:root{
  --navy-950:#081323;
  --navy-900:#0d1b2f;
  --navy-800:#142942;
  --ink:#142033;
  --ink-soft:#344258;
  --muted:#68758a;
  --surface-warm:#f6f5f1;
  --surface:#ffffff;
  --surface-cool:#f1f5f9;
  --line:#dfe5ec;
  --line-dark:#cad3df;
  --accent-blue:#1769e8;
  --accent-blue-2:#0c55c7;
  --accent-soft:#e9f1ff;
  --success:#0f7658;
  --warning:#8a5a08;
  --shadow-soft:0 12px 36px rgba(20,32,51,.08);
  --shadow-card:0 4px 18px rgba(20,32,51,.055);
  --radius-xl:28px;
  --radius-lg:20px;
  --radius-md:15px;
  --radius-sm:11px;
  --max:1180px;
  --reading:740px;
  --header-h:72px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--surface-warm)}
body{margin:0;background:var(--surface-warm);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
body.modal-open{overflow:hidden}
a{color:inherit}
button,input{font:inherit}
button{color:inherit}
img{max-width:100%}
::selection{background:#cfe0ff;color:var(--navy-950)}
:focus-visible{outline:3px solid rgba(23,105,232,.28);outline-offset:3px}
.wrap{width:min(var(--max),calc(100% - 40px));margin-inline:auto}

/* Header */
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid rgba(202,211,223,.72)}
.nav{height:var(--header-h);display:flex;align-items:center;gap:30px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;white-space:nowrap}
.brand-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--navy-950);color:#fff;font-size:11px;font-weight:900;letter-spacing:.04em;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.brand-word{font-size:20px;font-weight:760;letter-spacing:-.045em;color:var(--navy-950)}
.brand-word strong{font-weight:900;color:var(--accent-blue)}
.navlinks{margin-left:auto;display:flex;align-items:center;gap:4px}
.navlinks a{display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;text-decoration:none;font-size:14px;font-weight:670;color:#3c4a5f;transition:background .18s ease,color .18s ease}
.navlinks a:hover{background:#f1f4f7;color:var(--navy-950)}
.nav-actions{display:flex;align-items:center;gap:8px}
.search-open,.nav-toggle{min-height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;cursor:pointer;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}
.search-open{display:flex;align-items:center;gap:8px;padding:0 14px;font-size:14px;font-weight:760}
.search-open:hover{border-color:#bfc9d7;box-shadow:var(--shadow-card)}
.search-open>span:first-child{font-size:20px;line-height:1;transform:rotate(-10deg)}
.nav-toggle{width:44px;display:none;place-items:center;padding:0;position:relative}
.nav-toggle span{position:absolute;width:18px;height:1.5px;background:var(--navy-950);transition:.18s ease}
.nav-toggle span:first-child{transform:translateY(-4px)}
.nav-toggle span:last-child{transform:translateY(4px)}
.nav-toggle[aria-expanded="true"] span:first-child{transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:rotate(-45deg)}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-nav.open{display:block}
.mobile-nav .wrap{padding:10px 0 16px}
.mobile-nav a{display:flex;align-items:center;min-height:46px;text-decoration:none;border-bottom:1px solid #eef1f4;font-weight:720;color:#334154}

/* Shared type and controls */
.eyebrow,.section-kicker,.sidebar-label{display:inline-block;text-transform:uppercase;letter-spacing:.095em;font-size:11px;font-weight:900;color:var(--accent-blue)}
.eyebrow-light{color:#8fb8ff}
.category-chip{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent-blue-2);font-size:11px;font-weight:900;letter-spacing:.06em;text-transform:uppercase}
.button-primary,.button-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 17px;border-radius:12px;text-decoration:none;font-weight:820}
.button-primary{background:var(--accent-blue);color:#fff}
.button-secondary{background:#fff;border:1px solid var(--line-dark);color:var(--navy-950)}
.text-link{font-weight:820;text-decoration:none}
.text-link.light{color:#fff}
.arrow{margin-left:auto;color:var(--muted)}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:32px;margin-bottom:26px}
.section-heading h2{font-size:clamp(30px,4vw,43px);line-height:1.08;letter-spacing:-.045em;margin:7px 0 0;max-width:720px}
.section-heading>p{max-width:420px;color:var(--muted);margin:0}

