:root{
  --red:#c8102e;
  --red-dark:#a30d25;
  --ink:#121316;
  --charcoal:#1b1d21;
  --muted:#6e737a;
  --line:#e2e3e5;
  --soft:#f6f6f5;
  --white:#ffffff;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:"Helvetica Neue",Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
h1,h2,h3,h4{margin:0 0 .7em;line-height:1.08;letter-spacing:-.035em}
h1,h2{font-weight:700}
p{margin:0 0 1.15rem}
.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:18px;top:18px;z-index:9999;background:#fff;padding:12px 16px;border:2px solid var(--red)}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.header-inner{height:82px;display:flex;align-items:center;gap:34px}
.wordmark{display:flex;align-items:center;min-width:max-content}
.wordmark-bar{width:4px;height:38px;background:var(--red);margin-right:14px}
.wordmark-copy{display:flex;flex-direction:column}
.wordmark-copy strong{font-size:.95rem;letter-spacing:.105em;text-transform:uppercase;line-height:1.05}
.wordmark-copy span{font-size:.61rem;letter-spacing:.11em;text-transform:uppercase;color:#7b8087;margin-top:6px}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:28px;font-size:.8rem;font-weight:700}
.main-nav>a,.nav-drop>button{padding:30px 0;border:0;background:none;cursor:pointer;color:#2d3035}
.main-nav>a:hover,.nav-drop>button:hover{color:var(--red)}
.nav-drop{position:relative}
.nav-drop-panel{position:absolute;top:69px;right:-160px;width:660px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--red);box-shadow:0 24px 56px rgba(15,17,20,.12);padding:22px;display:none;grid-template-columns:repeat(3,1fr);gap:2px}
.nav-drop:hover .nav-drop-panel,.nav-drop:focus-within .nav-drop-panel{display:grid}
.nav-drop-panel a{padding:10px 12px;font-size:.78rem;font-weight:650}
.nav-drop-panel a:hover{background:#f7f7f7;color:var(--red)}
.header-actions{display:flex;gap:8px}
.mobile-toggle{display:none;border:0;background:none;font-size:1.5rem}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid transparent;font-size:.76rem;font-weight:800;letter-spacing:.055em;text-transform:uppercase;transition:.18s ease}
.btn-primary{background:var(--red);color:#fff}.btn-primary:hover{background:var(--red-dark)}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:#000}
.btn-light{background:#fff;border-color:#d4d6d9;color:#151619}.btn-light:hover{border-color:#151619}
.btn-outline-dark{border-color:#50545a;color:#fff;background:transparent}.btn-outline-dark:hover{background:#fff;color:#111;border-color:#fff}

/* Common */
.section{padding:96px 0}
.section-soft{background:var(--soft)}
.eyebrow{font-size:.68rem;font-weight:800;letter-spacing:.17em;text-transform:uppercase;color:var(--red);margin-bottom:17px}
.section-heading{max-width:720px;margin:0 auto 52px;text-align:center}
.section-heading h2{font-size:clamp(2.35rem,4vw,4.1rem);margin-bottom:18px}
.section-heading p{color:var(--muted);font-size:1rem;margin:0}
.section-link{text-align:center;margin-top:34px}

/* Hero: strict 50/50 */
.hero{background:#121417;color:#fff}
.hero-inner{width:min(100%,1440px);margin:auto;display:grid;grid-template-columns:1fr 1fr;min-height:660px}
.hero-copy{display:flex;align-items:center}
.hero-copy-inner{width:min(100% - 48px,590px);margin-left:auto;padding:78px 62px 78px 24px}
.hero-kicker{font-size:.69rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:#d4d7dc;margin-bottom:24px}
.hero-kicker:before{content:"";display:inline-block;width:38px;height:3px;background:var(--red);margin-right:12px;vertical-align:middle}
.hero h1{font-size:clamp(3.4rem,5.6vw,6.1rem);letter-spacing:-.055em;margin-bottom:25px}
.hero h1 span{display:block;color:#bfc3c8;font-weight:400}
.hero-lead{font-size:1.08rem;color:#b8bdc4;max-width:570px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.hero-photo{position:relative;min-height:660px;overflow:hidden}
.hero-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,20,23,.18),transparent 35%)}

