.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 5vw, 56px) 0 clamp(36px, 6vw, 72px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 18%, rgba(34, 224, 255, 0.18), transparent 46%),
    linear-gradient(118deg, rgba(139, 92, 255, 0.16) 0%, rgba(6, 11, 30, 0) 58%);
  clip-path: polygon(0 0, 100% 0, 100% 78%, 0 100%);
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-about .about-hero h1 {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 15em;
}

.page-about .about-hero h1::after {
  content: "";
  display: block;
  width: 96px;
  height: 4px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.page-about .about-hero__lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 2.3vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

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

.page-about .about-hero__panel {
  display: grid;
  gap: 2px;
  padding: clamp(16px, 3vw, 26px);
  background: linear-gradient(160deg, rgba(34, 224, 255, 0.10), rgba(139, 92, 255, 0.16) 62%, rgba(12, 21, 51, 0.9));
  border: 1px solid var(--edge);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-about .about-hero__fact {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 2px 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(30, 44, 90, 0.9);
}

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

.page-about .about-hero__fact-key {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .about-hero__fact-val {
  grid-row: 1 / span 2;
  grid-column: 2;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4vw, 30px);
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-about .about-hero__fact-note {
  font-size: 12.5px;
  color: var(--muted);
}

/* 为什么做这个站 */
.page-about .about-why__grid {
  align-items: start;
}

.page-about .about-why__main .section__title {
  margin-top: 10px;
}

.page-about .about-why__side {
  margin-top: 8px;
}

.page-about .about-why__side-title {
  margin: 0 0 16px;
  font-size: 18px;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-about .about-why__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-why__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  padding-top: 14px;
  border-top: 1px dashed rgba(30, 44, 90, 0.95);
}

.page-about .about-why__list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-why__tag {
  display: inline-block;
  padding: 2px 7px;
  font-size: 11px;
  color: var(--cyan);
  border: 1px solid rgba(34, 224, 255, 0.38);
}

.page-about .about-why__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* 运营历程 */
.page-about .about-journey__banner {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-about .about-journey__head {
  max-width: 46em;
}

.page-about .about-journey__tabs {
  display: grid;
  gap: clamp(16px, 3vw, 30px);
  grid-template-columns: 1fr;
  margin-top: clamp(22px, 4vw, 36px);
}

.page-about .about-journey__rail {
  position: relative;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-about .about-journey__rail::-webkit-scrollbar {
  height: 4px;
}

.page-about .about-journey__rail::-webkit-scrollbar-thumb {
  background: var(--edge);
}

.page-about .about-journey__tab {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  background: var(--surface);
  border: 1px solid var(--edge);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-journey__tab:hover {
  color: var(--text);
  border-color: rgba(34, 224, 255, 0.5);
  transform: translateY(-2px);
}

.page-about .about-journey__tab[aria-selected="true"] {
  color: var(--text);
  border-color: var(--cyan);
  background: linear-gradient(120deg, rgba(34, 224, 255, 0.16), rgba(139, 92, 255, 0.16));
  box-shadow: 0 0 0 1px rgba(34, 224, 255, 0.25) inset;
}

.page-about .about-journey__code {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-about .about-journey__tab[aria-selected="true"] .about-journey__code {
  color: var(--text);
}

.page-about .about-journey__tab-text {
  white-space: nowrap;
}

.page-about .about-journey__panels {
  display: grid;
  gap: 14px;
}

.page-about .about-journey__panel {
  border-left: 3px solid var(--cyan);
}

.page-about .about-journey__panel h3 {
  margin: 0 0 10px;
  font-size: clamp(19px, 3vw, 22px);
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-about .about-journey__panel p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-journey__points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .about-journey__points li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  padding: 8px 0;
  border-top: 1px dashed rgba(30, 44, 90, 0.95);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-about .about-journey__points .mono {
  flex: 0 0 auto;
  padding: 1px 7px;
  font-size: 11px;
  color: var(--cyan);
  border: 1px solid rgba(34, 224, 255, 0.35);
}

/* 团队 */
.page-about .about-team__stage {
  display: grid;
  gap: clamp(20px, 4vw, 36px);
  grid-template-columns: 1fr;
  align-items: start;
  margin-top: clamp(20px, 4vw, 32px);
}

.page-about .about-team__bars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-team__bar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  padding: 16px 18px;
  background: linear-gradient(120deg, rgba(12, 21, 51, 0.98), rgba(16, 27, 61, 0.9));
  border: 1px solid var(--edge);
  border-left: 3px solid var(--violet);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-team__bar:hover {
  border-left-color: var(--cyan);
  transform: translateX(3px);
}

.page-about .about-team__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-about .about-team__num {
  font-size: 14px;
  color: var(--cyan);
}

.page-about .about-team__track {
  grid-column: 1 / -1;
  display: block;
  height: 10px;
  background: rgba(30, 44, 90, 0.85);
  overflow: hidden;
}

.page-about .about-team__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.page-about .about-team__fill--a {
  width: 46%;
}

