:root{--header-offset:122px;--primary:#E53935;--secondary:#FF5A4F;--card-bg:#FFFFFF;--bg:#F5F7FA;--text-main:#333333;--border:#E0E0E0;}body{padding-top:var(--header-offset);margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text-main);}.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;box-shadow:0 4px 20px rgba(0,0,0,0.25);}.header-top{box-sizing:border-box;height:68px;min-height:68px;display:flex;align-items:center;overflow:hidden;background:var(--primary);width:100%;}.header-container{box-sizing:border-box;width:100%;height:100%;max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding-left:24px;padding-right:24px;}.logo{display:inline-block;font-size:30px;font-weight:800;color:#FFFFFF;text-decoration:none;letter-spacing:1px;text-transform:lowercase;line-height:1;}.logo:hover{color:#FFE0DE;}.logo img{display:block;max-height:60px;height:auto;width:auto;max-width:280px;object-fit:contain;}.desktop-nav-buttons{display:flex;gap:12px;align-items:center;}.mobile-nav-buttons{box-sizing:border-box;display:none;min-height:48px;}.btn{display:inline-block;text-decoration:none;text-align:center;border-radius:8px;font-weight:700;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;border:none;}.btn-login{background:linear-gradient(180deg,#FFFFFF 0%,#F0F0F0 100%);color:var(--primary);padding:10px 20px;font-size:14px;box-shadow:0 2px 8px rgba(0,0,0,0.15);}.btn-register{background:linear-gradient(180deg,#FF5A4F 0%,#E53935 100%);color:#FFFFFF;padding:10px 20px;font-size:14px;box-shadow:0 2px 8px rgba(0,0,0,0.25);}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,0.3);}.hamburger-menu{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:42px;height:42px;background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.4);border-radius:8px;cursor:pointer;padding:0;z-index:1001;}.hamburger-line{display:block;width:22px;height:2px;background:#FFFFFF;border-radius:2px;transition:transform .3s ease,opacity .3s ease;}.hamburger-menu.active .hamburger-line:nth-child(1){transform:translateY(7px) rotate(45deg);}.hamburger-menu.active .hamburger-line:nth-child(2){opacity:0;}.hamburger-menu.active .hamburger-line:nth-child(3){transform:translateY(-7px) rotate(-45deg);}.main-nav{box-sizing:border-box;height:52px;min-height:52px;display:flex;align-items:center;overflow:hidden;background:#FFFFFF;width:100%;border-top:2px solid var(--secondary);}.nav-container{box-sizing:border-box;height:100%;max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 20px;gap:6px;flex-wrap:nowrap;}.nav-link{display:inline-block;text-decoration:none;color:var(--text-main);font-size:14px;font-weight:600;padding:8px 12px;border-radius:6px;white-space:nowrap;transition:background-color .2s ease,color .2s ease;}.nav-link:hover,.nav-link.active{background:var(--primary);color:#FFFFFF;}.mobile-overlay{display:none;}.site-footer{background:#1A1A1A;color:#DDDDDD;margin-top:60px;}.footer-container{max-width:1200px;margin:0 auto;padding:0 24px;box-sizing:border-box;}.footer-top{padding-top:50px;}.footer-top-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:10px;}.footer-col{min-width:0;}.footer-about .footer-logo{display:inline-block;font-size:28px;font-weight:800;color:#FFFFFF;text-decoration:none;letter-spacing:1px;margin-bottom:14px;}.footer-about .footer-logo:hover{color:var(--secondary);}.footer-description{font-size:13px;line-height:1.7;color:#BBBBBB;margin:0;word-wrap:break-word;overflow-wrap:break-word;}.footer-heading{font-size:15px;font-weight:700;color:#FFFFFF;margin:0 0 16px;padding-bottom:8px;border-bottom:2px solid var(--secondary);display:inline-block;}.footer-nav{list-style:none;margin:0;padding:0;}.footer-nav li{margin-bottom:10px;}.footer-nav a{color:#BBBBBB;text-decoration:none;font-size:13px;transition:color .2s ease,padding-left .2s ease;display:inline-block;}.footer-nav a:hover{color:var(--secondary);padding-left:4px;}.footer-slot-anchor-inner{display:block;min-height:1px;}.footer-mid{padding:20px 0;}.footer-mid-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:10px 0;}.footer-bottom{background:#111111;border-top:1px solid #333333;padding:18px 0;text-align:center;}.footer-bottom p{margin:0;font-size:13px;color:#AAAAAA;}@media (max-width:768px){:root{--header-offset:110px;}.header-top{min-height:60px !important;height:60px !important;}.header-container{width:100%;max-width:none;padding-left:15px;padding-right:15px;position:relative;}.logo{flex:1 !important;display:flex !important;justify-content:center !important;align-items:center !important;font-size:24px;}.logo img{display:block !important;max-width:100%;height:auto;max-height:56px;}.desktop-nav-buttons{display:none !important;}.mobile-nav-buttons{display:flex !important;align-items:center;justify-content:center;width:100%;max-width:100%;box-sizing:border-box;padding-left:15px;padding-right:15px;overflow:hidden;gap:10px;flex-wrap:nowrap;background:var(--primary);padding-top:8px;padding-bottom:8px;}.mobile-nav-buttons .btn{flex:1;min-width:0;max-width:calc(50% - 5px);box-sizing:border-box;padding:8px 12px;font-size:13px;white-space:normal;word-wrap:break-word;overflow-wrap:break-word;}.hamburger-menu{display:flex;order:-1;}.main-nav{position:fixed;top:var(--header-offset);left:0;width:100%;max-width:320px;height:auto;min-height:0;display:none;flex-direction:column;background:#FFFFFF;z-index:1001;box-shadow:4px 0 20px rgba(0,0,0,0.3);transform:translateX(-100%);transition:transform .3s ease;overflow-y:auto;max-height:calc(100vh - var(--header-offset));padding:12px 0;}.main-nav.active{display:block;transform:translateX(0);}.nav-container{display:flex;flex-direction:column;height:auto;width:100%;max-width:none;padding:0;gap:0;}.nav-link{display:block;width:100%;box-sizing:border-box;padding:14px 20px;border-radius:0;font-size:15px;border-bottom:1px solid #F0F0F0;white-space:normal;}.nav-link:hover,.nav-link.active{background:var(--primary);color:#FFFFFF;}.mobile-overlay{display:none;position:fixed;top:var(--header-offset);left:0;right:0;bottom:0;background:rgba(0,0,0,0.6);z-index:1000;}.mobile-overlay.active{display:block;}.footer-top-grid{grid-template-columns:1fr;gap:30px;}.footer-mid-grid{grid-template-columns:1fr 1fr;}.page-content img{max-width:100% !important;height:auto !important;display:block;}.page-content{overflow-x:hidden;max-width:100%;}body{overflow-x:hidden;}}.no-scroll{overflow: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;
}