.page-about {
  --about-rule: rgba(27, 70, 104, 0.62);
  --about-rule-soft: rgba(27, 70, 104, 0.38);
  --about-cyan-line: rgba(34, 230, 255, 0.34);
  background:
    radial-gradient(860px 440px at 10% -8%, rgba(34, 230, 255, 0.10), transparent 64%),
    radial-gradient(680px 420px at 92% 34%, rgba(255, 107, 74, 0.06), transparent 68%),
    linear-gradient(180deg, var(--deep) 0%, var(--abyss) 74%, var(--deep) 100%);
  color: var(--ice);
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* 章节标题组 */
.page-about .about-head {
  max-width: 780px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-head__title {
  margin: 10px 0 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.6vw, 1.95rem);
  line-height: 1.32;
  color: var(--ice);
}

.page-about .about-head__meta {
  margin: 10px 0 0;
  max-width: 46ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--steel);
}

/* 01 首屏 */
.page-about .about-hero {
  padding-top: clamp(20px, 4vw, 44px);
  padding-bottom: clamp(28px, 5vw, 56px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 28px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .about-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-about .about-hero__intro {
  margin: 16px 0 0;
  max-width: 44ch;
  font-size: clamp(0.98rem, 1vw + 0.72rem, 1.08rem);
  line-height: 1.85;
  color: var(--steel);
}

.page-about .about-hero__intro + .about-hero__intro {
  margin-top: 12px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-side {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--about-rule);
  background: linear-gradient(158deg, rgba(13, 43, 74, 0.92), rgba(4, 16, 29, 0.88));
  backdrop-filter: blur(6px);
}

.page-about .about-side::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--coral));
}

.page-about .about-side__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-side__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .about-side__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--about-rule-soft);
  font-size: 0.92rem;
  color: var(--steel);
}

.page-about .about-side__item:last-child {
  border-bottom: 0;
}

.page-about .about-side__val {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--ice);
}

.page-about .about-side__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--about-rule-soft);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--steel);
}

/* 02 年份时间线 */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-timeline__item {
  display: grid;
  gap: 6px;
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--about-rule-soft);
}

.page-about .about-timeline__year {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.98rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-about .about-timeline__year::after {
  content: "";
  flex: 1;
  height: 1px;
  min-width: 24px;
  background: linear-gradient(90deg, var(--about-cyan-line), transparent);
}

.page-about .about-timeline__title {
  margin: 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--ice);
}

.page-about .about-timeline__desc {
  margin: 6px 0 0;
  max-width: 56ch;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--steel);
}

/* 图片容器 */
.page-about .about-photo {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--about-rule);
  background: var(--panel);
}

.page-about .about-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 16, 29, 0.05) 42%, rgba(4, 16, 29, 0.68) 100%);
}

.page-about .about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) brightness(0.84);
}

.page-about .about-photo--wide {
  aspect-ratio: 3 / 2;
}

.page-about .about-photo--banner {
  aspect-ratio: 16 / 9;
}

.page-about .about-photo--tall {
  aspect-ratio: 3 / 4;
}

.page-about .about-photo__cap {
  margin: 10px 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--steel);
  letter-spacing: 0.01em;
}

/* 03 团队 */
.page-about .about-team__grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-about .about-team__card {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--about-rule);
  background: rgba(13, 43, 74, 0.5);
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.page-about .about-team__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--cyan);
  opacity: 0.7;
  transition: width 0.25s ease, opacity 0.25s ease;
}

.page-about .about-team__card:hover {
  border-color: var(--about-cyan-line);
  background: rgba(13, 43, 74, 0.82);
}

.page-about .about-team__card:hover::before {
  width: 100%;
  opacity: 1;
}

.page-about .about-team__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-about .about-team__count {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--coral);
}

.page-about .about-team__count span {
  font-size: 0.72rem;
  margin-left: 3px;
  color: var(--steel);
}

.page-about .about-team__name {
  margin: 10px 0 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--ice);
}

.page-about .about-team__desc {
  margin: 8px 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--steel);
}

/* 04 内容入口 */
.page-about .about-entries__list {
  display: grid;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-entries__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 20px;
  gap: 4px 12px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--about-rule-soft);
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.page-about .about-entries__idx {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-about .about-entries__name {
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 1.06rem;
  color: var(--ice);
  transition: color 0.2s ease;
}

