.gkn-wrap{max-width:1200px;margin:20px auto;padding:0 12px;box-sizing:border-box;}
  .gkn-shell{display:flex;gap:16px;align-items:flex-start;}
  .gkn-card{background:#fff;border:1px solid #e9e9e9;border-radius:16px;box-shadow:0 1px 3px rgba(0,0,0,.06);}
  .gkn-soft{border:1px solid #eef0f3;border-radius:14px;}
  .gkn-h1{margin:0;font-size:22px;font-weight:1000;letter-spacing:-.2px;color:#111;}
  .gkn-muted{color:#6b7280;}

  /* Sidebar */
  .gkn-side{width:280px;flex:0 0 280px;}
  .gkn-side-head{padding:16px;border-bottom:1px solid #eef0f3;}
  .gkn-side-title{font-size:14px;font-weight:1000;color:#111;margin:0;}
  .gkn-side-sub{font-size:12px;font-weight:700;color:#6b7280;margin-top:4px;line-height:1.35;}
  .gkn-side-body{padding:12px;}
  .gkn-catlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
  .gkn-catgroup{border:1px solid #eef0f3;border-radius:14px;overflow:hidden;background:#fff;}
  .gkn-catmain{display:flex;align-items:center;justify-content:space-between;gap:10px;text-decoration:none;padding:12px 12px;font-weight:1000;font-size:13px;color:#111;background:#fff;}
  .gkn-catmain:hover{background:#fafafa;}
  .gkn-catmain:focus{outline:2px solid rgba(17,17,17,.15);outline-offset:2px;}
  .gkn-catsub{padding:8px 10px 10px 10px;border-top:1px solid #eef0f3;display:flex;flex-direction:column;gap:6px;}
  .gkn-sublink{display:flex;align-items:center;gap:8px;text-decoration:none;padding:9px 10px;border-radius:12px;border:1px solid #eef0f3;background:#fff;color:#111;font-weight:900;font-size:12px;}
  .gkn-sublink:hover{border-color:#dfe3ea;}
  .gkn-sublink:focus{outline:2px solid rgba(17,17,17,.15);outline-offset:2px;}

  /* Main */
  .gkn-main{flex:1;min-width:0;}
  .gkn-head{padding:18px 18px 14px 18px;border-bottom:1px solid #eef0f3;}
  .gkn-breadcrumb{font-size:12px;color:#6b7280;line-height:1.4;margin-top:6px;}
  .gkn-breadcrumb a{color:#6b7280;text-decoration:underline;font-weight:800;}

  /* Search */
  .gkn-search{padding:14px 18px 18px 18px;}
  .gkn-searchbox{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
  .gkn-input{flex:1;min-width:220px;border:1px solid #e5e7eb;border-radius:12px;padding:12px 12px;font-size:14px;box-sizing:border-box;}
  .gkn-input:focus{outline:2px solid rgba(17,17,17,.15);outline-offset:2px;}
  .gkn-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;padding:12px 14px;border-radius:12px;border:1px solid #111;background:#111;color:#fff;font-weight:1000;font-size:13px;cursor:pointer;}
  .gkn-btn:hover{opacity:.95;}

  /* FAQ */
  .gkn-faq{padding:0 18px 18px 18px;}
  .gkn-faq-title{font-size:14px;font-weight:1000;color:#111;margin:0 0 10px 0;}
  .gkn-faqlist{display:flex;flex-direction:column;gap:10px;}
  .gkn-faqitem{border:1px solid #eef0f3;border-radius:14px;padding:12px 12px;background:#fff;}
  .gkn-q{margin:0 0 6px 0;font-weight:1000;color:#111;font-size:13px;line-height:1.45;display:flex;gap:10px;align-items:flex-start;}
  .gkn-dot{width:10px;height:10px;border-radius:999px;background:#111;flex:0 0 10px;margin-top:4px;opacity:.25;}
  .gkn-a{margin:0;color:#111;font-size:13px;line-height:1.7;}
  .gkn-a .gkn-muted{font-size:12px;}

  /* Mobile */
  @media (max-width: 980px){
    .gkn-shell{flex-direction:column;}
    .gkn-side{width:100%;flex:0 0 auto;}
  }