/* lan-article.css — OCC LAN Wikipedia Package */
:root{
  --text:#1a1a2e;--bg:#fafbfc;--head:#0d1b2a;--link:#0366d6;--border:#d0d7de;
  --gold:#b8860b;--occ:#0a5aa0;--tbl-head:#f6f8fa;--tbl-border:#d0d7de;
  --tl-dot:#0366d6;--tl-line:#d0d7de;--code-bg:#f6f8fa;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:Georgia,'Times New Roman',serif;font-size:16px;line-height:1.75}
a{color:var(--link)}.art-wrap{max-width:860px;margin:0 auto;padding:0 24px}

/* HEADER */
.art-header{background:var(--head);color:#fff;padding:40px 0 32px}
.art-header .art-wrap{position:relative}
.art-occ-badge{display:inline-block;background:rgba(240,192,64,.15);border:1px solid rgba(240,192,64,.4);color:#f0c040;font-family:'Segoe UI',sans-serif;font-size:10px;text-transform:uppercase;letter-spacing:3px;padding:4px 14px;border-radius:20px;margin-bottom:16px;font-weight:700}
.art-header h1{font-size:clamp(1.6rem,4vw,2.6rem);font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:-.3px;border-bottom:2px solid rgba(255,255,255,.15);padding-bottom:16px}
.art-lead{font-size:1.05rem;color:rgba(255,255,255,.8);max-width:720px;line-height:1.7}

/* ATTRIBUTION ASIDE */
.art-attribution{background:#fffbea;border:1px solid #d4b000;border-left:4px solid var(--gold);border-radius:6px;padding:14px 18px;margin:24px 0;font-size:13px;line-height:1.7;font-family:'Segoe UI',sans-serif}
.art-attribution strong{color:#7a5f00}
.art-attribution a{color:var(--link)}

/* TOC */
.art-toc{background:var(--tbl-head);border:1px solid var(--border);border-radius:8px;padding:20px 24px;margin:0 0 32px;display:inline-block;min-width:220px}
.toc-title{font-family:'Segoe UI',sans-serif;font-size:12px;text-transform:uppercase;letter-spacing:2px;color:#57606a;font-weight:700;margin-bottom:12px}
.toc-list{padding-left:18px}
.toc-list li{font-family:'Segoe UI',sans-serif;font-size:13px;margin-bottom:6px}
.toc-list a{color:var(--link);text-decoration:none}.toc-list a:hover{text-decoration:underline}

/* MAIN */
#article-content{padding:0 0 40px}
#article-content section{margin-bottom:40px}

h2{font-size:1.4rem;font-weight:700;color:var(--head);border-bottom:2px solid var(--border);padding-bottom:8px;margin:0 0 18px}
h3{font-size:1.05rem;font-weight:700;color:var(--head);margin:24px 0 12px}
p{margin-bottom:14px}

/* LISTS */
.art-list{padding-left:22px;margin-bottom:16px;font-size:15px}
.art-list li{margin-bottom:8px;line-height:1.7}

/* TIMELINE */
.art-timeline{font-size:14px;font-family:'Segoe UI',sans-serif;padding-left:0;list-style:none}
.tl-item{display:grid;grid-template-columns:56px 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}
.tl-item:last-child{border-bottom:none}
.tl-item dt{font-weight:700;color:var(--occ);font-size:14px;padding-top:1px;flex-shrink:0}
.tl-item dd{color:var(--text);line-height:1.65}

/* DEFINITION LISTS */
.art-deflist{font-size:15px;font-family:'Segoe UI',sans-serif;margin-bottom:16px}
.art-deflist dt{font-weight:700;color:var(--head);margin-top:16px;margin-bottom:4px;font-size:15px}
.art-deflist dd{padding-left:16px;color:#444;line-height:1.7;border-left:3px solid var(--border);margin-left:0}
.topo-note{font-weight:400;font-size:12px;color:#57606a;font-style:italic;margin-left:6px}

/* TABLES */
.art-table-wrap{overflow-x:auto;margin:16px 0 24px}
.art-table{width:100%;border-collapse:collapse;font-family:'Segoe UI',sans-serif;font-size:13px}
.art-table caption{font-size:11px;text-transform:uppercase;letter-spacing:1.5px;color:#57606a;margin-bottom:8px;text-align:left;font-weight:700;padding-bottom:4px}
.art-table th{background:var(--tbl-head);color:var(--head);font-weight:700;padding:10px 12px;text-align:left;border:1px solid var(--tbl-border);white-space:nowrap}
.art-table td{padding:9px 12px;border:1px solid var(--tbl-border);vertical-align:top;line-height:1.5}
.art-table tbody tr:nth-child(even){background:#f0f4f8}
.art-table tbody tr:hover{background:#e8f0fe}

/* FOOTER */
.art-footer{border-top:2px solid var(--border);padding:24px 0;margin-top:40px}
.art-attr-block{background:#fffbea;border:1px solid #d4b000;border-radius:6px;padding:14px 18px;font-size:12px;font-family:'Segoe UI',sans-serif;line-height:1.8;margin-bottom:16px}
.art-attr-block a{color:var(--link)}
.art-footer-copy{font-family:'Segoe UI',sans-serif;font-size:12px;color:#57606a}
.art-footer-copy a{color:var(--link)}

@media(max-width:600px){
  .art-header{padding:24px 0 20px}
  .art-header h1{font-size:1.4rem}
  .tl-item{grid-template-columns:48px 1fr;gap:8px}
}