:root {
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --card-bg-color: #17191F;
  --background-color: #0D0E12;
  --text-main-color: #FFF3E6;
  --border-color: #A84F0C;
  --glow-color: #FFB04D;
  --deep-orange-color: #D96800;

  --header-offset: 122px; /* Desktop: 68px (header-top) + 52px (main-nav) + 2px buffer */
}

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

/* Site Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

/* Header Top Section */
.header-top {
  box-sizing: border-box;
  height: 68px; /* Desktop fixed height */
  background-color: var(--deep-orange-color); /* Distinct from main-nav */
  display: flex;
  align-items: center;
  overflow: hidden;
  width: 100%;
}

.header-container {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px; /* Padding for logo and buttons */
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--text-main-color);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block; /* Ensure it's not hidden by default */
}

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

/* Buttons */
.btn {
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: bold;
  color: var(--text-main-color);
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange-color) 100%);
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2), 0 0 8px var(--glow-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap; /* Prevent button text from wrapping on desktop */
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 12px var(--glow-color);
}

/* Main Navigation */
.main-nav {
  box-sizing: border-box;
  height: 52px; /* Desktop fixed height */
  background-color: var(--card-bg-color); /* Distinct from header-top */
  display: flex; /* Desktop default: flex */
  align-items: center;
  overflow: hidden;
  width: 100%;
  position: static; /* Desktop default: static */
}

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

.nav-link {
  text-decoration: none;
  color: var(--text-main-color);
  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(--secondary-color);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

/* Hamburger Menu (Hidden on Desktop) */
.hamburger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  cursor: pointer;
  z-index: 1002;
  position: relative;
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-main-color);
  border-radius: 3px;
  transition: all 0.3s ease;
}

.hamburger-menu.active span:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}

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

.hamburger-menu.active span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/* Mobile Navigation Buttons (Hidden on Desktop) */
.mobile-nav-buttons {
  display: none; /* Hidden on desktop */
}

/* Spacer for mobile logo centering (Hidden on Desktop) */
.mobile-right-spacer {
  display: none; /* Hidden on desktop */
}

/* Overlay for Mobile Menu (Hidden on Desktop) */
.overlay {
  display: none; /* Hidden on desktop */
}

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

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

.footer-top-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

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

.footer-logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--text-main-color);
  text-decoration: none;
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  margin-bottom: 15px;
  line-height: 1.8;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

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

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

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

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

.footer-slot-anchor-inner {
  margin-top: 15px; /* Spacing for dynamic content */
}

.footer-dynamic-col .footer-slot-anchor-inner {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 5px;
}

.footer-dynamic-row {
  margin-bottom: 20px;
  width: 100%;
}

.footer-dynamic-row .footer-slot-anchor-inner {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 20px;
  font-size: 13px;
}

/* Responsive Styles */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* Mobile: 60px (header-top) + 48px (mobile-nav-buttons) + 2px buffer */
  }

  body {
    padding-top: var(--header-offset);
  }

  /* Header Top Section */
  .header-top {
    height: 60px !important; /* Mobile fixed height */
    padding: 0 15px;
    justify-content: space-between; /* Hamburger left, logo center, spacer right */
    position: relative; /* For absolute positioning of logo */
  }

  .header-container {
    padding: 0;
    max-width: none;
    position: static;
    width: auto; /* Allow content to dictate width */
  }
  
  .hamburger-menu {
    display: flex; /* Show hamburger on mobile */
    order: 1;
  }

  .logo {
    order: 2;
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    position: absolute; /* Override flex positioning for precise centering */
    left: 50%;
    transform: translateX(-50%);
    width: auto; /* Allow content to dictate width */
    max-width: calc(100% - 100px); /* Adjust max-width to not overlap hamburger/spacer */
  }

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

  .mobile-right-spacer {
    display: block; /* Show spacer on mobile */
    width: 30px; /* Match hamburger width for balance */
    height: 1px; /* Minimal height */
    order: 3;
  }

  /* Mobile Navigation Buttons */
  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons */
    min-height: 48px; /* Mobile fixed height */
    align-items: center;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px; /* Padding for buttons */
    overflow: hidden; /* Prevent overflow */
    gap: 10px;
    flex-wrap: nowrap; /* Keep buttons in one line */
    background-color: var(--card-bg-color); /* Consistent background */
  }

  .mobile-nav-buttons .btn {
    flex: 1; /* Distribute space evenly */
    min-width: 0; /* Allow shrinking */
    max-width: calc(50% - 5px); /* Max width for two buttons with gap */
    box-sizing: border-box;
    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;
  }

  /* Main Navigation */
  .main-nav {
    display: none; /* Hide by default on mobile */
    position: fixed; /* Fixed position for mobile slide-out menu */
    top: var(--header-offset); /* Position below header */
    left: 0;
    width: 80%; /* Menu width */
    max-width: 300px;
    height: calc(100% - var(--header-offset)); /* Full height below header */
    background-color: var(--card-bg-color);
    flex-direction: column; /* Vertical menu items */
    transform: translateX(-100%); /* Slide out from left */
    transition: transform 0.3s ease;
    z-index: 1001; /* Above header, below overlay */
    overflow-y: auto; /* Scroll if content overflows */
    align-items: flex-start; /* Align menu items to start */
  }

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

  .nav-container {
    flex-direction: column; /* Vertical menu items */
    padding: 0;
    width: 100%;
    max-width: none;
    height: auto;
  }

  .nav-link {
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    text-align: left;
  }

  /* Overlay */
  .overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999; /* Below menu, above main content */
    display: none;
  }

  .overlay.active {
    display: block;
  }

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

  .footer-col {
    text-align: center;
  }

  .footer-col:not(:last-child) {
    margin-bottom: 20px;
  }

  .footer-col h3 {
    text-align: center;
  }

  .footer-nav {
    text-align: center;
  }

  .footer-nav li {
    display: inline-block; /* Make footer links inline */
    margin: 0 8px 10px;
  }

  .footer-logo {
    text-align: center;
  }

  .footer-description {
    text-align: center;
  }

  .footer-dynamic-col .footer-slot-anchor-inner,
  .footer-dynamic-row .footer-slot-anchor-inner {
    justify-content: center; /* Center dynamic content */
  }

  .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;
  }
}