/* ===== About Page ===== */

.about-page {
  background: #000;
}

/* Language switch KR | EN */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;

}

.lang-option {
  color: var(--text-muted);
}

.lang-option.active,
.lang-option:hover {
  color: var(--text-primary);
}

.lang-divider {
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* Hero */
.about-hero {
  padding: 4rem 0 4rem;
  text-align: center;
}

.about-hero-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.about-hero-sub {
  color: var(--text-secondary);

  font-weight: 300;
  max-width: 480px;
}

/* Corporate Introduction */
.intro-section {
  padding: 3rem 0 5rem;
}

.intro-heading {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.intro-content {

}

.intro-content p {
  color: var(--text-secondary);

  font-weight: 300;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.intro-content p:last-child {
  margin-bottom: 0;
}

/* Section badge pill */
.section-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.35rem 1rem;
}

/* ===== Milestone Grid ===== */
.evolution-section {
  padding: 4rem 0 3.5rem;
}

.milestone-grid-wrap {
  position: relative;
  margin: 0 auto;
  isolation: isolate;
}

.milestone-grid-wrap .values-glow {
  width: min(520px, 84vw);
  height: min(460px, 72vw);
}

.milestone-grid {
  position: relative;
  z-index: 1;
}

.milestone-card {
  position: relative;
  z-index: 1;
  height: 100%;
  padding: 1.35rem 1.4rem 1.5rem;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(32, 32, 38, 0.96) 0%, rgba(16, 16, 20, 0.98) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.35);
}

.milestone-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.milestone-year {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--blue-light);
  line-height: 1;
}

.milestone-check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-primary);
  color: #fff;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.milestone-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.92rem;
  line-height: 1.55;
}

@media (max-width: 767.98px) {
  .milestone-card {
    padding: 1.15rem 1.2rem 1.3rem;
  }

  .milestone-year {
    font-size: 1.45rem;
  }
}

/* ===== Timeline (legacy) ===== */

.timeline-scroll {
  position: relative;
}

.timeline-stage {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 0;
  background: #000;
  overflow: visible;
}

.timeline-wrapper {
  position: relative;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  height: min(1300px, calc(100vh - 3rem));
  min-height: 780px;
  overflow: visible;
}

.timeline-curve {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

#timelinePath {
  vector-effect: non-scaling-stroke;
  will-change: stroke-dashoffset;
}

.timeline-path-track {
  vector-effect: non-scaling-stroke;
  opacity: 0.85;
}

.timeline-item {
  position: absolute;
  top: var(--item-top);
  display: flex;
  align-items: center;
  z-index: 1;
  max-width: 46%;
  will-change: transform;
}

@media (min-width: 768px) {
  .evolution-section .timeline-item {
    max-width: min(46%, 400px);
  }
}

.timeline-item--text-right {
  left: 6%;
  flex-direction: row;
}

.timeline-item--text-right .timeline-content {
  text-align: left;
}

.timeline-item--text-left {
  right: 6%;
  flex-direction: row;
  justify-content: flex-end;
}

.timeline-item--text-left .timeline-content {
  text-align: right;
}

.timeline-item--align-right.timeline-item--text-right {
  left: auto;
  right: auto;
}

.timeline-item--align-right.timeline-item--text-left {
  left: auto;
  right: auto;
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  flex-shrink: 0;
  margin: 0 0.65rem;
}

.timeline-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.45);
  flex-shrink: 0;
  position: relative;
  z-index: 2;
  opacity: 1;
  transform: scale(1);
}

.timeline-connector {
  width: 2px;
  height: 58px;
  flex-shrink: 0;
  margin: 0;
  opacity: 1;
  transform: scaleY(1);
  transform-origin: top center;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(0, 82, 255, 0.28) 10%,
    rgba(0, 82, 255, 0.55) 24%,
    #0052ff 40%,
    #0052ff 60%,
    rgba(0, 82, 255, 0.55) 76%,
    rgba(0, 82, 255, 0.28) 90%,
    transparent 100%
  );
  box-shadow: 0 0 12px rgba(0, 82, 255, 0.35);
}

.timeline-content {
  padding: 0.15rem 0;
  max-width: 333px;
  opacity: 1;
  transform: translateY(0);
}

/* 动效模式：默认隐藏，由 JS 设置 --reveal 后显现 */
.evolution-section.is-animating .timeline-item {
  --reveal: 0;
}

.evolution-section.is-animating .timeline-dot {
  opacity: var(--reveal, 0);
  transform: scale(var(--reveal, 0));
}

.evolution-section.is-animating .timeline-connector {
  opacity: var(--reveal, 0);
  transform: scaleY(var(--reveal, 0));
}

.evolution-section.is-animating .timeline-content {
  opacity: var(--reveal, 0);
  transform: translateY(calc(28px * (1 - var(--reveal, 0))));
}

.timeline-year {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 600;
  color: var(--blue-primary);
  margin-bottom: 0.45rem;
  line-height: 1;
}

