*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0;text-decoration: none; }
    :root {
      --red: #C8001E;
      --red-dark: #9E0018;
      --red-light: #ff1a35;
      --navy: #0A1560;
      --navy-deep: #060D40;
    }
    html { scroll-behavior: smooth; }
body {
  font-family: 'Vazirmatn', sans-serif;
  background: var(--navy-deep);
  color: #fff;
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}
    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 50% at 20% 10%, rgba(200,0,30,.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(22,40,168,.25) 0%, transparent 60%);
      pointer-events: none;
      z-index: 0;
    }

    /* ── NAVBAR ── */
    nav {
      position: sticky;
      top: 0;
      z-index: 200;
      background: var(--red);
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 48px;
      box-shadow: 0 2px 24px rgba(200,0,30,.35);
    }
    .nav-logo {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
      white-space: nowrap;
    }
    .nav-logo-dot { width: 8px; height: 8px; background: rgba(255,255,255,.6); border-radius: 50%; }
    .nav-links { display: flex; gap: 4px; list-style: none; align-items: center; }

    /* desktop link */
    .nav-links > li { position: relative; }
    .nav-links > li > a {
      display: flex;
      align-items: center;
      gap: 5px;
      text-decoration: none;
      font-size: 14px;
      color: rgba(255,255,255,.78);
      padding: 0 12px;
      height: 60px;
      transition: color .18s, background .18s;
    }
    .nav-links > li > a:hover,
    .nav-links > li > a.active { color: #fff; background: rgba(0,0,0,.12); }
    .nav-links > li > a .chevron {
      width: 12px; height: 12px;
      fill: none;
      stroke: currentColor;
      stroke-width: 2.2;
      stroke-linecap: round;
      stroke-linejoin: round;
      transition: transform .2s;
    }
    .nav-links > li:hover > a .chevron { transform: rotate(180deg); }

    /* dropdown */
    .dropdown {
      display: none;
      position: absolute;
      top: 60px;
      right: 0;
      min-width: 200px;
      background: var(--red-dark);
      border-radius: 0 0 12px 12px;
      box-shadow: 0 16px 40px rgba(0,0,0,.4);
      overflow: hidden;
      z-index: 300;
    }
    .nav-links > li:hover .dropdown { display: block; }
    .dropdown a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 13px 18px;
      font-size: 13px;
      color: rgba(255,255,255,.82);
      text-decoration: none;
      border-bottom: 1px solid rgba(255,255,255,.07);
      transition: background .15s, color .15s;
    }
    .dropdown a:last-child { border-bottom: none; }
    .dropdown a:hover { background: rgba(255,255,255,.1); color: #fff; }
    .dropdown a .d-dot {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--red-light);
      flex-shrink: 0;
    }

    /* ── HAMBURGER ── */
    .hamburger {
      display: none;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 5px;
      width: 40px; height: 40px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.25);
      border-radius: 8px;
      cursor: pointer;
    }
    .hamburger span {
      display: block;
      width: 20px; height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: transform .3s, opacity .3s;
    }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* ── MOBILE DRAWER ── */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 60px; right: 0; left: 0;
      z-index: 190;
      background: var(--red-dark);
      padding-bottom: 8px;
      box-shadow: 0 12px 32px rgba(0,0,0,.4);
      transform: translateY(-8px);
      opacity: 0;
      transition: transform .25s ease, opacity .25s ease;
      pointer-events: none;
    }
    .mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: all; }
    .mobile-menu ul { list-style: none; direction: rtl; }
    .mobile-menu ul li a {
      display: block;
      padding: 14px 28px;
      font-size: 15px;
      color: rgba(255,255,255,.85);
      text-decoration: none;
      border-bottom: 1px solid rgba(255,255,255,.08);
      transition: background .15s, color .15s;
    }
    .mobile-menu ul li:last-child a { border-bottom: none; }
    .mobile-menu ul li a:hover { background: rgba(255,255,255,.08); color: #fff; }
    .mobile-menu ul li a.active { color: #fff; font-weight: 500; }
    /* sub items in mobile */
    .mobile-sub a {
      padding-right: 44px !important;
      font-size: 13px !important;
      color: rgba(255,255,255,.65) !important;
      background: rgba(0,0,0,.12);
    }
    .mobile-sub a:hover { color: #fff !important; }
    .mobile-parent-label {
      padding: 14px 28px;
      font-size: 15px;
      color: #fff;
      font-weight: 500;
      border-bottom: 1px solid rgba(255,255,255,.08);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
    }
    .mobile-parent-label svg {
      width: 14px; height: 14px;
      fill: none; stroke: rgba(255,255,255,.6);
      stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round;
      transition: transform .25s;
    }
    .mobile-parent-label.open svg { transform: rotate(180deg); }
    .mobile-sub { display: none; }
    .mobile-sub.open { display: block; }

    /* ── MAIN ── */
main {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px 80px;
  flex: 1 0 auto;
  width: 100%;
}

