.page-about {
  --about-hair: rgba(140, 153, 181, 0.22);
  --about-lime-glow: rgba(198, 255, 61, 0.32);
  --about-soft: rgba(23, 38, 74, 0.62);
  color: var(--paper);
}

.page-about .about-crumb {
  padding-top: clamp(16px, 3vw, 30px);
  padding-bottom: clamp(6px, 1.5vw, 14px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-bottom: clamp(28px, 5vw, 60px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 70% at 82% 0%, rgba(53, 224, 208, 0.15), transparent 66%),
    radial-gradient(55% 55% at 0% 45%, rgba(226, 58, 46, 0.14), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: end;
}

.page-about .kicker {
  display: inline-block;
  margin: 0 0 10px;
  font-family: var(--font-hand);
  font-size: clamp(14px, 1.6vw, 17px);
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-about .about-hero__title {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.2vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-about .about-hero__lede {
  max-width: 46ch;
  margin: 0;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: rgba(248, 243, 231, 0.84);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(22px, 3.4vw, 36px) 0 0;
  padding: clamp(16px, 2.4vw, 22px) 0 0;
  list-style: none;
  border-top: 1px solid var(--about-hair);
}

.page-about .stat__num {
  display: block;
  font-size: clamp(20px, 2.8vw, 32px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--lime);
}

.page-about .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--mist);
}

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

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--about-hair);
  border-radius: 46px 10px 46px 46px;
}

.page-about .about-hero__figure figcaption {
  margin-top: 12px;
  font-family: var(--font-hand);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(233, 223, 201, 0.82);
}

/* ---------- 呼吸留白 + 手写标签 ---------- */
.page-about .about-breath {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: clamp(30px, 6vw, 70px) 0;
  font-family: var(--font-hand);
  font-size: clamp(17px, 2.2vw, 24px);
  line-height: 1.4;
  color: var(--sand);
}

.page-about .about-breath::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, var(--about-lime-glow), transparent 92%);
}

/* ---------- 通用区块头 ---------- */
.page-about .about-head {
  max-width: 760px;
  margin-bottom: clamp(22px, 3.6vw, 42px);
}

.page-about .section__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.page-about .section__lede {
  margin: 0;
  font-size: clamp(14px, 1.1vw, 16.5px);
  line-height: 1.85;
  color: rgba(248, 243, 231, 0.76);
}

/* ---------- 编辑席 / 数据台 ---------- */
.page-about .about-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 34px);
}

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

.page-about .about-duo__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--about-hair);
  border-radius: 10px 42px 42px 42px;
}

.page-about .about-duo__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-duo__panels {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .about-panel {
  padding: clamp(18px, 2.6vw, 28px);
  background: linear-gradient(158deg, rgba(23, 38, 74, 0.92), rgba(14, 24, 51, 0.78));
  border: 1px solid var(--about-hair);
  border-radius: var(--r-lg);
}

.page-about .about-panel h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .about-panel h3::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(198, 255, 61, 0.16);
}

.page-about .about-duo__panels .about-panel:nth-child(2) h3::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 224, 208, 0.16);
}

.page-about .about-panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(248, 243, 231, 0.78);
}

.page-about .about-panel__list {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-panel__list li {
  position: relative;
  padding-left: 17px;
}

.page-about .about-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--gold);
}

/* ---------- 四道工序 ---------- */
.page-about .about-steps {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: about-step;
}

.page-about .about-step details {
  background: var(--about-soft);
  border: 1px solid var(--about-hair);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: clamp(14px, 2vw, 18px) clamp(16px, 2.4vw, 22px);
  font-size: clamp(15px, 1.5vw, 18px);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--lime);
}

.page-about .about-step details[open] summary::after {
  content: "−";
}

.page-about .about-step details[open] summary {
  border-bottom: 1px solid var(--about-hair);
}

.page-about .about-step__num {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-about .about-step details p {
  margin: 0;
  padding: clamp(14px, 2vw, 18px) clamp(16px, 2.4vw, 22px) clamp(16px, 2.4vw, 22px);
  font-size: 14px;
  line-height: 1.85;
  color: rgba(248, 243, 231, 0.74);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  padding-top: clamp(34px, 6vw, 74px);
}

.page-about .about-tl {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 40px);
  align-items: start;
}

