:root{
    --bg:#f6f7f8;
    --card:#ffffff;
    --text:#111827;
    --muted:#4b5563;
    --border:#e5e7eb;
    --link:#0f3d9e;
    --link-hover:#0b2f7a;
    --max: 880px;
  }
  
  *{ box-sizing:border-box; }
  
  html, body{
    margin:0;
    padding:0;
    background:var(--bg);
    color:var(--text);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
    line-height:1.6;
  }
  
  a{ color:var(--link); text-decoration: underline; text-underline-offset: 0.18em; }
  a:hover{ color:var(--link-hover); }
  
  .skip-link{
    position:absolute;
    left:-9999px;
    top:auto;
    width:1px;
    height:1px;
    overflow:hidden;
  }
  .skip-link:focus{
    left: 16px;
    top: 16px;
    width:auto;
    height:auto;
    padding: 10px 12px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    z-index: 999;
  }
  
  .site{
    max-width: var(--max);
    margin: 0 auto;
    padding: 28px 16px 56px;
  }
  
  .header{
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px 18px 14px;
  }
  
  .brand{
    margin:0;
    font-size: 1.25rem;
    font-weight: 750;
    letter-spacing: 0.2px;
  }
  
  .sub{
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 0.98rem;
  }
  
  .nav{
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    display:flex;
    flex-wrap: wrap;
    gap: 10px 12px;
  }
  
  .nav a{
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 10px;
    border: 1px solid transparent;
    background: transparent;
  }
  .nav a:hover{
    border-color: var(--border);
    background: #fafafa;
  }
  
  .main{
    margin-top: 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px;
  }
  
  .h1{
    margin:0 0 8px;
    font-size: 1.25rem;
  }
  
  .p{ margin: 10px 0; }
  .meta{ color: var(--muted); font-size: 0.95rem; }
  
  hr.sep{
    border:0;
    border-top:1px solid var(--border);
    margin: 14px 0;
  }
  
  .card{
    margin-top: 14px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fcfcfc;
  }
  
  .list{
    margin: 10px 0 0;
    padding-left: 18px;
  }
  
  .kv{
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 8px 12px;
    margin: 10px 0 0;
  }
  .kv div{ padding: 6px 0; border-bottom: 1px solid var(--border); }
  .kv .k{ color: var(--muted); }
  .kv .v{ font-weight: 600; }
  
  .footer{
    margin-top: 16px;
    color: var(--muted);
    font-size: 0.92rem;
    padding: 12px 2px 0;
  }
  
  .footer .row{
    display:flex;
    flex-wrap: wrap;
    gap: 6px 14px;
  }