/* ============================================================
   品牌故事 · page-about
   ============================================================ */

.page-about {
  --about-hair: rgba(234, 242, 255, .1);
  --about-hair-soft: rgba(234, 242, 255, .055);
  --about-card: rgba(21, 26, 34, .66);
  --about-radius: 20px;
  background:
    radial-gradient(86% 40% at 88% -4%, rgba(15, 61, 122, .5), transparent 60%),
    var(--cy-night);
  color: var(--cy-ice);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-top: clamp(1rem, 2.8vw, 1.75rem);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(1.75rem, 4.5vw, 3.25rem) 0 clamp(3rem, 7vw, 5.5rem);
  background: radial-gradient(62% 100% at 94% 0%, rgba(34, 211, 238, .11), transparent 62%);
}

.page-about .about-hero__top {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

@media (min-width: 940px) {
  .page-about .about-hero__top {
    grid-template-columns: minmax(0, 1.62fr) minmax(240px, .78fr);
    align-items: end;
  }
}

.page-about .about-hero h1 {
  max-width: 16ch;
  margin: .9rem 0 1.4rem;
  font-size: clamp(2.2rem, 6vw, 4.7rem);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--cy-ice);
  text-wrap: balance;
}

.page-about .about-hero__lead {
  max-width: 48ch;
  font-size: clamp(1rem, .4vw + .92rem, 1.15rem);
  line-height: 1.85;
  color: var(--cy-mist);
}

.page-about .about-hero__aside {
  padding: clamp(1.15rem, 2.6vw, 1.7rem);
  border: 1px solid var(--about-hair);
  border-radius: var(--about-radius);
  background: var(--about-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.page-about .about-hero__note {
  margin: 0 0 1rem;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--cy-mist);
}

.page-about .about-fav {
  width: 100%;
  justify-content: center;
  gap: .55rem;
}

.page-about .about-fav__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cy-cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .16);
  transition: background var(--cy-dur) var(--cy-ease), box-shadow var(--cy-dur) var(--cy-ease);
}

.page-about .about-fav[aria-pressed="true"] .about-fav__dot {
  background: var(--cy-gold);
  box-shadow: 0 0 0 4px rgba(200, 169, 106, .2);
}

/* ---------- 首屏数据 ---------- */
.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: clamp(2.25rem, 5vw, 3.75rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-hair);
}

@media (min-width: 760px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-fact + .about-fact {
    padding-left: clamp(1rem, 2.4vw, 1.8rem);
    border-left: 1px solid var(--about-hair-soft);
  }
}

.page-about .about-fact {
  padding: clamp(1.1rem, 2.6vw, 1.7rem) 1rem clamp(1.1rem, 2.6vw, 1.7rem) 0;
  border-bottom: 1px solid var(--about-hair-soft);
}

.page-about .about-fact__num {
  display: inline-block;
  font-family: var(--cy-font-mono);
  font-size: clamp(1.85rem, 4vw, 2.7rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cy-gold);
}

.page-about .about-fact__unit {
  margin-left: .28rem;
  font-size: .84rem;
  color: var(--cy-mist);
}

.page-about .about-fact__label {
  display: block;
  margin-top: .75rem;
  font-family: var(--cy-font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--cy-mist);
}

/* ---------- 通用轴栏 ---------- */
.page-about .about-rail {
  position: relative;
}

.page-about .about-rail .cy-section__title {
  max-width: 14ch;
  margin: .7rem 0 0;
  font-size: clamp(1.45rem, 2.7vw, 2.1rem);
  font-weight: 500;
  line-height: 1.26;
}

@media (min-width: 940px) {
  .page-about .about-rail {
    position: sticky;
    top: calc(var(--cy-header-h) + 2rem);
  }
}

/* ---------- 品牌坐标 ---------- */
.page-about .about-origin {
  padding: clamp(2.75rem, 7vw, 5.5rem) 0;
}

.page-about .about-origin__grid {
  display: grid;
  gap: clamp(1.5rem, 4.5vw, 3.5rem);
}

@media (min-width: 940px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(200px, 290px) minmax(0, 1fr);
    align-items: start;
  }
}

.page-about .about-origin__media {
  margin: 0 0 clamp(1.5rem, 3.5vw, 2.5rem);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--about-hair);
  border-radius: var(--cy-radius-lg);
  overflow: hidden;
}

.page-about .about-origin__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .about-origin__prose {
  max-width: 70ch;
}

.page-about .about-origin__prose p {
  margin: 0 0 1.2em;
  font-size: var(--cy-body);
  line-height: 1.88;
  color: rgba(234, 242, 255, .82);
}

.page-about .about-quote {
  position: relative;
  margin: clamp(1.5rem, 3.5vw, 2.4rem) 0;
  padding: clamp(1.35rem, 3vw, 2rem) clamp(1.25rem, 3vw, 2.4rem);
  border-left: 2px solid var(--cy-gold);
  border-radius: 0 var(--about-radius) var(--about-radius) 0;
  background: linear-gradient(100deg, rgba(200, 169, 106, .1), rgba(200, 169, 106, 0) 74%);
  overflow: hidden;
}

