:root{
  --navy:#1B3A5C; --navy-d:#142C46; --orange:#FF6B35; --orange-d:#f05a24;
  --bg:#F5F7FA; --line:#E3E9F0; --txt:#1f2a37; --mut:#6b7785;
  --white:#fff; --shadow:0 2px 10px rgba(27,58,92,.08); --shadow-h:0 8px 22px rgba(27,58,92,.16);
  --r:10px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','Segoe UI',Arial,Helvetica,sans-serif;color:var(--txt);background:var(--white);line-height:1.6;font-size:15px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:1240px;margin:0 auto;padding:0 20px}
h1,h2,h3,h4{line-height:1.25;color:var(--navy);font-weight:700}
.sec{padding:56px 0}
.sec-head{text-align:center;margin-bottom:38px}
.sec-head h2{font-size:30px;margin-bottom:8px}
.sec-head p{color:var(--mut);max-width:640px;margin:0 auto}
.center{text-align:center}

/* buttons */
.btn{display:inline-block;padding:12px 26px;border-radius:8px;font-weight:600;font-size:15px;
  border:2px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.btn-p{background:var(--orange);color:#fff}
.btn-p:hover{background:var(--orange-d);transform:translateY(-1px)}
.btn-n{background:var(--navy);color:#fff}
.btn-n:hover{background:var(--navy-d)}
.btn-o{border-color:var(--navy);color:var(--navy);background:transparent}
.btn-o:hover{background:var(--navy);color:#fff}
.btn-sm{padding:8px 14px;font-size:13px;border-radius:7px}
.btn-w{background:#25D366;color:#fff}
.btn-w:hover{background:#1da851}

/* announcement */
.ann{background:var(--navy);color:#dbe6f2;font-size:13.5px;text-align:center;padding:8px 16px}
.ann b{color:#fff}

/* header */
header.site{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line)}
.hbar{display:flex;align-items:center;gap:26px;padding:14px 0}
.logo img{height:42px;width:auto}
.mainnav{display:flex;gap:22px;margin-left:auto}
.mainnav a{font-weight:600;font-size:15px;color:var(--navy);position:relative;padding:4px 0}
.mainnav a:hover,.mainnav a.act{color:var(--orange)}
.mainnav a.act::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--orange)}
.hact{display:flex;align-items:center;gap:10px}
.hact .btn{padding:10px 18px}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;margin-left:auto}
.burger span{width:26px;height:3px;background:var(--navy);border-radius:2px}
.mmenu{display:none;background:#fff;border-top:1px solid var(--line);padding:10px 20px 18px}
.mmenu a{display:block;padding:11px 4px;font-weight:600;color:var(--navy);border-bottom:1px solid var(--line)}

/* hero */
.hero{background:linear-gradient(120deg,var(--navy) 0%,#26507a 100%);color:#fff;padding:70px 0;position:relative;overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1{color:#fff;font-size:42px;margin-bottom:18px}
.hero p{font-size:17px;color:#d8e4f0;margin-bottom:28px;max-width:520px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-img{border-radius:14px;box-shadow:var(--shadow-h);overflow:hidden;background:#fff}
.hero-img img{width:100%;height:340px;object-fit:cover}
.hero-stats{display:flex;gap:30px;margin-top:34px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:26px;color:#fff}
.hero-stats span{font-size:13px;color:#bcd0e4}

/* feature strip */
.fstrip{background:var(--bg);border-bottom:1px solid var(--line)}
.fstrip .grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:30px 0}
.fitem{display:flex;gap:14px;align-items:flex-start;background:#fff;padding:18px;border-radius:var(--r);box-shadow:var(--shadow)}
.fitem .ic{width:44px;height:44px;flex:0 0 44px;border-radius:9px;background:#fff0e9;display:flex;align-items:center;justify-content:center;font-size:22px}
.fitem h4{font-size:15.5px;margin-bottom:2px}
.fitem p{font-size:13px;color:var(--mut)}

/* category grid */
.catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.catcard{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.18s}
.catcard:hover{box-shadow:var(--shadow-h);transform:translateY(-3px)}
.catcard .im{aspect-ratio:1/1;background:var(--bg);overflow:hidden}
.catcard .im img{width:100%;height:100%;object-fit:cover;transition:.3s}
.catcard:hover .im img{transform:scale(1.05)}
.catcard .tx{padding:14px 16px}
.catcard h3{font-size:16px;margin-bottom:2px}
.catcard span{font-size:12.5px;color:var(--mut)}
.catcard.coming{opacity:.75}
.catcard.coming .tag{display:inline-block;background:#eef3f8;color:var(--navy);font-size:11px;font-weight:700;padding:2px 9px;border-radius:20px;margin-top:6px}

