:root { --header-offset: 122px; --primary-color: #FF8C1A; --accent-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; }

body { margin: 0; font-family: 'Arial', sans-serif; background-color: var(--background-color); color: var(--text-main-color); padding-top: var(--header-offset); overflow-x: hidden; }

/* Site Header */
.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);
  background-color: var(--background-color); /* Overall header background */
  box-sizing: border-box;
}

.header-top {
  box-sizing: border-box;
  height: 68px;
  display: flex;
  align-items: center;
  background-color: var(--card-bg); /* Distinct background for top bar */
  width: 100%;
  overflow: hidden;
}

.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: 24px;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  display: block;
  white-space: nowrap;
}

.logo img {
  display: block;
  max-height: 60px;
  height: auto;
  width: auto;
  max-width: 280px;
  object-fit: contain;
}

.desktop-nav-buttons {
  display: flex;
  gap: 10px;
}

.btn {
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  color: var(--text-main-color);
  font-weight: bold;
  background: var(--button-gradient);
  transition: background 0.3s ease;
  white-space: nowrap;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn:hover {
  opacity: 0.9;
}

.main-nav {
  box-sizing: border-box;
  height: 52px;
  display: flex;
  align-items: center;
  background-color: var(--primary-color); /* Distinct background for main nav */
  width: 100%;
  overflow: hidden;
}

.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;
}

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

.nav-link:hover, .nav-link.active {
  background-color: rgba(0,0,0,0.1);
  border-radius: 3px;
}

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

.hamburger-menu .bar {
  width: 100%;
  height: 3px;
  background-color: var(--text-main-color);
  transition: all 0.3s ease;
}

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

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

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Site Footer */
.site-footer {
  background-color: var(--background-color);
  color: var(--text-main-color);
  padding: 40px 20px;
  font-size: 14px;
  line-height: 1.6;
  box-sizing: border-box;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto 30px auto;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.footer-col h3 {
  color: var(--glow-color);
  font-size: 16px;
  margin-bottom: 15px;
  text-transform: uppercase;
}

.footer-logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  display: block;
  margin-bottom: 10px;
}

.footer-description {
  font-size: 14px;
  line-height: 1.6;
  margin-top: 10px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

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

.footer-nav li a {
  color: var(--text-main-color);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.8;
  transition: color 0.3s ease;
}

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

.footer-col.footer-dynamic-col .footer-slot-anchor-inner {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 5px;
}

.footer-dynamic-row .footer-slot-anchor-inner {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 0;
}

.footer-bottom {
  text-align: center;
  font-size: 13px;
  color: var(--text-main-color);
  padding-top: 20px;
  margin-top: 20px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* Mobile 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 {
    height: 60px;
    padding: 0 15px;
  }

  .header-container {
    padding: 0;
    justify-content: space-between;
    position: relative;
  }

  .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 80px); /* Leave space for hamburger */
  }

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

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

  .hamburger-menu {
    display: flex;
    z-index: 1002; /* Above logo */
    position: relative;
    left: 0;
  }

  .hamburger-menu.active .bar:nth-child(1) { transform: translateY(11px) rotate(45deg); }
  .hamburger-menu.active .bar:nth-child(2) { opacity: 0; }
  .hamburger-menu.active .bar:nth-child(3) { transform: translateY(-11px) rotate(-45deg); }

  .mobile-nav-buttons {
    display: flex !important;
    min-height: 48px;
    height: 48px; /* Fixed height for consistency */
    align-items: center;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap;
    background-color: var(--background-color); /* Match overall header background */
    position: fixed;
    top: 60px; /* Below header-top */
    left: 0;
    right: 0;
    z-index: 1000;
    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);
    box-sizing: border-box;
    padding: 8px 12px;
    font-size: 13px;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .main-nav {
    display: none; /* Hidden by default */
    flex-direction: column;
    position: fixed;
    top: 0; /* Will be adjusted by JS to be below fixed header */
    left: 0;
    width: 80%; /* Adjust as needed */
    height: 100%;
    background-color: var(--card-bg); /* Mobile menu background */
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1001;
    padding-top: 108px; /* To push content below header-top + mobile-nav-buttons */
    overflow-y: auto;
  }

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

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
    height: auto;
    max-width: none;
  }

  .nav-link {
    width: 100%;
    padding: 12px 15px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: var(--text-main-color);
  }

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

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-dynamic-row .footer-slot-anchor-inner {
    padding: 10px 0;
  }
}
/* 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;
  }
}