*{box-sizing:border-box}
:root{
  --bg:#04070d;--panel:#070b12;--panel2:#0c111a;--line:rgba(118,146,210,.30);
  --muted:#95a0b4;--text:#f4f7fb;--blue:#4ea1ff;--red:#ff2f2f;--green:#0dd66e;
}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 18% 10%, rgba(31,74,181,.16), transparent 16%),linear-gradient(180deg,#02050b,#04070d);color:var(--text);font-family:Inter,Arial,sans-serif}
a{text-decoration:none;color:inherit}
.layout{display:grid;grid-template-columns:360px 1fr;min-height:100vh}
.sidebar{
  position:sticky;top:0;height:100vh;padding:28px 28px 20px;
  background:linear-gradient(180deg,#03060b 0%,#02040a 100%);
  border-right:1px solid rgba(255,255,255,.06)
}
.logo-wrap{display:flex;justify-content:center;margin-bottom:20px}
.logo{
  width:220px;max-width:100%;display:block;filter:drop-shadow(0 0 26px rgba(57,255,20,.10));
}
.brand{font-size:42px;line-height:1.02;font-weight:800;letter-spacing:-.05em;text-align:center;margin:0}
.verified{display:flex;justify-content:center;align-items:center;gap:10px;color:var(--green);font-size:20px;font-weight:700;margin:18px 0 26px}
.shield{width:18px;height:18px;border:2px solid var(--green);border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-top-left-radius:5px;border-top-right-radius:5px;position:relative}
.shield:after{content:"";position:absolute;left:4px;top:2px;width:5px;height:9px;border-right:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(40deg)}
.trust{text-align:center;color:#8a93a6;letter-spacing:.18em;font-size:14px;margin-bottom:16px}
.avatars{display:flex;justify-content:center;gap:0;margin-bottom:26px}
.avatar,.avatar-more{
  width:54px;height:54px;border-radius:50%;margin-left:-8px;border:3px solid #0a0d14;
  background:linear-gradient(135deg,#263548,#0e1117);display:grid;place-items:center;font-weight:700;color:#dfe7f4
}
.avatar:first-child{margin-left:0}
.avatar-more{background:#1f2430;color:#cfd7e6}
.desc{max-width:270px;margin:0 auto 34px;text-align:center;font-size:17px;line-height:1.7;color:#c2cade}
.socials{display:flex;justify-content:center;gap:22px;margin-top:14px}
.social{
  width:72px;height:72px;border-radius:50%;background:#2a2d33;
  display:grid;place-items:center;font-size:32px;color:#fff;transition:.2s
}
.social:hover{transform:translateY(-2px);background:#323744}
.copyright{position:absolute;bottom:22px;left:0;right:0;text-align:center;color:#7f8797;font-size:14px}
.main{padding:0 28px 60px}
.banner{position:sticky;top:0;z-index:20;background:linear-gradient(90deg,#0b1637,#143173,#0b1637);border-bottom:1px solid rgba(255,255,255,.08);overflow:hidden;margin:0 -28px 24px}
.banner-track{white-space:nowrap;padding:12px 0;display:inline-block;animation:marquee 18s linear infinite;font-weight:800;color:#e6f0ff}
@keyframes marquee{0%{transform:translateX(100vw)}100%{transform:translateX(-100%)}}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:18px 0 22px}
.topbar h2{margin:0;font-size:28px;letter-spacing:-.04em}
.sub{color:var(--muted);font-size:15px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{border-radius:22px;overflow:hidden;background:linear-gradient(180deg,#060b13,#05080e);border:1px solid var(--line);box-shadow:0 12px 30px rgba(0,0,0,.28)}
.thumb{height:164px;background:radial-gradient(circle at 20% 25%, rgba(37,99,235,.25), transparent 22%),linear-gradient(180deg,#02050a,#04070d);display:grid;place-items:center;font-size:76px;border-bottom:1px solid rgba(255,255,255,.04)}
.content{padding:18px 18px 20px}
.badge{position:absolute;top:12px;right:12px;background:var(--red);color:#fff;border-radius:999px;padding:8px 12px;font-size:12px;font-weight:800}
.card-top{position:relative}
.name{font-size:18px;font-weight:700;margin:0 0 8px}
.price-row{display:flex;gap:8px;align-items:center;margin-bottom:14px}
.price{font-size:18px;color:var(--blue);font-weight:800}
.old{font-size:14px;color:#848b9b;text-decoration:line-through}
.bullets{list-style:none;padding:0;margin:0 0 18px}
.bullets li{color:#9ca6b7;padding:4px 0;font-size:15px}
.bullets li:before{content:"✓";margin-right:8px;color:#7786a1}
.btn{display:block;width:100%;text-align:center;padding:14px 16px;border-radius:14px;border:1px solid rgba(255,255,255,.11);background:#12161f;color:#f3f6fb;font-weight:700}
.wrap{max-width:1320px}
.detail{
  display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:start;
  padding:10px 0 40px
}
.back{display:inline-block;color:#8d95a6;margin:10px 0 18px}
.detail-hero{
  border-radius:28px;overflow:hidden;background:linear-gradient(180deg,#060b13,#05080e);
  border:1px solid var(--line)
}
.detail-image{
  min-height:520px;background:radial-gradient(circle at 20% 25%, rgba(37,99,235,.25), transparent 22%),linear-gradient(180deg,#02050a,#04070d);
  display:grid;place-items:center;font-size:180px;position:relative
}
.detail-badge{position:absolute;left:20px;top:20px;background:#d83f3f;color:#fff;padding:10px 14px;border-radius:999px;font-weight:800}
.detail-title{font-size:58px;line-height:1;letter-spacing:-.05em;margin:8px 0 14px}
.rating{font-size:24px;color:#ffd44f}
.rating span{font-size:18px;color:#8f98ab}
.stock{display:inline-flex;padding:10px 14px;border-radius:10px;background:#0d7a37;color:#d9ffe8;font-weight:700;margin-left:10px;font-size:16px}
.detail-desc{font-size:18px;line-height:1.7;color:#c2cede;margin:18px 0 24px}
.info-cards{display:grid;gap:14px;margin:18px 0 24px}
.info{padding:18px 20px;border:1px solid rgba(255,255,255,.08);background:rgba(0,0,0,.22);border-radius:16px;color:#d7ddea}
.info b{margin-right:8px;color:#6ea8ff}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.cta{display:inline-flex;align-items:center;justify-content:center;padding:14px 20px;border-radius:14px;font-weight:800;border:1px solid rgba(255,255,255,.1)}
.cta.dark{background:#111723}
.cta.blue{background:#173f8f}
@media (max-width:1100px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:relative;height:auto;padding-bottom:100px}
  .copyright{position:static;margin-top:36px}
  .grid,.detail{grid-template-columns:1fr}
}
@media (max-width:720px){
  .grid{grid-template-columns:1fr}
  .brand{font-size:34px}
  .sidebar,.main{padding-left:18px;padding-right:18px}
  .banner{margin-left:-18px;margin-right:-18px}
  .detail-title{font-size:42px}
  .detail-image{min-height:320px;font-size:120px}
}