#about-us,
#about-motivation,
#about-expectation,
#about-social,
#about-roadmap,
#about-timeline {
  scroll-margin-top: 110px;
}

.about-page-main {
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
  padding-top: 120px;
  padding-bottom: 48px;
}

.about-page .about-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 28px;
  align-items: stretch;
  margin: 10px auto 28px;
  padding: 42px;
  border-radius: 36px;
  background:
    radial-gradient(circle at top right, rgba(124, 206, 231, 0.28), transparent 28%),
    linear-gradient(135deg, #ffffff 0%, #eefaff 52%, #e4f7ff 100%);
  border: 1px solid rgba(170, 210, 225, 0.55);
  box-shadow: 0 24px 60px rgba(70, 140, 165, 0.14);
  overflow: hidden;
}

.about-page .about-hero::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -48px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(137, 212, 235, 0.18);
}

.about-page .about-hero-copy,
.about-page .about-hero-panel {
  position: relative;
  z-index: 1;
}

.about-page .about-kicker {
  margin: 0 0 12px;
  color: #2b7187;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 2px;
}

.about-page .about-hero h2 {
  margin: 0;
  max-width: 11ch;
  font-family: "Helvetica", "Arial", sans-serif;
  font-size: clamp(28px, 3.8vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 0.5px;
  color: #0b143f;
}

.about-page .about-hero h2 br {
  display: none;
}

.about-page .about-lead {
  margin: 20px 0 0;
  max-width: 34ch;
  color: #44606c;
  font-size: 18px;
  line-height: 1.9;
  text-align: justify;
  text-justify: inter-ideograph;
}

.about-page .about-hero-panel {
  display: grid;
  gap: 16px;
  align-content: center;
}

.about-page .about-highlight {
  padding: 24px 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(146, 201, 220, 0.45);
  box-shadow: 0 14px 34px rgba(70, 140, 165, 0.1);
}

.about-page .about-highlight span {
  display: block;
  margin-bottom: 8px;
  color: #568092;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.about-page .about-highlight strong {
  display: block;
  color: #14324c;
  font-size: 24px;
  line-height: 1.45;
}

.about-page .about-story-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 24px;
  align-items: start;
}

.about-page .about-card {
  padding: 34px 32px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(170, 210, 225, 0.55);
  box-shadow: 0 18px 40px rgba(70, 140, 165, 0.12);
}

.about-page .about-card-label {
  margin: 0 0 12px;
  color: #4b8195;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  text-align: left;
}

.about-page .about-subheading {
  margin: 0 0 14px;
  max-width: none;
  font-size: 28px;
  text-align: left;
}

.about-page .about-card p {
  margin: 0 0 14px;
  max-width: none;
  color: #3e5e6a;
  font-size: 17px;
  line-height: 1.95;
  text-align: justify;
  text-justify: inter-ideograph;
}

.about-page .about-card p:last-child {
  margin-bottom: 0;
}

.about-page .about-card-wide {
  min-height: 100%;
}

.about-page .about-card-full {
  grid-column: 1 / -1;
}

.about-page .about-card br {
  display: none;
}

/* ===== 關於我們：品牌時間線 ===== */
#about-timeline {
  text-align: center;
}

#about-timeline .about-timeline-intro {
  margin: 0 auto 28px;
  max-width: 40ch;
  color: #5f747b;
  font-size: 17px;
  line-height: 1.8;
  text-align: center;
}

#about-timeline .timeline-list {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  display: block;
  padding: 8px 0;
  list-style: none;
}

#about-timeline .timeline-list::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: linear-gradient(180deg, #9bd7f5, #5bbfd3);
  transform: translateX(-50%);
  border-radius: 999px;
}

#about-timeline .timeline-item {
  position: relative;
  width: 50%;
  padding: 0 44px 56px;
  margin: 0;
  display: block;
  opacity: 0;
  animation: timeline-fade-up 0.62s ease forwards;
}

#about-timeline .timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

#about-timeline .timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

#about-timeline .timeline-item:nth-child(1) {
  animation-delay: 0.04s;
}

#about-timeline .timeline-item:nth-child(2) {
  animation-delay: 0.1s;
}

#about-timeline .timeline-item:nth-child(3) {
  animation-delay: 0.16s;
}

#about-timeline .timeline-item:nth-child(4) {
  animation-delay: 0.22s;
}

#about-timeline .timeline-item:nth-child(5) {
  animation-delay: 0.28s;
}

#about-timeline .timeline-item::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 18px;
  height: 18px;
  background: #5bbfd3;
  border: 6px solid #dff6ff;
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(91, 191, 211, 0.14);
  transform: translateX(-50%);
  z-index: 2;
}

#about-timeline .timeline-item::after {
  content: "";
  position: absolute;
  top: 19px;
  width: 26px;
  height: 1px;
  background: rgba(91, 191, 211, 0.58);
}

