:root{
  --ink:#0d1b26; --ink2:#3f5364; --ink3:#7b8b99;
  --paper:#f7f5f0; --card:#fff; --line:#e2ddd2;
  --brand:#0f3b5c; --brand2:#164e75; --rust:#b4551f; --green:#1f6f5c;
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.75;font-size:16px}
a{color:var(--brand);text-decoration:none}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.hd{position:sticky;top:0;z-index:60;background:rgba(247,245,240,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;gap:26px;height:66px}
.logo{display:flex;align-items:center;flex:0 0 auto}
.logo img{display:block;height:40px;width:auto}
.nav{display:flex;gap:22px;margin-left:auto;font-size:14.5px}
.nav a{color:var(--ink2);padding:4px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a.on{color:var(--brand);border-color:var(--rust)}
.hd-tel{display:inline-flex;align-items:center;gap:7px;background:var(--brand);color:#fff;padding:9px 15px;border-radius:999px;font-size:14px;font-weight:600}
.hd-tel:hover{background:var(--brand2);color:#fff}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;padding:7px 10px;font-size:18px;line-height:1;color:var(--ink)}

/* ---------- hero ---------- */
.hero{background:
   radial-gradient(900px 420px at 78% 12%, rgba(180,85,31,.18), transparent 60%),
   linear-gradient(150deg,#0b1c29 0%,#10334a 55%,#0d2636 100%);
  color:#eaf1f6;padding:74px 0 66px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:64px 64px;pointer-events:none}
.hero .wrap{position:relative;z-index:2}
.kicker{display:inline-block;font-size:12px;letter-spacing:2.4px;color:#e6b38a;border:1px solid rgba(230,179,138,.4);padding:5px 12px;border-radius:999px;margin-bottom:20px}
.hero h1{font-family:var(--serif);font-size:clamp(30px,4.4vw,52px);line-height:1.24;margin:0 0 16px;letter-spacing:.5px}
.hero h1 em{font-style:normal;color:#f0a86d}
.hero p.lede{font-size:clamp(15px,1.5vw,18px);color:#c3d3de;max-width:640px;margin:0 0 30px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:38px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;transition:.18s}
.btn-p{background:var(--rust);color:#fff}
.btn-p:hover{background:#9c481a;color:#fff}
.btn-g{border-color:rgba(255,255,255,.35);color:#eaf1f6}
.btn-g:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.06)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:12px;overflow:hidden;max-width:720px}
.stat{background:rgba(8,24,36,.55);padding:16px 18px}
.stat b{display:block;font-family:var(--serif);font-size:27px;color:#fff;line-height:1.15}
.stat b i{font-style:normal;font-size:14px;margin-left:3px;color:#e6b38a}
.stat span{font-size:12.5px;color:#a9bccb}

/* ---------- trust strip ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust .wrap{display:flex;flex-wrap:wrap;gap:10px 30px;align-items:center;padding:13px 20px;font-size:13px;color:var(--ink2)}
.trust b{color:var(--brand);font-weight:700}
.trust .dot{width:5px;height:5px;border-radius:50%;background:var(--rust);display:inline-block;margin-right:7px;vertical-align:2px}

/* ---------- sections ---------- */
section{padding:64px 0}
section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.slabel{font-size:11.5px;letter-spacing:3px;color:var(--rust);font-weight:700;margin-bottom:10px}
h2{font-family:var(--serif);font-size:clamp(23px,2.6vw,33px);line-height:1.28;margin:0 0 12px;letter-spacing:.3px}
.sub{color:var(--ink2);max-width:760px;margin:0 0 34px;font-size:15.5px}

/* ---------- cards ---------- */
.grid{display:grid;gap:16px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.card h3{font-family:var(--serif);font-size:18px;margin:0 0 8px}
.card p{margin:0;font-size:14px;color:var(--ink2)}
.card .tag{display:inline-block;font-size:11.5px;color:var(--green);background:#eef4f1;border-radius:999px;padding:2px 9px;margin-bottom:10px}
.entry{background:#fff;border:1px solid var(--line);border-left:3px solid var(--rust);border-radius:12px;padding:22px}
.entry h3{margin:0 0 6px;font-size:17px;font-family:var(--serif)}
.entry p{margin:0 0 12px;font-size:13.8px;color:var(--ink2)}
.entry a{font-size:13.5px;font-weight:600}

/* product grid */
.prod{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;transition:.18s}
.pcard:hover{border-color:var(--brand);transform:translateY(-2px)}
.pcard h3{font-family:var(--serif);font-size:17px;margin:0 0 6px}
.pcard p{font-size:13px;color:var(--ink2);margin:0 0 12px;flex:1}
.pcard .mdl{font-size:11.8px;color:var(--ink3);letter-spacing:.2px}
.pcard a{font-size:13px;font-weight:600;color:var(--rust)}

/* table */
table{width:100%;border-collapse:collapse;background:#fff;font-size:14px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f1eee6;font-weight:700;font-size:13px;color:var(--ink);white-space:nowrap}
tr:last-child td{border-bottom:0}
.tw{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:12px}

