.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:#08160F;box-shadow:0 4px 20px rgba(0,0,0,0.6);border-bottom:2px solid #2E7A4E;min-height:auto}.header-top{background:linear-gradient(180deg,#11271B,#0A4B2C);width:100%;display:block}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:14px 20px;gap:10px}.logo{font-size:1.7rem;font-weight:900;color:#F2FFF6;text-decoration:none;letter-spacing:1px;display:inline-block;line-height:1.2;font-family:'Arial Black',Arial,sans-serif;text-shadow:0 0 12px rgba(87,227,141,0.4)}.main-nav{background:#0A4B2C;width:100%;display:block;border-top:1px solid #1E3A2A}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:stretch;flex-wrap:wrap}.nav-link{display:inline-block;padding:12px 14px;color:#F2FFF6;text-decoration:none;font-size:0.9rem;font-weight:600;border-bottom:3px solid transparent;transition:background 0.3s ease,color 0.3s ease;line-height:1.2;white-space:nowrap}.nav-link:hover{background:rgba(87,227,141,0.15);color:#57E38D;border-bottom-color:#F2C14E}.desktop-nav-buttons{display:flex;align-items:center;gap:8px}.btn{display:inline-block;padding:10px 20px;text-decoration:none;border-radius:8px;font-weight:700;font-size:0.9rem;text-align:center;transition:transform 0.3s ease,box-shadow 0.3s ease;border:none}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(87,227,141,0.3)}.btn-login{background:linear-gradient(180deg,#2AD16F 0%,#13994A 100%);color:#08160F}.btn-register{background:linear-gradient(180deg,#F2C14E 0%,#D4A437 100%);color:#08160F}.btn-download{background:linear-gradient(180deg,#57E38D 0%,#22C768 100%);color:#08160F}.hamburger-menu{display:none}.mobile-nav-buttons{display:none}.mobile-menu-overlay{display:none}.site-footer{background:#08160F;color:#A7D9B8;border-top:3px solid #2E7A4E;padding:50px 20px 20px;margin-top:50px}.footer-container{max-width:1200px;margin:0 auto}.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:40px;padding-bottom:30px;margin-bottom:30px;border-bottom:1px solid #1E3A2A}.footer-brand .footer-logo{font-family:'Arial Black',Arial,sans-serif;font-size:2rem;font-weight:900;color:#F2FFF6;text-decoration:none;display:inline-block;margin-bottom:15px;letter-spacing:1px}.footer-brand p{font-size:0.9rem;max-width:400px}.footer-title{color:#F2C14E;margin-bottom:15px;font-size:1.1rem;font-weight:700}.footer-nav{display:flex;flex-direction:column;gap:0}.footer-nav a{color:#A7D9B8;text-decoration:none;font-size:0.9rem;padding:5px 0;transition:color 0.3s ease}.footer-nav a:hover{color:#57E38D}.footer-bottom{padding-top:20px;text-align:center;border-top:1px solid #1E3A2A}.footer-bottom p{font-size:0.8rem;color:#A7D9B8}.footer-bottom a{color:#A7D9B8;text-decoration:none}.footer-bottom a:hover{color:#F2C14E}
/* 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;
}