:root{
      --iran-green:#0f7a3a;
      --iran-red:#c62828;
      --ink:#0f172a;
      --muted:#475569;
      --paper:#ffffff;
      --soft:#f6f8fb;
      --line:#e5e7eb;
      --shadow: 0 18px 60px rgba(2, 6, 23, .10);
      --shadow2: 0 10px 28px rgba(2, 6, 23, .08);
      --radius: 18px;
    }

    body{
      font-family: "Vazirmatn", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
      background:
        radial-gradient(900px 300px at 80% 0%, rgba(15,122,58,.10), transparent 65%),
        radial-gradient(900px 300px at 10% 10%, rgba(198,40,40,.10), transparent 65%),
        linear-gradient(180deg, #fff, #fff 35%, #f7fafc 100%);
      color: var(--ink);
    }

    .topband{
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(90deg, rgba(15,122,58,.10), rgba(15,122,58,.04) 35%, rgba(198,40,40,.06)),
        #fff;
    }

      .tricolor {
           height: 10px; 
          border-radius: 20px;
          background: linear-gradient(90deg, var(--iran-green) 0 33%, #fff 33% 66%, var(--iran-red) 66% 100%);
          box-shadow: 0 6px 18px rgba(2, 6, 23, .06);
          text-align: center;
      }

    .hero{
      padding: 28px 0 10px;
    }

    .hero-card{
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      background: rgba(255,255,255,.92);
      backdrop-filter: blur(6px);
      position: relative;
      overflow: hidden;
    }

    .hero-card::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(420px 220px at 10% 20%, rgba(15,122,58,.14), transparent 60%),
        radial-gradient(420px 220px at 92% 10%, rgba(198,40,40,.14), transparent 60%);
      pointer-events:none;
    }

    .hero-inner{
      position: relative;
      padding: 22px 22px 18px;
    }

    .brand-badge{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding: 8px 20px;
      border: 1px solid rgba(2,6,23,.08);
      background: rgba(255,255,255,.85);
      border-radius: 999px;
      box-shadow: 0 8px 22px rgba(2,6,23,.06);
    }

    .mark{
      width: 34px;
      height: 34px;
      border-radius: 10px;
      display:grid;
      place-items:center;
      background: linear-gradient(135deg, rgba(15,122,58,.18), rgba(198,40,40,.14));
      border: 1px solid rgba(2,6,23,.10);
    }

    .h1{
      font-weight: 900;
      letter-spacing: -.3px;
      line-height: 1.15;
      margin: 14px 0 10px;
    }

    .lead{
      color: var(--muted);
      font-size: 1.02rem;
      line-height: 1.6;
      margin-bottom: 0;
    }

    .divider-soft{
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(2,6,23,.12), transparent);
      margin: 14px 0 12px;
    }

    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(2,6,23,.10);
      background: #fff;
      box-shadow: 0 10px 22px rgba(2,6,23,.06);
      font-size: .92rem;
      color: var(--ink);
    }
      .text-decoration-none {
          font-size: 20px;
      }

      .text-bg-light {
          color: #ffffff !important;
          background-color: rgb(33 129 8) !important;
      }
      .pill .dot {
          width: 9px;
          height: 9px;
          border-radius: 99px;
          background: var(--iran-green);
          box-shadow: 0 0 0 5px rgba(15,122,58,.12);
      }

    .pill.red .dot{
      background: var(--iran-red);
      box-shadow: 0 0 0 5px rgba(198,40,40,.12);
    }

    .section{
      padding: 22px 0 46px;
    }

      .section-title {
          display: flex;
          align-items: center;
          justify-content: space-between;
          gap: 14px;
          margin: 18px 0 12px;
          flex-direction: column;
      }

      .section-title h2 {
          font-weight: 800;
          font-size: 1.25rem;
          margin: 0;
          white-space: nowrap;
      }

    .hint{
      color: var(--muted);
      font-size: .95rem;
      margin: 0;
    }

    .cardx{
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow2);
      background: #fff;
      overflow: hidden;
    }

    .cardx .head{
      padding: 14px 16px;
      background:
        linear-gradient(90deg, rgba(15,122,58,.09), rgba(255,255,255,.9), rgba(198,40,40,.08));
      border-bottom: 1px solid var(--line);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 12px;
    }

    .os-badge{
      display:inline-flex;
      align-items:center;
      gap: 10px;
      font-weight: 800;
    }

    .os-icon{
      width: 34px;
      height: 34px;
      border-radius: 12px;
      border: 1px solid rgba(2,6,23,.10);
      background: #fff;
      display:grid;
      place-items:center;
      box-shadow: 0 10px 20px rgba(2,6,23,.06);
    }

    .cardx .body{
      padding: 14px 16px 16px;
    }

    .steps{
      margin: 0;
      padding-right: 18px;
      color: var(--ink);
      line-height: 1.9;
    }

    .steps li{
      margin-bottom: 8px;
    }

      .kbd {
          font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
          background: #0b1220;
          color: #e6edf3;
          padding: 10px 12px;
          border-radius: 14px;
          border: 1px solid rgba(255,255,255,.08);
          overflow: auto;
          box-shadow: 0 16px 40px rgba(2,6,23,.14);
          direction: ltr;
          text-align: left;
          font-size: .92rem;
          line-height: 1.55;
          margin-top: 10px;
          word-wrap: break-word;
      }

    .note{
      background: var(--soft);
      border: 1px dashed rgba(2,6,23,.18);
      border-radius: 14px;
      padding: 12px 12px;
      color: var(--muted);
      line-height: 1.9;
    }

    .footer{
      border-top: 1px solid var(--line);
      padding: 18px 0 26px;
      color: var(--muted);
      font-size: .95rem;
      background: #fff;
    }

    .watermark{
      position:absolute;
      inset:auto -80px -90px auto;
      width: 340px;
      height: 340px;
      opacity: .08;
      transform: rotate(-10deg);
      pointer-events:none;
      filter: grayscale(10%);
    }

      .hero-flag {
          width: 90px;
          max-width: 28vw;
          height: auto;
          opacity: .95;
      }

      /* موبایل */
      @media (max-width: 767px) {
          .hero-flag {
              width: 70px;
              margin-bottom: 8px;
          }
      }

    /* Small utility */
    .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }