html { scroll-behavior: smooth; }
body { margin: 0; font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; padding-top: var(--header-offset); overflow-x: hidden; }
:root { --header-offset: 122px; }

.site-header { position: fixed; top: 0; left: 0; right: 0; width: 100%; z-index: 1000; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }

.header-top { box-sizing: border-box; min-height: 68px; height: 68px; display: flex; align-items: center; overflow: hidden; background-color: #017439; width: 100%; color: #fff; }
.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; position: relative; }
.logo { font-size: 28px; font-weight: bold; color: #FFFFFF; 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: 12px; align-items: center; }
.btn { display: inline-block; padding: 10px 18px; border-radius: 25px; text-decoration: none; font-weight: bold; transition: all 0.3s ease; white-space: nowrap; text-align: center; cursor: pointer; border: none; }
.btn-register { background-color: #C30808; color: #FFFF00; }
.btn-login { background-color: #C30808; color: #FFFF00; }
.btn:hover { opacity: 0.9; transform: translateY(-1px); }

.hamburger-menu { display: none; background: none; border: none; cursor: pointer; padding: 0; width: 30px; height: 24px; position: relative; z-index: 1001; }
.hamburger-menu span { display: block; height: 3px; background-color: #FFFFFF; border-radius: 2px; margin-bottom: 5px; transition: all 0.3s ease; }
.hamburger-menu span:last-child { margin-bottom: 0; }
.hamburger-menu.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger-menu.active span:nth-child(2) { opacity: 0; }
.hamburger-menu.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.mobile-nav-buttons { box-sizing: border-box; display: none; min-height: 48px; background-color: #F8F8F8; border-bottom: 1px solid #eee; }

.main-nav { box-sizing: border-box; min-height: 52px; height: 52px; display: flex; align-items: center; overflow: hidden; background-color: #F5F5F5; 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-menu { list-style: none; margin: 0; padding: 0; display: flex; gap: 25px; }
.nav-menu li a { color: #333; text-decoration: none; font-weight: bold; padding: 10px 0; transition: color 0.3s ease; white-space: nowrap; }
.nav-menu li a:hover, .nav-menu li a.active { color: #017439; }

.overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(0,0,0,0.5); z-index: 999; }

/* Footer Styles */
.site-footer { background-color: #017439; color: #FFFFFF; padding: 40px 20px 20px; font-size: 14px; position: relative; }
.footer-top-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; max-width: 1200px; margin: 0 auto 30px; }
.footer-col h3 { color: #FFFFFF; font-size: 18px; margin-bottom: 15px; }
.footer-logo { font-size: 24px; font-weight: bold; color: #FFFFFF; text-decoration: none; display: block; margin-bottom: 15px; }
.footer-description { margin-bottom: 20px; word-wrap: break-word; overflow-wrap: break-word; }
.footer-nav { list-style: none; padding: 0; margin: 0; }
.footer-nav li { margin-bottom: 10px; }
.footer-nav li a { color: #FFFFFF; text-decoration: none; transition: color 0.3s ease; }
.footer-nav li a:hover { color: #FFFF00; }

.footer-legal-section { max-width: 1200px; margin: 20px auto; padding-top: 15px; border-top: 1px solid rgba(255,255,255,0.2); }
.footer-legal-nav { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; }
.footer-legal-nav li a { color: #FFFFFF; text-decoration: none; transition: color 0.3s ease; }
.footer-legal-nav li a:hover { color: #FFFF00; }

.footer-bottom { max-width: 1200px; margin: 0 auto; text-align: center; padding-top: 15px; border-top: 1px solid rgba(255,255,255,0.2); font-size: 13px; }
.footer-bottom p { margin: 0; }

.footer-slot-anchor-inner { min-height: 1px; }

@media (max-width: 1024px) {
  .footer-top-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-col:nth-child(3), .footer-col:nth-child(4) { grid-column: span 1; }
}

/* 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 { min-height: 60px !important; height: 60px !important; }
  .header-container { padding-left: 15px; padding-right: 15px; width: 100%; max-width: none; }
  .logo { font-size: 24px; position: absolute !important; left: 50% !important; transform: translateX(-50%) !important; display: block !important; max-width: calc(100% - 100px); text-align: center; }
  .logo img { max-height: 56px !important; }

  .desktop-nav-buttons { display: none !important; }
  .mobile-nav-buttons { display: flex !important; min-height: 48px; align-items: center; width: 100%; max-width: 100%; box-sizing: border-box; padding-left: 15px; padding-right: 15px; overflow: hidden; gap: 10px; flex-wrap: nowrap; background-color: #F8F8F8; border-bottom: 1px solid #eee; }
  .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; }

  .hamburger-menu { display: block; position: relative; z-index: 1001; }

  .main-nav { display: none; flex-direction: column; position: fixed; top: var(--header-offset); left: 0; width: 280px; height: calc(100% - var(--header-offset)); background-color: #FFFFFF; box-shadow: 2px 0 5px rgba(0,0,0,0.2); transform: translateX(-100%); transition: transform 0.3s ease; overflow-y: auto; }
  .main-nav.active { display: flex; transform: translateX(0); }
  .nav-container { padding: 20px 0; width: 100%; max-width: none; height: auto; }
  .nav-menu { flex-direction: column; gap: 0; width: 100%; }
  .nav-menu li { border-bottom: 1px solid #eee; }
  .nav-menu li:last-child { border-bottom: none; }
  .nav-menu li a { padding: 15px 20px; display: block; color: #333; }
  .nav-menu li a:hover, .nav-menu li a.active { background-color: #f5f5f5; color: #017439; }

  .footer-top-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-col { text-align: center; }
  .footer-col h3 { text-align: center; }
  .footer-nav { text-align: center; }
  .footer-legal-nav { flex-direction: column; }
}

@media (max-width: 480px) {
  .footer-top-grid { grid-template-columns: 1fr; }
}
/* 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;
}