:root {
  --header-offset: 122px; /* Desktop: header-top (68) + main-nav (52) = 120 + 2px buffer */
  --primary-color: #C91F17;
  --accent-color: #E53935;
  --button-gradient: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  --card-bg: #D32F2F;
  --site-bg: #B71C1C;
  --text-main: #FFF5E1;
  --border-color: #F2B544;
  --glow-color: #FFCC66;
  --gold-color: #F4D34D;
  --deep-red-color: #7A0E0E;
}

html {
  scroll-behavior: smooth;
}

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

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

a:hover {
  color: var(--gold-color);
}

/* --- Site Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.header-top {
  box-sizing: border-box;
  min-height: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--deep-red-color); /* Distinct from main-nav */
  width: 100%;
  padding: 0 20px; /* Padding for the header-top itself */
}

.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;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--gold-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: 0 0 5px var(--glow-color);
  display: block; /* Ensure logo is always visible */
}

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

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

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

.btn {
  padding: 10px 15px;
  border-radius: 5px;
  font-weight: bold;
  text-transform: uppercase;
  color: var(--deep-red-color); /* Text color for gradient button */
  background: var(--button-gradient);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  text-decoration: none; /* Remove underline */
  white-space: nowrap; /* Prevent text wrap on desktop */
}

.btn:hover {
  filter: brightness(1.1);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
}

.main-nav {
  box-sizing: border-box;
  min-height: 52px;
  height: 52px;
  display: flex; /* Desktop: visible, horizontal */
  align-items: center;
  overflow: hidden;
  background-color: var(--primary-color); /* Distinct from header-top */
  width: 100%;
  position: static; /* Desktop: normal flow */
}

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

.nav-link {
  padding: 0 15px;
  height: 100%;
  display: flex;
  align-items: center;
  font-weight: bold;
  color: var(--text-main);
  transition: background-color 0.3s ease, color 0.3s ease;
  white-space: nowrap; /* Prevent nav links from wrapping */
}

.nav-link:hover {
  background-color: var(--accent-color);
  color: var(--gold-color);
}

/* Hamburger menu styles (desktop hidden) */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-main);
  margin-bottom: 5px;
  transition: all 0.3s ease;
  border-radius: 2px;
}

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

/* Overlay for 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;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.overlay.active {
  display: block;
  opacity: 1;
}

/* --- Site Footer --- */
.site-footer {
  background-color: var(--deep-red-color); /* Use a deep red from the palette */
  padding: 40px 20px 20px;
  color: var(--text-main);
  font-size: 14px;
  box-sizing: border-box;
}

.site-footer h3 {
  color: var(--gold-color);
  font-size: 18px;
  margin-bottom: 20px;
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.2);
}

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

.footer-col {
  padding-right: 15px; /* Visual separation */
}

.footer-col:last-child {
  padding-right: 0;
}

.footer-logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--gold-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: 0 0 5px var(--glow-color);
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  margin-bottom: 20px;
  line-height: 1.8;
  word-wrap: break-word; /* Ensure description wraps */
  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);
  transition: color 0.3s ease;
}

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

.footer-slot-anchor-inner {
  margin-top: 20px; /* Provides some spacing for injected 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 {
  max-width: 1200px;
  margin: 20px auto;
}

.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 var(--border-color);
  margin-top: 30px;
  color: var(--text-main);
}

.footer-bottom p {
  margin: 0;
}

/* Ensure no double padding-top for page content */
.page-xxx:not(body) {
    padding-top: 10px; /* Small decorative top margin, not full header offset */
}

/* --- Mobile Specific Styles --- */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* Mobile: header-top (60) + mobile-nav-buttons (48) + 2px buffer = 108 + 2px */
  }

  body {
    padding-top: var(--header-offset);
    overflow-x: hidden; /* Ensure body overflow-x is hidden */
  }

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

  /* Header adjustments for mobile */
  .header-top {
    min-height: 60px !important;
    height: 60px !important;
    padding: 0 15px; /* Smaller padding for mobile */
  }

  .header-container {
    width: 100%;
    max-width: none; /* No max-width on mobile */
    justify-content: space-between; /* Hamburger left, Logo center, empty right */
    position: relative; /* For logo absolute positioning if needed */
  }

  .hamburger-menu {
    display: block; /* Visible on mobile */
    position: relative; /* For z-index */
    z-index: 1001;
  }

  /* Mobile Logo Centering (Method 1: Flexbox) */
  .logo {
    flex: 1 !important; /* Take available space */
    display: flex !important;
    justify-content: center !important; /* Center content */
    align-items: center !important;
    position: absolute; /* To allow centering over hamburger */
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 80px); /* Account for hamburger width + padding */
  }

  .logo img {
    max-height: 56px !important; /* Adjusted for mobile header height */
  }

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

  /* Show mobile buttons below header-top */
  .mobile-nav-buttons {
    display: flex !important;
    min-height: 48px;
    align-items: center;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden; /* Prevent button overflow */
    gap: 10px;
    flex-wrap: nowrap; /* Ensure buttons stay in one row */
    background-color: var(--accent-color); /* A different color for this strip */
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  }

  .mobile-nav-buttons .btn {
    flex: 1;
    min-width: 0;
    max-width: calc(50% - 5px); /* For two buttons with 10px gap */
    box-sizing: border-box;
    padding: 8px 12px;
    font-size: 13px;
    white-space: normal; /* Allow text wrap */
    word-wrap: break-word;
    overflow-wrap: break-word;
    text-align: center;
  }

  /* Main navigation (mobile hidden by default, fixed position) */
  .main-nav {
    display: none; /* Hidden by default on mobile */
    flex-direction: column; /* Vertical on mobile */
    position: fixed;
    top: var(--header-offset); /* Position below header + mobile buttons */
    left: 0;
    width: 280px; /* Sidebar width */
    height: calc(100% - var(--header-offset));
    background-color: var(--deep-red-color); /* Sidebar background */
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.3);
    transform: translateX(-100%); /* Off-screen by default */
    transition: transform 0.3s ease;
    z-index: 1000; /* Below overlay */
    overflow-y: auto; /* Allow scrolling for long menus */
  }

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

  .nav-container {
    width: 100%;
    max-width: none; /* No max-width on mobile */
    flex-direction: column; /* Vertical links */
    padding: 20px 0; /* Vertical padding */
    align-items: flex-start;
  }

  .nav-link {
    width: 100%;
    padding: 12px 20px; /* Larger touch area */
    justify-content: flex-start;
  }

  /* Hamburger menu active state */
  .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);
  }

  /* Footer adjustments for mobile */
  .site-footer {
    padding: 30px 15px 15px;
  }

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

  .footer-col {
    padding-right: 0;
  }

  .footer-logo {
    font-size: 22px;
  }

  .footer-dynamic-row {
    margin: 15px auto;
  }
}
/* 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;
  }
}