:root{
  --pink:#ff6b9d; --purple:#a45cff; --soft:#ffd1e3;
  --ink:#3a2b46; --muted:#8a7b94; --bg:#fff7fb; --card:#fff;
  --line:#ffe1ec; --ok:#2bb673; --shadow:0 10px 30px rgba(164,92,255,.12);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"PingFang SC","Segoe UI",Roboto,sans-serif;
  color:var(--ink);background:linear-gradient(180deg,#fff 0%,var(--bg) 40%);line-height:1.6}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}
/* top bar */
.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:800;font-size:19px;letter-spacing:.5px;
  background:linear-gradient(90deg,var(--pink),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.brand small{display:block;font-size:11px;letter-spacing:3px;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.nav{display:flex;gap:18px;align-items:center;font-size:14px}
.nav a:hover{color:var(--pink)}
.cart-btn{position:relative;background:linear-gradient(90deg,var(--pink),var(--purple));color:#fff;
  padding:8px 14px;border-radius:999px;font-weight:600;font-size:13px}
.cart-btn .badge{position:absolute;top:-6px;right:-6px;background:#ff3b6b;color:#fff;font-size:11px;
  min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px}
/* hero */
.hero{padding:54px 0 30px;text-align:center}
.hero h1{font-size:40px;margin:0 0 12px;line-height:1.25}
.hero h1 span{background:linear-gradient(90deg,var(--pink),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);max-width:560px;margin:0 auto 22px;font-size:16px}
.btn{display:inline-block;background:linear-gradient(90deg,var(--pink),var(--purple));color:#fff;
  padding:12px 26px;border-radius:999px;font-weight:600;box-shadow:var(--shadow);cursor:pointer;border:0;font-size:15px}
.btn.ghost{background:#fff;color:var(--purple);border:1px solid var(--line);box-shadow:none}
.section{padding:34px 0}
.section h2{font-size:24px;margin:0 0 6px}
.section .sub{color:var(--muted);margin:0 0 18px;font-size:14px}
/* category chips */
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.chip{padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13px;cursor:pointer;color:var(--muted)}
.chip.on{background:linear-gradient(90deg,var(--pink),var(--purple));color:#fff;border:0}
/* product grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .pic{height:160px;display:flex;align-items:center;justify-content:center;font-size:64px;
  background:radial-gradient(circle at 30% 20%,#ffe9f2,#f3e9ff)}
.card .body{padding:14px 16px;flex:1;display:flex;flex-direction:column}
.card .cat{font-size:11px;color:var(--purple);letter-spacing:1px}
.card h3{margin:4px 0 6px;font-size:17px}
.card .desc{color:var(--muted);font-size:13px;flex:1}
.card .foot{display:flex;align-items:center;justify-content:space-between;margin-top:10px}
.price{color:var(--pink);font-weight:800;font-size:17px}
.price small{color:var(--muted);font-weight:400;font-size:12px}
/* product detail */
.detail{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;padding-top:24px}
.detail .pic{height:320px;border-radius:20px;display:flex;align-items:center;justify-content:center;
  font-size:120px;background:radial-gradient(circle at 30% 20%,#ffe9f2,#f3e9ff)}
.opt{margin:14px 0}
.opt label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.opt input[type=text],.opt textarea,.opt select{width:100%;padding:10px 12px;border:1px solid var(--line);
  border-radius:10px;font-size:14px;font-family:inherit}
.colors{display:flex;gap:10px}
.swatch{width:34px;height:34px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px var(--line);cursor:pointer}
.swatch.on{box-shadow:0 0 0 2px var(--purple)}
.preview{margin-top:16px;padding:16px;border:1px dashed var(--purple);border-radius:14px;background:#fcf7ff;font-size:14px}
.preview b{color:var(--purple)}
.thumb{margin-top:10px;max-width:120px;border-radius:10px;border:1px solid var(--line)}
/* cart */
.cart-item{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:12px;margin-bottom:12px}
.cart-item .pic{width:64px;height:64px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:34px;background:radial-gradient(circle at 30% 20%,#ffe9f2,#f3e9ff);flex:none}
.cart-item .info{flex:1}
.cart-item .info .nm{font-weight:600}
.cart-item .info .meta{font-size:12px;color:var(--muted)}
.qty{display:flex;align-items:center;gap:8px}
.qty button{width:28px;height:28px;border-radius:8px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:16px}
.summary{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;position:sticky;top:80px}
.summary .row{display:flex;justify-content:space-between;margin:6px 0;font-size:14px}
.summary .total{font-size:20px;font-weight:800;color:var(--pink);border-top:1px dashed var(--line);padding-top:10px;margin-top:10px}
.field{margin:10px 0}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}
.field input,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit}
.empty{text-align:center;color:var(--muted);padding:40px 0}
.ok-box{text-align:center;padding:30px;background:#fff;border:1px solid var(--line);border-radius:18px}
.ok-box .big{font-size:48px}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:var(--ink);color:#fff;
  padding:10px 18px;border-radius:999px;font-size:14px;opacity:0;transition:.3s;z-index:50;pointer-events:none}
.toast.show{opacity:1}
footer{padding:30px 0;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--line);margin-top:40px}
@media(max-width:760px){.grid{grid-template-columns:1fr 1fr}.detail{grid-template-columns:1fr}.hero h1{font-size:30px}}
@media(max-width:480px){.grid{grid-template-columns:1fr}.nav{gap:12px}}

/* 支付面板 */
.pay-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;text-align:center}
.pay-card h3{margin:0 0 8px;font-size:18px}
.pay-card .muted{color:var(--muted);font-size:13px;line-height:1.6;margin:6px 0 14px}
.qr{width:200px;height:200px;border-radius:12px;border:1px solid var(--line);margin:6px auto}
.qr-row{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin:8px 0}
.qr-wrap{display:flex;flex-direction:column;align-items:center}
.qr-tt{font-size:13px;color:var(--muted);margin-bottom:4px}
.demo-qr{width:160px;height:160px;margin:10px auto;border:2px dashed var(--purple);border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--purple)}
code{background:#f3f1ff;padding:1px 6px;border-radius:6px;font-size:12px;color:#5b4bef}

/* 关系馆（先玩后买 / 内容引擎） */
.rel-cluster{margin:22px 0}
.rel-cluster-title{font-size:16px;color:var(--ink);margin:0 0 12px;font-weight:700}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.rel-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;
  text-align:center;transition:.2s;box-shadow:var(--shadow)}
.rel-card:hover{transform:translateY(-3px);border-color:var(--pink)}
.rel-emoji{font-size:30px}
.rel-name{font-weight:700;margin:6px 0 4px;font-size:15px}
.rel-desc{color:var(--muted);font-size:12px;line-height:1.5}
@media(max-width:480px){.rel-grid{grid-template-columns:1fr 1fr}}

/* 代销商品标识 */
.badge-dx{display:inline-block;background:linear-gradient(135deg,#fff0d6,#ffe0ec);color:#c9762a;
  border:1px solid #ffd9a8;padding:1px 8px;border-radius:999px;font-size:11px;font-weight:700}
.dx-tag{display:inline-block;background:#fff7ed;border:1px solid #ffd9a8;color:#b45309;
  font-size:12px;padding:6px 10px;border-radius:10px;margin:6px 0 2px}
.dx-tag b{color:#9a3412}