*{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:'Poppins',sans-serif;color:var(--ink);background:var(--surface)}

    :root{
      /* SDH-inspired brand palette (from provided logo) */
      --brand:#75bf53;
      --brand-2:#75bf53;
      --brand-dark:#75bf53;
      --brand-900:#1b2c36;
      --brand-soft:rgba(117,191,83,.16);

      --ink:var(--brand-900);
      --surface:#f6f8fb;

      --footer-bg:#304857;
      --footer-bg-2:#304857;
      --footer-text:rgba(255,255,255,.78);
      --footer-muted:rgba(255,255,255,.60);
      --footer-line:rgba(255,255,255,.12);
      --footer-pill:rgba(255,255,255,.08);

      --hero-lead-extra:56px;
    }

    /* ===== HEADER ===== */
    .topbar{background:var(--brand-dark);color:#fff;font-size:12px;padding:10px 40px}
    .topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
    .topbar-left,.topbar-right{display:flex;align-items:center;gap:18px}
    .topbar-item{display:flex;align-items:center;gap:8px;white-space:nowrap;opacity:.95}
    .topbar-ico{width:14px;height:14px;opacity:.9;flex:0 0 auto}
    .topbar a{color:inherit;text-decoration:none}
    .topbar a:hover{opacity:1;text-decoration:underline}

    .topbar-lang{display:flex;align-items:center;gap:8px;white-space:nowrap}
    .topbar-lang select{appearance:none;background:transparent;border:none;color:#fff;font:600 12px/1.2 'Poppins',sans-serif;padding-right:18px;cursor:pointer}
    .topbar-lang select:focus-visible{outline:3px solid rgba(255,255,255,.45);outline-offset:3px}
    .topbar-lang .caret{width:10px;height:10px;opacity:.9}

    .topbar-social{display:flex;align-items:center;gap:10px;margin-left:6px}
    .topbar-social a{width:26px;height:26px;border-radius:999px;display:grid;place-items:center;background:rgba(255,255,255,.12);text-decoration:none}
    .topbar-social a:hover{background:rgba(255,255,255,.18)}
    .topbar-social svg{width:14px;height:14px;display:block}

    header{background:#fff;padding:12px 40px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .logo{display:flex;align-items:center;gap:10px;text-decoration:none}
    .logo img{height:52px;width:auto;display:block}
    nav ul{list-style:none;display:flex;gap:26px;font-weight:500}
    nav a{text-decoration:none;color:var(--ink);font-size:14px}
    nav li.has-submenu a{display:inline-flex;align-items:center;gap:6px}
    nav li.has-submenu a::after{content:'▾';font-size:12px;opacity:.7;transform:translateY(-1px)}

    .header-actions{display:flex;align-items:center;gap:16px}
    .contact{display:flex;align-items:center;gap:10px}
    .contact svg{width:18px;height:18px;color:var(--brand)}
    .contact strong{font-size:14px;white-space:nowrap}
    .btn{background:var(--brand);color:#fff;border:none;padding:12px 22px;font-weight:700}
    .menu-toggle{width:44px;height:44px;border:none;background:transparent;display:grid;place-items:center;cursor:pointer}
    .menu-toggle .bars{width:22px;height:16px;position:relative}
    .menu-toggle .bars::before,.menu-toggle .bars::after,.menu-toggle .bars span{content:'';position:absolute;left:0;right:0;height:2px;background:var(--ink);border-radius:2px}
    .menu-toggle .bars::before{top:0}
    .menu-toggle .bars span{top:7px}
    .menu-toggle .bars::after{bottom:0}
    .menu-toggle:focus-visible{outline:3px solid rgba(117,191,83,.55);outline-offset:3px}

    @media(max-width:980px){
      .topbar{padding:10px 18px}
      header{padding:14px 18px}
      nav{display:block}
    }

    /* ===== MOBILE NAV (uses existing <nav>) ===== */
    .nav-backdrop{position:fixed;inset:0;background:rgba(2,8,23,.55);opacity:0;pointer-events:none;transition:.18s ease;z-index:60}
    body.nav-open .nav-backdrop{opacity:1;pointer-events:auto}
    @media(max-width:980px){
      header{position:sticky;top:0;z-index:70;box-shadow:0 12px 30px rgba(2,8,23,.08)}
      nav{position:fixed;top:0;right:0;bottom:0;width:min(340px, 88vw);background:#fff;z-index:70;
        transform:translateX(105%);transition:.2s ease;box-shadow:-20px 0 60px rgba(2,8,23,.18);
        padding:88px 18px 18px
      }
      body.nav-open nav{transform:translateX(0)}
      nav ul{flex-direction:column;gap:14px}
      nav a{font-size:16px}
    }

    /* ===== CONTENT HELPERS ===== */
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
    .skip-link{position:absolute;left:12px;top:12px;z-index:1000;background:#fff;color:var(--ink);padding:10px 12px;text-decoration:none;border:2px solid rgba(117,191,83,.55);transform:translateY(-140%);transition:.18s ease}
    .skip-link:focus{transform:translateY(0)}

