/* blog.css — consolidated stylesheet: one definition per selector, cascade resolved, dead and unused code removed. Verified rendering-neutral by computed-style diff. */
:root{--cs-bg:#050c26;--cs-panel:#0a204c;--cs-panel2:#0d245b;--cs-line:#1b66ca;--cs-cyan:#23d7ff;--cs-cyan2:#28d8ff;--cs-text:#fff;--cs-muted:#d5e4ff;--cs-header-h:74px;--cs-sticky-top:calc(var(--cs-header-h) + 10px)}
body{background:var(--cs-bg)}
.breadcrumbs{font-size:12px;color:#9bb9e3;padding:18px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumbs a{color:#7fd8ff;font-weight:700}
.breadcrumbs a:hover{text-decoration:underline}
.breadcrumbs .sep{opacity:.6}
.blog-hero{position:relative;padding:64px 0 46px;background:linear-gradient(180deg,#071633,#050c26);border-bottom:3px solid #1c7dff;overflow:hidden}
.blog-hero:after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;background:linear-gradient(90deg,#15caff,#903aff,#ff4ee6,#1dceff);box-shadow:0 0 18px #1e9bff}
.blog-hero h1{font-size:clamp(34px,4.6vw,58px);line-height:1.02;letter-spacing:-.04em;margin:10px 0 12px}
.blog-hero h1 span{background:linear-gradient(90deg,#29f7ff,#3f9bff,#c13aff);background-clip:text;-webkit-background-clip:text;color:transparent}
.blog-hero p{max-width:720px;color:var(--cs-muted);font-size:16px}
.cat-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:26px 0 6px}
.cat-card{display:block;background:linear-gradient(160deg,var(--cs-panel2),#03102d);border:1px solid var(--cs-line);border-radius:14px;padding:16px 16px 14px;transition:transform .2s,border-color .2s}
.cat-card:hover{transform:translateY(-3px);border-color:#31c9ff}
.cat-card b{display:block;font-size:15px;line-height:1.25;margin-bottom:5px}
.cat-card span{font-size:12px;color:#9bb9e3}
.cat-card.active{border-color:#31c9ff;background:linear-gradient(160deg,#123a86,#061a44)}
.blog-toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin:22px 0 6px}
.blog-search{display:flex;align-items:center;gap:8px;border:1px solid #168cff;border-radius:30px;padding:6px 8px 6px 16px;background:#04102f}
.blog-search input{background:none;border:0;color:#fff;outline:0;font-size:13px;width:210px}
.blog-search button{border:0;background:linear-gradient(135deg,#43a7ff,#135ce7);color:#fff;border-radius:20px;padding:6px 14px;font-weight:800;font-size:12px}
.filter-chips{display:flex;gap:8px;flex-wrap:wrap}
.filter-chips button{background:#103a7d;border:1px solid #277ce0;color:#fff;border-radius:20px;padding:6px 14px;font-size:12px;font-weight:700}
.filter-chips button.active{background:linear-gradient(135deg,#43a7ff,#135ce7);border-color:#31c9ff}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:18px 0 8px}
.post-card{display:flex;flex-direction:column;background:linear-gradient(165deg,#0c2555,#07102c);border:1px solid var(--cs-line);border-radius:16px;overflow:hidden;transition:transform .2s,border-color .2s}
.post-card:hover{transform:translateY(-3px);border-color:#31c9ff}
.post-card img{width:100%;height:180px;object-fit:cover}
.post-card .pc-body{padding:16px 17px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.pc-cat{align-self:flex-start;font-size:10px;font-weight:900;letter-spacing:.14em;text-transform:uppercase;color:#051542;background:linear-gradient(90deg,#29f7ff,#3f9bff);border-radius:20px;padding:3px 10px}
.post-card h3{font-size:17px;line-height:1.3;margin:2px 0 0}
.post-card h3 a:hover{color:var(--cs-cyan)}
.post-card p{font-size:13px;color:var(--cs-muted);margin:0;flex:1}
.pc-more{font-size:12px;font-weight:800;color:#7fd8ff}
.no-results{display:none;border:1px dashed #277ce0;border-radius:12px;padding:22px;text-align:center;color:#9bb9e3;margin:18px 0}
.pagination{display:flex;gap:8px;justify-content:center;align-items:center;margin:26px 0 8px;flex-wrap:wrap}
.pagination button{background:#103a7d;border:1px solid #277ce0;color:#fff;border-radius:10px;min-width:40px;height:40px;padding:0 12px;font-weight:800;font-size:13px}
.pagination button.active{background:linear-gradient(135deg,#43a7ff,#135ce7);border-color:#31c9ff}
.pagination button:disabled{opacity:.45;cursor:default}
.article-wrap{padding:10px 0 60px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;margin-top:8px}
.article-main{background:linear-gradient(180deg,#081a42,#06122e);border:1px solid #174a8f;border-radius:18px;padding:34px 36px;min-width:0}
