html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, sans-serif; line-height: 1.6; color: #333333; padding-top: var(--header-offset); overflow-x: hidden; }
:root { --primary-color: #26A9E0; --secondary-color: #FFFFFF; --button-login-color: #EA7C07; --header-offset: 122px; }

/* Header Styles */
.site-header { position: fixed; top: 0; left: 0; right: 0; width: 100%; z-index: 1000; box-shadow: 0 2px 5px rgba(0,0,0,0.1); background-color: var(--secondary-color); }

.header-top { box-sizing: border-box; min-height: 68px; height: 68px; display: flex; align-items: center; overflow: hidden; background-color: var(--secondary-color); 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: 24px; font-weight: bold; color: var(--primary-color); text-decoration: none; display: flex; align-items: center; 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; }
.mobile-nav-buttons { box-sizing: border-box; display: none; min-height: 48px; width: 100%; background-color: var(--secondary-color); padding: 0 15px; border-top: 1px solid rgba(0,0,0,0.05); }

.btn { display: inline-block; padding: 10px 18px; border-radius: 5px; text-decoration: none; font-weight: bold; text-align: center; transition: background-color 0.3s ease, transform 0.2s ease; white-space: nowrap; cursor: pointer; border: none; }
.btn-primary { background-color: var(--button-login-color); color: var(--secondary-color); }
.btn-primary:hover { background-color: #d16b06; transform: translateY(-1px); }
.btn-secondary { background-color: var(--primary-color); color: var(--secondary-color); }
.btn-secondary:hover { background-color: #2087b3; transform: translateY(-1px); }

.main-nav { box-sizing: border-box; min-height: 52px; height: 52px; display: flex; align-items: center; overflow: hidden; background-color: var(--primary-color); 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-link { color: var(--secondary-color); text-decoration: none; padding: 0 15px; font-weight: bold; white-space: nowrap; transition: color 0.3s ease, background-color 0.3s ease; height: 100%; display: flex; align-items: center; }
.nav-link:hover { background-color: rgba(255,255,255,0.1); }

.hamburger-menu { display: none; cursor: pointer; padding: 10px; z-index: 1002; }
.hamburger-menu .bar { width: 25px; height: 3px; background-color: #333; margin: 5px 0; transition: 0.4s; }
.hamburger-menu.active .bar:nth-child(1) { transform: rotate(-45deg) translate(-5px, 6px); }
.hamburger-menu.active .bar:nth-child(2) { opacity: 0; }
.hamburger-menu.active .bar:nth-child(3) { transform: rotate(45deg) translate(-5px, -6px); }

.overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.5); z-index: 999; }

/* Footer Styles */
.site-footer { background-color: #333333; color: #f4f4f4; padding: 40px 20px 20px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; max-width: 1200px; margin: 0 auto 30px; }
.footer-col h3 { color: var(--primary-color); font-size: 16px; margin-bottom: 15px; }
.footer-col p { margin-bottom: 10px; word-wrap: break-word; overflow-wrap: break-word; }
.footer-logo { font-size: 20px; font-weight: bold; color: var(--secondary-color); text-decoration: none; display: block; margin-bottom: 15px; }
.footer-nav { list-style: none; padding: 0; margin: 0; }
.footer-nav li { margin-bottom: 8px; }
.footer-nav a { color: #f4f4f4; text-decoration: none; transition: color 0.3s ease; }
.footer-nav a:hover { color: var(--primary-color); }
.footer-bottom { text-align: center; margin-top: 30px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); }
.footer-bottom p { margin: 0; color: #cccccc; }
.footer-slot-anchor-inner { min-height: 1px; }

/* Mobile Specific Styles */
@media (max-width: 768px) {
  :root { --header-offset: 110px; }
  body { padding-top: var(--header-offset); 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 { width: 100%; max-width: none; padding: 0 15px; position: relative; }
  .logo { flex: 1 !important; display: flex !important; justify-content: center !important; align-items: center !important; max-width: calc(100% - 80px); /* Account for hamburger width */ }
  .logo img { max-height: 56px !important; }

  .desktop-nav-buttons { display: none !important; }
  .mobile-nav-buttons { display: flex !important; align-items: center; justify-content: center; gap: 10px; flex-wrap: nowrap; box-sizing: border-box; padding: 0 15px; }
  .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: absolute; left: 15px; top: 50%; transform: translateY(-50%); }
  .hamburger-menu .bar { background-color: #333; }

  .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: #333333; transform: translateX(-100%); 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; transform: translateX(0); }
  .nav-container { flex-direction: column; align-items: flex-start; padding: 20px 0; width: 100%; max-width: none; }
  .nav-link { width: 100%; padding: 12px 20px; border-bottom: 1px solid rgba(255,255,255,0.05); justify-content: flex-start; }
  .nav-link:last-child { border-bottom: none; }

  .overlay.active { display: block; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-col { margin-bottom: 20px; }
  .footer-col:last-child { margin-bottom: 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;
  }
}