.image-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;min-height:80px;background:linear-gradient(135deg,#e8edf8,#f8f9fc);color:#8790a5;font:12px system-ui;}
.mobile-nav-toggle{display:none;}
@media(max-width:760px){
  html,body{overflow-x:hidden;}
  aside[aria-label="市场工具"]{display:none!important;position:fixed!important;z-index:1000;inset:0 auto 0 0;width:min(300px,86vw)!important;box-shadow:12px 0 50px #0004;}
  body.mobile-nav-open aside[aria-label="市场工具"]{display:flex!important;}
  .mobile-nav-toggle{display:block;position:fixed;right:14px;bottom:18px;z-index:1001;border:0;border-radius:24px;padding:13px 18px;background:#2855f5;color:#fff;font:600 14px system-ui;box-shadow:0 4px 20px #0003;}
  main{padding-left:18px!important;padding-right:18px!important;min-width:0!important;}
  h1{font-size:clamp(26px,7vw,36px)!important;}
  h2{font-size:22px!important;}
  section{max-width:100%;}
  main>section{overflow-wrap:anywhere;}
  nav{max-width:100%;}
}