/* Premium home hero */
.premium-hero{position:relative;overflow:hidden;background:var(--navy-950);color:#fff;padding:78px 0 68px}
.premium-hero::before{content:"";position:absolute;inset:auto -12% -50% auto;width:640px;height:640px;border-radius:50%;border:110px solid rgba(50,113,220,.08)}
.premium-hero::after{content:"";position:absolute;top:-180px;left:44%;width:460px;height:460px;background:radial-gradient(circle,rgba(41,115,232,.17),transparent 68%);pointer-events:none}
.hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.18fr) minmax(330px,.72fr);gap:60px;align-items:center}
.hero-copy h1{font-size:clamp(48px,7.4vw,82px);line-height:.96;letter-spacing:-.062em;margin:16px 0 20px;max-width:760px}
.hero-lead{font-size:clamp(18px,2vw,21px);line-height:1.55;color:#c9d4e3;max-width:700px;margin:0 0 28px}
.hero-search{display:grid;grid-template-columns:42px 1fr auto;align-items:center;max-width:760px;padding:8px;background:#fff;border-radius:17px;box-shadow:0 22px 56px rgba(0,0,0,.22)}
.hero-search .search-symbol{color:#617086;text-align:center;font-size:22px}
.hero-search input{height:50px;border:0;outline:0;min-width:0;font-size:16px;color:var(--ink);background:transparent}
.hero-search input::placeholder{color:#8390a1}
.hero-search button{min-height:50px;border:0;border-radius:12px;padding:0 22px;background:var(--accent-blue);color:#fff;font-weight:850;cursor:pointer}
.hero-suggest{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:16px;color:#8fa0b6;font-size:12px}
.hero-suggest button{min-height:34px;border:1px solid rgba(255,255,255,.14);border-radius:999px;background:rgba(255,255,255,.05);color:#d7e0ec;padding:0 11px;cursor:pointer}
.hero-suggest button:hover{background:rgba(255,255,255,.1)}
.diagnostic-card{background:#fff;color:var(--ink);border-radius:var(--radius-xl);padding:28px;box-shadow:0 26px 64px rgba(0,0,0,.25)}
.diag-top{display:flex;align-items:center;gap:8px;color:var(--success);text-transform:uppercase;letter-spacing:.08em;font-weight:900;font-size:11px}
.status-dot{width:8px;height:8px;border-radius:50%;background:#19a274;box-shadow:0 0 0 5px rgba(25,162,116,.09);flex:0 0 auto}
.diagnostic-card h2{font-size:25px;line-height:1.2;letter-spacing:-.035em;margin:13px 0 17px}
.diagnostic-card>a{display:grid;grid-template-columns:36px 1fr;gap:12px;padding:15px 0;text-decoration:none;border-top:1px solid #edf0f3}
.diagnostic-card>a>span{width:32px;height:32px;border-radius:10px;background:var(--surface-cool);display:grid;place-items:center;color:var(--accent-blue-2);font-size:11px;font-weight:900}
.diagnostic-card b{display:block;font-size:14px}
.diagnostic-card small{display:block;color:var(--muted);margin-top:2px;line-height:1.45}

.trust-strip{background:#fff;border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-grid>div{padding:21px 18px;border-right:1px solid var(--line)}
.trust-grid>div:first-child{padding-left:0}
.trust-grid>div:last-child{border-right:0}
.trust-grid strong{display:block;color:var(--navy-950);font-size:14px;font-weight:880}
.trust-grid span{display:block;color:var(--muted);font-size:12px;margin-top:2px}

