/* Qiantuo Fitness — site styles */
:root{
  --navy:#0c1a2b; --navy-2:#132740; --ink:#101828; --muted:#5b6675;
  --line:#e4e8ef; --accent:#e2571f; --accent-d:#c2450f; --soft:#f6f7f9;
  --radius:10px; --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:650;letter-spacing:-.01em}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:8px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.18s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-line{border-color:#cfd6e0;color:var(--ink);background:#fff}
.btn-line:hover{border-color:#9aa6b6}

/* header */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em}
.logo .mark{width:30px;height:30px;border-radius:7px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700}
.logo small{display:block;font-size:10px;letter-spacing:.18em;color:var(--muted);font-weight:600;margin-top:-2px}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0;font-size:14.5px;font-weight:500}
.nav ul a{color:#2b3646;transition:.15s}
.nav ul a:hover,.nav ul a.on{color:var(--accent)}
.nav .cta{display:flex;align-items:center;gap:12px}
.nav .btn{padding:10px 18px;font-size:14px}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;cursor:pointer}

/* hero */
.hero{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;inset:0;background:
  radial-gradient(900px 420px at 82% 18%,rgba(226,87,31,.20),transparent 62%),
  radial-gradient(700px 400px at 10% 90%,rgba(35,88,150,.28),transparent 65%)}
.hero .inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:76px 0 84px}
.hero h1{font-size:clamp(32px,4.2vw,52px);letter-spacing:-.025em}
.hero h1 em{font-style:normal;color:#ff9a63}
.hero .sub{margin-top:18px;font-size:17px;color:#c2ccdb;max-width:520px}
.hero .actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero .trust{display:flex;gap:26px;margin-top:36px;flex-wrap:wrap;font-size:13px;color:#9fb0c6}
.hero .trust b{display:block;color:#fff;font-size:22px;font-weight:650;letter-spacing:-.02em}
.hero-card{background:#fff;border-radius:16px;padding:18px;box-shadow:0 24px 60px rgba(0,0,0,.28)}
.hero-card img{border-radius:10px;background:var(--soft)}
.hero-card .meta{display:flex;justify-content:space-between;align-items:center;padding:14px 6px 4px;color:var(--ink)}
.hero-card .meta span{font-size:13px;color:var(--muted)}
.hero-card .meta b{font-size:14px}

/* logo strip */
.strip{border-bottom:1px solid var(--line);background:#fff}
.strip .wrap{display:flex;gap:34px;align-items:center;justify-content:space-between;padding:18px 24px;flex-wrap:wrap}
.strip span{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#8a94a3;font-weight:600}

/* sections */
section{padding:78px 0}
.sec-head{max-width:660px}
.sec-head h2{font-size:clamp(26px,3vw,36px);margin-top:10px}
.sec-head p{margin-top:12px;color:var(--muted);font-size:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:38px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:38px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:38px}

/* category card */
.cat{position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.2s}
.cat:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(16,24,40,.08);border-color:#d3dae5}
.cat .ph{background:var(--soft);aspect-ratio:4/3;display:grid;place-items:center;padding:14px}
.cat .ph img{mix-blend-mode:multiply;max-height:100%;width:auto}
.cat .tx{padding:14px 16px;border-top:1px solid var(--line)}
.cat .tx b{display:block;font-size:14.5px}
.cat .tx span{font-size:12.5px;color:var(--muted)}

/* product card */
.pcard{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.pcard:hover{border-color:#cfd6e0;box-shadow:0 12px 26px rgba(16,24,40,.07)}
.pcard .ph{background:var(--soft);aspect-ratio:1/1;display:grid;place-items:center;padding:16px}
.pcard .ph img{mix-blend-mode:multiply;max-height:100%;width:auto}
.pcard .bd{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1}
.pcard .code{font-size:11.5px;letter-spacing:.08em;color:var(--accent);font-weight:600}
.pcard h4{font-size:15px}
.pcard .cn{font-size:12.5px;color:var(--muted)}
.pcard .row{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding-top:10px}
.pcard .row a{font-size:13px;font-weight:600;color:var(--accent)}
.pcard .row a:hover{text-decoration:underline}
.pcard .moq{font-size:12px;color:#8a94a3}

/* feature blocks */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.feat ul{margin:22px 0 0;padding:0;list-style:none;display:grid;gap:14px}
.feat li{display:flex;gap:12px;font-size:15px;color:#33404f}
.feat li b{color:var(--ink)}
.tick{flex:none;width:22px;height:22px;border-radius:50%;background:#eaf3ee;color:#1d7a4d;display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:2px}
.panel{background:var(--soft);border-radius:16px;padding:16px}
.panel img{border-radius:10px;mix-blend-mode:multiply}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;margin-top:40px;counter-reset:s}
.step{border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px;background:#fff}
.step:before{counter-increment:s;content:"0" counter(s);font-size:12px;letter-spacing:.1em;color:var(--accent);font-weight:700}
.step h4{font-size:14.5px;margin:8px 0 6px}
.step p{font-size:13px;color:var(--muted)}

/* certs */
.certs{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.cert{border:1px solid var(--line);border-radius:8px;padding:12px 16px;font-size:13px;font-weight:600;background:#fff}
.cert small{display:block;font-size:11.5px;color:var(--muted);font-weight:400;margin-top:2px}

