:root {
      --dark:#0f172a;
      --blue:#2563eb;
      --orange:#f97316;
      --amber:#f59e0b;
      --red:#dc2626;
      --text:#1e293b;
      --muted:#64748b;
      --soft:#f8fafc;
      --line:#e2e8f0;
      --shadow:0 20px 50px rgba(15,23,42,.10);
    }

    * { box-sizing:border-box; }

    html {
      scroll-behavior:smooth;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }

    body {
      margin:0;
      font-family:Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color:var(--text);
      background:#fff;
      line-height:1.65;
    }

    img { width:100%; display:block; height:auto; }
    a { color:inherit; text-decoration:none; }
    .container { width:min(1180px,92%); margin:auto; }

    .campaign-bar {
      background:linear-gradient(90deg,#dc2626,#f97316);
      color:#fff;
      text-align:center;
      padding:10px 16px;
      font-size:15px;
      font-weight:800;
    }

    .campaign-bar a { text-decoration:underline; margin-left:8px; }

    .topbar {
      background:var(--dark);
      color:#fed7aa;
      font-size:14px;
      padding:9px 0;
    }

    .topbar-inner {
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
    }

    .header {
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.94);
      backdrop-filter:blur(14px);
      border-bottom:1px solid var(--line);
    }

    .nav {
      height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
    }

    .logo {
      font-size:23px;
      font-weight:900;
      color:var(--dark);
      letter-spacing:-.04em;
    }

    .logo span { color:var(--blue); }

    .menu {
      display:flex;
      align-items:center;
      gap:24px;
      list-style:none;
      padding:0;
      margin:0;
      font-weight:700;
      font-size:15px;
    }

    .menu > li { position:relative; }

    .menu a:hover,
    .menu a.active { color:var(--blue); }

    .menu-cta {
      background:var(--blue);
      color:#fff !important;
      padding:12px 18px;
      border-radius:999px;
    }

    .dropdown > a::after {
      content:"▾";
      font-size:12px;
      margin-left:6px;
    }

    .submenu {
      position:absolute;
      top:100%;
      left:0;
      width:280px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      box-shadow:0 20px 45px rgba(15,23,42,.12);
      padding:10px;
      list-style:none;
      margin:14px 0 0;
      opacity:0;
      visibility:hidden;
      transform:translateY(8px);
      transition:.18s ease;
      z-index:100;
    }

    .dropdown:hover .submenu {
      opacity:1;
      visibility:visible;
      transform:translateY(0);
    }

    .submenu li a {
      display:block;
      padding:11px 13px;
      border-radius:10px;
      color:var(--dark);
      font-weight:700;
    }

    .submenu li a:hover {
      background:#eff6ff;
      color:var(--blue);
    }

    .mobile-menu-btn {
      display:none;
      background:var(--dark);
      color:#fff;
      border:0;
      border-radius:10px;
      padding:10px 14px;
      font-size:22px;
      cursor:pointer;
    }

    .label {
      display:inline-flex;
      color:#c2410c;
      background:#fff7ed;
      border:1px solid #fed7aa;
      padding:8px 14px;
      border-radius:999px;
      font-weight:800;
      margin-bottom:18px;
      font-size:14px;
    }

    h1 {
      font-size:clamp(42px,6vw,72px);
      line-height:1.02;
      letter-spacing:-.055em;
      color:var(--dark);
      margin:0 0 22px;
    }

    h2 {
      font-size:clamp(30px,4vw,48px);
      line-height:1.12;
      letter-spacing:-.04em;
      color:var(--dark);
      margin:0 0 16px;
    }

    h3 {
      color:var(--dark);
      margin:0 0 10px;
      font-size:22px;
      line-height:1.25;
    }

    p { color:var(--muted); margin:0 0 18px; }

    .btn {
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:14px 22px;
      border-radius:999px;
      font-weight:900;
      transition:.2s ease;
    }

    .btn:hover { transform:translateY(-2px); }
    .btn-primary { background:var(--orange); color:#fff; }
    .btn-dark { background:var(--dark); color:#fff; }
    .btn-light { background:#fff; color:var(--dark); border:1px solid var(--line); }

    .section { padding:82px 0; }
    .soft { background:var(--soft); }
    .section-head { max-width:820px; margin:0 auto 44px; text-align:center; }

    .weld-hero {
      background:
        radial-gradient(circle at 80% 4%, rgba(249,115,22,.22), transparent 35%),
        radial-gradient(circle at 22% 18%, rgba(220,38,38,.10), transparent 28%),
        linear-gradient(180deg,#fff7ed 0%,#fff 100%);
      padding:72px 0 52px;
      overflow:hidden;
    }

