.about-hero-section {
  padding: 88px 0 72px;
  background:
    radial-gradient(circle at top right, rgba(13, 110, 253, 0.12), transparent 28%),
    linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
}

.about-hero-copy {
  max-width: 720px;
}

.about-page-badge {
  display: inline-block;
  background: #eaf3ff;
  color: #0d6efd;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.about-page-title {
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 18px;
  color: #212529;
}

.about-page-desc {
  color: #6c757d;
  font-size: 1.05rem;
  line-height: 1.9;
  margin-bottom: 28px;
}

.about-hero-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.about-hero-btn-group .btn {
  border-radius: 12px;
  padding: 12px 20px;
  font-weight: 600;
}

.about-hero-side-card {
  height: 100%;
}

.about-hero-side-inner {
  background: #ffffff;
  border-radius: 24px;
  padding: 32px;
  border: 1px solid #eef1f4;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.08);
}

.about-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.about-stat-item {
  background: #f8f9fb;
  border: 1px solid #eef1f4;
  border-radius: 18px;
  padding: 20px 16px;
  text-align: center;
}

.about-stat-item strong {
  display: block;
  font-size: 1.55rem;
  line-height: 1.2;
  color: #0d6efd;
  font-weight: 800;
}

.about-stat-item span {
  display: block;
  margin-top: 6px;
  color: #6c757d;
  font-size: 0.95rem;
}

.about-hero-side-note {
  color: #6c757d;
  line-height: 1.8;
}

.about-section-block {
  padding: 80px 0;
}

.about-section-light {
  background: #f8f9fb;
}

.about-section-heading {
  max-width: 760px;
  margin: 0 auto 44px;
}

.about-section-heading h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: #212529;
}

.about-section-heading p {
  color: #6c757d;
  margin-bottom: 0;
  line-height: 1.9;
}

.about-section-kicker {
  display: inline-block;
  color: #0d6efd;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.about-section-kicker-white {
  color: rgba(255, 255, 255, 0.88);
}

.about-info-card,
.about-feature-card,
.about-pillar-card,
.about-partner-card,
.about-service-card,
.about-master-card,
.about-stat-card {
  background: #ffffff;
  border-radius: 24px;
  border: 1px solid #eef1f4;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.06);
}

.about-info-card,
.about-feature-card,
.about-pillar-card,
.about-partner-card,
.about-service-card {
  padding: 28px 24px;
}

.about-info-card h3,
.about-feature-card h3,
.about-pillar-card h3,
.about-partner-card h3,
.about-service-card h3,
.about-master-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #212529;
}

.about-info-card p,
.about-feature-card p,
.about-pillar-card p,
.about-partner-card p,
.about-service-card p,
.about-content-block p,
.about-master-card p {
  color: #6c757d;
  line-height: 1.85;
  margin-bottom: 0;
}

.about-info-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #eaf3ff;
  color: #0d6efd;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 18px;
}

.about-content-block h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #212529;
}

.about-content-block p {
  margin-bottom: 14px;
}

.about-master-card {
  padding: 32px 28px;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
}

.about-master-list {
  padding-left: 1.1rem;
  margin-bottom: 0;
}

.about-master-list li {
  color: #495057;
  line-height: 1.85;
  margin-bottom: 10px;
}

.about-master-list li:last-child {
  margin-bottom: 0;
}

.about-pillar-tag {
  display: inline-block;
  margin-bottom: 16px;
  background: #fff4d6;
  color: #9a6700;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 7px 12px;
  border-radius: 999px;
}

.about-stat-box {
  margin-bottom: 28px;
}

.about-stat-card {
  padding: 28px 16px;
  text-align: center;
}

.about-stat-card strong {
  display: block;
  font-size: 2rem;
  line-height: 1.2;
  color: #0d6efd;
  font-weight: 800;
}

.about-stat-card span {
  color: #6c757d;
  font-weight: 600;
}

.about-service-card ul {
  padding-left: 1.15rem;
  margin: 0;
}

.about-service-card li {
  color: #495057;
  line-height: 1.85;
  margin-bottom: 10px;
}

.about-service-card li:last-child {
  margin-bottom: 0;
}

.about-contact-section {
  padding: 0 0 80px;
}

.about-contact-box {
  background: linear-gradient(135deg, #0073c0 0%, #0d6efd 100%);
  color: #ffffff;
  border-radius: 28px;
  padding: 48px 40px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.12);
}

.about-contact-box h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.about-contact-box p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.9;
}

.about-contact-action-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-contact-action-group .btn {
  border-radius: 12px;
  font-weight: 600;
  padding: 14px 18px;
}

@media (max-width: 991.98px) {
  .about-hero-section {
    padding: 72px 0 60px;
  }

