.page-about {
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: calc(var(--header-h) + 40px) 0 var(--s-8);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(to right, rgba(244, 241, 236, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(244, 241, 236, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
}
.page-about .hero-cut {
  position: absolute;
  right: -16%;
  bottom: -26%;
  width: 70%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(155deg, var(--terra) 0%, var(--terra-deep) 100%);
  clip-path: polygon(32% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.92;
}
.page-about .hero-inner {
  position: relative;
}

.page-about .about-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2);
  margin: 0 0 var(--s-5);
  padding: 0;
  list-style: none;
  font-size: 13px;
}
.page-about .about-crumb li {
  display: flex;
  align-items: center;
  gap: var(--s-2);
}
.page-about .about-crumb li + li::before {
  content: "/";
  color: rgba(244, 241, 236, 0.34);
}
.page-about .about-crumb a {
  color: rgba(244, 241, 236, 0.68);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.page-about .about-crumb a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}
.page-about .about-crumb [aria-current="page"] {
  color: var(--paper);
}

.page-about .hero-ann {
  margin: 0 0 var(--s-4);
  color: var(--lime);
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-about .about-hero h1 {
  max-width: 16em;
  margin: 0 0 var(--s-5);
  font-size: clamp(34px, 8vw, 68px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.02em;
}
.page-about .hero-lede {
  max-width: 46ch;
  margin: 0 0 var(--s-7);
  font-size: 16px;
  line-height: 1.75;
  color: rgba(244, 241, 236, 0.82);
}

.page-about .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
  background: var(--line-dark);
}
.page-about .hero-facts li {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  padding: var(--s-4) var(--s-4) var(--s-4) 0;
  background: var(--ink);
}
.page-about .hero-facts .mono {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}
.page-about .hero-facts em {
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(244, 241, 236, 0.6);
}

/* ---------- 通用章节 ---------- */
.page-about .about-sec {
  padding: var(--s-8) 0;
  border-bottom: 1px solid var(--line);
}
.page-about .sec-head {
  margin-bottom: var(--s-6);
}
.page-about .sec-head .ann {
  margin: 0 0 var(--s-3);
  color: var(--terra);
  font-family: var(--font-mono);
  letter-spacing: 0.16em;
}
.page-about .sec-head h2 {
  max-width: 20em;
  margin: 0;
  font-size: clamp(26px, 5.4vw, 44px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
}
.page-about .sec-sub {
  max-width: 46ch;
  margin: var(--s-4) 0 0;
  color: var(--stone);
  line-height: 1.75;
}

/* ---------- 01 我们在做的事 ---------- */
.page-about .sec-what {
  background: var(--paper);
}
.page-about .what-lede {
  max-width: 46ch;
  margin: 0 0 var(--s-6);
  font-size: 18px;
  line-height: 1.75;
  color: var(--stone);
}
.page-about .who-cards {
  display: grid;
  gap: var(--s-4);
}
.page-about .who {
  padding: var(--s-5);
  background: var(--graphite);
  color: var(--paper);
  border-left: 2px solid var(--terra);
  transition: border-left-width var(--dur-fast) var(--ease);
}
.page-about .who:hover {
  border-left-width: 4px;
}
.page-about .who h3 {
  margin: 0 0 var(--s-3);
  font-size: 20px;
  line-height: 1.3;
}
.page-about .who p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 241, 236, 0.76);
}
.page-about .who-tag {
  margin: 0 0 var(--s-3);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}
.page-about .who--accent {
  background: var(--terra);
  border-left-color: var(--ink);
}
.page-about .who--accent .who-tag {
  color: var(--ink);
}
.page-about .who--accent p {
  color: rgba(15, 20, 22, 0.84);
}

