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

      /* Dynamic Neon Colors for animations */
      --neon-primary: #00FFFF;
      --neon-secondary: #00FF00;
      --neon-accent: #39FF14;

      /* Header Offset for Marquee */
      --header-offset: 168px; /* Desktop: 44px (marquee) + 68px (header-top) + 52px (main-nav) + 2-4px buffer */
    }

    body {
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: var(--background-color);
      color: var(--text-main-color);
      padding-top: var(--header-offset); /* Apply header offset */
      overflow-x: hidden; /* Prevent horizontal scroll */
      line-height: 1.6;
    }

    /* Global Animations for Neon Effects */
    @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: #00FFFF; box-shadow: 0 0 20px #00FFFF; }
      20% { border-color: #00FF00; box-shadow: 0 0 20px #00FF00; }
      40% { border-color: #7FFF00; box-shadow: 0 0 20px #7FFF00; }
      60% { border-color: #00FA9A; box-shadow: 0 0 20px #00FA9A; }
      80% { border-color: #00FFFF; box-shadow: 0 0 20px #00FFFF; }
      100% { border-color: #00FFFF; box-shadow: 0 0 20px #00FFFF; }
    }

    @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 rgba(17, 168, 78, 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 rgba(34, 199, 104, 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 rgba(87, 227, 141, 0.3);
      }
    }

    @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 {
      from {
        box-shadow: 0 0 5px currentColor, 0 0 10px currentColor;
      }
      to {
        box-shadow: 0 0 15px currentColor, 0 0 30px currentColor, 0 0 45px currentColor;
      }
    }
    
    @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: 44px; /* Desktop fixed height */
      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; /* Dynamic color change */
      box-shadow:
        0 0 10px #00FFFF,
        0 0 20px #00FFFF,
        0 0 30px #00FFFF,
        inset 0 0 20px rgba(255, 0, 255, 0.1);
      z-index: 1001; /* Ensure on top of 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;
    }

    .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;
      padding-right: 30px; /* Add padding to prevent abrupt cut-off */
    }

    .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: 44px; /* Desktop: below marquee */
      left: 0;
      width: 100%;
      z-index: 1000;
      background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
      border-bottom: 2px solid;
      animation: theme-colors 4s ease-in-out infinite; /* Dynamic color change */
      box-shadow:
        0 0 10px #00FA9A,
        0 0 20px #00FA9A,
        0 0 30px #00FA9A,
        inset 0 0 20px rgba(255, 255, 0, 0.1);
    }

    .header-top {
      box-sizing: border-box;
      height: 68px; /* Desktop fixed height */
      display: flex;
      align-items: center;
      overflow: hidden;
      padding: 0 20px; /* Padding for container to not stick to edges */
    }

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

    .logo {
      color: var(--text-main-color); /* Regular color, no neon */
      font-size: 24px;
      font-weight: bold;
      text-decoration: none;
      flex-shrink: 0;
      padding: 0; /* Logo itself doesn't need padding as container has it */
    }

    .logo img {
      display: block;
      max-width: 100%;
      height: auto;
      max-height: 60px; /* Desktop logo max height */
      object-fit: contain;
    }

    .desktop-nav-buttons {
      display: flex; /* Desktop: show buttons */
      gap: 10px;
      align-items: center;
    }

    .mobile-nav-buttons {
      display: none; /* Desktop: hide mobile buttons */
    }

    .main-nav {
      box-sizing: border-box;
      height: 52px; /* Desktop fixed height */
      display: flex; /* Desktop: show navigation */
      align-items: center;
      overflow: hidden;
      background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460); /* Different dark background */
      border-top: 2px solid;
      border-bottom: 2px solid;
      animation: theme-colors 4s ease-in-out infinite; /* Dynamic color change */
      box-shadow:
        0 0 10px #7FFF00,
        0 0 20px #7FFF00,
        0 0 30px #7FFF00,
        inset 0 0 20px rgba(255, 0, 0, 0.1);
    }

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

    .nav-link {
      color: var(--text-main-color);
      text-decoration: none;
      padding: 10px 15px;
      font-size: 16px;
      font-weight: 500;
      transition: color 0.3s ease, background-color 0.3s ease;
      white-space: nowrap;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--glow-color);
      background-color: rgba(var(--glow-color-rgb), 0.1);
      border-radius: 4px;
    }

    .hamburger-menu {
      display: none; /* Desktop: hide hamburger */
      background: none;
      border: none;
      cursor: pointer;
      padding: 10px;
      z-index: 1002;
      position: relative;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .hamburger-icon {
      display: block;
      width: 25px;
      height: 3px;
      background-color: var(--text-main-color);
      position: relative;
      transition: background-color 0.3s ease;
      animation: theme-colors 4s ease-in-out infinite; /* Dynamic color */
      box-shadow: 0 0 5px #00FF00, 0 0 10px #00FF00;
    }

    .hamburger-icon::before, .hamburger-icon::after {
      content: '';
      width: 25px;
      height: 3px;
      background-color: var(--text-main-color);
      position: absolute;
      left: 0;
      transition: transform 0.3s ease, background-color 0.3s ease;
      animation: theme-colors 4s ease-in-out infinite; /* Dynamic color */
      box-shadow: 0 0 5px #00FF00, 0 0 10px #00FF00;
    }

    .hamburger-icon::before { top: -8px; }
    .hamburger-icon::after { top: 8px; }

    .hamburger-menu.active .hamburger-icon { background-color: transparent; box-shadow: none; }
    .hamburger-menu.active .hamburger-icon::before { transform: translateY(8px) rotate(45deg); }
    .hamburger-menu.active .hamburger-icon::after { transform: translateY(-8px) rotate(-45deg); }

