.page-about {
  --paper-ink: #2B2418;
  --paper-ink-soft: #6A604C;
}

/* ============ 首屏 ============ */
.page-about .about-hero {
  padding-top: 1.5rem;
  padding-bottom: 2.25rem;
}

.page-about .about-hero .crumb {
  margin-bottom: 1.6rem;
}

.page-about .about-hero__intro {
  max-width: 46rem;
}

.page-about .about-hero__kicker {
  display: inline-block;
  margin: 0 0 1rem;
  padding: .32rem .75rem;
  font-size: .8125rem;
  letter-spacing: .14em;
  color: var(--amber-soft);
  background: rgba(233, 166, 60, .07);
  border: 1px solid rgba(233, 166, 60, .24);
  border-radius: var(--r-sm);
}

.page-about .about-hero__title {
  margin: 0 0 1.15rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 6.6vw, 3.3rem);
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-about .about-hero__lead {
  max-width: 42rem;
  margin: 0;
}

.page-about .about-hero__media {
  position: relative;
  margin: 2rem 0 0;
}

.page-about .about-hero__media::before,
.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  width: 30px;
  height: 30px;
  pointer-events: none;
}

.page-about .about-hero__media::before {
  left: 9px;
  top: 9px;
  border-left: 2px solid rgba(233, 166, 60, .8);
  border-top: 2px solid rgba(233, 166, 60, .8);
}

.page-about .about-hero__media::after {
  right: 9px;
  bottom: 9px;
  border-right: 2px solid rgba(233, 166, 60, .8);
  border-bottom: 2px solid rgba(233, 166, 60, .8);
}

/* ============ 01 起步 ============ */
.page-about .about-origin {
  align-items: start;
}

.page-about .about-origin__text p {
  margin: 0 0 1.1rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
}

.page-about .about-note {
  margin: 1.3rem 0 0 !important;
  padding-left: .95rem;
  border-left: 2px solid rgba(233, 166, 60, .55);
  font-size: .9375rem !important;
  line-height: 1.75 !important;
  color: var(--muted) !important;
}

.page-about .about-origin__aside {
  padding: 1.4rem 1.45rem;
}

.page-about .about-origin__aside h3 {
  margin: 0 0 .9rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.page-about .about-origin__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .8rem;
}

.page-about .about-origin__list li {
  display: grid;
  grid-template-columns: 8px 1fr;
  gap: .7rem;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-dot {
  width: 6px;
  height: 6px;
  margin-top: .62em;
  border-radius: 50%;
  background: var(--amber);
}

/* ============ 02 时间线 ============ */
.page-about .about-timeline__lead {
  max-width: 44rem;
  margin-bottom: 1.6rem;
}

.page-about .about-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0 0 2.2rem;
}

.page-about .about-jump a {
  display: inline-block;
  padding: .35rem .72rem;
  font-family: var(--font-num);
  font-size: .875rem;
  letter-spacing: .08em;
  color: var(--amber-soft);
  border: 1px solid rgba(233, 166, 60, .3);
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-jump a:hover,
.page-about .about-jump a:focus-visible {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink-900);
}

.page-about .about-timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 34px;
  list-style: none;
  list-style-type: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: .5em;
  bottom: .5em;
  width: 1px;
  background: linear-gradient(180deg, var(--amber) 0%, rgba(233, 166, 60, .3) 55%, var(--line) 100%);
}

.page-about .about-node {
  position: relative;
  padding-bottom: 2.6rem;
}

.page-about .about-node:last-child {
  padding-bottom: 0;
}

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: .5em;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--line);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .about-node.is-in::before {
  background: var(--amber);
  border-color: var(--amber-soft);
  box-shadow: 0 0 0 4px rgba(233, 166, 60, .14);
}

.page-about .about-node__year {
  display: inline-block;
  margin: 0 0 .4rem;
  font-family: var(--font-num);
  font-size: 1.15rem;
  letter-spacing: .1em;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}

.page-about .about-node.is-in .about-node__year {
  color: var(--amber);
}

.page-about .about-node__title {
  margin: 0 0 .5rem;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.page-about .about-node__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 780px) {
  .page-about .about-timeline {
    padding-left: 96px;
  }

  .page-about .about-timeline::before {
    left: 10px;
  }

  .page-about .about-node {
    padding-bottom: 3rem;
  }

  .page-about .about-node::before {
    left: -84px;
  }

  .page-about .about-node__year {
    position: absolute;
    left: -58px;
    top: .15em;
    margin: 0;
    padding: 0;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 1rem;
    letter-spacing: .3em;
    line-height: 1;
  }

  .page-about .about-node__title {
    font-size: 1.25rem;
  }
}

/* ============ 03 团队 ============ */
.page-about .about-team__top {
  align-items: center;
  margin-bottom: 1.4rem;
}

