.pagetitle-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #fff;
    gap: 4rem;
}

/* PC向けリンク */
.page-title-button-container .company {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.page-title-button-container {
    display: flex;
    align-items: center;
    gap: 0;
}

.page-title-button-container a {
    position: relative;
    display: inline-block; /* 念のため */
    padding: 0.5rem 2rem;
    background: var(--maincolor);
    clip-path: polygon(
      20px 0,
      100% 0,
      calc(100% - 20px) 100%,
      0 100%
    );
    z-index: 0; /* 擬似要素を下に置くため */
    color: var(--maincolor); /* 必要に応じて */
  }
  
  .page-title-button-container a::before {
    content: '';
    position: absolute;
    inset: 0;
    background: white; /* ボーダー色 */
    clip-path: polygon(20px 0, 100% 0, calc(100% - 20px) 100%, 0 100%);
    z-index: -1; /* 本体の下に */
    pointer-events: none; /* クリック遮らない */
  }
  
  .page-title-button-container a:hover::before,
.page-title-button-container a.active::before {
  background: var(--maincolor);
}

.page-title-button-container a:hover,
.page-title-button-container a.active {
  color: white;
}
  

.gray-line {
    width: 90%;
    height: 1px;
    background: #ccc;
}

.page-title {
    display: inline-block;
    padding: 0.5em 1em;
    font-size: 1rem;
    color: var(--maincolor);
    text-decoration: none;
    border: 1px solid var(--maincolor);
    background: #fff;
    transition: 0.3s;
}

.page-title:hover {
    background: var(--maincolor);
    color: #fff;
}

/* カレントページの色 */
.page-title.active {
    background: var(--maincolor); 
    color: #fff;
    font-weight: bold;
}

/* スマホ向けアコーディオン */
.page-title-accordion-container {
    display: none;
    background: #fff;
}

.page-title-accordion-menu {
    width: 100%;
    border: 1px solid #fff;
    overflow: hidden;
}

.page-title-accordion-item {
    border-bottom: 1px solid #fff;
}

.page-title-accordion-header {
    display: flex;
    justify-content: space-between;
    font-size: 1rem;
    color: var(--maincolor);
    text-decoration: none;
    padding: 15px;
    background: #fff;
    border: 1px solid var(--maincolor);
    cursor: pointer;
    width: 20rem;
}

.page-title-accordion-header:hover {
    background: #e0e0e0;
}

.page-title-accordion-header.active {
    background: #aaa;
    color: #fff;
    font-weight: bold;
}

.page-title-accordion-content {
    display: none;
    flex-direction: column;
    background: #fff;
}

.accordion-link {
    display: block;
    padding: 0.5em 1em;
    font-size: 1rem;
    color: var(--maincolor);
    text-decoration: none;
    border: 1px solid var(--maincolor);
    background: #fff;
    transition: 0.3s;
}

.accordion-link.active {
    color: #fff;
    font-weight: bold;
    background: var(--maincolor);
}

.accordion-link.disabled {
    background: #E0E0E0;
    color: #A6A6A6;
    pointer-events: none;
}

.accordion-link:hover {
    text-decoration: underline;
}

/* タブレット以下 */
@media (max-width: 1300px) {

    .pagetitle-container {
        gap: 2rem;
    }

    .page-title-button-container ,.gray-line {
        display: none;
    }

    .page-title-accordion-container {
        display: flex;
        z-index: 2;
    }

    .page-title-accordion-header {
        font-size: 1rem;
        padding: 0.5rem 1rem;
        width: 15rem;
    }

    .accordion-link {
        font-size: 0.8rem;
    }
}