    .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;
    }

    /* --- Buttons --- */
    .btn {
      position: relative;
      background: var(--button-gradient);
      padding: 12px 20px; /* Adjusted padding for desktop */
      color: #ffffff;
      text-decoration: none;
      border-radius: 5px;
      border: 2px solid;
      animation: theme-colors 4s ease-in-out infinite; /* Dynamic color change */
      text-shadow:
        0 0 5px #ffffff,
        0 0 10px var(--neon-primary);
      transition: all 0.3s ease;
      font-weight: 600;
      white-space: nowrap;
      cursor: pointer;
    }

    .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),
        0 0 45px var(--neon-primary),
        inset 0 0 15px rgba(17, 168, 78, 0.5);
    }

    /* --- Footer Section --- */
    .site-footer {
      background-color: var(--card-bg); /* Regular style */
      color: var(--text-secondary-color);
      padding: 40px 20px 20px;
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      max-width: 1200px;
      margin: 0 auto 30px;
      padding-bottom: 30px;
      border-bottom: 1px solid var(--divider-color);
    }

    .footer-col {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

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

    .footer-description {
      margin: 0;
      word-wrap: break-word;
      overflow-wrap: break-wrap;
    }

    .site-footer h3 {
      color: var(--text-main-color);
      font-size: 18px;
      margin-top: 0;
      margin-bottom: 15px;
    }

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

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

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

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

    .footer-mid-area {
      max-width: 1200px;
      margin: 0 auto 30px;
      display: grid;
      grid-template-columns: repeat(4, 1fr); /* Example for mid slots */
      gap: 20px;
    }

    .footer-bottom {
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
      padding-top: 20px;
      border-top: 1px solid var(--divider-color);
      color: var(--text-secondary-color);
    }

    .footer-bottom p {
      margin: 0;
    }

    /* Dynamic Slot Anchor Styling (must not hide content) */
    .footer-slot-anchor-inner {
      min-height: 1px; /* Ensure visibility if no content */
      display: block; /* Ensure it's not hidden */
    }

    /* --- Responsive Styles --- */
    @media (max-width: 768px) {
      :root {
        --header-offset: 148px; /* Mobile: 36px (marquee) + 60px (header-top) + 48px (mobile-nav-buttons) + 4px buffer */
      }

      .marquee-section {
        height: 36px !important; /* Mobile fixed height */
        padding-top: 0 !important;
        padding-bottom: 0 !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;
        padding-right: 20px;
      }

      .site-header {
        top: 36px; /* Mobile: below marquee */
      }

      .header-top {
        height: 60px !important; /* Mobile fixed height */
        padding: 0 15px; /* Mobile padding */
      }

      .header-container {
        max-width: none; /* Mobile: no max-width */
        padding: 0; /* Reset padding as header-top has it */
      }

      .hamburger-menu {
        display: flex; /* Mobile: show hamburger */
        order: 0; /* Leftmost */
      }

      .logo {
        flex: 1 !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        font-size: 20px;
        order: 1; /* Center */
        padding-left: 10px; /* Prevent logo from touching hamburger */
      }

      .logo img {
        max-height: 56px !important; /* Mobile logo max height */
      }

      .desktop-nav-buttons {
        display: none !important; /* Mobile: hide desktop buttons */
      }

      .mobile-nav-buttons {
        display: flex !important; /* Mobile: show mobile buttons */
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        padding: 10px 15px; /* Padding for the button row */
        gap: 10px; /* Gap between buttons */
        justify-content: center;
        flex-wrap: nowrap; /* Ensure buttons stay in one line */
        background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
        border-bottom: 2px solid;
        animation: theme-colors 4s ease-in-out infinite; /* Dynamic color change */
        box-shadow:
          0 0 5px #11A84E,
          0 0 10px #11A84E,
          inset 0 0 10px rgba(17, 168, 78, 0.1);
      }

      .mobile-nav-buttons .btn {
        flex: 1; /* Equal width for buttons */
        min-width: 0; /* Allow shrinking */
        max-width: calc(50% - 5px); /* Max width considering gap */
        padding: 8px 12px; /* Smaller padding */
        font-size: 13px; /* Smaller font size */
        white-space: normal; /* Allow text wrapping */
        word-wrap: break-word;
        overflow-wrap: break-word;
        text-align: center;
      }

      .main-nav {
        display: none; /* Mobile: hide nav by default */
        position: fixed;
        top: 144px; /* Mobile: below header-top and mobile-nav-buttons */
        left: 0;
        width: 80%; /* Sidebar width */
        max-width: 300px;
        height: calc(100% - 144px); /* Full height below header */
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 20px 0;
        box-sizing: border-box;
        transform: translateX(-100%); /* Start off-screen */
        transition: transform 0.3s ease;
        background: linear-gradient(135deg, #0a0a0a, #1a1a2e, #16213e); /* Dark background */
        border-right: 2px solid;
        animation: theme-colors 4s ease-in-out infinite; /* Dynamic color change */
        box-shadow:
          0 0 10px #00FF00,
          0 0 20px #00FF00,
          0 0 30px #00FF00,
          inset 0 0 20px rgba(255, 0, 255, 0.1);
        z-index: 1000; /* Ensure it's above overlay */
      }

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

      .nav-container {
        flex-direction: column;
        align-items: flex-start;
        max-width: none;
        padding: 0 15px;
        height: auto;
      }

      .nav-link {
        width: 100%;
        padding: 12px 15px;
        border-bottom: 1px solid var(--divider-color);
      }
      .nav-link:last-child {
        border-bottom: none;
      }

      .footer-top-grid {
        grid-template-columns: 1fr; /* Single column for mobile */
        gap: 20px;
      }

      .footer-mid-area {
        grid-template-columns: 1fr; /* Single column for mobile */
      }

      /* Mobile image overflow protection */
      .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;
  }
}