/* =========================================================
   Coating Parts — site stylesheet
   B2B industrial supplier, inquiry-driven
   ========================================================= */
:root{
  --navy:#0f2540;
  --navy-2:#16345a;
  --steel:#2b4a6f;
  --accent:#e8762c;
  --accent-dark:#c95f1b;
  --accent-soft:#fdf1e7;
  --ink:#1b2430;
  --muted:#5b6b7f;
  --line:#e2e8f0;
  --bg:#f6f8fb;
  --white:#ffffff;
  --ok:#1c7a4a;
  --radius:10px;
  --radius-lg:16px;
  --maxw:1180px;
  --shadow:0 1px 2px rgba(15,37,64,.06), 0 8px 24px rgba(15,37,64,.06);
  --shadow-lg:0 12px 40px rgba(15,37,64,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--steel);text-decoration:none}
a:hover{color:var(--accent-dark)}
h1,h2,h3,h4{line-height:1.25;color:var(--navy);margin:0 0 .5em;font-weight:700}
h1{font-size:2.15rem}
h2{font-size:1.6rem}
h3{font-size:1.15rem}
p{margin:0 0 1em}
ul{margin:0 0 1em;padding-left:1.2em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- top bar ---------- */
.topbar{background:var(--navy);color:#c8d6e6;font-size:.82rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:38px;flex-wrap:wrap}
.topbar a{color:#c8d6e6}
.topbar a:hover{color:#fff}
.topbar .tb-right{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.topbar .dot{color:var(--accent)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 3px rgba(15,37,64,.05)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:1.2rem;color:var(--navy);letter-spacing:-.2px}
.brand .logo{width:36px;height:36px;flex:0 0 36px;border-radius:9px;background:linear-gradient(135deg,var(--navy),var(--steel));display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.05rem}
.brand small{display:block;font-size:.66rem;font-weight:600;letter-spacing:1.6px;color:var(--muted);text-transform:uppercase}
.main-nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.main-nav a{font-weight:600;font-size:.94rem;color:var(--navy);position:relative;padding:6px 0}
.main-nav a.active,.main-nav a:hover{color:var(--accent-dark)}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent);border-radius:2px}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;cursor:pointer;font-size:1rem;color:var(--navy)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.92rem;padding:11px 22px;border-radius:8px;border:1.5px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-dark)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-lg{padding:14px 30px;font-size:1rem}
.btn-block{width:100%;justify-content:center}

/* ---------- hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,#0d2038 0%,#16345a 55%,#1f4470 100%);color:#eaf1f9;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 82% 18%,rgba(232,118,44,.20),transparent 42%),
  radial-gradient(circle at 8% 90%,rgba(43,74,111,.55),transparent 46%);pointer-events:none}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center;padding:74px 22px 78px}
.hero .eyebrow{display:inline-block;background:rgba(232,118,44,.16);color:#ffb279;border:1px solid rgba(232,118,44,.35);padding:6px 14px;border-radius:999px;font-size:.78rem;font-weight:700;letter-spacing:.6px;text-transform:uppercase;margin-bottom:18px}
.hero h1{color:#fff;font-size:2.5rem;margin-bottom:.5em}
.hero h1 span{color:#ffb279}
.hero p.lead{font-size:1.06rem;color:#c2d3e6;max-width:56ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-badges{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero-badges .hb{display:flex;align-items:center;gap:9px;font-size:.86rem;color:#c2d3e6;font-weight:600}
.hero-badges .hb svg{flex:0 0 18px;color:var(--accent)}
.hero-visual{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);padding:18px;backdrop-filter:blur(3px)}
.hero-visual img{border-radius:10px;aspect-ratio:1/1;object-fit:cover;background:#fff}
.hero-visual .cap{margin-top:12px;font-size:.8rem;color:#9fb6cf;text-align:center}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin:0 auto 42px;text-align:center}
.section-head .kicker{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;color:var(--accent-dark);margin-bottom:10px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--muted);margin:0}

/* ---------- value props ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.vcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow)}
.vcard .ico{width:44px;height:44px;border-radius:10px;background:var(--accent-soft);color:var(--accent-dark);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.vcard h3{font-size:1.02rem;margin-bottom:6px}
.vcard p{font-size:.9rem;color:var(--muted);margin:0}

