@charset "utf-8";

/* ========================================
   事例ページ専用コンポーネント
   ======================================== */
@layer components {
  /* Before/After Card Component */
  .c-before-after-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    border-radius: 0;
    border: none;
    padding: var(--space-6);
    background-color: transparent;
    margin-top: var(--space-8);
    margin-bottom: var(--space-8);
    position: relative;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }

  .c-before-after-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 0;
    padding: 2px;
    background: linear-gradient(
      90deg,
      var(--color-primary) 0%,
      var(--color-accent-green) 100%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box,
      linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
  }

  .c-before-after-card__section {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }

  .c-before-after-card__header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }

  .c-before-after-card__icon {
    font-size: var(--font-base);
  }

  .c-before-after-card__label {
    font-size: var(--font-base);
    font-weight: 600;
  }

  .c-before-after-card__label--before {
    color: #ef4444;
  }

  .c-before-after-card__label--after {
    color: #22c55e;
  }

  .c-before-after-card__content {
    font-size: var(--font-xl);
    font-weight: 600;
    line-height: var(--line-tight);
    color: var(--color-text-primary);
  }

  .c-before-after-card__divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-1) 0;
  }

  /* Legacy Tailwind風クラスは削除済み - BEMクラスとユーティリティクラスを使用 */

  /* Material Symbols は common.css の components レイヤーで定義済み */

  /* 事例一覧ページ */
  .l-container--normal {
    width: var(--case-container-width);
    max-width: 100%;
    margin-inline: auto;
    padding-inline: var(--space-8);
  }

  /* ページヘッダーは common.css で定義済み */

  .filter-info {
    background: var(--color-bg-section);
    border: 1px solid var(--color-border);
    border-radius: 0;
    padding: var(--space-4) 1.5rem;
    margin-bottom: var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .filter-info p {
    margin: 0;
    color: var(--color-text-secondary);
  }

  .clear-filter {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
  }

  .clear-filter:hover {
    text-decoration: underline;
  }

  .tag-filter {
    margin-bottom: 3rem;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: 0;
    background: var(--color-white);
  }

  .tag-filter__toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: var(--font-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    transition: background-color var(--duration-fast) var(--easing-standard);
  }

  .tag-filter__toggle:hover {
    background: var(--color-bg-section);
  }

  .tag-filter__toggle:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
  }

  .tag-filter__title {
    flex: 1;
  }

  .tag-filter__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    transition: transform var(--duration-base) var(--easing-standard);
    flex-shrink: 0;
  }

  .tag-filter__icon svg {
    width: 100%;
    height: 100%;
  }

  .tag-filter__toggle[aria-expanded="true"] .tag-filter__icon {
    transform: rotate(180deg);
  }

  .tag-filter__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-base) var(--easing-standard);
  }

  .tag-filter__content.is-open {
    max-height: 2000px;
  }

  .tag-filter__content-inner {
    padding: 0 var(--space-6) var(--space-6);
  }

  .tag-filter__content .tag-filter-category {
    margin-bottom: var(--space-8);
    padding-top: var(--space-6);
  }

  .tag-filter__content .tag-filter-category:first-child {
    padding-top: 0;
  }

  .tag-filter__content .tag-filter-category:last-child {
    margin-bottom: 0;
  }

  .tag-filter-category__title {
    font-size: var(--font-lg);
    font-weight: 600;
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
    text-align: left;
  }

  .tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: flex-start;
  }

  /* スマホ対応 */
  @media (max-width: 768px) {
    .tag-filter {
      text-align: left;
    }

    .tag-filter__toggle {
      padding: var(--space-3) var(--space-4);
      font-size: var(--font-lg);
    }

    .tag-filter__content-inner {
      padding: 0 var(--space-4) var(--space-4);
    }

    .tag-filter-category__title {
      font-size: var(--font-base);
      margin-bottom: var(--space-3);
    }

    .tag-list {
      justify-content: flex-start;
    }
  }

  .filter-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-white);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-3xl);
    font-size: 0.75rem;
    font-weight: 600;
    border: 2px solid var(--color-border);
    transition: all var(--duration-fast) var(--easing-standard);
    box-shadow: var(--shadow-sm);
  }

  .filter-tag:hover {
    background: var(--color-bg-section);
    color: var(--color-text-primary);
    border-color: var(--color-accent-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }

  .filter-tag.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 49, 104, 0.3);
  }

  .cases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    margin-bottom: 3rem;
  }

