:root {
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --card-bg: #11271B;
  --background-color: #08160F;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green: #0A4B2C;

  /* Neon dynamic color variables */
  --neon-primary: var(--glow-color); /* Using Glow for primary neon effect */
  --neon-secondary: var(--primary-color);
  --neon-accent: var(--gold-color);

  /* Header offset calculation */
  --header-offset: 166px; /* Marquee 44px + HeaderTop 68px + MainNav 52px + 2px buffer */
}

body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding-top: var(--header-offset); /* Only place for padding-top */
  background-color: var(--background-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden; /* Prevents horizontal scroll from body */
}

a {
  color: var(--text-main);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Common container styles */
.header-container, .nav-container, .footer-top-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  box-sizing: border-box;
}

/* 🚨 Marquee Section Styles (MUST strictly adhere, Neon style) */
.marquee-section {
  position: fixed; /* Fixed at top */
  top: 0;
  left: 0;
  width: 100%;
  height: 44px; /* 🚨 Fixed height */
  box-sizing: border-box;
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
  color: #ffffff;
  overflow: hidden;
  /* 🚨 Neon glowing border (MUST use dynamic colors) */
  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; /* Ensure above header */
}

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

/* 🚨 Dynamic Speaker Icon Styles (MUST strictly adhere, Neon style) */
.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;
  /* 🚨 Neon glowing effect (MUST use dynamic colors) */
  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));
}

/* 🚨 Speaker Pulse Animation (MUST strictly adhere) */
@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 Link Styles (MUST strictly adhere, Neon style) */
.marquee-text {
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  text-decoration: none; /* Remove underline */
  /* 🚨 Neon glowing text (MUST use dynamic colors) */
  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; /* Show hand cursor */
  transition: all 0.3s ease;
}

/* 🚨 Marquee Text Link Hover Effect (MUST strictly adhere, enhanced glow) */
.marquee-text:hover {
  /* Enhance glowing effect on 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); /* Slight scale */
  color: #ffffff;
}

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

/* Marquee scrolling animation */
@keyframes marquee-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* 🚨 Header Styles (MUST strictly adhere, Neon style) */
.site-header {
  position: fixed;
  top: 44px; /* Below marquee */
  left: 0;
  width: 100%;
  z-index: 1000; /* Below marquee */
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
  color: var(--text-main);
  border-bottom: 2px solid;
  animation: theme-colors 4s ease-in-out infinite; /* Dynamic color border */
  box-shadow: 
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    inset 0 0 10px rgba(255, 255, 255, 0.1);
}

/* 🚨 Header Top Bar (MUST strictly adhere, fixed height) */
.header-top {
  box-sizing: border-box;
  height: 68px; /* 🚨 Fixed height */
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
  border-bottom: 1px solid var(--divider-color);
  box-shadow: 
    0 0 8px var(--neon-accent) inset,
    0 0 15px var(--neon-accent);
}

.header-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 🚨 Main Navigation Bar (MUST strictly adhere, fixed height) */
.main-nav {
  box-sizing: border-box;
  height: 52px; /* 🚨 Fixed height */
  display: flex; /* Desktop default: flex */
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460); /* Slightly different dark background */
  border-top: 1px solid var(--divider-color);
  box-shadow: 
    0 0 8px var(--neon-secondary) inset,
    0 0 15px var(--neon-secondary);
}

.nav-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center; /* Center nav links on desktop */
}

/* 🚨 LOGO Styles (MUST NOT use neon effects) */
.logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--text-main); /* Regular color, clear contrast */
  text-decoration: none;
  display: block; /* Ensure visibility */
  padding: 0;
  margin-right: auto; /* Push buttons to right */
}
.logo img {
  display: block;
  max-width: 100%;
  height: auto;
  max-height: 60px; /* Max height for desktop logo */
  object-fit: contain;
}

/* Hamburger Menu (Desktop hidden) */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1002; /* Above logo on mobile */
  margin-right: 15px; /* Spacing from logo */
  flex-shrink: 0;
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--neon-primary); /* Neon color for hamburger */
  border-radius: 2px;
  position: absolute;
  left: 0;
  transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
  box-shadow: 0 0 5px var(--neon-primary), 0 0 10px var(--neon-primary);
  animation: theme-colors-text-shadow 4s ease-in-out infinite alternate;
}

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

.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);
}

/* Desktop Navigation Links */
.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-main); /* Regular text color */
  padding: 10px 15px;
  margin: 0 5px;
  transition: all 0.3s ease;
  text-decoration: none;
  display: flex;
  align-items: center;
  height: 100%; /* Ensure link fills parent height */
}

