body.contentpane {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: #2D2D2D;
  background-color: #F8F8F8;
  padding: 20px;
  margin: 0;
}

body.contentpane .hikashop_product_edit,
body.contentpane .hikashop_product_form {
  max-width: 520px;
  margin: auto;
  background-color: white;
  padding: 20px;
  border-radius: 6px;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
}

body.contentpane img {
  max-width: 100%;
  height: auto;
  display: block;
  margin-bottom: 15px;
  border-radius: 4px;
}

body.contentpane input[type="text"],
body.contentpane input[type="number"],
body.contentpane select,
body.contentpane textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #CCC;
  border-radius: 4px;
  margin-bottom: 15px;
  box-sizing: border-box;
  font-size: 14px;
  background: #FFF;
}

body.contentpane input[type="submit"],
body.contentpane button,
body.contentpane input.button {
  display: inline-block;
  background-color: #2D364B;
  color: white;
  padding: 10px 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

body.contentpane input[type="submit"]:hover,
body.contentpane button:hover,
body.contentpane input.button:hover {
  background-color: #3F4A63;
}

body.contentpane label {
  display: block;
  font-weight: 600;
  margin-bottom: 5px;
  color: #444;
}

body.contentpane .hikashop_cart_product_custom_item {
  margin-bottom: 20px;
}

body.contentpane .hikashop_item_product_name_text {
  height: auto !important;
  overflow: visible !important;
  display: block;
  white-space: normal;
  line-height: 1.4;
  margin-bottom: 10px;
  font-weight: 600;
  font-size: 1.1em;
  color: #2D2D2D;
}