/* Basic Reset & Body */
  :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 Colors (derived from primary/secondary/accent for dynamic flow) */
    --neon-primary: var(--primary-color); /* Initial primary for neon base */
    --neon-secondary: var(--secondary-color); /* Initial secondary for neon base */
    --neon-accent: var(--gold-color); /* Using gold as an accent for neon */
    --marquee-height-desktop: 44px;
    --marquee-height-mobile: 36px;
    --header-top-height-desktop: 68px;
    --header-top-height-mobile: 60px;
    --main-nav-height-desktop: 52px;
    --main-nav-height-mobile: 48px;
    --header-offset: 166px; /* Desktop with marquee */
  }

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

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

  /* Animations for Neon Effects */
  @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 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%;
    height: var(--marquee-height-desktop);
    box-sizing: border-box;
    background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
    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;
  }

  .marquee-container {
    width: 100%;
    max-width: 100%;
    height: 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: #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: var(--marquee-height-desktop); /* Position below marquee */
    left: 0;
    width: 100%;
    z-index: 1000;
    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;
    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);
  }

  .header-top {
    box-sizing: border-box;
    min-height: var(--header-top-height-desktop);
    height: var(--header-top-height-desktop);
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 0 20px;
    background: linear-gradient(135deg, #0f0f0f, #2a2a3e, #26314e); /* Slightly different dark background */
    border-bottom: 2px solid;
    animation: theme-colors 4s ease-in-out infinite reverse;
    box-shadow: 
      0 0 8px var(--neon-secondary),
      0 0 16px var(--neon-secondary),
      0 0 24px var(--neon-secondary),
      inset 0 0 15px rgba(0, 255, 255, 0.1);
  }

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

  .logo {
    color: #ffffff; /* LOGO is NOT neon */
    font-weight: bold;
    text-decoration: none;
    font-size: 24px;
    flex-shrink: 0;
    padding-left: 0; /* Rely on header-top padding */
  }

  .logo img {
    display: block;
    max-height: 60px;
    height: auto;
    width: auto;
    max-width: 280px;
    object-fit: contain;
  }

  /* Hamburger Menu (Desktop hidden) */
  .hamburger-menu {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1002;
    margin-right: 15px;
  }

  .hamburger-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-main);
    margin-bottom: 5px;
    transition: all 0.3s ease;
    text-shadow: 
      0 0 5px var(--neon-primary),
      0 0 10px var(--neon-primary);
  }

  .hamburger-menu span:last-child {
    margin-bottom: 0;
  }

  .hamburger-menu.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

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

  .hamburger-menu.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* Desktop Nav Buttons */
  .desktop-nav-buttons {
    display: flex; /* Always visible on desktop */
    gap: 10px;
    flex-shrink: 0;
  }

  /* Mobile Nav Buttons (Hidden on desktop) */
  .mobile-nav-buttons {
    display: none; /* Hidden on desktop by default */
    box-sizing: border-box;
    min-height: 48px;
    background: linear-gradient(135deg, #16213e, #1a1a2e, #0a0a0a); /* Dark background */
    border-bottom: 2px solid;
    animation: theme-colors 4s ease-in-out infinite;
    box-shadow: 
      0 0 6px var(--neon-accent),
      0 0 12px var(--neon-accent),
      0 0 18px var(--neon-accent),
      inset 0 0 10px rgba(255, 255, 0, 0.1);
    padding: 8px 20px;
    width: 100%;
    z-index: 999; /* Below header-top and main-nav */
  }

  /* Main Navigation (Desktop) */
  .main-nav {
    box-sizing: border-box;
    min-height: var(--main-nav-height-desktop);
    height: var(--main-nav-height-desktop);
    display: flex; /* Default to flex for desktop */
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
    border-top: 2px solid;
    animation: theme-colors 4s ease-in-out infinite reverse;
    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);
  }

  .nav-container {
    box-sizing: border-box;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 25px;
    padding: 0 20px;
  }

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

  .nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0;
    height: 2px;
    background-color: var(--glow-color);
    transition: width 0.3s ease;
  }

  .nav-link:hover {
    color: var(--glow-color);
  }

  .nav-link:hover::after {
    width: 100%;
  }

  /* Buttons */
  .btn {
    position: relative;
    background: var(--button-gradient);
    padding: 12px 25px;
    color: #ffffff;
    text-decoration: none;
    border-radius: 5px;
    border: 2px solid;
    animation: theme-colors 4s ease-in-out infinite; /* Dynamic color border */
    text-shadow: 
      0 0 5px #ffffff,
      0 0 10px var(--neon-primary);
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 15px;
    white-space: nowrap;
  }

  .btn:hover {
    animation-duration: 2s; /* Faster 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);
  }

  /* Mobile Menu Overlay */
  .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;
  }

  /* Footer */
  .site-footer {
    background-color: var(--background-color);
    padding: 40px 20px 20px;
    color: var(--text-secondary);
    font-size: 14px;
    text-align: center;
  }

