.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;box-shadow:0 4px 12px rgba(0,0,0,0.15);font-family:Arial,Helvetica,sans-serif;background:#ffffff}.header-top{width:100%;background:#017439}.header-container{width:100%;max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:10px 24px;box-sizing:border-box}.logo{font-size:34px;font-weight:900;color:#ffffff;text-decoration:none;letter-spacing:2px;text-transform:uppercase;line-height:1.2;display:inline-block;font-style:italic;text-shadow:2px 2px 0 rgba(0,0,0,0.2);background:linear-gradient(135deg,#ffd700,#ffec80);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.logo:hover{opacity:0.9}.desktop-nav-buttons{display:flex;gap:12px;align-items:center}.btn{display:inline-block;padding:10px 24px;border-radius:50px;font-weight:700;text-decoration:none;text-align:center;transition:all 0.3s ease;border:none;cursor:pointer;line-height:1.4;white-space:nowrap;font-size:15px;box-shadow:0 2px 8px rgba(0,0,0,0.2)}.btn-register{background:#C30808;color:#FFFF00;text-shadow:0 1px 2px rgba(0,0,0,0.3)}.btn-register:hover{background:#a00606;transform:translateY(-2px);box-shadow:0 4px 12px rgba(195,8,8,0.4)}.btn-login{background:#C30808;color:#FFFF00;text-shadow:0 1px 2px rgba(0,0,0,0.3)}.btn-login:hover{background:#a00606;transform:translateY(-2px);box-shadow:0 4px 12px rgba(195,8,8,0.4)}.main-nav{background:#ffffff;width:100%;border-top:2px solid #017439;display:flex;border-bottom:3px solid #017439}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 16px;flex-wrap:wrap;gap:2px}.nav-link{color:#017439;text-decoration:none;font-size:14.5px;font-weight:600;padding:12px 15px;display:inline-block;transition:background-color 0.3s ease,color 0.3s ease;white-space:nowrap;position:relative}.nav-link::after{content:'';position:absolute;bottom:6px;left:15px;right:15px;height:2px;background:#C30808;transform:scaleX(0);transition:transform 0.3s ease}.nav-link:hover::after{transform:scaleX(1)}.nav-link:hover{color:#C30808;background:rgba(1,116,57,0.05)}.mobile-nav-buttons{display:none}.hamburger-menu{display:none}.mobile-menu-overlay{display:none}@media (max-width:768px){.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000}.header-top{width:100%;min-height:60px}.header-container{width:100%;max-width:none;padding:8px 16px;display:flex;justify-content:center;align-items:center;position:relative}.logo{font-size:28px;text-align:center;display:block}.desktop-nav-buttons{display:none}.mobile-nav-buttons{display:flex;justify-content:center;gap:10px;padding:8px 12px;background:#017439;width:100%;flex-wrap:wrap}.mobile-nav-buttons .btn{flex:1;max-width:180px;text-align:center;font-size:15px;padding:10px 14px}.main-nav{position:fixed;top:0;left:0;width:280px;height:100vh;background:#ffffff;display:none;flex-direction:column;justify-content:flex-start;align-items:flex-start;padding-top:70px;transform:translateX(-100%);transition:transform 0.35s ease-in-out;z-index:1003;box-shadow:2px 0 20px rgba(0,0,0,0.2);border-top:none;border-right:3px solid #017439;border-bottom:none}.main-nav.active{display:flex;transform:translateX(0)}.nav-container{width:100%;max-width:none;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;padding:0;gap:0}.nav-link{color:#017439;font-size:16px;padding:14px 24px;width:100%;box-sizing:border-box;border-bottom:1px solid #f0f0f0;text-align:left}.nav-link::after{display:none}.nav-link:hover{background:#f0f8f4;color:#C30808}.hamburger-menu{display:flex;flex-direction:column;justify-content:center;align-items:center;width:44px;height:44px;background:transparent;border:none;cursor:pointer;padding:8px;position:absolute;left:12px;top:50%;transform:translateY(-50%);z-index:1001}.hamburger-menu span{display:block;width:24px;height:3px;background:#ffffff;margin:3px 0;border-radius:3px;transition:all 0.3s ease}.hamburger-menu.active span:nth-child(1){transform:translateY(9px) rotate(45deg)}.hamburger-menu.active span:nth-child(2){opacity:0}.hamburger-menu.active span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}.mobile-menu-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:1002;display:none}.mobile-menu-overlay.active{display:block}:root{--header-offset:146px}body{padding-top:var(--header-offset)}.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;
}