:root {
  --primary-color: #FF4500;
  --secondary-color: #1E90FF;
  --text-color-light: #FFFFFF;
  --text-color-dark: #333333;
  --header-top-bg: #0F4C81; /* Darker variant of secondary */
  --main-nav-bg: #1E90FF; /* Secondary color */
  --header-offset: 120px; /* Desktop: header-top (70px) + main-nav (50px) */
}

@media (max-width: 768px) {
  :root {
    --header-offset: 130px; /* Mobile: header-top (70px) + mobile-buttons-area (60px) */
  }
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--text-color-dark);
  line-height: 1.6;
}

body.no-scroll {
  overflow: hidden;
}

.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: var(--header-top-bg); /* Fallback for transparency issues, main-nav will override */
}

.header-top {
  background-color: var(--header-top-bg);
  color: var(--text-color-light);
  padding: 10px 0;
  min-height: 50px; /* Adjusted for content */
  display: flex;
  align-items: center;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 30px;
}

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

.main-nav {
  background-color: var(--main-nav-bg);
  padding: 10px 0;
  min-height: 40px; /* Adjusted for content */
  display: flex; /* Desktop default: flex */
  justify-content: center;
  align-items: center;
}

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

.nav-link {
  color: var(--text-color-light);
  text-decoration: none;
  padding: 10px 15px;
  font-size: 16px;
  white-space: nowrap;
  transition: background-color 0.3s ease;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.desktop-nav-buttons {
  display: flex; /* Desktop default: flex */
  gap: 10px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  font-size: 15px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  letter-spacing: 0.5px;
}

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

.btn-login:hover {
  background-color: #E63900; /* Slightly darker orange-red */
  border-color: #E63900;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

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

.btn-register:hover {
  background-color: #1A7DD9; /* Slightly darker deep sky blue */
  border-color: #1A7DD9;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

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

.site-footer {
  background-color: #222222;
  color: #CCCCCC;
  padding: 40px 20px;
  font-size: 14px;
}

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

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

.footer-col h3 {
  color: var(--text-color-light);
  font-size: 18px;
  margin-bottom: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 10px;
}

.footer-col p {
  margin: 0;
  line-height: 1.8;
}

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

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

.footer-nav-list a {
  color: #CCCCCC;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #AAAAAA;
}

.footer-bottom p {
  margin: 0;
}

@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;
  }

  .header-container {
    padding: 0 15px;
    width: 100%;
    max-width: none;
    justify-content: flex-start; /* Align hamburger left */
  }

  .logo {
    flex: 1; /* Allow logo to take available space for centering */
    text-align: center;
    padding: 5px 0;
  }

  .hamburger-menu {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    order: -1; /* Place it at the beginning */
  }

  .hamburger-icon {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-color-light);
    border-radius: 2px;
    transition: all 0.3s ease-in-out;
  }

  .hamburger-menu.active .hamburger-icon:nth-child(1) {
    transform: translateY(11px) rotate(45deg);
  }

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

  .hamburger-menu.active .hamburger-icon:nth-child(3) {
    transform: translateY(-11px) rotate(-45deg);
  }

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

  .mobile-buttons-area {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 10px 15px;
    background-color: var(--header-top-bg); /* Match header-top background */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    z-index: 990; /* Below main-nav but above content */
  }

  .main-nav {
    display: none; /* Default hidden */
    flex-direction: column; /* Vertical layout */
    position: fixed;
    top: var(--header-offset); /* Below the header top and mobile buttons */
    left: 0;
    width: 100%;
    height: calc(100% - var(--header-offset)); /* Fill remaining height */
    background-color: rgba(30, 144, 255, 0.95); /* Semi-transparent secondary color for menu */
    transform: translateX(-100%); /* Slide out to the left */
    transition: transform 0.3s ease-in-out;
    overflow-y: auto;
    z-index: 999;
    align-items: flex-start;
    padding: 20px 0;
  }

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

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

  .nav-link {
    width: 100%;
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: left;
    font-size: 17px;
  }

  .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: 998;
  }

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

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

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

  .footer-col h3 {
    border-bottom: none;
    padding-bottom: 0;
  }

  .footer-nav-list {
    text-align: center;
  }

  .footer-bottom {
    margin-top: 30px;
  }
}
/* 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;
  }
}