:root {
  --primary-color: #26A9E0; /* Light blue */
  --secondary-color: #FFFFFF; /* White */
  --login-color: #EA7C07; /* Orange for login */
  --background-color: #FFFFFF; /* White background */
  --black-color: #000000; /* Black */

  /* Derived Neon Colors for dynamic effects */
  --neon-primary: hsl(200, 100%, 60%); /* Vibrant blue from primary hue */
  --neon-secondary: hsl(280, 100%, 70%); /* Vibrant purple for contrast */
  --neon-accent: hsl(40, 100%, 70%); /* Vibrant orange for accent */

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

@media (max-width: 768px) {
  :root {
    --header-offset: 145px; /* Mobile: Marquee (35) + Header Top (70) + Mobile Buttons (40) = 145px */
  }
}

/* Base styles */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #f0f0f0;
  background-color: #1a1a2e; /* Dark background for overall page */
  padding-top: var(--header-offset); /* Ensure content is not hidden by fixed header */
  overflow-x: hidden; /* Prevent horizontal scroll on body */
}

body.no-scroll {
  overflow: hidden;
}

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

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

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

h1, h2, h3, h4, h5, h6, p {
  margin-top: 0;
  margin-bottom: 0;
}

/* Keyframe Animations for Neon Effects */
@keyframes neon-flicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
    opacity: 1;
    box-shadow: 
      0 0 10px currentColor,
      0 0 20px currentColor,
      0 0 30px currentColor,
      inset 0 0 15px currentColor;
  }
  20%, 24%, 55% {
    opacity: 0.8;
    box-shadow: 
      0 0 5px currentColor,
      0 0 10px currentColor,
      0 0 15px currentColor,
      inset 0 0 10px currentColor;
  }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 
      0 0 5px currentColor,
      0 0 10px currentColor,
      0 0 15px currentColor;
  }
  50% {
    box-shadow: 
      0 0 15px currentColor,
      0 0 30px currentColor,
      0 0 45px currentColor;
  }
}

@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 hue-spin {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

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

@keyframes theme-colors {
  0%, 100% {
    border-color: var(--neon-primary);
    box-shadow: 
      0 0 10px var(--neon-primary),
      0 0 20px var(--neon-primary),
      inset 0 0 10px hsla(200, 100%, 60%, 0.3);
  }
  33% {
    border-color: var(--neon-secondary);
    box-shadow: 
      0 0 10px var(--neon-secondary),
      0 0 20px var(--neon-secondary),
      inset 0 0 10px hsla(280, 100%, 70%, 0.3);
  }
  66% {
    border-color: var(--neon-accent);
    box-shadow: 
      0 0 10px var(--neon-accent),
      0 0 20px var(--neon-accent),
      inset 0 0 10px hsla(40, 100%, 70%, 0.3);
  }
}

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

/* Marquee Section */
.marquee-section {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
  color: var(--secondary-color);
  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 hsla(200, 100%, 60%, 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: 0 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));
}

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

.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: var(--secondary-color);
  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: var(--secondary-color);
}

.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%); }
}

/* Site Header */
.site-header {
  position: fixed;
  top: 45px; /* Offset by marquee height */
  left: 0;
  width: 100%;
  z-index: 1000;
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
  color: var(--secondary-color);
  display: flex; /* For overall header structure, desktop */
  flex-direction: column; /* For stacking header-top and main-nav */
}

.header-top {
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
  border-bottom: 2px solid;
  animation: theme-colors 4s ease-in-out infinite; /* Dynamic border color */
  box-shadow: 
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    0 0 30px var(--neon-primary),
    inset 0 0 20px hsla(200, 100%, 60%, 0.1);
  width: 100%;
  min-height: 60px; /* Desktop header top height */
  display: flex;
  align-items: center;
}

.header-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--secondary-color); /* Regular color, no neon */
  text-decoration: none;
  display: block; 
  padding: 10px 0;
}

.logo img {
  display: block;
  max-width: 100%;
  height: auto;
  max-height: 40px; /* Desktop logo max height */
}

.hamburger-menu {
  display: none; /* Hidden on desktop */
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  transform: rotate(0deg);
  transition: .5s ease-in-out;
  z-index: 1002; /* Above overlay */
}

.hamburger-menu span {
  display: block;
  position: absolute;
  height: 3px;
  width: 100%;
  background: var(--neon-primary);
  border-radius: 9px;
  opacity: 1;
  left: 0;
  transform: rotate(0deg);
  transition: .25s ease-in-out;
  animation: text-glow-flow 3s ease-in-out infinite alternate; /* Dynamic glow */
}

