*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  :root {
    --navy:        #1a2e4a;
    --navy-dark:   #0f1e30;
    --navy-mid:    #243959;
    --blue:        #2a6099;
    --blue-light:  #3a7abf;
    --red:         #c0392b;
    --red-light:   #e74c3c;
    --bg:          #f4f6f8;
    --surface:     #ffffff;
    --surface2:    #edf0f4;
    --border:      #cdd4dc;
    --border-light:#e2e7ed;
    --text:        #1a2e4a;
    --text-muted:  #4a6080;
    --text-dim:    #7a93aa;
    --label:       #2a4060;
    --success:     #27ae60;
    --radius:      4px;
  }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Open Sans', sans-serif;
    font-size: 14px;
    min-height: 100vh;
  }

  
  .top-bar {
    background: #1a1a1a;
    padding: 0;
  }
  .top-bar-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    height: 36px;
  }
  .top-bar-phone {
    color: #ccc;
    font-size: 12.5px;
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.03em;
  }
  .top-bar-phone:hover { color: #fff; }

  
  .page-header {
    background: #fff;
    border-bottom: 1px solid #ddd;
    padding: 12px 0;
  }
  .header-inner {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
  }
  .logo-block {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
  }
  .logo-block img {
    height: 64px;
    width: auto;
    display: block;
  }
  .header-right {
    text-align: right;
  }
  .header-tagline {
    font-size: 15px;
    font-weight: 700;
    color: #1a2e4a;
    letter-spacing: 0.01em;
    margin-bottom: 6px;
  }
  .header-iso {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    flex-wrap: wrap;
  }
  .header-iso a {
    font-size: 11.5px;
    color: #2a6099;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
  }
  .header-iso a:hover { border-color: #2a6099; }

  
  .nav-bar {
    background: #2e5d8e;
    position: relative;
    z-index: 100;
  }
  .nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0;
    display: flex;
  }
  .nav-item {
    position: relative;
    color: #fff;
    font-size: 12.5px;
    font-weight: 700;
    text-decoration: none;
    padding: 13px 16px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-right: 1px solid rgba(255,255,255,0.15);
    transition: background 0.15s;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    user-select: none;
  }
  .nav-item:first-child { border-left: 1px solid rgba(255,255,255,0.15); }
  .nav-item:hover, .nav-item.active { background: #c0392b; }
  .nav-item .nav-arrow {
    font-size: 8px;
    opacity: 0.7;
    margin-left: 2px;
  }

  
  .nav-item .dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: #fff;
    border: 1px solid #ccc;
    border-top: 2px solid #c0392b;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 200;
  }
  .nav-item:hover .dropdown { display: block; }
  .dropdown a {
    display: block;
    padding: 9px 16px;
    font-size: 12.5px;
    font-weight: 600;
    color: #1a2e4a;
    text-decoration: none;
    text-transform: none;
    letter-spacing: 0;
    border-bottom: 1px solid #eee;
    transition: background 0.15s, color 0.15s;
  }
  .dropdown a:last-child { border-bottom: none; }
  .dropdown a:hover { background: #2e5d8e; color: #fff; }

  
  .page-wrap {
    max-width: 100%;
    margin: 0 auto;
    padding: 36px 24px 64px;
  }

  
  .page-banner {
    background: var(--navy);
    margin: 0 0 28px;
    padding: 22px 28px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
  }
  .page-banner h1 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 22px;
    color: #fff;
    letter-spacing: 0.03em;
  }
  .page-banner p { color: #8aaabb; font-size: 13px; margin-top: 4px; max-width: 480px; }
  .iso-badges { display: flex; gap: 8px; flex-wrap: wrap; }
  .iso-badge {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 3px;
    padding: 4px 10px;
    font-size: 11px;
    color: #a0c0d8;
    font-weight: 600;
    letter-spacing: 0.04em;
    white-space: nowrap;
  }

