:root{--header-offset:122px;--primary-color:#E53935;--secondary-color:#FF5A4F;--text-main:#333333;--card-bg:#FFFFFF;--border-color:#E0E0E0;--bg-color:#F5F7FA}.site-header{position:fixed;top:0;left:0;width:100%;background-color:#FFFFFF;box-shadow:0 2px 15px rgba(0,0,0,0.2);z-index:1000;min-height:auto}.header-top{background-color:#C62828;width:100%;border-bottom:1px solid rgba(255,255,255,0.1)}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding-left:20px;padding-right:20px;min-height:68px;box-sizing:border-box}.logo{display:inline-block;font-size:28px;font-weight:800;color:#FFFFFF;text-decoration:none;text-transform:uppercase;letter-spacing:1px;line-height:1.2;font-family:'Arial Black',Arial,sans-serif;text-shadow:1px 1px 3px rgba(0,0,0,0.3)}.logo:hover{color:#FFFFFF;text-decoration:none}.desktop-nav-buttons{display:flex;gap:12px;align-items:center}.btn{display:inline-block;padding:10px 24px;border-radius:8px;font-weight:700;font-size:14px;text-decoration:none;cursor:pointer;transition:all 0.3s ease;text-align:center;min-width:100px;color:#FFFFFF;font-family:'Arial',sans-serif;line-height:1.4}.btn:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.2)}.btn-login{background:linear-gradient(180deg,#FF5A4F 0%,#E53935 100%);border:1px solid rgba(255,255,255,0.3)}.btn-register{background:linear-gradient(180deg,#FFD54F 0%,#FFB300 100%);color:#5D4037;border:1px solid rgba(255,255,255,0.3)}.btn-footer{background:linear-gradient(180deg,#FF5A4F 0%,#E53935 100%);min-width:120px;margin-top:10px}.main-nav{background-color:#FFFFFF;width:100%;display:flex;box-shadow:0 4px 10px rgba(0,0,0,0.1)}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 20px;width:100%;box-sizing:border-box;min-height:52px}.nav-menu{display:flex;flex-direction:row;justify-content:center;align-items:center;list-style:none;margin:0;padding:0;gap:32px;flex-wrap:nowrap}.nav-menu li{position:relative}.nav-menu a{display:block;padding:12px 0;font-weight:600;font-size:15px;color:#333333;text-decoration:none;transition:color 0.3s ease;font-family:'Arial',sans-serif;white-space:nowrap}.nav-menu a:hover{color:#E53935}.nav-menu a.active{color:#E53935;border-bottom:3px solid #E53935}.mobile-logo{display:none}.mobile-nav-buttons{display:none}.hamburger-menu{display:none}.mobile-nav-header{display:none}.mobile-menu-overlay{display:none}body{padding-top:var(--header-offset);margin:0;background-color:var(--bg-color);font-family:'Arial',sans-serif}.site-footer{background-color:#B71C1C;color:#FFFFFF;padding-top:50px;margin-top:50px}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:40px;padding:0 20px 30px;box-sizing:border-box}.footer-column{min-width:0}.footer-logo{font-size:28px;font-weight:800;color:#FFFFFF;text-decoration:none;text-transform:uppercase;display:inline-block;margin-bottom:15px;font-family:'Arial Black',Arial,sans-serif}.footer-logo:hover{color:#FFFFFF;text-decoration:none}.footer-description{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.9);margin:0;text-align:left}.footer-title{font-size:16px;font-weight:700;color:#FFFFFF;margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid #FF5A4F;display:inline-block}.footer-nav{list-style:none;padding:0;margin:0}.footer-nav li{margin-bottom:10px}.footer-nav a{color:rgba(255,255,255,0.85);text-decoration:none;font-size:14px;transition:color 0.3s,padding-left 0.3s;pointer-events:auto}.footer-nav a:hover{color:#FFFFFF;padding-left:5px;text-decoration:underline}.footer-contact p{color:rgba(255,255,255,0.9);font-size:14px;margin-bottom:10px;line-height:1.6}.footer-bottom{border-top:1px solid rgba(255,255,255,0.2);text-align:center;padding:20px 