    /* ── HERO ── */
    .hero { padding: 64px 0 48px; animation: fadeUp .6s ease both; }
    .hero-pill {
      display: inline-flex; align-items: center; gap: 8px;
      background: rgba(200,0,30,.18); border: 1px solid rgba(200,0,30,.45);
      border-radius: 24px; padding: 6px 16px; margin-bottom: 20px;
    }
    .hero-dot {
      width: 7px; height: 7px; border-radius: 50%;
      background: var(--red-light); box-shadow: 0 0 8px var(--red-light);
      animation: pulse 2s infinite;
    }
    .hero-pill span { font-size: 12px; color: rgba(255,255,255,.82); letter-spacing: .8px; }
    .hero h1 { font-size: clamp(26px,4vw,44px); font-weight: 700; line-height: 1.25; color: #fff; margin-bottom: 14px; }
    .hero h1 em { font-style: normal; color: var(--red-light); }
    .hero p { font-size: 15px; color: rgba(255,255,255,.5); max-width: 420px; line-height: 1.7; }

    /* ── DIVIDER ── */
    .divider { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
    .divider-line { flex: 1; height: 1px; background: rgba(255,255,255,.1); }
    .divider-text { font-size: 11px; color: rgba(255,255,255,.35); letter-spacing: 2px; text-transform: uppercase; white-space: nowrap; }

    /* ── BRAND CARDS ── */
    .brands-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-bottom: 56px; }
    .brand-card {
      background: #fff; border-radius: 20px; overflow: hidden;
      cursor: pointer; text-decoration: none; display: block;
      transition: transform .22s cubic-bezier(.22,1,.36,1);
      animation: fadeUp .6s ease both;
    }
    .brand-card:nth-child(1) { animation-delay: .1s; }
    .brand-card:nth-child(2) { animation-delay: .2s; }
    .brand-card:nth-child(3) { animation-delay: .3s; }
    .brand-card:hover { transform: translateY(-8px); }
    .card-img-wrap { width: 100%; height: 180px; overflow: hidden; position: relative; }
    .card-img-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
    .brand-card:hover .card-img-wrap img { transform: scale(1.06); }
    .card-img-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,21,96,.45) 0%, transparent 60%); }
    .card-body { padding: 20px 18px 18px; text-align: center;}
    .card-tag { display: inline-block; font-size: 10px; font-weight: 500; letter-spacing: 1.4px; text-transform: uppercase; padding: 4px 12px; border-radius: 20px; margin-bottom: 12px; }
    .tag-red   { background: #fff0f0; color: var(--red); }
    .tag-blue  { background: #eef2ff; color: var(--navy); }
    .tag-slate { background: #f4f5f7; color: #3d4a6b; }
    .card-name { font-size: 17px; font-weight: 700; color: #0d1033; margin-bottom: 6px; letter-spacing: .4px; }
    .card-desc { visibility: hidden ;}
    .card-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #f0f1f4; padding-top: 14px; }
    .card-more { font-size: 13px; font-weight: 500; color: var(--red); }
    .card-arrow { width: 32px; height: 32px; border-radius: 50%; background: var(--navy); display: flex; align-items: center; justify-content: center; transition: background .18s; }
    .brand-card:hover .card-arrow { background: var(--red); }
    .card-arrow svg { width: 14px; height: 14px; fill: none; stroke: #fff; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

    /* ── STATS ── */
    .stat-item { padding: 24px 20px; text-align: center; border-left: 1px solid rgba(255,255,255,.09); }
    .stat-item:last-child { border-left: none; }
    .stat-num { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 4px; }
    .stat-num.accent { color: var(--red-light); }
    .stat-label { font-size: 12px; color: rgba(255,255,255,.42); }


    /* ── FOOTER ── */
    footer {position: static;margin-bottom: 0; width: 100%; z-index: 1; background: rgba(0,0,0,.35); border-top: 1px solid rgba(255,255,255,.07); padding: 22px 48px; justify-content: space-between; direction: rtl;}
    .footer-copy { font-size: 12px; color: rgba(255,255,255,.35); }
    @keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
    @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

    /* ── RESPONSIVE ── */
    @media (max-width: 900px) {
      nav { padding: 0 24px; }
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .mobile-menu { display: block; }
      main { padding: 0 24px 60px; }
      .brands-grid { grid-template-columns: 1fr 1fr; }
      .why-grid { grid-template-columns: 1fr 1fr; }
      footer { padding: 18px 24px; }
    }
    @media (max-width: 600px) {
      nav { padding: 0 16px; }
      main { padding: 0 16px 48px; }
      .hero { padding: 40px 0 32px; }
      .brands-grid { grid-template-columns: 1fr; }
      .stat-item { border-left: none; border-bottom: 1px solid rgba(255,255,255,.09); }
      .stat-item:last-child { border-bottom: none; }
      .why-grid { grid-template-columns: 1fr 1fr; }
      footer { flex-direction: column; gap: 12px; text-align: center; }
    }
    @media (max-width: 400px) { .why-grid { grid-template-columns: 1fr; } }
    :root{
      --pvc-navy-1:#1a0c3d;
      --pvc-navy-2:#060d40;
      --pvc-navy-3:#03082a;
      --pvc-navy-btn:#0a1560;
      --pvc-red:#c8001e;
      --pvc-red-dark:#af001a;
      --pvc-red-bright:#ff1a35;
      --pvc-divider:#1f2553;
      --pvc-muted:#5b6082;
      --pvc-white:#ffffff;
      --pvc-tag-slate-bg:#f4f5f7; --pvc-tag-slate-text:#3d4a6b;
      --pvc-tag-blue-bg:#e1e6f7;  --pvc-tag-blue-text:#0a1560;
      --pvc-tag-red-bg:#fff0f0;   --pvc-tag-red-text:#d12841;
    }