.timeline-item--text-left .timeline-year {
  justify-content: flex-end;
}

.timeline-plus {
  font-weight: 600;
  color: var(--blue-primary);
}

.timeline-content p {
  color: rgba(255, 255, 255, 0.82);

  font-weight: 300;
  line-height: 1.65;
  margin: 0;
}

.timeline-static .timeline-dot,
.timeline-item.is-visible .timeline-dot {
  opacity: 1;
  transform: scale(1);
}

.timeline-static .timeline-connector,
.timeline-item.is-visible .timeline-connector {
  opacity: 1;
  transform: scaleY(1);
}

.timeline-static .timeline-content,
.timeline-item.is-visible .timeline-content {
  opacity: 1;
  transform: translateY(0);
}

.timeline-static #timelinePath {
  stroke-dashoffset: 0 !important;
}

@media (prefers-reduced-motion: reduce) {
  .timeline-stage {
    min-height: auto;
  }

  .timeline-wrapper {
    height: auto;
    min-height: 1300px;
  }

  .timeline-dot,
  .timeline-connector,
  .timeline-content {
    transform: none;
    opacity: 1;
  }

  #timelinePath {
    stroke-dasharray: none !important;
    stroke-dashoffset: 0 !important;
  }
}

@media (max-width: 767.98px) {
  .timeline-stage {
    min-height: auto;
    padding: 0;
    background: transparent;
  }

  .timeline-wrapper {
    height: auto;
    min-height: auto;
    padding-left: 1.5rem;
    padding-top: 0.5rem;
  }

  .timeline-curve {
    left: 0;
    width: 80px;
    opacity: 0.45;
  }

  .timeline-item {
    position: relative;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    max-width: none;
    width: 100%;
    margin-bottom: 2.75rem;
    padding-left: 2.5rem;
    flex-direction: row !important;
    justify-content: flex-start !important;
  }

  .timeline-item--text-left {
    flex-direction: row-reverse !important;
  }

  .timeline-item--text-left .timeline-content {
    text-align: left;
  }

  .timeline-item--text-left .timeline-year {
    justify-content: flex-start;
  }

  .timeline-content {
    max-width: none;
    flex: 1;
  }

  .timeline-connector {
    position: absolute;
    left: 11px;
    top: -1.5rem;
    height: calc(100% + 2.75rem);
    margin: 0;
  }

  .timeline-item:first-child .timeline-connector {
    top: 50%;
    height: calc(50% + 2.75rem);
  }

  .timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    margin: 0;
    width: 24px;
  }

  .timeline-dot {
    position: absolute;
    left: 11px;
    bottom: 0;
    transform: translateX(-50%);
  }
}

/* ===== Team ===== */
.team-section {
  padding: 5rem 0;
}

.team-card {
  background: #141414;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 0;
  text-align: left;
  height: 100%;
  overflow: hidden;
  transition: border-color 0.25s;
}

.team-card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.team-avatar {
  width: 100%;
  aspect-ratio: 1 / 1;
  margin: 0;
  border-radius: 0;
  overflow: hidden;
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.team-meta {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  padding: 1rem 0.9rem 0.4rem;
}

.team-name {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
}

.team-role {

  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  margin: 0;
}

.team-bio {

  color: rgba(255, 255, 255, 0.42);
  font-weight: 300;
  line-height: 1.6;
  margin: 0;
  padding: 0 0.9rem 1.15rem;
}

@media (max-width: 575.98px) {
  .team-meta {
    padding: 0.85rem 0.75rem 0.35rem;
  }

  .team-bio {
    padding: 0 0.75rem 1rem;

  }
}

/* ===== Core Values ===== */
.values-about-section {
  position: relative;
  padding: 5rem 0 6rem;
  overflow: visible;
}

.values-grid-wrap {
  position: relative;
  isolation: isolate;
}

.values-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(440px, 78vw);
  height: min(340px, 56vw);
  background: radial-gradient(
    ellipse 52% 52% at 50% 50%,
    rgba(1, 0, 127, 1) 0%,
    rgba(0, 82, 255, 0.38) 36%,
    rgba(0, 82, 255, 0.12) 52%,
    transparent 68%
  );
  filter: blur(38px);
  pointer-events: none;
  z-index: 2;
  mix-blend-mode: screen;
}

.values-grid {
  position: relative;
  z-index: 1;
}

.value-card {
  position: relative;
  z-index: 1;
  background: rgba(20, 20, 25, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.75rem 1.5rem;
  height: 100%;
  transition: border-color 0.25s;
}

.value-card:hover {
  border-color: rgba(0, 82, 255, 0.22);
}

.value-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.value-card p {
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 300;
  line-height: 1.7;
  margin: 0;
}

/* ===== About Footer ===== */
.about-footer .footer-social {
  display: flex;
  gap: 1rem;
}

.about-footer .footer-social a {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.about-footer .footer-social a:hover {
  color: var(--blue-light);
}

.footer-legal-inline {
  display: flex;
  gap: 1.25rem;
}

.footer-legal-inline a {
  color: var(--text-muted);

}

.footer-legal-inline a:hover {
  color: var(--text-secondary);
}

.about-footer .footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);

  color: var(--text-muted);
}