.topic-section,.featured-section,.editorial-proof,.collection-body,.service-center,.model-overview,.simple-content,.guide-body{padding:68px 0}
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.quick-topic{min-height:170px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;text-decoration:none;display:flex;flex-direction:column;box-shadow:var(--shadow-card);transition:.2s ease}
.quick-topic:hover{transform:translateY(-3px);border-color:#c9d3df;box-shadow:var(--shadow-soft)}
.quick-topic>.topic-icon{width:44px;height:44px;border-radius:13px;background:var(--accent-soft);color:var(--accent-blue-2);display:grid;place-items:center;font-size:11px;font-weight:950;margin-bottom:28px}
.quick-topic>span:nth-child(2){display:block}
.quick-topic b{display:block;font-size:17px;letter-spacing:-.025em}
.quick-topic small{display:block;color:var(--muted);line-height:1.45;margin-top:5px}
.quick-topic .arrow{margin-top:auto;padding-top:12px;color:var(--accent-blue)}

.vehicle-finder{padding:0 0 68px}
.finder-shell{background:var(--navy-900);color:#fff;border-radius:30px;padding:42px;display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;overflow:hidden;position:relative}
.finder-shell::after{content:"";position:absolute;right:-80px;bottom:-160px;width:360px;height:360px;border-radius:50%;border:80px solid rgba(255,255,255,.035)}
.finder-copy{position:relative;z-index:1}
.finder-copy h2{font-size:clamp(32px,4.5vw,48px);line-height:1.04;letter-spacing:-.05em;margin:10px 0 15px}
.finder-copy>p{color:#b9c6d7;max-width:520px;margin:0 0 20px}
.model-chips{display:flex;gap:7px;flex-wrap:wrap;margin:22px 0}
.model-chips a{display:inline-flex;align-items:center;min-height:34px;border-radius:999px;padding:0 10px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);color:#dce4ee;text-decoration:none;font-size:12px}
.brand-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.vehicle-brand{display:flex;align-items:center;gap:12px;min-height:72px;padding:12px 14px;background:#fff;color:var(--ink);border-radius:15px;text-decoration:none;border:1px solid rgba(255,255,255,.1)}
.vehicle-monogram{width:39px;height:39px;border-radius:11px;background:#edf3fb;color:var(--navy-900);display:grid;place-items:center;font-size:11px;font-weight:950;flex:0 0 auto}
.vehicle-brand b{display:block;font-size:14px}
.vehicle-brand small{display:block;color:var(--muted);font-size:11px;margin-top:2px}

.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
.feature-guide{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;text-decoration:none;box-shadow:var(--shadow-card);min-height:230px;transition:.2s ease}
.feature-guide:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
.feature-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.08em;font-weight:850}
.feature-meta span:first-child{color:var(--accent-blue)}
.feature-guide h3{font-size:19px;line-height:1.25;letter-spacing:-.03em;margin:18px 0 8px}
.feature-guide p{color:var(--muted);font-size:13px;line-height:1.5;margin:0 0 20px}
.read-more{margin-top:auto;color:var(--accent-blue-2);font-size:12px;font-weight:850}

.editorial-proof{padding-top:20px}
.proof-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;background:#eceff2;border-radius:30px;padding:46px}
.proof-grid h2{font-size:clamp(31px,4vw,46px);line-height:1.08;letter-spacing:-.05em;margin:9px 0 0}
.proof-list{display:grid;gap:0}
.proof-list>div{display:grid;grid-template-columns:38px 1fr;gap:12px;padding:15px 0;border-bottom:1px solid #d5dbe2}
.proof-list>div>span{font-size:10px;font-weight:900;color:var(--accent-blue)}
.proof-list b{display:block;font-size:15px}
.proof-list p{color:var(--muted);font-size:13px;margin:3px 0 0}
.proof-list .button-secondary{justify-self:start;margin-top:18px}

/* Breadcrumb */
.breadcrumb{display:flex;align-items:center;gap:8px;padding-top:19px;color:#7a8798;font-size:12px;white-space:nowrap;overflow:hidden}
.breadcrumb a{color:#58677a;text-decoration:none}
.breadcrumb span:last-child{overflow:hidden;text-overflow:ellipsis}
.crumb-sep{color:#a8b1be}

