:root {
  --primary-color: #C61F1F;
  --accent-color: #E53030;
  --button-gradient: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%);
  --card-bg-color: #2A1212;
  --site-bg-color: #140C0C;
  --text-main-color: #FFF1E8;
  --border-color: #6A1E1E;
  --gold-color: #F3C54D;
  --deep-red-color: #7E0D0D;
  --header-offset: 122px; /* Desktop: 68px (header-top) + 52px (main-nav) + 2px buffer */
}

html {
  scroll-behavior: smooth;
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
  background-color: var(--site-bg-color); /* Fallback for transparency issues */
}

/* Header Top */
.header-top {
  box-sizing: border-box;
  min-height: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--deep-red-color);
  width: 100%;
  padding: 0 20px; /* Default padding for desktop */
}

.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;
  display: block; /* Ensure it's block for proper alignment */
}

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

.desktop-nav-buttons {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn {
  background: var(--button-gradient);
  color: #FFFFFF; /* White text for contrast */
  padding: 10px 20px;
  border-radius: 5px;
  font-size: 15px;
  font-weight: bold;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
}

/* Mobile Nav Buttons (hidden by default on desktop) */
.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden by default */
  min-height: 48px;
  background-color: var(--primary-color); /* Distinct background */
  width: 100%;
  padding: 10px 20px;
  justify-content: center; /* Center buttons on mobile */
  align-items: center;
  gap: 10px;
}

/* Main Navigation */
.main-nav {
  box-sizing: border-box;
  min-height: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--site-bg-color);
  width: 100%;
}

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

.nav-link {
  color: var(--text-main-color);
  font-size: 16px;
  font-weight: bold;
  padding: 5px 0;
  position: relative;
  transition: color 0.2s ease;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--gold-color);
  transition: width 0.2s ease;
}

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

/* Hamburger Menu (hidden on desktop) */
.hamburger-menu {
  display: none; /* Hidden by default */
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  cursor: pointer;
  z-index: 1001; /* Above header */
}

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

.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 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;
}

.mobile-nav-menu {
  display: none; /* Hidden by default in CSS */
  position: fixed;
  top: 0;
  left: 0;
  width: 280px; /* Adjust as needed */
  height: 100%;
  background-color: var(--card-bg-color);
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
  transform: translateX(-100%); /* Start off-screen */
  transition: transform 0.3s ease-in-out;
  z-index: 1001; /* Above mobile overlay */
  flex-direction: column; /* Stack links vertically */
  align-items: flex-start;
  padding: 120px 20px 20px; /* Offset for fixed header and mobile buttons */
  box-sizing: border-box;
  overflow-y: auto;
}

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

.mobile-nav-menu .nav-link {
  display: block;
  width: 100%;
  padding: 15px 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main-color);
  font-size: 17px;
  font-weight: normal;
}

.mobile-nav-menu .nav-link:last-child {
  border-bottom: none;
}

/* Footer */
.site-footer {
  background-color: var(--site-bg-color);
  color: var(--text-main-color);
  padding: 40px 20px 20px;
  font-size: 14px;
  line-height: 1.6;
}

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

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

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

.footer-description {
  color: var(--text-main-color);
  margin-bottom: 15px;
  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);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  text-align: center;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  margin-top: 20px;
  color: var(--text-main-color);
}

.footer-bottom p {
  margin: 0;
}

/* Dynamic slot anchor inner container */
.footer-slot-anchor-inner {
  margin-top: 15px; /* Give some spacing for injected content */
}

/* Mobile specific 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);
    overflow-x: 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 Top */
  .header-top {
    min-height: 60px;
    height: 60px;
    padding: 0 15px;
  }

  .header-container {
    padding: 0; /* Container itself doesn't need padding, use header-top padding */
    position: relative; /* For logo absolute positioning */
  }

  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 24px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 100px); /* Leave space for hamburger */
  }

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

  .desktop-nav-buttons {
    display: none !important;
  }

  .hamburger-menu {
    display: flex;
    position: relative; /* Ensure it's clickable */
    z-index: 1002; /* Higher than logo */
  }

  /* Mobile Nav Buttons */
  .mobile-nav-buttons {
    display: flex !important; /* Show on mobile */
    min-height: 48px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap;
    background-color: var(--primary-color);
  }

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

  /* Main Navigation (mobile menu content) */
  .main-nav {
    display: none; /* Hidden by default */
    min-height: 48px;
    height: 48px;
    background-color: var(--site-bg-color); /* Matches desktop main-nav */
  }

  .nav-container {
    width: 100%;
    max-width: none; /* Crucial for mobile full width */
    padding: 0 15px;
    gap: 15px; /* Adjust gap for mobile */
  }

  .mobile-nav-menu {
    display: none; /* Ensure it's hidden by default */
    top: 0;
    left: 0;
    width: 280px;
    height: 100%;
    background-color: var(--card-bg-color);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    z-index: 1001; /* Higher than site-header */
    flex-direction: column;
    align-items: flex-start;
    padding: 120px 20px 20px; /* Adjusted padding to clear header and mobile buttons */
    box-sizing: border-box;
    overflow-y: auto;
  }

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

  .mobile-nav-menu .nav-link {
    font-size: 16px;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr; /* Stack columns on mobile */
    gap: 20px;
  }

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

  .footer-col h3 {
    margin-top: 20px;
  }

  .footer-nav {
    margin-top: 10px;
  }
}

/* Ensure body scroll is prevented when menu is open */
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;
  }
}