:root{
  --porcelain:#EDF2F4;
  --panel:#FFFFFF;
  --ink:#15242C;
  --muted:#5C6F78;
  --water:#0E7490;
  --water-dark:#0B5566;
  --lime:#6FA82F;
  --lime-dark:#4E7A1F;
  --alert:#C62828;
  --hazard:#E3A008;
  --line:#D3DFE4;
  --radius:14px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--porcelain);color:var(--ink);
  font:16px/1.62 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--water);text-decoration:none}
a:hover{color:var(--water-dark)}
.container{max-width:1080px;margin:0 auto;padding:0 18px}

/* header */
.hud{background:var(--panel);border-bottom:1px solid var(--line);position:relative}
.hud-strip{height:5px;background:repeating-linear-gradient(90deg,var(--water) 0 28px,var(--lime) 28px 56px,var(--hazard) 56px 84px)}
.hud-in{display:flex;align-items:center;gap:16px;max-width:1080px;margin:0 auto;padding:10px 18px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:800;letter-spacing:.04em}
.brand:hover{color:var(--ink)}
.brand img{border-radius:9px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.05;font-size:17px}
.brand-text small{font-weight:500;font-size:11px;color:var(--muted);letter-spacing:.02em;text-transform:none}
.nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap;justify-content:flex-end}
.nav a{padding:7px 10px;border-radius:8px;color:var(--ink);font-size:14px;font-weight:600;white-space:nowrap}
.nav a:hover{background:var(--porcelain);color:var(--water);text-decoration:none}
.nav a.active{background:var(--water);color:#fff}
.burger{display:none;margin-left:auto;font-size:22px;line-height:1;background:none;border:1px solid var(--line);border-radius:9px;padding:5px 10px;cursor:pointer}

/* crumbs */
.crumbs{font-size:13px;color:var(--muted);margin:16px 0 4px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--water)}
.crumbs .sep{margin:0 6px;color:var(--line)}

/* typography */
h1{font-size:clamp(26px,4.4vw,38px);line-height:1.14;margin:.3em 0 .5em;letter-spacing:.01em;text-transform:uppercase}
h2{font-size:clamp(20px,3vw,26px);margin:1.6em 0 .5em;padding-left:12px;border-left:5px solid var(--lime)}
h3{font-size:18px;margin:1.2em 0 .4em}
p{margin:.6em 0}
.muted{color:var(--muted)}
.lead{font-size:17px;color:#2C414A}

/* cards / grids */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px;margin:18px 0}
.card{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--water);border-radius:var(--radius);padding:14px;display:flex;flex-direction:column;gap:8px}
.card:hover{border-left-color:var(--lime)}
.card img{border-radius:9px;background:var(--porcelain);width:100%;aspect-ratio:1/1;object-fit:cover}
.card h3{margin:0;font-size:16px}
.card .tag{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--water)}
.card p{margin:0;font-size:14px;color:var(--muted)}
.stat{display:flex;flex-wrap:wrap;gap:6px;font-size:12px}
.stat span{background:var(--porcelain);border:1px solid var(--line);border-radius:6px;padding:2px 7px}
a.card{color:var(--ink)}
a.card:hover{color:var(--ink);text-decoration:none;box-shadow:0 8px 20px rgba(14,116,144,.12)}

/* hero / tiles */
.hero{background:linear-gradient(135deg,#FFFFFF 0%,#E6F1F3 100%);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:10px 0 20px}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:18px 0}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px;text-align:center}
.tile b{display:block;font-size:26px;color:var(--water)}
.tile span{font-size:13px;color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:7px;background:var(--water);color:#fff;border-radius:10px;padding:9px 15px;font-weight:700;font-size:14px}
.btn:hover{background:var(--water-dark);color:#fff;text-decoration:none}
.btn-sm{padding:6px 11px;font-size:13px}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}
.store-badges{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:14px 0}
.store-badges a{border:1px solid var(--line);border-radius:10px;padding:6px 12px;background:#fff}
.store-badges img{height:40px;width:auto}

/* galleries */
.gallery{display:grid;gap:14px;margin:16px 0;max-width:520px}
.gallery img{border:1px solid var(--line);border-radius:12px}

/* tables */
.table-wrap{overflow-x:auto;margin:16px 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
table.tbl,table.codes,table.specs{border-collapse:collapse;width:100%;font-size:14px}
table.tbl th,table.codes th,table.specs th{background:var(--water);color:#fff;text-align:left;padding:10px 12px;font-size:13px}
table.tbl td,table.codes td,table.specs td{border-top:1px solid var(--line);padding:10px 12px;vertical-align:top}
table.tbl tr:hover td,table.codes tr:hover td,table.specs tr:hover td{background:#F5FAFB}
.badge{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px}
.badge-green{background:#E4F1DA;color:var(--lime-dark)}
.badge-yellow{background:#FCF0D2;color:#8A6400}
.badge-red{background:#F7D9D9;color:var(--alert)}

code.copy-code{cursor:pointer;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#EAF3F5;border:1px dashed var(--water);border-radius:7px;padding:3px 9px;font-weight:700;color:var(--water-dark);display:inline-block}
code.copy-code:hover{background:#DCEDF1}
code.copy-code.copied{background:#E4F1DA;border-color:var(--lime);color:var(--lime-dark)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* steps / faq */
ol.steps{padding-left:22px}
ol.steps li{margin:.5em 0}
.faq{margin:16px 0}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin:8px 0}
.faq summary{cursor:pointer;font-weight:700}
.faq summary::marker{color:var(--lime)}

/* video */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin:16px 0}
.video-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.video-card iframe{width:100%;aspect-ratio:16/9;border:0;display:block}
.video-card .vc-body{padding:10px 12px}
.video-card h3{margin:0 0 4px;font-size:15px}
.video-card p{margin:0;font-size:12px;color:var(--muted)}

/* news */
.news-list{list-style:none;padding:0}
.news-list li{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 15px;margin:10px 0}
.news-list .v{font-weight:800;color:var(--water);margin-right:8px}
.news-list .d{font-size:12px;color:var(--muted)}

/* breadcrumb json etc */
.note{background:#FFF8E6;border:1px solid #F0DFAE;border-radius:12px;padding:10px 14px;font-size:14px;margin:14px 0}
.related{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.related a{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:6px 11px;font-size:13px}

/* footer */
.foot{background:var(--panel);border-top:1px solid var(--line);margin-top:40px}
.foot-in{padding:18px}
.foot-links{display:flex;flex-wrap:wrap;gap:6px;font-size:14px}
.disclaimer{font-size:11px;color:var(--muted);margin:10px 0 0}

/* prev/next */
.pn{display:flex;justify-content:space-between;gap:12px;margin:24px 0;flex-wrap:wrap}
.pn a{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-weight:600;font-size:14px}

@media(max-width:760px){
  .hud-in{flex-wrap:wrap}
  .burger{display:block}
  .nav{display:none;flex-basis:100%;flex-direction:column;margin:8px 0 0;gap:2px}
  .nav.open{display:flex}
  .nav a{padding:10px 12px;border-radius:9px}
  .brand-text small{display:none}
}
@media(max-width:640px){
  table.codes thead{display:none}
  table.codes tr{display:block;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:8px;background:#fff}
  table.codes td{display:block;border:0;padding:5px 6px}
  table.codes td::before{content:attr(data-label);display:block;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:2px}
}
.ph{display:flex;align-items:center;justify-content:center;aspect-ratio:1/1;border-radius:9px;background:repeating-linear-gradient(45deg,#E3EDF0 0 12px,#D8E6EA 12px 24px);color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:13px}