/* Guide */
.guide-masthead{padding:46px 0 28px}
.guide-head{max-width:920px}
.guide-head h1{font-size:clamp(40px,6vw,66px);line-height:1.02;letter-spacing:-.057em;margin:14px 0 16px;color:var(--navy-950)}
.dek{font-size:clamp(18px,2.1vw,21px);line-height:1.55;color:#536176;max-width:820px;margin:0 0 20px}
.meta{display:flex;gap:9px 18px;flex-wrap:wrap;color:#7a8798;font-size:12px}
.meta span{display:flex;align-items:center;gap:6px}
.meta span:not(:first-child)::before{content:"•";color:#b5beca;margin-right:6px}
.guide-body{padding-top:18px}
.guide-layout{display:grid;grid-template-columns:minmax(0,var(--reading)) 300px;gap:50px;align-items:start;justify-content:center}
.article{min-width:0}
.quick-solution{background:#fff;border:1px solid #d4deea;border-radius:var(--radius-lg);padding:24px 25px;box-shadow:var(--shadow-card);margin-bottom:18px}
.quick-label{display:flex;align-items:center;gap:9px;color:var(--success);text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:900;margin-bottom:8px}
.pulse{width:8px;height:8px;background:#18a175;border-radius:50%;box-shadow:0 0 0 5px rgba(24,161,117,.09)}
.quick-solution p{font-size:16px;line-height:1.65;margin:0;color:#29384b}
.guide-toc{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:13px 0 20px;border-bottom:1px solid var(--line);margin-bottom:24px}
.guide-toc>span{font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.07em;color:#788699;margin-right:5px}
.guide-toc a{display:inline-flex;align-items:center;min-height:34px;padding:0 10px;border-radius:999px;background:#fff;border:1px solid var(--line);text-decoration:none;font-size:12px;font-weight:750;color:#445268}
.callout{display:grid;grid-template-columns:38px 1fr;gap:13px;border-radius:15px;padding:17px 18px}
.safety{background:#fff8e8;border:1px solid #ead6aa;color:#68470c}
.callout-icon{width:34px;height:34px;border-radius:10px;background:#f2dcae;display:grid;place-items:center;font-weight:950}
.callout b{display:block;font-size:13px}
.callout p{margin:2px 0 0;font-size:13px}
.article-section{scroll-margin-top:100px;margin-top:42px}
.article-section h2,.source-panel h2,.guide-next h2{font-size:clamp(27px,3vw,34px);line-height:1.16;letter-spacing:-.04em;margin:7px 0 10px}
.section-intro{color:var(--muted);margin:0 0 24px}
.diagnostic-step{display:grid;grid-template-columns:45px 1fr;gap:16px;padding:23px 0;border-top:1px solid var(--line)}
.diagnostic-step:last-child{border-bottom:1px solid var(--line)}
.step-index{width:41px;height:41px;border-radius:13px;background:var(--navy-950);color:#fff;display:grid;place-items:center;font-size:11px;font-weight:900;letter-spacing:.03em}
.step-copy h3{font-size:18px;letter-spacing:-.025em;margin:0 0 6px}
.step-copy p{color:#4d5b6f;margin:0;font-size:14px;line-height:1.65}
.check-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:7px 22px}
.checklist{list-style:none;padding:0;margin:0}
.checklist li{position:relative;padding:16px 0 16px 30px;border-bottom:1px solid #edf0f3;color:#39485d;font-size:14px}
.checklist li:last-child{border-bottom:0}
.checklist li::before{content:"✓";position:absolute;left:0;top:16px;width:20px;height:20px;border-radius:6px;background:#e7f5ef;color:var(--success);display:grid;place-items:center;font-size:11px;font-weight:900}
.ad-slot{display:none}
.source-panel{scroll-margin-top:100px;margin-top:48px;padding:27px;background:#eef2f5;border-radius:var(--radius-lg);display:grid;grid-template-columns:.88fr 1.12fr;gap:26px}
.source-panel p{color:var(--muted);font-size:13px;margin:0}
.source-links{display:grid;gap:8px;align-content:start}
.source-links a{min-height:44px;display:flex;align-items:center;gap:10px;border:1px solid #d4dce5;background:#fff;border-radius:11px;padding:9px 12px;text-decoration:none;color:#334258;font-size:12px;font-weight:720}
.source-icon{width:25px;height:25px;border-radius:8px;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent-blue);font-size:11px;flex:0 0 auto}
.guide-next{margin-top:50px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.related-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:16px;text-decoration:none;min-height:170px;display:flex;flex-direction:column}
.related-card>span{font-size:10px;color:var(--accent-blue);text-transform:uppercase;font-weight:900;letter-spacing:.06em}
.related-card b{font-size:14px;line-height:1.35;margin:10px 0 7px}
.related-card small{color:var(--muted);font-size:11px;line-height:1.5}
.article-sidebar{position:sticky;top:94px;display:grid;gap:12px}
.sidebar-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px;box-shadow:0 2px 12px rgba(20,32,51,.025)}
.sidebar-status{display:grid;grid-template-columns:10px 1fr;column-gap:10px}
.sidebar-status p{grid-column:1/-1;color:var(--muted);font-size:12px;line-height:1.5;margin:8px 0 0}
.sidebar-card>a{display:block;padding:9px 0;border-bottom:1px solid #edf0f3;text-decoration:none;font-size:12px;font-weight:690;color:#435166}
.sidebar-card>a:last-child{border-bottom:0;padding-bottom:0}
.sidebar-label{margin-bottom:6px;color:#8490a1}
.sidebar-method{display:flex;justify-content:space-between;gap:12px;background:var(--navy-950);color:#fff;border-radius:15px;padding:15px 17px;text-decoration:none;font-size:12px;font-weight:790}

