:root{
  --navy:#0A2240; --navy2:#0D2B4D; --gold:#BFA76F; --gold-soft:#d6c396;
  --bg:#F2F2F2; --border:#E5E7EB; --text:#333; --muted:#6B7280;
  --font-h:'Montserrat',system-ui,sans-serif; --font-b:'Open Sans',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-b);color:var(--text);background:#fff;font-size:17px;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1100px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:760px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;height:70px;background:rgba(255,255,255,.95);backdrop-filter:blur(6px);border-bottom:1px solid var(--border);z-index:50}
.header-inner{height:70px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-family:var(--font-h);font-weight:800;font-size:20px;color:var(--navy)}
.brand-sub{font-size:10.5px;color:var(--muted);letter-spacing:.01em}
.site-nav{display:flex;gap:32px;font-family:var(--font-h);font-weight:600;font-size:14px}
.site-nav a{color:var(--text);transition:color .2s}
.site-nav a:hover{color:var(--navy)}
.site-nav a.active{color:var(--navy);border-bottom:2px solid var(--gold);padding-bottom:4px}
@media(max-width:640px){.brand-sub{display:none}.site-nav{gap:18px}}

/* ---------- blog index ---------- */
.blog-hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 70%,#123a66 100%);color:#fff;margin-top:70px;padding:84px 0 72px;position:relative;overflow:hidden}
.blog-hero:after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;border:1px solid rgba(191,167,111,.35)}
.blog-hero:before{content:"";position:absolute;right:-40px;top:-40px;width:260px;height:260px;border-radius:50%;border:1px solid rgba(191,167,111,.5)}
.blog-hero h1{font-family:var(--font-h);font-weight:800;font-size:clamp(32px,5vw,48px);margin-bottom:14px}
.blog-hero p{max-width:560px;color:#cbd5e1;font-size:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:28px;padding:56px 0 72px}
.card{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 1px 3px rgba(10,34,64,.08);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(10,34,64,.14)}
.card-img{aspect-ratio:1200/630;background:var(--navy)}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.chip{display:inline-block;align-self:flex-start;font-family:var(--font-h);font-weight:600;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--navy);background:rgba(191,167,111,.18);border:1px solid rgba(191,167,111,.45);padding:4px 10px;border-radius:999px}
.card h2{font-family:var(--font-h);font-weight:700;font-size:19px;line-height:1.35;color:var(--navy)}
.excerpt{font-size:14.5px;color:var(--muted);flex:1}
.card-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted)}
.dot{color:var(--gold)}
.readmore{margin-left:auto;font-family:var(--font-h);font-weight:600;font-size:12.5px;color:var(--gold);white-space:nowrap}

/* ---------- article ---------- */
.article-hero{margin-top:70px;background:linear-gradient(180deg,var(--bg) 0%,#fff 100%);padding:40px 0 0}
.article-hero img{border-radius:16px;box-shadow:0 16px 40px rgba(10,34,64,.18)}
.article-head{padding:36px 0 8px;text-align:center}
.article-head h1{font-family:var(--font-h);font-weight:800;font-size:clamp(28px,4.5vw,40px);line-height:1.25;color:var(--navy);margin:16px 0 14px}
.article-meta{display:flex;justify-content:center;gap:10px;font-size:14px;color:var(--muted)}
.article-body{padding:28px 0 8px}
.article-body p{margin:0 0 22px}
.article-body h2{font-family:var(--font-h);font-weight:700;color:var(--navy);font-size:24px;margin:40px 0 16px}
.article-body h3{font-family:var(--font-h);font-weight:700;color:var(--navy2);font-size:19px;margin:30px 0 12px}
.article-body strong{color:var(--navy)}
.article-body ul,.article-body ol{margin:0 0 22px 22px}
.article-body li{margin-bottom:10px}
.article-body ul li::marker{color:var(--gold)}
.article-body blockquote{border-left:3px solid var(--gold);background:var(--bg);padding:18px 24px;border-radius:0 12px 12px 0;margin:0 0 24px;font-style:italic;color:var(--navy2)}
.article-body .keybox{background:var(--navy);color:#e5e7eb;border-radius:14px;padding:24px 28px;margin:8px 0 28px}
.article-body .keybox h3{color:var(--gold);margin:0 0 10px;font-size:15px;letter-spacing:.08em;text-transform:uppercase}
.article-body .keybox ul{margin:0 0 0 20px}
.article-body .keybox li::marker{color:var(--gold)}
.article-body .keybox strong{color:#fff}