/* product grid */
.progrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.procard{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.16s}
.procard:hover{box-shadow:var(--shadow-h);border-color:#cfdae6}
.procard .im{aspect-ratio:1/1;background:#fff;overflow:hidden;cursor:pointer}
.procard .im img{width:100%;height:100%;object-fit:contain}
.procard .bd{padding:11px 13px 13px;display:flex;flex-direction:column;gap:4px;flex:1}
.procard .mod{font-size:11.5px;color:var(--orange);font-weight:700;letter-spacing:.3px}
.procard .pn{font-size:13.5px;color:var(--txt);font-weight:600;line-height:1.35;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:36px}
.procard .qa{margin-top:auto;padding-top:8px}
.procard .qa .btn{width:100%;text-align:center}

/* shape grid (size guide) */
.shapgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
.shapecard{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.16s}
.shapecard:hover{box-shadow:var(--shadow-h);border-color:#cfdae6}
.shapecard .sim{position:relative;background:#0b0b0c;height:160px;display:flex;align-items:center;justify-content:center;cursor:zoom-in;overflow:hidden}
.shapecard .sim img{max-width:100%;max-height:100%;object-fit:contain}
.shapecard .reftag{position:absolute;top:8px;left:8px;background:rgba(255,107,53,.94);color:#fff;font-size:10px;font-weight:700;padding:2px 8px;border-radius:20px;letter-spacing:.3px}
.shapecard .sbd{padding:11px 13px 13px;display:flex;flex-direction:column;gap:3px;flex:1}
.shapecard .sm{font-size:12.5px;font-weight:700;color:var(--navy)}
.shapecard .ss{font-size:11.5px;color:var(--mut)}
.shapecard .qa{margin-top:auto;padding-top:8px}
.shapecard .qa .btn{width:100%;text-align:center}
#seriescount .chip{cursor:pointer;user-select:none}
#seriescount .chip.on{background:var(--navy);color:#fff}
.shapelb{position:fixed;inset:0;background:rgba(10,16,24,.88);display:none;align-items:center;justify-content:center;z-index:300;padding:30px;cursor:zoom-out}
.shapelb.show{display:flex}
.shapelb img{max-width:95%;max-height:93%;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.55)}

/* why / pl band */
.why{background:var(--bg)}
.why-in{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.why ul li{padding:10px 0 10px 34px;position:relative;border-bottom:1px dashed var(--line)}
.why ul li::before{content:"✓";position:absolute;left:0;top:9px;width:22px;height:22px;background:var(--orange);
  color:#fff;border-radius:50%;font-size:13px;display:flex;align-items:center;justify-content:center;font-weight:700}
.whyimg{border-radius:14px;overflow:hidden;box-shadow:var(--shadow-h)}
.whyimg img{width:100%;height:420px;object-fit:cover}
.plband{background:linear-gradient(120deg,var(--navy),#2a5885);color:#fff;border-radius:16px;padding:44px;display:grid;grid-template-columns:1.4fr auto;gap:30px;align-items:center}
.plband h2{color:#fff;font-size:28px;margin-bottom:10px}
.plband p{color:#d6e3f0}
.plsteps{display:flex;gap:14px;margin-top:20px;flex-wrap:wrap}
.plsteps span{background:rgba(255,255,255,.12);padding:7px 15px;border-radius:20px;font-size:13px}
.ctaband{background:var(--orange);color:#fff;text-align:center;padding:50px 20px}
.ctaband h2{color:#fff;font-size:30px;margin-bottom:10px}
.ctaband p{margin-bottom:24px;font-size:16px}
.ctaband .btn{background:#fff;color:var(--orange)}
.ctaband .btn:hover{background:var(--navy);color:#fff}

/* footer */
footer.site{background:var(--navy-d);color:#b9c9da;padding:52px 0 24px;font-size:14px}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px;margin-bottom:34px}
footer h4{color:#fff;font-size:15px;margin-bottom:14px}
footer a{color:#b9c9da;display:block;padding:4px 0}
footer a:hover{color:var(--orange)}
footer .flogo img{height:40px;margin-bottom:14px;background:#fff;padding:6px 10px;border-radius:7px}
footer .contact li{padding:5px 0;display:flex;gap:8px}
.fbot{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;text-align:center;font-size:12.5px;color:#8ea3ba}

/* catalog page */
.catwrap{display:grid;grid-template-columns:264px 1fr;gap:28px;padding:32px 0 50px;align-items:start}
.sidebar{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px;max-height:calc(100vh - 120px);overflow:auto}
.sidebar h4{font-size:14px;margin:6px 0 8px;display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.sidebar .grp{margin-bottom:6px}
.sidebar .grp>.gtitle{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;border-radius:7px;font-weight:600;font-size:13.5px;color:var(--navy);cursor:pointer}
.sidebar .grp>.gtitle:hover,.sidebar .grp>.gtitle.act{background:#eef3f8;color:var(--orange)}
.sidebar .sub{display:none;padding:2px 0 4px 12px}
.sidebar .grp.open .sub{display:block}
.sidebar .sub a{display:block;padding:6px 10px;font-size:12.8px;color:var(--mut);border-radius:6px}
.sidebar .sub a:hover,.sidebar .sub a.act{background:#fff0e9;color:var(--orange-d)}
.catbar{display:flex;gap:12px;align-items:center;margin-bottom:18px;flex-wrap:wrap}
.catbar .count{font-size:13.5px;color:var(--mut);margin-right:auto}
.catbar select,.catbar input{padding:9px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit}
.catbar input{min-width:200px}
.pager{display:flex;gap:6px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.pager button{min-width:38px;height:38px;border:1px solid var(--line);background:#fff;border-radius:7px;cursor:pointer;font-weight:600;color:var(--navy)}
.pager button.act{background:var(--navy);color:#fff;border-color:var(--navy)}
.pager button:disabled{opacity:.4;cursor:default}