  .case-card {
    background: transparent;
    border: 2px solid var(--color-accent-green);
    border-radius: 0;
    overflow: hidden;
    display: flex;
    align-items: stretch;
    padding: var(--space-8) var(--space-6);
    opacity: 0;
    transform: translateY(80px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
      transform 1.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease,
      box-shadow 0.3s ease;
  }

  .case-card.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .case-card:hover {
    border-color: var(--color-primary);
  }

  .case-image-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 0 0 180px;
    min-width: 180px;
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-5);
    flex-shrink: 0;
  }

  .case-image {
    display: block;
    overflow: hidden;
    position: relative;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 3px solid var(--color-accent-yellow);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 50%;
    transition: transform var(--duration-fast) var(--easing-standard);
  }

  .case-company-name {
    font-size: var(--font-xs);
    font-weight: 300;
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: var(--space-2);
    line-height: var(--line-tight);
  }

  .case-company-name strong {
    font-weight: 600;
  }

  .case-card:hover .case-image img {
    transform: scale(1.08);
  }

  .case-content {
    padding: var(--space-4) var(--space-10) var(--space-4) var(--space-8);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
  }

  .case-content-main {
    flex: 1;
  }

  .case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--space-4);
  }

  .case-tags .tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 1.75rem;
    padding: 0 0.75rem;
    border-radius: 1.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--duration-fast) var(--easing-standard);
    box-shadow: var(--shadow-sm);
    background: var(--color-white);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
  }

  .case-tags .tag:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(26, 49, 104, 0.3);
  }

  .case-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.4;
    color: var(--color-text-primary);
  }

  .case-title a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--easing-standard);
  }

  .case-title a:hover {
    color: var(--color-accent-green);
  }

  .case-before-after {
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: var(--color-bg-section);
    border-radius: 0;
    border: 1px solid var(--color-border-light);
  }

  .before-after-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    margin-bottom: var(--space-3);
  }

  .before-after-item:last-child {
    margin-bottom: 0;
  }

  .before-after-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 5rem;
    height: 1.75rem;
    padding: 0 0.75rem;
    border-radius: 0;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex-shrink: 0;
  }

  .before-after-item:first-child .before-after-label {
    background: #fee2e2;
    color: #dc2626;
  }

  .before-after-item:last-child .before-after-label {
    background: #dcfce7;
    color: #16a34a;
  }

  .before-after-content {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    line-height: var(--line-normal);
    flex: 1;
  }

  .case-cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    min-width: 200px;
    height: 2.5rem;
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 0;
    font-size: var(--font-sm);
    font-weight: 600;
    transition: all var(--duration-fast) var(--easing-standard);
    box-shadow: 0 2px 4px rgba(26, 49, 104, 0.2);
    align-self: flex-end;
    margin-top: auto;
  }

  .case-cta-button:hover {
    background: #0f1f3d;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 49, 104, 0.3);
    color: var(--color-white);
  }

  .pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    margin-top: 3rem;
  }

  .pagination-prev,
  .pagination-next {
    padding: 0.75rem 1.5rem;
    background: var(--color-bg-section);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    font-weight: 600;
    transition: all var(--duration-fast) var(--easing-standard);
  }

  .pagination-prev:hover,
  .pagination-next:hover {
    background: #e9ecef;
    color: var(--color-text-primary);
  }

  .pagination-numbers {
    display: flex;
    gap: 0.5rem;
  }

  .pagination-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-section);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    font-weight: 600;
    transition: all var(--duration-fast) var(--easing-standard);
  }

  .pagination-number:hover {
    background: #e9ecef;
    color: var(--color-text-primary);
  }

  .pagination-number.active {
    background: #0066cc;
    color: var(--color-white);
    border-color: #0066cc;
  }

  /* 事例詳細ページ - 狭め */
  .container.case-single {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-4);
  }

  /* 事例詳細ページ専用のコンテナ調整 */
  .case-single .o-container--no-padding-mobile {
    max-width: var(--container-xl);
  }

  /* 事例一覧ページ - 参加者の声ページと同様の幅（デフォルトの .o-container を使用） */

  /* パンくずリストは common.css で定義済み */

  .header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2.5rem;
  }

  .site-logo {
    height: 2.5rem;
    width: auto;
  }

  .publisher-group {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-size: var(--font-sm);
    color: var(--color-text-secondary);
  }

  .publisher {
    margin-bottom: 0.25rem;
  }

  .publish-date {
    font-size: 0.75rem;
  }

  .hero {
    margin-bottom: 3.5rem;
    text-align: center;
    position: relative;
  }