/* ---------- product cards ---------- */
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.2s}
.pcard:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:#cfdbe8}
.pcard .thumb{aspect-ratio:1/1;background:#eef2f7;overflow:hidden;display:block}
.pcard .thumb img{width:100%;height:100%;object-fit:cover;transition:.35s}
.pcard:hover .thumb img{transform:scale(1.04)}
.pcard .pbody{padding:20px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.pcard .cat{font-size:.72rem;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:var(--accent-dark)}
.pcard h3{font-size:1.04rem;margin:0}
.pcard h3 a{color:var(--navy)}
.pcard h3 a:hover{color:var(--accent-dark)}
.pcard .desc{font-size:.88rem;color:var(--muted);margin:0;flex:1}
.pcard .skuchip{display:inline-flex;align-items:center;gap:6px;font-size:.76rem;font-weight:700;color:var(--steel);background:#eef3f9;border-radius:6px;padding:3px 9px;width:fit-content}
.pcard .pfoot{display:flex;justify-content:space-between;align-items:center;margin-top:6px;padding-top:14px;border-top:1px solid var(--line)}
.pcard .pfoot .lnk{font-weight:700;font-size:.88rem;color:var(--accent-dark)}

/* ---------- product detail ---------- */
.breadcrumb{font-size:.83rem;color:var(--muted);padding:18px 0 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent-dark)}
.breadcrumb span{color:#aab8c8;margin:0 7px}
.pd-layout{display:grid;grid-template-columns:1fr 1fr;gap:44px;padding:26px 0 44px;align-items:start}
.gallery .main-img{background:#eef2f7;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;aspect-ratio:1/1}
.gallery .main-img img{width:100%;height:100%;object-fit:cover}
.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.thumbs button{padding:0;border:2px solid var(--line);border-radius:8px;overflow:hidden;cursor:pointer;background:#eef2f7;aspect-ratio:1/1}
.thumbs button img{width:100%;height:100%;object-fit:cover}
.thumbs button.active{border-color:var(--accent)}
.pd-info .cat{font-size:.76rem;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:var(--accent-dark)}
.pd-info h1{font-size:1.85rem;margin:8px 0 14px}
.pd-info .lead{font-size:1.02rem;color:var(--muted)}
.pd-meta{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}
.meta-pill{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:9px 14px;font-size:.84rem}
.meta-pill b{color:var(--navy)}
.meta-pill .k{color:var(--muted)}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.trust-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:26px}
.trust-row .tr{display:flex;gap:10px;align-items:flex-start;font-size:.86rem}
.trust-row .tr svg{flex:0 0 18px;color:var(--ok);margin-top:3px}
.trust-row .tr b{display:block;color:var(--navy)}

/* ---------- spec table ---------- */
.spec-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.spec-table th,.spec-table td{text-align:left;padding:12px 16px;font-size:.9rem;border-bottom:1px solid var(--line)}
.spec-table th{background:#f2f6fa;color:var(--navy);font-weight:700;width:34%}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}

/* ---------- prose ---------- */
.prose{max-width:820px}
.prose h3{margin-top:1.6em}
.prose ul li{margin-bottom:.4em}
.prose strong{color:var(--navy)}

/* ---------- feature list ---------- */
.feat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:8px}
.feat-list .fl{background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:8px;padding:16px 18px}
.feat-list .fl h3{font-size:.98rem;margin-bottom:4px}
.feat-list .fl p{font-size:.88rem;color:var(--muted);margin:0}

/* ---------- FAQ ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:17px 22px;font-weight:700;color:var(--navy);display:flex;justify-content:space-between;gap:16px;align-items:center;font-size:.97rem}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.35rem;color:var(--accent);font-weight:400;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item[open] summary{border-bottom:1px solid var(--line)}
.faq-item .ans{padding:16px 22px;color:var(--muted);font-size:.92rem}
.faq-item .ans p:last-child{margin-bottom:0}

