.page-about {
  --about-pad: clamp(28px, 5vw, 56px);
  color: var(--paper);
}

.page-about .about-hero {
  padding: clamp(28px, 5vw, 64px) 0 clamp(48px, 7vw, 104px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}

.page-about .about-hero__eyebrow {
  margin: 0 0 clamp(16px, 2.5vw, 28px);
  color: var(--green);
}

.page-about .about-hero__title {
  margin: 0;
  font-size: clamp(44px, 12vw, 116px);
  font-weight: 200;
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.page-about .about-hero__title em {
  font-style: normal;
  font-weight: 800;
  color: var(--green);
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 42ch;
  padding-left: clamp(16px, 2.5vw, 22px);
  border-left: 2px solid var(--green);
  font-size: clamp(16px, 2.1vw, 18px);
  line-height: 1.8;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--ink-800);
  padding: 16px 18px;
  min-width: 0;
}

.page-about .about-hero__num {
  font-size: clamp(26px, 5vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--paper);
}

.page-about .about-hero__unit {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .section + .section {
  margin-top: var(--sec-gap);
}

/* 01 前瞻流程 */
.page-about .about-steps {
  list-style: none;
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-step {
  position: relative;
  background: var(--ink-800);
  padding: clamp(22px, 3.5vw, 34px) clamp(20px, 3vw, 30px);
  border-top: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-step__idx {
  display: block;
  color: var(--mist);
  margin-bottom: 12px;
}

.page-about .about-step__title {
  margin: 0 0 10px;
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-about .about-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 46ch;
}

@media (hover: hover) {
  .page-about .about-step:hover {
    border-top-color: var(--green);
    background: #131b26;
  }
}

/* 02 团队 */
.page-about .about-team__media {
  margin: clamp(28px, 4vw, 44px) 0 clamp(28px, 4vw, 44px);
  aspect-ratio: 3 / 2;
}

.page-about .about-roles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-role {
  background: var(--ink-800);
  padding: clamp(22px, 3.4vw, 32px);
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-role__idx {
  display: block;
  color: var(--mist);
  margin-bottom: 14px;
}

.page-about .about-role__title {
  margin: 0 0 8px;
  font-size: clamp(19px, 2.8vw, 23px);
  font-weight: 700;
}

.page-about .about-role__count {
  margin: 0 0 14px;
  font-size: clamp(30px, 6vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--green);
}

.page-about .about-role__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 44ch;
}

@media (hover: hover) {
  .page-about .about-role:hover {
    border-left-color: var(--green);
    transform: translateX(2px);
  }
}

/* 03 版本演进 */
.page-about .about-version__media {
  margin: clamp(28px, 4vw, 44px) 0 clamp(36px, 5vw, 60px);
  aspect-ratio: 2 / 1;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--green) 0%, var(--line) 55%, rgba(30, 42, 56, 0) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 clamp(30px, 4.5vw, 48px) 34px;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 15px;
  height: 15px;
  border: 1px solid var(--green);
  background: var(--ink-900);
  border-radius: 50%;
}

.page-about .about-timeline__item::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 11px;
  width: 5px;
  height: 5px;
  background: var(--green);
  border-radius: 50%;
  transition: transform var(--dur) var(--ease);
}

.page-about .about-timeline__ver {
  display: block;
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--green);
  letter-spacing: 0.04em;
}

.page-about .about-timeline__name {
  margin: 12px 0 8px;
  font-size: clamp(18px, 2.6vw, 22px);
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-timeline__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 56ch;
}

@media (hover: hover) {
  .page-about .about-timeline__item:hover::after {
    transform: scale(1.9);
  }
}

/* 04 赛季阶段 */
.page-about .about-phase-grid {
  margin-top: clamp(32px, 5vw, 56px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-phase {
  background: var(--ink-800);
  padding: clamp(22px, 3.4vw, 32px);
  border-bottom: 3px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}

.page-about .about-phase__tag {
  display: inline-block;
  margin-bottom: 16px;
}

.page-about .about-phase--pre {
  border-bottom-color: var(--blue);
}

.page-about .about-phase--reg {
  border-bottom-color: var(--green);
}

.page-about .about-phase--sprint {
  border-bottom-color: var(--red);
}

.page-about .about-phase--final {
  border-bottom-color: var(--chili);
}

.page-about .about-phase__title {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.8vw, 23px);
  font-weight: 700;
}

.page-about .about-phase__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 42ch;
}

/* 05 本地协作 */
.page-about .about-local__band {
  background: var(--green-deep);
  border: 1px solid var(--line);
  padding: var(--about-pad);
}

.page-about .about-local__grid {
  margin-top: clamp(28px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

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

.page-about .about-network__links line {
  stroke: var(--line);
  stroke-width: 1;
}

.page-about .about-network__node {
  fill: var(--ink-800);
  stroke: var(--line);
  stroke-width: 1;
}

.page-about .about-network__node--hub {
  fill: var(--ink-900);
  stroke: var(--green);
  stroke-width: 2;
}

.page-about .about-network__label {
  fill: var(--mist);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-about .about-network__label--hub {
  fill: var(--green);
  font-size: 15px;
  font-weight: 700;
}

.page-about .about-local__subtitle {
  margin: 0 0 18px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--green);
}

.page-about .about-partners {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-about .about-partner {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num label"
    "text text";
  align-items: baseline;
  column-gap: 12px;
  row-gap: 8px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

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

.page-about .about-partner__num {
  grid-area: num;
  font-size: clamp(24px, 5vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--green);
}

.page-about .about-partner__label {
  grid-area: label;
  font-size: 15px;
  color: var(--paper);
}

.page-about .about-partner__text {
  grid-area: text;
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
  max-width: 46ch;
}

.page-about .about-local__media {
  margin: clamp(28px, 4vw, 44px) 0 0;
  aspect-ratio: 4 / 3;
}

/* 06 里程碑 */
.page-about .about-milestones {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
}

.page-about .about-milestone {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-top: 1px solid var(--line);
}

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

.page-about .about-milestone__mark {
  font-size: clamp(20px, 3.6vw, 26px);
  font-weight: 700;
  line-height: 1;
  color: var(--blue);
  letter-spacing: 0.06em;
}

.page-about .about-milestone__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.5vw, 20px);
  font-weight: 700;
}

.page-about .about-milestone__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 58ch;
}

.page-about .about-next {
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(24px, 4vw, 40px);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
}

.page-about .about-next__text {
  margin: 0 0 20px;
  font-size: clamp(17px, 2.6vw, 20px);
  line-height: 1.7;
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-next__links .btn {
  min-width: 0;
}

@media (min-width: 760px) {
  .page-about .about-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .about-partner {
    grid-template-columns: auto 1fr;
    grid-template-areas: "num label" "num text";
  }

  .page-about .about-milestone {
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }
}

@media (min-width: 980px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.9fr);
    gap: clamp(32px, 5vw, 80px);
  }

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

  .page-about .about-phase-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-local__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about .about-timeline {
    padding-left: clamp(0px, 2vw, 24px);
  }
}
<<<END>>>