0;background-color:rgba(0,0,0,0.2)}.copyright{font-size:14px;color:rgba(255,255,255,0.8);margin:0}@media(max-width:768px){:root{--header-offset:110px}.header-container{width:100%;max-width:none;padding-left:10px;padding-right:10px}.desktop-nav-buttons{display:flex;gap:8px;align-items:center;justify-content:center;width:100%;margin:5px 0}.btn{min-width:unset;padding:8px 16px;font-size:13px}.site-header{position:fixed;top:0;left:0}.header-top{border-bottom:none}.main-nav{background-color:#FFFFFF;width:100%;display:none;flex-direction:column;position:fixed;top:0;left:0;height:100vh;height:100dvh;overflow-y:auto;transform:translateX(-100%);transition:transform 0.3s ease;z-index:1001;box-shadow:2px 0 20px rgba(0,0,0,0.2)}.main-nav.active{display:flex;transform:translateX(0)}.main-nav.active .mobile-nav-header{display:flex}.mobile-nav-header{display:none;align-items:center;justify-content:space-between;padding:15px;border-bottom:1px solid #E0E0E0;background-color:#FFFFFF}.mobile-logo{display:block}.hamburger-menu{display:flex;flex-direction:column;justify-content:center;align-items:center;background:none;border:none;cursor:pointer;width:40px;height:40px;position:absolute;top:15px;right:15px}.hamburger-menu span{width:24px;height:2px;background:#333;margin:4px 0;transition:transform 0.3s,opacity 0.3s;border-radius:2px}.hamburger-menu.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}.hamburger-menu.active span:nth-child(2){opacity:0}.hamburger-menu.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.nav-container{width:100%;max-width:none;flex-direction:column;justify-content:flex-start;padding:0;min-height:calc(100vh - 80px)}.nav-menu{display:flex;flex-direction:column;justify-content:flex-start;align-items:stretch;width:100%;margin-top:70px;padding:0 20px;gap:0}.nav-menu li{width:100%;border-bottom:1px solid #E0E0E0}.nav-menu li:nth-child(10){border-bottom:none}.nav-menu a{width:100%;text-align:center;padding:15px 0;font-size:14px}.nav-menu a.active{border-bottom:none;background-color:#FFEBEE;border-radius:8px;margin:5px 0}.mobile-nav-buttons{display:flex;flex-direction:row;justify-content:center;align-items:center;gap:8px;width:100%;padding:15px;background-color:#F5F5F5;margin-top:auto;margin-bottom:0}.mobile-nav-buttons .btn{flex:1;min-width:unset;padding:10px;font-size:14px;max-width:200px}.site-footer .footer-container{grid-template-columns:1fr;gap:4;padding:0 15px;text-align:left}.footer-column{width:100%;margin-top:20px}.footer-nav{display:flex;flex-wrap:wrap}.footer-nav li{width:50%;box-sizing:border-box;padding-right:10px}body{overflow-x:hidden}.page-content img{max-width:100%!important;height:auto!important;display:block}.page-content{overflow-x:hidden;max-width:100%}.site-footer{background-color:#B71C1C;color:#fff;padding:20px 0 0;margin-top:20px}.site-footer h4{font-size:15px;color:#fff;text-align:left;margin-top:15px}.site-footer p{font-size:13px;color:rgba(255,255,255,0.9);text-align:left;padding:0 10px}.footer-logo{font-size:24px;font-weight:700;text-transform:uppercase;color:#fff;text-decoration:none;display:block;text-align:center;margin:5px 0}.footer-container{grid-template-columns:1fr;justify-items:start}.footer-nav{justify-content:flex-start}.footer-nav li a{display:inline-block;color:rgba(255,255,255,0.8)}.footer-bottom{background:rgba(0,0,0,0.3);color:rgba(255,255,255,0.7);padding:6px 10px;text-align:center;font-size:12px;margin-top:15px}.footer-bottom p{margin:0;padding:0;color:rgba(255,255,255,0.8)}}
  .footer-copyright{font-size:12px;color:#bbb;text-align:center;padding:5px 0;margin:0}}
/* 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;
}