:root {
  --primary-color: #0A2342;
  --secondary-color: #F2C94C;
  --header-offset: 100px; /* Desktop: header-top (60px) + main-nav (40px) */
}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding-top: var(--header-offset); /* Ensure content isn't hidden by fixed header */
  color: #333;
  line-height: 1.6;
  overflow-x: hidden; /* Prevent horizontal scroll on desktop */
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #fff; /* Neutral background for the whole header */
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.header-top {
  background-color: var(--primary-color); /* Deep blue for top bar */
  padding: 15px 0;
}

.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: var(--secondary-color);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

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

.primary-btn {
  background-color: var(--secondary-color);
  color: var(--primary-color);
  border: 2px solid var(--secondary-color);
}

.primary-btn:hover {
  background-color: #e0b43b;
  border-color: #e0b43b;
}

.secondary-btn {
  background-color: transparent;
  color: var(--secondary-color);
  border: 2px solid var(--secondary-color);
}

.secondary-btn:hover {
  background-color: var(--secondary-color);
  color: var(--primary-color);
}

.hamburger-menu {
  display: none; /* Hidden on desktop */
  width: 30px;
  height: 20px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  z-index: 1001;
}

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

.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);
}

.main-nav {
  background-color: #1A3B66; /* Slightly lighter blue for navigation, contrasting with header-top */
  padding: 10px 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 0 20px;
  flex-wrap: wrap; /* Allow wrapping on smaller desktop screens */
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
  background-color: var(--secondary-color);
}

.mobile-buttons {
  display: none; /* Hidden on desktop */
  background-color: var(--primary-color);
  padding: 10px 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  z-index: 990; /* Below hamburger menu and main nav */
}

.mobile-buttons-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 0 20px;
}

.mobile-menu-overlay {
  display: none; /* Hidden by default */
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 999;
  transition: opacity 0.3s ease;
  opacity: 0;
}

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

.mobile-spacer {
  display: none; /* Hidden on desktop */
}

.site-footer {
  background-color: var(--primary-color);
  color: #fff;
  padding: 40px 20px 20px;
  margin-top: 50px;
}

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

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

.footer-column h3 {
  color: var(--secondary-color);
  font-size: 20px;
  margin-bottom: 15px;
}

.footer-column p {
  font-size: 14px;
  line-height: 1.8;
}

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

.footer-nav li {
  margin-bottom: 10px;
}

.footer-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 14px;
}

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

.copyright {
  text-align: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

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

  body {
    padding-top: var(--header-offset);
    overflow-x: hidden;
  }

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

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

  .hamburger-menu {
    display: flex;
    order: 1;
  }

  .logo {
    order: 2;
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 24px;
  }

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

  .mobile-spacer {
    display: block;
    order: 3;
    width: 30px; /* Match hamburger width for visual balance */
    height: 1px; /* Minimal height */
  }

  .main-nav {
    display: none; /* Hidden by default */
    flex-direction: column;
    position: fixed;
    top: var(--header-offset); /* Position below fixed header and mobile buttons */
    left: 0;
    width: 280px;
    height: calc(100% - var(--header-offset));
    background-color: var(--primary-color);
    transform: translateX(-100%); /* Off-screen to the left */
    transition: transform 0.3s ease;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    overflow-y: auto;
    padding: 20px 0;
  }

  .main-nav.active {
    display: flex; /* Must set display to show */
    transform: translateX(0); /* Slide into view */
  }

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

  .nav-link {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 5px;
    text-align: left;
  }

  .mobile-buttons {
    display: block;
  }

  .mobile-buttons-container {
    width: 100%;
    max-width: none;
    padding: 0 15px;
  }

  .mobile-buttons .btn {
    flex: 1;
  }

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

  .footer-column {
    min-width: unset;
  }

  .footer-column h3 {
    font-size: 18px;
  }

  .footer-column p,
  .footer-nav a {
    font-size: 13px;
  }

  .copyright {
    font-size: 12px;
  }
}

/* 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;
  }
}