/* price table */
.ptable{width:100%;border-collapse:collapse;margin-top:34px;font-size:14px}
.ptable th,.ptable td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
.ptable th{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:#7b8697;font-weight:600;background:var(--soft)}
.ptable td b{font-weight:650}
.ptable tr:hover td{background:#fbfcfd}

/* cta band */
.band{background:var(--navy);color:#fff;border-radius:16px;padding:46px;display:flex;justify-content:space-between;gap:32px;align-items:center;flex-wrap:wrap}
.band h2{font-size:clamp(24px,2.6vw,32px)}
.band p{color:#b9c5d5;margin-top:10px;max-width:520px}

/* footer */
footer.site{background:#0a1522;color:#93a2b5;padding:56px 0 28px;font-size:14px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
footer h5{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 14px;font-weight:600}
footer a:hover{color:#fff}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
footer .bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px}

/* page header */
.phead{background:var(--navy);color:#fff;padding:58px 0 54px}
.phead h1{font-size:clamp(28px,3.4vw,42px)}
.phead p{margin-top:12px;color:#b9c5d5;max-width:640px}

/* filters */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:30px 0 6px}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 15px;font-size:13.5px;cursor:pointer;transition:.15s;color:#33404f}
.chip:hover{border-color:#b9c3d1}
.chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.search{margin-left:auto;display:flex;align-items:center;gap:8px}
.search input{border:1px solid var(--line);border-radius:8px;padding:9px 13px;font-size:14px;width:230px;outline:none}
.search input:focus{border-color:#9aa6b6}

/* forms */
.form{display:grid;gap:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;border:1px solid #d5dce6;border-radius:8px;padding:12px 14px;font-size:14.5px;font-family:inherit;outline:none;background:#fff}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(226,87,31,.12)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.note{font-size:12.5px;color:#8a94a3}

/* contact cards */
.cc{border:1px solid var(--line);border-radius:12px;padding:22px;background:#fff}
.cc h4{font-size:15px;margin-bottom:6px}
.cc a{color:var(--accent);font-weight:600;word-break:break-all}
.cc p{font-size:13.5px;color:var(--muted)}

/* faq */
.faq{border-top:1px solid var(--line);margin-top:26px}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{font-weight:600;font-size:15px;cursor:pointer;list-style:none;display:flex;justify-content:space-between}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--accent);font-weight:600}
.faq details[open] summary:after{content:"–"}
.faq p{margin-top:10px;color:var(--muted);font-size:14px}

/* ===== hero SKU feature rows ===== */
.hsku{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:56px 0;border-top:1px solid var(--line)}
.hsku.no-line{border-top:0;padding-top:8px}
.hsku .ph{background:var(--soft);border-radius:16px;padding:30px;display:grid;place-items:center;position:relative}
.hsku .ph img{max-height:400px;width:auto;mix-blend-mode:multiply}
.hsku .ph .badge{position:absolute;top:14px;left:14px;background:#0c1a2b;color:#fff;border-radius:6px;padding:5px 11px;font-size:11.5px;font-weight:600;letter-spacing:.06em}
.hsku .code{font-size:12px;letter-spacing:.1em;color:var(--accent);font-weight:700;text-transform:uppercase}
.hsku h3{font-size:clamp(22px,2.5vw,31px);margin-top:10px;letter-spacing:-.02em}
.hsku .blurb{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:480px}
.hsku ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.hsku li{display:flex;gap:11px;font-size:14.5px;color:#33404f;line-height:1.45}
.hsku li:before{content:"✓";flex:none;width:20px;height:20px;border-radius:50%;background:#eaf3ee;color:#1d7a4d;display:grid;place-items:center;font-size:11px;font-weight:700;margin-top:2px}
.hsku .buy{margin-top:24px;display:flex;gap:14px;align-items:stretch;flex-wrap:wrap}
.price-chip{background:var(--navy);color:#fff;border-radius:8px;padding:10px 18px;font-size:15px;font-weight:700;display:flex;flex-direction:column;justify-content:center}
.price-chip small{font-size:11px;color:#9fb0c6;font-weight:500;margin-top:1px}
.hsku .buy .btn{align-self:center}
.hsku.rev .ph{order:2}
.lang{font-size:12.5px;border:1px solid #cfd6e0;border-radius:999px;padding:7px 13px;font-weight:600;color:#2b3646;transition:.15s}
.lang:hover{border-color:var(--accent);color:var(--accent)}

@media (max-width:960px){
  .hsku{grid-template-columns:1fr;gap:26px;padding:40px 0}
  .hsku.rev .ph{order:0}
  .hsku .ph img{max-height:300px}
}


@media (max-width:960px){
  .hero .inner{grid-template-columns:1fr;gap:36px;padding:56px 0 62px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feat{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr 1fr}
  .nav ul{display:none}
  .burger{display:block}
  .nav.open ul{display:flex;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:18px 24px;border-bottom:1px solid var(--line);gap:14px}
}
@media (max-width:620px){
  .grid-4,.grid-3{grid-template-columns:1fr}
  .two{grid-template-columns:1fr}
  .band{padding:30px}
  .search{margin-left:0;width:100%}
  .search input{width:100%}
  footer .cols{grid-template-columns:1fr}
}

/* whatsapp float */
.wa{position:fixed;right:20px;bottom:20px;z-index:60;background:#25d366;color:#fff;width:52px;height:52px;border-radius:50%;display:grid;place-items:center;box-shadow:0 8px 22px rgba(0,0,0,.2)}
.wa svg{width:26px;height:26px;fill:#fff}