.page-about .about-quote::before {
  content: "\201C";
  position: absolute;
  top: -.9rem;
  right: clamp(.75rem, 2vw, 1.6rem);
  font-family: var(--cy-font-mono);
  font-size: 5rem;
  line-height: 1;
  color: rgba(200, 169, 106, .2);
  pointer-events: none;
}

.page-about .about-quote p {
  position: relative;
  margin: 0;
  font-size: clamp(1.05rem, 1.9vw, 1.45rem);
  font-weight: 400;
  line-height: 1.62;
  color: var(--cy-ice);
}

/* ---------- 发展历程 ---------- */
.page-about .about-timeline {
  position: relative;
  padding: clamp(2.75rem, 7vw, 5.5rem) 0;
  overflow: hidden;
  border-top: 1px solid var(--about-hair);
  border-bottom: 1px solid var(--about-hair);
  background: var(--cy-carbon);
}

.page-about .about-timeline__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .3;
}

.page-about .about-timeline__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .about-timeline::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(11, 13, 16, .82), rgba(11, 13, 16, .96));
  pointer-events: none;
}

.page-about .about-timeline__inner {
  position: relative;
  z-index: 2;
}

.page-about .about-timeline .cy-section__title {
  margin: .7rem 0 0;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 500;
}

.page-about .about-timeline__sub {
  max-width: 52ch;
  margin: .9rem 0 clamp(2rem, 4.5vw, 3rem);
  font-size: var(--cy-body);
  line-height: 1.85;
  color: var(--cy-mist);
}

.page-about .about-timeline__layout {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 3rem);
}

@media (min-width: 900px) {
  .page-about .about-timeline__layout {
    grid-template-columns: minmax(140px, 190px) minmax(0, 1fr);
    align-items: start;
  }
  .page-about .about-timeline__rail {
    position: sticky;
    top: calc(var(--cy-header-h) + 2rem);
  }
}

.page-about .about-timeline__rail ul {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 900px) {
  .page-about .about-timeline__rail ul {
    flex-direction: column;
    gap: 0;
  }
}

.page-about .about-timeline__rail a {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .45rem .6rem .45rem .1rem;
  font-family: var(--cy-font-mono);
  font-size: var(--cy-index);
  letter-spacing: .12em;
  color: var(--cy-mist);
  text-decoration: none;
  border-radius: 8px;
  transition: color var(--cy-dur) var(--cy-ease), letter-spacing var(--cy-dur) var(--cy-ease);
}

.page-about .about-timeline__rail a:hover,
.page-about .about-timeline__rail a:focus-visible {
  color: var(--cy-cyan);
  letter-spacing: .18em;
  outline: none;
}

.page-about .about-timeline__dot {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: .45;
  transition: opacity var(--cy-dur) var(--cy-ease), box-shadow var(--cy-dur) var(--cy-ease);
}

.page-about .about-timeline__rail a:hover .about-timeline__dot,
.page-about .about-timeline__rail a:focus-visible .about-timeline__dot {
  opacity: 1;
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .18);
}

.page-about .about-timeline__list {
  display: grid;
  gap: clamp(.7rem, 1.8vw, 1.05rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline__item {
  padding: clamp(1.05rem, 2.4vw, 1.6rem) clamp(1.05rem, 2.6vw, 1.75rem);
  border: 1px solid var(--about-hair-soft);
  border-left: 2px solid rgba(34, 211, 238, .35);
  border-radius: 0 var(--about-radius) var(--about-radius) 0;
  background: rgba(21, 26, 34, .5);
  scroll-margin-top: calc(var(--cy-header-h) + 2rem);
  transition: border-color var(--cy-dur) var(--cy-ease), background var(--cy-dur) var(--cy-ease), transform var(--cy-dur) var(--cy-ease);
}

.page-about .about-timeline__item:hover {
  border-left-color: var(--cy-cyan);
  background: rgba(21, 26, 34, .8);
  transform: translateX(4px);
}

.page-about .about-timeline__item:target {
  border-left-color: var(--cy-gold);
  background: rgba(200, 169, 106, .09);
}

.page-about .about-timeline__tag {
  display: inline-block;
  margin-bottom: .55rem;
  font-family: var(--cy-font-mono);
  font-size: var(--cy-index);
  letter-spacing: .16em;
  color: var(--cy-cyan);
}

.page-about .about-timeline__item:target .about-timeline__tag {
  color: var(--cy-gold);
}

.page-about .about-timeline__title {
  margin: 0 0 .5rem;
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  font-weight: 500;
  line-height: 1.4;
  color: var(--cy-ice);
}

.page-about .about-timeline__text {
  max-width: 64ch;
  margin: 0;
  font-size: .95rem;
  line-height: 1.82;
  color: var(--cy-mist);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding: clamp(2.75rem, 7vw, 5.5rem) 0;
}

.page-about .about-team .cy-section__title {
  margin: .7rem 0 0;
  max-width: 22ch;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 500;
  line-height: 1.28;
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

.page-about .about-team__media {
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--about-hair);
  border-radius: var(--cy-radius-lg);
  overflow: hidden;
}

