picture {
    display: block;
    padding: 0;
    margin: 0;
    font-size: 0;
}
.system-main .sec_01 img {
    width: 100%;
}
.system-main .system-main_enn{
    background-color:unset;
}

.system-course_box {
    max-width: 750px;
    margin: 0 auto 5rem;
    border-radius: 0 0 1rem 1rem;
    padding: 2rem 10rem;
    background-color: #fff;
}

.system-main_enn {
    padding: 0;
}

.system-main .sec_01 .pink:before{
    content: none;
}

.course_time_text{
    font-size: var(--font-size-f20);
    padding: 0 1rem;
    position: relative;
    margin: 1rem 0;
}
/* テキストに　カギカッコ */
.course_time_text::before {
    content: "";
    position: absolute;
    width: 4%;
    height: 48%;
      background-image: repeating-linear-gradient(90deg, #000, #000 100px, transparent 100px, transparent 100px), repeating-linear-gradient(180deg, #000, #000 100px, transparent 100px, transparent 100px);
  background-position: left top, left top;
  background-repeat: repeat-x, repeat-y;
  background-size: 100% 1px, 1px 100%;
  top: 0;
  left: 0;
}

.course_time_text::after {
    content: "";
    position: absolute;
    width: 4%;
    height: 48%;
    background-image: repeating-linear-gradient(90deg, #000, #000 100px, transparent 100px, transparent 100px), repeating-linear-gradient(180deg, #000, #000 100px, transparent 100px, transparent 100px);
    background-position: left top, left top;
    background-repeat: repeat-x, repeat-y;
    background-size: 100% 1px, 1px 100%;
    bottom: 0;
    right: 0;
    transform: rotate(180deg);
}


/* 料金を確認する */
.course_time_text_btn{
    font-size: var(--font-size-f20);
    margin: 2rem 0 1rem;
    border-bottom: 1px solid #000;
    padding-bottom: 1rem;
}

.arrow {
    position: relative;
    display: inline-block;
    width: 100%;
  }
  
  .arrow::before,
  .arrow::after {
    content: "";
    position: absolute;
    top: calc(50% - 2px);
    right: 6%;
    width: 10px;
    height: 2px;
    border-radius: 9999px;
    background-color: #000000;
    transform-origin: 50% calc(100% - 5px) ;
  }
  
  .arrow::before {
    transform: rotate(45deg);
  }
  
.arrow::after {
    transform: rotate(-45deg);
  }

/* 料金 */
.font-style-italic span {
    font-style: italic;
    font-weight: bold;
}
.sec_01 .pink .unit{
    font-size: var(--font-size-f40);
}
.sec_01 .pink .unit.f20 {
    font-size: var(--font-size-f20);
}
.text_open_box {
    width: 80%;
    margin: 0 auto;
}
.course_time ul li{
display: flex;
justify-content: space-between;
}
.course_time-box{
    margin-top: 1rem;
}


/* 開閉する */
.text_open_box {
    max-height: 0;
    opacity: 0;
    transition: max-height 0.4s ease-out, opacity 0.4s ease-out, margin 0.4s ease-out;
    margin-top: 0;
}

.text_open_box.open {
    max-height: 1000px; /* コンテンツの最大高さに応じて調整 */
    opacity: 1;
    margin-top: 1rem;
    transition: max-height 0.4s ease-in, opacity 0.4s ease-in, margin 0.4s ease-in;
}
.sec_01 .pink .unit.f30 {
    font-size: var(--font-size-f30);
}

.course_time .course_time_subtext {
    justify-content: center;
    margin-top: -11px;
    margin-bottom: 0.3rem;
}
.course_time_subtext span {
    font-size: 24px;
}

/* 矢印の回転アニメーション */
.arrow {
    position: relative;
    display: inline-block;
    width: 100%;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.arrow.open::before {
    transform: rotate(135deg);
}

.arrow.open::after {
    transform: rotate(-135deg);
}

.arrow::before,
.arrow::after {
    content: "";
    position: absolute;
    top: calc(50% - 2px);
    right: 6%;
    width: 10px;
    height: 2px;
    border-radius: 9999px;
    background-color: #000000;
    transform-origin: 50% calc(100% - 5px);
    transition: transform 0.3s ease;
}

.arrow::before {
    transform: rotate(45deg);
}

.arrow::after {
    transform: rotate(-45deg);
}
.course_time.text_open_box.open {
    overflow: unset;
}

/* セクション　02a */
section.sec_01.sec_02a {
    background: #ffffff;
}
.sec_02a > p{
    text-align: center;
    margin: 2rem 0 4rem;
}


/* セクション　03a */
section.sec_01.sec_03a {
    background: var(--pink-color);
}

.sec_03a > h3{
    color: #fff;
    text-align: center;
    margin: 0 0 2rem;
}
.course_time_subtext2 {
    padding-left: 3.6em;
    text-indent: -3.6em;
}

.sec_03a .relax .course_time_text::before,
.sec_03a .relax .course_time_text::after {
    content: none;
}

/* セクション　04a */
section.sec_04a {
    text-align: center;
    margin: 3rem auto;
}

section.sec_04a span{
    display: block;
    margin-bottom: 1rem;
}
.system-main_text p{
    margin: 0 0 4rem;
}
.sp_only{
    display: none;
}

@media screen and (max-width: 600px) {
    .sp_only{
        display: block;
    }
    .sp_font{
        font-size: 26px;
    }
    .sp_font22{
        font-size: 22px;
    }
    .system-main .f30 {
        font-size: 26px;
    }
    .course_time_subtext span {
        font-size: 20px;
    }
    .sec_02a > p {
        font-size: 14px;
        margin: 0 0 2rem 0;
    }
    .course_time_text {
        font-size: 18px;
        padding: 0;
    }
    .system-course_box{
        padding: 2rem 1rem;
    }
    .text_open_box {
        width: 100%;
    }
    section.sec_04a {
        padding: 0 1rem;
    }
    /* フッター文言 */
    section.sec_04a span.f30 {
        font-size: 18px;
        letter-spacing: -2px;
    }
    section.sec_04a span.f20 {
        font-size: 11px;
    }

}