  .footer-top-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto 30px;
    text-align: left;
  }

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

  .footer-logo {
    color: var(--text-main);
    font-weight: bold;
    text-decoration: none;
    font-size: 20px;
    display: block;
    margin-bottom: 15px;
  }

  .footer-heading {
    font-size: 18px;
    color: var(--text-main);
    margin-bottom: 15px;
    font-weight: 600;
  }

  .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(--glow-color);
  }

  .footer-description {
    color: var(--text-secondary);
    line-height: 1.5;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .footer-bottom {
    background-color: var(--deep-green);
    padding: 15px 20px;
    margin-top: 30px;
    border-top: 1px solid var(--divider-color);
  }

  .footer-bottom p {
    margin: 0;
    color: var(--text-secondary);
  }

  /* Mobile Responsive */
  @media (max-width: 768px) {
    :root {
      --header-offset: 146px; /* Mobile with marquee */
    }

    /* Mobile Marquee */
    .marquee-section {
      height: var(--marquee-height-mobile) !important;
    }

    .marquee-container {
      gap: 10px !important;
      padding: 0 12px !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;
    }

    /* Mobile Header */
    .site-header {
      top: var(--marquee-height-mobile); /* Position below marquee on mobile */
    }

    .header-top {
      min-height: var(--header-top-height-mobile) !important;
      height: var(--header-top-height-mobile) !important;
      padding: 0 15px; /* Adjust padding for mobile */
    }

    .header-container {
      width: 100%;
      max-width: none; /* Remove max-width for mobile */
      justify-content: space-between; /* Hamburger left, Logo center */
      padding: 0; /* Rely on header-top padding */
      position: relative; /* For absolute positioning of logo if needed */
    }

    .hamburger-menu {
      display: block; /* Show hamburger on mobile */
      order: 1; /* Place on left */
    }

    .logo {
      order: 2; /* Place in center */
      flex: 1 !important; /* Take remaining space */
      display: flex !important;
      justify-content: center !important;
      align-items: center !important;
      font-size: 20px;
      padding: 0; /* No extra padding */
      max-width: calc(100% - 70px); /* Adjust max-width to not overlap with hamburger */
    }

    .logo img {
      max-height: 56px !important; /* Adjust logo height for mobile */
    }
    
    /* Hide desktop buttons on mobile */
    .desktop-nav-buttons {
      display: none !important;
    }

    /* Show mobile buttons on mobile */
    .mobile-nav-buttons {
      display: flex !important; /* Always visible on mobile */
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 8px 15px;
      flex-wrap: nowrap; /* Prevent buttons from wrapping */
      box-sizing: border-box;
      width: 100%;
      max-width: 100%;
      overflow: hidden; /* Prevent overflow */
    }

    .mobile-nav-buttons .btn {
      flex: 1; /* Distribute space equally */
      min-width: 0; /* Allow shrinking */
      max-width: calc(50% - 5px); /* Max width for two buttons with gap */
      padding: 8px 12px; /* Smaller padding for mobile buttons */
      font-size: 13px; /* Smaller font size for mobile buttons */
      white-space: normal; /* Allow text to wrap */
      word-wrap: break-word; /* Ensure long words wrap */
      text-align: center;
    }

    /* Mobile Main Nav (Hamburger menu content) */
    .main-nav {
      position: fixed;
      top: calc(var(--marquee-height-mobile) + var(--header-top-height-mobile) + var(--main-nav-height-mobile)); /* Position below header parts */
      left: 0;
      width: 280px; /* Width of mobile menu */
      height: calc(100vh - (var(--marquee-height-mobile) + var(--header-top-height-mobile) + var(--main-nav-height-mobile))); /* Full height minus header */
      background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
      flex-direction: column;
      justify-content: flex-start;
      padding-top: 20px;
      transform: translateX(-100%); /* Hidden by default */
      transition: transform 0.3s ease;
      z-index: 1000; /* Above overlay */
      display: none; /* Hidden by default */
      border-right: 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);
    }

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

    .nav-container {
      flex-direction: column;
      align-items: flex-start;
      gap: 15px;
      padding: 0 20px;
      width: 100%;
      max-width: none;
    }

    .nav-link {
      width: 100%;
      padding: 10px 0;
      font-size: 18px;
    }

    /* Mobile Footer */
    .footer-top-grid {
      grid-template-columns: 1fr; /* Single column layout */
      text-align: center;
    }

    .footer-col {
      margin-bottom: 20px;
    }
    
    .footer-col:last-of-type {
      margin-bottom: 0;
    }

    .footer-nav {
      text-align: center;
    }
    
    .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 no double padding from --header-offset on main content blocks */
  .page-xxx__hero-section,
  .page-xxx__video-section,
  .page-xxx__title-section {
    padding-top: 10px; /* Decorative top spacing, not header offset */
  }
/* 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;
  }
}