  /* ヒーローセクション内の左揃え要素 */
  .hero .hero-label,
  .hero .hero-title {
    text-align: left;
  }

  /* ヒーローラベルラッパー */
  .hero-label-wrapper {
    text-align: left;
    margin-bottom: var(--space-4);
  }

  .hero-title {
    font-size: var(--font-4xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 var(--space-8) 0;
    line-height: 1.4;
    position: relative;
    z-index: 1;
    letter-spacing: -0.02em;
    display: block;
    visibility: visible;
    opacity: 1;
  }

  .tag-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: var(--space-8);
    position: relative;
    z-index: 1;
  }

  /* スマホでタググループを横並びに */
  @media (max-width: 768px) {
    .tag-group {
      display: flex;
      flex-direction: row;
      flex-wrap: wrap;
      align-items: center;
      gap: var(--space-2);
      justify-content: flex-start;
    }

    .tag-group .tag {
      display: inline-flex;
      flex-shrink: 0;
      height: 1.75rem;
      padding: 0 0.75rem;
      font-size: 0.75rem;
    }
  }

  .hero-label {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    font-weight: 600;
    text-decoration: none;
    cursor: default;
    pointer-events: none;
    box-shadow: var(--shadow-sm);
    margin-bottom: 0;
    width: auto;
  }

  .hero-industry {
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
    padding: 8px;
  }

  .tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.25rem;
    padding: 0 1.25rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--duration-fast) var(--easing-standard);
    cursor: pointer;
  }

  .tag--primary {
    background: var(--color-primary);
    color: var(--color-white);
    border: 1px solid var(--color-accent-green);
  }

  .tag--primary:hover {
    border-color: var(--color-primary);
    transform: translateY(0);
  }

  .tag--secondary {
    background: var(--color-white);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
  }

  .tag--secondary:hover {
    background: var(--color-accent-green);
    color: var(--color-white);
    transform: translateY(-2px);
  }

  .hero-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 0;
    margin-top: var(--space-8);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    transition: transform var(--duration-fast) var(--easing-standard);
    position: relative;
    z-index: 1;
  }

  .summary-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: 0;
    background-color: var(--color-bg);
  }

  .summary-item {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .summary-divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 0.25rem 0;
  }

  .summary-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .summary-icon {
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
    font-feature-settings: normal;
    font-variation-settings: normal;
    -webkit-tap-highlight-color: transparent;
    line-height: inherit;
    font-family: "Material Symbols Outlined";
    color: #dc2626;
    box-sizing: border-box;
    border-width: 0;
    border-style: solid;
    border-color: #e5e7eb;
    display: inline-block;
    vertical-align: middle;
    max-width: 100%;
    width: 100%;
    object-fit: cover;
    height: 20rem;
    font-size: var(--font-xl);
  }

  .summary-item:last-child .summary-icon {
    color: #16a34a;
  }

  .summary-label-text {
    font-size: var(--font-base);
    font-weight: 600;
    color: #dc2626;
    margin: 0;
  }

  .summary-item:last-child .summary-label-text {
    color: #16a34a;
  }

  .summary-content {
    font-size: var(--font-xl);
    font-weight: 600;
    line-height: 1.25;
    color: var(--color-text-primary);
    margin: 0;
  }

  .interview-wrapper {
    border: none;
    border-radius: 0;
    overflow: hidden;
    margin-bottom: 2.5rem;
    position: relative;
  }

  .interview-wrapper::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 0;
    padding: 2px;
    background: linear-gradient(
      90deg,
      var(--color-primary) 0%,
      var(--color-accent-green) 100%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box,
      linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
    z-index: 0;
  }

  .interview-wrapper::after {
    content: "";
    display: block;
    height: 4px;
    background: linear-gradient(
      90deg,
      var(--color-primary),
      var(--color-accent-green)
    );
    margin-top: 1.5rem;
  }

  .interview-wrapper > * {
    position: relative;
    z-index: 1;
  }

  .interview-header {
    background: linear-gradient(
      135deg,
      var(--color-primary) 0%,
      var(--color-accent-green) 100%
    );
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .interview-header h2 {
    font-size: var(--font-xl);
    font-weight: 600;
    color: var(--color-white);
    margin: 0 0 0.5rem 0;
  }

  .interview-label {
    font-size: var(--font-sm);
    font-weight: 300;
    color: var(--color-white);
    opacity: 0.8;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .interview-content {
    padding: 1.5rem 1.5rem 0 1.5rem;
    position: relative;
  }