.article-main .kicker{margin-bottom:6px}
.article-main h1{font-size:clamp(28px,3.4vw,40px);line-height:1.14;letter-spacing:-.03em;margin:4px 0 14px}
.article-meta{font-size:12px;color:#9bb9e3;border-bottom:1px solid #174a8f;padding-bottom:14px;margin-bottom:20px;display:flex;gap:14px;flex-wrap:wrap}
.article-main h2{font-size:24px;line-height:1.25;margin:30px 0 10px;letter-spacing:-.02em}
.article-main h3{font-size:18px;margin:22px 0 8px}
.article-main p{color:var(--cs-muted);margin:0 0 14px;line-height:1.75}
.article-main ul{color:var(--cs-muted);line-height:1.75;margin:0 0 14px;padding-left:22px}
.article-main ol{color:var(--cs-muted);line-height:1.75;margin:0 0 14px;padding-left:22px}
.article-main li{margin:5px 0}
.article-main a{color:#7fd8ff;font-weight:700}
.article-main a:hover{text-decoration:underline}
.article-main img{border-radius:14px;border:1px solid #2783ff;margin:18px 0;width:100%}
.article-main table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px;display:block;overflow-x:auto}
.article-main th{border:1px solid #1b66ca;padding:9px 12px;text-align:left;white-space:normal;color:#fff;background:#0d2c66}
.article-main td{border:1px solid #1b66ca;padding:9px 12px;text-align:left;color:var(--cs-muted);white-space:normal}
.article-main .note{background:#0a2a5e;border:1px solid #277ce0;border-left:4px solid var(--cs-cyan);border-radius:10px;padding:14px 16px;margin:18px 0}
.article-main .note p{margin:0}
.article-main .steps-list{counter-reset:step;list-style:none;padding-left:0}
.article-main .steps-list li{counter-increment:step;position:relative;padding-left:44px;margin:12px 0}
.article-main .steps-list li:before{content:counter(step);position:absolute;left:0;top:1px;width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,#43a7ff,#135ce7);color:#fff;font-weight:900;display:grid;place-items:center;font-size:14px}
.article-faq details{border:1px solid #1e65c6;border-radius:10px;margin-bottom:10px;background:#0b2049}
.article-faq summary{padding:13px 16px;cursor:pointer;font-weight:800}
.article-faq details p{padding:0 16px 14px;font-size:14px}
.dl-box{background:linear-gradient(125deg,#082e76,#06132f);border:2px solid #2d9bff;border-radius:16px;padding:20px;margin:22px 0;text-align:center}
.dl-box h3{margin:0 0 6px}
.dl-box p{font-size:13px}
.article-side{min-width:0}
.side-inner{position:sticky;top:var(--cs-sticky-top);display:flex;flex-direction:column;gap:16px;will-change:top}
.side-box{background:linear-gradient(165deg,#0c2555,#07102c);border:1px solid var(--cs-line);border-radius:14px;padding:16px 17px}
.side-box h3{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--cs-cyan2);margin:0 0 10px}
.side-box h4{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--cs-cyan2);margin:0 0 10px}
.side-box ul{list-style:none;margin:0;padding:0}
.side-box li{margin:7px 0;font-size:13.5px;line-height:1.45}
.side-box a{color:var(--cs-muted)}
.side-box a:hover{color:var(--cs-cyan)}
.toc-list a.active{color:var(--cs-cyan);font-weight:800}
.side-box .rel-item{display:flex;gap:10px;margin:10px 0}
.side-box .rel-item img{width:64px;height:48px;object-fit:cover;border-radius:8px;border:1px solid #2783ff;flex-shrink:0}
.side-box .rel-item a{font-size:13px;line-height:1.4;font-weight:700;color:#e7efff}
.related-row{margin-top:34px}
.related-row h2{font-size:22px;margin:0 0 14px}
.page-main{background:linear-gradient(180deg,#081a42,#06122e);border:1px solid #174a8f;border-radius:18px;padding:34px 36px;margin:16px 0 60px}
.page-main h1{font-size:clamp(28px,3.4vw,38px);margin:0 0 16px;letter-spacing:-.02em}
.page-main h2{font-size:21px;margin:26px 0 8px}
.page-main p{color:var(--cs-muted);line-height:1.75}
.page-main li{color:var(--cs-muted);line-height:1.75}
.page-main a{color:#7fd8ff;font-weight:700}
@media (max-width:1100px){
.cat-nav{grid-template-columns:repeat(2,1fr)}
.card-grid{grid-template-columns:repeat(2,1fr)}
.article-grid{grid-template-columns:minmax(0,1fr) 280px}
}
@media (max-width:900px){
.article-grid{grid-template-columns:1fr}
.side-inner{position:static}
.article-main{padding:26px 20px}
.page-main{padding:26px 20px}
}
@media (max-width:760px){
.card-grid{grid-template-columns:1fr}
.blog-search input{width:150px}
}
@media (max-width:520px){
.cat-nav{grid-template-columns:1fr}
.post-card img{height:160px}
}