:root {
  --primary-color: #F2C14E;
  --secondary-color: #FFD36B;
  --card-bg: #111111;
  --bg-color: #0A0A0A;
  --text-main: #FFF6D6;
  --border-color: #3A2A12;
  --glow-color: #FFD36B;
  --header-offset: 122px; /* Desktop: 68px (top-bar) + 52px (main-nav) + 2px buffer */
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg-color);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  min-height: 60px; /* Ensure content adaptation */
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 15px 30px;
  min-height: 52px; /* Main nav height */
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 20px;
}

.main-nav {
  flex: 1;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 25px;
}

.nav-link {
  color: var(--text-main);
  text-decoration: none;
  padding: 10px 0;
  transition: color 0.3s ease;
  white-space: nowrap;
}

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

.desktop-nav-buttons {
  display: flex;
  gap: 10px;
  margin-left: auto;
  flex-shrink: 0;
}

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

.hamburger-menu {
  display: none; /* Hidden on desktop */
  font-size: 24px;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  z-index: 1001;
  padding: 5px;
  line-height: 1;
}

.btn {
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  white-space: nowrap;
  border: none;
  cursor: pointer;
}

.btn-login, .btn-register {
  background: linear-gradient(180deg, var(--secondary-color) 0%, #DDA11D 100%);
  color: var(--card-bg); /* Dark text for bright button */
}

.btn:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 8px var(--glow-color);
}

.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: 998;
  transition: opacity 0.3s ease;
  opacity: 0;
}

.mobile-menu-overlay.active {
  display: block;
  opacity: 1;
}

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

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

.footer-col h3 {
  color: var(--primary-color);
  font-size: 18px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.footer-logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  display: block;
  margin-bottom: 15px;
}

.footer-description {
  font-size: 14px;
  line-height: 1.6;
  margin-top: 15px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.footer-nav a {
  color: var(--text-main);
  text-decoration: none;
  display: block;
  margin-bottom: 8px;
  transition: color 0.3s ease;
  font-size: 14px;
}

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

.footer-col p {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 10px;
}

.footer-bottom {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-main);
}

.footer-slot-anchor-inner {
  min-height: 10px;
  margin-top: 10px;
}

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

  .site-header {
    min-height: 48px;
  }

  .header-container {
    width: 100%;
    max-width: none; /* Crucial for mobile full width */
    padding: 10px 15px;
    justify-content: space-between;
    min-height: 48px;
  }

  .hamburger-menu {
    display: block; /* Visible on mobile */
    margin-right: 10px;
  }

  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    margin-right: 0;
    font-size: 24px;
  }

  .logo img {
    display: block !important;
    max-width: 100%;
    height: auto;
    max-height: 40px;
  }

  .main-nav {
    display: none; /* Hidden by default */
    position: fixed;
    top: var(--header-offset);
    left: 0;
    width: 70%;
    max-width: 300px;
    height: calc(100% - var(--header-offset));
    background-color: var(--card-bg);
    flex-direction: column;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.4);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 999;
    overflow-y: auto;
    align-items: flex-start;
  }

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

  .nav-link {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
  }

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

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

  .mobile-nav-buttons {
    display: flex !important; /* Visible on mobile */
    gap: 8px;
    margin-left: 10px;
    flex-shrink: 0;
  }

  /* Footer Mobile */
  .footer-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .footer-col h3 {
    text-align: center;
  }

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

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

  .footer-logo {
    margin-left: auto;
    margin-right: auto;
  }

  /* Mobile Content Overflow Fix */
  .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;
  }
}