.page-about {
  --about-border: 1px solid var(--line);
  --about-gap: 1.5rem;
  display: block;
  padding-bottom: 4rem;
}

/* 面包屑 */
.page-about .about-crumb-wrap {
  padding-top: 1.25rem;
}

/* 首屏 */
.page-about .about-hero {
  display: grid;
  gap: 2rem;
  padding: 1.5rem 0 2.5rem;
}

.page-about .about-hero__lede {
  margin: 1rem 0 0;
  max-width: 64ch;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--ice-dim);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.page-about .about-hero__panel {
  position: relative;
  overflow: hidden;
  padding: 1.4rem 1.3rem;
  border: var(--about-border);
  border-radius: var(--radius-lg);
}

.page-about .about-hero__panel::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 242, 224, 0.20), rgba(56, 242, 224, 0) 68%);
  pointer-events: none;
}

.page-about .about-panel-title {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-facts {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-facts li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.8rem 0.85rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(11, 16, 38, 0.55);
}

.page-about .about-facts__num {
  font-size: 1.42rem;
  line-height: 1.1;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-about .about-facts__label {
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--mist);
}

/* 通用区块 */
.page-about .about-block {
  padding: 2.75rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-block--alt {
  position: relative;
}

.page-about .about-block--alt::before {
  content: "";
  position: absolute;
  inset: 0 50% 0 auto;
  width: 1px;
  background: linear-gradient(180deg, rgba(56, 242, 224, 0) 0%, rgba(56, 242, 224, 0.18) 45%, rgba(56, 242, 224, 0) 100%);
  pointer-events: none;
}

.page-about .about-block__head {
  max-width: 68ch;
}

.page-about .about-block__head h2 {
  margin: 0.45rem 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 4.2vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 1.3;
  color: var(--ice);
}

.page-about .about-block__head .lede {
  margin: 0;
  color: var(--mist);
  font-size: 0.98rem;
  line-height: 1.75;
}

/* 业务起点 */
.page-about .about-origin {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.75rem;
}

.page-about .about-origin__body p {
  margin: 0 0 1rem;
  color: var(--ice-dim);
  line-height: 1.85;
}

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

.page-about .about-origin__list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 1.25rem;
  list-style: none;
  border: var(--about-border);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.page-about .about-origin__list li {
  display: grid;
  gap: 0.35rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px dashed var(--line-soft);
}

.page-about .about-origin__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-origin__key {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-about .about-origin__list p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ice-dim);
}

/* 版本时间线 */
.page-about .about-timeline-layout {
  display: grid;
  gap: 2rem;
  margin-top: 1.75rem;
}

.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 1.9rem;
  margin: 0;
  padding: 0 0 0 1.6rem;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-about .about-timeline__item {
  position: relative;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  top: 0.35rem;
  left: calc(-1.6rem - 5.5px);
  width: 11px;
  height: 11px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  background: var(--bg);
  box-shadow: 0 0 0 4px rgba(56, 242, 224, 0.12);
  transition: background 220ms ease, box-shadow 220ms ease;
}

.page-about .about-timeline__item:hover::before {
  background: var(--cyan);
  box-shadow: 0 0 0 7px rgba(56, 242, 224, 0.16);
}

.page-about .about-timeline__item .stamp {
  display: inline-block;
  margin-bottom: 0.55rem;
  padding: 0.14rem 0.62rem;
  border: 1px solid rgba(255, 179, 71, 0.38);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-about .about-timeline__item h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ice);
  transition: color 200ms ease;
}

.page-about .about-timeline__item:hover h3 {
  color: var(--cyan-soft);
}

.page-about .about-timeline__item p {
  margin: 0;
  max-width: 58ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--mist);
}

/* 图片 */
.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--about-border);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-about .about-figure .media-cap {
  margin-top: 0.7rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
}

/* 标签迁移 */
.page-about .about-map {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.75rem;
}

.page-about .about-steps {
  counter-reset: aboutstep;
  display: grid;
  gap: 1.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.page-about .about-steps li::before {
  counter-increment: aboutstep;
  content: counter(aboutstep, decimal-leading-zero);
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--panel-soft);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .about-steps h3 {
  margin: 0.35rem 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ice);
}

.page-about .about-steps p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-map__panel {
  padding: 1.3rem 1.2rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(56, 242, 224, 0.22);
}

