:root {
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --button-gradient: linear-gradient(180deg, #FFA53A 0%, #D96800 100%);
  --card-bg-color: #17191F;
  --body-bg-color: #0D0E12;
  --text-main-color: #FFF3E6;
  --border-color: #A84F0C;
  --glow-color: #FFB04D;
  --deep-orange-color: #D96800;

  /* Header offset for desktop */
  --header-offset: 122px;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding-top: var(--header-offset); /* Account for fixed header */
  background-color: var(--body-bg-color);
  color: var(--text-main-color);
  line-height: 1.6;
  overflow-x: hidden; /* Prevent horizontal scroll from body */
}

/* Base styles for links */
a {
  text-decoration: none;
  color: var(--text-main-color);
  transition: color 0.3s ease;
}

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

/* Button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  background: var(--button-gradient);
  color: var(--text-main-color);
  font-weight: bold;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3), 0 0 15px var(--glow-color);
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4), 0 0 20px var(--glow-color);
  color: var(--text-main-color); /* Ensure text color doesn't change on hover */
}

/* Header styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  background-color: var(--card-bg-color); /* Default background for header */
}

.header-top {
  box-sizing: border-box;
  min-height: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--card-bg-color); /* Distinct background */
  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 20px;
}

.logo {
  display: block;
  font-size: 28px;
  font-weight: bold;
  color: var(--text-main-color);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0; /* Logo padding handled by container */
  white-space: nowrap;
}

.logo:hover {
  color: var(--primary-color);
}

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

/* Mobile navigation buttons (hidden by default on desktop) */
.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden on desktop */
  min-height: 48px; /* Placeholder height, actual content sets height */
  background-color: var(--body-bg-color); /* Matches body background */
  width: 100%;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
}

.main-nav {
  box-sizing: border-box;
  min-height: 52px;
  height: 52px;
  display: flex; /* Display on desktop */
  align-items: center;
  overflow: hidden;
  background-color: var(--primary-color); /* Distinct background for main nav */
  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 nav links */
}

.nav-link {
  font-size: 16px;
  font-weight: bold;
  padding: 5px 0;
  white-space: nowrap;
  color: var(--text-main-color);
}

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

/* Hamburger menu for mobile */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  width: 30px;
  height: 24px;
  position: relative;
  cursor: pointer;
  z-index: 1002; /* Above other header elements */
  margin-right: 15px; /* Spacing from logo */
}

.hamburger-menu span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-main-color);
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.hamburger-menu span:nth-child(1) { top: 0; }
.hamburger-menu span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.hamburger-menu span:nth-child(3) { top: 100%; transform: translateY(-100%); }

.hamburger-menu.active span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.hamburger-menu.active span:nth-child(2) { opacity: 0; }
.hamburger-menu.active span:nth-child(3) { top: 50%; transform: translateY(-50%) rotate(-45deg); }

/* 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;
}

/* Footer styles */
.site-footer {
  background-color: var(--card-bg-color);
  color: var(--text-main-color);
  padding: 40px 0 20px;
  border-top: 1px solid var(--border-color);
}

.footer-slot-anchor-top {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: 1px; /* To ensure it takes up space if needed */
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

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

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

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

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

.footer-description {
  font-size: 14px;
  line-height: 1.8;
  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: 8px;
}

.footer-nav a {
  font-size: 14px;
  color: var(--text-main-color);
}

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

/* Ensure dynamic slot anchor inner is visible */
.footer-slot-anchor-inner {
  min-height: 1px; /* Ensure it's not completely collapsed */
  width: 100%;
}

.footer-mid-slots,
.footer-mid-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: 1px; /* Ensure it takes up space if needed */
}

.footer-bottom {
  text-align: center;
  font-size: 13px;
  color: var(--text-main-color);
  margin-top: 30px;
  padding: 15px 20px 0;
  border-top: 1px solid var(--border-color);
}

.footer-bottom p {
  margin: 0;
}

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

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

  .site-header {
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  }

  .header-top {
    min-height: 60px;
    height: 60px;
    padding: 0 15px; /* Smaller padding for mobile */
    justify-content: space-between; /* Hamburger left, Logo centered */
  }

  .header-container {
    padding: 0; /* Remove container padding as header-top has it */
    position: relative; /* For absolute logo positioning if needed */
    justify-content: flex-start; /* Align hamburger to start */
  }

  .hamburger-menu {
    display: block; /* Show hamburger on mobile */
    order: -1; /* Place it first */
    margin-right: 0; /* Remove extra margin if flex handles spacing */
  }

  /* Image LOGO centering for mobile (using absolute positioning for robustness) */
  .logo {
    position: absolute !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    max-width: calc(100% - 100px); /* Adjust max-width to not overlap hamburger/buttons */
    font-size: 24px; /* Smaller font for mobile logo */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

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

  /* Show mobile buttons on mobile */
  .mobile-nav-buttons {
    display: flex !important; /* Show on mobile */
    min-height: 48px;
    align-items: center;
    justify-content: center; /* Center buttons */
    width: 100%; max-width: 100%;
    box-sizing: border-box;
    padding: 8px 15px;
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap;
    background-color: var(--body-bg-color);
    border-bottom: 1px solid var(--border-color);
  }

  .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;
    word-wrap: break-word;
    overflow-wrap: break-word;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2); /* Lighter shadow for mobile */
  }

  .main-nav {
    display: none; /* Hidden by default on mobile */
    position: fixed; /* Fixed position for mobile menu */
    top: var(--header-offset); /* Start below the fixed header + mobile buttons */
    left: 0;
    width: 280px; /* Width of the mobile menu */
    height: calc(100% - var(--header-offset));
    background-color: var(--card-bg-color); /* Menu background */
    flex-direction: column; /* Vertical menu */
    transform: translateX(-100%); /* Slide out from left */
    transition: transform 0.3s ease-out;
    box-shadow: 4px 0 10px rgba(0, 0, 0, 0.4);
    z-index: 1001; /* Above overlay */
    overflow-y: auto; /* Enable scrolling for long menus */
    padding-bottom: 20px; /* Space at bottom for scrolling */
  }

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

  .nav-container {
    flex-direction: column; /* Vertical menu items */
    padding: 20px 0;
    align-items: flex-start; /* Align menu items to the left */
    gap: 15px;
    width: 100%;
    max-width: none; /* Remove max-width for mobile container */
  }

  .nav-link {
    width: 100%;
    padding: 10px 20px;
    font-size: 16px;
    color: var(--text-main-color);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .overlay.active {
    display: block; /* Show overlay when menu is active */
  }

  /* Footer mobile adjustments */
  .footer-grid {
    grid-template-columns: 1fr; /* Single column on mobile */
    padding: 20px 15px;
  }

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

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

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

  .footer-logo {
    font-size: 20px;
  }

  .footer-description {
    font-size: 13px;
  }

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