.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:#FFFFFF;box-shadow:0 2px 15px rgba(0,0,0,0.15);min-height:auto}.header-top{background:#E53935;width:100%;min-height:68px;display:flex;align-items:center}.header-container{max-width:1200px;width:100%;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 30px;min-height:68px}.logo{display:inline-block;color:#FFFFFF;font-size:28px;font-weight:800;text-decoration:none;letter-spacing:1px;line-height:1.2;padding:8px 0}.logo:hover{color:#FFFFFF;text-decoration:none}.desktop-nav-buttons{display:flex;align-items:center;gap:12px}.desktop-nav-buttons .btn,.mobile-nav-buttons .btn{display:inline-block;padding:10px 24px;border-radius:50px;font-weight:700;font-size:14px;text-decoration:none;color:#FFFFFF;background:linear-gradient(180deg,#FF5A4F 0%,#E53935 100%);transition:all .3s ease;box-shadow:0 4px 15px rgba(229,57,53,0.3)}.desktop-nav-buttons .btn:hover,.mobile-nav-buttons .btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(229,57,53,0.4);color:#FFFFFF}.desktop-nav-buttons .btn-login,.mobile-nav-buttons .btn-login{background:#FFFFFF;color:#E53935}.desktop-nav-buttons .btn-login:hover,.mobile-nav-buttons .btn-login:hover{background:#f8f8f8;color:#E53935}.main-nav{background:#FFFFFF;width:100%;min-height:52px;display:flex;align-items:center;border-bottom:1px solid #E0E0E0}.nav-container{max-width:1200px;width:100%;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 20px;flex-wrap:wrap}.nav-container a{color:#333333;text-decoration:none;font-size:15px;font-weight:600;padding:10px 15px;transition:color .3s ease;line-height:1.4}.nav-container a:hover{color:#E53935;text-decoration:none}.mobile-nav-buttons{display:none}.hamburger-menu{display:none}.mobile-menu-overlay{display:none}.site-footer{background:#2B2B2B;color:#FFFFFF;width:100%;padding:40px 0 0 0;margin-top:40px}.footer-container{max-width:1200px;margin:0 auto;display:flex;flex-wrap:wrap;padding:0 20px;gap:30px}.footer-col{flex:1;min-width:200px}.footer-brand{flex:2;min-width:280px}.footer-logo{display:inline-block;color:#FFFFFF;font-size:24px;font-weight:800;text-decoration:none;margin-bottom:15px}.footer-logo:hover{color:#FF5A4F;text-decoration:none}.footer-brand p{color:#CCCCCC;font-size:14px;line-height:1.6;margin:0}.footer-links h4{color:#FFFFFF;font-size:18px;font-weight:700;margin-bottom:15px;position:relative;padding-bottom:10px}.footer-links h4::after{content:'';position:absolute;left:0;bottom:0;width:40px;height:3px;background:linear-gradient(90deg,#FF5A4F,#E53935);border-radius:2px}.footer-nav{list-style:none;padding:0;margin:0}.footer-nav li{margin-bottom:8px}.footer-nav a{color:#CCCCCC;text-decoration:none;font-size:14px;line-height:1.4;transition:color .3s ease}.footer-nav a:hover{color:#FF5A4F;text-decoration:none}.footer-bottom{border-top:1px solid #444444;margin-top:30px;padding:15px 0;text-align:center}.footer-bottom p{color:#AAAAAA;font-size:14px;margin:0}:root{--header-offset:122px}body{padding-top:var(--header-offset);margin:0}@media(max-width:768px){:root{--header-offset:110px}.header-top{min-height:60px}.header-container{width:100%;max-width:none;padding:0 15px;min-height:60px}.logo{font-size:24px;padding:6px 0}.desktop-nav-buttons{display:none}.main-nav{display:none;position:fixed;top:0;left:0;width:280px;height:100vh;background:#FFFFFF;flex-direction:column;justify-content:flex-start;align-items:flex-start;transform:translateX(-100%);transition:transform .3s ease;margin:0;z-index:1001;box-shadow:2px 0 15px rgba(0,0,0,0.1);overflow-y:auto}.main-nav.active{display:flex;transform:translateX(0)}.nav-container{width:100%;max-width:none;flex-direction:column;justify-content:flex-start;align-items:flex-start;padding:0}.nav-container a{width:100%;display:block;padding:15px 25px;border-bottom:1px solid #E0E0E0;font-size:16px}.mobile-nav-buttons{display:flex;justify-content:center;align-items:center;gap:10px;padding:10px 15px;background:#F5F7FA;border-bottom:1px solid #E0E0E0;flex-wrap:wrap}.mobile-nav-buttons .btn{display:inline-block;padding:8px 20px;font-size:13px}.hamburger-menu{display:block;position:absolute;top:8px;left:15px;z-index:1002;width:40px;height:40px;cursor:pointer;background:transparent;border:none;padding:8px}.hamburger-menu span{display:block;width:24px;height:2px;background:#FFFFFF;margin:5px auto;transition:all .3s ease}.hamburger-menu.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.hamburger-menu.active span:nth-child(2){opacity:0}.hamburger-menu.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);z-index:999}.mobile-menu-overlay.active{display:block}.btn-register,.btn-login{border:none;cursor:pointer;text-align:center}.site-header{background:#FFFFFF}.footer-container{flex-direction:column;padding:0 15px}.footer-col{min-width:100%}.footer-brand{min-width:100%}.footer-bottom{padding:15px 10px}.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;
}