.page-about {
  --about-rule: rgba(16, 20, 24, .14);
  --about-rule-light: rgba(244, 239, 230, .18);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 2.2rem) 0 3rem;
  background: var(--ink);
  color: var(--paper);
}

.page-about .about-hero__glow {
  position: absolute;
  inset: -20% -10% auto auto;
  width: min(720px, 90vw);
  height: min(720px, 90vw);
  background:
    radial-gradient(circle at 40% 40%, rgba(47, 143, 91, .34), transparent 62%),
    radial-gradient(circle at 70% 65%, rgba(255, 90, 31, .22), transparent 58%);
  filter: blur(4px);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0 0 1.6rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-ui);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--paper-soft);
}

.page-about .about-hero__crumb li + li::before {
  content: "/";
  margin-right: .4rem;
  color: rgba(201, 207, 214, .55);
}

.page-about .about-hero__crumb a {
  color: var(--paper-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.page-about .about-hero__crumb a:hover,
.page-about .about-hero__crumb a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 2.4rem;
}

.page-about .about-hero .eyebrow {
  color: var(--amber);
}

.page-about .about-hero h1 {
  margin: .6rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 7.2vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  transform: scaleX(1.02);
  transform-origin: left center;
  color: var(--paper);
}

.page-about .about-hero__lede {
  margin: 1.3rem 0 0;
  max-width: 42ch;
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.85;
  color: rgba(244, 239, 230, .82);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.8rem;
}

.page-about .about-hero__art {
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-about .about-hero__svg {
  width: min(100%, 380px);
  height: auto;
  animation: about-breathe 9s ease-in-out infinite;
}

@keyframes about-breathe {
  0%, 100% { opacity: .92; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-6px); }
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 2.8rem 0 0;
  padding: 0;
  list-style: none;
  background: var(--about-rule-light);
  border-top: 1px solid var(--about-rule-light);
  border-bottom: 1px solid var(--about-rule-light);
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1rem .2rem 1.1rem;
  background: var(--ink);
}

.page-about .about-hero__fact-num {
  font-family: var(--font-data);
  font-size: clamp(1.5rem, 5vw, 2.1rem);
  font-weight: 700;
  color: var(--orange);
  letter-spacing: -.02em;
}

.page-about .about-hero__fact-label {
  font-family: var(--font-ui);
  font-size: .78rem;
  letter-spacing: .04em;
  color: rgba(244, 239, 230, .62);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter {
  display: grid;
  gap: .8rem;
}

.page-about .about-chapter__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 12vw, 5.4rem);
  line-height: .8;
  letter-spacing: -.04em;
  color: rgba(16, 20, 24, .1);
  order: -1;
}

.page-about .about-chapter--dark .about-chapter__num {
  color: rgba(244, 239, 230, .14);
}

.page-about .about-chapter h2 {
  margin: .35rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.65rem, 5.2vw, 2.6rem);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-about .about-chapter--dark h2 {
  color: var(--paper);
}

.page-about .about-chapter--dark .eyebrow {
  color: var(--amber);
}

.page-about .about-lead {
  margin: 1.1rem 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .about-chapter--dark .about-lead {
  color: rgba(244, 239, 230, .74);
}

/* ---------- 01 品牌起点 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: 1.9rem;
  margin-top: 1.8rem;
}

.page-about .about-origin__text p {
  margin: 0 0 1.1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-about .about-quote {
  margin: 1.6rem 0;
  padding: .3rem 0 .3rem 1.1rem;
  border-left: 5px solid var(--orange);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 3.4vw, 1.42rem);
  line-height: 1.6;
  color: var(--ink);
}

.page-about .about-origin__figure,
.page-about .about-method__figure,
.page-about .about-culture__figure {
  margin: 0;
}

.page-about .about-origin__figure figcaption,
.page-about .about-method__figure figcaption,
.page-about .about-culture__figure figcaption {
  margin-top: .65rem;
  font-family: var(--font-ui);
  font-size: .78rem;
  letter-spacing: .03em;
  color: var(--fog);
}

.page-about .about-culture__figure figcaption {
  color: rgba(244, 239, 230, .55);
}

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

/* ---------- 02 编辑方法 ---------- */
.page-about .about-method__grid {
  display: grid;
  gap: 1.9rem;
  margin-top: 1.8rem;
}

.page-about .about-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .2rem;
}

.page-about .about-step {
  position: relative;
  padding: 1.15rem 0 1.15rem 2.9rem;
  border-top: 1px solid var(--about-rule);
}

