:root{
    --ink:#101923;--ink-2:#263341;--muted:#637181;--line:#dce2e7;--soft:#f4f6f7;--paper:#fff;
    --orange:#f06a2a;--orange-d:#cf4f13;--green:#287a4e;--green-soft:#eaf6ef;--amber:#9b640d;--amber-soft:#fff6df;
    --navy-soft:#edf3f8;--shadow:0 18px 55px rgba(16,25,35,.09);--radius:22px;--shell:1180px;
  }
  *{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:#f7f8f9;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}
  a{color:inherit} button{font:inherit} .shell{width:min(var(--shell),calc(100% - 40px));margin:auto}
  .site-header{height:72px;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);display:flex;align-items:center;position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:800;letter-spacing:-.02em}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);display:grid;place-items:center}.brand-mark svg{width:23px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.nav{display:flex;gap:26px;font-size:14px;color:#405061}.nav a{text-decoration:none}.nav a:hover{color:var(--ink)}.header-btn{border:1px solid #cfd7dd;background:white;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer;color:var(--ink)}
  .result-top{background:var(--ink);color:#fff;padding:22px 0 46px}.crumbs{font-size:13px;color:#abb7c3;margin-bottom:20px}.crumbs a{color:#dbe3ea;text-decoration:none}.result-kicker{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#a8d7bd}.result-kicker i{width:8px;height:8px;background:#4bb679;border-radius:50%;box-shadow:0 0 0 5px rgba(75,182,121,.15)}
  .result-title-row{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-top:8px}.result-title-row h1{font-size:clamp(34px,5vw,58px);line-height:1.03;letter-spacing:-.045em;margin:0;max-width:800px}.result-title-row p{margin:0;color:#b9c4ce;max-width:330px;font-size:15px}.answerbar{margin-top:28px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}.answerbar .label{font-size:12px;color:#97a7b5;text-transform:uppercase;letter-spacing:.08em;margin-right:4px}.chip{background:#202c37;border:1px solid #34414d;color:#eff4f7;padding:8px 11px;border-radius:999px;font-size:13px}.edit-link{background:none;border:0;color:#ffae82;padding:8px 6px;font-weight:750;cursor:pointer}
  .main{padding:32px 0 70px}.best-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(320px,.75fr);gap:22px;align-items:start}
  .best-card{background:var(--paper);border:1px solid #dce2e7;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.best-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,#f5faf7,#fff)}.best-badge{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:900;letter-spacing:.09em;color:var(--green);text-transform:uppercase}.best-badge:before{content:"✓";width:23px;height:23px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;font-size:13px}.fit-count{text-align:right}.fit-count strong{display:block;font-size:18px;letter-spacing:-.02em}.fit-count small{color:var(--muted)}
  .product-main{display:grid;grid-template-columns:250px 1fr;gap:28px;padding:30px}.product-visual{border:1px solid #e3e7ea;background:linear-gradient(155deg,#fafbfb,#edf0f2);border-radius:18px;min-height:300px;display:grid;place-items:center;position:relative;overflow:hidden}.product-visual:after{content:"12V • 100–2000 CCA";position:absolute;left:15px;bottom:14px;font-size:11px;font-weight:850;letter-spacing:.05em;color:#566573;background:#fff;border:1px solid #d9dfe4;padding:7px 9px;border-radius:8px}.tester{width:126px;height:193px;border-radius:17px;background:#192530;box-shadow:0 22px 25px rgba(16,25,35,.22);transform:rotate(-4deg);padding:14px 13px;position:relative}.tester:before{content:"TOPDON";font-size:10px;font-weight:900;letter-spacing:.14em;color:#8ebcdc;position:absolute;top:13px;left:15px}.screen{height:68px;background:linear-gradient(#d9f0f2,#b7d6dc);border:6px solid #0d141a;border-radius:7px;margin-top:21px;display:grid;place-items:center;color:#243a43;font-weight:900;font-size:17px}.buttons{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;width:55px;margin:14px auto}.buttons i{height:13px;border-radius:4px;background:#476576}.clamp-line{position:absolute;width:110px;height:160px;border:3px solid #303b43;border-color:#303b43 transparent transparent transparent;border-radius:50%;left:90px;top:145px;transform:rotate(28deg)}