    #productView{
      font-family:'Vazirmatn', sans-serif;
      direction:rtl;
      padding:0 24px 90px;
    }
    .pv-container{
      max-width:1104px;
      margin:0 auto;
    }

    .pv-back{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:28px;
      padding:10px 18px;
      background:var(--pvc-navy-btn);
      color:var(--pvc-white);
      border:1px solid rgba(255,255,255,.12);
      border-radius:999px;
      font-family:inherit;
      font-size:14px;
      font-weight:500;
      cursor:pointer;
      transition:background .2s ease, transform .2s ease;
    }
    .pv-back:hover{ background:var(--pvc-red); transform:translateX(-3px); }
    .pv-back:focus-visible{ outline:2px solid var(--pvc-red-bright); outline-offset:3px; }
    .pv-back svg{ width:16px; height:16px; fill:none; stroke:currentColor; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round; transform:scaleX(-1); }

    /* بنر سربرگ برند */
    .pv-header{
      margin-top:28px;
      border-radius:22px;
      overflow:hidden;
      position:relative;
      display:flex;
      align-items:center;
      gap:28px;
      padding:34px 36px;
      min-height:148px;
      box-shadow:0 18px 40px -18px rgba(0,0,0,.55);
    }
    .pv-header::after{
      content:"";
      position:absolute; inset:0;
      background:radial-gradient(circle at 80% 30%, rgba(255,255,255,.22), transparent 60%);
      pointer-events:none;
    }
    .pv-header.accent-empiral{ background:linear-gradient(135deg,#4a0008,#8a0010 55%,#c8001e); }
    .pv-header.accent-reindeer{ background:linear-gradient(135deg,#ff2a2a,#c8001e); }
    .pv-header.accent-chemgard{ background:linear-gradient(160deg,#ffffff,#c7cee6); }

    .pv-header-logo{
      flex:0 0 auto;
      width:92px; height:92px;
      border-radius:18px;
      background:rgba(255,255,255,.92);
      display:flex; align-items:center; justify-content:center;
      box-shadow:0 10px 24px -8px rgba(0,0,0,.5);
      overflow:hidden;
      position:relative; z-index:1;
    }
    .pv-header-logo img{ width:100%; height:100%; object-fit:cover; }

    .pv-header-text{ position:relative; z-index:1; }
    .pv-header-eyebrow{
      display:inline-block;
      font-size:13px;
      font-weight:500;
      padding:4px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.85);
      margin-bottom:10px;
    }
    .accent-chemgard .pv-header-eyebrow{ color:var(--pvc-tag-blue-text); background:#ffffff; }
    .accent-empiral .pv-header-eyebrow,
    .accent-reindeer .pv-header-eyebrow{ color:var(--pvc-red-dark); }

    .pv-header-title{
      font-size:28px;
      font-weight:700;
      margin:0 0 6px;
      color:var(--pvc-white);
    }
    .accent-chemgard .pv-header-title{ color:#1a1f3d; }

    .pv-header-desc{
      font-size:14.5px;
      line-height:1.9;
      max-width:560px;
      color:rgba(255,255,255,.88);
      margin:0;
    }
    .accent-chemgard .pv-header-desc{ color:#3d4566; }

    .pv-catalog-link{
      position:relative; z-index:1;
      margin-right:auto;
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:10px 16px;
      border-radius:999px;
      font-size:13.5px;
      font-weight:500;
      background:rgba(255,255,255,.16);
      color:var(--pvc-white);
      border:1px solid rgba(255,255,255,.4);
      text-decoration:none;
      white-space:nowrap;
      transition:background .2s ease;
    }
    .pv-catalog-link:hover{ background:rgba(255,255,255,.3); }
    .accent-chemgard .pv-catalog-link{ background:rgba(10,21,96,.08); color:#1a1f3d; border-color:rgba(10,21,96,.25); }
    .accent-chemgard .pv-catalog-link:hover{ background:rgba(10,21,96,.15); }

    .pv-grid{
      margin-top:34px;
      display:grid;
      grid-template-columns:repeat(auto-fit, minmax(230px, 1fr));
      gap:22px;
    }