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

.page-about .about-step__no {
  position: absolute;
  left: 0;
  top: 1.2rem;
  font-family: var(--font-data);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--kz-red);
}

.page-about .about-step h3 {
  margin: 0 0 .4rem;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-about .about-step p {
  margin: 0;
  font-family: var(--font-body);
  font-size: .94rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-about .about-step::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: var(--orange);
  transition: width .32s ease;
}

.page-about .about-step:hover::after,
.page-about .about-step:focus-within::after {
  width: 100%;
}

/* ---------- 03 团队 ---------- */
.page-about .about-crew {
  display: grid;
  gap: 1.5rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-crew__item {
  display: grid;
  gap: .45rem;
  padding: 1.2rem 1.2rem 1.4rem;
  border-radius: var(--radius);
  background: var(--night);
  transition: transform .28s ease, background-color .28s ease;
}

.page-about .about-crew__item:hover,
.page-about .about-crew__item:focus-within {
  transform: translateY(-4px);
  background: var(--space);
}

.page-about .about-crew__num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(2rem, 8vw, 2.9rem);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--orange);
}

.page-about .about-crew__num i {
  font-style: normal;
  font-size: .5em;
  color: var(--amber);
  margin-left: .1em;
}

.page-about .about-crew__role {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .06em;
  color: var(--paper);
}

.page-about .about-crew__bar {
  display: block;
  height: 4px;
  border-radius: 999px;
  background: var(--silver);
  opacity: .3;
  margin: .2rem 0 .5rem;
}

.page-about .about-crew__item--a .about-crew__bar {
  background: linear-gradient(90deg, var(--orange), var(--amber));
  opacity: 1;
  width: 62%;
}

.page-about .about-crew__item--b .about-crew__bar {
  background: linear-gradient(90deg, var(--kz-red), var(--orange));
  opacity: 1;
  width: 24%;
}

.page-about .about-crew__item--c .about-crew__bar {
  background: linear-gradient(90deg, var(--green), var(--amber));
  opacity: 1;
  width: 100%;
}

.page-about .about-crew__note {
  margin: 0;
  font-family: var(--font-body);
  font-size: .9rem;
  line-height: 1.78;
  color: rgba(244, 239, 230, .7);
}

/* ---------- 04 时间轴 ---------- */
.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 1.2rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--amber), var(--orange) 55%, var(--kz-red));
  border-radius: 2px;
}

.page-about .about-tl {
  position: relative;
  padding: .1rem 0 .1rem 2.4rem;
}

.page-about .about-tl__dot {
  position: absolute;
  left: 4px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 4px var(--about-rule);
  transition: background-color .24s ease, box-shadow .24s ease;
}

.page-about .about-tl:hover .about-tl__dot,
.page-about .about-tl:focus-within .about-tl__dot {
  background: var(--orange);
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 5px rgba(255, 90, 31, .3);
}

.page-about .about-tl__year {
  display: inline-block;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(1.4rem, 5.4vw, 1.9rem);
  letter-spacing: -.02em;
  color: var(--space);
}

.page-about .about-tl h3 {
  margin: .25rem 0 .4rem;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}

.page-about .about-tl p {
  margin: 0;
  font-family: var(--font-body);
  font-size: .92rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 05 覆盖与协作 ---------- */
.page-about .about-scale__grid {
  display: grid;
  gap: 1.8rem;
  margin-top: 1.9rem;
}

.page-about .about-scale__big {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 1.4rem 1.3rem 1.6rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, var(--space), var(--night) 68%);
  color: var(--paper);
}

.page-about .about-scale__big-num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(3rem, 14vw, 5rem);
  line-height: .9;
  letter-spacing: -.04em;
  color: var(--orange);
}

.page-about .about-scale__big-label {
  font-family: var(--font-body);
  font-size: .94rem;
  line-height: 1.75;
  color: rgba(244, 239, 230, .8);
}

.page-about .about-scale__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .9rem;
}

.page-about .about-scale__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: .9rem;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-scale__list .num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.32rem;
  color: var(--kz-red);
  letter-spacing: -.02em;
}

.page-about .about-scale__list p {
  margin: 0;
  font-family: var(--font-body);
  font-size: .93rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-about .about-scale__links {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem 1.8rem;
  margin-top: 1.9rem;
}

