*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#fff;
  --ink:#1a1a1a;
  --muted:#6a6a6a;
  --line:#e5e5e5;
  --soft:#f6f6f6;
  --blue:#0071e3;
  --tag:#168edf;
  --danger:#c41e3a;
  --max:1280px;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.5;
  -webkit-font-smoothing:antialiased;
  padding-bottom:72px;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.page-width{max-width:var(--max);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
button{font-family:inherit}

/* announcement — iStudio blue bar */
.announce{
  background:#168edf;color:#fff;text-align:center;
  padding:10px 44px;font-size:13px;font-weight:500;position:relative;
}
.announce a{color:#fff;font-weight:700;margin-left:4px;text-decoration:underline}
.announce-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border:0;background:transparent;color:#fff;
  font-size:18px;line-height:1;cursor:pointer;opacity:.9;
}
.announce-nav:hover{opacity:1}
.announce-nav.prev{left:8px}
.announce-nav.next{right:8px}

/* benefits strip */
.benefits-strip{
  display:grid;grid-template-columns:repeat(5,1fr);gap:0;
  border-bottom:1px solid var(--line);background:#fafafa;
}
.benefits-strip article{
  text-align:center;padding:14px 10px;font-size:12px;color:var(--muted);
  border-right:1px solid var(--line);
}
.benefits-strip article:last-child{border-right:0}
.benefits-strip strong{display:block;color:var(--ink);font-size:12px;font-weight:600;margin-bottom:2px}

/* header — Apple SG / iStudio */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#fff;border-bottom:1px solid var(--line);
}
.header-top{
  display:flex;align-items:center;gap:14px;
  min-height:64px;padding:10px 0;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.brand img{height:32px;width:auto}
.partner-badge{
  display:inline-flex;align-items:center;gap:5px;
  border:1px solid #d2d2d7;border-radius:980px;padding:4px 10px 4px 8px;
  font-size:10px;font-weight:600;color:#1d1d1f;letter-spacing:.01em;
  white-space:nowrap;text-decoration:none;line-height:1;
}
.partner-badge svg{width:12px;height:12px;flex-shrink:0}
.partner-badge:hover{text-decoration:none;border-color:#aeaeb2}

.search-wrap{flex:1;max-width:520px;margin:0 auto;position:relative}
.search-wrap input{
  width:100%;height:40px;border:0;border-radius:980px;background:#f5f5f7;
  padding:0 16px 0 40px;font-size:14px;color:var(--ink);outline:none;
}
.search-wrap input::placeholder{color:#86868b}
.search-wrap .search-ico{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:#86868b;pointer-events:none;
}

.header-utils{
  display:flex;align-items:center;gap:16px;flex-shrink:0;margin-left:auto;
}
.store-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--ink);text-decoration:none;white-space:nowrap;
}
.store-link:hover{color:var(--blue);text-decoration:none}
.store-link svg{width:18px;height:18px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;color:var(--ink);text-decoration:none;
}
.icon-btn:hover{color:var(--blue)}
.icon-btn svg{width:22px;height:22px}

.header-nav{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:42px;border-top:1px solid var(--line);padding:6px 0;
}
.nav-links{
  display:flex;flex-wrap:wrap;gap:4px 18px;list-style:none;margin:0;padding:0;
}
.nav-links a{
  font-size:12px;color:#1d1d1f;text-decoration:none;font-weight:500;letter-spacing:.01em;
}
.nav-links a:hover,.nav-links a.is-active{color:var(--blue)}
.nav-auth{
  display:flex;align-items:center;gap:12px;flex-shrink:0;
  padding-left:14px;border-left:1px solid var(--line);font-size:12px;font-weight:600;
}
.nav-auth a{color:#1d1d1f;text-decoration:none}
.nav-auth a:hover{color:var(--blue)}

/* product rail */
.rail-wrap{padding:18px 0 8px;border-bottom:1px solid var(--line)}
.rail-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.rail-head h2{margin:0;font-size:14px;font-weight:600}
.rail-head a{font-size:12px}
.rail{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(148px,1fr);
  gap:12px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin;
}
.rail-card{
  border:1px solid var(--line);border-radius:10px;padding:10px;
  text-decoration:none;color:inherit;background:#fff;min-width:148px;
}
.rail-card:hover{box-shadow:0 6px 18px rgba(0,0,0,.06);text-decoration:none}
.rail-card .tag{display:inline-block;font-size:10px;font-weight:700;color:var(--tag);margin-bottom:6px}
.rail-card .thumb{
  aspect-ratio:1;border-radius:8px;background:var(--soft);
  overflow:hidden;margin-bottom:8px;
}
.rail-card .thumb img{width:100%;height:100%;object-fit:cover}
.rail-card h3{margin:0 0 2px;font-size:12px;font-weight:600}
.rail-card p{margin:0;font-size:11px;color:var(--muted)}

