}

.btn-login {
  background-color: #FCBC45; /* Login button color */
  color: #000000;
  border: 1px solid #FCBC45;
}

.btn-login:hover {
  background-color: #e0a53b;
}

.btn-register {
  background-color: #FFFFFF; /* Register button color */
  color: #000000;
  border: 1px solid #FFFFFF;
}

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

.main-nav {
  background-color: #1a1a1a; /* Slightly lighter dark for contrast with header-top */
  width: 100%;
  display: flex; /* Desktop default: visible, horizontal */
  min-height: 50px;
  align-items: center;
}

.main-nav .nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 10px 20px;
  width: 100%;
}

.nav-link {
  color: #FFFFFF;
  text-decoration: none;
  padding: 10px 15px;
  font-weight: normal;
  transition: color 0.3s ease, background-color 0.3s ease;
  white-space: nowrap;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #FCBC45;
}

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

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: #FFFFFF;
  margin-bottom: 5px;
  transition: transform 0.3s ease;
}

.hamburger-menu span:last-child {
  margin-bottom: 0;
}

.hamburger-menu.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.hamburger-menu.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav-buttons {
  display: none; /* Hidden on desktop */
  background-color: #000000; /* Same as header-top for consistency */
  padding: 10px 0;
  min-height: 70px;
  align-items: center;
}

.mobile-nav-buttons .nav-container {
  width: 100%;
  max-width: none; /* Mobile container full width */
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 15px 15px;
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 999;
  backdrop-filter: blur(2px);
}

/* Footer styles */
.site-footer {
  background-color: #000000; /* Primary color */
  color: #FFFFFF;
  padding: 40px 0 20px 0;
  font-size: 14px;
}

.site-footer .footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 0 20px;
}

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

.site-footer .footer-section h3 {
  color: #FCBC45; /* Highlight color for headings */
  font-size: 18px;
  margin-bottom: 15px;
}

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

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

.site-footer .footer-section a {
  color: #FFFFFF;
  text-decoration: none;
  transition: color 0.3s ease;
}

.site-footer .footer-section a:hover {
  color: #FCBC45;
}

.site-footer .copyright {
  text-align: center;
  padding-top: 20px;
  margin-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #CCCCCC;
}

/* Mobile specific styles */
@media (max-width: 768px) {
  .desktop-nav-buttons {
    display: none; /* Hide desktop buttons on mobile */
  }

  .hamburger-menu {
    display: block; /* Show hamburger on mobile */
    order: 0; /* Place hamburger on the far left */
    margin-right: auto; /* Push logo to center */
  }

  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    order: 1; /* Center logo */
    margin: 0; /* Reset margins */
  }

  .logo img {
    display: block !important;
    max-width: 100%;
    height: auto;
    max-height: 40px;
  }

  .header-container {
    padding: 15px;
    width: 100%;
    max-width: none; /* Mobile container full width */
  }

  .main-nav {
    display: none; /* Hide main nav by default on mobile */
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    width: 80%;
    max-width: 300px; /* Limit sidebar width */
    height: 100%;
    background-color: #000000;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.3);
    transform: translateX(-100%); /* Off-screen by default */
    transition: transform 0.3s ease-out;
    overflow-y: auto;
    padding-top: 80px; /* Space for logo/hamburger if it were fixed above */
  }

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

  .main-nav .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
    width: 100%;
    max-width: none; /* Mobile container full width */
  }

  .nav-link {
    width: 100%;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .mobile-nav-buttons {
    display: flex; /* Show mobile buttons */
    width: 100%;
    max-width: none; /* Mobile container full width */
  }

  .mobile-nav-buttons .nav-container {
    max-width: none;
    padding: 15px;
    justify-content: center;
  }

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

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

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

  /* Mobile content overflow prevention */
  .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;
  }
}