.hamburger-menu span:nth-child(1) { top: 0px; }
.hamburger-menu span:nth-child(2) { top: 10px; }
.hamburger-menu span:nth-child(3) { top: 20px; }

.hamburger-menu.active span:nth-child(1) { top: 10px; transform: rotate(135deg); }
.hamburger-menu.active span:nth-child(2) { opacity: 0; left: -60px; }
.hamburger-menu.active span:nth-child(3) { top: 10px; transform: rotate(-135deg); }

.desktop-nav-buttons {
  display: flex; /* Always visible on desktop */
  gap: 10px;
  align-items: center;
}

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

.btn {
  position: relative;
  padding: 12px 25px;
  color: var(--secondary-color);
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid; /* For neon border effect */
  animation: theme-colors 4s ease-in-out infinite; /* Dynamic border color */
  text-shadow: 
    0 0 5px var(--secondary-color),
    0 0 10px var(--neon-primary);
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-secondary));
  box-shadow: 
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    inset 0 0 10px hsla(200, 100%, 60%, 0.3);
}

.btn:hover {
  animation-duration: 2s; /* Faster glow on hover */
  transform: translateY(-2px);
  box-shadow: 
    0 0 15px var(--neon-primary),
    0 0 30px var(--neon-primary),
    0 0 45px var(--neon-primary),
    inset 0 0 15px hsla(200, 100%, 60%, 0.4);
}

.btn.alternate-glow {
  animation: alternate-colors 2s ease-in-out infinite alternate;
  background: linear-gradient(135deg, var(--neon-secondary), var(--neon-accent));
  box-shadow: 
    0 0 10px var(--neon-secondary),
    0 0 20px var(--neon-secondary),
    inset 0 0 10px hsla(280, 100%, 70%, 0.3);
  text-shadow: 
    0 0 5px var(--secondary-color),
    0 0 10px var(--neon-secondary);
}
.btn.alternate-glow:hover {
  box-shadow: 
    0 0 15px var(--neon-secondary),
    0 0 30px var(--neon-secondary),
    0 0 45px var(--neon-secondary),
    inset 0 0 15px hsla(280, 100%, 70%, 0.4);
}


.main-nav {
  background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460); /* Different dark gradient */
  border-top: 2px solid;
  border-bottom: 2px solid;
  animation: theme-colors 4s ease-in-out infinite reverse; /* Dynamic border color, reversed animation */
  box-shadow: 
    0 0 10px var(--neon-secondary), /* Different neon color for contrast */
    0 0 20px var(--neon-secondary),
    0 0 30px var(--neon-secondary),
    inset 0 0 20px hsla(280, 100%, 70%, 0.1);
  width: 100%;
  display: flex; /* Desktop: visible */
  min-height: 50px; /* Desktop main nav height */
  align-items: center;
}

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

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--secondary-color); /* Regular color, no neon */
  padding: 8px 15px;
  margin: 0 5px;
  transition: color 0.3s ease, background-color 0.3s ease;
  border-radius: 3px;
}

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

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

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}


/* Footer Styles */
.site-footer {
  background-color: #111; /* Regular dark background */
  color: #ccc;
  padding: 40px 0 20px;
  font-size: 14px;
}

.site-footer h4 {
  color: var(--secondary-color);
  font-size: 16px;
  margin-bottom: 15px;
  font-weight: bold;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-top {
  padding-bottom: 30px;
}

.footer-top .footer-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

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

.footer-col ul li a {
  color: #ccc;
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--primary-color);
}

.footer-logo {
  font-size: 20px;
  font-weight: bold;
  color: var(--primary-color);
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  line-height: 1.6;
  color: #aaa;
  word-wrap: break-word; /* Ensure full text display */
  overflow-wrap: break-word;
}

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

.payment-methods .payment-icons img,
.game-providers-section .game-providers-icons img,
.social-media-section .social-media-icons img {
  max-height: 50px;
  height: auto;
  width: auto;
  filter: grayscale(100%) brightness(150%); /* Make icons fit dark theme if needed */
  opacity: 0.7;
  transition: opacity 0.3s ease, filter 0.3s ease;
}

.payment-methods .payment-icons img:hover,
.game-providers-section .game-providers-icons img:hover,
.social-media-section .social-media-icons img:hover {
  opacity: 1;
  filter: grayscale(0%) brightness(100%);
}

