:root{
  --ink:#0b1533; --ink2:#3b4767; --muted:#6b7591; --line:#e3e8f2; --bg:#f4f6fb; --card:#fff;
  --brand:#2457ff; --brand2:#5b3dff; --brandSoft:#eaf0ff; --ok:#0f9f6e; --okSoft:#e3f7ef; --warn:#b76e00; --warnSoft:#fff4e0;
  --r:18px; --shadow:0 1px 2px rgba(11,21,51,.06),0 8px 28px rgba(11,21,51,.07);
  font-family:ui-sans-serif,-apple-system,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:var(--brand)} button{font:inherit;cursor:pointer}
.top{position:sticky;top:0;z-index:5;background:rgba(244,246,251,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .in{max-width:1120px;margin:0 auto;padding:14px 22px;display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo i{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;color:#fff;font-style:normal;font-size:16px}
.steps{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap}
.steps span{font-size:12.5px;padding:6px 11px;border-radius:99px;color:var(--muted);background:transparent;font-weight:600}
.steps span.on{background:var(--ink);color:#fff} .steps span.done{color:var(--ok)}
.demo-pill{font-size:12px;font-weight:700;background:var(--warnSoft);color:var(--warn);padding:5px 10px;border-radius:99px}
main{max-width:1120px;margin:0 auto;padding:34px 22px 80px}
h1{font-size:clamp(32px,4.6vw,54px);line-height:1.02;letter-spacing:-.035em;margin:0 0 16px}
h2{font-size:30px;letter-spacing:-.025em;margin:0 0 6px} h3{margin:0 0 10px;font-size:17px;letter-spacing:-.01em}
.sub{color:var(--ink2);font-size:17px;line-height:1.55;margin:0 0 24px;max-width:640px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:24px}
.grid{display:grid;gap:18px} .g2{grid-template-columns:1fr 1fr} .g3{grid-template-columns:repeat(3,1fr)} .g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:860px){.g2,.g3,.g4{grid-template-columns:1fr}.steps{display:none}}
.btn{border:0;border-radius:12px;padding:13px 20px;font-weight:700;font-size:15px;background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(36,87,255,.28);transition:transform .1s}
.btn:hover{transform:translateY(-1px)} .btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:none}
.btn.dark{background:var(--ink);box-shadow:none} .btn.sm{padding:8px 13px;font-size:13.5px;border-radius:10px}
.btn:disabled{opacity:.5;cursor:default;transform:none}
label{display:block;font-size:13px;font-weight:700;color:var(--ink2);margin:14px 0 6px}
input,textarea,select{width:100%;font:inherit;font-size:15px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);outline:none}
input:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--brandSoft)}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap} .sp{flex:1}
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
@media (max-width:860px){.hero{grid-template-columns:1fr}}
.kicker{display:inline-flex;gap:8px;align-items:center;font-size:13px;font-weight:700;color:var(--brand);background:var(--brandSoft);padding:6px 12px;border-radius:99px;margin-bottom:18px}
.bullets{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.bullets li{display:flex;gap:12px;align-items:flex-start;color:var(--ink2);font-size:15.5px}
.bullets b{color:var(--ink)} .tick{flex:none;width:22px;height:22px;border-radius:7px;background:var(--okSoft);color:var(--ok);display:grid;place-items:center;font-size:13px;font-weight:900}
.urlbox{display:flex;gap:10px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:8px;box-shadow:var(--shadow);max-width:680px}
.urlbox input{border:0;box-shadow:none!important;font-size:18px}
.err{color:#c4302b;font-size:14px;margin-top:10px;font-weight:600}
.checklist{display:grid;gap:14px;max-width:560px;margin:30px auto}
.ck{display:flex;gap:14px;align-items:center;font-size:16px;color:var(--muted);font-weight:600}
.ck .dot{width:28px;height:28px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;flex:none;font-size:14px}
.ck.run{color:var(--ink)} .ck.run .dot{border-color:var(--brand);border-top-color:transparent;animation:spin .8s linear infinite}
.ck.ok{color:var(--ink)} .ck.ok .dot{background:var(--ok);border-color:var(--ok);color:#fff}
@keyframes spin{to{transform:rotate(360deg)}}
.chips{display:flex;flex-wrap:wrap;gap:8px} .chip{background:var(--bg);border:1px solid var(--line);padding:7px 12px;border-radius:99px;font-size:13.5px;font-weight:600;color:var(--ink2)}
.stat{font-size:28px;font-weight:800;letter-spacing:-.02em} .stat small{display:block;font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:0;margin-top:2px}
.tabs{display:flex;gap:4px;background:#e9edf6;padding:4px;border-radius:12px;width:max-content;max-width:100%;overflow:auto;margin-bottom:18px}