.page-about .about-team__lead p {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
}

.page-about .about-team__media {
  margin: 0;
  width: 100%;
  max-width: 380px;
  justify-self: center;
}

.page-about .about-team {
  display: grid;
  gap: 1.1rem;
  margin-top: 1.6rem;
}

.page-about .about-team__card {
  position: relative;
  padding: 1.5rem 1.35rem 1.35rem;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-team__card:hover,
.page-about .about-team__card:focus-within {
  transform: translateY(-4px) rotate(-.5deg);
  border-color: rgba(233, 166, 60, .42);
  box-shadow: 0 16px 34px rgba(0, 0, 0, .44);
}

.page-about .about-team__count {
  display: flex;
  align-items: baseline;
  gap: .3rem;
  margin: 0 0 .9rem;
  padding-bottom: .85rem;
  border-bottom: 1px solid var(--line);
}

.page-about .about-team__count .num {
  font-family: var(--font-num);
  font-size: 2rem;
  line-height: 1;
  color: var(--amber);
}

.page-about .about-team__unit {
  font-size: .875rem;
  color: var(--muted);
}

.page-about .about-team__name {
  margin: 0 0 .6rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
}

.page-about .about-team__text {
  margin: 0 0 1rem;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-team__foot {
  margin: 0;
  display: inline-block;
  padding: .28rem .62rem;
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--teal-soft);
  background: rgba(47, 182, 161, .1);
  border: 1px solid rgba(47, 182, 161, .3);
  border-radius: var(--r-sm);
}

@media (min-width: 760px) {
  .page-about .about-team {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
    gap: 1.25rem;
  }

  .page-about .about-team__card:nth-child(2) {
    margin-top: 2.2rem;
  }

  .page-about .about-team__card:nth-child(3) {
    margin-top: .9rem;
  }
}

/* ============ 04 阅读顺序 ============ */
.page-about .about-order__lead {
  max-width: 44rem;
  margin-bottom: 1.1rem;
}

.page-about .about-order__text {
  max-width: 46rem;
  margin: 0 0 1.05rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-steps {
  margin: 1.9rem 0 0;
  padding: 0;
  list-style: none;
  list-style-type: none;
  display: grid;
  gap: 1rem;
}

.page-about .about-step {
  padding: 1.4rem 1.3rem 1.35rem;
  border-top: 2px solid var(--teal);
  border-radius: 0 0 var(--r-md) var(--r-md);
  background: linear-gradient(180deg, rgba(47, 182, 161, .08) 0%, rgba(47, 182, 161, 0) 68%);
}

.page-about .about-step__num {
  display: block;
  margin-bottom: .65rem;
  font-family: var(--font-num);
  font-size: 1.55rem;
  line-height: 1;
  letter-spacing: .08em;
  color: var(--teal-soft);
}

.page-about .about-step__title {
  margin: 0 0 .5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.page-about .about-step__body {
  margin: 0 0 1.05rem;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--muted);
}

@media (min-width: 860px) {
  .page-about .about-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

/* ============ 05 天津与深夜 ============ */
.page-about .about-night {
  display: grid;
  gap: 1.6rem;
}

.page-about .about-night__text p {
  margin: 0 0 1.05rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
}

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

.page-about .about-night__panel {
  padding: 1.5rem 1.45rem 1.4rem;
  color: var(--paper-ink);
}

.page-about .about-night__panel h3 {
  margin: 0 0 1.05rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--paper-ink);
}

.page-about .about-night__facts {
  margin: 0;
  display: grid;
  gap: .85rem;
}

.page-about .about-night__facts > div {
  display: grid;
  gap: .2rem;
  padding-bottom: .85rem;
  border-bottom: 1px dashed rgba(43, 36, 24, .24);
}

.page-about .about-night__facts > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-night__facts dt {
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--paper-ink-soft);
}

.page-about .about-night__facts dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 1.35rem;
  line-height: 1.25;
  color: var(--paper-ink);
}

.page-about .about-band {
  margin: 2.4rem 0 0;
  aspect-ratio: 2 / 1;
}

.page-about .about-end {
  display: grid;
  gap: 1rem;
  align-items: center;
  margin-top: 1.9rem;
  padding: 1.5rem 1.4rem;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--r-md);
}

.page-about .about-end__line {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
}

.page-about .about-end__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

@media (min-width: 860px) {
  .page-about .about-night {
    grid-template-columns: 1.25fr .85fr;
    gap: 2.6rem;
    align-items: start;
  }

  .page-about .about-end {
    grid-template-columns: 1fr auto;
    padding: 1.6rem 1.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-team__card,
  .page-about .about-node::before,
  .page-about .about-node__year,
  .page-about .about-jump a {
    transition: none;
  }

  .page-about .about-team__card:hover,
  .page-about .about-team__card:focus-within {
    transform: none;
  }
}