/* modal */
.modal{position:fixed;inset:0;background:rgba(15,30,48,.6);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.mbox{background:#fff;border-radius:14px;max-width:880px;width:100%;max-height:90vh;overflow:auto;display:grid;grid-template-columns:1fr 1fr;position:relative}
.mclose{position:absolute;top:12px;right:14px;background:#f0f3f7;border:0;width:34px;height:34px;border-radius:50%;font-size:20px;cursor:pointer;z-index:3;color:var(--navy)}
.mleft{background:#fff;padding:24px}
.mleft img{width:100%;border:1px solid var(--line);border-radius:10px}
.mright{padding:30px 26px}
.mright .mod{color:var(--orange);font-weight:700;font-size:13px}
.mright h3{font-size:22px;margin:6px 0 14px}
.mtable{width:100%;font-size:13.5px;margin:14px 0}
.mtable td{padding:7px 4px;border-bottom:1px solid var(--line);vertical-align:top}
.mtable td:first-child{color:var(--mut);width:120px;font-weight:600}
.mright .btns{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}

/* forms / content pages */
.pagehero{background:linear-gradient(120deg,var(--navy),#2a5885);color:#fff;padding:48px 0;text-align:center}
.pagehero h1{color:#fff;font-size:34px;margin-bottom:6px}
.pagehero p{color:#d3e1ef}
.contactgrid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;padding:50px 0}
.formcard{background:#fff;border:1px solid var(--line);border-radius:12px;padding:30px;box-shadow:var(--shadow)}
.formrow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:13.5px;margin-bottom:6px;color:var(--navy)}
.field input,.field textarea,.field select{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:8px;font-family:inherit;font-size:14px}
.field textarea{min-height:130px;resize:vertical}
.cinfo li{padding:13px 0;border-bottom:1px solid var(--line);display:flex;gap:14px;align-items:flex-start}
.cinfo .ic{width:40px;height:40px;background:#eef3f8;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:19px;flex:0 0 40px}
.cinfo b{display:block;color:var(--navy)}
.cinfo span{font-size:14px;color:var(--mut)}
.prose{max-width:860px;margin:0 auto;padding:46px 20px}
.prose h2{margin:28px 0 12px;font-size:24px}
.prose h3{margin:22px 0 8px;font-size:18px}
.prose p{margin-bottom:14px;color:#374151}
.prose ul{margin:0 0 16px 0}
.prose ul li{padding:5px 0 5px 26px;position:relative}
.prose ul li::before{content:"";position:absolute;left:4px;top:13px;width:7px;height:7px;background:var(--orange);border-radius:50%}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:22px 0}
.tile{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px}
.tile .n{width:38px;height:38px;background:var(--navy);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:10px}
.tile h4{font-size:15.5px;margin-bottom:4px}
.tile p{font-size:13px;color:var(--mut);margin:0}
.shapetable{width:100%;border-collapse:collapse;font-size:13.5px;margin:18px 0}
.shapetable th{background:var(--navy);color:#fff;padding:10px;text-align:left}
.shapetable td{padding:9px 10px;border-bottom:1px solid var(--line)}
.shapetable tr:nth-child(even){background:#f7fafc}

@media(max-width:980px){
  .hero-in,.why-in{grid-template-columns:1fr}
  .hero-img{order:-1}
  .hero-img img{height:260px}
  .catgrid,.progrid,.shapgrid{grid-template-columns:repeat(3,1fr)}
  .fstrip .grid4{grid-template-columns:repeat(2,1fr)}
  .fgrid{grid-template-columns:1fr 1fr}
  .catwrap{grid-template-columns:1fr}
  .sidebar{position:static;max-height:none}
  .contactgrid{grid-template-columns:1fr}
  .plband{grid-template-columns:1fr}
  .mbox{grid-template-columns:1fr}
}
@media(max-width:680px){
  .mainnav,.hact .btn-n{display:none}
  .burger{display:flex}
  .catgrid,.progrid,.shapgrid{grid-template-columns:repeat(2,1fr)}
  .fstrip .grid4{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .tiles{grid-template-columns:1fr}
  .formrow{grid-template-columns:1fr}
  .hero h1{font-size:31px}
  .sec-head h2{font-size:24px}
}