.page-about .about-team__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .about-team__body .cy-prose p {
  margin: 0 0 1.2em;
  font-size: var(--cy-body);
  line-height: 1.88;
  color: rgba(234, 242, 255, .82);
}

.page-about .about-team__roles {
  display: grid;
  gap: 1px;
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--about-hair-soft);
  border-radius: var(--about-radius);
  background: var(--about-hair-soft);
  overflow: hidden;
}

.page-about .about-team__roles li {
  display: flex;
  align-items: baseline;
  gap: clamp(.9rem, 2.2vw, 1.4rem);
  padding: clamp(1rem, 2.2vw, 1.35rem) clamp(1rem, 2.2vw, 1.5rem);
  background: rgba(21, 26, 34, .62);
  transition: background var(--cy-dur) var(--cy-ease);
}

.page-about .about-team__roles li:hover {
  background: rgba(15, 61, 122, .38);
}

.page-about .about-team__num {
  flex: 0 0 auto;
  min-width: 2.6ch;
  font-family: var(--cy-font-mono);
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  font-weight: 500;
  line-height: 1;
  color: var(--cy-gold);
}

.page-about .about-team__role {
  font-size: .93rem;
  line-height: 1.72;
  color: var(--cy-mist);
}

.page-about .about-team__role b {
  display: block;
  margin-bottom: .22rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--cy-ice);
}

.page-about .about-team__link {
  margin: clamp(1.25rem, 2.6vw, 1.75rem) 0 0;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--cy-mist);
}

.page-about .about-team__link a {
  color: var(--cy-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .4);
  transition: border-color var(--cy-dur) var(--cy-ease);
}

.page-about .about-team__link a:hover,
.page-about .about-team__link a:focus-visible {
  border-bottom-color: var(--cy-cyan);
}

/* ---------- 合作与资质 ---------- */
.page-about .about-trust {
  padding: clamp(2.75rem, 7vw, 5.5rem) 0;
  background: linear-gradient(180deg, transparent, rgba(27, 42, 85, .32) 38%, transparent);
}

.page-about .about-trust .cy-section__title {
  margin: .7rem 0 0;
  max-width: 20ch;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 500;
  line-height: 1.28;
}

.page-about .about-trust__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 235px), 1fr));
  gap: clamp(1rem, 2.2vw, 1.5rem);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-about .about-trust__card {
  display: flex;
  flex-direction: column;
  gap: .65rem;
  padding: clamp(1.25rem, 2.6vw, 1.75rem);
  border: 1px solid var(--about-hair);
  border-radius: var(--cy-radius);
  background: var(--about-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color var(--cy-dur) var(--cy-ease), transform var(--cy-dur) var(--cy-ease);
}

.page-about .about-trust__card:hover {
  border-color: var(--cy-line-strong);
  transform: translateY(-3px);
}

.page-about .about-trust__big {
  margin: 0;
  font-family: var(--cy-font-mono);
  font-size: clamp(1.9rem, 4.2vw, 2.8rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cy-gold);
}

.page-about .about-trust__big sup {
  margin-left: .08em;
  font-size: .45em;
  vertical-align: super;
}

.page-about .about-trust__unit {
  margin-left: .18em;
  font-size: .4em;
  color: var(--cy-mist);
}

.page-about .about-trust__card .cy-card__title {
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  font-weight: 500;
  line-height: 1.45;
  color: var(--cy-ice);
}

.page-about .about-trust__card .cy-card__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--cy-mist);
}

/* ---------- 服务承诺 ---------- */
.page-about .about-service {
  padding: 0 0 clamp(3rem, 8vw, 6rem);
}

.page-about .about-service__panel {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
  padding: clamp(1.6rem, 4vw, 3rem);
  border: 1px solid var(--about-hair);
  border-radius: var(--cy-radius-lg);
  background:
    radial-gradient(88% 140% at 6% 0%, rgba(34, 211, 238, .12), transparent 58%),
    var(--about-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

@media (min-width: 880px) {
  .page-about .about-service__panel {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
    align-items: center;
  }
}

.page-about .about-service__title {
  margin: .75rem 0 .85rem;
  max-width: 22ch;
  font-size: clamp(1.35rem, 2.8vw, 1.95rem);
  font-weight: 500;
  line-height: 1.32;
  color: var(--cy-ice);
}

.page-about .about-service__text {
  max-width: 56ch;
  margin: 0;
  font-size: var(--cy-body);
  line-height: 1.88;
  color: var(--cy-mist);
}

.page-about .about-service__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

@media (max-width: 480px) {
  .page-about .about-service__actions .cy-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 640px) {
  .page-about .about-hero h1 {
    max-width: none;
  }

  .page-about .about-timeline__item:hover {
    transform: none;
  }

  .page-about .about-quote::before {
    font-size: 3.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__item,
  .page-about .about-trust__card,
  .page-about .about-fav__dot,
  .page-about .about-timeline__rail a,
  .page-about .about-timeline__dot {
    transition: none;
  }

  .page-about .about-timeline__item:hover,
  .page-about .about-trust__card:hover {
    transform: none;
  }
}