:root { --header-offset: 166px; --primary: #113B7A; --secondary: #1D5FD1; --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%); --card-bg: #10233F; --text-main: #F3F8FF; --text-secondary: #AFC4E8; --border-color: #244D84; --glow: #4FA8FF; --gold: #F2C14E; --divider: #1B3357; --deep-navy: #08162B; } body { padding-top: var(--header-offset); margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--deep-navy); } .site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: var(--primary); box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5); } .header-top { background: var(--deep-navy); border-bottom: 2px solid var(--gold); } .header-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 10px 20px; gap: 10px; } .logo { font-size: 28px; font-weight: bold; color: var(--gold); text-decoration: none; text-shadow: 0 0 10px rgba(242, 193, 78, 0.5); white-space: nowrap; display: inline-block; } .desktop-nav-buttons { display: flex; gap: 12px; align-items: center; } .btn { display: inline-block; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; border: none; cursor: pointer; transition: all 0.3s ease; } .btn-register { background: var(--button-gradient); color: var(--text-main); box-shadow: 0 4px 15px rgba(43, 115, 246, 0.4); } .btn-login { background: rgba(255, 255, 255, 0.1); color: var(--text-main); border: 2px solid var(--gold); } .btn-download { background: var(--button-gradient); color: var(--text-main); box-shadow: 0 4px 15px rgba(43, 115, 246, 0.4); } .btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(79, 168, 255, 0.4); } .main-nav { background: var(--primary); width: 100%; display: flex; border-bottom: 2px solid var(--divider); } .nav-container { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: row; justify-content: center; align-items: center; padding: 10px 20px; gap: 5px; flex-wrap: wrap; } .nav-link { color: var(--text-main); text-decoration: none; padding: 8px 16px; font-size: 15px; font-weight: 600; border-radius: 6px; transition: all 0.3s ease; white-space: nowrap; } .nav-link:hover { color: var(--gold); background: rgba(242, 193, 78, 0.1); } .nav-link.active { color: var(--gold); border-bottom: 2px solid var(--gold); } .hamburger-menu { display: none; position: fixed; top: 15px; left: 15px; z-index: 1001; background: transparent; border: none; cursor: pointer; width: 35px; height: 35px; padding: 0; } .hamburger-menu span { display: block; width: 100%; height: 3px; background: var(--gold); margin: 7px 0; transition: all 0.3s ease; border-radius: 3px; } .hamburger-menu.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 7px); } .hamburger-menu.active span:nth-child(2) { opacity: 0; } .hamburger-menu.active span:nth-child(3) { transform: rotate(-45deg) translate(9px, -9px); } .mobile-menu-overlay { display: none; position: fixed; inset: 0; background: rgba(8, 22, 43, 0.8); z-index: 998; } .mobile-menu-overlay.active { display: block; } body.no-scroll { overflow: hidden; } .mobile-nav-buttons { display: none; } .site-footer { background: var(--deep-navy); color: var(--text-main); padding: 40px 0 0; border-top: 3px solid var(--gold); } .footer-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; } .footer-logo { font-size: 24px; font-weight: bold; color: var(--gold); text-decoration: none; display: block; margin-bottom: 15px; text-shadow: 0 0 10px rgba(242, 193, 78, 0.4); } .footer-description { color: var(--text-secondary); font-size: 14px; line-height: 1.6; margin: 0 0 20px; } .footer-buttons { display: flex; gap: 10px; flex-wrap: wrap; } .footer-heading { color: var(--gold); font-size: 18px; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 1px solid var(--divider); } .footer-nav { display: flex; flex-direction: column; gap: 10px; } .footer-nav a { color: var(--text-secondary); text-decoration: none; font-size: 14px; transition: color 0.3s ease; } .footer-nav a:hover { color: var(--gold); } .footer-bottom { border-top: 1px solid var(--divider); margin-top: 30px; padding: 15px 0; } .copyright-text { text-align: center; color: var(--text-secondary); font-size: 14px; margin: 0; } @media (max-width: 768px) { :root { --header-offset: 146px; } .site-header { min-height: auto; } .header-top { order: 1; } .header-container { width: 100%; max-width: none; padding: 8px 15px; justify-content: center; } .logo { font-size: 22px; margin-left: 40px; } .desktop-nav-buttons { display: none; } .mobile-nav-buttons { display: flex; order: 3; background: var(--deep-navy); padding: 8px 0; justify-content: center; gap: 10px; border-bottom: 2px solid var(--divider); } .mobile-nav-buttons .btn { padding: 8px 30px; } .main-nav { position: fixed; top: 0; left: 0; width: 280px; height: 100vh; background: var(--primary); display: none; flex-direction: column; padding-top: 70px; z-index: 999; transform: translateX(-100%); transition: transform 0.3s ease; align-items: stretch; } .main-nav.active { display: block; transform: translateX(0); } .nav-container { width: 100%; max-width: none; flex-direction: column; padding: 10px; gap: 5px; } .nav-link { width: 100%; text-align: center; padding: 12px 20px; font-size: 16px; border-bottom: 1px solid var(--divider); display: block; } .hamburger-menu { display: block; } .footer-container { grid-template-columns: 1fr; gap: 30px; padding: 0 15px; } .footer-column { text-align: left; } .footer-nav { gap: 8px; } .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;
}