/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:11px;padding:0;margin-bottom:10px}
details summary{cursor:pointer;padding:15px 18px;font-weight:600;font-size:15px;list-style:none;position:relative;padding-right:44px}
details summary::-webkit-details-marker{display:none}
details summary:after{content:"+";position:absolute;right:18px;top:13px;color:var(--rust);font-size:19px;font-weight:400}
details[open] summary:after{content:"−"}
details .ans{padding:0 18px 16px;color:var(--ink2);font-size:14.3px}
details .ans b{color:var(--ink)}

/* callout */
.note{background:#fdf6ee;border:1px solid #efdcc6;border-left:3px solid var(--rust);border-radius:10px;padding:16px 18px;font-size:14px;color:#6b4a2f}

/* cta band */
.band{background:linear-gradient(135deg,var(--brand) 0%,#0b2b42 100%);color:#eaf1f6;padding:52px 0}
.band h2{color:#fff;margin-bottom:8px}
.band p{color:#bfd0db;margin:0 0 22px;font-size:15px}

/* footer */
footer{background:#0b1c29;color:#93a7b6;padding:46px 0 84px;font-size:13.5px}
footer a{color:#c6d5e0}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;margin-bottom:26px}
footer h6{color:#fff;font-size:13px;letter-spacing:1px;margin:0 0 10px}
footer p{margin:0 0 6px;line-height:1.9}
.copy{border-top:1px solid rgba(255,255,255,.1);padding-top:16px;font-size:12.5px;color:#6d8291}

/* mobile action bar */
.mbar{display:none}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .prod{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:1fr}
}
@media (max-width:760px){
  body{font-size:15.5px}
  .hd-in{height:58px;gap:10px}
  .nav{display:none;position:absolute;top:58px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 0;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .nav.open{display:flex}
  .nav a{padding:12px 20px;border-bottom:1px solid #f2efe8;border-left:0}
  .burger{display:block}
  .logo img{height:34px}
  .hd-tel{display:none}
  .hero{padding:48px 0 44px}
  .stats{grid-template-columns:1fr 1fr 1fr;gap:1px}
  .stat{padding:12px 10px}
  .stat b{font-size:21px}
  .stat span{font-size:11px}
  section{padding:46px 0}
  .g2,.g4,.prod{grid-template-columns:1fr}
  footer{padding-bottom:96px}
  .fgrid{grid-template-columns:1fr;gap:22px}
  table{font-size:13px}
  th,td{padding:9px 11px}
  .mbar{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;position:fixed;left:0;right:0;bottom:0;z-index:80;background:var(--line);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
  .mbar a{background:#fff;text-align:center;padding:11px 0 10px;font-size:13px;font-weight:600;color:var(--brand)}
  .mbar a.p{background:var(--rust);color:#fff}
  .mbar span{display:block;font-size:10px;font-weight:400;color:var(--ink3)}
  .mbar a.p span{color:#f3d8c6}
}

/* ---------- language switch ---------- */
.lang{white-space:nowrap}
.hd-tel{white-space:nowrap}
.lang{display:inline-flex;align-items:center;justify-content:center;min-width:46px;padding:7px 12px;border:1px solid var(--line);border-radius:999px;font-size:13px;font-weight:600;color:var(--ink2);background:#fff}
.lang:hover{color:var(--brand);border-color:var(--brand)}
@media (max-width:760px){
  .hd-in{gap:12px}
  .burger{order:3;margin-left:auto}
  .lang{order:2}
  .hd-tel{order:4}
}

/* grid children must be allowed to shrink, otherwise a wide table inside a card
   pushes the whole page wider than the viewport on 375px screens */
.grid > *{min-width:0}
.tw{max-width:100%}

/* ---------- header collapse below 900px (tablet portrait) ---------- */
@media (max-width:980px){
  .hd-in{height:58px;gap:10px}
  .nav{display:none;position:absolute;top:58px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 0;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .nav.open{display:flex}
  .nav a{padding:12px 20px;border-bottom:1px solid #f2efe8;border-left:0}
  .burger{display:block;order:3;margin-left:auto}
  .logo img{height:34px}
  .hd-tel{display:none}
  footer{padding-bottom:96px}
  .mbar{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;position:fixed;left:0;right:0;bottom:0;z-index:80;background:var(--line);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
  .mbar a{background:#fff;text-align:center;padding:11px 0 10px;font-size:13px;font-weight:600;color:var(--brand)}
  .mbar a.p{background:var(--rust);color:#fff}
  .mbar span{display:block;font-size:10px;font-weight:400;color:var(--ink3)}
  .mbar a.p span{color:#f3d8c6}
}

#wecom{scroll-margin-top:84px}
@media (max-width:980px){#wecom{scroll-margin-top:72px}}

.nav a{white-space:nowrap}
@media (max-width:1080px){
  .hd-in{gap:16px}
  .nav{gap:14px}
}