    .btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;border:1px solid #e5e7eb;background:#fff;color:var(--ink);text-decoration:none;font-weight:600;transition:.18s ease;white-space:nowrap}
    .btn-outline:hover{border-color:#cbd5e1;transform:translateY(-1px)}
    .btn-outline:focus-visible{outline:3px solid rgba(117,191,83,.55);outline-offset:3px}

    .btn-solid{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;background:var(--brand);color:#fff;text-decoration:none;font-weight:700;border:1px solid var(--brand);transition:.18s ease;white-space:nowrap}
    .btn-solid:hover{transform:translateY(-1px);filter:saturate(1.05)}
    .btn-solid:focus-visible{outline:3px solid rgba(117,191,83,.55);outline-offset:3px}

    /* ===== INNER PAGE HERO ===== */
    .inner-hero{position:relative;overflow:hidden;isolation:isolate}
    .inner-hero::before{content:'';position:absolute;inset:0;background:url('https://images.unsplash.com/photo-1494526585095-c41746248156?q=80&w=2400&auto=format&fit=crop') center/cover no-repeat;transform:scale(1.03);z-index:-2}
    .inner-hero::after{content:'';position:absolute;inset:0;background:rgba(12,46,28,.70);z-index:-1}
    .inner-hero-inner{max-width:1200px;margin:0 auto;padding:62px 40px 54px;color:#fff;text-align:center;display:flex;flex-direction:column;align-items:center}

    .breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;font-size:13px;color:rgba(255,255,255,.82)}
    .breadcrumbs a{color:inherit;text-decoration:none}
    .breadcrumbs a:hover{text-decoration:underline}
    .crumb-sep{opacity:.75}

    .inner-hero h1{margin-top:14px;font-size:52px;line-height:1.08;font-weight:800;letter-spacing:-.02em;max-width:100%;display:inline-block}
    .inner-hero p{margin-top:12px;max-width:100%;color:rgba(255,255,255,.86);line-height:1.7}

    @media(max-width:900px){
      .inner-hero h1{font-size:40px}
    }
    @media(max-width:560px){
      .inner-hero-inner{padding:44px 18px 40px}
      .inner-hero h1{font-size:32px}
      :root{--hero-lead-extra:18px}
    }

    /* ===== SERVICE PHOTO STRIP ===== */
    .service-photos{background:#fff;box-shadow:0 18px 40px rgba(2,8,23,.08);padding:18px 18px 16px}
    .service-photos-title{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:12px}
    .service-photos-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:10px}
    .service-photos-grid img{width:100%;height:160px;object-fit:cover;display:block;background:#eef2f7;border-radius:12px}
    @media(max-width:980px){
      .service-photos-grid{grid-template-columns:repeat(2, 1fr)}
      .service-photos-grid img{height:190px}
    }

    /* ===== ARTICLE LAYOUT ===== */
    .page-wrap{max-width:1200px;margin:0 auto;padding:64px 40px}
    .page-grid{display:grid;grid-template-columns:1.65fr .9fr;gap:34px;align-items:start}

    .feature-card{background:#fff;box-shadow:0 18px 40px rgba(2,8,23,.08)}
    .feature-media{height:360px;overflow:hidden}
    .feature-media img{width:100%;height:100%;object-fit:cover;display:block}
    .feature-body{padding:28px 30px 30px}

    .article h2{font-size:28px;line-height:1.2;color:var(--ink);margin:22px 0 10px}
    .article h3{font-size:18px;line-height:1.25;color:var(--ink);margin:18px 0 8px}
    .article p{color:#6b7280;line-height:1.8;margin:10px 0}
    .article ul{padding-left:18px;color:#6b7280;line-height:1.8;margin:10px 0}
    .article li{margin:6px 0}

    .info-panel{position:sticky;top:88px;background:#fff;box-shadow:0 18px 40px rgba(2,8,23,.08);padding:22px 22px 18px}
    .info-title{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:12px}
    .info-list{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}
    .info-item{display:flex;gap:10px;align-items:flex-start;color:#6b7280;font-size:13px;line-height:1.45}
    .info-ico{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:rgba(117,191,83,.14);color:var(--brand);flex:0 0 auto}
    .info-ico svg{width:16px;height:16px;display:block}

    .callout{margin-top:16px;padding:16px 16px;background:var(--brand-soft);border-left:4px solid var(--brand)}
    .callout strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px}
    .callout span{display:block;color:#51615a;font-size:13px;line-height:1.6}

