.puainta-about-timeline {
  --about-bg: rgb(var(--color-background));
  --about-text: rgb(var(--color-text));
  --about-muted: rgb(var(--color-light-text));
  --about-line: rgb(var(--color-entry-line));
  --about-accent: rgb(var(--color-button-background));
  --about-accent-text: rgb(var(--color-button-text));
  --about-card: rgb(var(--color-media-background));
  position: relative;
  overflow: hidden;
  color: var(--about-text);
  background: var(--about-bg);
}
.puainta-about-timeline::before { position: absolute; top: 8%; left: -70px; width: 240px; height: 240px; background: color-mix(in srgb, var(--about-accent) 12%, var(--about-bg)); border-radius: 42% 58% 55% 45%; opacity: .45; content: ""; }
.puainta-about-timeline *,
.puainta-about-timeline *::before,
.puainta-about-timeline *::after { box-sizing: border-box; }
.puainta-about-timeline__inner {
  max-width: var(--about-content-width, 1180px);
  margin-inline: auto;
  padding-block: var(--about-space-top, 108px) var(--about-space-bottom, 108px);
}
.puainta-about-timeline__lead { display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, .7fr); gap: clamp(40px, 6vw, 88px); align-items: center; }
.puainta-about-timeline__header { max-width: 780px; margin: 0; text-align: left; }
.puainta-about-timeline__header > p {
  margin: 0 0 14px;
  color: var(--about-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
}
.puainta-about-timeline__header h2 {
  margin: 0;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-size: clamp(38px, 4.5vw, var(--about-heading-size, 58px));
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.035em;
  white-space: pre-line;
}
.puainta-about-timeline__header > span {
  display: block;
  max-width: 44em;
  margin: 20px 0 0;
  color: var(--about-muted);
  font-size: 16px;
  line-height: 1.85;
}
.puainta-about-timeline__media { position: relative; min-height: 360px; overflow: hidden; border-radius: 28px; box-shadow: 0 24px 64px color-mix(in srgb, var(--about-text) 14%, transparent); }
.puainta-about-timeline__lead-image,
.puainta-about-timeline__media > img { display: block; width: 100%; height: 100%; min-height: 360px; object-fit: cover; object-position: center; }
.puainta-about-timeline__media > span { position: absolute; right: 16px; bottom: 16px; max-width: calc(100% - 32px); padding: 9px 13px; color: white; background: rgb(35 28 24 / 68%); border: 1px solid rgb(255 255 255 / 32%); border-radius: 999px; font-size: 9px; font-weight: 750; letter-spacing: .12em; backdrop-filter: blur(8px); }
.puainta-about-timeline__list {
  position: relative;
  display: grid;
  gap: 34px;
  margin: 72px 0 0;
  padding: 0;
  list-style: none;
}
.puainta-about-timeline__list::before {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 50%;
  width: 2px;
  background: linear-gradient(var(--about-accent), color-mix(in srgb, var(--about-accent) 18%, transparent));
  transform: translateX(-50%);
  content: "";
}
.puainta-about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 78px minmax(0, 1fr);
  align-items: center;
  min-height: 190px;
}
.puainta-about-timeline__node {
  position: relative;
  z-index: 2;
  grid-column: 2;
  grid-row: 1;
  justify-self: center;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: var(--about-accent-text);
  background: var(--about-accent);
  border: 4px solid var(--about-bg);
  border-radius: 50%;
  box-shadow: 0 0 0 7px color-mix(in srgb, var(--about-accent) 14%, transparent);
}
.puainta-about-timeline__node::after { font-size: 11px; content: "♥"; }
.puainta-about-timeline__card {
  position: relative;
  grid-column: 1;
  padding: 30px 32px;
  background: var(--about-card);
  border: 1px solid color-mix(in srgb, var(--about-accent) 18%, var(--about-line));
  border-radius: 22px;
  box-shadow: 0 18px 45px rgb(101 57 34 / 8%);
}
.puainta-about-timeline__item:nth-child(even) .puainta-about-timeline__card { grid-column: 3; }
.puainta-about-timeline__year {
  display: inline-flex;
  align-items: center;
  min-height: 31px;
  padding: 4px 13px;
  color: var(--about-accent-text);
  background: var(--about-accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}
.puainta-about-timeline__card h3 {
  margin: 17px 0 0;
  font-family: "Noto Sans TC", "PingFang TC", sans-serif;
  font-size: 24px;
  font-weight: 800;
  line-height: 1.42;
  letter-spacing: -.01em;
}
.puainta-about-timeline__card p { margin: 13px 0 0; color: var(--about-muted); font-size: 14px; line-height: 1.9; }
.puainta-about-timeline__image { display: block; width: 100%; margin-top: 20px; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 13px; }

@media (max-width: 749px) {
  .puainta-about-timeline__inner { padding-block: var(--about-mobile-space-top, 56px) var(--about-mobile-space-bottom, 56px); }
  .puainta-about-timeline__lead { grid-template-columns: 1fr; gap: 28px; }
  .puainta-about-timeline__header { text-align: left; }
  .puainta-about-timeline__header h2 { font-size: 31px; line-height: 1.32; }
  .puainta-about-timeline__header > span { margin-top: 15px; font-size: 14px; line-height: 1.75; }
  .puainta-about-timeline__media,
  .puainta-about-timeline__lead-image,
  .puainta-about-timeline__media > img { min-height: 0; height: 230px; border-radius: 18px; }
  .puainta-about-timeline__list { gap: 18px; margin-top: 34px; }
  .puainta-about-timeline__list::before { left: 10px; transform: none; }
  .puainta-about-timeline__item { grid-template-columns: 30px minmax(0, 1fr); min-height: 0; align-items: start; }
  .puainta-about-timeline__node { grid-column: 1; width: 18px; height: 18px; margin-top: 25px; border-width: 3px; box-shadow: 0 0 0 5px color-mix(in srgb, var(--about-accent) 12%, transparent); }
  .puainta-about-timeline__node::after { font-size: 7px; }
  .puainta-about-timeline__card,
  .puainta-about-timeline__item:nth-child(even) .puainta-about-timeline__card { grid-column: 2; padding: 22px 20px; border-radius: 15px; }
  .puainta-about-timeline__year { min-height: 27px; padding-inline: 11px; font-size: 12px; }
  .puainta-about-timeline__card h3 { margin-top: 13px; font-size: 19px; }
  .puainta-about-timeline__card p { margin-top: 9px; font-size: 13px; line-height: 1.72; }
}

@media (prefers-reduced-motion: reduce) {
  .puainta-about-timeline * { scroll-behavior: auto !important; }
}