:root{
  --ink:#0e1726; --ink2:#3c4a5f; --muted:#7c8a9e;
  --line:#e3e8ef; --bg:#f6f8fb; --card:#fff;
  --brand:#0f4c81; --accent:#e0a33e; --wa:#25d366;
  --r:14px; --shadow:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink); background:var(--bg); -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1240px;margin:0 auto;padding:0 20px}

/* top bar */
.topbar{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:9px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:.5px;font-size:14px}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt strong{font-size:15px}
.brand-txt em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.searchbox{flex:1;display:flex;align-items:center;gap:8px;background:#f4f6fa;border:1px solid var(--line);border-radius:10px;padding:0 12px;height:42px;max-width:560px}
.searchbox svg{width:18px;height:18px;fill:#93a1b5;flex:0 0 auto}
.searchbox input{border:0;background:transparent;outline:none;font-size:14px;width:100%;color:var(--ink)}
.cta{flex:0 0 auto;background:var(--wa);color:#fff;font-weight:600;font-size:13.5px;padding:10px 16px;border-radius:9px}
.cta:hover{filter:brightness(.95)}

/* hero */
.hero{background:linear-gradient(135deg,#0f4c81 0%,#123c63 60%,#0e1726 100%);color:#fff;padding:34px 0 30px}
.hero h1{margin:0 0 8px;font-size:28px;letter-spacing:-.2px}
.hero p{margin:0;color:#c8d6e6;font-size:14.5px;max-width:720px}
.crumb{font-size:12.5px;color:#9fb6cf;margin-bottom:10px}
.crumb a{color:#c8d6e6;border-bottom:1px solid rgba(255,255,255,.25)}
.crumb span{margin:0 6px;opacity:.6}

/* filter bar */
.bar{position:sticky;top:68px;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar-in{display:flex;align-items:center;justify-content:space-between;gap:12px;height:56px}
.chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;flex:1 1 auto;min-width:0;padding-right:8px}
.chips::-webkit-scrollbar{display:none}
.chip{border:1px solid var(--line);background:#fff;color:var(--ink2);font-size:13px;padding:7px 13px;border-radius:999px;white-space:nowrap;cursor:pointer}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
.bar-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.count{font-size:13px;color:var(--muted)}
select{font-size:13px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink2)}

/* grid */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:22px 0 40px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;cursor:pointer;display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.card-img{position:relative;aspect-ratio:4/3;background:#eef2f7;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.card:hover .card-img img{transform:scale(1.04)}
.badge{position:absolute;left:10px;top:10px;background:rgba(14,23,38,.82);color:#fff;font-size:11px;font-weight:600;letter-spacing:.03em;padding:4px 8px;border-radius:6px}
.card-b{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-t{font-size:14px;font-weight:600;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.card-s{font-size:12.5px;color:var(--muted);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-f{margin-top:auto;display:flex;align-items:baseline;justify-content:space-between;padding-top:8px}
.price{font-size:15px;font-weight:700;color:var(--brand)}
.price small{font-weight:500;color:var(--muted);font-size:11.5px}
.more{font-size:12.5px;color:var(--muted)}

.empty{text-align:center;color:var(--muted);padding:60px 0}

/* footer */
.foot{border-top:1px solid var(--line);background:#fff;padding:22px 0;margin-top:10px}
.foot p{margin:0 0 4px;font-size:13px}
.foot .muted{color:var(--muted);font-size:12px}

/* modal */
.modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:24px}
.modal[hidden]{display:none}
.modal-bg{position:absolute;inset:0;background:rgba(10,17,28,.55);backdrop-filter:blur(2px)}
.modal-in{position:relative;background:#fff;border-radius:18px;max-width:1080px;width:100%;max-height:calc(100vh - 48px);overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-x{position:absolute;right:12px;top:10px;width:36px;height:36px;border:0;border-radius:50%;background:#f1f4f8;font-size:22px;line-height:1;cursor:pointer;z-index:2}
.m-body{display:grid;grid-template-columns:1.05fr 1fr;gap:0}
.m-left{background:#f6f8fb;padding:18px}
.m-main{aspect-ratio:4/3;background:#fff;border-radius:12px;overflow:hidden;display:grid;place-items:center}
.m-main img{width:100%;height:100%;object-fit:contain}
.m-thumbs{display:flex;gap:8px;margin-top:10px;overflow-x:auto;scrollbar-width:none}
.m-thumbs::-webkit-scrollbar{display:none}
.m-thumb{width:62px;height:62px;flex:0 0 auto;border-radius:8px;overflow:hidden;border:2px solid transparent;cursor:pointer;background:#fff}
.m-thumb.on{border-color:var(--brand)}
.m-thumb img{width:100%;height:100%;object-fit:cover}
.m-right{padding:26px 26px 22px}
.m-model{display:inline-block;background:#eef3fa;color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.04em;padding:4px 9px;border-radius:6px;margin-bottom:10px}
.m-right h2{margin:0 0 8px;font-size:21px;line-height:1.3}
.m-price{font-size:20px;font-weight:800;color:var(--brand);margin-bottom:12px}
.m-price small{font-size:12px;font-weight:500;color:var(--muted);margin-left:6px}
.m-sum{color:var(--ink2);font-size:14px;line-height:1.6;margin:0 0 16px}
.m-actions{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap}
.btn{padding:11px 18px;border-radius:9px;font-size:14px;font-weight:600}
.btn-wa{background:var(--wa);color:#fff}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink2)}
.m-spec h3{font-size:13px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:0 0 8px}
.m-spec table{width:100%;border-collapse:collapse;font-size:13.5px}
.m-spec td{padding:8px 0;border-bottom:1px solid var(--line);vertical-align:top}
.m-spec td:first-child{color:var(--muted);width:42%}

@media (max-width:1080px){ .grid{grid-template-columns:repeat(3,1fr)} }
@media (max-width:820px){
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .brand-txt{display:none}
  .hero h1{font-size:22px}
  .bar-in{height:auto;padding:10px 0;flex-wrap:wrap}
  .m-body{grid-template-columns:1fr}
  .m-right{padding:18px}
  .modal{padding:0}
  .modal-in{max-height:100vh;border-radius:0;height:100vh}
}
@media (max-width:520px){
  .grid{grid-template-columns:1fr 1fr}
  .card-t{font-size:13px}
  .searchbox{height:38px}
}

.vbadge{position:absolute;right:10px;bottom:10px;background:rgba(200,32,38,.94);color:#fff;font-size:11px;font-weight:700;letter-spacing:.03em;padding:4px 9px;border-radius:6px;box-shadow:0 2px 6px rgba(0,0,0,.18)}
.m-video{margin:0 0 18px}
.btn-play{background:#c82026;color:#fff}
.m-video-box{margin-top:10px;aspect-ratio:16/9;background:#000;border-radius:10px;overflow:hidden}
.m-video-box iframe{width:100%;height:100%;border:0;display:block}