/* ---------- 02 发展历程 ---------- */
.page-about .sec-path {
  background: linear-gradient(180deg, #EDE9E2 0%, var(--paper) 100%);
}
.page-about .path-grid {
  display: grid;
  gap: var(--s-6);
}
.page-about .path-figure {
  margin: 0;
}
.page-about .path-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-about .path-figure figcaption {
  margin-top: var(--s-3);
  padding-left: var(--s-4);
  border-left: 2px solid var(--terra);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-about .tl {
  position: relative;
  margin: 0;
  padding: 0 0 0 var(--s-5);
  list-style: none;
}
.page-about .tl::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}
.page-about .tl-item {
  position: relative;
  padding-bottom: var(--s-6);
}
.page-about .tl-item:last-child {
  padding-bottom: 0;
}
.page-about .tl-node {
  position: absolute;
  left: -20px;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--terra);
  transform: translateX(-50%) rotate(45deg);
}
.page-about .tl-item.is-major .tl-node {
  width: 14px;
  height: 14px;
  top: 4px;
  background: var(--terra-deep);
  outline: 1px solid var(--terra);
  outline-offset: 2px;
}
.page-about .tl-body {
  display: flex;
  gap: var(--s-4);
  padding: var(--s-4) var(--s-4) var(--s-4) var(--s-5);
  background: #FFFFFF;
  border: 1px solid var(--line);
  transition: border-color var(--dur-fast) var(--ease);
}
.page-about .tl-item.is-major .tl-body {
  background: var(--graphite);
  color: var(--paper);
  border-color: var(--graphite);
}
.page-about .tl-item:hover .tl-body {
  border-color: var(--terra);
}
.page-about .tl-year {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--terra);
}
.page-about .tl-item.is-major .tl-year {
  color: var(--lime);
}
.page-about .tl-text h3 {
  margin: 0 0 var(--s-2);
  font-size: 19px;
  line-height: 1.3;
}
.page-about .tl-text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}
.page-about .tl-item.is-major .tl-text p {
  color: rgba(244, 241, 236, 0.74);
}
.page-about .tl-more {
  margin-top: var(--s-3);
  border-top: 1px solid var(--line);
  padding-top: var(--s-3);
}
.page-about .tl-item.is-major .tl-more {
  border-top-color: var(--line-dark);
}
.page-about .tl-more summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--lake);
  list-style: none;
}
.page-about .tl-more summary::-webkit-details-marker {
  display: none;
}
.page-about .tl-more summary::before {
  content: "+ ";
  font-family: var(--font-mono);
}
.page-about .tl-more[open] summary::before {
  content: "− ";
}
.page-about .tl-item.is-major .tl-more summary {
  color: var(--lime);
}
.page-about .tl-more p {
  margin-top: var(--s-3);
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}
.page-about .tl-item.is-major .tl-more p {
  color: rgba(244, 241, 236, 0.74);
}

/* ---------- 03 团队与分工 ---------- */
.page-about .sec-team {
  background: var(--paper);
}
.page-about .role-band {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 84px;
  margin-bottom: var(--s-5);
}
.page-about .rb {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-width: 0;
  padding: var(--s-2) var(--s-2) var(--s-3);
  position: relative;
}
.page-about .rb-1 { flex: 12; height: 100%; background: var(--terra); }
.page-about .rb-2 { flex: 6;  height: 66%;  background: var(--lake); }
.page-about .rb-3 { flex: 4;  height: 48%;  background: var(--terra-deep); }
.page-about .rb-4 { flex: 5;  height: 56%;  background: var(--stone); }
.page-about .rb-5 { flex: 4;  height: 48%;  background: var(--lake); }
.page-about .rb-6 { flex: 7;  height: 76%;  background: var(--terra); }
.page-about .rb-num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  color: var(--paper);
}
.page-about .rb-3 .rb-num,
.page-about .rb-1 .rb-num,
.page-about .rb-6 .rb-num {
  color: var(--paper);
}
.page-about .rb-lab {
  display: none;
  font-style: normal;
  font-size: 12px;
  color: rgba(244, 241, 236, 0.88);
}

.page-about .team-tabs {
  position: relative;
  margin-bottom: var(--s-7);
}
.page-about .tab-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.page-about .tab-labels {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-bottom: var(--s-5);
}
.page-about .tab-labels label {
  cursor: pointer;
  padding: 8px 14px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--stone);
  background: transparent;
  border: 1px solid var(--line);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.page-about .tab-labels label:hover {
  color: var(--ink);
  border-color: var(--terra);
}
.page-about #role-editor:checked ~ .tab-labels label[for="role-editor"],
.page-about #role-proof:checked ~ .tab-labels label[for="role-proof"],
.page-about #role-fe:checked ~ .tab-labels label[for="role-fe"],
.page-about #role-cs:checked ~ .tab-labels label[for="role-cs"],
.page-about #role-ops:checked ~ .tab-labels label[for="role-ops"],
.page-about #role-biz:checked ~ .tab-labels label[for="role-biz"] {
  color: var(--paper);
  background: var(--terra);
  border-color: var(--terra);
}
.page-about .tab-panel {
  display: none;
  padding: var(--s-5);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-top: 3px solid var(--terra);
}
.page-about #role-editor:checked ~ .tab-panels #panel-editor,
.page-about #role-proof:checked ~ .tab-panels #panel-proof,
.page-about #role-fe:checked ~ .tab-panels #panel-fe,
.page-about #role-cs:checked ~ .tab-panels #panel-cs,
.page-about #role-ops:checked ~ .tab-panels #panel-ops,
.page-about #role-biz:checked ~ .tab-panels #panel-biz {
  display: block;
}
.page-about .tab-panel h3 {
  margin: 0 0 var(--s-3);
  font-size: 20px;
  line-height: 1.3;
}
.page-about .tab-panel p {
  margin: 0 0 var(--s-4);
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}
.page-about .tab-panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-about .tab-panel li {
  position: relative;
  padding: var(--s-3) 0 var(--s-3) var(--s-5);
  font-size: 14px;
  line-height: 1.7;
  border-bottom: 1px solid var(--line);
}
.page-about .tab-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 10px;
  height: 1px;
  background: var(--lake);
}

