/* =========================================================
   investor-information-security.css
   用途：資訊安全風險管理（about_information_security.aspx）
   作用範圍：.investor-security-page .investor-security-content
========================================================= */

.investor-security-content {
  --primary: var(--inv-primary, #0c596f);
}

.investor-security-content .info-policy-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
  gap: 40px;
}

.investor-security-content .info-policy-desc {
  max-width: 1000px;
  line-height: 1.8;
  font-size: 15px;
  color: var(--inv-text, #1a3040);
}

.investor-security-content .policy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.investor-security-content .policy-flip-card {
  width: 100%;
  height: 400px;
  perspective: 1000px;
  position: relative;
}

.investor-security-content .policy-flip-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.investor-security-content .policy-flip-card:hover .policy-flip-inner {
  transform: rotateY(180deg);
}

.investor-security-content .policy-flip-front,
.investor-security-content .policy-flip-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 12px;
  padding: 28px 22px;
  border: 1px solid #e2e2e2;
  background: #fff;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  transition: 0.35s ease;
}

.investor-security-content .policy-flip-front {
  background: #f5f5f5 !important;
  border-color: #dadada !important;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.investor-security-content .policy-flip-card:hover .policy-flip-front {
  transform: translateY(-6px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.investor-security-content .policy-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  border: 2px solid var(--inv-primary, #0c596f);
  background: #eef6ff;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 18px;
  transition: transform 0.35s ease, background 0.35s ease;
}

.investor-security-content .policy-icon i {
  font-size: 32px;
  color: var(--inv-primary, #0c596f);
}

.investor-security-content .policy-flip-card:hover .policy-icon {
  transform: scale(1.12);
  background: #d9ebff;
}

.investor-security-content .policy-flip-back {
  transform: rotateY(180deg);
  background: #eaf4ff;
  border-color: #bcd6ff;
  display: flex;
  justify-content: center;
  align-items: center;
}

.investor-security-content .policy-flip-back p {
  font-size: 15px;
  line-height: 1.8;
}

.investor-security-content .cause-block {
  position: relative;
  padding: 15px 0;
  margin-top: 15px;
}

.investor-security-content .cause-block::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: #ccc;
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
}

.investor-security-content .cause-botton {
  border: none;
  box-shadow: none;
  padding: 15px 0;
  margin-top: 15px;
  background: none;
}

.investor-security-content .security-plan-row1 {
  max-width: 1100px;
  margin: 0 auto 25px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px 35px;
  justify-items: center;
}

.investor-security-content .security-plan-row2 {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 35px;
  justify-items: center;
}

.investor-security-content .security-card {
  width: 100%;
  max-width: 300px;
  background: #fff;
  border-radius: 16px;
  border-left: 6px solid var(--inv-accent, #19a7b8);
  padding: 28px 22px;
  text-align: center;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  transition: 0.25s;
}

.investor-security-content .security-card:hover {
  transform: translateY(-6px);
}

.investor-security-content .security-card .card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--inv-primary, #0c596f);
  margin: 0;
  line-height: 1.5;
}

.investor-security-content .info-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: 1100px;
  margin: 40px auto;
  background: var(--inv-bg-light, #f5f8fa);
  padding: 40px;
  border-radius: 14px;
}

.investor-security-content .info-two-col h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--inv-primary, #0c596f);
}

.investor-security-content .info-left p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--inv-text, #1a3040);
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 4px solid var(--inv-accent, #19a7b8);
}

.investor-security-content .timeline {
  border-left: 3px solid var(--inv-accent, #19a7b8);
  padding-left: 20px;
}

.investor-security-content .timeline-item {
  position: relative;
  margin-bottom: 25px;
}

.investor-security-content .timeline-item .dot {
  width: 14px;
  height: 14px;
  background: var(--inv-accent, #19a7b8);
  border-radius: 50%;
  position: absolute;
  left: -29px;
  top: 5px;
}

.investor-security-content .timeline-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--inv-primary, #0c596f);
}

.investor-security-content .timeline-item p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--inv-text, #1a3040);
}

.investor-security-content .csr-card {
  background: #ffffff;
  border-radius: 1rem;
  padding: 1.5rem 1.75rem;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
  border: 1px solid rgba(226, 232, 240, 0.9);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.investor-security-content .csr-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
  border-color: rgba(25, 167, 184, 0.7);
}

.investor-security-content .csr-img-main {
  border-radius: 0.75rem;
}

@media (max-width: 767.98px) {
  .investor-security-content .info-policy-top {
    flex-direction: column;
    gap: 20px;
  }

  .investor-security-content .policy-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .investor-security-content .security-plan-row1,
  .investor-security-content .security-plan-row2 {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .investor-security-content .security-card {
    max-width: none;
  }

  .investor-security-content .info-two-col {
    grid-template-columns: 1fr;
    padding: 24px;
    gap: 20px;
  }

  .investor-security-content .timeline {
    padding-left: 16px;
  }

  .investor-security-content .timeline-item .dot {
    left: -22px;
  }

  .investor-security-content .csr-card {
    padding: 1.25rem;
  }
}