.page-about {
  --about-ink-soft: rgba(31, 29, 25, .72);
  --about-rail: 2px;
}

/* ---------- 面包屑间距 ---------- */
.page-about .breadcrumbs {
  padding: 20px 0 8px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  background: var(--porcelain);
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 38%;
  height: 100%;
  background: linear-gradient(200deg, rgba(14, 59, 51, .07), transparent 68%);
  pointer-events: none;
}
.page-about .about-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 32px 0 56px;
}
.page-about .about-hero__kicker {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--moss);
  margin: 0 0 14px;
}
.page-about .about-hero__kicker .mono {
  color: var(--amber);
}
.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--green-deep);
  margin: 0 0 18px;
  font-weight: 600;
}
.page-about .about-hero__lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  margin: 0 0 16px;
  max-width: 60ch;
}
.page-about .about-hero__note {
  font-size: 13px;
  color: var(--moss);
  border-left: 2px solid var(--line);
  padding-left: 10px;
  margin: 0 0 22px;
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-hero__figure {
  position: relative;
  padding-top: 8px;
}
.page-about .about-hero__watermark {
  position: absolute;
  top: 0;
  right: 4px;
  z-index: 0;
  font-size: 96px;
  line-height: 1;
  font-weight: 700;
  color: rgba(14, 59, 51, .07);
  letter-spacing: -.04em;
  pointer-events: none;
  user-select: none;
}
.page-about .about-hero__figure .media-frame {
  position: relative;
  z-index: 1;
}

/* ---------- 阶段摘要 ---------- */
.page-about .about-summary {
  background: var(--cream);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 44px 0;
}
.page-about .about-summary__head {
  margin-bottom: 26px;
}
.page-about .about-summary__index,
.page-about .about-today__index,
.page-about .about-habits__index,
.page-about .about-next__index {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold);
  margin: 0 0 10px;
}
.page-about .about-summary__title {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--green-deep);
  margin: 0 0 10px;
  font-weight: 600;
}
.page-about .about-summary__lead {
  font-size: 15px;
  line-height: 1.7;
  color: var(--about-ink-soft);
  margin: 0;
  max-width: 58ch;
}
.page-about .about-summary__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.page-about .about-summary__link {
  display: grid;
  grid-template-columns: 40px 1fr;
  grid-template-areas:
    "num label"
    "num desc";
  align-items: baseline;
  column-gap: 12px;
  padding: 14px 16px;
  background: var(--cream);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .about-summary__link:hover,
.page-about .about-summary__link:focus-visible {
  background: var(--porcelain);
  border-color: var(--amber);
  border-left-color: var(--amber);
}
.page-about .about-summary__num {
  grid-area: num;
  font-size: 15px;
  color: var(--gold);
}
.page-about .about-summary__label {
  grid-area: label;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--green-deep);
  font-weight: 600;
}
.page-about .about-summary__desc {
  grid-area: desc;
  font-size: 14px;
  line-height: 1.6;
  color: var(--moss);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  padding: 56px 0 40px;
  background: var(--porcelain);
}
.page-about .about-timeline__head {
  margin-bottom: 34px;
}
.page-about .about-timeline__index {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold);
  margin: 0 0 10px;
}
.page-about .about-timeline__title {
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1.3;
  color: var(--green-deep);
  margin: 0 0 12px;
  font-weight: 600;
}
.page-about .about-timeline__intro {
  font-size: 15px;
  line-height: 1.75;
  color: var(--about-ink-soft);
  margin: 0;
  max-width: 56ch;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: var(--about-rail);
  background: var(--line);
}

.page-about .about-node {
  position: relative;
  padding: 0 0 44px 34px;
}
.page-about .about-node:last-child {
  padding-bottom: 0;
}
.page-about .about-node__rail {
  position: absolute;
  left: 0;
  top: 4px;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-about .about-node__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 3px var(--porcelain), 0 0 0 4px var(--line);
  transition: box-shadow var(--dur) var(--ease);
}
.page-about .about-node__dot--pending {
  background: var(--porcelain);
  box-shadow: 0 0 0 3px var(--porcelain), 0 0 0 4px var(--amber);
}
.page-about .about-node__stage {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
  margin: 0 0 8px;
}
.page-about .about-node__title {
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.4;
  color: var(--green-deep);
  margin: 0 0 12px;
  font-weight: 600;
}
.page-about .about-node__text {
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
  margin: 0 0 18px;
  max-width: 62ch;
}
.page-about .about-node__figure {
  margin: 0 0 18px;
}
.page-about .about-node__facts {
  list-style: none;
  margin: 0;
  padding: 14px 16px;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: 8px;
}
.page-about .about-node__facts li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}
.page-about .about-node__facts .mono {
  color: var(--moss);
  font-size: 12px;
  letter-spacing: .06em;
  min-width: 76px;
}

