:root {
  --header-offset: 120px; /* Desktop: Calculated header height (header-top: 60px + main-nav: 60px) */
}

@media (max-width: 768px) {
  :root {
    --header-offset: 140px; /* Mobile: Calculated header height (header-top: 70px + mobile-button-area: 70px) */
  }
}

/* Global Styles */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #FFFFFF;
  background-color: #FFFFFF; /* Main page background */
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  background-color: transparent; /* Layers below will define colors */
}

.header-top {
  background-color: #000000; /* Primary color */
  padding: 10px 0;
  min-height: 40px;
}

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

.logo {
  font-size: 24px;
  font-weight: bold;
  color: #FCBC45; /* Contrasting color for logo */
  text-decoration: none;
  display: block;
  padding: 5px 0;
}

.desktop-nav-buttons {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn {
  padding: 8px 15px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease;
  white-space: nowrap;
  cursor: pointer;
}

.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: #e0e0e0;
}

.main-nav {
  background-color: #333333; /* Contrasting dark grey for main nav */
  padding: 10px 0;
  min-height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.main-nav .nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
  gap: 25px;
  padding: 0 20px;
}

.nav-link {
  color: #FFFFFF;
  text-decoration: none;
  font-weight: bold;
  padding: 5px 0;
  transition: color 0.3s ease;
  white-space: nowrap;
}

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

.hamburger-menu {
  display: none; /* Hidden on desktop */
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
}

.hamburger-menu .bar {
  display: block;
  width: 25px;
  height: 3px;
  background-color: #FFFFFF;
  margin: 5px 0;
  transition: 0.4s;
}

.mobile-button-area,
.mobile-menu-overlay {
  display: none; /* Hidden on desktop */
}

/* Footer Styles */
.site-footer {
  background-color: #000000;
  color: #FFFFFF;
  padding: 40px 0 20px;
  font-size: 14px;
  line-height: 1.6;
}

.site-footer .footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 30px;
  padding: 0 20px;
}

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

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

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

.footer-section ul li a {
  color: #FFFFFF;
  text-decoration: none;
  display: block;
  padding: 5px 0;
  transition: color 0.3s ease;
}

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

.copyright {
  background-color: #1a1a1a; /* Slightly lighter black for copyright */
  padding: 15px 0;
  text-align: center;
  margin-top: 30px;
}

.copyright p {
  margin: 0;
  color: #CCCCCC;
}

/* Mobile Styles */
@media (max-width: 768px) {
  .site-header {
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  }

  .header-top {
    padding: 10px 0;
    min-height: 50px;
  }

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

  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 20px;
  }

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

  .hamburger-menu {
    display: block;
    order: -1; /* Move to the left */
    color: #FFFFFF;
  }

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

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

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

  .mobile-button-area {
    display: flex;
    background-color: #000000; /* Same as header-top */
    padding: 10px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 50px;
  }

  .mobile-button-area .header-container {
    width: 100%;
    max-width: none;
    padding: 0 15px;
    justify-content: center;
    gap: 10px;
  }

  .main-nav {
    display: none; /* Hidden by default */
    flex-direction: column;
    position: fixed;
    top: var(--header-offset);
    left: 0;
    width: 70%;
    height: calc(100% - var(--header-offset));
    background-color: #222222; /* Slightly darker for mobile menu */
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.3);
    transform: translateX(-100%); /* Off-screen */
    transition: transform 0.3s ease-out;
    overflow-y: auto;
    align-items: flex-start;
    padding: 20px 0;
  }

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

  .main-nav .nav-container {
    flex-direction: column;
    gap: 15px;
    padding: 0 20px;
    width: 100%;
    max-width: none;
    align-items: flex-start;
  }

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

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

  .mobile-menu-overlay {
    display: none;
    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-out;
    opacity: 0;
  }

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

  .site-footer .footer-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

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

  .footer-section ul {
    padding-left: 0;
  }

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

/* No scroll for body 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;
  }
}