/* 进口膜网 统一头部样式 — 全站共用，所有页面通过 <link> 引用 */
/* 使用 jmh- 前缀，避免与各页面自带 <style> 中的 header/nav/.logo 等规则冲突 */
.jmh-header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.08);position:sticky;top:0;z-index:1000;}
.jmh-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;justify-content:space-between;}
.jmh-logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
.jmh-logo-icon{width:38px;height:38px;background:linear-gradient(135deg,#1a365d,#2b6cb0);border-radius:9px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:18px;flex:0 0 auto;}
.jmh-logo-text{font-size:20px;font-weight:800;color:#1a365d;line-height:1.1;}
.jmh-logo-text span{color:#e53e3e;}
.jmh-nav{display:flex;align-items:center;gap:26px;}
.jmh-nav a{font-size:15px;font-weight:500;color:#2d3748;text-decoration:none;transition:color .2s;position:relative;white-space:nowrap;}
.jmh-nav a:hover{color:#e53e3e;}
.jmh-nav a::after{content:'';position:absolute;bottom:-6px;left:0;width:0;height:2px;background:#e53e3e;transition:width .2s;}
.jmh-nav a:hover::after{width:100%;}
.jmh-cta{background:#e53e3e;color:#fff!important;padding:8px 18px;border-radius:6px;font-weight:600;}
.jmh-cta::after{display:none;}
.jmh-cta:hover{background:#c53030;color:#fff!important;}
.jmh-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;width:26px;height:22px;align-items:center;justify-content:center;}
.jmh-burger span{display:block;width:24px;height:2px;background:#1a365d;border-radius:2px;transition:.2s;}
.jmh-menu-cb{display:none;}
@media (max-width:860px){
  .jmh-nav{position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:6px 20px 14px;box-shadow:0 12px 24px rgba(0,0,0,.10);display:none;}
  .jmh-nav a{width:100%;padding:13px 4px;border-bottom:1px solid #e2e8f0;font-size:15px;}
  .jmh-nav a::after{display:none;}
  .jmh-cta{margin-top:10px;text-align:center;width:100%;}
  .jmh-burger{display:flex;}
  .jmh-menu-cb:checked ~ .jmh-nav{display:flex;}
  .jmh-menu-cb:checked ~ .jmh-burger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .jmh-menu-cb:checked ~ .jmh-burger span:nth-child(2){opacity:0;}
  .jmh-menu-cb:checked ~ .jmh-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
}