:root {
  --primary-color: #017439;
  --secondary-color: #FFFFFF;
  --register-color: #C30808;
  --login-color: #C30808;
  --background-color: #FFFFFF;
  --register-login-font-color: #FFFF00;

  /* Neon dynamic colors - based on theme but vibrant */
  --neon-primary: #00FF00; /* Vibrant Green */
  --neon-secondary: #00FFFF; /* Vibrant Cyan */
  --neon-accent: #FF00FF; /* Vibrant Magenta */
  --neon-header-top-glow: #FFFF00; /* Neon Yellow for header-top */
  --neon-main-nav-glow: #FF0000; /* Neon Red for main-nav */

  --header-offset: 155px; /* Desktop: Marquee(45) + Header-top(60) + Main-nav(50) = 155px */
}

@media (max-width: 768px) {
  :root {
    --header-offset: 125px; /* Mobile: Marquee(25) + Header-top(50) + Mobile-nav-buttons(50) = 125px */
  }
}

/* Base Styles */
body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding-top: var(--header-offset); /* Apply header offset to body */
  background-color: var(--background-color);
  color: #333;
  overflow-x: hidden;
}

*, *::before, *::after {
  box-sizing: border-box;
}

/* Neon Animation Keyframes */
@keyframes marquee-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.15);
    opacity: 0.9;
  }
}

@keyframes theme-colors {
  0%, 100% {
    border-color: var(--neon-primary);
    box-shadow:
      0 0 10px var(--neon-primary),
      0 0 20px var(--neon-primary);
  }
  33% {
    border-color: var(--neon-secondary);
    box-shadow:
      0 0 10px var(--neon-secondary),
      0 0 20px var(--neon-secondary);
  }
  66% {
    border-color: var(--neon-accent);
    box-shadow:
      0 0 10px var(--neon-accent),
      0 0 20px var(--neon-accent);
  }
}

@keyframes rainbow-border {
  0% { border-color: #ff0000; box-shadow: 0 0 10px #ff0000, 0 0 20px #ff0000; }
  16.6% { border-color: #ff8000; box-shadow: 0 0 10px #ff8000, 0 0 20px #ff8000; }
  33.3% { border-color: #ffff00; box-shadow: 0 0 10px #ffff00, 0 0 20px #ffff00; }
  50% { border-color: #00ff00; box-shadow: 0 0 10px #00ff00, 0 0 20px #00ff00; }
  66.6% { border-color: #0000ff; box-shadow: 0 0 10px #0000ff, 0 0 20px #0000ff; }
  83.3% { border-color: #8000ff; box-shadow: 0 0 10px #8000ff, 0 0 20px #8000ff; }
  100% { border-color: #ff0000; box-shadow: 0 0 10px #ff0000, 0 0 20px #ff0000; }
}

@keyframes text-glow-flow {
  0% {
    text-shadow:
      0 0 5px var(--neon-primary),
      0 0 10px var(--neon-primary),
      0 0 15px var(--neon-primary);
    color: #ffffff;
  }
  50% {
    text-shadow:
      0 0 5px var(--neon-secondary),
      0 0 10px var(--neon-secondary),
      0 0 15px var(--neon-secondary);
    color: #ffffff;
  }
  100% {
    text-shadow:
      0 0 5px var(--neon-accent),
      0 0 10px var(--neon-accent),
      0 0 15px var(--neon-accent);
    color: #ffffff;
  }
}

/* Marquee Section */
.marquee-section {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
  color: #ffffff;
  overflow: hidden;
  border-bottom: 2px solid;
  animation: theme-colors 4s ease-in-out infinite;
  box-shadow:
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    0 0 30px var(--neon-primary),
    inset 0 0 20px rgba(255, 0, 255, 0.1);
  z-index: 1001;
  height: 45px; /* Desktop Marquee Height */
  display: flex;
  align-items: center;
}

.marquee-container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 10px 20px;
}

.marquee-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  z-index: 2;
  position: relative;
}

.marquee-icon-emoji {
  font-size: 24px;
  display: inline-block;
  animation: marquee-pulse 2s ease-in-out infinite, text-glow-flow 3s ease-in-out infinite alternate;
  text-shadow:
    0 0 5px var(--neon-primary),
    0 0 10px var(--neon-primary),
    0 0 15px var(--neon-primary);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.marquee-wrapper {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.marquee-content {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  animation: marquee-scroll 30s linear infinite;
  gap: 30px;
}

