:root{
  --ink:#0B1B2B;
  --ink-2:#13293F;
  --ink-3:#1C3A55;
  --paper:#F7F3EC;
  --paper-2:#EFE7DA;
  --amber:#F5A524;
  --amber-2:#FFC65C;
  --sage:#7FB69B;
  --line:rgba(11,27,43,.12);
  --line-light:rgba(247,243,236,.16);
  --max:1180px;
  --r:14px;
  --font:"Inter","Helvetica Neue",-apple-system,"Segoe UI",Roboto,"Noto Sans","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;line-height:1.65;font-size:17px;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  font-weight:700;color:#B57310;margin:0 0 14px;
}
.on-dark .eyebrow{color:var(--amber-2)}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.02em;font-weight:800}
p{margin:0 0 16px}
.lead{font-size:19px;line-height:1.6;color:rgba(11,27,43,.72);max-width:64ch}

/* ---------- header ---------- */
.topbar{
  background:var(--ink);color:rgba(247,243,236,.7);font-size:12.5px;
  letter-spacing:.14em;text-transform:uppercase;padding:9px 0;font-weight:600;
}
.topbar .wrap{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
header{position:sticky;top:0;z-index:60;background:rgba(247,243,236,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px}
.brand{display:flex;align-items:baseline;gap:9px;font-weight:900;letter-spacing:-.01em}
.brand b{font-size:22px;letter-spacing:.04em}
.brand span{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:rgba(11,27,43,.5)}
.navlinks{display:flex;gap:22px;align-items:center;font-size:15px;font-weight:600}
.navlinks a{position:relative;padding:6px 0;color:rgba(11,27,43,.78)}
.navlinks a:hover{color:var(--ink)}
.navlinks a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--amber);transition:right .25s}
.navlinks a:hover::after{right:0}
.btn{
  display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--paper);
  padding:13px 22px;border-radius:999px;font-weight:700;font-size:15px;border:0;cursor:pointer;
  transition:transform .18s,background .18s;
}
.btn:hover{transform:translateY(-1px);background:var(--ink-2)}
.btn-amber{background:var(--amber);color:var(--ink)}
.btn-amber:hover{background:var(--amber-2)}
.btn-ghost{background:transparent;color:var(--paper);border:1px solid var(--line-light)}
.btn-ghost:hover{background:rgba(247,243,236,.08)}
.menu{display:none;background:none;border:0;font-size:24px;cursor:pointer}

/* ---------- hero ---------- */
.hero{background:var(--ink);color:var(--paper);padding:80px 0 88px;position:relative;overflow:hidden}
.hero::after{
  content:"";position:absolute;right:-14%;top:-22%;width:720px;height:720px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(245,165,36,.28),transparent 62%);
}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(38px,5vw,58px);margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--amber)}
.hero p{color:rgba(247,243,236,.76);font-size:19px;max-width:54ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-art{position:relative;background:linear-gradient(150deg,rgba(255,255,255,.10),rgba(255,255,255,.02));border:1px solid var(--line-light);border-radius:24px;padding:18px}
.hero-art img{width:100%;height:auto;object-fit:contain;border-radius:14px;background:#fff}
.hero-stats{display:flex;gap:34px;margin-top:42px;flex-wrap:wrap}
.hero-stats div b{display:block;font-size:27px;letter-spacing:-.02em;color:var(--amber)}
.hero-stats div span{font-size:13px;color:rgba(247,243,236,.62);letter-spacing:.06em}

/* ---------- sections ---------- */
section{padding:80px 0}
.sec-head{max-width:780px;margin-bottom:44px}
.sec-head h2{font-size:clamp(28px,3.3vw,40px);margin-bottom:16px}
.on-dark{background:var(--ink);color:var(--paper)}
.on-dark .lead{color:rgba(247,243,236,.72)}
.on-paper-2{background:var(--paper-2)}

.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;
  transition:transform .2s,box-shadow .2s;
}
.card:hover{transform:translateY(-3px);box-shadow:0 22px 44px -28px rgba(11,27,43,.4)}
.card .num{font-size:12px;font-weight:800;letter-spacing:.16em;color:#B57310;text-transform:uppercase}
.card h3{font-size:20px;margin:10px 0 8px}
.card p{color:rgba(11,27,43,.68);font-size:15.5px;margin:0}
.on-dark .card{background:rgba(247,243,236,.05);border-color:var(--line-light)}
.on-dark .card p{color:rgba(247,243,236,.7)}

/* ---------- product cards ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.prod figure{margin:0;background:linear-gradient(160deg,#fff,#f2ece2);padding:24px;height:260px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.prod img{width:100%;height:100%;object-fit:contain}
.prod .body{padding:20px 22px 24px}
.prod h3{font-size:18px;margin-bottom:6px}
.prod p{font-size:14.5px;color:rgba(11,27,43,.62);margin:0}
.prod .tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);background:var(--paper-2);padding:4px 9px;border-radius:999px;margin-bottom:12px}