.nav-link:hover {
  color: var(--glow-color); /* Highlight color on hover */
  text-decoration: none;
  background-color: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 5px var(--glow-color) inset;
}

/* 🚨 Desktop Buttons Container (MUST be present, desktop visible) */
.desktop-nav-buttons {
  display: flex; /* Desktop default: flex */
  gap: 10px;
  align-items: center;
  margin-left: auto; /* Push to right */
  flex-shrink: 0;
}

/* 🚨 Mobile Buttons Container (MUST be present, desktop hidden) */
.mobile-nav-buttons {
  display: none; /* Hidden on desktop */
}

/* 🚨 Button Base Styles (MUST use dynamic colors & neon effects) */
.btn {
  position: relative;
  background: var(--button-gradient); /* Custom button gradient */
  padding: 12px 25px;
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap; /* Prevent text wrap on desktop */
  
  /* 🚨 MUST use dynamic color effect, not fixed color */
  border: 2px solid;
  animation: theme-colors 4s ease-in-out infinite;
  text-shadow: 
    0 0 5px #ffffff,
    0 0 10px var(--neon-primary);
  box-shadow: 
    0 0 10px var(--neon-primary),
    0 0 20px var(--neon-primary),
    inset 0 0 10px rgba(102, 126, 234, 0.3);
}

/* Button hover effect (enhance dynamic color) */
.btn:hover {
  animation-duration: 2s; /* Speed up color change on hover */
  transform: translateY(-2px);
  box-shadow: 
    0 0 15px var(--neon-primary),
    0 0 30px var(--neon-primary),
    inset 0 0 15px rgba(102, 126, 234, 0.5);
}

/* Overlay for mobile menu */
.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; /* Below menu, above content */
}
.mobile-menu-overlay.active {
  display: block;
}

/* 🚨 Footer Styles (Regular, NO neon effects) */
.site-footer {
  background-color: var(--card-bg); /* Use Card BG for footer */
  color: var(--text-secondary);
  padding: 40px 0 20px;
  font-size: 14px;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 30px;
}

.footer-col {
  padding: 0 10px;
}

.footer-col h3 {
  color: var(--text-main);
  font-size: 18px;
  margin-bottom: 15px;
}

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

.footer-description {
  line-height: 1.8;
  word-wrap: break-word; /* Ensure full text display */
  overflow-wrap: break-word;
}

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

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

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-nav a:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

.footer-mid-area {
  padding: 20px;
  text-align: center;
  border-top: 1px solid var(--divider-color);
  border-bottom: 1px solid var(--divider-color);
  margin-bottom: 20px;
}
.footer-mid-area > .footer-slot-anchor-inner {
  margin-bottom: 10px; /* Spacing for dynamic slots */
}

/* 🚨 Footer Bottom (MUST NOT contain any links) */
.footer-bottom {
  text-align: center;
  padding: 10px 20px;
  color: var(--text-secondary);
  font-size: 13px;
}

/* Dynamic color animations */
@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 gradient-flow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes random-glow {
  0% { border-color: #ff00ff; box-shadow: 0 0 20px #ff00ff; }
  20% { border-color: #00ffff; box-shadow: 0 0 20px #00ffff; }
  40% { border-color: #ffff00; box-shadow: 0 0 20px #ffff00; }
  60% { border-color: #00ff00; box-shadow: 0 0 20px #00ff00; }
  80% { border-color: #ff0000; box-shadow: 0 0 20px #ff0000; }
  100% { border-color: #ff00ff; box-shadow: 0 0 20px #ff00ff; }
}

@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 theme-colors-text-shadow {
  0%, 100% {
    text-shadow: 
      0 0 5px var(--neon-primary),
      0 0 10px var(--neon-primary);
  }
  33% {
    text-shadow: 
      0 0 5px var(--neon-secondary),
      0 0 10px var(--neon-secondary);
  }
  66% {
    text-shadow: 
      0 0 5px var(--neon-accent),
      0 0 10px var(--neon-accent);
  }
}

@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;
  }
}

/* Mobile responsive design */
@media (max-width: 768px) {
  :root {
    --header-offset: 146px; /* Marquee 36px + HeaderTop 60px + MobileNavButtons 48px + 2px buffer */
  }