  .about-section-block {
    padding: 68px 0;
  }

  .about-contact-box {
    padding: 36px 24px;
  }
}

@media (max-width: 767.98px) {
  .about-page-title {
    font-size: 1.9rem;
  }

  .about-page-desc {
    font-size: 1rem;
  }

  .about-section-heading h2,
  .about-content-block h2,
  .about-contact-box h2 {
    font-size: 1.6rem;
  }

  .about-hero-btn-group .btn {
    width: 100%;
  }

  .about-stat-grid {
    grid-template-columns: 1fr 1fr;
  }

  .about-hero-side-inner {
    padding: 24px 18px;
  }
}

/* =========================
   合作單位名錄 Partner Directory
========================= */
.about-partner-directory {
  margin-top: 32px;
  padding: 40px 32px;
  background: #ffffff;
  border-radius: 24px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.about-section-kicker {
  display: inline-block;
  margin-bottom: 10px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #2563eb;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 999px;
}

.about-partner-directory h2 {
  margin-bottom: 10px;
  font-size: 32px;
  font-weight: 700;
  color: #0f172a;
}

.about-partner-directory p {
  margin-bottom: 0;
  font-size: 16px;
  color: #64748b;
  line-height: 1.8;
}

/* Tab */
.partner-tabs {
  gap: 12px;
  border-bottom: 0;
}

.partner-tabs .nav-link {
  padding: 10px 20px;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #fff;
  color: #475569;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.25s ease;
}

.partner-tabs .nav-link:hover {
  color: #2563eb;
  border-color: rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.04);
}

.partner-tabs .nav-link.active {
  color: #fff;
  background: #2563eb;
  border-color: #2563eb;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.18);
}

/* Panel */
.partner-panel-card,
.partner-accordion .accordion-item {
  background: #fff;
  border: 1px solid #e8edf5;
  border-radius: 20px !important;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}

.partner-accordion {
  display: grid;
  gap: 16px;
}

.partner-accordion .accordion-item + .accordion-item {
  margin-top: 0;
}

.partner-accordion .accordion-header {
  margin: 0;
}

.partner-accordion .accordion-button {
  padding: 20px 24px;
  font-size: 17px;
  font-weight: 700;
  color: #0f172a;
  background: #fff;
  box-shadow: none;
  border: 0;
}

.partner-accordion .accordion-button:not(.collapsed) {
  color: #2563eb;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.06), rgba(37, 99, 235, 0.02));
  box-shadow: none;
}

.partner-accordion .accordion-button:focus {
  box-shadow: none;
  border: 0;
}

.partner-accordion .accordion-button::after {
  transform: scale(0.9);
}

.partner-accordion .accordion-body,
.partner-panel-card {
  padding: 22px 24px 24px;
}

/* List */
.partner-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.partner-list li {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: #334155;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.partner-list li:hover {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #1d4ed8;
}

/* 預設只顯示部分項目 */
.partner-list-limited li:nth-child(n+13) {
  display: none;
}

.partner-list-limited.is-expanded li:nth-child(n+13) {
  display: inline-flex;
}

/* 展開按鈕 */
.partner-more-btn {
  margin-top: 18px;
  padding: 10px 18px;
  border: 0;
  border-radius: 999px;
  background: #0f172a;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  transition: all 0.25s ease;
}

.partner-more-btn:hover {
  background: #2563eb;
}

/* 空間 */
#partnerTabContent > .tab-pane {
  margin-top: 8px;
}

/* 響應式 */
@media (max-width: 991px) {
  .about-partner-directory {
    padding: 32px 20px;
    border-radius: 20px;
  }

  .about-partner-directory h2 {
    font-size: 28px;
  }

  .partner-tabs {
    gap: 10px;
  }

  .partner-tabs .nav-link {
    padding: 9px 16px;
    font-size: 14px;
  }

  .partner-accordion .accordion-button {
    padding: 18px 18px;
    font-size: 16px;
  }

  .partner-accordion .accordion-body,
  .partner-panel-card {
    padding: 18px;
  }

  .partner-list {
    gap: 10px;
  }

  .partner-list li {
    font-size: 14px;
    padding: 9px 14px;
  }
}

@media (max-width: 576px) {
  .about-partner-directory {
    padding: 28px 16px;
  }

  .about-partner-directory h2 {
    font-size: 24px;
  }

  .about-partner-directory p {
    font-size: 15px;
  }

  .partner-tabs {
    justify-content: flex-start !important;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 6px;
  }

  .partner-tabs .nav-item {
    flex: 0 0 auto;
  }

  .partner-tabs .nav-link {
    white-space: nowrap;
  }

  .partner-list {
    gap: 8px;
  }

  .partner-list li {
    width: 100%;
    justify-content: flex-start;
    border-radius: 14px;
  }

  .partner-more-btn {
    width: 100%;
    justify-content: center;
  }
}