  
  .progress-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 24px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
  }
  .step-item { display: flex; align-items: center; gap: 10px; flex: 1; }
  .step-item:last-child { flex: none; }
  .step-circle {
    width: 32px; height: 32px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: #fff;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 13px;
    color: var(--text-dim);
    transition: all 0.3s ease;
    flex-shrink: 0;
  }
  .step-item.active .step-circle { border-color: var(--blue); background: var(--blue); color: #fff; }
  .step-item.done  .step-circle  { border-color: var(--success); background: var(--success); color: #fff; }
  .step-item.done  .step-num     { display: none; }
  .step-item.done  .step-circle::after { content: '✓'; font-size: 13px; }
  .step-label {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    white-space: nowrap;
    transition: color 0.3s;
  }
  .step-item.active .step-label { color: var(--blue); }
  .step-item.done  .step-label  { color: var(--success); }
  .step-connector { flex: 1; height: 2px; background: var(--border); margin: 0 10px; transition: background 0.3s; }
  .step-connector.done { background: var(--success); }

  
  .form-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  }
  @keyframes panelIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  
  .panel-header {
    background: var(--navy);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 14px;
    border-bottom: 3px solid var(--red);
  }
  .panel-icon {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 17px;
    flex-shrink: 0;
  }
  .panel-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 16px;
    color: #fff;
    letter-spacing: 0.03em;
    text-transform: uppercase;
  }
  .panel-subtitle { font-size: 12px; color: #8aaabb; margin-top: 2px; }
  .panel-body { padding: 28px 28px 24px; }

  
  .field-row { display: grid; gap: 18px; margin-bottom: 18px; }
  .col-1 { grid-template-columns: 1fr; }
  .col-2 { grid-template-columns: 1fr 1fr; }
  .col-3 { grid-template-columns: 1fr 1fr 1fr; }
  .field-group { display: flex; flex-direction: column; gap: 6px; }

  label {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--label);
  }
  label .req { 
    color: #ff1800;
    margin-left: 2px;
    font-size: 25px;
}
  label .opt { color: var(--text-dim); font-weight: 400; font-size: 11px; text-transform: none; letter-spacing: 0; margin-left: 4px; }

  input[type="text"], input[type="email"], input[type="tel"], input[type="number"], select, textarea {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: 'Open Sans', sans-serif;
    font-size: 13.5px;
    padding: 9px 12px;
    width: 100%;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    -webkit-appearance: none; appearance: none;
  }
  input[type="text"]:focus, input[type="email"]:focus, input[type="tel"]:focus,
  input[type="number"]:focus, select:focus, textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(42,96,153,0.12);
  }
  input::placeholder, textarea::placeholder { color: #aab8c8; font-size: 12.5px; }
  select {
    background-image: url(data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234a6080' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E);
    background-repeat: no-repeat; background-position: right 12px center; padding-right: 34px; cursor: pointer;
  }
  select option { background: #fff; }
  textarea { resize: vertical; min-height: 90px; line-height: 1.55; }
  .mono-input input { font-family: 'Courier New', monospace; font-size: 12.5px; }
  .field-hint { font-size: 11px; color: var(--text-dim); line-height: 1.45; margin-top: 1px; }
  .contact-note {
    font-size: 12.5px;
    color: var(--text-muted);
    background: #edf2f7;
    border-left: 3px solid var(--blue);
    padding: 9px 13px;
    margin-bottom: 18px;
    border-radius: 0 var(--radius) var(--radius) 0;
  }
  .contact-note.error {
    background: #fdf0f0;
    border-left-color: var(--red);
    color: #c0392b;
    font-weight: 600;
  }
  .input-error { border-color: var(--red) !important; box-shadow: 0 0 0 3px rgba(192,57,43,0.1) !important; }

  
  .q-num {
    display: inline-block;
    min-width: 26px;
    font-size: 11px;
    font-weight: 800;
    color: #2a6099;
    font-family: 'Montserrat', sans-serif;
    margin-right: 1px;
  }

  
  .section-divider { display: flex; align-items: center; gap: 12px; margin: 24px 0 18px; }
  .section-divider-label {
    font-family: 'Montserrat', sans-serif;
    font-size: 11px; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--blue); white-space: nowrap;
  }
  .section-divider-line { flex: 1; height: 1px; background: var(--border-light); }

  
  .pill-group { display: flex; flex-wrap: wrap; gap: 7px; }
  .pill-label { position: relative; cursor: pointer; }
  .pill-label input[type="radio"] { position: absolute; opacity: 0; width: 0; height: 0; }
  .pill-label .pill-text {
    display: block; padding: 7px 14px;
    border: 1.5px solid var(--border);
    border-radius: 3px;
    font-size: 12.5px; font-weight: 600; color: var(--text-muted);
    transition: all 0.18s; background: #fff; user-select: none;
    letter-spacing: 0.02em;
  }
  .pill-label input[type="radio"]:checked + .pill-text { border-color: var(--blue); background: var(--blue); color: #fff; }
  .pill-label .pill-text:hover { border-color: var(--blue); color: var(--blue); background: #f0f5fb; }