.page-about .about-tl__index {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-about .about-tl__year {
  flex: 0 0 auto;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-about .about-tl__year:hover,
.page-about .about-tl__year:focus-visible {
  color: var(--lime);
  border-color: rgba(198, 255, 61, 0.42);
  background: rgba(198, 255, 61, 0.08);
}

.page-about .about-tl__list {
  display: grid;
  gap: clamp(14px, 2.4vw, 24px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-tl__item {
  position: relative;
  padding: clamp(18px, 2.6vw, 28px) clamp(18px, 2.6vw, 28px) clamp(18px, 2.6vw, 28px) clamp(22px, 3vw, 34px);
  background: linear-gradient(158deg, rgba(23, 38, 74, 0.9), rgba(14, 24, 51, 0.66));
  border: 1px solid var(--about-hair);
  border-radius: var(--r-lg);
  scroll-margin-top: 104px;
}

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(22px, 2.6vw, 30px);
  width: 3px;
  height: 34px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--lime), rgba(198, 255, 61, 0));
}

.page-about .about-tl__item h3 {
  margin: 10px 0 8px;
  font-size: clamp(16px, 1.9vw, 21px);
  font-weight: 800;
  line-height: 1.35;
}

.page-about .about-tl__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(248, 243, 231, 0.76);
}

.page-about .about-tl__item--figure {
  padding: 0;
  background: none;
  border: 0;
}

.page-about .about-tl__item--figure::before {
  content: none;
}

.page-about .about-tl__item--figure figure {
  margin: 0;
}

.page-about .about-tl__item--figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--about-hair);
  border-radius: var(--r-lg);
}

.page-about .about-tl__item--figure figcaption {
  margin-top: 10px;
  font-family: var(--font-hand);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(233, 223, 201, 0.8);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding-top: clamp(32px, 5vw, 60px);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
}

.page-about .about-team__stats {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .about-team__stat {
  padding: clamp(16px, 2.2vw, 24px);
  background: rgba(233, 223, 201, 0.05);
  border-left: 3px solid var(--lime);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}

.page-about .about-team__num {
  display: block;
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--paper);
}

.page-about .about-team__label {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-team__roles {
  padding: clamp(18px, 2.6vw, 28px);
  background: linear-gradient(158deg, rgba(23, 38, 74, 0.9), rgba(14, 24, 51, 0.68));
  border: 1px solid var(--about-hair);
  border-radius: var(--r-lg);
}

.page-about .about-team__roles-title {
  margin: 0 0 14px;
  font-family: var(--font-hand);
  font-size: 17px;
  color: var(--gold);
}

.page-about .about-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-about .about-team__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(248, 243, 231, 0.72);
}

/* ---------- 三件事 ---------- */
.page-about .about-promise {
  padding-top: clamp(34px, 6vw, 74px);
  padding-bottom: clamp(30px, 5vw, 60px);
}

.page-about .about-promise__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-promise__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--ink-2);
  border-radius: var(--r-lg);
  border-top: 3px solid var(--chili);
}

.page-about .about-promise__card--lime {
  border-top-color: var(--lime);
}

.page-about .about-promise__card--violet {
  border-top-color: var(--violet);
}

.page-about .about-promise__card h3 {
  margin: 0;
  font-size: clamp(17px, 1.9vw, 21px);
  font-weight: 800;
}

.page-about .about-promise__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(248, 243, 231, 0.76);
}

.page-about .about-promise__card .btn {
  margin-top: auto;
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: clamp(20px, 3vw, 32px);
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 3vw, 32px);
  background:
    radial-gradient(80% 140% at 100% 0%, rgba(138, 123, 255, 0.22), transparent 70%),
    rgba(23, 38, 74, 0.72);
  border: 1px solid rgba(138, 123, 255, 0.32);
  border-radius: var(--r-lg);
}

.page-about .about-cta p {
  flex: 1 1 260px;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(248, 243, 231, 0.84);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-about .about-promise__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about .about-duo {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  }

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

  .page-about .about-promise__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-tl {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: clamp(24px, 3.4vw, 48px);
  }

  .page-about .about-tl__index {
    position: sticky;
    top: 96px;
    flex-direction: column;
    align-items: flex-start;
    overflow: visible;
    padding-bottom: 0;
  }
}

@media (max-width: 419px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-hero__stats li:last-child {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tl__year {
    transition: none;
  }
}
<<<END>>>