  .interview-section {
    margin-bottom: 3.5rem;
  }

  .interview-question {
    font-size: var(--font-3xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-6);
    line-height: var(--line-tight);
    padding-bottom: var(--space-4);
    border-bottom: none;
    position: relative;
  }

  .interview-question::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(
      90deg,
      var(--color-primary) 0%,
      var(--color-accent-green) 100%
    );
  }

  .interview-answer {
    font-size: var(--font-base);
    line-height: 1.8;
    color: var(--color-text-primary);
  }

  .interview-answer p {
    margin-bottom: 1.5rem;
    font-size: var(--font-base);
    line-height: 1.8;
  }

  .interview-answer ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
  }

  .interview-answer li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
  }

  .interview-answer strong {
    font-weight: 600;
    color: var(--color-primary);
    background: linear-gradient(
      120deg,
      var(--color-accent-yellow) 0%,
      var(--color-accent-yellow) 100%
    );
    background-repeat: no-repeat;
    background-size: 100% 0.3em;
    background-position: 0 88%;
  }

  .interview-image {
    margin: var(--space-8) 0;
    text-align: center;
  }

  .zoom-photo {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 0;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .company-info {
    background: linear-gradient(
      135deg,
      var(--color-bg-section) 0%,
      var(--color-bg) 100%
    );
    border: none;
    border-radius: 0;
    padding: 2.5rem 2.5rem 0 2.5rem;
    margin: 2.5rem auto 0 auto;
    max-width: 800px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
  }

  .case-credit {
    text-align: right;
    margin-top: var(--space-4);
    margin-bottom: var(--space-8);
    font-size: var(--font-sm);
    color: var(--color-text-secondary);
    padding-left: 40px;
    padding-right: 40px;
  }

  .case-credit a {
    color: var(--color-text-secondary);
    text-decoration: none;
  }

  .case-credit a:hover {
    color: var(--color-primary);
    text-decoration: underline;
  }

  /* 受講生インタビュー一覧ボタン */
  .related-cases-cta {
    text-align: center;
    margin-top: var(--space-8);
    margin-bottom: var(--space-8);
  }

  .related-cases-cta .c-button-view-more {
    background-color: var(--color-primary);
    color: white;
    border-radius: 25px;
    padding: var(--space-3) var(--space-8);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--duration-smooth);
    min-width: 280px;
  }

  .related-cases-cta .c-button-view-more:hover {
    background-color: var(--color-accent-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }

  .related-cases-cta .c-button-view-more__arrow {
    transition: transform var(--duration-smooth);
  }

  .related-cases-cta .c-button-view-more:hover .c-button-view-more__arrow {
    transform: translateX(4px);
  }

  .company-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 var(--space-4) 0;
  }

  .company-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: 0;
    border: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .company-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  }

  .company-profile {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }

  .company-logo {
    width: 6rem;
    height: 6rem;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 3px solid var(--color-accent-yellow);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  .company-name {
    font-size: var(--font-sm);
    font-weight: 300;
    color: var(--color-text-primary);
    margin: 0 0 0.75rem 0;
    line-height: 1.4;
  }

  .company-name strong {
    font-weight: 600;
  }

  .company-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
  }

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

  .company-link-icon {
    font-size: var(--font-base);
  }

  .cta-section {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 0;
    padding: var(--space-8);
    margin: 2.5rem 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .cta-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
  }

  .cta-description {
    max-width: 32rem;
    margin: 0;
    opacity: 0.9;
    line-height: var(--line-normal);
  }

  .cta-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-width: 5.25rem;
    height: 3rem;
    padding: 0 var(--space-8);
    background-color: var(--color-accent-yellow);
    color: var(--color-primary);
    font-size: var(--font-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
  }

  .cta-button:hover {
    background-color: var(--color-accent-yellow);
    color: var(--color-primary);
    transform: translateY(-1px);
  }

  .cta-button-icon {
    font-size: var(--font-xl);
  }

  .related-cases {
    margin-bottom: 2.5rem;
  }

  .related-cases h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
    text-align: center;
  }

  .related-cases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .related-case-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 0;
    overflow: hidden;
    display: flex;
    flex-direction: row;
    align-items: center;
    text-align: left;
    opacity: 0;
    transform: translateY(80px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
      transform 1.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease,
      box-shadow 0.3s ease;
  }

  .related-case-card.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .related-case-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-color: var(--color-primary);
  }

  .related-case-link {
    display: block;
    text-decoration: none;
    color: inherit;
  }