.tabs button{border:0;background:transparent;padding:9px 14px;border-radius:9px;font-weight:700;font-size:14px;color:var(--ink2);white-space:nowrap}
.tabs button.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
/* Google ad mock */
.serp{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;font-family:arial,sans-serif;max-width:640px}
.serp .spon{font-weight:700;font-size:14px;color:#202124;margin-bottom:10px}
.serp .who{display:flex;gap:10px;align-items:center}
.serp .fav{width:28px;height:28px;border-radius:50%;background:var(--brandSoft);display:grid;place-items:center;font-weight:800;color:var(--brand);font-size:13px}
.serp .nm{font-size:14px;color:#202124} .serp .du{font-size:12px;color:#4d5156}
.serp .hl{font-size:20px;color:#1a0dab;margin:8px 0 4px;line-height:1.3}
.serp .ds{font-size:14px;color:#4d5156;line-height:1.58}
.serp .sl{display:grid;grid-template-columns:1fr 1fr;gap:10px 26px;margin-top:12px;padding-top:12px;border-top:1px solid #eee}
.serp .sl a{color:#1a0dab;font-size:15px;text-decoration:none} .serp .sl div{font-size:13px;color:#4d5156;line-height:1.4}
.serp .co{font-size:13px;color:#4d5156;margin-top:6px}
.tbl{width:100%;border-collapse:collapse;font-size:14px} .tbl th{text-align:left;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;padding:10px 8px;border-bottom:1px solid var(--line)}
.tbl td{padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.edit{display:flex;gap:8px;align-items:center;margin-bottom:6px} .edit input{padding:8px 10px;font-size:14px}
.cnt{font-size:11.5px;color:var(--muted);width:44px;text-align:right;flex:none;font-variant-numeric:tabular-nums} .cnt.bad{color:#c4302b;font-weight:800}
.imgs{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.img{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.img .pair{display:grid;grid-template-columns:1.91fr 1fr;gap:4px;padding:4px;background:#f1f3f8}
.img img{width:100%;display:block;border-radius:8px}
.img .meta{padding:10px 12px;display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--muted);font-weight:600}
.tag{font-size:11px;font-weight:800;padding:3px 8px;border-radius:99px;background:var(--brandSoft);color:var(--brand)}
.tag.site{background:var(--okSoft);color:var(--ok)}
input[type=range]{padding:0;border:0;box-shadow:none!important;accent-color:var(--brand);height:28px}
.big{font-size:56px;font-weight:850;letter-spacing:-.04em;line-height:1}
.note{background:var(--brandSoft);border-radius:14px;padding:14px 16px;font-size:14px;color:var(--ink2);line-height:1.5}
.note.warn{background:var(--warnSoft)}
.step-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)} .step-item:last-child{border:0}
.num{flex:none;width:34px;height:34px;border-radius:11px;background:var(--bg);border:1px solid var(--line);display:grid;place-items:center;font-weight:800}
.num.ok{background:var(--ok);border-color:var(--ok);color:#fff}
pre.code{background:#0b1533;color:#cfe0ff;border-radius:12px;padding:14px;font-size:12.5px;overflow:auto;margin:10px 0 0}
.sugg{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)} .sugg:last-child{border:0}
.sugg .ic{flex:none;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;font-size:17px;background:var(--brandSoft)}
.bar{display:flex;align-items:flex-end;gap:10px;height:150px;padding-top:10px}
.bar div{flex:1;background:linear-gradient(180deg,var(--brand),var(--brand2));border-radius:8px 8px 3px 3px;position:relative}
.bar div span{position:absolute;top:-20px;left:0;right:0;text-align:center;font-size:12px;font-weight:700;color:var(--ink2)}
.barlbl{display:flex;gap:10px} .barlbl span{flex:1;text-align:center;font-size:12px;color:var(--muted);font-weight:600}
.footer-actions{display:flex;justify-content:space-between;align-items:center;margin-top:26px;gap:12px;flex-wrap:wrap}
.fade{animation:fade .35s ease} @keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.otp{font-size:28px;letter-spacing:.5em;text-align:center;font-weight:800;font-variant-numeric:tabular-nums;padding:14px}
.qr{width:190px;height:190px;border:1px solid var(--line);border-radius:14px;padding:8px;background:#fff;display:block;margin:6px auto 10px}
.secret{font-family:ui-monospace,Menlo,monospace;font-size:12.5px;background:var(--bg);border:1px dashed var(--line);border-radius:10px;padding:8px 10px;word-break:break-all;text-align:center}
.lock{width:46px;height:46px;border-radius:14px;background:var(--brandSoft);display:grid;place-items:center;font-size:22px;margin-bottom:12px}
.muted{color:var(--muted)} .small{font-size:13px}