  /* 🚨 Mobile Marquee Section (MUST strictly adhere) */
  .marquee-section {
    height: 36px !important; /* 🚨 Mobile fixed height */
    padding-top: 0px !important;
    padding-bottom: 0px !important;
  }
  .marquee-container {
    gap: 10px !important;
    padding: 0 12px !important;
    height: 100% !important;
  }
  .marquee-icon {
    width: 20px !important;
    height: 20px !important;
  }
  .marquee-icon-emoji {
    font-size: 14px !important;
  }
  .marquee-text {
    font-size: 14px !important;
  }
  .marquee-separator {
    font-size: 14px !important;
    margin: 0 10px !important;
  }
  .marquee-content {
    gap: 20px;
    animation: marquee-scroll 25s linear infinite;
  }

  .site-header {
    top: 36px; /* Below mobile marquee */
  }

  /* 🚨 Header Top Bar Mobile (MUST strictly adhere) */
  .header-top {
    height: 60px !important; /* 🚨 Mobile fixed height */
    padding-top: 0 !important;
    padding-bottom: 0 !important;
  }

  .header-container {
    width: 100%;
    max-width: none; /* MUST NOT limit width on mobile */
    padding-left: 15px;
    padding-right: 15px;
    justify-content: space-between; /* Hamburger left, Logo center */
    position: relative;
  }
  
  /* 🚨 Mobile Logo Centering (MUST strictly adhere, Method 1: Flexbox + !important) */
  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 20px; /* Adjust font size for mobile logo text */
    margin: 0 !important; /* Reset margin */
  }
  .logo img {
    max-height: 40px !important; /* Max height for mobile image logo */
    max-width: 100%; /* Ensure image fits */
  }

  .hamburger-menu {
    display: block; /* Show hamburger on mobile */
    margin-right: 0; /* Adjust margin */
    order: -1; /* Place hamburger to the left */
  }

  /* 🚨 Main Navigation Bar Mobile (MUST strictly adhere) */
  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column; /* Vertical layout for mobile menu */
    position: fixed; /* Fixed position for mobile menu */
    top: var(--header-offset); /* Below header-top and mobile-nav-buttons */
    left: 0;
    width: 80%; /* Menu width */
    height: calc(100% - var(--header-offset)); /* Fill remaining height */
    overflow-y: auto;
    background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e);
    box-shadow: 5px 0 15px rgba(0, 0, 0, 0.5);
    transform: translateX(-100%); /* Slide out to left */
    transition: transform 0.3s ease-in-out;
    z-index: 1000; /* Above overlay */
    border: none; /* Remove desktop borders */
  }

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

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 0;
    width: 100%;
    max-width: none; /* MUST NOT limit width on mobile */
  }

  .nav-link {
    width: 100%;
    padding: 15px 20px;
    margin: 0;
    border-bottom: 1px solid var(--divider-color);
  }
  .nav-link:last-child {
    border-bottom: none;
  }

  /* 🚨 Desktop Buttons Container (MUST be hidden on mobile) */
  .desktop-nav-buttons {
    display: none; /* Hide desktop buttons on mobile */
  }

  /* 🚨 Mobile Buttons Container (MUST be visible on mobile) */
  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons on mobile */
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden; /* Prevent overflow */
    gap: 10px; /* Spacing between buttons */
    justify-content: center;
    flex-wrap: nowrap; /* MUST NOT wrap, max 2 buttons in one row */
    height: 48px; /* 🚨 Fixed height for mobile button bar */
    align-items: center;
    background: linear-gradient(135deg, #1a1a2e, #0a0a0a); /* Dark background for button bar */
    box-shadow: 
      0 5px 10px rgba(0,0,0,0.3),
      inset 0 0 8px rgba(255,255,255,0.1);
  }
  
  /* 🚨 Mobile Button Styles (MUST strictly adhere, width limits) */
  .mobile-nav-buttons .btn {
    flex: 1; /* Distribute space evenly */
    min-width: 0; /* Allow shrinking */
    max-width: calc(50% - 5px); /* 🚨 Max width considering gap */
    box-sizing: border-box;
    white-space: normal; /* Allow text wrap */
    word-wrap: break-word;
    overflow-wrap: break-word;
    padding: 8px 12px; /* 🚨 Reduced padding */
    font-size: 13px; /* 🚨 Reduced font size */
    text-align: center;
  }

  .footer-top-grid {
    grid-template-columns: 1fr; /* Single column on mobile */
    gap: 20px;
    padding-left: 15px;
    padding-right: 15px;
  }
  .footer-col {
    padding: 0;
  }

  /* Mobile 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;
  }
}

/* Ensure body does not scroll when menu is active */
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;
  }
}