/* Collection, brand, model */
.collection-hero,.brand-hero,.model-hero,.simple-hero{padding:54px 0 34px}
.collection-grid,.brand-hero-grid,.model-hero-grid{display:grid;grid-template-columns:1fr auto;gap:50px;align-items:end}
.collection-grid h1,.brand-hero h1,.model-hero h1,.simple-hero h1{font-size:clamp(40px,6vw,64px);line-height:1.02;letter-spacing:-.055em;margin:13px 0 14px}
.collection-grid p,.brand-hero p,.model-hero p,.simple-hero p{max-width:760px;color:var(--muted);font-size:18px;margin:0}
.collection-stat{min-width:180px;padding:18px;border:1px solid var(--line);border-radius:17px;background:#fff}
.collection-stat strong{display:block;font-size:38px;line-height:1;letter-spacing:-.045em;color:var(--navy-950)}
.collection-stat span{display:block;font-weight:800;font-size:13px;margin-top:5px}
.collection-stat small{display:block;color:var(--muted);font-size:11px;margin-top:7px}
.brand-directory{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.vehicle-index-card{border:1px solid var(--line);box-shadow:var(--shadow-card)}
.brand-monogram{width:124px;height:124px;border-radius:26px;background:var(--navy-950);color:#fff;display:grid;place-items:center;font-size:26px;font-weight:950;letter-spacing:-.05em}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:44px}
.service-module{display:flex;align-items:center;gap:12px;min-height:92px;padding:16px;border:1px solid var(--line);border-radius:16px;background:#fff;text-decoration:none;box-shadow:var(--shadow-card)}
.module-icon{width:42px;height:42px;border-radius:12px;background:var(--accent-soft);color:var(--accent-blue-2);display:grid;place-items:center;font-size:10px;font-weight:950;flex:0 0 auto}
.service-module b{display:block;font-size:14px}
.service-module small{display:block;color:var(--muted);font-size:11px;margin-top:2px;line-height:1.35}
.compatibility-panel{display:grid;grid-template-columns:.65fr 1.35fr;gap:44px;background:var(--navy-900);color:#fff;border-radius:26px;padding:34px;margin:12px 0 50px}
.compatibility-panel h2{font-size:31px;line-height:1.1;letter-spacing:-.04em;margin:8px 0 0}
.compatibility-panel p{color:#c6d0dd;margin:0 0 12px}
.compatibility-note{background:#fff8df;color:#63480d!important;border:1px solid #ead59c;border-radius:13px;padding:14px 15px;font-size:12px}
.model-heading{margin-top:0}
.model-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.model-card{display:flex;flex-direction:column;min-height:195px;background:#fff;border:1px solid var(--line);border-radius:17px;padding:20px;text-decoration:none;box-shadow:var(--shadow-card)}
.model-type{color:var(--accent-blue);text-transform:uppercase;font-size:10px;letter-spacing:.08em;font-weight:900}
.model-card h3{font-size:20px;margin:11px 0 8px;letter-spacing:-.03em}
.model-card p{color:var(--muted);font-size:12px;margin:0 0 18px}
.compact-source{margin-top:44px}
.model-badge{min-width:220px;border-radius:22px;background:var(--navy-950);color:#fff;padding:22px}
.model-badge span{display:block;color:#9fb0c5;text-transform:uppercase;font-size:10px;letter-spacing:.09em;font-weight:900}
.model-badge b{display:block;font-size:28px;letter-spacing:-.04em;margin-top:5px}
.system-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.system-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:19px;box-shadow:var(--shadow-card)}
.system-card h2{font-size:17px;margin:20px 0 7px;letter-spacing:-.025em}
.system-card p{color:var(--muted);font-size:12px;line-height:1.55;margin:0}
.model-note{margin:14px 0 50px}