/* ---------- image + text ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split figure{margin:0;border-radius:18px;overflow:hidden;background:#fff;border:1px solid var(--line)}
.split figure img{width:100%;height:auto;object-fit:cover}
.split ul,.prose ul{margin:0 0 18px;padding-left:22px;color:rgba(11,27,43,.74)}
.split li,.prose li{margin-bottom:9px}
.prose{max-width:80ch}
.prose h2{font-size:clamp(26px,3vw,36px);margin:44px 0 18px}
.prose h3{font-size:21px;margin:32px 0 12px}
.prose p{color:rgba(11,27,43,.78)}
.prose img{border-radius:14px;margin:24px 0}
.prose blockquote{margin:26px 0;padding:18px 24px;border-left:3px solid var(--amber);background:#fff;border-radius:0 12px 12px 0;color:rgba(11,27,43,.8)}

/* ---------- band / stats ---------- */
.band{background:var(--ink-2);color:var(--paper);padding:52px 0}
.band .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;text-align:center}
.band b{display:block;font-size:34px;font-weight:900;color:var(--amber);letter-spacing:-.02em}
.band span{font-size:13.5px;color:rgba(247,243,236,.7);letter-spacing:.05em}

/* ---------- steps ---------- */
.steps{counter-reset:s;display:grid;gap:0}
.step{display:grid;grid-template-columns:64px 1fr;gap:22px;padding:24px 0;border-top:1px solid var(--line)}
.step:last-child{border-bottom:1px solid var(--line)}
.on-dark .step{border-color:var(--line-light)}
.step .n{font-size:26px;font-weight:900;color:var(--amber);letter-spacing:-.02em}
.step h3{font-size:20px;margin-bottom:6px}
.step p{margin:0;color:rgba(11,27,43,.68);font-size:15.5px}
.on-dark .step p{color:rgba(247,243,236,.7)}

/* ---------- table ---------- */
.tbl{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;background:#fff;border-radius:12px;overflow:hidden}
.tbl th,.tbl td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}
.tbl th{background:var(--paper-2);font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:rgba(11,27,43,.72)}
.tbl tr:last-child td{border-bottom:0}
.tbl td:first-child{font-weight:700}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery figure{margin:0;border-radius:12px;overflow:hidden;background:#fff;border:1px solid var(--line);height:180px}
.gallery img{width:100%;height:100%;object-fit:cover}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:700;font-size:17.5px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:#B57310;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin:14px 0 0;color:rgba(11,27,43,.7);font-size:15.5px;max-width:80ch}

/* ---------- cta ---------- */
.cta{background:var(--ink);color:var(--paper);text-align:center;padding:80px 0}
.cta h2{font-size:clamp(28px,3.4vw,42px);margin-bottom:16px}
.cta p{color:rgba(247,243,236,.72);max-width:60ch;margin:0 auto 26px}

/* ---------- form ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:rgba(11,27,43,.6);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;border:1px solid rgba(11,27,43,.2);border-radius:10px;
  font:inherit;font-size:15.5px;background:#fff;color:var(--ink);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--amber);outline-offset:1px;border-color:transparent}
.field textarea{min-height:110px;resize:vertical}
.form-note{font-size:13px;color:rgba(11,27,43,.5);margin-top:14px}
.form-msg{margin-top:16px;padding:14px 16px;border-radius:10px;font-size:15px;display:none}
.form-msg.ok{display:block;background:#E8F5EE;color:#1F6B45;border:1px solid #BFE3D0}
.form-msg.err{display:block;background:#FDECEC;color:#9B2C2C;border:1px solid #F5C6C6}

/* ---------- footer ---------- */
footer{background:var(--ink);color:rgba(247,243,236,.7);padding:64px 0 32px;font-size:15px}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
footer h4{color:var(--paper);font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
footer a{display:block;padding:5px 0;color:rgba(247,243,236,.68)}
footer a:hover{color:var(--amber)}
footer .brand b{color:var(--paper)}
footer .brand span{color:rgba(247,243,236,.45)}
.fbottom{border-top:1px solid var(--line-light);padding-top:22px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:rgba(247,243,236,.45)}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero .wrap,.split{grid-template-columns:1fr;gap:38px}
  .grid-3,.grid-4,.prod-grid,.fgrid,.gallery{grid-template-columns:1fr 1fr}
  .band .wrap{grid-template-columns:1fr 1fr}
  .navlinks{display:none}
  .menu{display:block}
}
@media (max-width:620px){
  body{font-size:16px}
  section{padding:58px 0}
  .grid-3,.grid-2,.grid-4,.prod-grid,.fgrid,.gallery{grid-template-columns:1fr}
  .hero{padding:56px 0 62px}
  .hero-stats{gap:22px}
  .form-card{padding:22px}
  .prod figure{height:220px}
}