.page-about {
  display: block;
}

/* ---------- 面包屑微调 ---------- */
.page-about .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  padding-top: 1.5rem;
  padding-bottom: .25rem;
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--text-muted);
}
.page-about .crumbs__item {
  color: inherit;
  text-decoration: none;
}
.page-about a.crumbs__item:hover {
  color: var(--gold-300);
}
.page-about .crumbs__sep {
  color: var(--text-dim);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 1.75rem 0 3.25rem;
  background:
    radial-gradient(130% 100% at 88% -10%, rgba(121, 176, 171, .16), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(200, 69, 44, .13), transparent 60%),
    linear-gradient(155deg, var(--felt-800) 0%, var(--felt-900) 72%);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .65;
  background-image: repeating-linear-gradient(115deg, rgba(234, 228, 215, .05) 0 1px, transparent 1px 46px);
}
.page-about .about-hero__inner {
  display: grid;
  gap: 2.25rem;
}
.page-about .about-hero__copy {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}
.page-about .about-hero__copy .eyebrow {
  color: var(--gold-300);
  font-size: .74rem;
  letter-spacing: .3em;
}
.page-about .about-hero .title-xl {
  margin: 0;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.14;
  color: var(--paper);
}
.page-about .about-hero .title-xl::after {
  content: "";
  display: block;
  width: 3.25rem;
  height: 3px;
  margin-top: 1.1rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold-500), rgba(216, 178, 106, 0));
}
.page-about .about-hero__note {
  margin: 0;
  padding-left: .9rem;
  border-left: 2px solid var(--cinnabar);
  font-size: .92rem;
  line-height: 1.8;
  color: var(--text-muted);
}
.page-about .about-hero__media {
  margin: 0;
  align-self: end;
}
.page-about .about-hero__media .media__caption {
  color: var(--text-dim);
}

/* ---------- 缘起 ---------- */
.page-about .about-origin {
  padding: 3.25rem 0;
  background: linear-gradient(180deg, var(--felt-900), var(--felt-800));
}
.page-about .about-origin__head {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  max-width: 44rem;
  margin-bottom: 1.9rem;
}
.page-about .about-origin__head .eyebrow {
  color: var(--cinnabar-soft);
}
.page-about .about-origin__grid {
  display: grid;
  gap: 1.75rem;
}
.page-about .about-origin__body {
  display: flex;
  flex-direction: column;
  gap: 1.05rem;
  min-width: 0;
}
.page-about .about-origin__body p {
  margin: 0;
  font-size: .97rem;
  line-height: 1.95;
  color: var(--text);
}
.page-about .about-origin__body p:first-of-type::first-letter {
  float: left;
  padding: .12rem .5rem 0 0;
  font-size: 3rem;
  font-weight: 800;
  line-height: .92;
  color: var(--gold-500);
}
.page-about .about-origin__side {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: 1.3rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(150deg, rgba(121, 176, 171, .14), rgba(8, 19, 15, .4));
}
.page-about .about-origin__tag {
  margin: 0;
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--celadon-soft);
}
.page-about .about-origin__side-text {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--text-muted);
}
.page-about .about-origin__media {
  margin: 2rem 0 0;
}

/* ---------- 四步指引 ---------- */
.page-about .about-steps {
  padding: 3.25rem 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, var(--felt-800), var(--felt-700));
}
.page-about .about-steps__head {
  max-width: 42rem;
  margin-bottom: 2rem;
}
.page-about .about-steps__head .eyebrow {
  color: var(--gold-300);
}
.page-about .about-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-about .about-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.25rem 1.25rem 1.35rem 1.5rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(8, 19, 15, .45);
}
.page-about .about-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.2rem;
  bottom: 1.2rem;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold-500), rgba(216, 178, 106, 0));
}
.page-about .about-step__num {
  font-size: .76rem;
  letter-spacing: .24em;
  color: var(--cinnabar-soft);
}
.page-about .about-step__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--paper);
}
.page-about .about-step__body {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 案例合集与测试版专栏 ---------- */
.page-about .about-programs {
  padding: 3.25rem 0;
  background: var(--felt-900);
}
.page-about .about-programs__grid {
  display: grid;
  gap: 1.25rem;
}
.page-about .about-program {
  display: flex;
  flex-direction: column;
  gap: .7rem;
}
.page-about .about-program__link {
  align-self: flex-start;
  margin-top: .35rem;
}