/* ---------- inquiry / form ---------- */
.inquiry{background:linear-gradient(135deg,#0f2540,#1f4470);color:#eaf1f9;border-radius:var(--radius-lg);overflow:hidden}
.inquiry .container{padding:0}
.inquiry-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:0}
.inquiry-copy{padding:44px 40px}
.inquiry-copy h2{color:#fff;margin-bottom:14px}
.inquiry-copy p{color:#c2d3e6}
.inquiry-copy ul{list-style:none;padding:0;margin:22px 0 0}
.inquiry-copy li{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;font-size:.92rem;color:#d6e2f0}
.inquiry-copy li svg{flex:0 0 18px;color:var(--accent);margin-top:4px}
.form-card{background:#fff;padding:38px 36px;color:var(--ink)}
.form-card h3{font-size:1.2rem;margin-bottom:4px}
.form-card .sub{font-size:.88rem;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.82rem;font-weight:700;color:var(--navy);margin-bottom:6px}
.field label .req{color:var(--accent-dark)}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1.5px solid var(--line);border-radius:8px;font-size:.92rem;font-family:inherit;color:var(--ink);background:#fbfcfe;transition:.15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(232,118,44,.12)}
.field textarea{resize:vertical;min-height:100px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.form-note{font-size:.78rem;color:var(--muted);margin-top:14px}
.form-ok{display:none;background:#eaf7f0;border:1px solid #bfe4d1;color:var(--ok);border-radius:8px;padding:12px 14px;font-size:.9rem;font-weight:600;margin-bottom:16px}
.form-err{display:none;background:#fdecec;border:1px solid #f3c2c2;color:#b3261e;border-radius:8px;padding:12px 14px;font-size:.88rem;font-weight:600;margin-bottom:16px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--accent);color:#fff;text-align:center}
.cta-band .container{padding:46px 22px}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.92);max-width:640px;margin:0 auto 22px}
.cta-band .btn-ghost{background:#fff;color:var(--accent-dark);border-color:#fff}
.cta-band .btn-ghost:hover{background:#fff2e8;color:var(--accent-dark)}

/* ---------- inner page header ---------- */
.pagehead{background:linear-gradient(135deg,#0d2038,#1f4470);color:#eaf1f9}
.pagehead .container{padding:46px 22px}
.pagehead h1{color:#fff;margin-bottom:8px}
.pagehead p{color:#c2d3e6;margin:0;max-width:70ch}

/* ---------- contact page ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:38px;align-items:start}
.contact-info .ci{display:flex;gap:14px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line)}
.contact-info .ci .ico{width:40px;height:40px;flex:0 0 40px;border-radius:9px;background:var(--accent-soft);color:var(--accent-dark);display:flex;align-items:center;justify-content:center}
.contact-info .ci b{display:block;color:var(--navy);font-size:.92rem}
.contact-info .ci span{color:var(--muted);font-size:.9rem}

/* ---------- footer ---------- */
.site-footer{background:#0b1c30;color:#9fb6cf;font-size:.88rem;padding:54px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:40px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:16px}
.site-footer a{color:#9fb6cf}
.site-footer a:hover{color:#ffb279}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:9px}
.site-footer .fbrand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:1.1rem;margin-bottom:14px}
.site-footer .fbrand .logo{width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));display:flex;align-items:center;justify-content:center;color:#fff}
.site-footer .fline{margin-bottom:9px;display:flex;gap:9px;align-items:flex-start}
.site-footer .fline svg{flex:0 0 16px;color:var(--accent);margin-top:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8rem;color:#7d93ab}
.disclaimer{font-size:.76rem;color:#7d93ab;background:rgba(255,255,255,.04);border-radius:8px;padding:12px 14px;margin-top:14px;line-height:1.6}

/* ---------- whatsapp float ---------- */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:54px;height:54px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(37,211,102,.4);transition:.2s}
.wa-float:hover{transform:scale(1.07);color:#fff}

/* ---------- helpers ---------- */
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.center{text-align:center}
.muted{color:var(--muted)}
.sec-block{padding:56px 0}
.bg-white{background:#fff}
.divider{height:1px;background:var(--line);border:0;margin:0}
.note-box{background:var(--accent-soft);border:1px solid #f6d9c0;border-radius:10px;padding:16px 20px;font-size:.9rem;color:#8a4a17}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero .container{grid-template-columns:1fr;gap:30px;padding:52px 22px}
  .hero h1{font-size:1.95rem}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .pd-layout{grid-template-columns:1fr;gap:30px}
  .inquiry-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px 22px}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:4px}
  .main-nav a{display:block;padding:10px 0}
  .nav-toggle{display:block}
  .header-cta .btn{display:none}
}
@media(max-width:620px){
  h1{font-size:1.65rem}
  .grid-4{grid-template-columns:1fr}
  .feat-list{grid-template-columns:1fr}
  .trust-row{grid-template-columns:1fr}
  .thumbs{grid-template-columns:repeat(4,1fr)}
  .field-row{grid-template-columns:1fr}
  .form-card{padding:28px 22px}
  .inquiry-copy{padding:32px 22px}
  .footer-grid{grid-template-columns:1fr}
  .topbar .tb-right{gap:10px}
}
@media print{
  .site-header,.topbar,.cta-band,.wa-float,.site-footer,.pd-actions,.thumbs{display:none!important}
}