.page-about .about-entries__desc {
  grid-column: 2 / 3;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--steel);
}

.page-about .about-entries__arrow {
  grid-row: 1 / span 2;
  grid-column: 3 / 4;
  align-self: center;
  font-family: var(--font-mono);
  color: var(--steel);
  transition: color 0.2s ease, transform 0.2s ease;
}

.page-about .about-entries__item:hover .about-entries__name {
  color: var(--cyan);
}

.page-about .about-entries__item:hover .about-entries__arrow {
  color: var(--coral);
  transform: translateX(3px);
}

/* 05 本地服务 */
.page-about .about-local__grid {
  display: grid;
  gap: 24px;
}

.page-about .about-local__title {
  margin: 10px 0 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.6vw, 1.95rem);
  line-height: 1.32;
  color: var(--ice);
}

.page-about .about-local__text {
  margin: 12px 0 0;
  max-width: 44ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--steel);
}

.page-about .about-local__list {
  list-style: none;
  margin: 18px 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-local__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--steel);
}

.page-about .about-local__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

/* 06 合作生态 */
.page-about .about-eco__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-about .about-eco__stats {
  display: grid;
  gap: 16px;
}

.page-about .about-eco__stat {
  padding-left: 14px;
  border-left: 2px solid var(--about-cyan-line);
}

.page-about .about-eco__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-eco__num span {
  margin-left: 4px;
  font-size: 0.75rem;
  color: var(--steel);
}

.page-about .about-eco__label {
  margin: 8px 0 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ice);
}

.page-about .about-eco__desc {
  margin: 6px 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--steel);
}

.page-about .about-eco__honors {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-eco__honors li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--about-rule);
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--ice);
}

.page-about .about-eco__year {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  color: var(--coral);
}

/* 07 更新与校读 */
.page-about .about-quality__grid {
  display: grid;
  gap: 24px;
}

.page-about .about-quality__title {
  margin: 10px 0 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.6vw, 1.95rem);
  line-height: 1.32;
  color: var(--ice);
}

.page-about .about-quality__body > .about-quality__text {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 0.95rem;
  line-height: 1.82;
  color: var(--steel);
}

.page-about .about-quality__steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-about .about-quality__step {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--about-rule-soft);
}

.page-about .about-quality__step:last-child {
  border-bottom: 1px solid var(--about-rule-soft);
}

.page-about .about-quality__time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-about .about-quality__step .about-quality__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--steel);
}

/* 08 继续了解 */
.page-about .about-next__panel {
  padding: clamp(22px, 3vw, 36px);
  border: 1px solid var(--about-rule);
  background: linear-gradient(150deg, rgba(13, 43, 74, 0.86), rgba(4, 16, 29, 0.9));
  position: relative;
}

.page-about .about-next__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--coral));
}

.page-about .about-next__title {
  margin: 10px 0 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  line-height: 1.34;
  color: var(--ice);
}

.page-about .about-next__text {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--steel);
}

.page-about .about-next__links {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-about .about-next__link {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--about-rule-soft);
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-about .about-next__link:hover {
  border-color: var(--about-cyan-line);
  background: rgba(34, 230, 255, 0.06);
}

.page-about .about-next__idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-about .about-next__label {
  font-size: 0.92rem;
  color: var(--ice);
}

.page-about .about-next__arrow {
  font-family: var(--font-mono);
  color: var(--steel);
  transition: color 0.2s ease, transform 0.2s ease;
}

.page-about .about-next__link:hover .about-next__arrow {
  color: var(--coral);
  transform: translateX(3px);
}

/* 中等屏幕 */
@media (min-width: 640px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-about .about-timeline__item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }

  .page-about .about-eco__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-side {
    position: sticky;
    top: 24px;
  }

  .page-about .about-entries__item {
    grid-template-columns: 48px 180px minmax(0, 1fr) 24px;
    align-items: baseline;
    gap: 4px 18px;
    padding: 18px 0;
  }

  .page-about .about-entries__idx {
    grid-row: auto;
    padding-top: 0;
  }

  .page-about .about-entries__desc {
    grid-column: auto;
  }

  .page-about .about-entries__arrow {
    grid-row: auto;
    grid-column: auto;
  }

  .page-about .about-local__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-quality__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-quality__figure {
    position: sticky;
    top: 24px;
  }
}
<<<END>>>