:root {
  --header-offset: 122px;
  --primary-color: #017439;
  --secondary-color: #FFFFFF;
  --button-color-register: #C30808;
  --button-color-login: #C30808;
  --button-text-color: #FFFF00;
  --header-top-bg: var(--primary-color);
  --main-nav-bg: #02A04E; /* A distinct lighter green */
  --footer-bg: #1a1a1a; /* Dark grey for footer */
  --footer-text-color: var(--secondary-color);
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  padding-top: var(--header-offset);
  overflow-x: hidden; /* Mobile content overflow protection */
}

body.no-scroll {
  overflow: hidden;
}

/* 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);
  background-color: var(--header-top-bg); /* Default background for entire header */
}

.header-top {
  box-sizing: border-box;
  min-height: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--header-top-bg);
  width: 100%;
  color: var(--secondary-color);
}

.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-left: 20px;
  padding-right: 20px;
}

.site-header .logo,
.site-footer .footer-logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--secondary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0;
  margin: 0;
}

.site-header .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;
}

.mobile-nav-buttons {
  box-sizing: border-box;
  display: none; /* Hidden by default on desktop */
  min-height: 48px;
  background-color: var(--header-top-bg);
  width: 100%;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
  box-sizing: border-box;
  font-size: 14px;
}

.btn-register {
  background-color: var(--button-color-register);
  color: var(--button-text-color);
  border: 1px solid var(--button-color-register);
}

.btn-register:hover {
  background-color: #A30606; /* Darken for hover */
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-login {
  background-color: var(--button-color-login);
  color: var(--button-text-color);
  border: 1px solid var(--button-color-login);
}

.btn-login:hover {
  background-color: #A30606; /* Darken for hover */
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.main-nav {
  box-sizing: border-box;
  min-height: 52px;
  height: 52px;
  display: flex; /* Default to flex for desktop */
  align-items: center;
  overflow: hidden;
  background-color: var(--main-nav-bg);
  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;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 25px; /* Spacing between desktop nav items */
}

.nav-links li a {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: bold;
  padding: 5px 0;
  transition: color 0.3s ease;
  white-space: nowrap;
  font-size: 15px;
}

.nav-links li a:hover {
  color: #FFD700; /* Gold color on hover for navigation */
}

/* Hamburger Menu (Desktop hidden) */
.hamburger-menu {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  position: relative;
  z-index: 1002;
}

.hamburger-menu .bar {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--secondary-color);
  margin: 5px 0;
  transition: all 0.3s ease-in-out;
}

/* Overlay (Desktop hidden) */
.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;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

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

.site-footer a {
  color: var(--footer-text-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.site-footer a:hover {
  color: #FFD700; /* Gold color on hover for footer links */
}

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

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

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col .footer-logo {
  font-size: 26px;
  margin-bottom: 15px;
  display: block;
  color: var(--secondary-color);
}

.footer-col .footer-description {
  margin-top: 0;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 1200px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom p {
  margin: 0;
}

/* Slot Anchors - ensure they don't hide content */
.footer-slot-anchor-inner, .footer-slot-anchor {
  min-height: 0;
  min-width: 0;
  visibility: visible;
  opacity: 1;
  height: auto;
  max-height: none;
  overflow: visible;
}

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

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

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

  .header-container {
    width: 100%;
    max-width: none; /* No max-width on mobile */
    padding-left: 0; /* Handled by header-top padding */
    padding-right: 0; /* Handled by header-top padding */
    position: relative; /* For logo centering if needed */
  }

  .site-header .logo {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 100px); /* Adjust width to not overlap hamburger */
    height: 100%;
    z-index: 1;
  }

  .site-header .logo img {
    max-height: 56px !important; /* Smaller logo for mobile */
    max-width: 100%;
  }

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

  .mobile-nav-buttons {
    display: flex !important; /* Show mobile buttons */
    min-height: 48px;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap; /* Ensure buttons stay in one line */
    justify-content: center;
    align-items: center;
    background-color: var(--header-top-bg); /* Use header-top color */
  }

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

  .hamburger-menu {
    display: block; /* Show hamburger on mobile */
    position: relative;
    z-index: 2; /* Ensure it's above the logo for clickability */
  }

  .hamburger-menu.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .hamburger-menu.active .bar:nth-child(2) {
    opacity: 0;
  }

  .hamburger-menu.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .main-nav {
    display: none; /* Hidden by default for mobile */
    position: fixed;
    top: var(--header-offset); /* Position below fixed header */
    left: 0;
    width: 80%; /* Sidebar width */
    max-width: 300px; /* Max width for sidebar */
    height: calc(100% - var(--header-offset)); /* Full height below header */
    background-color: var(--main-nav-bg); /* Use main nav background color */
    flex-direction: column;
    transform: translateX(-100%); /* Slide out from left */
    transition: transform 0.3s ease;
    z-index: 1001;
    overflow-y: auto;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.2);
  }

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

  .nav-container {
    width: 100%;
    max-width: none; /* No max-width on mobile */
    padding: 20px 15px; /* Adjust padding */
    flex-direction: column;
    align-items: flex-start; /* Align menu items to start */
    height: auto; /* Allow content to dictate height */
  }

  .nav-links {
    flex-direction: column;
    gap: 15px; /* Spacing between mobile nav items */
    width: 100%;
  }

  .nav-links li a {
    padding: 10px 0;
    display: block;
    font-size: 16px;
  }

  /* Footer Mobile */
  .site-footer {
    padding-left: 15px;
    padding-right: 15px;
  }

  .footer-grid {
    grid-template-columns: 1fr; /* Single column layout for mobile */
    gap: 20px;
  }

  /* Mobile content area protection */
  .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;
  }
}
/* 内容保护（系统追加，请勿删除） */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
input, textarea, select, [contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}