  .related-case-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    margin: 1rem;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .related-case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .related-case-content {
    padding: 1rem 1rem 1rem 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    text-align: left;
    flex: 1;
  }

  .related-case-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.4;
    margin: 0 0 0.5rem 0;
  }

  .related-case-title a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--duration-base) var(--easing-standard);
  }

  .related-case-company {
    font-size: 0.675rem;
    font-weight: 300;
    color: var(--color-text-secondary);
    margin: 0 0 0.75rem 0;
  }

  .related-case-company strong {
    font-weight: 600;
  }

  .related-case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: auto;
  }

  /* スマホでタグをタイトル下に表示 */
  @media (max-width: 768px) {
    .related-case-tags {
      margin-top: var(--space-3);
      justify-content: flex-start;
      width: 100%;
      flex-basis: 100%;
    }
  }

  /* 関連事例のタグを小さく */
  .related-case-tags .tag {
    height: 1.5rem;
    padding: 0 0.5rem;
    font-size: 0.625rem;
    border-radius: 1rem;
  }

  footer {
    text-align: center;
    padding: 1.25rem 0;
    border-top: 1px solid var(--color-border);
    margin-top: 0;
  }

  footer a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-sm);
    transition: color 0.2s ease;
  }

  footer a:hover {
    color: var(--color-primary);
    text-decoration: underline;
  }
}

/* ========================================
   Responsive Design - Case Pages
   ======================================== */

/* Container Responsive */
@media (max-width: 1024px) {
  .l-container--normal {
    width: calc(100% - 4rem);
    padding-inline: var(--space-4);
  }
}

@media (max-width: 768px) {
  .l-container--normal {
    width: calc(100% - 2rem);
    padding-inline: var(--space-4);
  }
}

/* Cases Grid Responsive */
@media (max-width: 1024px) {
  .cases-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
}

@media (max-width: 768px) {
  .cases-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
}

/* Container Responsive for Single Page */
@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* Interview Content Responsive */
@media (min-width: 768px) {
  .interview-content {
    padding: 2.5rem;
  }
}

/* Company Card Responsive */
@media (min-width: 640px) {
  .company-card {
    flex-direction: row;
    align-items: center;
  }
}

/* CTA Section Responsive */
@media (min-width: 768px) {
  .cta-section {
    padding: 3rem;
  }
  .cta-title {
    font-size: 1.875rem;
  }
}

/* Related Cases Responsive */
@media (min-width: 768px) {
  .related-cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  /* ページヘッダーのレスポンシブスタイルは common.css で定義済み */

  .filter-info {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .tag-filter .tag-list {
    justify-content: flex-start;
  }

  .filter-tag {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
  }

  .case-card {
    flex-direction: column;
    padding: var(--space-6) var(--space-4);
  }

  .case-image-wrapper {
    flex: none;
    min-width: auto;
    width: 100%;
    margin: 0;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding: var(--space-5);
    gap: var(--space-4);
  }

  .case-image {
    width: 80px;
    height: 80px;
  }

  .case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .case-company-name {
    font-size: var(--font-sm);
    margin-top: 0;
    font-weight: 300;
    text-align: left;
    flex: 1;
  }

  .case-company-name strong {
    font-weight: 600;
  }

  .case-content {
    padding: var(--space-5);
  }

  .interview-header {
    padding: 1.25rem;
  }

  .interview-header h2 {
    font-size: var(--font-lg);
    margin-bottom: 0.25rem;
  }

  .interview-label {
    font-size: var(--font-xs);
  }

  .case-title {
    font-size: 1rem;
  }

  .case-before-after {
    padding: 0.75rem;
  }

  .before-after-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .before-after-label {
    min-width: auto;
    width: auto;
  }

  .pagination {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .pagination-prev,
  .pagination-next {
    padding: 0.5rem var(--space-4);
    font-size: var(--font-sm);
  }

  .pagination-number {
    width: 35px;
    height: 35px;
    font-size: var(--font-sm);
  }

  .container {
    padding: 0 var(--space-4);
  }

  /* Company Info Mobile Responsive */
  .company-info {
    padding: 1.5rem 1.5rem 0 1.5rem;
    margin: 2rem 0 0 0;
  }

  .company-info h4 {
    font-size: var(--font-sm);
    margin-bottom: var(--space-3);
    text-align: center;
  }

  .company-card {
    padding: var(--space-4);
  }

  .company-profile {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }

  .company-logo {
    width: 60px;
    height: 60px;
  }

  .company-name {
    font-size: var(--font-sm);
    line-height: var(--line-tight);
    font-weight: 300;
  }