    .pv-card{
      background:var(--pvc-white);
      border-radius:18px;
      overflow:hidden;
      box-shadow:0 14px 30px -16px rgba(0,0,0,.5);
      opacity:0;
      transform:translateY(14px);
    }
    #productView.pv-entered .pv-card{
      animation:pvFadeUp .5s ease forwards;
    }
    .pv-card:nth-child(1){ animation-delay:.05s; }
    .pv-card:nth-child(2){ animation-delay:.12s; }
    .pv-card:nth-child(3){ animation-delay:.19s; }
    .pv-card:nth-child(4){ animation-delay:.26s; }
    .pv-card:nth-child(5){ animation-delay:.33s; }
    .pv-card:nth-child(6){ animation-delay:.4s; }

    .pv-card-media{
      height:128px;
      display:flex;
      align-items:center;
      justify-content:center;
      position:relative;
    }
    .pv-card-media svg{ width:46px; height:46px; stroke:#fff; fill:none; stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round; position:relative; z-index:1; }
    .pv-card-media::after{
      content:"";
      position:absolute; inset:0;
      background:radial-gradient(circle at 70% 25%, rgba(255,255,255,.35), transparent 60%);
    }
    .media-empiral{ background:linear-gradient(135deg,#5c0008,#c8001e); }
    .media-reindeer{ background:linear-gradient(135deg,#ff2a2a,#af001a); }
    .media-chemgard{ background:linear-gradient(135deg,#0a1560,#3b56d6); }

    .pv-card-body{ padding:16px 18px 18px; }
    .pv-card-tag{
      display:inline-block;
      font-size:11.5px;
      font-weight:500;
      padding:3px 10px;
      border-radius:999px;
      margin-bottom:10px;
    }
    .tag-empiral{ background:var(--pvc-tag-red-bg); color:var(--pvc-tag-red-text); }
    .tag-reindeer{ background:var(--pvc-tag-slate-bg); color:var(--pvc-tag-slate-text); }
    .tag-chemgard{ background:var(--pvc-tag-blue-bg); color:var(--pvc-tag-blue-text); }

    .pv-card-name{ font-size:15.5px; font-weight:700; color:#1a1f3d; margin:0 0 6px; }
    .pv-card-desc{ font-size:13px; line-height:1.8; color:#6b7088; margin:0 0 14px; min-height:42px; }

    .pv-card-footer{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding-top:12px;
      border-top:1px solid #f0f1f5;
      background:none;
      border-left:none; border-right:none; border-bottom:none;
      width:100%;
      cursor:pointer;
      font-family:inherit;
    }
    .pv-card-more{ font-size:13px; font-weight:500; color:#1a1f3d; }
    .pv-card-arrow{
      width:30px; height:30px;
      border-radius:50%;
      background:var(--pvc-navy-btn);
      display:flex; align-items:center; justify-content:center;
      transition:background .2s ease;
    }
    .pv-card-footer:hover .pv-card-arrow{ background:var(--pvc-red); }
    .pv-card-arrow svg{ width:14px; height:14px; stroke:#fff; fill:none; stroke-width:2.4; }
    .pv-card-footer:focus-visible{ outline:2px solid var(--pvc-red-bright); outline-offset:2px; }

    .pv-disclaimer{
      margin-top:26px;
      font-size:12.5px;
      color:var(--pvc-muted);
      text-align:center;
    }

    .pv-toast{
      position:fixed; bottom:26px; left:50%;
      transform:translate(-50%, 20px);
      background:var(--pvc-navy-btn); color:#fff;
      padding:12px 22px; border-radius:999px;
      font-family:'Vazirmatn', sans-serif; font-size:13.5px;
      box-shadow:0 14px 30px -10px rgba(0,0,0,.5);
      opacity:0; transition:opacity .25s ease, transform .25s ease;
      z-index:9999; pointer-events:none;
    }
    .pv-toast.show{ opacity:1; transform:translate(-50%,0);*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --red: #C8001E;
      --red-dark: #9E0018;
      --red-light: #ff1a35;
      --navy: #0A1560;
      --navy-deep: #060D40;
    }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Vazirmatn', sans-serif;
      background: var(--navy-deep);
      color: #fff;
      min-height: 100vh;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
    }
    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 50% at 20% 10%, rgba(200,0,30,.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(22,40,168,.25) 0%, transparent 60%);
      pointer-events: none;
      z-index: 0;
    }

    /* ── NAVBAR ── */
    nav {
      position: sticky;
      top: 0;
      z-index: 200;
      background: var(--red);
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 48px;
      box-shadow: 0 2px 24px rgba(200,0,30,.35);
    }
    .nav-logo {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
      white-space: nowrap;
    }
    .nav-logo-dot { width: 8px; height: 8px; background: rgba(255,255,255,.6); border-radius: 50%; }
    .nav-links { display: flex; gap: 4px; list-style: none; align-items: center; }