    .side-nav{margin-top:18px;padding-top:16px;border-top:1px solid #e5e7eb}
    .side-nav-title{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:12px}
    .side-nav ul{list-style:none;display:flex;flex-direction:column;gap:10px}
    .side-nav a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px;border:1px solid #e5e7eb;background:#fff;color:var(--ink);text-decoration:none;font-weight:600;font-size:13px;line-height:1.25;transition:.18s ease}
    .side-nav a:hover{border-color:#cbd5e1;transform:translateY(-1px)}
    .side-nav a:focus-visible{outline:3px solid rgba(117,191,83,.45);outline-offset:3px}
    .side-nav .arr{opacity:.7;flex:0 0 auto}
    .side-nav .all{margin-top:6px}
    .side-nav .all a{justify-content:center;font-weight:700;border-color:rgba(117,191,83,.30);background:rgba(117,191,83,.08)}
    .side-nav .all a:hover{border-color:rgba(117,191,83,.55)}

    .benefits{margin-top:34px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .benefit-card{background:#fff;box-shadow:0 18px 40px rgba(2,8,23,.08);padding:22px 22px 18px}
    .benefit-card h3{margin:0 0 10px;font-size:16px;font-weight:800}
    .benefit-card p{margin:0;color:#6b7280;line-height:1.7;font-size:13px}

    @media(max-width:980px){
      .page-grid{grid-template-columns:1fr}
      .info-panel{position:relative;top:auto}
    }
    @media(max-width:560px){
      .page-wrap{padding:46px 18px}
      .feature-media{height:240px}
      .feature-body{padding:22px 18px 22px}
      .benefits{grid-template-columns:1fr}
    }

    /* ===== FOOTER ===== */
    .site-footer{position:relative;background:radial-gradient(1100px 620px at 86% 25%, rgba(255,255,255,.08), transparent 60%), var(--footer-bg);color:#fff;overflow:hidden}
    .site-footer::before{content:'';position:absolute;inset:0;background:
      radial-gradient(480px 380px at 78% 55%, rgba(255,255,255,.06), transparent 62%),
      linear-gradient(180deg, rgba(0,0,0,.0), rgba(0,0,0,.06));
      pointer-events:none
    }
    .footer-inner{position:relative;max-width:1200px;margin:auto;padding:46px 40px 26px}
    .footer-top{display:flex;align-items:center;justify-content:space-between;gap:20px}
    .footer-brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.12em}
    .footer-brand .mark{width:34px;height:34px;display:grid;place-items:center;border-radius:8px;background:rgba(255,255,255,.10)}
    .footer-brand span{font-size:22px}
    .footer-brand img{height:46px;width:auto;display:block;border-radius:999px;background:#fff;padding:2px}
    .footer-social{display:flex;gap:12px}
    .footer-social a{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--footer-pill);color:#fff;text-decoration:none;transition:.2s ease}
    .footer-social a:hover{transform:translateY(-1px);background:rgba(255,255,255,.14)}
    .footer-divider{height:1px;background:var(--footer-line);margin:26px 0 36px}
    .footer-grid{display:grid;grid-template-columns:1.05fr .9fr .95fr 1.6fr;gap:46px;align-items:start}
    .footer-title{font-size:18px;font-weight:700;margin-bottom:18px}
    .footer-contact{display:flex;flex-direction:column;gap:14px;color:var(--footer-text)}
    .footer-contact .item{display:flex;gap:12px;align-items:flex-start}
    .footer-contact .ico{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:rgba(117,191,83,.18);color:var(--brand);flex:0 0 auto}
    .footer-contact .value{line-height:1.35}
    .footer-contact .address{margin-top:12px;color:var(--footer-muted);line-height:1.7}

    .footer-links{list-style:none;display:flex;flex-direction:column;gap:12px}
    .footer-links a{color:var(--footer-text);text-decoration:none}
    .footer-links a:hover{color:#fff;text-decoration:underline}

    .footer-cta h3{font-size:28px;line-height:1.2;margin-bottom:14px}
    .footer-cta p{color:var(--footer-muted);margin-bottom:16px}
    .subscribe{display:flex;align-items:stretch;border-radius:4px;overflow:hidden;max-width:640px}
    .subscribe input{flex:1;border:none;outline:none;padding:18px 18px;font-size:14px}
    .subscribe button{border:none;background:var(--brand);color:#fff;font-weight:700;padding:0 34px}

    .footer-bottom{padding:18px 40px 30px;text-align:center;color:rgba(255,255,255,.72);font-size:13px}
    .footer-bottom a{color:#fff;text-decoration:none}
    .footer-bottom a:hover{text-decoration:underline}

    .back-to-top{position:fixed;right:20px;bottom:16px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:var(--brand);color:#fff;text-decoration:none;box-shadow:0 10px 30px rgba(0,0,0,.35);opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s ease;z-index:50}
    .back-to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}

    @media(max-width:980px){
      .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
      .footer-cta{grid-column:1/-1}
      .footer-cta h3{font-size:24px}
      .subscribe{max-width:none}
    }
    @media(max-width:560px){
      .footer-inner{padding:38px 18px 18px}
      .footer-bottom{padding:16px 18px 28px}
      .footer-top{flex-direction:column;align-items:flex-start}
      .footer-grid{grid-template-columns:1fr}
    }