/* Equal credibility columns */
.credibility{border-bottom:1px solid var(--line);background:#fff}
.credibility-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.credibility-item{padding:27px 28px;border-right:1px solid var(--line);text-align:center}
.credibility-item:last-child{border-right:0}
.credibility-item strong{display:block;font-size:.87rem;margin-bottom:4px}
.credibility-item span{font-size:.75rem;color:var(--muted)}

/* Services: equal 3x2 */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.service-card{min-height:230px;padding:30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;background:#fff;transition:.18s}
.service-card:hover{background:#fafafa}
.service-card .num{font-size:.68rem;font-weight:800;letter-spacing:.13em;color:var(--red)}
.service-card h3{font-size:1.35rem;margin:30px 0 12px}
.service-card p{font-size:.89rem;color:var(--muted);margin:0}
.service-card .go{margin-top:auto;padding-top:24px;color:var(--red);font-size:1.15rem}

/* Technical section: balanced 50/50 */
.feature{display:grid;grid-template-columns:1fr 1fr;min-height:580px;background:var(--charcoal);color:#fff}
.feature-photo{min-height:580px}
.feature-photo img{width:100%;height:100%;object-fit:cover}
.feature-copy{display:flex;align-items:center}
.feature-copy-inner{max-width:590px;padding:76px 24px 76px 70px}
.feature-copy h2{font-size:clamp(2.4rem,4vw,4rem);margin-bottom:20px}
.feature-copy p{color:#b8bdc4}
.feature-points{margin:30px 0;border-top:1px solid #35383d}
.feature-point{padding:17px 0;border-bottom:1px solid #35383d;display:grid;grid-template-columns:150px 1fr;gap:20px}
.feature-point strong{font-size:.84rem}
.feature-point span{font-size:.83rem;color:#9fa5ad}

/* Models: equal 4-up */
.model-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.model-card{position:relative;aspect-ratio:4/5;overflow:hidden;background:#181a1e;color:#fff}
.model-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.35s}
.model-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 48%,rgba(10,11,13,.86))}
.model-card:hover img{transform:scale(1.025)}
.model-info{position:absolute;z-index:2;left:22px;right:22px;bottom:20px}
.model-info small{display:block;font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:#d2d5da;margin-bottom:6px}
.model-info h3{font-size:1.35rem;margin:0}
.model-links{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:26px}
.model-links a{font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:9px 12px;border:1px solid #d9dade;background:#fff}
.model-links a:hover{border-color:var(--red);color:var(--red)}

/* Articles: only three equal items */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{border-top:3px solid #202226;padding:24px 0 0}
.article-card small{font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--red);font-weight:800}
.article-card h3{font-size:1.28rem;margin:16px 0 10px}
.article-card p{font-size:.88rem;color:var(--muted)}
.article-card:hover{border-color:var(--red)}
.article-card:hover h3{color:var(--red)}

/* CTA / footer */
.cta-panel{background:var(--red);color:#fff}
.cta-panel .container{min-height:220px;display:flex;align-items:center;justify-content:space-between;gap:50px}
.cta-panel h2{font-size:clamp(2.3rem,4vw,4rem);max-width:720px;margin:0}
.cta-panel p{color:#f1d9df;margin:.7rem 0 0}
.cta-panel .btn{background:#fff;color:#111}
.site-footer{background:#0d0f12;color:#a9afb7;padding:60px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:50px}
.footer-brand p{font-size:.86rem;max-width:370px;margin-top:20px}
.site-footer h3{font-size:.7rem;text-transform:uppercase;letter-spacing:.13em;color:#fff;margin-bottom:16px}
.site-footer a{display:block;font-size:.82rem;color:#bcc1c7;margin:9px 0}
.site-footer a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:28px;border-top:1px solid #292c31;margin-top:44px;padding-top:20px;font-size:.7rem;color:#757b84}
.footer-note{max-width:690px;text-align:right}

