:root{
  --ink:#1c2530; --sub:#5b6675; --faint:#8a94a3; --line:#e7eaf0;
  --bg:#ffffff; --panel:#f7f8fa; --chip:#eef1f4;
  --accent:#0f9b8e; --accent-d:#0b7d72; --wood:#b08968; --wood-d:#94705a;
  --shadow:0 1px 2px rgba(28,37,48,.06),0 6px 22px rgba(28,37,48,.08);
  --radius:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;line-height:1.55}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}

/* ---- topbar ---- */
.topbar{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar-inner{max-width:1280px;margin:0 auto;padding:0 22px;height:62px;
  display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:7px;text-decoration:none;color:var(--ink);white-space:nowrap}
.brand-logo{width:34px;height:34px;object-fit:contain;flex:0 0 auto;
  filter:drop-shadow(0 1px 3px rgba(0,0,0,.35));transition:transform .2s}
.brand:hover .brand-logo{transform:rotate(-8deg) scale(1.06)}
.brand-logo+.brand-mark{margin-left:-1px}
.brand-mark{background:var(--accent);color:#fff;font-weight:800;font-size:15px;
  padding:3px 8px;border-radius:7px;letter-spacing:1px}
.brand-name{font-weight:700;font-size:16px;letter-spacing:.5px}
.nav{display:flex;gap:4px;margin-left:6px}
.nav-btn{padding:7px 13px;border-radius:8px;font-size:14px;font-weight:600;color:var(--sub);
  transition:.15s;white-space:nowrap}
.nav-btn:hover{background:var(--chip);color:var(--ink)}
.nav-btn.active{background:var(--ink);color:#fff}
.search{margin-left:auto;position:relative;display:flex;align-items:center}
.search input{width:200px;height:36px;border:1px solid var(--line);border-radius:9px;
  padding:0 12px 0 32px;font-size:13px;background:var(--panel);transition:.18s}
.search input:focus{outline:none;width:250px;border-color:var(--accent);background:#fff}
.search-ico{position:absolute;left:10px;color:var(--faint);font-size:16px}

/* ---- hero ---- */
.hero{background:linear-gradient(135deg,#0f9b8e 0%,#0b7d72 55%,#1c2530 130%);
  color:#fff;position:relative;overflow:hidden}
.hero::after{content:"赖恩健身器材";position:absolute;inset:0;
  font-size:120px;font-weight:800;color:rgba(255,255,255,.05);
  display:flex;align-items:center;justify-content:center;letter-spacing:8px;
  pointer-events:none;white-space:nowrap}
.hero-inner{max-width:1280px;margin:0 auto;padding:54px 22px 46px;position:relative}
.hero h1{margin:0 0 10px;font-size:34px;font-weight:800;letter-spacing:1px}
.hero h1 span{font-weight:500;opacity:.85;font-size:22px;margin-left:8px}
.tagline{margin:0 0 22px;opacity:.92;font-size:15px;max-width:760px}
.stats{display:flex;flex-wrap:wrap;gap:10px}
.stat{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  border-radius:10px;padding:10px 16px}
.stat b{font-size:20px;display:block}
.stat span{font-size:12px;opacity:.85}

/* ---- main ---- */
.wrap{max-width:1280px;margin:0 auto;padding:30px 22px 70px}
.cat-sec{margin-bottom:46px}
.cat-head{display:flex;align-items:baseline;gap:14px;margin-bottom:6px;
  border-bottom:2px solid var(--line);padding-bottom:12px}
.cat-head .no{font-size:13px;font-weight:800;color:var(--accent);
  background:#e6f4f2;padding:3px 9px;border-radius:6px;letter-spacing:1px}
.cat-head h2{margin:0;font-size:24px;font-weight:800;letter-spacing:.5px}
.cat-head .cnt{font-size:13px;color:var(--faint);font-weight:500}
.cat-desc{color:var(--sub);font-size:14px;margin:4px 0 18px;max-width:900px}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px}
.chip{padding:5px 12px;border:1px solid var(--line);border-radius:20px;
  font-size:12.5px;color:var(--sub);background:#fff;transition:.15s}
.chip:hover{border-color:var(--accent);color:var(--accent-d)}
.chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.series-note{font-size:13px;color:var(--faint);margin:0 0 10px;font-weight:600;grid-column:1/-1}
.series-note .ct{color:var(--accent-d)}