/* ---------- 归档方式 ---------- */
.page-about .about-archive {
  padding: 3.25rem 0;
  background: linear-gradient(175deg, var(--felt-800), var(--felt-900));
}
.page-about .about-archive__inner {
  display: grid;
  gap: 2rem;
}
.page-about .about-archive__copy {
  min-width: 0;
}
.page-about .about-archive__copy .eyebrow {
  color: var(--celadon-soft);
}
.page-about .about-archive__copy > p {
  margin: .9rem 0 0;
  font-size: .95rem;
  line-height: 1.9;
  color: var(--text-muted);
}
.page-about .about-archive__list {
  list-style: none;
  margin: 1.35rem 0 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}
.page-about .about-archive__list li {
  display: grid;
  gap: .3rem;
  padding-bottom: .85rem;
  border-bottom: 1px dashed var(--line-soft);
  font-size: .92rem;
  line-height: 1.8;
  color: var(--text-muted);
}
.page-about .about-archive__list .mono {
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--celadon-soft);
}
.page-about .about-archive__media {
  margin: 0;
}

/* ---------- 从哪开始 ---------- */
.page-about .about-next {
  padding: 3.25rem 0;
  background: var(--felt-900);
  border-top: 1px solid var(--line-soft);
}
.page-about .about-next__head {
  margin-bottom: 1.75rem;
}
.page-about .about-next__head .eyebrow {
  color: var(--gold-300);
}
.page-about .about-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-about .about-next__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "k v"
    "k d";
  gap: .3rem .95rem;
  height: 100%;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(12, 29, 23, .55);
  color: inherit;
  text-decoration: none;
  transition: border-color .25s ease, background-color .25s ease;
}
.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  border-color: var(--line);
  background: rgba(21, 51, 42, .72);
}
.page-about .about-next__k {
  grid-area: k;
  padding-top: .2rem;
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--gold-500);
}
.page-about .about-next__v {
  grid-area: v;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--paper);
}
.page-about .about-next__d {
  grid-area: d;
  font-size: .89rem;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ---------- 联系方式 ---------- */
.page-about .about-contact {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--line);
  background: linear-gradient(160deg, var(--felt-700), var(--felt-900));
}
.page-about .about-contact__inner {
  display: grid;
  gap: 1.75rem;
}
.page-about .about-contact__copy .eyebrow {
  color: var(--cinnabar-soft);
}
.page-about .about-contact__copy > p {
  margin: .85rem 0 0;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--text-muted);
}
.page-about .about-contact__side {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
}
.page-about .about-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .65rem;
  width: 100%;
}
.page-about .about-contact__list li {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  gap: .75rem;
  align-items: baseline;
  font-size: .95rem;
}
.page-about .about-contact__list .mono {
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--text-dim);
}
.page-about .about-contact__list a {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  word-break: break-word;
}
.page-about .about-contact__list a:hover {
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-steps__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    padding-bottom: 2.5rem;
  }
  .page-about .about-step:nth-child(even) {
    transform: translateY(1.75rem);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 2.25rem 0 4.5rem;
  }
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: end;
    gap: 3.5rem;
  }
  .page-about .about-hero .title-xl {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
  }
  .page-about .about-hero__media {
    transform: rotate(-1.4deg);
  }
  .page-about .about-origin {
    padding: 5rem 0;
  }
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .4fr);
    gap: 3rem;
    align-items: start;
  }
  .page-about .about-origin__media {
    width: 76%;
    margin: 2.75rem 0 0 auto;
  }
  .page-about .about-steps {
    padding: 4.5rem 0;
  }
  .page-about .about-programs {
    padding: 4.5rem 0;
  }
  .page-about .about-programs__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1.5rem;
  }
  .page-about .about-program:nth-child(1) {
    grid-column: 1 / span 7;
  }
  .page-about .about-program:nth-child(2) {
    grid-column: 8 / span 5;
    margin-top: 2.75rem;
  }
  .page-about .about-archive {
    padding: 4.5rem 0;
  }
  .page-about .about-archive__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, .78fr);
    gap: 3.25rem;
    align-items: center;
  }
  .page-about .about-next {
    padding: 4.5rem 0;
  }
  .page-about .about-contact {
    padding: 4rem 0 5rem;
  }
  .page-about .about-contact__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    gap: 3.5rem;
    align-items: center;
  }
}

@media (min-width: 1100px) {
  .page-about .about-steps__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.35rem;
  }
  .page-about .about-step:nth-child(even) {
    transform: translateY(2.25rem);
  }
  .page-about .about-step:nth-child(3) {
    transform: translateY(1rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__media,
  .page-about .about-step {
    transform: none;
  }
  .page-about .about-next__link {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>