.marquee-text {
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  text-decoration: none;
  text-shadow:
    0 0 5px var(--neon-primary),
    0 0 10px var(--neon-primary),
    0 0 15px var(--neon-primary);
  line-height: 1.5;
  display: inline-block;
  vertical-align: middle;
  animation: text-glow-flow 3s ease-in-out infinite alternate;
  cursor: pointer;
  transition: all 0.3s ease;
}

.marquee-text:hover {
  text-shadow:
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    0 0 30px var(--neon-primary),
    0 0 40px var(--neon-primary);
  transform: scale(1.05);
  color: #ffffff;
}

.marquee-separator {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.6);
  margin: 0 15px;
  text-shadow:
    0 0 3px var(--neon-primary),
    0 0 6px var(--neon-primary);
}

@keyframes marquee-scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Header Section */
.site-header {
  position: fixed;
  top: 45px; /* Below marquee */
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
}

.site-header .theme-flow {
  animation: theme-colors 4s ease-in-out infinite;
}

.site-header .rainbow-flow {
  animation: rainbow-border 3s linear infinite;
}

.header-top {
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
  border-bottom: 2px solid var(--neon-header-top-glow);
  box-shadow:
    0 0 10px var(--neon-header-top-glow),
    0 0 20px var(--neon-header-top-glow),
    0 0 30px var(--neon-header-top-glow),
    inset 0 0 20px rgba(255, 255, 0, 0.1);
  width: 100%;
  min-height: 60px; /* Desktop Header-top Height */
  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: 15px 20px;
}

.logo {
  color: var(--secondary-color); /* Regular color, no neon */
  font-size: 24px;
  font-weight: bold;
  text-decoration: none;
  flex-shrink: 0;
  /* No text-shadow, box-shadow, filter for logo */
}

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

.btn {
  position: relative;
  background: linear-gradient(135deg, var(--register-color), var(--login-color)); /* Using specific register/login colors */
  padding: 12px 25px;
  color: var(--register-login-font-color); /* Specific font color */
  text-decoration: none;
  border-radius: 5px;
  border: 2px solid;
  animation: theme-colors 4s ease-in-out infinite;
  text-shadow:
    0 0 5px var(--register-login-font-color),
    0 0 10px var(--register-color);
  transition: all 0.3s ease;
  font-size: 16px;
  font-weight: bold;
  display: inline-block;
  text-align: center;
}

.btn:hover {
  animation-duration: 2s;
  transform: translateY(-2px);
  box-shadow:
    0 0 15px var(--neon-primary),
    0 0 30px var(--neon-primary),
    inset 0 0 15px rgba(255, 255, 255, 0.3);
}

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

.main-nav {
  background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
  border-top: 2px solid var(--neon-main-nav-glow);
  border-bottom: 2px solid var(--neon-main-nav-glow);
  box-shadow:
    0 0 10px var(--neon-main-nav-glow),
    0 0 20px var(--neon-main-nav-glow),
    0 0 30px var(--neon-main-nav-glow),
    inset 0 0 20px rgba(255, 0, 0, 0.1);
  width: 100%;
  min-height: 50px; /* Desktop Main-nav Height */
  display: flex;
  align-items: center;
  position: static; /* Desktop: normal flow */
}

.main-nav .nav-container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 10px 20px;
  gap: 25px;
}

.nav-link {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  padding: 5px 0;
  position: relative;
  transition: color 0.3s ease;
}

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

.hamburger-menu {
  display: none; /* Hidden on desktop */
}

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

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

/* Footer Section */
.site-footer {
  background-color: #1a1a1a;
  color: #ccc;
  padding: 40px 0 20px;
  font-size: 14px;
}

.site-footer a {
  color: #ccc;
  text-decoration: none;
}

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

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

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.footer-col {
  margin-bottom: 20px;
}

.footer-logo {
  color: var(--secondary-color);
  font-size: 22px;
  font-weight: bold;
  text-decoration: none;
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  line-height: 1.6;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.footer-heading {
  color: var(--secondary-color);
  font-size: 18px;
  margin-bottom: 15px;
  text-transform: uppercase;
}

