:root {
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --button-gradient: linear-gradient(180deg, #FFA53A 0%, #D96800 100%);
  --card-bg: #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 {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--text-main-color);
  background-color: var(--background-color);
  padding-top: var(--header-offset);
  overflow-x: hidden;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.header-top {
  box-sizing: border-box;
  min-height: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--deep-orange-color);
  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-left: 20px;
  padding-right: 20px;
}

.logo {
  color: var(--text-main-color);
  font-size: 24px;
  font-weight: bold;
  text-decoration: none;
  display: block; /* Ensure visibility */
}

.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;
}

.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden by default on desktop */
  min-height: 48px;
  background-color: var(--card-bg);
  width: 100%;
}

.btn {
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  color: var(--text-main-color);
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.2s ease;
  background: var(--button-gradient);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.hamburger-menu {
  display: none; /* Hidden by default on desktop */
  width: 30px;
  height: 24px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 1002;
  padding: 0;
}

.hamburger-icon {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-main-color);
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  transition: background-color 0.3s ease;
}

.hamburger-icon::before, .hamburger-icon::after {
  content: '';
  width: 100%;
  height: 3px;
  background-color: var(--text-main-color);
  position: absolute;
  left: 0;
  transition: transform 0.3s ease;
}

.hamburger-icon::before {
  top: -9px;
}

.hamburger-icon::after {
  top: 9px;
}

.hamburger-menu.active .hamburger-icon {
  background-color: transparent;
}

.hamburger-menu.active .hamburger-icon::before {
  transform: translateY(9px) rotate(45deg);
}

.hamburger-menu.active .hamburger-icon::after {
  transform: translateY(-9px) rotate(-45deg);
}

.main-nav {
  box-sizing: border-box;
  min-height: 52px;
  height: 52px;
  display: flex; /* Desktop default */
  align-items: center;
  overflow: hidden;
  background-color: var(--primary-color);
  width: 100%;
  position: static; /* Desktop default */
  flex-direction: row; /* Desktop default */
}

.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: 20px;
}

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

.nav-link:hover {
  color: var(--deep-orange-color);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 999;
  display: none; /* Hidden by default */
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.site-footer {
  background-color: var(--background-color);
  color: var(--text-main-color);
  padding: 40px 20px 20px;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

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

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

.footer-logo {
  color: var(--text-main-color);
  font-size: 22px;
  font-weight: bold;
  text-decoration: none;
  margin-bottom: 15px;
  display: block;
}

.footer-description {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-main-color);
  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;
  font-size: 14px;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-main-color);
}

.footer-bottom p {
  margin: 0;
}

.footer-slot-anchor-inner {
  /* This class is for dynamic content injection, should not be styled directly */
}

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

  .header-top {
    min-height: 60px !important;
    height: 60px !important;
  }

  .header-container {
    width: 100%;
    max-width: none;
    padding-left: 15px;
    padding-right: 15px;
    position: relative;
  }

  .logo {
    flex: 1 !important; /* For centering with flex */
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    font-size: 20px;
  }

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

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

  .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;
    gap: 10px;
    flex-wrap: nowrap;
    justify-content: center;
  }

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

  .hamburger-menu {
    display: block;
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
  }

  .main-nav {
    min-height: 48px !important;
    height: auto; /* Allow content to dictate height */
    position: fixed; /* Fixed for mobile menu */
    top: var(--header-offset); /* Below the header-top and mobile buttons */
    left: 0;
    width: 70%; /* Adjust as needed */
    max-width: 300px;
    height: calc(100vh - var(--header-offset)); /* Full height below header */
    background-color: var(--card-bg); /* Use a darker background for the menu */
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 20px;
    transform: translateX(-100%); /* Hidden by default */
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 1001;
    display: none; /* Hidden by default, shown with JS 'active' class */
  }

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

  .nav-container {
    width: 100%;
    max-width: none;
    padding: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .nav-link {
    width: 100%;
    padding: 12px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

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

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .footer-col:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
  }

  .footer-nav {
    margin-top: 15px;
  }

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

  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;
  }
}