/* ---------- author / footer ---------- */
.author-box{display:flex;gap:20px;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:22px 26px;margin:36px 0 8px}
.author-box img{width:72px;height:72px;border-radius:50%;object-fit:cover;border:2px solid var(--gold)}
.author-name{font-family:var(--font-h);font-weight:700;color:var(--navy);margin-bottom:4px}
.author-bio{font-size:13.5px;color:var(--muted);line-height:1.55}
.backlink{padding:26px 0 60px;font-family:var(--font-h);font-weight:600;font-size:14px}
.backlink a{color:var(--gold)}
.backlink a:hover{color:var(--navy)}
.site-footer{background:var(--navy);color:#cbd5e1;text-align:center;padding:48px 0}
.footer-title{font-family:var(--font-h);font-weight:800;font-size:20px;color:#fff;margin-bottom:8px}
.footer-tag{font-size:14px;margin-bottom:18px;color:#94a3b8}
.footer-copy{font-size:12.5px;color:#64748b}
.footer-copy a{color:var(--gold)}
.filterbar{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 -18px}
.filterbar button{font-family:var(--font-h);font-weight:600;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--navy);background:#fff;border:1px solid var(--border);padding:9px 16px;border-radius:999px;cursor:pointer;transition:border-color .15s,background .15s,color .15s}
.filterbar button:hover{border-color:var(--gold)}
.filterbar button.active{background:var(--navy);border-color:var(--navy);color:#fff}
.filterbar button.active .count{color:var(--gold)}
.filterbar .count{color:#94a3b8;font-weight:600;margin-left:4px}
.searchbox{position:relative;max-width:420px;margin:44px 0 0}
.searchbox svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:#94a3b8;pointer-events:none}
.searchbox input{width:100%;font-family:var(--font-b);font-size:15px;color:var(--text);background:#fff;border:1px solid var(--border);border-radius:999px;padding:11px 20px 11px 46px;outline:none;transition:border-color .15s,box-shadow .15s}
.searchbox input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(191,167,111,.18)}
.searchbox input::placeholder{color:#94a3b8}
.searchbox+.filterbar{margin-top:16px}
.noresults{text-align:center;color:var(--muted);font-size:16px;padding:0 0 72px}
.cta-box{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;background:linear-gradient(135deg,var(--navy),var(--navy2));border-radius:14px;padding:28px 32px;margin:36px 0}
.cta-title{font-family:var(--font-h);font-weight:700;font-size:19px;color:#fff;margin-bottom:4px}
.cta-sub{color:#cbd5e1;font-size:14.5px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-gold{font-family:var(--font-h);font-weight:600;font-size:13px;letter-spacing:.05em;text-transform:uppercase;background:var(--gold);color:var(--navy);padding:12px 22px;border-radius:8px;text-decoration:none;transition:background .15s}
.btn-gold:hover{background:var(--gold-soft)}
.btn-ghost{font-family:var(--font-h);font-weight:600;font-size:13px;letter-spacing:.05em;text-transform:uppercase;border:1px solid rgba(191,167,111,.6);color:#fff;padding:11px 22px;border-radius:8px;text-decoration:none;transition:border-color .15s}
.btn-ghost:hover{border-color:var(--gold)}
.related{margin:8px 0 12px}
.related h3{font-family:var(--font-h);font-weight:700;font-size:22px;color:var(--navy);margin-bottom:2px}
.related .grid{padding:24px 0 8px}
.pagination{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;padding:0 0 64px}
.pagination a{font-family:var(--font-h);font-weight:600;font-size:14px;color:var(--navy);background:#fff;border:1px solid var(--border);min-width:40px;text-align:center;padding:9px 12px;border-radius:8px;text-decoration:none;transition:border-color .15s}
.pagination a:hover{border-color:var(--gold)}
.pagination a.current{background:var(--navy);border-color:var(--navy);color:#fff}
.pagination .page-arrow{padding:9px 16px}
.share-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px;border-top:1px solid var(--border);margin-top:36px;padding-top:22px}
.share-row>span{font-family:var(--font-h);font-weight:600;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-right:4px}
.share-btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-h);font-weight:600;font-size:13px;color:var(--navy);background:#fff;border:1px solid var(--border);padding:9px 16px;border-radius:8px;text-decoration:none;cursor:pointer;transition:border-color .15s}
.share-btn:hover{border-color:var(--gold)}
.share-btn svg{width:16px;height:16px}