:root { --header-offset: 122px; --primary-color: #2F6BFF; --secondary-color: #6FA3FF; --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%); --text-main: #1F2D3D; --card-bg: #FFFFFF; --background: #F4F7FB; --border-color: #D6E2FF; --glow-color: #A5C4FF; } body { padding-top: var(--header-offset); margin: 0; font-family: Arial, Helvetica, sans-serif; background-color: var(--background); color: var(--text-main); } .site-header { position: fixed; top: 0; left: 0; width: 100%; background-color: #FFFFFF; z-index: 1000; box-shadow: 0 4px 15px rgba(47, 107, 255, 0.15); } .header-top { background: linear-gradient(90deg, #1F3A93 0%, #2F6BFF 100%); width: 100%; } .header-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 12px 30px; min-height: 68px; box-sizing: border-box; } .logo { color: #FFFFFF; font-size: 28px; font-weight: 800; text-decoration: none; letter-spacing: 1px; text-transform: uppercase; display: block; flex-shrink: 0; } .desktop-nav-buttons { display: flex; gap: 12px; align-items: center; flex-shrink: 0; } .btn { display: inline-block; padding: 10px 22px; border-radius: 6px; font-weight: 700; font-size: 14px; text-decoration: none; transition: all 0.3s; border: none; cursor: pointer; text-align: center; } .btn-register { background: var(--button-gradient); color: #FFFFFF; box-shadow: 0 2px 8px rgba(47, 107, 255, 0.3); } .btn-register:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(47, 107, 255, 0.4); } .btn-download { background: #FFFFFF; color: #2F6BFF; border: 2px solid #2F6BFF; } .btn-download:hover { background: #E8F0FF; transform: translateY(-2px); } .main-nav { background-color: #F4F7FB; width: 100%; display: flex; border-bottom: 2px solid var(--border-color); } .nav-container { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: row; justify-content: center; align-items: center; padding: 0 20px; gap: 4px; width: 100%; box-sizing: border-box; min-height: 52px; } .nav-link { color: #1F2D3D; font-size: 15px; font-weight: 600; text-decoration: none; padding: 14px 12px; transition: color 0.3s, background-color 0.3s; border-bottom: 3px solid transparent; display: block; } .nav-link:hover { color: #2F6BFF; background-color: #E8F0FF; border-bottom-color: #2F6BFF; } .mobile-nav-buttons { display: none; } .hamburger-menu { display: none; } .mobile-menu-overlay { display: none; } .site-footer { background: linear-gradient(180deg, #1F3A93 0%, #2F6BFF 100%); color: #FFFFFF; margin-top: 50px; } .footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 30px; padding: 50px 30px 30px; } .footer-column { padding: 10px 0; } .footer-logo { color: #FFFFFF; font-size: 28px; font-weight: 800; text-decoration: none; text-transform: uppercase; letter-spacing: 1px; display: inline-block; margin-bottom: 15px; } .footer-description { color: #D6E2FF; font-size: 14px; line-height: 1.6; margin: 0; } .footer-title { color: #FFFFFF; font-size: 17px; font-weight: 700; margin-bottom: 15px; position: relative; padding-bottom: 10px; } .footer-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 35px; height: 2px; background-color: #A5C4FF; } .footer-nav { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; } .footer-nav li a { color: #D6E2FF; text-decoration: none; font-size: 14px; transition: color 0.3s, padding-left 0.3s; } .footer-nav li a:hover { color: #FFFFFF; padding-left: 5px; } .footer-hotline, .footer-address { color: #D6E2FF; font-size: 14px; line-height: 1.8; margin: 0; } .footer-bottom { text-align: center; padding: 20px; border-top: 1px solid rgba(165, 196, 255, 0.3); color: #D6E2FF; font-size: 14px; } @media (max-width: 768px) { :root { --header-offset: 110px; } body { overflow-x: hidden; } .header-container { width: 100%; max-width: none; padding: 8px 15px; min-height: 60px; justify-content: center; position: relative; } .logo { font-size: 24px; flex: 1; text-align: center; } .desktop-nav-buttons { display: none; } .main-nav { display: none; position: fixed; top: 0; left: 0; width: 280px; height: 100%; background-color: #F4F7FB; flex-direction: column; justify-content: flex-start; transform: translateX(-100%); transition: transform 0.4s ease; z-index: 1002; border-right: 2px solid var(--border-color); border-bottom: none; } .main-nav.active { display: flex; transform: translateX(0); } .nav-container { flex-direction: column; align-items: flex-start; padding: 10px 0; gap: 0; max-width: none; width: 100%; min-height: auto; } .nav-link { color: #1F2D3D; font-size: 15px; font-weight: 600; text-decoration: none; padding: 14px 30px; transition: color 0.3s, background-color 0.3s; border-bottom: 1px solid #E8F0FF; width: 100%; box-sizing: border-box; } .nav-link:hover { background-color: #E8F0FF; color: #2F6BFF; border-bottom-color: #E8F0FF; } .mobile-nav-buttons { display: flex; justify-content: center; gap: 12px; padding: 10px 15px; background-color: #FFFFFF; border-bottom: 2px solid var(--border-color); width: 100%; box-sizing: border-box; } .mobile-nav-buttons .btn { flex: 1; font-size: 13px; padding: 10px 15px; max-width: 180px; } .hamburger-menu { display: block; position: absolute; top: 17px; left: 10px; width: 35px; height: 30px; cursor: pointer; z-index: 1003; background: transparent; border: none; padding: 0; } .hamburger-menu span { display: block; width: 100%; height: 3px; background-color: #FFFFFF; margin: 5px 0; transition: all 0.4s ease; border-radius: 2px; } .hamburger-menu.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); } .hamburger-menu.active span:nth-child(2) { opacity: 0; } .hamburger-menu.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); } .mobile-menu-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(31, 45, 61, 0.6); z-index: 1001; opacity: 0; transition: opacity 0.4s ease; } .mobile-menu-overlay.active { display: block; opacity: 1; } .site-footer { background: linear-gradient(180deg, #1F3A93 0%, #2F6BFF 100%); } .footer-container { grid-template-columns: 1fr 1fr; gap: 20px; padding: 30px 15px 20px; } .footer-bottom { padding: 15px 10px; font-size: 13px; } .footer-description { font-size: 13px; } .footer-title { font-size: 16px; } .footer-nav li a { font-size: 13px; } .page-content img { max-width: 100% !important; height: auto !important; display: block; } .page-content { overflow-x: hidden; max-width: 100%; } body { overflow-x: hidden; } } @media (max-width: 480px) { .footer-container { grid-template-columns: 1fr; padding: 25px 15px 15px; } .mobile-nav-buttons .btn { font-size: 12px; padding: 9px 12px; } .footer-bottom { font-size: 12px; } }
/* 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;
}