.page-about .about-team__fill--b {
  width: 23%;
}

.page-about .about-team__fill--c {
  width: 31%;
}

.page-about .about-team__desc {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-team__figure {
  margin: 0;
}

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

.page-about .about-team__prose {
  margin-top: clamp(18px, 3vw, 28px);
  max-width: 40em;
}

/* 内容工序 */
.page-about .about-craft__steps {
  list-style: none;
  margin: clamp(20px, 4vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  counter-reset: craft;
}

.page-about .about-craft__step {
  position: relative;
  padding: 20px 18px 22px;
  background: var(--surface);
  border: 1px solid var(--edge);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-craft__step:hover {
  border-color: rgba(34, 224, 255, 0.55);
  transform: translateY(-4px);
}

.page-about .about-craft__no {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--violet);
}

.page-about .about-craft__step h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.45;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-about .about-craft__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .about-craft__note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
  padding: 16px 18px;
  border: 1px dashed rgba(34, 224, 255, 0.35);
  background: rgba(34, 224, 255, 0.05);
}

.page-about .about-craft__note p {
  margin: 0;
  flex: 1 1 18em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

/* 供稿伙伴 */
.page-about .about-partners__grid {
  align-items: center;
}

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

.page-about .about-partners__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-partners__list .mono {
  flex: 0 0 auto;
  padding: 1px 8px;
  font-size: 11px;
  color: var(--violet);
  border: 1px solid rgba(139, 92, 255, 0.45);
}

.page-about .about-partners__figure {
  margin: 0;
}

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

/* 路线图 */
.page-about .about-roadmap__grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  margin-top: clamp(20px, 4vw, 32px);
}

.page-about .about-roadmap__card {
  padding: 18px 18px 6px;
  background: linear-gradient(150deg, rgba(16, 27, 61, 0.95), rgba(12, 21, 51, 0.98));
  border: 1px solid var(--edge);
  border-top: 3px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: border-color var(--dur) var(--ease);
}

.page-about .about-roadmap__card[open] {
  border-color: rgba(255, 122, 47, 0.55);
}

.page-about .about-roadmap__card summary {
  display: grid;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  padding-bottom: 14px;
}

.page-about .about-roadmap__card summary::-webkit-details-marker {
  display: none;
}

.page-about .about-roadmap__card summary::after {
  content: "展开";
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-about .about-roadmap__card[open] summary::after {
  content: "收起";
  color: var(--orange);
}

.page-about .about-roadmap__code {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-about .about-roadmap__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-about .about-roadmap__card p {
  margin: 0 0 18px;
  padding-top: 14px;
  border-top: 1px dashed rgba(30, 44, 90, 0.95);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* 结尾 */
.page-about .about-close__inner {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  align-items: center;
  padding: clamp(22px, 4vw, 36px);
  background:
    radial-gradient(circle at 12% 20%, rgba(34, 224, 255, 0.16), transparent 55%),
    linear-gradient(120deg, rgba(139, 92, 255, 0.16), rgba(12, 21, 51, 0.96));
  border: 1px solid var(--edge);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-about .about-close__text .section__title {
  margin: 0 0 10px;
  font-size: clamp(22px, 4vw, 30px);
}

.page-about .about-close__text p {
  margin: 0;
  max-width: 36em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

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

@media (min-width: 700px) {
  .page-about .about-craft__steps {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-hero__panel {
    margin-top: 46px;
  }

  .page-about .about-journey__tabs {
    grid-template-columns: minmax(210px, 268px) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
  }

  .page-about .about-journey__rail {
    flex-direction: column;
    overflow: visible;
    gap: 12px;
    padding-bottom: 0;
    padding-left: 22px;
  }

  .page-about .about-journey__rail::before {
    content: "";
    position: absolute;
    left: 6px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: linear-gradient(180deg, var(--cyan), var(--violet) 60%, rgba(139, 92, 255, 0));
  }

  .page-about .about-journey__tab {
    width: 100%;
    flex: 0 0 auto;
    justify-content: flex-start;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  }

  .page-about .about-journey__tab::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 50%;
    width: 9px;
    height: 9px;
    margin-top: -4.5px;
    background: var(--bg);
    border: 2px solid var(--edge);
    transform: rotate(45deg);
    transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
  }

  .page-about .about-journey__tab {
    position: relative;
  }

  .page-about .about-journey__tab[aria-selected="true"]::before {
    background: var(--cyan);
    border-color: var(--cyan);
  }

  .page-about .about-team__stage {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-team__figure {
    margin-top: 6px;
  }

  .page-about .about-close__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 1080px) {
  .page-about .about-craft__steps {
    grid-template-columns: repeat(4, 1fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-journey__tab,
  .page-about .about-team__bar,
  .page-about .about-craft__step {
    transition: none;
  }

  .page-about .about-journey__tab:hover,
  .page-about .about-team__bar:hover,
  .page-about .about-craft__step:hover {
    transform: none;
  }
}
<<<END>>>