    /* desktop link */
    .nav-links > li { position: relative; }
    .nav-links > li > a {
      display: flex;
      align-items: center;
      gap: 5px;
      text-decoration: none;
      font-size: 14px;
      color: rgba(255,255,255,.78);
      padding: 0 12px;
      height: 60px;
      transition: color .18s, background .18s;
    }
    .nav-links > li > a:hover,
    .nav-links > li > a.active { color: #fff; background: rgba(0,0,0,.12); }
    .nav-links > li > a .chevron {
      width: 12px; height: 12px;
      fill: none;
      stroke: currentColor;
      stroke-width: 2.2;
      stroke-linecap: round;
      stroke-linejoin: round;
      transition: transform .2s;
    }
    .nav-links > li:hover > a .chevron { transform: rotate(180deg); }

    /* dropdown */
    .dropdown {
      display: none;
      position: absolute;
      top: 60px;
      right: 0;
      min-width: 200px;
      background: var(--red-dark);
      border-radius: 0 0 12px 12px;
      box-shadow: 0 16px 40px rgba(0,0,0,.4);
      overflow: hidden;
      z-index: 300;
    }
    .nav-links > li:hover .dropdown { display: block; }
    .dropdown a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 13px 18px;
      font-size: 13px;
      color: rgba(255,255,255,.82);
      text-decoration: none;
      border-bottom: 1px solid rgba(255,255,255,.07);
      transition: background .15s, color .15s;
    }
    .dropdown a:last-child { border-bottom: none; }
    .dropdown a:hover { background: rgba(255,255,255,.1); color: #fff; }
    .dropdown a .d-dot {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--red-light);
      flex-shrink: 0;
    }

    /* ── HAMBURGER ── */
    .hamburger {
      display: none;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 5px;
      width: 40px; height: 40px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.25);
      border-radius: 8px;
      cursor: pointer;
    }
    .hamburger span {
      display: block;
      width: 20px; height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: transform .3s, opacity .3s;
    }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* ── MOBILE DRAWER ── */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 60px; right: 0; left: 0;
      z-index: 190;
      background: var(--red-dark);
      padding-bottom: 8px;
      box-shadow: 0 12px 32px rgba(0,0,0,.4);
      transform: translateY(-8px);
      opacity: 0;
      transition: transform .25s ease, opacity .25s ease;
      pointer-events: none;
    }
    .mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: all; }
    .mobile-menu ul { list-style: none; direction: rtl; }
    .mobile-menu ul li a {
      display: block;
      padding: 14px 28px;
      font-size: 15px;
      color: rgba(255,255,255,.85);
      text-decoration: none;
      border-bottom: 1px solid rgba(255,255,255,.08);
      transition: background .15s, color .15s;
    }
    .mobile-menu ul li:last-child a { border-bottom: none; }
    .mobile-menu ul li a:hover { background: rgba(255,255,255,.08); color: #fff; }
    .mobile-menu ul li a.active { color: #fff; font-weight: 500; }
    /* sub items in mobile */
    .mobile-sub a {
      padding-right: 44px !important;
      font-size: 13px !important;
      color: rgba(255,255,255,.65) !important;
      background: rgba(0,0,0,.12);
    }
    .mobile-sub a:hover { color: #fff !important; }
    .mobile-parent-label {
      padding: 14px 28px;
      font-size: 15px;
      color: #fff;
      font-weight: 500;
      border-bottom: 1px solid rgba(255,255,255,.08);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
    }
    .mobile-parent-label svg {
      width: 14px; height: 14px;
      fill: none; stroke: rgba(255,255,255,.6);
      stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round;
      transition: transform .25s;
    }
    .mobile-parent-label.open svg { transform: rotate(180deg); }
    .mobile-sub { display: none; }
    .mobile-sub.open { display: block; }

    /* ── MAIN ── */
    main { position: relative; z-index: 1; max-width: 1200px; margin: 0 auto; padding: 0 48px 80px; flex: 1 0 auto; width: 100%; }

    /* ── HERO ── */
    .hero { padding: 64px 0 48px; animation: fadeUp .6s ease both; }
    .hero-pill {
      display: inline-flex; align-items: center; gap: 8px;
      background: rgba(200,0,30,.18); border: 1px solid rgba(200,0,30,.45);
      border-radius: 24px; padding: 6px 16px; margin-bottom: 20px;
    }
    .hero-dot {
      width: 7px; height: 7px; border-radius: 50%;
      background: var(--red-light); box-shadow: 0 0 8px var(--red-light);
      animation: pulse 2s infinite;
    }
    .hero-pill span { font-size: 12px; color: rgba(255,255,255,.82); letter-spacing: .8px; }
    .hero h1 { font-size: clamp(26px,4vw,44px); font-weight: 700; line-height: 1.25; color: #fff; margin-bottom: 14px; }
    .hero h1 em { font-style: normal; color: var(--red-light); }
    .hero p { font-size: 15px; color: rgba(255,255,255,.5); max-width: 420px; line-height: 1.7; }

    /* ── DIVIDER ── */
    .divider { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
    .divider-line { flex: 1; height: 1px; background: rgba(255,255,255,.1); }
    .divider-text { font-size: 11px; color: rgba(255,255,255,.35); letter-spacing: 2px; text-transform: uppercase; white-space: nowrap; }