    .weld-hero-grid {
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:54px;
      align-items:center;
    }

    .weld-copy p {
      font-size:19px;
      max-width:670px;
    }

    .hero-subtext {
      color:#475569;
      font-size:17px !important;
    }

    .hero-actions {
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }

    .weld-visual-wrap { position:relative; }

    .weld-visual-wrap::before {
      content:"";
      position:absolute;
      inset:28px -24px -24px 34px;
      border-radius:42px;
      background:#fed7aa;
      opacity:.7;
      z-index:0;
    }

    .weld-visual {
      position:relative;
      z-index:1;
      border-radius:38px;
      overflow:hidden;
      min-height:560px;
      background:var(--dark);
      box-shadow:0 28px 90px rgba(15,23,42,.16);
    }

    .weld-visual img {
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.92;
    }

    .weld-glass-card {
      position:absolute;
      left:28px;
      right:28px;
      bottom:28px;
      padding:22px 24px;
      border-radius:24px;
      background:rgba(255,255,255,.88);
      border:1px solid rgba(255,255,255,.72);
      backdrop-filter:blur(16px);
      box-shadow:0 18px 50px rgba(15,23,42,.18);
    }

    .weld-glass-card strong {
      display:block;
      color:var(--dark);
      font-size:20px;
      margin-bottom:4px;
    }

    .weld-glass-card span {
      color:#475569;
      font-size:15px;
    }

    .hero-metrics {
      margin-top:38px;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
    }

    .hero-metrics div {
      background:#fff;
      border:1px solid var(--line);
      border-radius:24px;
      padding:22px;
      box-shadow:0 16px 38px rgba(15,23,42,.05);
    }

    .hero-metrics strong {
      display:block;
      color:var(--dark);
      font-size:18px;
      margin-bottom:4px;
    }

    .hero-metrics span {
      color:var(--muted);
      font-size:14px;
    }

    .catalog-nav {
      margin-top:24px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      justify-content:center;
      background:#fff;
      border:1px solid var(--line);
      border-radius:999px;
      padding:10px;
      box-shadow:0 16px 38px rgba(15,23,42,.06);
      position:sticky;
      top:92px;
      z-index:20;
    }

    .catalog-nav a {
      padding:10px 14px;
      border-radius:999px;
      color:var(--dark);
      font-weight:800;
      font-size:14px;
    }

    .catalog-nav a:hover {
      background:#fff7ed;
      color:#c2410c;
    }

    .premium-head {
      text-align:center;
      max-width:900px;
      margin:0 auto 60px;
    }

    .premium-head p {
      max-width:760px;
      margin-left:auto;
      margin-right:auto;
      font-size:18px;
    }

    .premium-hero-grid {
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:30px;
      align-items:stretch;
    }

    .premium-image-large {
      position:relative;
      border-radius:36px;
      overflow:hidden;
      min-height:720px;
      box-shadow:0 30px 90px rgba(15,23,42,.18);
      background:var(--dark);
    }

    .premium-image-large img {
      width:100%;
      height:100%;
      object-fit:cover;
      display:block;
      opacity:.94;
    }

    .premium-image-large::after {
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(15,23,42,.04), rgba(15,23,42,.45));
    }

    .floating-badge {
      position:absolute;
      z-index:3;
      background:rgba(255,255,255,.96);
      backdrop-filter:blur(12px);
      border:1px solid rgba(255,255,255,.7);
      border-radius:20px;
      padding:16px 22px;
      font-weight:900;
      color:#0f172a;
      box-shadow:0 18px 45px rgba(15,23,42,.16);
    }

    .badge-1 { top:34px; left:34px; }
    .badge-2 { bottom:130px; left:34px; }
    .badge-3 { right:34px; bottom:34px; }

    .premium-side-content { display:grid; gap:24px; }

    .premium-info-card {
      background:#fff;
      border:1px solid var(--line);
      border-radius:28px;
      padding:34px;
      box-shadow:0 16px 40px rgba(15,23,42,.06);
    }

    .premium-info-card strong {
      display:block;
      font-size:24px;
      color:var(--dark);
      margin-bottom:14px;
      line-height:1.2;
    }