/* ---- grid ---- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:1180px){.grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.grid{grid-template-columns:repeat(2,1fr);gap:14px}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:.18s;
  box-shadow:var(--shadow)}
.card:hover{transform:translateY(-3px);border-color:#cdd6df}
.fig{position:relative;aspect-ratio:1/1;background:var(--panel);
  display:flex;align-items:center;justify-content:center;overflow:hidden}
.fig img{width:100%;height:100%;object-fit:contain;padding:8px}
.fig .wm{position:absolute;left:6px;bottom:6px;font-size:9px;font-weight:700;
  color:#fff;background:rgba(15,155,142,.78);padding:2px 6px;border-radius:5px;letter-spacing:.5px}
.fig .no-badge{position:absolute;top:7px;left:7px;background:var(--ink);color:#fff;
  font-size:11px;font-weight:700;padding:2px 7px;border-radius:5px}
.fig .ph{color:var(--faint);font-size:12px;text-align:center;padding:24px}
.card-body{padding:11px 12px 13px}
.card-name{font-size:14px;font-weight:700;line-height:1.35;margin:0 0 6px;
  color:var(--ink);min-height:38px}
.card-specs{display:flex;flex-wrap:wrap;gap:4px}
.card-specs .sp{font-size:11px;color:var(--sub);background:var(--chip);
  padding:2px 7px;border-radius:5px;max-width:100%;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card-series{font-size:11px;color:var(--wood-d);font-weight:600;margin-top:7px}
.empty-card{border-style:dashed;background:var(--panel);text-align:center;color:var(--sub)}
.empty-card .fig{background:repeating-linear-gradient(45deg,#f0f2f5,#f0f2f5 8px,#eef1f4 8px,#eef1f4 16px)}
.empty-card .big{font-size:30px;margin-bottom:8px;opacity:.5}

/* ---- modal ---- */
.modal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;padding:24px}
.modal[hidden]{display:none}
.modal-mask{position:absolute;inset:0;background:rgba(20,28,38,.55);backdrop-filter:blur(3px)}
.modal-card{position:relative;max-width:720px;width:100%;max-height:88vh;overflow:auto;
  background:#fff;border-radius:16px;box-shadow:0 24px 70px rgba(0,0,0,.3)}
.mc-close{position:absolute;top:14px;right:16px;width:34px;height:34px;border-radius:50%;
  background:rgba(0,0,0,.4);color:#fff;font-size:18px;display:flex;align-items:center;justify-content:center;z-index:2}
.mc-img{width:100%;max-height:380px;object-fit:contain;background:var(--panel);border-radius:16px 16px 0 0}
.mc-body{padding:22px 26px 28px}
.mc-body h3{margin:0 0 6px;font-size:22px;font-weight:800}
.mc-meta{font-size:13px;color:var(--faint);margin-bottom:14px}
.mc-row{margin-bottom:16px}
.mc-row h4{margin:0 0 7px;font-size:13px;color:var(--accent-d);font-weight:700;letter-spacing:.5px}
.mc-specs{display:flex;flex-wrap:wrap;gap:6px}
.mc-specs .sp{font-size:12.5px;background:var(--chip);color:var(--ink);padding:4px 10px;border-radius:6px}
.mc-config{font-size:13.5px;color:var(--sub);line-height:1.75;white-space:pre-line}
.mc-desc{font-size:14px;color:var(--ink);line-height:1.7}
.mc-usage{font-size:13.5px;color:var(--sub);line-height:1.7}
.mc-wm{text-align:right;font-size:11px;color:var(--faint);margin-top:18px;padding-top:12px;border-top:1px solid var(--line)}