/* PDP 2-col */
.pdp{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;
  padding:28px 0 36px;align-items:start;
}
.gallery{position:sticky;top:72px}
.stage{
  position:relative;background:var(--soft);border-radius:4px;
  aspect-ratio:1;overflow:hidden;display:grid;place-items:center;
}
.stage img{width:100%;height:100%;object-fit:cover}
.stage .new-badge{
  position:absolute;top:12px;left:12px;background:#fff;color:var(--muted);
  font-size:11px;font-weight:700;padding:4px 10px;border-radius:4px;
}
.thumbs{
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px;
}
.thumbs button{
  border:1px solid var(--line);border-radius:6px;padding:0;background:#fff;
  aspect-ratio:1;cursor:pointer;overflow:hidden;
}
.thumbs button.is-active{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}
.thumbs img{width:100%;height:100%;object-fit:cover}

.info .new{font-size:12px;font-weight:700;color:var(--tag);margin:0 0 8px}
.info h1{
  margin:0 0 8px;font-size:clamp(22px,2.8vw,30px);line-height:1.15;
  letter-spacing:-.02em;font-weight:700;
}
.sku{font-size:12px;color:var(--muted);margin:0 0 16px}
.price{font-size:26px;font-weight:700;margin:0 0 2px}
.price-note{font-size:12px;color:var(--muted);margin:0 0 10px}
.finance{font-size:13px;color:var(--muted);margin:0 0 20px}
.finance a{font-weight:600}

.field{margin:0 0 18px}
.field > span{
  display:block;font-size:12px;font-weight:600;margin-bottom:8px;color:var(--muted);
}
.field > span b{color:var(--ink);font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  min-height:38px;padding:0 14px;border:1px solid var(--line);border-radius:8px;
  background:#fff;font-size:13px;cursor:pointer;color:var(--ink);
}
.chip.is-active{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue);background:#f3f9ff}

.protect{
  border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:0 0 16px;background:#fff;
}
.protect h3{margin:0 0 6px;font-size:15px}
.protect p{margin:0 0 10px;font-size:13px;color:var(--muted)}
.protect ul{margin:0;padding:0;list-style:none}
.protect li{
  position:relative;padding:5px 0 5px 20px;font-size:13px;
}
.protect li::before{
  content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:50%;
  background:#34c759;box-shadow:inset 0 0 0 2px #fff,0 0 0 1px #34c759;
}
.protect .more{font-size:13px;font-weight:600}

.ship-row{
  display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0;
  font-size:13px;color:var(--muted);
}
.ship-row b{display:block;color:var(--ink);margin-bottom:2px}
.stock{font-size:13px;color:var(--danger);font-weight:700;margin:0 0 12px}

.btn-buy{
  display:flex;align-items:center;justify-content:center;width:100%;
  min-height:48px;border:0;border-radius:8px;background:#111;color:#fff;
  font-size:15px;font-weight:700;text-decoration:none;cursor:pointer;
}
.btn-buy:hover{background:#000;color:#fff;text-decoration:none}

.quick-links{
  display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:18px;
}
.quick-links a{
  display:grid;place-items:center;gap:4px;padding:12px 6px;border-radius:8px;
  background:#111;color:#fff;font-size:10px;font-weight:700;text-decoration:none;text-align:center;
}
.quick-links a:hover{background:#222;text-decoration:none}
.quick-links span{font-size:16px;line-height:1}

/* article + faq */
.seo-block{border-top:1px solid var(--line);padding:36px 0 20px}
.seo-block h2{margin:0 0 12px;font-size:22px}
.seo-block p{font-size:15px;color:var(--muted);max-width:78ch;margin:0 0 14px}
.faq{margin-top:28px}
.faq h2{margin:0 0 14px;font-size:20px}
.faq details{
  border:1px solid var(--line);border-radius:8px;margin:0 0 8px;background:var(--soft);
}
.faq summary{
  cursor:pointer;padding:12px 14px;font-size:14px;font-weight:650;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq .ans{padding:0 14px 14px;font-size:14px;color:var(--muted)}