.page-about .about-map__panel .about-panel-title {
  color: var(--cyan-soft);
}

.page-about .about-map__rows {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-map__rows li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.62rem 0.75rem;
  border: 1px solid rgba(234, 246, 255, 0.12);
  border-radius: var(--radius-sm);
  background: rgba(11, 16, 38, 0.42);
  font-size: 0.84rem;
}

.page-about .about-map__arrow {
  font-family: var(--font-mono);
  color: var(--mist);
}

.page-about .about-map__hint {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--ice-dim);
  opacity: 0.85;
}

.page-about .about-map__figure {
  margin-top: 0.25rem;
}

/* 维护团队 */
.page-about .about-team {
  display: grid;
  gap: 1.15rem;
  margin-top: 1.75rem;
}

.page-about .about-role {
  position: relative;
  display: grid;
  gap: 0.6rem;
  padding: 1.3rem 1.2rem;
  border: var(--about-border);
  border-radius: var(--radius-lg);
  background: var(--panel-soft);
  overflow: hidden;
}

.page-about .about-role::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), rgba(56, 242, 224, 0));
}

.page-about .about-role__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: var(--ice);
}

.page-about .about-role__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ice-dim);
}

.page-about .about-role__tag {
  margin: 0;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--line-soft);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-about .about-figure--team {
  margin-top: 1.75rem;
}

/* 服务与响应 */
.page-about .about-service {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.75rem;
}

.page-about .about-service__text p {
  margin: 0 0 1rem;
  color: var(--ice-dim);
  line-height: 1.85;
}

.page-about .about-service__points {
  display: grid;
  gap: 0.7rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-service__points li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
  align-items: baseline;
  padding: 0.7rem 0.9rem;
  border-left: 2px solid var(--line);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(20, 27, 60, 0.6);
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ice-dim);
}

.page-about .about-service__key {
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-about .about-contact {
  align-self: start;
  padding: 1.3rem 1.2rem;
  border: var(--about-border);
  border-radius: var(--radius-lg);
}

.page-about .about-contact__list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-contact__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px dashed var(--line-soft);
}

.page-about .about-contact__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-contact__list .contact-value {
  font-size: 0.86rem;
  color: var(--ice);
  word-break: break-all;
}

.page-about .about-contact__note {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-contact__link {
  display: inline-block;
  margin-top: 1.1rem;
}

/* 资质与合作 */
.page-about .about-creds {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-about .about-creds__item {
  padding: 1.2rem 1.15rem;
  border: var(--about-border);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.page-about .about-creds__item--wine {
  background: var(--wine);
  border-color: rgba(234, 246, 255, 0.18);
}

.page-about .about-creds__label {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-about .about-creds__item--wine .about-creds__label {
  color: var(--amber);
}

.page-about .about-creds__value {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.14rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.4;
  color: var(--ice);
}

.page-about .about-creds__desc {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--ice-dim);
}

.page-about .about-creds__item--wine .about-creds__desc {
  color: var(--ice);
}

/* 后续入口 */
.page-about .about-next {
  padding-top: 2.5rem;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-next h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ice);
}

.page-about .about-next__list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-next__list a {
  display: grid;
  gap: 0.3rem;
  padding: 1rem 1.1rem;
  border: var(--about-border);
  border-radius: var(--radius);
  background: rgba(20, 27, 60, 0.55);
  text-decoration: none;
  transition: border-color 200ms ease, transform 200ms ease, background 200ms ease;
}

.page-about .about-next__list a:hover,
.page-about .about-next__list a:focus-visible {
  border-color: var(--cyan);
  background: rgba(56, 242, 224, 0.08);
  transform: translateY(-2px);
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan-soft);
}

.page-about .about-next__desc {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--mist);
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-about .about-team {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-creds {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about {
    padding-bottom: 5.5rem;
  }

  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
    gap: 3rem;
    padding: 2.25rem 0 3.75rem;
  }

  .page-about .about-block {
    padding: 3.5rem 0;
  }

  .page-about .about-origin {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 2.75rem;
  }

  .page-about .about-timeline-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-map {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2.5rem;
  }

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

  .page-about .about-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-service {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 2.75rem;
  }

  .page-about .about-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-about .about-block__head h2 {
    font-size: 2.05rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-next__list a,
  .page-about .about-timeline__item::before,
  .page-about .about-timeline__item h3 {
    transition: none;
  }

  .page-about .about-next__list a:hover,
  .page-about .about-next__list a:focus-visible {
    transform: none;
  }
}