    /* ── BRAND CARDS ── */
    .brands-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-bottom: 56px; }
    .brand-card {
      background: #fff; border-radius: 20px; overflow: hidden;
      cursor: pointer; text-decoration: none; display: block;
      transition: transform .22s cubic-bezier(.22,1,.36,1);
      animation: fadeUp .6s ease both;
    }
    .brand-card:nth-child(1) { animation-delay: .1s; }
    .brand-card:nth-child(2) { animation-delay: .2s; }
    .brand-card:nth-child(3) { animation-delay: .3s; }
    .brand-card:hover { transform: translateY(-8px); }
    .card-img-wrap { width: 100%; height: 180px; overflow: hidden; position: relative; }
    .card-img-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
    .brand-card:hover .card-img-wrap img { transform: scale(1.06); }
    .card-img-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,21,96,.45) 0%, transparent 60%); }
    .card-body { padding: 20px 18px 18px; }
    .card-tag { display: inline-block; font-size: 10px; font-weight: 500; letter-spacing: 1.4px; text-transform: uppercase; padding: 4px 12px; border-radius: 20px; margin-bottom: 12px; }
    .tag-red   { background: #fff0f0; color: var(--red); }
    .tag-blue  { background: #eef2ff; color: var(--navy); }
    .tag-slate { background: #f4f5f7; color: #3d4a6b; }
    .card-name { font-size: 17px; font-weight: 700; color: #0d1033; margin-bottom: 6px; letter-spacing: .4px; }
    .card-desc { visibility: hidden ;}
    .card-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #f0f1f4; padding-top: 14px; }
    .card-more { font-size: 13px; font-weight: 500; color: var(--red); }
    .card-arrow { width: 32px; height: 32px; border-radius: 50%; background: var(--navy); display: flex; align-items: center; justify-content: center; transition: background .18s; }
    .brand-card:hover .card-arrow { background: var(--red); }
    .card-arrow svg { width: 14px; height: 14px; fill: none; stroke: #fff; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

    /* ── STATS ── */
    .stat-item { padding: 24px 20px; text-align: center; border-left: 1px solid rgba(255,255,255,.09); }
    .stat-item:last-child { border-left: none; }
    .stat-num { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 4px; }
    .stat-num.accent { color: var(--red-light); }
    .stat-label { font-size: 12px; color: rgba(255,255,255,.42); }


    /* ── FOOTER ── */
    footer {position: static;margin-bottom: 0; width: 100%; z-index: 1; background: rgba(0,0,0,.35); border-top: 1px solid rgba(255,255,255,.07); padding: 22px 48px; justify-content: space-between; direction: rtl;}
    .footer-copy {text-align: center; font-size: 12px; color: rgba(255,255,255,.35); }
    @keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
    @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

    /* ── RESPONSIVE ── */
    @media (max-width: 900px) {
      nav { padding: 0 24px; }
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .mobile-menu { display: block; }
      main { padding: 0 24px 60px; }
      .brands-grid { grid-template-columns: 1fr 1fr; }
      .why-grid { grid-template-columns: 1fr 1fr; }
      footer { padding: 18px 24px; }
    }
    @media (max-width: 600px) {
      nav { padding: 0 16px; }
      main { padding: 0 16px 48px; }
      .hero { padding: 40px 0 32px; }
      .brands-grid { grid-template-columns: 1fr; }
      .stat-item { border-left: none; border-bottom: 1px solid rgba(255,255,255,.09); }
      .stat-item:last-child { border-bottom: none; }
      .why-grid { grid-template-columns: 1fr 1fr; }
      footer { flex-direction: column; gap: 12px; text-align: center; }
    }
    @media (max-width: 400px) { .why-grid { grid-template-columns: 1fr; } }



    :root{
      --pvc-navy-1:#1a0c3d;
      --pvc-navy-2:#060d40;
      --pvc-navy-3:#03082a;
      --pvc-navy-btn:#0a1560;
      --pvc-red:#c8001e;
      --pvc-red-dark:#af001a;
      --pvc-red-bright:#ff1a35;
      --pvc-divider:#1f2553;
      --pvc-muted:#5b6082;
      --pvc-white:#ffffff;
      --pvc-tag-slate-bg:#f4f5f7; --pvc-tag-slate-text:#3d4a6b;
      --pvc-tag-blue-bg:#e1e6f7;  --pvc-tag-blue-text:#0a1560;
      --pvc-tag-red-bg:#fff0f0;   --pvc-tag-red-text:#d12841;
    }

    #productView{
      font-family:'Vazirmatn', sans-serif;
      direction:rtl;
      padding:0 24px 90px;
    }
    .pv-container{
      max-width:1104px;
      margin:0 auto;
    }