/* ---------- 今天 ---------- */
.page-about .about-today {
  background: var(--green-deep);
  color: var(--porcelain);
  padding: 56px 0 50px;
}
.page-about .about-today__head {
  margin-bottom: 30px;
}
.page-about .about-today__index {
  color: var(--gold);
}
.page-about .about-today__title {
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1.3;
  color: var(--porcelain);
  margin: 0 0 12px;
  font-weight: 600;
}
.page-about .about-today__lead {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 243, 234, .74);
  margin: 0;
  max-width: 58ch;
}
.page-about .about-today__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(220, 200, 155, .28);
  border: 1px solid rgba(220, 200, 155, .28);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-about .about-fact {
  background: var(--green-deep);
  padding: 22px 20px;
}
.page-about .about-fact__num {
  font-size: 30px;
  line-height: 1;
  color: var(--gold);
  margin: 0 0 10px;
  letter-spacing: -.02em;
}
.page-about .about-fact__label {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--porcelain);
  margin: 0 0 8px;
  font-weight: 600;
}
.page-about .about-fact__text {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(246, 243, 234, .68);
  margin: 0;
}
.page-about .about-today__foot {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(246, 243, 234, .68);
}
.page-about .about-today__foot a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 75, .5);
  transition: border-color var(--dur) var(--ease);
}
.page-about .about-today__foot a:hover,
.page-about .about-today__foot a:focus-visible {
  border-bottom-color: var(--gold);
}

/* ---------- 习惯 ---------- */
.page-about .about-habits {
  background: var(--porcelain);
  padding: 56px 0;
}
.page-about .about-habits__intro {
  margin-bottom: 28px;
}
.page-about .about-habits__title {
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1.3;
  color: var(--green-deep);
  margin: 0 0 12px;
  font-weight: 600;
}
.page-about .about-habits__lead {
  font-size: 15px;
  line-height: 1.75;
  color: var(--about-ink-soft);
  margin: 0;
  max-width: 56ch;
}
.page-about .about-habits__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-habit {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 20px 22px;
  box-shadow: var(--shadow-soft);
}
.page-about .about-habit .tag {
  display: inline-block;
  margin-bottom: 12px;
}
.page-about .about-habit__title {
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.45;
  color: var(--green-deep);
  margin: 0 0 10px;
  font-weight: 600;
}
.page-about .about-habit__text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--about-ink-soft);
  margin: 0;
}
.page-about .about-habit__text a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}
.page-about .about-habit__text a:hover,
.page-about .about-habit__text a:focus-visible {
  border-bottom-color: var(--amber);
}

/* ---------- 接下来 ---------- */
.page-about .about-next {
  background: var(--cream);
  border-top: 1px solid var(--line);
  padding: 56px 0 60px;
}
.page-about .about-next__head {
  margin-bottom: 30px;
}
.page-about .about-next__title {
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1.3;
  color: var(--green-deep);
  margin: 0 0 12px;
  font-weight: 600;
}
.page-about .about-next__lead {
  font-size: 15px;
  line-height: 1.75;
  color: var(--about-ink-soft);
  margin: 0;
  max-width: 56ch;
}
.page-about .about-next__bands {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.page-about .about-band {
  padding: 24px 22px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.page-about .about-band::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gold);
}
.page-about .about-band--deep {
  background: var(--green-deep);
  border-color: var(--green-deep);
}
.page-about .about-band--mid {
  background: var(--green);
  border-color: var(--green);
}
.page-about .about-band--light {
  background: var(--porcelain);
}
.page-about .about-band__num {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
  margin: 0 0 12px;
}
.page-about .about-band--light .about-band__num {
  color: var(--amber);
}
.page-about .about-band__title {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.4;
  margin: 0 0 10px;
  font-weight: 600;
}
.page-about .about-band--deep .about-band__title,
.page-about .about-band--mid .about-band__title {
  color: var(--porcelain);
}
.page-about .about-band--light .about-band__title {
  color: var(--green-deep);
}
.page-about .about-band__text {
  font-size: 14.5px;
  line-height: 1.75;
  margin: 0;
}
.page-about .about-band--deep .about-band__text,
.page-about .about-band--mid .about-band__text {
  color: rgba(246, 243, 234, .78);
}
.page-about .about-band--light .about-band__text {
  color: var(--about-ink-soft);
}
.page-about .about-band__text a {
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: opacity var(--dur) var(--ease);
}
.page-about .about-band--deep .about-band__text a,
.page-about .about-band--mid .about-band__text a {
  color: var(--gold);
}
.page-about .about-band--light .about-band__text a {
  color: var(--green);
}
.page-about .about-band__text a:hover,
.page-about .about-band__text a:focus-visible {
  opacity: .72;
}
.page-about .about-next__foot {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-ink-soft);
}
.page-about .about-next__foot a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}
.page-about .about-next__foot a:hover,
.page-about .about-next__foot a:focus-visible {
  border-bottom-color: var(--amber);
}