.game-providers-section,
.social-media-section {
  padding: 20px 0;
  border-top: 1px solid #333;
  margin-top: 20px;
}

.game-providers-section:first-of-type {
  margin-top: 0;
}

.social-media-section {
  border-bottom: 1px solid #333;
  margin-bottom: 20px;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 20px;
}

.footer-bottom .footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.footer-bottom p {
  margin: 0;
  color: #aaa;
}

.footer-bottom ul {
  display: flex;
  gap: 15px;
}

.footer-bottom ul li a {
  color: #aaa;
  transition: color 0.3s ease;
}

.footer-bottom ul li a:hover {
  color: var(--primary-color);
}


/* Responsive Design */
@media (max-width: 768px) {
  /* Marquee Responsive */
  .marquee-section {
    height: 35px; /* Mobile Marquee height */
    padding: 0;
  }
  .marquee-container {
    gap: 10px;
    padding: 0 5px;
  }
  .marquee-icon {
    width: 25px;
    height: 25px;
  }
  .marquee-icon-emoji {
    font-size: 18px;
  }
  .marquee-text {
    font-size: 13px;
    padding: 0;
  }
  .marquee-separator {
    font-size: 13px;
    margin: 0 8px;
  }
  .marquee-content {
    gap: 20px;
    animation: marquee-scroll 25s linear infinite;
  }

  /* Header Responsive */
  .site-header {
    top: 35px; /* Offset by mobile marquee height */
    flex-direction: column; /* Stack elements */
  }

  .header-top {
    min-height: 70px; /* Mobile header top height */
    padding: 0 15px;
    border-bottom: none; /* No border for header-top on mobile */
    box-shadow: none; /* No shadow for header-top on mobile */
    background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Keep background */
  }

  .header-container {
    padding: 0; /* Remove padding as hamburger and logo handle it */
    justify-content: space-between; /* Hamburger left, Logo centered */
    position: relative; /* For logo absolute positioning */
    min-height: 70px; /* Ensure container has height */
  }

  .hamburger-menu {
    display: block; /* Show hamburger on mobile */
    order: 0; /* Place to the left */
    position: relative;
    z-index: 1002;
    margin-right: 15px; /* Space between hamburger and logo */
  }

  .logo {
    flex: 1 !important; /* Allow logo to take available space */
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 0; /* Remove padding */
    position: absolute; /* To center it regardless of hamburger */
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 100px); /* Account for hamburger width + some padding */
  }

  .logo img {
    max-height: 40px !important; /* Mobile logo max height */
  }

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

  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons */
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 10px 15px; /* Padding for the button row */
    gap: 10px;
    justify-content: center;
    flex-wrap: nowrap; /* Ensure buttons stay in one row */
    background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Match header background */
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
    min-height: 40px; /* Mobile button row height */
  }
  
  .mobile-nav-buttons .btn {
    flex: 1;
    min-width: 0;
    max-width: calc(50% - 5px); /* Two buttons, with 10px gap */
    padding: 8px 12px; /* Smaller padding */
    font-size: 13px; /* Smaller font size */
    text-align: center;
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    position: fixed;
    top: 0; /* Initial top, will be set by JS when active */
    left: 0;
    width: 75%; /* Slide-in from left */
    height: 100%; /* Will be adjusted by JS to be calc(100% - headerHeight) */
    flex-direction: column; /* Vertical navigation */
    justify-content: flex-start;
    padding-top: var(--header-offset); /* Push menu content down */
    transform: translateX(-100%); /* Off-screen by default */
    transition: transform 0.3s ease-out;
    background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Match header background */
    border-right: 2px solid;
    animation: theme-colors 4s ease-in-out infinite; /* Dynamic border color */
    box-shadow: 
      0 0 10px var(--neon-primary),
      0 0 20px var(--neon-primary),
      inset 0 0 20px hsla(200, 100%, 60%, 0.1);
    z-index: 1000; /* Above overlay, below hamburger */
  }

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

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
    width: 100%;
    max-width: none; /* No max-width on mobile */
  }

  .nav-link {
    width: 100%;
    padding: 12px 0;
    margin: 5px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  /* Footer Responsive */
  .footer-top .footer-container {
    grid-template-columns: 1fr; /* Single column on mobile */
  }

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

  .footer-bottom ul {
    flex-direction: column;
    gap: 8px;
  }

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