/* Static */
.simple-hero{padding-bottom:24px}
.simple-content{padding-top:20px}
.content-page{max-width:860px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(24px,4vw,42px);box-shadow:var(--shadow-card)}
.content-page h2{font-size:24px;letter-spacing:-.035em;margin:34px 0 8px}
.content-page h2:first-child{margin-top:0}
.content-page p{color:#4e5c70}
.notfound{text-align:center;padding:110px 0 120px}
.notfound h1{font-size:clamp(48px,7vw,80px);letter-spacing:-.06em;margin:10px 0}
.notfound p{color:var(--muted)}

/* Search overlay */
.search-panel{display:none;position:fixed;inset:0;background:rgba(5,12,23,.74);backdrop-filter:blur(8px);z-index:50;padding:8vh 20px}
.search-panel.open{display:block}
.search-inner{max-width:790px;margin:auto;background:#fff;border-radius:24px;padding:24px;box-shadow:0 34px 90px rgba(0,0,0,.32)}
.search-head{display:flex;align-items:start;justify-content:space-between;gap:20px}
.search-head h2{font-size:28px;letter-spacing:-.04em;margin:4px 0 18px}
.close{width:44px;height:44px;border:0;background:#eef1f4;border-radius:12px;font-size:24px;cursor:pointer}
.search-row{display:grid;grid-template-columns:42px 1fr;border:1px solid #cfd7e1;border-radius:14px;align-items:center;overflow:hidden}
.search-row .search-symbol{text-align:center;color:#67758a;font-size:21px}
.search-row input{height:54px;border:0;outline:0;font-size:16px;min-width:0;background:transparent}
.search-hint{color:var(--muted);font-size:11px;margin:8px 2px 0}
.results{margin-top:16px;max-height:55vh;overflow:auto;border-top:1px solid var(--line)}
.result{display:grid;grid-template-columns:1fr auto;gap:8px 16px;padding:14px 4px;border-bottom:1px solid var(--line);text-decoration:none}
.result b{font-size:14px;letter-spacing:-.01em}
.result small{grid-column:1;color:var(--muted);font-size:11px;line-height:1.45}
.result .result-type{grid-column:2;grid-row:1/3;align-self:center;display:inline-flex;align-items:center;min-height:26px;padding:0 8px;border-radius:999px;background:var(--accent-soft);color:var(--accent-blue-2);font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:.06em}

/* Footer */
.footer{background:var(--navy-950);color:#aab7c8;padding:54px 0 28px;margin-top:70px}
.footer-top{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.09)}
.brand-light .brand-mark{background:#fff;color:var(--navy-950)}
.brand-light .brand-word{color:#fff}
.footer-brand p{max-width:360px;color:#9cabbf;font-size:13px;margin-top:17px}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.footer-links b{display:block;color:#fff;font-size:12px;margin-bottom:10px}
.footer-links a{display:block;color:#9cabbf;text-decoration:none;font-size:12px;padding:4px 0}
.footer-links a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:11px;color:#7f8da1}
.legalnote{font-size:10px;color:#66768c;max-width:900px;margin:15px 0 0}