  .company-name strong {
    font-weight: 600;
  }

  .company-link {
    font-size: var(--font-xs);
    padding: var(--space-2) var(--space-3);
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .header-bar {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .publisher-group {
    align-items: center;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .summary-grid {
    padding: var(--space-4);
  }

  .interview-content {
    padding: var(--space-4);
  }

  .section h2 {
    font-size: 1.125rem;
  }

  .company-card {
    flex-direction: column;
    text-align: center;
  }

  .company-profile {
    justify-content: center;
  }

  .cta-section {
    padding: 1.5rem;
  }

  .cta-title {
    font-size: 1.25rem;
  }

  .related-cases-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.25rem;
  }

  .summary-content {
    font-size: 1.125rem;
  }

  .company-logo {
    width: 4rem;
    height: 4rem;
  }

  .cta-button {
    width: 100%;
    justify-content: center;
  }
}

/* ========================================
   参加者の声ページ専用スタイル
   ======================================== */

.voices-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  margin-bottom: 3rem;
}

.voice-card {
  background: #f5f5f5;
  border: 2px solid var(--color-accent-green);
  border-radius: 0;
  overflow: hidden;
  display: flex;
  align-items: stretch;
  padding: var(--space-8) var(--space-6);
  opacity: 0;
  transform: translateY(80px);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.voice-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.voice-card:hover {
  border-color: var(--color-primary);
}

.voice-image-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 0 0 180px;
  min-width: 180px;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-5);
  flex-shrink: 0;
}

.voice-image {
  display: block;
  overflow: hidden;
  position: relative;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 3px solid var(--color-accent-yellow);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.voice-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 50%;
  transition: transform var(--duration-fast) var(--easing-standard);
}

.voice-company-name {
  font-size: var(--font-xs);
  font-weight: 300;
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: var(--space-2);
  line-height: var(--line-tight);
}

.voice-company-name strong {
  font-weight: 600;
}

.voice-card:hover .voice-image img {
  transform: scale(1.08);
}

.voice-content {
  padding: var(--space-4) var(--space-10) var(--space-4) var(--space-8);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.voice-content-main {
  flex: 1;
}

.voice-date {
  display: block;
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  line-height: var(--line-tight);
}

.voice-title {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: var(--line-relaxed);
  color: var(--color-accent-green);
  margin-bottom: var(--space-4);
}

.voice-testimonial {
  font-size: var(--font-base);
  line-height: var(--line-relaxed);
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
}

.voice-testimonial p {
  margin-bottom: var(--space-4);
}

.voice-testimonial p:last-child {
  margin-bottom: 0;
}

.voice-video {
  margin-bottom: var(--space-6);
}

.voice-video-wrapper {
  position: relative;
  width: 60%; /* 60%のサイズに縮小 */
  max-width: 360px; /* 最大幅を制限（600pxの60%） */
  aspect-ratio: 16 / 9; /* 16:9のアスペクト比を維持 */
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-bg-section);
}

.voice-video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.voice-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-4);
}

.voice-tags .tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 1.75rem;
  padding: 0 0.75rem;
  border-radius: 1.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--duration-fast) var(--easing-standard);
  box-shadow: var(--shadow-sm);
  background: var(--color-white);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.voice-tags .tag:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(26, 49, 104, 0.3);
}

/* 参加者の声ページ モバイル対応 */
@media (max-width: 768px) {
  .voice-card {
    flex-direction: column;
    padding: var(--space-6) var(--space-4);
  }

  .voice-image-wrapper {
    flex: none;
    min-width: auto;
    width: 100%;
    margin: 0;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding: var(--space-5);
    gap: var(--space-4);
  }

  .voice-image {
    width: 80px;
    height: 80px;
  }

  .voice-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .voice-company-name {
    font-size: var(--font-sm);
    margin-top: 0;
    font-weight: 300;
    text-align: left;
    flex: 1;
  }

  .voice-company-name strong {
    font-weight: 600;
  }

  .voice-content {
    padding: var(--space-5);
  }

  .voice-date {
    font-size: var(--font-xs);
    margin-bottom: var(--space-1);
  }

  .voice-title {
    font-size: 1.125rem;
  }

  .voice-testimonial {
    font-size: var(--font-sm);
  }

  .voice-video-wrapper {
    margin-bottom: var(--space-4);
    max-width: 100%; /* モバイルでは全幅表示 */
  }
}