:root { --primary-color: #017439; --secondary-color: #FFFFFF; --register-color: #C30808; --login-color: #C30808; --btn-text-color: #FFFF00; --header-offset: 122px; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, Helvetica, sans-serif; background-color: #f8f9fa; color: #333333; padding-top: var(--header-offset); }
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background-color: var(--primary-color); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); min-height: auto; }
.header-top { background-color: var(--primary-color); width: 100%; }
.header-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; min-height: 68px; padding: 0 20px; }
.logo-area { display: flex; align-items: center; }
.logo { font-size: 28px; font-weight: bold; color: var(--secondary-color); text-decoration: none; letter-spacing: 1px; display: block; line-height: 1; }
.desktop-nav-buttons { display: flex; align-items: center; gap: 10px; }
.btn { display: inline-block; padding: 10px 24px; border-radius: 6px; font-size: 15px; font-weight: bold; text-decoration: none; text-align: center; transition: all 0.3s ease; border: none; cursor: pointer; line-height: 1.4; }
.btn-register { background-color: var(--register-color); color: var(--btn-text-color); }
.btn-login { background-color: var(--login-color); color: var(--btn-text-color); }
.btn:hover { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3); }
.main-nav { background-color: #025c2e; width: 100%; display: flex; min-height: 52px; position: static; }
.nav-container { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: row; justify-content: center; align-items: center; padding: 0 20px; gap: 0; flex-wrap: wrap; }
.nav-link { color: var(--secondary-color); text-decoration: none; font-size: 15px; font-weight: 600; padding: 16px 14px; display: block; transition: all 0.3s ease; border-bottom: 3px solid transparent; }
.nav-link:hover { background-color: rgba(255, 255, 255, 0.15); border-bottom-color: var(--secondary-color); }
.site-footer { background-color: #1a2b22; color: #dddddd; margin-top: 40px; padding-top: 40px; font-size: 15px; }
.footer-container { max-width: 1200px; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 30px; padding: 0 20px 30px; }
.footer-column { flex: 1; min-width: 200px; }
.footer-about { flex: 1.4; }
.footer-column h3 { color: var(--secondary-color); font-size: 18px; margin-bottom: 15px; padding-bottom: 8px; border-bottom: 2px solid var(--primary-color); display: inline-block; }
.footer-logo { font-size: 26px; font-weight: bold; color: var(--secondary-color); text-decoration: none; display: inline-block; margin-bottom: 12px; }
.footer-about p { line-height: 1.6; color: #bbbbbb; }
.footer-nav { display: flex; flex-direction: column; gap: 0; }
.footer-nav a { color: #cccccc; text-decoration: none; padding: 6px 0; transition: all 0.3s ease; }
.footer-nav a:hover { color: var(--secondary-color); padding-left: 8px; }
.footer-contact p { line-height: 1.6; color: #bbbbbb; margin-bottom: 15px; }
.footer-contact-btn { display: inline-block; background-color: var(--primary-color); color: var(--secondary-color); padding: 10px 20px; border-radius: 4px; text-decoration: none; font-weight: bold; }
.footer-contact-btn:hover { background-color: #025c2e; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); text-align: center; padding: 20px; background-color: #12251b; font-size: 14px; }
.footer-bottom p { color: #aaaaaa; margin: 5px 0; }
.footer-18 { color: #ffcc00 !important; font-weight: bold; }
.mobile-action-buttons { display: none; }
.hamburger-menu { display: none; }
.mobile-menu-overlay { display: none; }
@media (max-width: 768px) {
:root { --header-offset: 110px; }
body { overflow-x: hidden; }
.page-content { overflow-x: hidden; max-width: 100%; }
.page-content img { max-width: 100% !important; height: auto !important; display: block; }
.site-header { position: fixed; top: 0; left: 0; width: 100%; }
.header-container { width: 100%; max-width: none; min-height: 60px; padding: 0 15px; display: flex; align-items: center; justify-content: space-between; position: relative; }
.logo-area { flex: 1; display: flex; justify-content: center; order: 2; text-align: center; padding: 0; }
.logo { font-size: 24px; display: block; }
.desktop-nav-buttons { display: none; }
.hamburger-menu { display: flex; flex-direction: column; justify-content: center; align-items: center; width: 44px; height: 44px; background: transparent; border: none; cursor: pointer; order: 1; padding: 0; margin-left: 0; }
.hamburger-line { display: block; width: 24px; height: 3px; background-color: var(--secondary-color); margin: 3px 0; transition: all 0.3s ease; border-radius: 2px; }
.hamburger-menu.active .hamburger-line:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.hamburger-menu.active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger-menu.active .hamburger-line:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
.mobile-action-buttons { display: flex; justify-content: center; align-items: center; gap: 10px; padding: 8px 15px; background-color: var(--primary-color); border-top: 1px solid rgba(255, 255, 255, 0.2); min-height: 48px; width: 100%; }
.mobile-action-buttons .btn { flex: 1; max-width: 150px; padding: 10px 12px; font-size: 14px; text-align: center; }
.main-nav { display: none; flex-direction: column; position: fixed; top: 0; left: 0; width: 280px; height: 100vh; background-color: #025c2e; z-index: 1002; transform: translateX(-100%); transition: transform 0.3s ease-in-out; padding-top: 0; box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3); overflow-y: auto; }
.main-nav.active { display: block; transform: translateX(0); }
.nav-container { flex-direction: column; align-items: flex-start; width: 100%; max-width: none; padding: 0; gap: 0; }
.nav-link { width: 100%; padding: 16px 24px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); font-size: 15px; color: var(--secondary-color); }
.nav-link:hover { background-color: rgba(0, 0, 0, 0.2); border-bottom-color: transparent; padding-left: 24px; }
.mobile-menu-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); z-index: 1001; transition: opacity 0.3s ease; }
.mobile-menu-overlay.active { display: block; opacity: 1; }
.site-footer { padding-top: 30px; }
.footer-container { flex-direction: column; gap: 25px; padding: 0 15px 25px; }
.footer-column { min-width: 100%; }
.footer-about { flex: 1; }
}
/* 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;
}