:root{--brand:#0b5f73;--brand-d:#073f4d;--accent:#ff9f1c;--ink:#1c2430;--muted:#5d6878;--line:#e3e8ee;--bg:#f6f8fa;--card:#fff;--radius:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Inter,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand)}
a:hover{color:var(--brand-d)}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:9}

/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.topbar{background:var(--brand);color:#e6f4f7;font-size:13px;padding:6px 0;text-align:center}
.nav-row{display:flex;align-items:center;gap:20px;min-height:64px}
.logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font-size:24px;font-weight:600;letter-spacing:-.5px}
.logo b{color:var(--brand);font-weight:800}
.logo-light{color:#fff}.logo-light b{color:var(--accent)}
.mainnav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap}
.mainnav a{text-decoration:none;color:var(--ink);font-weight:600;font-size:15px;padding:8px 10px;border-radius:8px}
.mainnav a:hover{background:var(--bg);color:var(--brand)}
.nav-search input{border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:14px;width:170px;background:var(--bg)}
.menu-btn{display:none;margin-left:auto;font-size:26px;background:none;border:0;cursor:pointer;color:var(--ink)}

/* hero */
.hero{position:relative;max-height:560px;overflow:hidden;background:#0b3d4a}
.hero-img{width:100%;height:560px;object-fit:cover}
.hero-overlay{position:absolute;inset:0;display:flex;align-items:center;background:linear-gradient(90deg,rgba(4,30,38,.82) 0%,rgba(4,30,38,.45) 55%,rgba(4,30,38,0) 100%);color:#fff}
.hero h1{font-size:clamp(30px,4.5vw,54px);line-height:1.1;margin:.2em 0 .3em;max-width:640px;letter-spacing:-1px}
.hero .lead{font-size:clamp(16px,1.6vw,20px);max-width:560px;color:#e3f1f4}
.eyebrow{text-transform:uppercase;letter-spacing:2px;font-size:13px;font-weight:700;color:var(--accent);margin:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.btn{display:inline-block;background:var(--accent);color:#1d1300;font-weight:700;text-decoration:none;padding:12px 20px;border-radius:999px;border:0;cursor:pointer;font-size:15px}
.btn:hover{background:#ffb648;color:#1d1300}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

.chips{display:flex;gap:8px;overflow-x:auto;padding:18px 0 4px}
.chips a{white-space:nowrap;text-decoration:none;background:#fff;border:1px solid var(--line);padding:7px 14px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink)}
.chips a:hover{border-color:var(--brand);color:var(--brand)}

/* layout */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;padding-top:28px;padding-bottom:56px}
.section-title{font-size:22px;margin:28px 0 14px;padding-left:12px;border-left:4px solid var(--accent)}
.content>section:first-child .section-title{margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}

/* cards */
.card{background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(16,40,60,.08)}
.card-img img{aspect-ratio:16/9;object-fit:cover;width:100%}
.card-body{padding:16px 18px 18px}
.card h3{font-size:19px;line-height:1.3;margin:8px 0}
.card h3 a{text-decoration:none;color:var(--ink)}
.card h3 a:hover{color:var(--brand)}
.card p{color:var(--muted);font-size:15px;margin:0 0 10px}
.card-lg{display:grid;grid-template-columns:1.3fr 1fr}
.card-lg .card-img img{height:100%}
.card-lg h3{font-size:26px}
.card-sm h3{font-size:16px}
.pill{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--brand);background:#e4f2f5;padding:3px 9px;border-radius:999px;text-decoration:none}
.meta{font-size:13px;color:var(--muted)}
.meta a{color:var(--muted)}

/* sidebar */
.sidebar{display:flex;flex-direction:column;gap:22px}
.widget{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.widget-title{font-size:17px;margin:0 0 12px}
.ranked{list-style:none;margin:0;padding:0}
.ranked li{border-top:1px solid var(--line)}.ranked li:first-child{border-top:0}
.ranked a{display:flex;gap:12px;padding:10px 0;text-decoration:none;color:var(--ink);font-weight:600;font-size:15px;line-height:1.35}
.ranked a:hover{color:var(--brand)}
.num{flex:0 0 30px;height:30px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px}
.ranked li:first-child .num{background:var(--accent);color:#1d1300}
.mini{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-size:14px;font-weight:600;line-height:1.35;padding:8px 0}
.mini img{width:96px;height:54px;object-fit:cover;border-radius:8px;flex:0 0 96px}
.mini:hover{color:var(--brand)}
.topics{list-style:none;margin:0;padding:0}
.topics a{display:flex;justify-content:space-between;padding:7px 0;text-decoration:none;color:var(--ink);font-size:15px;border-bottom:1px dashed var(--line)}
.topics span{color:var(--muted);font-size:13px}
.widget-cta{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#e6f4f7;border:0}
.widget-cta .widget-title{color:#fff}
.widget-cta p{font-size:14px}