/* ---------- 焦点可见 ---------- */
.page-about a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- 窄屏保护 ---------- */
.page-about .about-today__grid,
.page-about .about-habits__list,
.page-about .about-next__bands {
  min-width: 0;
}
.page-about .about-fact__text,
.page-about .about-habit__text,
.page-about .about-band__text,
.page-about .about-node__text {
  overflow-wrap: break-word;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__inner {
    padding: 40px 0 64px;
    gap: 40px;
  }
  .page-about .about-hero__title {
    font-size: 42px;
  }
  .page-about .about-hero__watermark {
    font-size: 132px;
  }
  .page-about .about-summary__list {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .page-about .about-today__grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .about-habits__list {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .page-about .about-next__bands {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .page-about .about-band:last-child {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面：错位时间轴 ---------- */
@media (min-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
    padding: 56px 0 80px;
  }
  .page-about .about-hero__title {
    font-size: 52px;
  }
  .page-about .about-hero__watermark {
    font-size: 180px;
    right: -10px;
  }
  .page-about .about-summary {
    padding: 56px 0;
  }
  .page-about .about-summary__list {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-summary__link {
    grid-template-columns: 1fr;
    grid-template-areas:
      "num"
      "label"
      "desc";
    row-gap: 6px;
    padding: 18px 18px 20px;
    height: 100%;
  }
  .page-about .about-timeline {
    padding: 72px 0 52px;
  }
  .page-about .about-timeline__list {
    padding: 8px 0 0;
  }
  .page-about .about-timeline__list::before {
    left: 50%;
    transform: translateX(-1px);
  }
  .page-about .about-node {
    padding: 0 0 56px 0;
    width: 50%;
  }
  .page-about .about-node--left {
    padding-right: 56px;
    text-align: right;
    margin-left: 0;
  }
  .page-about .about-node--right {
    padding-left: 56px;
    margin-left: 50%;
    text-align: left;
  }
  .page-about .about-node__rail {
    left: auto;
    top: 4px;
  }
  .page-about .about-node--left .about-node__rail {
    right: -8px;
  }
  .page-about .about-node--right .about-node__rail {
    left: -8px;
  }
  .page-about .about-node__text {
    margin-left: auto;
    margin-right: auto;
  }
  .page-about .about-node--left .about-node__text {
    margin-left: auto;
    margin-right: 0;
  }
  .page-about .about-node--right .about-node__text {
    margin-left: 0;
    margin-right: auto;
  }
  .page-about .about-node__facts li {
    justify-content: inherit;
  }
  .page-about .about-node--left .about-node__facts li {
    flex-direction: row-reverse;
  }
  .page-about .about-node--left .about-node__facts .mono {
    text-align: left;
  }
  .page-about .about-node--left .about-node__figure {
    margin-left: auto;
    max-width: 92%;
  }
  .page-about .about-node--right .about-node__figure {
    margin-right: auto;
    max-width: 92%;
  }
  .page-about .about-today {
    padding: 72px 0 64px;
  }
  .page-about .about-today__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-habits {
    padding: 72px 0;
  }
  .page-about .about-habits__list {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
  .page-about .about-next {
    padding: 72px 0 76px;
  }
  .page-about .about-next__bands {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .page-about .about-band:last-child {
    grid-column: auto;
  }
}

/* ---------- 动效退让 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-summary__link,
  .page-about .about-node__dot,
  .page-about .about-today__foot a,
  .page-about .about-habit__text a,
  .page-about .about-band__text a,
  .page-about .about-next__foot a {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>