  .product-copy .eyebrow{font-size:13px;color:var(--muted);font-weight:750;margin-bottom:3px}.product-copy h2{margin:0;font-size:40px;letter-spacing:-.04em;line-height:1.05}.product-sub{color:#526170;margin:8px 0 0}.price-row{display:flex;gap:16px;align-items:end;margin-top:20px;padding-top:18px;border-top:1px solid #edf0f2}.price strong{font-size:30px;letter-spacing:-.035em}.price small{display:block;color:var(--muted);font-size:11px}.verified{font-size:12px;color:var(--green);font-weight:700;padding-bottom:6px}.verified span{display:inline-block;width:7px;height:7px;background:#43a66e;border-radius:50%;margin-right:6px}
  .why{margin-top:25px}.why h3{font-size:15px;margin:0 0 12px}.reason{display:grid;grid-template-columns:25px 1fr;gap:10px;padding:11px 0;border-top:1px solid #edf0f2}.reason:first-of-type{border-top:0}.check{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:var(--green-soft);color:var(--green);font-weight:900}.reason strong{display:block;font-size:14px}.reason small{display:block;color:var(--muted);margin-top:2px}
  .actions{display:flex;align-items:center;gap:11px;margin-top:22px;flex-wrap:wrap}.primary{appearance:none;border:0;background:var(--orange);color:#fff;text-decoration:none;border-radius:11px;padding:13px 18px;font-weight:850;box-shadow:0 8px 18px rgba(240,106,42,.2)}.primary:hover{background:var(--orange-d)}.secondary{border:1px solid #cfd7dd;background:#fff;color:var(--ink);text-decoration:none;border-radius:11px;padding:12px 16px;font-weight:750}.aff-note{width:100%;font-size:11px;color:#7d8994;margin:2px 0 0}
  .side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:18px}.side-card h3{font-size:17px;margin:0}.side-head{padding:20px 20px 14px}.side-head p{font-size:13px;color:var(--muted);margin:5px 0 0}.matrix{padding:0 20px 18px}.matrix-row{display:grid;grid-template-columns:1fr auto;gap:15px;padding:11px 0;border-top:1px solid #edf0f2;font-size:13px}.matrix-row b{font-weight:800}.matrix-row span:last-child{color:var(--green);font-weight:800}.matrix-row .neutral{color:#4b5a67}.dont{background:var(--amber-soft);border-color:#f1dcaa}.dont .side-head{padding-bottom:9px}.dont-tag{display:inline-block;color:var(--amber);font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}.dont p{font-size:13px;color:#6d5932;padding:0 20px 20px;margin:0}.dont strong{color:#473818}
  .section{margin-top:26px}.section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:13px}.section-title h2{margin:0;font-size:25px;letter-spacing:-.03em}.section-title p{margin:0;color:var(--muted);font-size:13px;max-width:480px}.alt-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.alt{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.alt-top{display:flex;justify-content:space-between;gap:12px}.alt-label{font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:#536473}.alt h3{margin:4px 0 3px;font-size:22px;letter-spacing:-.025em}.alt-price{text-align:right;white-space:nowrap}.alt-price strong{font-size:20px}.alt-price small{display:block;color:var(--muted);font-size:10px}.alt p{font-size:13px;color:var(--muted);margin:12px 0}.alt-rule{height:1px;background:#edf0f2;margin:14px 0}.alt .why-switch{font-size:13px}.alt .why-switch strong{display:block;margin-bottom:4px}.alt .link{display:inline-block;margin-top:14px;color:var(--ink);font-weight:850;font-size:13px;text-decoration:none;border-bottom:1px solid #aab5be}.alt .upgrade{color:var(--orange-d)}
  .comparison{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden}.mobile-comp{display:none}.comp-head,.comp-row{display:grid;grid-template-columns:1.4fr repeat(3,1fr);align-items:center}.comp-head{background:#f1f4f6;font-size:12px;font-weight:850;color:#52616f}.comp-head>div,.comp-row>div{padding:13px 17px}.comp-row{border-top:1px solid #e7ebee;font-size:13px}.comp-row .feature{font-weight:750}.yes{color:var(--green);font-weight:900}.no{color:#9aa4ad}.bestcol{background:#f6fbf8}.note-box{margin-top:14px;border-left:4px solid #8b9aaa;background:#eef2f4;padding:14px 16px;border-radius:0 12px 12px 0;font-size:13px;color:#4f5e6b}.note-box strong{color:var(--ink)}
