:root {
  --header-offset: 122px;
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --card-bg: #17191F;
  --background-color: #0D0E12;
  --text-main-color: #FFF3E6;
  --border-color: #A84F0C;
  --glow-color: #FFB04D;
  --deep-orange-color: #D96800;
}

html {
  scroll-behavior: smooth;
}

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 for body */
}

/* Base styles for links and buttons */
a {
  color: var(--text-main-color);
  text-decoration: none;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 5px;
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange-color) 100%);
  color: var(--text-main-color);
  font-weight: bold;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  white-space: nowrap;
}

.btn:hover {
  background: linear-gradient(180deg, var(--glow-color) 0%, var(--primary-color) 100%);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4), 0 0 15px var(--glow-color);
  transform: translateY(-1px);
}

/* Header styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  box-sizing: border-box;
  overflow: hidden;
}

.header-top {
  background-color: var(--background-color); /* Darker background */
  min-height: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  overflow: hidden;
  width: 100%;
}

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

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
}

.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;
}

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

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

.nav-link {
  color: var(--text-main-color);
  font-weight: bold;
  padding: 5px 0;
  position: relative;
  white-space: nowrap;
}

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

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

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

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

.hamburger-menu .bar {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-main-color);
  border-radius: 2px;
  margin: 5px 0;
  transition: all 0.3s ease;
}

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

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

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

.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden on desktop by default */
  min-height: 48px;
  width: 100%;
  background-color: var(--background-color); /* Match header-top */
  padding: 0 20px; /* Desktop padding, will be overridden by mobile */
}

.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; /* Below menu, above content */
  transition: opacity 0.3s ease;
  opacity: 0;
}

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

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

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

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

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

.footer-description {
  margin-top: 10px;
  line-height: 1.8;
  color: rgba(255, 243, 230, 0.8);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.footer-heading {
  font-size: 18px;
  color: var(--secondary-color);
  margin-bottom: 20px;
  text-transform: uppercase;
}

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

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

.footer-nav a {
  color: rgba(255, 243, 230, 0.8);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  margin-top: 20px;
  color: rgba(255, 243, 230, 0.6);
}

/* Dynamic slot anchor styles - keep visible */
.footer-slot-anchor-inner {
  min-height: 1px; /* Ensure visibility */
  display: block;
}

/* Responsive styles */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px;
  }

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

  /* Mobile header-top adjustments */
  .header-top {
    min-height: 60px !important;
    height: 60px !important;
  }

  .header-container {
    padding: 0 15px;
    width: 100%;
    max-width: none;
    justify-content: space-between;
    position: relative; /* For text logo centering */
  }

  .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); /* Account for hamburger menu width */
  }
  
  .logo img {
    display: block !important;
    max-width: 100%;
    height: auto;
    max-height: 56px !important;
    position: static;
    transform: none;
  }

  .hamburger-menu {
    display: block; /* Show hamburger menu on mobile */
    order: -1; /* Place it at the beginning */
    z-index: 1002; /* Ensure it's above the logo if positioned absolutely */
  }

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

  /* Mobile-specific buttons */
  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons */
    min-height: 48px;
    align-items: center;
    justify-content: center; /* Center buttons if only one */
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap; /* Ensure buttons stay in one line */
    background-color: var(--background-color); /* Match header-top */
  }

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

  /* Mobile main navigation (hidden by default) */
  .main-nav {
    display: none; /* Hidden by default, toggled by JS */
    position: fixed;
    top: var(--header-offset); /* Position below fixed header */
    left: 0;
    width: 80vw; /* Adjust width as needed */
    height: calc(100vh - var(--header-offset)); /* Full height below header */
    background-color: var(--card-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 0;
    transform: translateX(-100%); /* Slide out from left */
    transition: transform 0.3s ease;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    z-index: 1001; /* Above overlay */
    overflow-y: auto; /* Enable scrolling for long menus */
    min-height: 48px !important; /* Override fixed height for menu area */
    height: auto !important; /* Allow menu to expand */
  }

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

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 15px;
    width: 100%;
    max-width: none; /* Ensure it takes full width */
    gap: 15px; /* Spacing between nav links in column */
  }

  .nav-link {
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 243, 230, 0.1);
  }

  .nav-link:last-child {
    border-bottom: none;
  }
  
  .nav-link::after {
    display: none; /* Hide hover underline on mobile menu */
  }

  /* Footer responsive */
  .site-footer {
    padding: 30px 15px 15px;
  }

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

  .footer-col {
    padding: 0;
  }

  .footer-heading {
    margin-bottom: 15px;
  }

  .footer-bottom {
    padding-top: 15px;
  }

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

/* Ensure no-scroll works */
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;
  }
}