    .premium-info-card p { margin:0; }

    .dark-card {
      background:var(--dark);
      border-color:var(--dark);
    }

    .dark-card strong,
    .dark-card p { color:#fff; }

    .dark-experience {
      background:var(--dark);
      color:#fff;
    }

    .dark-experience h2 { color:#fff; }
    .dark-experience p { color:#cbd5e1; font-size:18px; }

    .experience-grid {
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:60px;
      align-items:start;
    }

    .use-grid {
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:22px;
    }

    .use-card {
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:26px;
      box-shadow:0 14px 34px rgba(15,23,42,.05);
      transition:.22s ease;
    }

    .use-card:hover { transform:translateY(-5px); }

    .use-card span {
      width:46px;
      height:46px;
      border-radius:16px;
      background:#fff7ed;
      color:#c2410c;
      display:grid;
      place-items:center;
      font-weight:900;
      margin-bottom:18px;
    }

    .showcase-band { background:#f8fafc; }

    .showcase-grid {
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:60px;
      align-items:center;
    }

    .showcase-image {
      border-radius:32px;
      overflow:hidden;
      box-shadow:0 25px 70px rgba(15,23,42,.12);
    }

    .showcase-image img {
      width:100%;
      height:520px;
      object-fit:cover;
    }

    .modern-list {
      margin-top:30px;
      display:grid;
      gap:14px;
      padding:0;
      list-style:none;
    }

    .modern-list li {
      background:#fff;
      border-radius:18px;
      padding:16px 18px;
      border:1px solid var(--line);
      font-weight:700;
      color:var(--dark);
    }

    .modern-list li::before {
      content:"✓";
      color:#c2410c;
      margin-right:10px;
    }

    .modern-feature-grid {
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:24px;
    }

    .modern-feature-card {
      background:#fff;
      border:1px solid var(--line);
      border-radius:28px;
      padding:34px;
      transition:.25s ease;
      box-shadow:0 14px 34px rgba(15,23,42,.05);
    }

    .modern-feature-card:hover {
      transform:translateY(-8px);
      box-shadow:0 25px 60px rgba(15,23,42,.10);
    }

    .feature-number {
      width:56px;
      height:56px;
      border-radius:18px;
      background:#fff7ed;
      color:#c2410c;
      display:grid;
      place-items:center;
      font-weight:900;
      margin-bottom:20px;
    }

    .dark-strip {
      background:var(--dark);
      color:#fff;
    }

    .dark-strip h2,
    .dark-strip h3 { color:#fff; }

    .dark-strip p { color:#cbd5e1; }

    .spec-grid {
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
      align-items:stretch;
    }

    .spec-card {
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      border-radius:24px;
      padding:28px;
    }

    .spec-card ul {
      margin:18px 0 0;
      padding-left:18px;
      color:#fed7aa;
    }

    .spec-card li { margin-bottom:8px; }

    .process-grid {
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }

    .step-card {
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:26px;
      box-shadow:0 14px 34px rgba(15,23,42,.05);
    }

    .step-number {
      width:44px;
      height:44px;
      border-radius:14px;
      background:#fff7ed;
      color:#c2410c;
      display:grid;
      place-items:center;
      font-weight:900;
      margin-bottom:16px;
    }

    .mistake-grid {
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:24px;
    }

    .mistake-card {
      background:#fff;
      border:1px solid var(--line);
      border-radius:28px;
      padding:34px;
      box-shadow:0 14px 34px rgba(15,23,42,.05);
    }

    .mistake-card strong {
      display:block;
      font-size:22px;
      margin-bottom:14px;
      color:var(--dark);
      line-height:1.2;
    }

    .mistake-card p { margin:0; }

    .geo {
      background:var(--dark);
      color:#fff;
    }

    .geo h2 { color:#fff; }
    .geo p { color:#cbd5e1; }

    .geo-tags {
      margin-top:42px;
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:14px;
    }

    .geo-tag {
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      color:#fff;
      padding:14px 22px;
      border-radius:14px;
      font-weight:800;
      font-size:15px;
      transition:.2s ease;
    }

    .geo-tag:hover {
      background:rgba(255,255,255,.14);
      transform:translateY(-2px);
    }

    .faq-grid {
      max-width:900px;
      margin:auto;
    }

    details {
      background:#fff;
      border:1px solid var(--line);
      border-radius:18px;
      padding:20px 24px;
      margin-bottom:14px;
    }

    summary {
      cursor:pointer;
      font-weight:900;
      color:var(--dark);
    }

    details p {
      margin-top:12px;
      margin-bottom:0;
    }

    .cta {
      text-align:center;
      padding:86px 20px;
      background:linear-gradient(180deg,#fff,#f8fafc);
    }