  .evidence{display:grid;grid-template-columns:1fr 1fr;gap:18px}.evidence-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.evidence-card h3{font-size:18px;margin:0 0 7px}.evidence-card p{font-size:13px;color:var(--muted);margin:0}.source-list{margin-top:15px;padding-top:12px;border-top:1px solid #edf0f2}.source-list a{display:flex;justify-content:space-between;gap:12px;text-decoration:none;font-size:13px;padding:7px 0;color:#334452}.source-list a span:last-child{color:#8895a0}.method-list{display:grid;gap:10px;margin-top:14px}.method-list div{display:grid;grid-template-columns:24px 1fr;gap:9px;font-size:13px}.method-list i{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:var(--navy-soft);font-style:normal;font-size:11px;font-weight:900}.method-list small{display:block;color:var(--muted);margin-top:1px}
  .bottom-cta{margin-top:32px;background:var(--ink);border-radius:22px;color:white;padding:26px 28px;display:flex;justify-content:space-between;gap:20px;align-items:center}.bottom-cta h2{margin:0;font-size:23px}.bottom-cta p{margin:4px 0 0;color:#aebbc6;font-size:13px}.bottom-cta .primary{white-space:nowrap}.footer{padding:28px 0 45px;color:#788591;font-size:12px}.footer-line{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #dfe4e8;padding-top:20px}
  .mobile-buy{display:none}
  @media(max-width:900px){.nav{display:none}.best-grid{grid-template-columns:1fr}.result-title-row{align-items:start;flex-direction:column}.result-title-row p{max-width:600px}.product-main{grid-template-columns:190px 1fr}.alt-grid,.evidence{grid-template-columns:1fr}.comp-head,.comp-row{grid-template-columns:1.2fr repeat(3,.9fr)}.comp-head>div,.comp-row>div{padding:10px 8px;font-size:11px}}
  @media(max-width:620px){.shell{width:min(100% - 26px,var(--shell))}.site-header{height:62px}.brand-name{font-size:14px}.header-btn{padding:8px 10px;font-size:12px}.result-top{padding:18px 0 34px}.result-title-row h1{font-size:37px}.answerbar{gap:7px}.chip{font-size:11px;padding:6px 8px}.main{padding-top:18px}.best-head{padding:15px}.product-main{grid-template-columns:1fr;padding:18px}.product-visual{min-height:235px}.tester{transform:rotate(-3deg) scale(.86)}.product-copy h2{font-size:32px}.actions .primary,.actions .secondary{width:100%;text-align:center}.section-title{align-items:start;flex-direction:column}.comparison{display:none}.mobile-comp{display:grid;gap:10px}.mcomp{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}.mcomp.best{background:#f6fbf8;border-color:#cfe4d6}.mcomp-head{display:flex;justify-content:space-between;align-items:start;gap:10px}.mcomp-tag{font-size:9px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:var(--green)}.mcomp h3{margin:2px 0 0;font-size:17px}.mcomp-price{font-weight:900}.mcomp ul{list-style:none;margin:11px 0 0;padding:10px 0 0;border-top:1px solid #edf0f2;display:grid;gap:7px}.mcomp li{display:flex;justify-content:space-between;gap:10px;font-size:11px}.mcomp li span:last-child{font-weight:800}.mcomp-note{font-size:11px;color:var(--muted);margin:10px 0 0}.comp-head,.comp-row{min-width:650px}.bottom-cta{align-items:stretch;flex-direction:column;padding:22px}.bottom-cta .primary{text-align:center}.footer-line{flex-direction:column}.mobile-buy{display:flex;position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,.97);border-top:1px solid var(--line);padding:10px 13px;z-index:30;gap:9px;align-items:center;box-shadow:0 -10px 28px rgba(16,25,35,.08)}.mobile-buy div{flex:1}.mobile-buy strong{display:block;font-size:13px}.mobile-buy small{font-size:10px;color:var(--muted)}.mobile-buy a{background:var(--orange);color:#fff;text-decoration:none;font-weight:850;padding:11px 14px;border-radius:9px;font-size:12px}body{padding-bottom:68px}}