:root {
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --card-bg: #17191F;
  --background-color: #0D0E12;
  --text-main: #FFF3E6;
  --border-color: #A84F0C;
  --glow-color: #FFB04D;
  --deep-orange: #D96800;
  --header-offset: 122px; /* Desktop: 68px (header-top) + 52px (main-nav) = 120px, +2px for safety */
}

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

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

a:hover {
  text-decoration: underline;
}

/* Header Styles */
.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;
  background-color: var(--card-bg); /* Darker background for header-top */
  color: var(--text-main);
  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 30px; /* Padding for logo and buttons */
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  height: 100%;
}

.logo:hover {
  text-decoration: none;
  color: var(--secondary-color);
}

.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 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange) 100%);
  color: var(--text-main);
  font-weight: bold;
  font-size: 16px;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.btn:hover {
  background: linear-gradient(180deg, var(--glow-color) 0%, var(--deep-orange) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
  text-decoration: none;
}

.main-nav {
  box-sizing: border-box;
  min-height: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  background-color: var(--primary-color); /* Lighter background for main-nav */
  overflow: hidden;
  width: 100%;
  transition: transform 0.3s ease-out;
}

.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 nav links */
}

.nav-link {
  color: var(--text-main);
  font-weight: bold;
  font-size: 15px;
  padding: 5px 0;
  white-space: nowrap;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--card-bg);
  text-decoration: none;
}

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

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-main);
  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-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden on desktop, shown on mobile */
  min-height: 48px;
}

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

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

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

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

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

.footer-col p {
  line-height: 1.6;
  color: var(--text-main);
  word-wrap: break-word; /* Ensure description wraps */
  overflow-wrap: break-word;
}

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

.footer-logo:hover {
  color: var(--primary-color);
  text-decoration: none;
}

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

.footer-nav li {
  margin-bottom: 8px;
}

.footer-nav a {
  color: var(--text-main);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  max-width: 1200px;
  margin: 0 auto;
  color: var(--text-main);
}

.footer-bottom p {
  margin: 0;
}

/* Dynamic slot anchor inner container styles */
.footer-slot-anchor-inner {
  min-height: 10px; /* Ensure visibility for system injection */
  width: 100%;
}

/* Media Queries for Mobile */
@media (max-width: 768px) {
  :root {
    --header-offset: 110px; /* Mobile: 60px (header-top) + 48px (mobile-nav-buttons) + 48px (main-nav, though its padding-top will use the total offset) */
  }

  body {
    padding-top: var(--header-offset);
    overflow-x: hidden; /* Prevent horizontal scroll on body */
  }

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

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

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

  .logo img {
    max-height: 56px !important;
    max-width: 100%;
    height: auto;
  }

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

  .hamburger-menu {
    display: flex;
    margin-right: auto; /* Push hamburger to left */
    z-index: 1002; /* Ensure hamburger is above logo for interaction */
  }

  .main-nav {
    height: 100vh; /* Full viewport height for mobile menu */
    width: 280px; /* Width of the mobile menu */
    position: fixed;
    top: 0;
    left: 0;
    transform: translateX(-100%); /* Hidden by default */
    background-color: var(--card-bg); /* Darker background for mobile menu */
    flex-direction: column;
    justify-content: flex-start;
    padding-top: var(--header-offset); /* Push content below fixed header */
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.3);
    overflow-y: auto; /* Enable scrolling for long menus */
    display: none; /* Hidden by default, shown by JS */
  }

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

  .nav-container {
    width: 100%;
    max-width: none;
    flex-direction: column;
    padding: 20px 15px;
    align-items: flex-start;
    gap: 15px;
    height: auto; /* Allow content to dictate height */
  }

  .nav-link {
    width: 100%;
    padding: 10px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .mobile-nav-buttons {
    display: flex !important; /* Always visible on mobile */
    min-height: 48px;
    align-items: center;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px; /* Padding for buttons */
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap; /* Ensure buttons stay in one line */
    background-color: var(--background-color); /* Match body background */
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
  }

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

  /* Footer Mobile Styles */
  .footer-top-grid {
    grid-template-columns: 1fr; /* Single column layout */
    gap: 20px;
    padding-bottom: 20px;
  }

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

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

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

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

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