    .cta p {
      max-width:720px;
      margin:0 auto 26px;
    }

    .footer {
      background:var(--dark);
      color:#cbd5e1;
      padding:0;
    }

    .footer-main { padding:52px 0 24px; }

    .footer-grid {
      display:grid;
      grid-template-columns:1.25fr 1fr 1fr 1.2fr;
      gap:34px;
      align-items:start;
    }

    .footer-logo {
      display:inline-block;
      color:#fff;
      font-size:24px;
      font-weight:900;
      letter-spacing:-.04em;
      margin-bottom:14px;
    }

    .footer-logo span { color:#60a5fa; }

    .footer h3 {
      color:#fff;
      font-size:18px;
      margin:0 0 16px;
    }

    .footer p,
    .footer a {
      color:#cbd5e1;
      font-size:15px;
    }

    .footer p { margin:0 0 12px; }

    .footer ul {
      list-style:none;
      padding:0;
      margin:0;
    }

    .footer li { margin-bottom:9px; }

    .footer li a:hover,
    .footer-bottom a:hover { color:#fff; }

    .footer-contact-item {
      border-bottom:1px solid rgba(255,255,255,.10);
      padding-bottom:12px;
      margin-bottom:12px;
    }

    .footer-contact-item:last-child {
      border-bottom:0;
      padding-bottom:0;
    }

    .footer-contact-item strong {
      display:block;
      color:#fff;
      font-size:15px;
      margin-bottom:3px;
    }

    .footer-contact-item a {
      color:#cbd5e1;
      font-weight:700;
      font-size:16px;
    }

    .footer-address {
      color:#cbd5e1;
      font-size:15px;
      line-height:1.6;
    }

    .footer-map-link {
      display:inline-flex;
      margin-top:6px;
      color:#93c5fd !important;
      font-weight:800;
    }

    .footer-bottom {
      border-top:1px solid rgba(255,255,255,.12);
      margin-top:34px;
      padding-top:18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:#bfdbfe;
      font-size:14px;
    }

    .footer-bottom-links {
      display:flex;
      gap:18px;
      flex-wrap:wrap;
    }

    .footer-bottom a {
      color:#bfdbfe;
      margin:0;
    }

    .quick-widget {
      position:fixed;
      right:22px;
      bottom:22px;
      z-index:998;
      display:flex;
      flex-direction:column;
      gap:10px;
    }

    .quick-widget a {
      width:56px;
      height:56px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#fff;
      font-size:24px;
      box-shadow:0 14px 35px rgba(15,23,42,.22);
    }

    .quick-call { background:var(--orange); }
    .quick-whatsapp { background:#16a34a; }

    @media (max-width:1000px) {
      .mobile-menu-btn { display:block; }

      .menu {
        display:none;
        position:absolute;
        left:0;
        right:0;
        top:78px;
        background:#fff;
        border-bottom:1px solid var(--line);
        flex-direction:column;
        align-items:flex-start;
        padding:20px;
        gap:14px;
      }

      .menu.active { display:flex; }

      .submenu {
        position:static;
        opacity:1;
        visibility:visible;
        transform:none;
        box-shadow:none;
        border:0;
        width:100%;
        margin:8px 0 0;
        padding:6px 0 0 12px;
        display:block;
      }

      .weld-hero-grid,
      .premium-hero-grid,
      .experience-grid,
      .showcase-grid,
      .spec-grid {
        grid-template-columns:1fr;
      }

      .hero-metrics,
      .use-grid,
      .process-grid,
      .modern-feature-grid,
      .mistake-grid,
      .footer-grid {
        grid-template-columns:repeat(2,1fr);
      }

      .weld-visual { min-height:460px; }
    }

    @media (max-width:640px) {
      .weld-hero { padding:42px 0 34px; }
      .weld-visual { min-height:360px; border-radius:28px; }
      .weld-visual-wrap::before { display:none; }
      .weld-glass-card { left:18px; right:18px; bottom:18px; }
      .catalog-nav { border-radius:22px; position:static; justify-content:flex-start; }
      .section { padding:62px 0; }

      .hero-metrics,
      .use-grid,
      .process-grid,
      .modern-feature-grid,
      .mistake-grid,
      .footer-grid {
        grid-template-columns:1fr;
      }

      .premium-image-large { min-height:420px; }
      .floating-badge { font-size:13px; padding:10px 14px; }
      .showcase-image img { height:360px; }
      .footer-bottom { align-items:flex-start; }
    }