#about-timeline .timeline-item:nth-child(odd)::before {
  left: 100%;
}

#about-timeline .timeline-item:nth-child(odd)::after {
  right: 0;
}

#about-timeline .timeline-item:nth-child(even)::before {
  left: 0;
}

#about-timeline .timeline-item:nth-child(even)::after {
  left: 0;
}

#about-timeline .timeline-item time {
  display: block;
  margin-bottom: 12px;
  color: #1b6f86;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.3px;
}

#about-timeline .timeline-item p {
  margin: 0;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(155, 215, 245, 0.8);
  border-radius: 24px;
  padding: 24px 28px;
  box-shadow: 0 18px 45px rgba(80, 160, 180, 0.12);
  transition: 0.3s ease;
  color: #3f5f6b;
  font-size: 16px;
  line-height: 1.78;
}

#about-timeline .timeline-item:hover p {
  transform: translateY(-6px);
  box-shadow: 0 26px 60px rgba(80, 160, 180, 0.2);
}

@keyframes timeline-fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 關於我們：社會議題 ===== */
.sdg-section {
  text-align: left;
}

.sdg-section h2 {
  margin: 0;
  color: #0b143f;
  font-size: clamp(28px, 3.2vw, 38px);
  line-height: 1.2;
}

.sdg-subtitle {
  margin: 12px 0 26px;
  max-width: 40ch;
  color: #5a7280;
  font-size: 17px;
  line-height: 1.82;
}

.sdg-card {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 22px;
  margin-bottom: 16px;
  border-radius: 22px;
  background: linear-gradient(160deg, #ffffff 0%, #eefaff 100%);
  border: 1px solid rgba(160, 216, 233, 0.72);
  box-shadow: 0 14px 34px rgba(70, 140, 165, 0.12);
}

.sdg-card:last-child {
  margin-bottom: 0;
}

.sdg-card img {
  width: 84px;
  height: 84px;
  border-radius: 18px;
  object-fit: cover;
  background: #ffffff;
  border: 1px solid rgba(155, 215, 245, 0.7);
}

.sdg-card h3 {
  margin: 2px 0 8px;
  color: #0d3150;
  font-size: 22px;
  line-height: 1.35;
}

.sdg-card p {
  margin: 0;
  color: #456372;
  font-size: 16px;
  line-height: 1.82;
}

@media (min-width: 768px) {
  .about-page .about-hero h2 br,
  .about-page .about-card br {
    display: inline;
  }
}

/* 手機版 */
@media (max-width: 768px) {
  .about-page-main {
    width: min(100%, calc(100% - 32px));
    padding-top: 136px;
  }

  .about-page .about-hero {
    grid-template-columns: 1fr;
    padding: 28px 22px;
    border-radius: 28px;
    gap: 18px;
  }

  .about-page .about-hero h2 {
    max-width: none;
    font-size: clamp(24px, 7.4vw, 34px);
  }

  .about-page .about-lead {
    max-width: none;
    font-size: 15px;
    line-height: 1.82;
  }

  .about-page .about-highlight {
    padding: 18px 18px;
    border-radius: 20px;
  }

  .about-page .about-highlight strong {
    font-size: 20px;
  }

  .about-page .about-story-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .about-page .about-card {
    padding: 24px 20px;
    border-radius: 24px;
  }

  .about-page .about-subheading {
    font-size: 24px;
    margin-bottom: 10px;
  }

  .about-page .about-card p {
    font-size: 15px;
    line-height: 1.82;
  }

  .sdg-section h2 {
    font-size: clamp(24px, 6.8vw, 32px);
  }

  .sdg-subtitle {
    margin-bottom: 20px;
    max-width: none;
    font-size: 15px;
    line-height: 1.8;
  }

  .sdg-card {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 18px;
    border-radius: 20px;
  }

  .sdg-card img {
    width: 72px;
    height: 72px;
    border-radius: 14px;
  }

  .sdg-card h3 {
    font-size: 20px;
    margin: 0 0 6px;
  }

  .sdg-card p {
    font-size: 15px;
    line-height: 1.78;
  }

  #about-timeline .about-timeline-intro {
    margin-bottom: 24px;
    font-size: 15px;
    line-height: 1.8;
  }

  #about-timeline .timeline-list::before {
    left: 18px;
    transform: none;
  }

  #about-timeline .timeline-item,
  #about-timeline .timeline-item:nth-child(even),
  #about-timeline .timeline-item:nth-child(odd) {
    width: 100%;
    left: 0;
    text-align: left;
    padding: 0 0 46px 52px;
  }

  #about-timeline .timeline-item::before,
  #about-timeline .timeline-item:nth-child(even)::before,
  #about-timeline .timeline-item:nth-child(odd)::before {
    left: 3px;
    right: auto;
    transform: none;
  }

  #about-timeline .timeline-item::after,
  #about-timeline .timeline-item:nth-child(even)::after,
  #about-timeline .timeline-item:nth-child(odd)::after {
    left: 17px;
    right: auto;
    width: 18px;
  }

}