  
  .toggle-group { display: flex; border: 1.5px solid var(--border); border-radius: var(--radius); overflow: hidden; width: fit-content; }
  .toggle-label { position: relative; cursor: pointer; }
  .toggle-label input[type="radio"] { position: absolute; opacity: 0; width: 0; height: 0; }
  .toggle-label .toggle-text {
    display: block; padding: 7px 18px;
    font-size: 12.5px; font-weight: 600; color: var(--text-muted);
    transition: all 0.18s; background: #fff; user-select: none;
    border-right: 1.5px solid var(--border);
  }
  .toggle-label:last-child .toggle-text { border-right: none; }
  .toggle-label input[type="radio"]:checked + .toggle-text { background: var(--blue); color: #fff; border-color: var(--blue); }

  
  .conditional-field {
    display: none; margin-top: 12px; padding: 14px 16px;
    background: #f0f5fb; border: 1px solid #c8d8ec;
    border-left: 3px solid var(--blue); border-radius: var(--radius);
  }
  .conditional-field.visible { display: block; animation: slideDown 0.2s ease; }
  @keyframes slideDown { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
  .conditional-field .field-row { margin-bottom: 10px; }
  .conditional-field .field-row:last-child { margin-bottom: 0; }

  
  .expand-panel { margin-top: 20px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
  .expand-trigger {
    width: 100%; background: var(--surface2);
    border: none; padding: 14px 18px;
    display: flex; align-items: center; justify-content: space-between;
    cursor: pointer; transition: background 0.18s;
  }
  .expand-trigger:hover { background: #e2e8f0; }
  .expand-trigger-left { display: flex; align-items: center; gap: 11px; }
  .expand-trigger-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700; font-size: 13px;
    letter-spacing: 0.04em; text-transform: uppercase; color: var(--navy);
  }
  .expand-badge {
    font-size: 10px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
    padding: 3px 8px; border-radius: 2px;
    background: #e8f4ec; color: #27ae60; border: 1px solid #b8ddc4;
  }
  .expand-chevron { color: var(--text-dim); transition: transform 0.3s; font-size: 16px; line-height: 1; }
  .expand-trigger.open .expand-chevron { transform: rotate(180deg); }
  .expand-content { display: none; padding: 22px 20px; background: #fff; border-top: 1px solid var(--border-light); }
  .expand-content.open { display: block; animation: slideDown 0.22s ease; }

  
  .sub-group { margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--border-light); }
  .sub-group:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
  .sub-group-title {
    font-family: 'Montserrat', sans-serif; font-size: 11px; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--blue); margin-bottom: 16px;
    display: flex; align-items: center; gap: 8px;
  }
  .sub-group-title::after { content: ''; flex: 1; height: 1px; background: var(--border-light); }

  
  .form-nav {
    display: flex; align-items: flex-start; justify-content: space-between;
    margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--border-light);
  }
  .btn {
    font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 13px;
    letter-spacing: 0.06em; text-transform: uppercase; padding: 11px 24px;
    border-radius: var(--radius); border: none; cursor: pointer; transition: all 0.18s;
    display: inline-flex; align-items: center; gap: 7px;
  }
  .btn-ghost { background: #fff; color: var(--text-muted); border: 1.5px solid var(--border); }
  .btn-ghost:hover { border-color: var(--navy); color: var(--navy); }
  .btn-primary { background: var(--blue); color: #fff; box-shadow: 0 2px 8px rgba(42,96,153,0.25); }
  .btn-primary:hover { background: var(--blue-light); box-shadow: 0 4px 14px rgba(42,96,153,0.3); transform: translateY(-1px); }
  .btn-submit { background: var(--red); color: #fff; font-size: 14px; padding: 12px 32px; box-shadow: 0 2px 8px rgba(192,57,43,0.25); }
  .btn-submit:hover { background: var(--red-light); box-shadow: 0 4px 14px rgba(192,57,43,0.3); transform: translateY(-1px); }
  .btn-contact { background: #fff; color: var(--navy); border: 1.5px solid var(--navy); }
  .btn-contact:hover { background: var(--navy); color: #fff; }
  .btn svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
  .nav-hint { font-size: 11px; color: var(--text-dim); margin-top: 5px; }