.bonus{padding:10px 0 40px}
.bonus h2{margin:0 0 14px;font-size:20px}
.bonus-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.bonus-card{
  border:1px solid var(--line);border-radius:8px;padding:14px;background:#fff;
  font-size:13px;font-weight:600;min-height:86px;display:flex;align-items:center;
}

/* footer — iStudio */
.site-footer{
  background:#fff;border-top:1px solid var(--line);padding:40px 0 100px;font-size:13px;color:#6e6e73;
}
.footer-grid{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:28px 20px;margin-bottom:36px;
}
.site-footer h4{
  margin:0 0 14px;color:#1d1d1f;font-size:14px;font-weight:700;text-transform:none;letter-spacing:0;
}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:0 0 10px}
.site-footer a{color:#6e6e73;text-decoration:none;font-size:13px}
.site-footer a:hover{color:var(--blue);text-decoration:underline}
.partner-col{display:flex;flex-direction:column;gap:12px}
.footer-badge{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid #d2d2d7;border-radius:10px;padding:10px 14px;
  color:#1d1d1f;font-size:12px;font-weight:600;text-decoration:none;width:fit-content;
  background:#fff;
}
.footer-badge:hover{border-color:#aeaeb2;text-decoration:none;color:#1d1d1f}
.footer-badge svg{width:16px;height:16px;flex-shrink:0}
.footer-badge.asp{border-radius:8px;font-size:11px;gap:6px}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:24px;
  padding-top:8px;
}
.footer-subscribe h4{margin-bottom:12px}
.subscribe-form{
  display:flex;align-items:center;border:1px solid #d2d2d7;border-radius:4px;
  max-width:320px;background:#fff;overflow:hidden;
}
.subscribe-form input{
  flex:1;border:0;outline:none;padding:12px 14px;font-size:14px;min-width:0;
}
.subscribe-form button{
  border:0;background:transparent;padding:10px 14px;cursor:pointer;color:#1d1d1f;font-size:18px;line-height:1;
}
.subscribe-form button:hover{color:var(--blue)}

.footer-social-pay{display:flex;flex-direction:column;align-items:flex-end;gap:14px}
.footer-social{display:flex;gap:14px;align-items:center}
.footer-social a{color:#1d1d1f;display:inline-flex}
.footer-social a:hover{color:var(--blue)}
.footer-social svg{width:20px;height:20px}
.pay-logos{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;align-items:center}
.pay-logos img,.pay-logos .pay-pill{
  height:28px;width:auto;display:block;border-radius:4px;
}
.pay-pill{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:48px;padding:0 8px;height:28px;border:1px solid var(--line);
  background:#fff;font-size:10px;font-weight:800;color:#1d1d1f;letter-spacing:.02em;
}

.footer-copy{
  border-top:1px solid var(--line);margin-top:28px;padding-top:16px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:12px;
}

/* floating bar — blue like iStudio mobile CTA */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:#168edf;
  box-shadow:0 -2px 16px rgba(22,142,223,.45);
}
.float-bar a{
  display:grid;place-items:center;gap:3px;padding:10px 4px;color:#fff;
  text-decoration:none;font-size:10px;font-weight:600;border-right:1px solid rgba(255,255,255,.18);
}
.float-bar a:last-child{border-right:0}
.float-bar a:hover{background:rgba(0,0,0,.08);text-decoration:none;color:#fff}
.float-bar svg{width:22px;height:22px;display:block}

@media (max-width:980px){
  .benefits-strip{grid-template-columns:1fr 1fr}
  .benefits-strip article:nth-child(2n){border-right:0}
  .partner-badge,.store-link{display:none}
  .search-wrap{max-width:none}
  .header-nav{flex-wrap:wrap}
  .nav-links{gap:4px 12px;max-width:100%}
  .nav-auth{border-left:0;padding-left:0;margin-left:auto}
  .pdp{grid-template-columns:1fr;gap:22px}
  .gallery{position:static}
  .bonus-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-social-pay{align-items:flex-start}
  .pay-logos{justify-content:flex-start}
  .quick-links{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .announce{font-size:11px;padding:10px 32px}
  .benefits-strip{grid-template-columns:1fr}
  .benefits-strip article{border-right:0;border-bottom:1px solid var(--line)}
  .header-top{flex-wrap:wrap}
  .search-wrap{order:3;flex:1 1 100%;max-width:none}
  .bonus-grid,.footer-grid{grid-template-columns:1fr}
  .ship-row{grid-template-columns:1fr}
}