.progress-bar { position:fixed; top:66px; left:0; right:0; height:2px; background:var(--border); z-index:199; }
.progress-fill { height:100%; background:linear-gradient(90deg,var(--blue),var(--teal)); width:0%; transition:width .1s; }

.article-wrap { max-width:760px; margin:0 auto; padding:110px 6% 80px; position:relative; z-index:2; }

.art-hero { margin-bottom:56px; }
.art-breadcrumb { display:flex; align-items:center; gap:8px; margin-bottom:24px; font-size:13px; color:var(--text-2); }
.art-breadcrumb a { color:var(--text-2); text-decoration:none; transition:color .2s; }
.art-breadcrumb a:hover { color:var(--blue); }
.art-cat { display:inline-block; font-size:11px; font-weight:700; letter-spacing:2px; text-transform:uppercase; color:var(--blue); background:rgba(99,179,237,.1); border:1px solid rgba(99,179,237,.2); border-radius:100px; padding:4px 14px; margin-bottom:20px; }
.art-title { font-size:clamp(28px,4.5vw,46px); font-weight:900; color:#fff; line-height:1.1; letter-spacing:-1.5px; margin-bottom:20px; }
.art-desc { font-size:17px; color:var(--text-2); line-height:1.75; margin-bottom:24px; }
.art-meta { display:flex; align-items:center; gap:20px; padding:18px 0; border-top:1px solid var(--border); border-bottom:1px solid var(--border); margin-bottom:40px; flex-wrap:wrap; }
.art-author { display:flex; align-items:center; gap:10px; }
.art-avatar { width:36px; height:36px; border-radius:50%; object-fit:cover; object-position:top center; border:1px solid rgba(99,179,237,.25); }
.art-author-name { font-size:14px; font-weight:600; color:var(--text); }
.art-author-title { font-size:12px; color:var(--text-3); }
.art-date, .art-read { font-size:13px; color:var(--text-3); }
.art-dot { color:var(--text-3); }

.art-body h1 { font-size:clamp(26px,4vw,38px); font-weight:900; color:#fff; line-height:1.12; letter-spacing:-1px; margin:0 0 22px; }
.art-body h2 { font-size:clamp(20px,2.8vw,26px); font-weight:800; color:#fff; letter-spacing:-.5px; line-height:1.2; margin:48px 0 16px; }
.art-body h3 { font-size:18px; font-weight:700; color:#fff; letter-spacing:-.3px; margin:32px 0 12px; }
.art-body p { font-size:16px; color:var(--text-2); line-height:1.85; margin-bottom:20px; }
.art-body p strong { color:var(--text); font-weight:600; }
.art-body a { color:var(--blue); text-decoration:none; border-bottom:1px solid rgba(99,179,237,.3); transition:border-color .2s; }
.art-body a:hover { border-color:var(--blue); }
.art-body ul, .art-body ol { margin:0 0 20px 0; padding-left:0; list-style:none; display:flex; flex-direction:column; gap:10px; }
.art-body ul li, .art-body ol li { color:var(--text-2); font-size:16px; line-height:1.75; padding-left:22px; position:relative; }
.art-body ul li::before { content:''; position:absolute; left:0; top:10px; width:6px; height:6px; border-radius:50%; background:linear-gradient(135deg,var(--blue),var(--teal)); }
.art-body ol { counter-reset:item; }
.art-body ol li { counter-increment:item; }
.art-body ol li::before { content:counter(item); position:absolute; left:0; top:1px; font-size:12px; font-weight:800; color:var(--blue); background:rgba(99,179,237,.12); border-radius:50%; width:18px; height:18px; display:flex; align-items:center; justify-content:center; line-height:1; }
.art-body blockquote, .callout { border-radius:12px; padding:22px 26px; margin:28px 0; border-left:3px solid var(--blue); background:rgba(99,179,237,.07); }
.art-body blockquote p, .callout p { margin:0; font-size:15px; line-height:1.75; }

.author-card { background:var(--bg-card); border:1px solid var(--border); border-radius:16px; padding:28px; display:flex; gap:20px; align-items:flex-start; margin-top:56px; }
.author-card-avatar { width:60px; height:60px; border-radius:50%; object-fit:cover; object-position:top center; flex-shrink:0; border:2px solid rgba(99,179,237,.25); }
.author-card-name { font-size:16px; font-weight:700; color:#fff; margin-bottom:4px; }
.author-card-role { font-size:13px; color:var(--blue); margin-bottom:10px; font-weight:500; }
.author-card-bio { font-size:14px; color:var(--text-2); line-height:1.7; }

.back-link { display:inline-flex; align-items:center; gap:8px; color:var(--text-2); text-decoration:none; font-size:14px; font-weight:500; margin-bottom:32px; transition:color .2s; }
.back-link:hover { color:var(--blue); }

@media(max-width:768px) {
  .article-wrap { padding-top:96px; }
  .author-card { flex-direction:column; }
}