/* post */
.crumbs{font-size:14px;color:var(--muted);margin-bottom:8px}
.crumbs a{color:var(--muted)}
.post h1{font-size:clamp(28px,3.6vw,42px);line-height:1.15;letter-spacing:-.6px;margin:.2em 0 .3em}
.post-lead{font-size:19px;color:var(--muted);margin:0 0 10px}
.post-cover{margin:20px 0}
.post-cover img{border-radius:var(--radius);aspect-ratio:16/9;object-fit:cover;width:100%}
.tldr{background:#fff8ec;border:1px solid #ffe2b3;border-radius:var(--radius);padding:16px 20px;margin:0 0 24px}
.tldr ul{margin:8px 0 0;padding-left:20px}
.prose{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 28px 20px}
.post .prose{background:none;border:0;padding:0}
.prose h2{font-size:25px;margin:1.6em 0 .5em;line-height:1.25}
.prose h3{font-size:20px}
.prose li{margin:.3em 0}
.prose table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px;background:#fff}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:#eef5f7}
.faq{margin-top:32px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:10px 0}
.faq summary{font-weight:700;cursor:pointer}
.share{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:28px 0 12px;font-weight:600}
.share a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;text-decoration:none;font-size:14px}
.disclosure{font-size:13px;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:10px;padding:10px 14px}

/* pages */
.page-head{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;padding:36px 0}
.page-head h1{margin:0 0 6px;font-size:clamp(28px,3.4vw,40px)}
.page-head p{margin:0;color:#d6ecf1}
.page-head .crumbs,.page-head .crumbs a{color:#bfe0e8}
.empty{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:24px}
.about-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-top:32px}
.about-box h2{margin-top:0}
.big-search{display:flex;gap:8px;margin-top:14px;max-width:560px}
.big-search input{flex:1;border:0;border-radius:999px;padding:12px 18px;font-size:16px}
.empty .big-search input{border:1px solid var(--line)}
.contact-form{display:grid;gap:14px;max-width:560px;margin-top:18px}
.contact-form label{display:grid;gap:6px;font-weight:600;font-size:15px}
.contact-form input,.contact-form select,.contact-form textarea{font:inherit;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff}
.contact-form .hp{position:absolute;left:-5000px}
.small{font-size:13px;color:var(--muted)}
.notice{padding:12px 16px;border-radius:10px;margin:16px 0}.ok{background:#e7f7ee;color:#155d33}.err{background:#fdecec;color:#8a1c1c}

/* footer */
.site-footer{background:#0a2a33;color:#b9cdd3;padding:44px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.3fr 1fr;gap:32px}
.site-footer h2{color:#fff;font-size:16px;margin:0 0 12px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:6px 0}
.site-footer a{color:#d7e7eb;text-decoration:none}
.site-footer a:hover{color:var(--accent)}
.copy{border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding:18px 16px;font-size:13px;color:#8ea7ae}

@media (max-width:960px){
  .layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .card-lg{grid-template-columns:1fr}
  .menu-btn{display:block}
  .mainnav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:8px 16px 16px;border-bottom:1px solid var(--line)}
  .mainnav.open{display:flex}
  .nav-search input{width:100%}
  .nav-row{position:relative}
}
@media (max-width:600px){
  body{font-size:16px}
  .hero-img{height:460px}
  .hero-overlay{background:linear-gradient(180deg,rgba(4,30,38,.35),rgba(4,30,38,.85))}
  .footer-grid{grid-template-columns:1fr}
  .prose{padding:4px 16px 16px}
  .topbar{font-size:12px}
  .prose table{display:block;overflow-x:auto}
}