    .pv-back{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:28px;
      padding:10px 18px;
      background:var(--pvc-navy-btn);
      color:var(--pvc-white);
      border:1px solid rgba(255,255,255,.12);
      border-radius:999px;
      font-family:inherit;
      font-size:14px;
      font-weight:500;
      cursor:pointer;
      transition:background .2s ease, transform .2s ease;
    }
    .pv-back:hover{ background:var(--pvc-red); transform:translateX(-3px); }
    .pv-back:focus-visible{ outline:2px solid var(--pvc-red-bright); outline-offset:3px; }
    .pv-back svg{ width:16px; height:16px; fill:none; stroke:currentColor; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round; transform:scaleX(-1); }


    .pv-header{
      margin-top:28px;
      border-radius:22px;
      overflow:hidden;
      position:relative;
      display:flex;
      align-items:center;
      gap:28px;
      padding:34px 36px;
      min-height:148px;
      box-shadow:0 18px 40px -18px rgba(0,0,0,.55);
    }
    .pv-header::after{
      content:"";
      position:absolute; inset:0;
      background:radial-gradient(circle at 80% 30%, rgba(255,255,255,.22), transparent 60%);
      pointer-events:none;
    }
    .pv-header.accent-empiral{ background:linear-gradient(135deg,#4a0008,#8a0010 55%,#c8001e); }
    .pv-header.accent-reindeer{ background:linear-gradient(135deg,#ff2a2a,#c8001e); }
    .pv-header.accent-chemgard{ background:linear-gradient(160deg,#ffffff,#c7cee6); }

    .pv-header-logo{
      flex:0 0 auto;
      width:92px; height:92px;
      border-radius:18px;
      background:rgba(255,255,255,.92);
      display:flex; align-items:center; justify-content:center;
      box-shadow:0 10px 24px -8px rgba(0,0,0,.5);
      overflow:hidden;
      position:relative; z-index:1;
    }
    .pv-header-logo img{ width:100%; height:100%; object-fit:cover; }

    .pv-header-text{ position:relative; z-index:1; }
    .pv-header-eyebrow{
      display:inline-block;
      font-size:13px;
      font-weight:500;
      padding:4px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.85);
      margin-bottom:10px;
    }
    .accent-chemgard .pv-header-eyebrow{ color:var(--pvc-tag-blue-text); background:#ffffff; }
    .accent-empiral .pv-header-eyebrow,
    .accent-reindeer .pv-header-eyebrow{ color:var(--pvc-red-dark); }

    .pv-header-title{
      font-size:28px;
      font-weight:700;
      margin:0 0 6px;
      color:var(--pvc-white);
    }
    .accent-chemgard .pv-header-title{ color:#1a1f3d; }

    .pv-header-desc{
      font-size:14.5px;
      line-height:1.9;
      max-width:560px;
      color:rgba(255,255,255,.88);
      margin:0;
    }
    .accent-chemgard .pv-header-desc{ color:#3d4566; }

    .pv-catalog-link{
      position:relative; z-index:1;
      margin-right:auto;
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:10px 16px;
      border-radius:999px;
      font-size:13.5px;
      font-weight:500;
      background:rgba(255,255,255,.16);
      color:var(--pvc-white);
      border:1px solid rgba(255,255,255,.4);
      text-decoration:none;
      white-space:nowrap;
      transition:background .2s ease;
    }
    .pv-catalog-link:hover{ background:rgba(255,255,255,.3); }
    .accent-chemgard .pv-catalog-link{ background:rgba(10,21,96,.08); color:#1a1f3d; border-color:rgba(10,21,96,.25); }
    .accent-chemgard .pv-catalog-link:hover{ background:rgba(10,21,96,.15); }


    .pv-grid{
      margin-top:34px;
      display:grid;
      grid-template-columns:repeat(auto-fit, minmax(230px, 1fr));
      gap:22px;
    }

    .pv-card{
      display:block;
      background:var(--pvc-white);
      border-radius:18px;
      overflow:hidden;
      box-shadow:0 14px 30px -16px rgba(0,0,0,.5);
      opacity:0;
      transform:translateY(14px);
      text-decoration:none;
      color:inherit;
    }
    .pv-card:focus-visible{ outline:2px solid var(--pvc-red-bright); outline-offset:3px; }
    #productView.pv-entered .pv-card{
      animation:pvFadeUp .5s ease forwards;
    }
    .pv-card:nth-child(1){ animation-delay:.05s; }
    .pv-card:nth-child(2){ animation-delay:.12s; }
    .pv-card:nth-child(3){ animation-delay:.19s; }
    .pv-card:nth-child(4){ animation-delay:.26s; }
    .pv-card:nth-child(5){ animation-delay:.33s; }
    .pv-card:nth-child(6){ animation-delay:.4s; }

    .pv-card-media{
      height:128px;
      display:flex;
      align-items:center;
      justify-content:center;
      position:relative;
    }
    .pv-card-media svg{ width:46px; height:46px; stroke:#fff; fill:none; stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round; position:relative; z-index:1; }
    .pv-card-media::after{
      content:"";
      position:absolute; inset:0;
      background:radial-gradient(circle at 70% 25%, rgba(255,255,255,.35), transparent 60%);
    }
    .media-empiral{ background:linear-gradient(135deg,#5c0008,#c8001e); }
    .media-reindeer{ background:linear-gradient(135deg,#ff2a2a,#af001a); }
    .media-chemgard{ background:linear-gradient(135deg,#0a1560,#3b56d6); }