.page-about .about-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding-bottom: .2rem;
  font-family: var(--font-ui);
  font-size: .92rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  transition: color .22s ease, gap .22s ease;
}

.page-about .about-link span {
  color: var(--orange);
  transition: transform .22s ease;
}

.page-about .about-link:hover,
.page-about .about-link:focus-visible {
  color: var(--kz-red);
  gap: .75rem;
}

.page-about .about-link:hover span,
.page-about .about-link:focus-visible span {
  transform: translateX(4px);
}

/* ---------- 06 地域气质 ---------- */
.page-about .about-culture__grid {
  display: grid;
  gap: 1.9rem;
  margin-top: 1.7rem;
}

.page-about .about-culture__text p {
  margin: 0 0 1.1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(244, 239, 230, .78);
}

.page-about .about-values {
  display: grid;
  gap: .2rem;
  margin: 1.5rem 0 0;
}

.page-about .about-values > div {
  display: grid;
  grid-template-columns: 4.2rem 1fr;
  align-items: baseline;
  gap: .9rem;
  padding: .8rem 0;
  border-top: 1px solid var(--about-rule-light);
}

.page-about .about-values > div:last-child {
  border-bottom: 1px solid var(--about-rule-light);
}

.page-about .about-values dt {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--amber);
}

.page-about .about-values dd {
  margin: 0;
  font-family: var(--font-body);
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(244, 239, 230, .68);
}

/* ---------- 07 合作邀请 ---------- */
.page-about .about-invite__panel {
  position: relative;
  display: grid;
  gap: 1.2rem;
  padding: 1.9rem 1.4rem 2.1rem;
  border-radius: var(--radius-lg);
  background: var(--paper);
  border: 1px solid var(--about-rule);
  box-shadow: var(--shadow-lift);
  overflow: hidden;
}

.page-about .about-invite__mark {
  position: absolute;
  right: -50px;
  top: -50px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 90, 31, .2), transparent 68%);
  pointer-events: none;
}

.page-about .about-invite__text h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.8vw, 2.1rem);
  line-height: 1.3;
  color: var(--ink);
}

.page-about .about-invite__text p {
  margin: .9rem 0 0;
  max-width: 58ch;
  font-family: var(--font-body);
  font-size: .96rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .about-invite__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.4rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-hero__facts li {
    padding-left: .9rem;
  }

  .page-about .about-invite__panel {
    padding: 2.4rem 2.2rem 2.6rem;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: calc(var(--header-h) + 3.4rem) 0 4rem;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 1.22fr .78fr;
    align-items: center;
    gap: 3rem;
  }

  .page-about .about-hero__svg {
    width: min(100%, 440px);
  }

  .page-about .about-hero__facts {
    margin-top: 3.4rem;
  }

  .page-about .about-chapter {
    grid-template-columns: minmax(0, 140px) minmax(0, 1fr);
    gap: 2.2rem;
    align-items: start;
  }

  .page-about .about-chapter__num {
    order: 0;
    position: sticky;
    top: calc(var(--header-h) + 1.4rem);
    font-size: clamp(3.4rem, 6vw, 5.6rem);
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 2.6rem;
    align-items: start;
  }

  .page-about .about-method__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 2.6rem;
    align-items: start;
  }

  .page-about .about-crew {
    grid-template-columns: 1.5fr 1fr 2fr;
    gap: 1.2rem;
    align-items: stretch;
  }

  .page-about .about-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.6rem;
    padding-top: 1.6rem;
  }

  .page-about .about-timeline::before {
    left: 2%;
    right: 2%;
    top: 62%;
    bottom: auto;
    width: auto;
    height: 2px;
    transform: rotate(-7deg);
    transform-origin: left center;
  }

  .page-about .about-tl {
    padding: 0;
    background: var(--paper);
    z-index: 1;
  }

  .page-about .about-tl:nth-child(1) { transform: translateY(0); }
  .page-about .about-tl:nth-child(2) { transform: translateY(-2.4rem); }
  .page-about .about-tl:nth-child(3) { transform: translateY(-4.8rem); }

  .page-about .about-tl__dot {
    position: static;
    display: block;
    width: 12px;
    height: 12px;
    margin-bottom: .9rem;
  }

  .page-about .about-scale__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 2.4rem;
    align-items: start;
  }

  .page-about .about-culture__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 2.6rem;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__svg {
    animation: none;
  }

  .page-about .about-step::after,
  .page-about .about-crew__item,
  .page-about .about-link,
  .page-about .about-tl__dot {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>