/* Inner pages: simpler, calmer */
.page-hero{background:#15171a;color:#fff;padding:76px 0 66px;border-bottom:3px solid var(--red)}
.page-hero .breadcrumbs{font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:#8f949c;margin-bottom:20px}
.breadcrumbs a{color:#c9cdd2}
.page-hero h1{font-size:clamp(2.8rem,4.8vw,5rem);max-width:920px}
.page-hero p{font-size:1.03rem;color:#b8bdc3;max-width:720px;margin:0}
.post-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:.7rem;color:#878d95;text-transform:uppercase;letter-spacing:.05em;margin-top:18px}
.content-wrap{display:grid;grid-template-columns:minmax(0,790px) 300px;justify-content:space-between;gap:70px;padding:76px 0 92px}
.prose{font-size:1rem}
.prose h2{font-size:clamp(1.9rem,3vw,2.9rem);margin-top:1.55em}
.prose h3{font-size:1.4rem;margin-top:1.7em}
.prose p,.prose li{color:#42464c}
.prose ul{padding-left:1.2rem}
.prose li{margin:.45rem 0}
.inpage-image{margin:34px 0}
.inpage-image img{width:100%;height:min(470px,52vw);object-fit:cover}
.notice{border-left:3px solid var(--red);background:#f6f6f5;padding:19px 21px;margin:28px 0}
.sidebar-card{position:sticky;top:105px;border:1px solid var(--line);border-top:3px solid var(--red);padding:26px;background:#fff}
.sidebar-card h3{font-size:1.35rem}
.sidebar-card p{color:var(--muted);font-size:.86rem}
.sidebar-card .btn{width:100%;margin-top:8px}
.sidebar-card .btn-light{background:#fff;border-color:#d2d5d8;color:#111}
.mini-links{margin-top:20px;padding-top:14px;border-top:1px solid var(--line)}
.mini-links a{display:block;padding:7px 0;font-size:.78rem;font-weight:650}
.mini-links a:hover{color:var(--red)}
.faq{border-top:1px solid var(--line);padding:18px 0}
.faq summary{font-weight:700;cursor:pointer}
.faq p{padding-top:10px;color:var(--muted)}
.directory{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.directory a{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);font-weight:700}
.directory a small{display:block;color:var(--muted);font-weight:400;margin-top:5px}
.directory a:hover{background:#fafafa;color:var(--red)}
.pill-list{display:flex;flex-wrap:wrap;gap:8px}
.pill-list a{border:1px solid #d7d9dc;padding:9px 12px;font-size:.75rem;font-weight:700}
.pill-list a:hover{border-color:var(--red);color:var(--red)}
.backtop{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border:0;background:#17191d;color:#fff;opacity:0;pointer-events:none;z-index:70;transition:.2s}
.backtop.show{opacity:1;pointer-events:auto}
.backtop:hover{background:var(--red)}

@media(max-width:1050px){
  .main-nav{display:none}.mobile-toggle{display:block;margin-left:auto}
  .header-actions .btn-light{display:none}
  .hero-inner{grid-template-columns:1fr}.hero-copy-inner{width:min(calc(100% - 48px),var(--max));margin:auto;padding:70px 0}.hero-photo{min-height:430px}
  .credibility-grid{grid-template-columns:repeat(2,1fr)}.credibility-item:nth-child(2){border-right:0}.credibility-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .feature{grid-template-columns:1fr}.feature-photo{min-height:430px}.feature-copy-inner{max-width:var(--max);padding:66px 30px;margin:auto}
  .model-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .content-wrap{grid-template-columns:1fr}.sidebar-card{position:relative;top:0;max-width:500px}
}
@media(max-width:700px){
  .container{width:min(calc(100% - 28px),var(--max))}
  .header-inner{height:74px}.header-actions{display:none}.wordmark-copy strong{font-size:.8rem}.wordmark-copy span{font-size:.55rem}
  .section{padding:68px 0}.section-heading{margin-bottom:36px}
  .hero-copy-inner{width:calc(100% - 28px);padding:54px 0}.hero h1{font-size:clamp(3rem,14vw,4.7rem)}.hero-photo{min-height:320px}
  .credibility-grid{grid-template-columns:1fr}.credibility-item,.credibility-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.credibility-item:last-child{border-bottom:0}
  .services-grid{grid-template-columns:1fr}.service-card{min-height:auto}
  .feature-photo{min-height:300px}.feature-copy-inner{padding:54px 22px}.feature-point{grid-template-columns:1fr;gap:5px}
  .model-grid,.article-grid{grid-template-columns:1fr}.model-card{aspect-ratio:16/10}
  .cta-panel .container{display:block;padding:48px 0}.cta-panel .btn{margin-top:22px}
  .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-note{text-align:left;margin-top:14px}
  .content-wrap{padding:52px 0 70px;gap:38px}.directory{grid-template-columns:1fr}.page-hero{padding:54px 0 48px}
}