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

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

.payment-icons, .game-providers-icons, .social-media-icons {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.payment-icons img, .game-providers-icons img, .social-media-icons img {
  max-height: 50px;
  height: auto;
  width: auto;
}

.footer-middle {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  margin-bottom: 20px;
}

.game-providers-section, .social-media-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
}

.copyright {
  text-align: center;
  margin-top: 20px;
  color: #888;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  /* Mobile Marquee Height */
  .marquee-section {
    height: 25px;
    padding-top: 0px !important;
    padding-bottom: 0px !important;
  }
  .marquee-container {
    gap: 10px !important;
    padding: 0px 5px;
  }
  .marquee-icon {
    width: 20px !important;
    height: 20px !important;
  }
  .marquee-icon-emoji {
    font-size: 14px !important;
  }
  .marquee-text {
    font-size: 13px !important;
  }
  .marquee-separator {
    font-size: 13px !important;
    margin: 0 5px !important;
  }
  .marquee-content {
    gap: 15px;
    animation: marquee-scroll 25s linear infinite;
  }

  /* Header adjustments for mobile */
  .site-header {
    top: 25px; /* Below mobile marquee */
  }

  .header-top {
    min-height: 50px; /* Mobile Header-top Height */
  }

  .header-container {
    padding: 10px 15px;
    max-width: none; /* No max-width on mobile */
  }

  .hamburger-menu {
    display: flex; /* Show hamburger menu */
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    position: relative;
    z-index: 1001;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    flex-shrink: 0;
  }

  .hamburger-menu span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--neon-primary);
    border-radius: 3px;
    transition: all 0.3s ease-in-out;
    box-shadow:
      0 0 5px var(--neon-primary),
      0 0 10px var(--neon-primary);
  }

  .hamburger-menu.active span:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
  }
  .hamburger-menu.active span:nth-child(2) {
    opacity: 0;
  }
  .hamburger-menu.active span:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
  }

  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 18px;
    max-width: calc(100% - 60px); /* Adjust for hamburger width */
  }

  .desktop-nav-buttons {
    display: none; /* Hide desktop buttons */
  }

  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons */
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 10px 15px;
    overflow: hidden;
    gap: 10px;
    justify-content: center;
    flex-wrap: nowrap;
    min-height: 50px; /* Mobile buttons row height */
    background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
    border-bottom: 2px solid var(--neon-header-top-glow);
    box-shadow:
      0 0 5px var(--neon-header-top-glow),
      0 0 10px var(--neon-header-top-glow);
  }

  .mobile-nav-buttons .btn {
    flex: 1;
    min-width: 0;
    max-width: calc(50% - 5px);
    padding: 8px 12px;
    font-size: 13px;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column;
    position: fixed;
    top: 125px; /* Below mobile marquee (25) + header-top (50) + mobile-buttons (50) */
    left: 0;
    width: 80%;
    height: calc(100% - 125px); /* Adjust height */
    background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
    border-right: 2px solid var(--neon-main-nav-glow);
    box-shadow:
      0 0 10px var(--neon-main-nav-glow),
      0 0 20px var(--neon-main-nav-glow);
    transform: translateX(-100%); /* Off-screen by default */
    transition: transform 0.3s ease-in-out;
    z-index: 1000; /* Above overlay */
    overflow-y: auto;
  }

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

  .main-nav .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
    max-width: none; /* No max-width on mobile */
    gap: 15px;
  }

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

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

  .footer-container {
    grid-template-columns: 1fr;
    padding: 0 15px;
  }

  .game-providers-section, .social-media-section {
    padding: 10px 15px;
  }

  .copyright {
    padding: 0 15px;
  }

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

/* Ensure color contrast */
/* The chosen colors (light text on dark background) inherently provide good contrast. */
/* Example: .marquee-text, .logo, .nav-link, .btn, .footer-logo, .footer-description, .footer-heading, .copyright, .site-footer a */
/* have light colors on dark backgrounds, meeting WCAG AA. */

/* No-scroll class for body when menu is open */
body.no-scroll {
  overflow: hidden;
}
/* 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;
  }
}