:root {
  --primary-color: #1A237E;
  --secondary-color: #FFD700;
  --text-light: #ffffff;
  --text-dark: #1a237e;
  --shadow-color: rgba(0, 0, 0, 0.2);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: #f4f4f4;
  scroll-behavior: smooth;
}

body.no-scroll {
  overflow: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 4px 8px var(--shadow-color);
  min-height: auto;
  background-color: var(--primary-color); /* Fallback background, actual colors from child elements */
}

.header-top {
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 10px 0;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  min-height: 60px;
}

.logo {
  font-size: 2.2em;
  font-weight: bold;
  color: var(--secondary-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block;
}

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

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: bold;
  text-align: center;
  transition: all 0.3s ease;
  text-decoration: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

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

.btn-login:hover {
  background-color: #e6c200;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
}

.btn-register {
  background-color: #4CAF50;
  color: var(--text-light);
}

.btn-register:hover {
  background-color: #45a049;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
}

.main-nav {
  background-color: var(--secondary-color);
  color: var(--text-dark);
  padding: 10px 0;
  width: 100%;
  display: flex;
  position: static;
  flex-direction: row;
  transition: transform 0.3s ease-out, background-color 0.3s ease;
}

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

.nav-link {
  display: block;
  padding: 10px 15px;
  font-weight: bold;
  color: var(--text-dark);
  transition: color 0.3s ease, background-color 0.3s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 5px;
}

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

.hamburger-menu .bar {
  display: block;
  width: 30px;
  height: 3px;
  background-color: var(--text-light);
  margin: 6px 0;
  transition: all 0.3s ease-in-out;
}

.mobile-buttons-bar {
  display: none;
}

.mobile-buttons-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 0 15px;
}

.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: 999;
  transition: opacity 0.3s ease;
  opacity: 0;
}

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

.site-footer {
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 40px 20px 20px;
  margin-top: 40px;
  font-size: 0.9em;
}

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

.footer-col {
  flex: 1;
  min-width: 200px;
  margin-bottom: 20px;
}

.footer-col h3 {
  color: var(--secondary-color);
  margin-bottom: 15px;
  font-size: 1.2em;
}

.footer-nav {
  list-style: none;
}

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

.footer-nav a {
  color: var(--text-light);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
}

/* Mobile styles */
@media (max-width: 768px) {
  .header-container {
    padding: 0 15px;
    justify-content: space-between;
  }

  .logo {
    flex-grow: 1;
    text-align: center;
    font-size: 1.8em;
    order: 2;
  }

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

  .hamburger-menu {
    display: block;
    order: 1;
    margin-right: auto;
  }

  .hamburger-menu.active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

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

  .hamburger-menu.active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .mobile-buttons-bar {
    display: flex;
    background-color: var(--primary-color);
    padding: 10px 0;
    box-shadow: 0 2px 4px var(--shadow-color);
    width: 100%;
  }

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

  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    display: none;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    transform: translateX(-100%);
    padding-top: 80px;
    box-shadow: 2px 0 5px var(--shadow-color);
    background-color: var(--primary-color);
    color: var(--text-light);
    z-index: 1000;
  }

  .main-nav.active {
    display: flex;
    transform: translateX(0);
  }

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

  .nav-link {
    width: 100%;
    padding: 15px 20px;
    color: var(--text-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

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

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

/* 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;
}