.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(24px,5vw,42px); font-weight:700; color:#fff; line-height:1.3; letter-spacing:-1px; margin-bottom:20px; word-wrap:break-word; overflow-wrap:break-word; width:100%; box-sizing:border-box; }
.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:700; color:#fff; line-height:1.25; letter-spacing:-1px; margin:0 0 22px; }
.art-body h2 { font-size:clamp(20px,2.8vw,26px); font-weight:700; color:#fff; letter-spacing:-.5px; line-height:1.3; 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:700; 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; }

.author-cta { background:var(--bg-card); border:1px solid var(--border); border-radius:16px; padding:32px; margin-top:56px; display:grid; gap:32px; }
.author-info { display:flex; gap:20px; align-items:flex-start; }
.author-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-details { flex:1; }
.author-name { font-size:16px; font-weight:700; color:#fff; margin-bottom:4px; }
.author-role { font-size:13px; color:var(--blue); margin-bottom:10px; font-weight:500; }
.author-bio { font-size:14px; color:var(--text-2); line-height:1.7; margin:0; }

.cta-action { display:flex; flex-direction:column; gap:16px; padding:24px; background:rgba(99,179,237,.08); border:1px solid rgba(99,179,237,.2); border-radius:12px; }
.cta-text { font-size:15px; color:var(--text-2); line-height:1.7; margin:0; }
.cta-button { display:inline-flex; align-items:center; gap:8px; padding:12px 20px; background:linear-gradient(135deg,var(--blue),var(--teal)); color:#fff; text-decoration:none; border-radius:8px; font-weight:600; font-size:14px; transition:opacity .2s; width:fit-content; border:none; }
.cta-button:hover { opacity:0.9; }

.mid-cta { display:flex; flex-direction:column; gap:12px; padding:20px; background:rgba(99,179,237,.06); border-left:3px solid var(--blue); border-radius:8px; margin:32px 0; }
.mid-cta-text { font-size:14px; color:var(--text-2); line-height:1.7; margin:0; }
.mid-cta-link { display:inline-flex; align-items:center; gap:6px; color:var(--blue); text-decoration:none; font-weight:500; font-size:13px; transition:gap .2s; width:fit-content; }
.mid-cta-link:hover { gap:10px; }

.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; padding-left:5%; padding-right:5%; }
  .author-card { flex-direction:column; }
  .art-title { font-size:clamp(22px,5vw,36px); margin-bottom:16px; }
  .art-body h1 { font-size:clamp(22px,4vw,32px); margin:36px 0 16px; }
  .art-body h2 { font-size:clamp(18px,3.5vw,24px); margin:32px 0 12px; }
  .art-body h3 { font-size:16px; margin:24px 0 10px; }
  .art-body p { font-size:15px; }
  .art-desc { font-size:15px; }
}

@media(max-width:480px) {
  .article-wrap { padding:88px 4% 60px; }
  .progress-bar { top:60px; }
  .art-hero { margin-bottom:40px; }
  .art-breadcrumb { font-size:12px; gap:6px; margin-bottom:16px; }
  .art-cat { font-size:10px; padding:3px 10px; margin-bottom:14px; }
  .art-title { font-size:clamp(20px,5vw,30px); margin-bottom:14px; line-height:1.25; }
  .art-desc { font-size:14px; line-height:1.7; margin-bottom:18px; }
  .art-meta { gap:12px; padding:12px 0; margin-bottom:28px; font-size:12px; }
  .art-avatar { width:32px; height:32px; }
  .art-author-name { font-size:13px; }
  .art-author-title { font-size:11px; }
  .art-body h1 { font-size:clamp(20px,4vw,28px); margin:28px 0 14px; }
  .art-body h2 { font-size:clamp(16px,3.5vw,22px); margin:24px 0 10px; }
  .art-body h3 { font-size:15px; margin:18px 0 8px; }
  .art-body p { font-size:14px; line-height:1.8; margin-bottom:16px; }
  .art-body ul, .art-body ol { margin:0 0 16px 0; gap:8px; }
  .art-body ul li, .art-body ol li { font-size:14px; padding-left:20px; }
  .art-body blockquote, .callout { padding:16px 18px; margin:20px 0; font-size:14px; }
  .author-card { padding:20px; gap:14px; margin-top:40px; }
  .author-card-avatar { width:50px; height:50px; }
  .author-card-name { font-size:15px; }
  .author-card-role { font-size:12px; }
  .author-card-bio { font-size:13px; }
  .back-link { font-size:13px; margin-bottom:24px; }
}