:root {
  --header-offset: 122px;
  --color-primary: #F2C14E;
  --color-secondary: #FFD36B;
  --color-button-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  --color-card-bg: #111111;
  --color-background: #0A0A0A;
  --color-text-main: #FFF6D6;
  --color-border: #3A2A12;
  --color-glow: #FFD36B;
}

body {
  padding-top: var(--header-offset);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  color: var(--color-text-main);
  background-color: var(--color-background);
}

/* 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, 0.5);
  background-color: var(--color-background); /* Fallback, specific sections will override */
}

.header-top {
  box-sizing: border-box;
  min-height: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-background); /* Darker background for top bar */
  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 {
  font-size: 28px;
  font-weight: bold;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  height: 100%;
}

.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 {
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #0A0A0A;
  background: var(--color-button-gradient);
  border: none;
  box-shadow: 0 0 8px var(--color-glow);
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 0 12px var(--color-glow);
}

.hamburger-menu {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1002;
}

.hamburger-icon {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  position: relative;
  transition: background-color 0.3s ease;
}

.hamburger-icon::before,
.hamburger-icon::after {
  content: '';
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  position: absolute;
  transition: transform 0.3s ease, top 0.3s ease;
}

.hamburger-icon::before {
  top: -8px;
}

.hamburger-icon::after {
  top: 8px;
}

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

.hamburger-menu.active .hamburger-icon::before {
  transform: rotate(45deg);
  top: 0;
}

.hamburger-menu.active .hamburger-icon::after {
  transform: rotate(-45deg);
  top: 0;
}

.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden on desktop */
  min-height: 48px;
  width: 100%;
  background-color: var(--color-card-bg); /* A different dark background */
  padding: 8px 20px;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

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

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

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

.nav-link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width 0.3s ease;
}

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

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

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

/* Footer Styles */
.site-footer {
  background-color: var(--color-background);
  color: var(--color-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;
}

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

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

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

.footer-col ul li a {
  color: var(--color-text-main);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

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

.footer-description {
  line-height: 1.6;
  margin-bottom: 15px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-bottom p {
  margin: 0;
  line-height: 1.5;
}

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

  body {
    overflow-x: hidden;
  }

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

  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }

  .header-top {
    min-height: 60px !important;
    height: 60px !important;
    padding: 0 15px; /* Adjust padding for mobile */
  }

  .header-container {
    width: 100%;
    max-width: none;
    padding: 0;
    justify-content: space-between;
    position: relative;
  }

  .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%);
    width: auto;
    max-width: calc(100% - 100px); /* Space for hamburger */
  }

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

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

  .hamburger-menu {
    display: flex;
    order: -1;
    margin-right: auto;
    padding: 0;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
  }

  .mobile-nav-buttons {
    display: flex !important;
    min-height: 48px;
    padding: 8px 15px;
    flex-wrap: nowrap;
    overflow: hidden;
    max-width: 100%;
  }

  .mobile-nav-buttons .btn {
    flex: 1;
    min-width: 0;
    max-width: calc(50% - 5px);
    padding: 8px 12px;
    font-size: 13px;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .main-nav {
    display: none;
    flex-direction: column;
    position: fixed;
    top: var(--header-offset);
    left: 0;
    width: 80%;
    max-width: 300px;
    height: calc(100% - var(--header-offset));
    background-color: var(--color-card-bg);
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    z-index: 1001;
    overflow-y: auto;
    padding: 20px 0;
  }

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

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 20px;
    width: 100%;
    height: auto;
    gap: 0;
  }

  .nav-link {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
  }
  .nav-link:last-child {
      border-bottom: none;
  }
  .nav-link::after {
      display: none;
  }

  .site-footer {
    padding: 30px 15px 15px;
  }

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

  .footer-col h3 {
    font-size: 16px;
    margin-bottom: 10px;
  }

  .footer-logo {
    font-size: 24px;
    margin-bottom: 10px;
  }

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