body:before{
    content:"";
    display:block;
    position:fixed;
    top:0;
    left:0;
    z-index:-1;
    width:100%;
    height:100vh;
    background:url(../img/company/bg_company.jpg) center bottom no-repeat;
    background-size:cover;
}
iframe {
    width: 100%;
}
/* フォームのリセット */
input[type="text"] {
    padding: 0;
    border: none;
    border-radius: 0;
    outline: none;
    background: none;
    font-size: 100%;
}
input[type="radio"] {
    display: none;
}
input[type="checkbox"] {
    display: none;
}
input[type="submit"] {
    appearance: none;
    border: none;
}
select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border: none;
    outline: none;
    background: transparent;
}
textarea {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    resize: none;
    padding: 0;
    border: 0;
    outline: none;
    background: transparent;
    font-size: 100%;
}
input::placeholder {
    color: #AAA;
  }

/* 入力フォーム */
.contact_item-input input {
    width: 100%;
    padding: 4px 8px;
    line-height: 1.6;
    border: solid 2px #DDD;
    border-radius: 4px;
    font-size: 1.6rem;
    letter-spacing: .05rem;
    box-sizing: border-box;
    font-family: "メイリオ", Meiryo;
}
.contact_item-textarea textarea {
    width: 100%;
    height: 150px;
    padding: 8px 16px;
    line-height: 1.6;
    border: solid 2px #DDD;
    border-radius: 4px;
    font-size: 1.6rem;
    letter-spacing: .05rem;
    box-sizing: border-box;
    font-family: "メイリオ", Meiryo;
}
.select_box {
    position: relative;
    width: 100%;
    line-height: 1.6;
    border: solid 2px #DDD;
    border-radius: 4px;
    font-size: 1.6rem;
    letter-spacing: .05rem;
    box-sizing: border-box;
}
select {
    display: block;
    width: 100%;
    padding: 10px 8px;
    border-radius: 4px;
    font-size: 1.6rem;
    letter-spacing: .05rem;
}
.select_box::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 12px;
    width: 6px;
    height: 6px;
    border: 0px;
    border-top: solid 2px #666;
    border-right: solid 2px #666;
    transform: translate(0,-50%) rotate(135deg);
}
.radio{
    display: none;
  }
.radio + label {
    padding: 0 0 0 32px;
    position:relative;
    margin-right: 20px;
}
.radio + label::before {
    content: "";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 16px;
    height: 16px;
    border: solid 2px #666;
    border-radius: 50%;
}
.radio:checked + label::after {
    content: "";
    display: block;
    position: absolute;
    top: 4px;
    left: 4px;
    width: 12px;
    height: 12px;
    background: #666;
    border-radius: 50%;
}

/* 問い合わせフォーム */
.form_container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: #FFF;
}
.form_container .contact_item-heading {
    width: 100%;
    line-height: 1.6;
    padding: 16px 0;
    font-weight: bold;
    font-size: 1.6rem;
}
.form_container .contact_item-heading .badge {
    margin: 0 8px 0 0;
}
.form_container .contact_item-input {
    width: 100%;
}

/*　確認画面 */
.form_container.confirm .contact_item-confirm  {
    padding: 0 0 0 14px;
    font-size: 1.6rem;
}
.form_container.confirm .error-message {
    display: block;
    padding: 8px 0;
    color: #c93939;
    font-weight: bold;
}
.contact_btns {
    display: -ms-flexbox;
    display: flex;
    width: 100%;
    margin: 16px 0 0 0;
}
.contact_item-confirmtextarea {
    height: 300px;
    overflow-y: hidden;
}
.contact_btns .btn-submit {
    flex: 1;
    justify-content: space-between;
    margin: 0 8px;
    font-size: 1.8rem;
    align-content: center;
    justify-content: center;
    position: relative;
}
.form_container.confirm .contact_item-confirm:last-child {
    max-height: 300px;
    overflow-y: hidden;
}

/* ----------------------------------------------

            スマートフォン（ ~600px ）

---------------------------------------------- */

@media screen and (max-width: 600px) {
    body:before{
        background-size:200%;
    }
}