@media(max-width:1040px){
  .hero-layout{grid-template-columns:1fr .78fr;gap:34px}
  .topic-grid,.service-grid,.system-grid{grid-template-columns:repeat(2,1fr)}
  .featured-grid{grid-template-columns:repeat(2,1fr)}
  .finder-shell{grid-template-columns:1fr}
  .guide-layout{grid-template-columns:minmax(0,1fr) 270px;gap:28px}
  .model-grid{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:900px){
  :root{--header-h:66px}
  .navlinks{display:none}
  .nav-toggle{display:grid}
  .hero-layout{grid-template-columns:1fr}
  .diagnostic-card{max-width:680px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-grid>div:nth-child(2){border-right:0}
  .trust-grid>div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .section-heading{align-items:start;flex-direction:column;gap:8px}
  .proof-grid{grid-template-columns:1fr;gap:28px}
  .guide-layout{grid-template-columns:1fr;max-width:780px}
  .article-sidebar{position:static;grid-template-columns:repeat(2,1fr)}
  .sidebar-method{grid-column:1/-1}
  .collection-grid,.brand-hero-grid,.model-hero-grid{grid-template-columns:1fr}
  .collection-stat{justify-self:start}
  .brand-monogram,.model-badge{display:none}
  .compatibility-panel{grid-template-columns:1fr;gap:18px}
}

@media(max-width:760px){
  .wrap{width:min(var(--max),calc(100% - 28px))}
  .search-label{display:none}
  .search-open{width:44px;justify-content:center;padding:0}
  .premium-hero{padding:54px 0 48px}
  .hero-copy h1{font-size:clamp(46px,14vw,66px);max-width:620px}
  .hero-lead{font-size:17px}
  .hero-search{grid-template-columns:38px 1fr;padding:7px}
  .hero-search button{grid-column:1/-1;width:100%;margin-top:6px}
  .hero-suggest{display:none}
  .diagnostic-card{padding:22px;border-radius:21px}
  .topic-section,.featured-section,.editorial-proof,.collection-body,.service-center,.model-overview,.simple-content,.guide-body{padding:48px 0}
  .topic-grid,.featured-grid,.brand-grid,.brand-directory,.service-grid,.model-grid,.system-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr 1fr}
  .finder-shell{padding:28px 22px;border-radius:22px}
  .proof-grid{padding:28px 22px;border-radius:22px}
  .guide-masthead{padding:36px 0 14px}
  .guide-head h1{font-size:clamp(38px,11vw,52px)}
  .meta span:not(:first-child)::before{display:none}
  .quick-solution{padding:20px}
  .guide-toc{overflow-x:auto;flex-wrap:nowrap;padding-bottom:14px}
  .guide-toc>span{display:none}
  .diagnostic-step{grid-template-columns:40px 1fr;gap:12px;padding:20px 0}
  .source-panel{grid-template-columns:1fr;padding:22px}
  .related-grid{grid-template-columns:1fr}
  .article-sidebar{grid-template-columns:1fr}
  .sidebar-method{grid-column:auto}
  .collection-hero,.brand-hero,.model-hero,.simple-hero{padding:38px 0 20px}
  .collection-grid h1,.brand-hero h1,.model-hero h1,.simple-hero h1{font-size:clamp(38px,11vw,52px)}
  .footer-top{grid-template-columns:1fr;gap:34px}
  .footer-links{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;gap:4px}
  .search-panel{padding:4vh 12px}
  .search-inner{padding:18px;border-radius:19px}
  .result{grid-template-columns:1fr}
  .result .result-type{grid-column:1;grid-row:auto;justify-self:start}
}

@media(max-width:520px){
  .wrap{width:min(var(--max),calc(100% - 22px))}
  .brand-word{font-size:18px}
  .brand-mark{width:35px;height:35px}
  .trust-grid{grid-template-columns:1fr}
  .trust-grid>div{border-right:0!important;border-bottom:1px solid var(--line)}
  .trust-grid>div:last-child{border-bottom:0}
  .topic-section .section-heading h2,.featured-section .section-heading h2{font-size:31px}
  .diagnostic-card h2{font-size:22px}
  .footer-links{grid-template-columns:1fr}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}