  
  .compat-link { display: inline-flex; align-items: center; gap: 5px; font-size: 14px; color: var(--blue); text-decoration: none; font-weight: 600; margin-top: 5px; }
  .compat-link:hover { text-decoration: underline; }

  
  .sds-upload-btn {
    display: inline-flex; align-items: center; gap: 7px;
    font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 700;
    letter-spacing: 0.05em; text-transform: uppercase;
    color: var(--navy); background: #fff;
    border: 1.5px solid var(--navy); border-radius: var(--radius);
    padding: 8px 16px; cursor: pointer; transition: all 0.18s;
    margin-top: 6px;
  }
  .sds-upload-btn:hover { background: var(--navy); color: #fff; }
  .sds-upload-btn svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
  .sds-drop-zone {
    display: none;
    margin-top: 10px;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    background: #f7f9fc;
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    animation: slideDown 0.2s ease;
  }
  .sds-drop-zone.visible { display: block; }
  .sds-drop-zone.drag-over { border-color: var(--blue); background: #eef4fb; }
  .sds-drop-zone-icon { font-size: 28px; margin-bottom: 8px; }
  .sds-drop-zone p { font-size: 13px; color: var(--text-muted); line-height: 1.55; }
  .sds-drop-zone p strong { color: var(--blue); }
  .sds-drop-zone .sds-browse {
    display: inline-block; margin-top: 10px;
    font-size: 12.5px; font-weight: 700; color: var(--blue);
    text-decoration: underline; cursor: pointer;
  }
  .sds-drop-zone .sds-hint { font-size: 11px; color: var(--text-dim); margin-top: 6px; }
  .sds-file-list { margin-top: 8px; }
  .sds-file-item {
    display: flex; align-items: center; gap: 10px;
    background: #eef4fb; border: 1px solid #c8d8ec;
    border-radius: var(--radius); padding: 8px 12px;
    margin-top: 6px; font-size: 12.5px; color: var(--navy);
  }
  .sds-file-item svg { width: 14px; height: 14px; fill: none; stroke: var(--blue); stroke-width: 2; stroke-linecap: round; flex-shrink: 0; }
  .sds-file-name { flex: 1; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .sds-file-size { color: var(--text-dim); font-size: 11px; flex-shrink: 0; }
  .sds-file-remove { color: var(--text-dim); cursor: pointer; font-size: 16px; line-height: 1; padding: 0 2px; transition: color 0.15s; flex-shrink: 0; }
  .sds-file-remove:hover { color: var(--red); }

  
  .success-panel { text-align: center; padding: 56px 32px; }
  .success-icon {
    width: 68px; height: 68px; border-radius: 50%;
    background: #e8f5ec; border: 2px solid var(--success);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px; font-size: 30px;
  }
  .success-title { font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 22px; color: var(--navy); margin-bottom: 10px; }
  .success-body { color: var(--text-muted); font-size: 14px; line-height: 1.65; max-width: 420px; margin: 0 auto; }

  
  .page-footer {
    background: var(--navy-dark);
    padding: 28px 0;
    margin-top: 40px;
  }
  .footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 32px;
    color: #8aaabb;
    font-size: 12.5px;
  }
  .footer-col h4 { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: #c8dae8; margin-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.08); padding-bottom: 7px; }
  .footer-col p { line-height: 1.7; }
  .footer-col a { color: #8aaabb; text-decoration: none; display: block; margin-bottom: 4px; }
  .footer-col a:hover { color: #fff; }
  .footer-bottom { text-align: center; color: #4a6478; font-size: 11.5px; padding: 14px 24px 0; border-top: 1px solid rgba(255,255,255,0.06); margin-top: 24px; }

  
  @media (max-width: 640px) {
    .col-2, .col-3 { grid-template-columns: 1fr; }
    .panel-body { padding: 18px 16px; }
    .step-label { display: none; }
    .form-nav { flex-direction: column-reverse; gap: 12px; }
    .btn { width: 100%; justify-content: center; }
    .footer-inner { grid-template-columns: 1fr; }
    .nav-inner { overflow-x: auto; }
    .header-tagline { font-size: 12px; }
    .header-iso { gap: 6px; }
  }