    .pv-card-body{ padding:16px 18px 18px; }
    .pv-card-tag{
      display:inline-block;
      font-size:11.5px;
      font-weight:500;
      padding:3px 10px;
      border-radius:999px;
      margin-bottom:10px;
    }
    .tag-empiral{ background:var(--pvc-tag-red-bg); color:var(--pvc-tag-red-text); }
    .tag-reindeer{ background:var(--pvc-tag-slate-bg); color:var(--pvc-tag-slate-text); }
    .tag-chemgard{ background:var(--pvc-tag-blue-bg); color:var(--pvc-tag-blue-text); }

    .pv-card-name{ font-size:15.5px; font-weight:700; color:#1a1f3d; margin:0 0 6px; }
    .pv-card-desc{ font-size:13px; line-height:1.8; color:#6b7088; margin:0 0 14px; min-height:42px; }

    .pv-card-footer{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding-top:12px;
      border-top:1px solid #f0f1f5;
      background:none;
      border-left:none; border-right:none; border-bottom:none;
      width:100%;
      cursor:pointer;
      font-family:inherit;
    }
    .pv-card-more{ font-size:13px; font-weight:500; color:#1a1f3d; }
    .pv-card-arrow{
      width:30px; height:30px;
      border-radius:50%;
      background:var(--pvc-navy-btn);
      display:flex; align-items:center; justify-content:center;
      transition:background .2s ease;
    }
    .pv-card-footer:hover .pv-card-arrow{ background:var(--pvc-red); }
    .pv-card-arrow svg{ width:14px; height:14px; stroke:#fff; fill:none; stroke-width:2.4; }
    .pv-card-footer:focus-visible{ outline:2px solid var(--pvc-red-bright); outline-offset:2px; }

    .pv-disclaimer{
      margin-top:26px;
      font-size:12.5px;
      color:var(--pvc-muted);
      text-align:center;
    }

    .pv-toast{
      position:fixed; bottom:26px; left:50%;
      transform:translate(-50%, 20px);
      background:var(--pvc-navy-btn); color:#fff;
      padding:12px 22px; border-radius:999px;
      font-family:'Vazirmatn', sans-serif; font-size:13.5px;
      box-shadow:0 14px 30px -10px rgba(0,0,0,.5);
      opacity:0; transition:opacity .25s ease, transform .25s ease;
      z-index:9999; pointer-events:none;
    }
    .pv-toast.show{ opacity:1; transform:translate(-50%,0); }

    /* انتقال نرم بین نمای برندها و نمای محصولات */
    .brands-view{ transition:opacity .25s ease, transform .25s ease; }
    .brands-view.is-leaving{ opacity:0; transform:translateY(8px); pointer-events:none; }

    @keyframes pvFadeUp{
      from{ opacity:0; transform:translateY(14px); }
      to{ opacity:1; transform:translateY(0); }
    }
    #productView .pv-back,
    #productView .pv-header{
      opacity:0; transform:translateY(10px);
    }
    #productView.pv-entered .pv-back{ animation:pvFadeUp .4s ease forwards; }
    #productView.pv-entered .pv-header{ animation:pvFadeUp .45s ease forwards .05s; }

    @media (prefers-reduced-motion: reduce){
      .brands-view, .pv-card, #productView .pv-back, #productView .pv-header{
        animation:none !important;
        transition:none !important;
        opacity:1 !important;
        transform:none !important;
      }
    }

    @media (max-width:680px){
      .pv-header{ flex-wrap:wrap; padding:26px 22px; }
      .pv-catalog-link{ margin-right:0; }
      .pv-header-title{ font-size:22px; }
    } }
    .brands-view{ transition:opacity .25s ease, transform .25s ease; }
    .brands-view.is-leaving{ opacity:0; transform:translateY(8px); pointer-events:none; }

    @keyframes pvFadeUp{
      from{ opacity:0; transform:translateY(14px); }
      to{ opacity:1; transform:translateY(0); }
    }
    #productView .pv-back,
    #productView .pv-header{
      opacity:0; transform:translateY(10px);
    }
    #productView.pv-entered .pv-back{ animation:pvFadeUp .4s ease forwards; }
    #productView.pv-entered .pv-header{ animation:pvFadeUp .45s ease forwards .05s; }

    @media (prefers-reduced-motion: reduce){
      .brands-view, .pv-card, #productView .pv-back, #productView .pv-header{
        animation:none !important;
        transition:none !important;
        opacity:1 !important;
        transform:none !important;
      }
    }

    @media (max-width:680px){
      .pv-header{ flex-wrap:wrap; padding:26px 22px; }
      .pv-catalog-link{ margin-right:0; }
      .pv-header-title{ font-size:22px; }
    }