/* ---- footer / contact ---- */
.footer{background:#161d26;color:#cdd6df;border-top:4px solid var(--accent);scroll-margin-top:80px}
.contact-inner{max-width:1280px;margin:0 auto;padding:48px 22px 28px;
  display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:36px}
.contact-col{display:flex;flex-direction:column}
.contact-brand-row{display:flex;align-items:center;gap:9px;margin-bottom:10px}
.brand-logo-lg{width:46px;height:46px}
.contact-brand .brand-mark{background:var(--accent);color:#fff;font-weight:800;font-size:17px;
  padding:4px 9px;border-radius:7px;letter-spacing:1px}
.contact-brand .brand-name{font-weight:700;font-size:18px;color:#fff;letter-spacing:.5px}
.contact-tagline{font-size:13px;color:#8a94a3;line-height:1.7;margin:0 0 14px;max-width:340px}
.contact-badges{display:flex;flex-wrap:wrap;gap:6px}
.contact-badges .cb{font-size:11px;color:#9dded7;background:rgba(15,155,142,.16);
  border:1px solid rgba(15,155,142,.32);padding:3px 8px;border-radius:5px;letter-spacing:.3px}
.contact-h{margin:0 0 12px;font-size:15px;font-weight:700;color:#fff;letter-spacing:.5px;
  position:relative;padding-left:12px}
.contact-h::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;
  background:var(--accent);border-radius:2px}
.contact-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.contact-list li{display:flex;align-items:center;gap:9px;font-size:13.5px;color:#cdd6df;flex-wrap:wrap}
.contact-list .ico{display:inline-flex;width:22px;height:22px;border-radius:50%;
  background:rgba(255,255,255,.08);align-items:center;justify-content:center;
  font-size:12px;color:#9dded7;flex-shrink:0}
.contact-list .lab{color:#8a94a3;font-size:12px;margin-right:3px}
.contact-list .val{color:#fff;font-weight:600;word-break:break-all}
.contact-list .val a{color:#fff;text-decoration:none;border-bottom:1px dotted rgba(255,255,255,.3)}
.contact-list .val a:hover{color:var(--accent);border-color:var(--accent)}
.contact-addr{font-size:13.5px;color:#cdd6df;line-height:1.7;margin-bottom:14px}
.contact-addr .lab{display:block;color:#8a94a3;font-size:12px;margin-bottom:4px}
.contact-addr .val{color:#fff;font-weight:600}
.contact-social{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-start}
.contact-social a{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;
  color:#cdd6df;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  padding:6px 11px;border-radius:7px;text-decoration:none;transition:.18s}
.contact-social a:hover{background:rgba(15,155,142,.18);border-color:var(--accent);color:#fff}
.contact-social .si{width:16px;height:16px;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px}

/* 微信二维码卡片 */
.contact-qr{display:inline-block;cursor:pointer;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:10px;padding:8px;transition:.18s}
.contact-qr:hover{background:rgba(15,155,142,.14);border-color:var(--accent);transform:translateY(-2px)}
.contact-qr img{width:110px;height:110px;object-fit:contain;background:#fff;
  border-radius:7px;padding:5px;display:block}

/* 二维码大图弹窗 */
.qr-big{display:block;margin:0 auto;max-width:320px;width:70%;
  border-radius:12px;background:#fff}
.qr-big-cap{text-align:center;font-size:14px;color:var(--sub);padding:16px 20px 26px;font-weight:600}
.foot-bottom{max-width:1280px;margin:0 auto;padding:18px 22px;display:flex;
  justify-content:space-between;flex-wrap:wrap;gap:8px;border-top:1px solid rgba(255,255,255,.08);
  font-size:12px;color:#8a94a3}
.foot-bottom .foot-note{text-align:right}

/* nav 联系我们按钮 */
.nav-btn.nav-contact{margin-left:6px;background:transparent;border:1px solid var(--accent);
  color:var(--accent-d)}
.nav-btn.nav-contact:hover{background:var(--accent);color:#fff}

@media(max-width:760px){
  .contact-inner{grid-template-columns:1fr;gap:24px;padding:32px 22px 22px}
  .foot-bottom{flex-direction:column;text-align:left}
  .foot-bottom .foot-note{text-align:left}
}