.page-about .team-figure {
  margin: 0;
}
.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--graphite);
  border: 1px solid var(--line);
}
.page-about .team-figure figcaption {
  margin-top: var(--s-3);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 04 数据流程 ---------- */
.page-about .sec-flow {
  background: #EDE9E2;
}
.page-about .flow-grid {
  display: grid;
  gap: var(--s-6);
}
.page-about .flow {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-about .flow-item {
  display: flex;
  gap: var(--s-4);
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur-fast) var(--ease);
}
.page-about .flow-item:hover {
  background: rgba(196, 83, 43, 0.06);
}
.page-about .flow-num {
  flex: none;
  width: 40px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--terra);
}
.page-about .flow-text h3 {
  margin: 0 0 var(--s-2);
  font-size: 17px;
  line-height: 1.3;
}
.page-about .flow-text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}
.page-about .flow-figure {
  margin: 0;
}
.page-about .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink);
  border: 1px solid var(--line);
}
.page-about .flow-figure figcaption {
  margin-top: var(--s-3);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 05 合作生态 ---------- */
.page-about .sec-eco {
  background: var(--paper);
}
.page-about .eco-grid {
  display: grid;
  gap: var(--s-4);
}
.page-about .eco {
  padding: var(--s-5);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-left: 2px solid var(--graphite);
  transition: border-left-width var(--dur-fast) var(--ease), border-left-color var(--dur-fast) var(--ease);
}
.page-about .eco:hover {
  border-left-width: 4px;
  border-left-color: var(--terra);
}
.page-about .eco-marks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--s-4);
}
.page-about .eco-marks span {
  width: 12px;
  height: 12px;
  background: var(--terra);
  transform: rotate(45deg);
}
.page-about .eco-marks span:nth-child(even) {
  background: var(--lake);
}
.page-about .eco-count {
  margin: 0 0 var(--s-2);
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--terra);
}
.page-about .eco h3 {
  margin: 0 0 var(--s-4);
  font-size: 19px;
  line-height: 1.3;
  padding-bottom: var(--s-3);
  border-bottom: 1px solid var(--line);
}
.page-about .eco-line {
  margin: 0 0 var(--s-3);
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}
.page-about .eco-line:last-child {
  margin-bottom: 0;
}

/* ---------- 06 服务时间 ---------- */
.page-about .sec-time {
  background: var(--ink);
  color: var(--paper);
  border-bottom: none;
  position: relative;
  isolation: isolate;
}
.page-about .sec-time::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(244, 241, 236, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(244, 241, 236, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
}
.page-about .sec-head--dark .ann {
  color: var(--lime);
}
.page-about .sec-head--dark h2 {
  color: var(--paper);
}
.page-about .time-grid {
  display: grid;
  gap: var(--s-6);
}
.page-about .time-strip {
  display: grid;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}
.page-about .ts-cell {
  padding: var(--s-4);
  background: var(--graphite);
}
.page-about .ts-label {
  margin: 0 0 var(--s-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}
.page-about .ts-time {
  margin: 0 0 var(--s-2);
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--paper);
}
.page-about .ts-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 241, 236, 0.62);
}
.page-about .time-copy h3 {
  margin: 0 0 var(--s-4);
  font-size: 22px;
  line-height: 1.3;
}
.page-about .time-copy p {
  margin: 0 0 var(--s-4);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 236, 0.76);
}
.page-about .time-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-5);
}
.page-about .btn-ghost-light {
  color: var(--paper);
  border-color: rgba(244, 241, 236, 0.4);
}
.page-about .btn-ghost-light:hover {
  color: var(--lime);
  border-color: var(--lime);
}

/* ---------- 07 接下来 ---------- */
.page-about .sec-next {
  background: var(--paper);
  border-bottom: none;
}
.page-about .next-grid {
  display: grid;
  gap: var(--s-4);
}
.page-about .next-card {
  display: block;
  padding: var(--s-5);
  text-decoration: none;
  color: var(--ink);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-top: 3px solid var(--graphite);
  transition: border-top-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.page-about .next-card:hover {
  border-top-color: var(--terra);
  background: #FFFFFF;
}
.page-about .next-tag {
  margin: 0 0 var(--s-3);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lake);
}
.page-about .next-card h3 {
  margin: 0 0 var(--s-3);
  font-size: 19px;
  line-height: 1.35;
}
.page-about .next-card p {
  margin: 0 0 var(--s-4);
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}
.page-about .next-go {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--terra);
}
.page-about .next-card--main {
  background: var(--terra);
  border-color: var(--terra);
  border-top-color: var(--ink);
  color: var(--paper);
}
.page-about .next-card--main .next-tag {
  color: var(--ink);
}
.page-about .next-card--main p {
  color: rgba(15, 20, 22, 0.82);
}
.page-about .next-card--main .next-go {
  color: var(--ink);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero {
    padding: calc(var(--header-h) + 64px) 0 var(--s-9);
  }
  .page-about .hero-facts {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .hero-facts li {
    padding: var(--s-5) var(--s-4) var(--s-5) 0;
  }
  .page-about .about-sec {
    padding: var(--s-9) 0;
  }
  .page-about .who-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .who--accent {
    grid-column: 1 / -1;
  }
  .page-about .time-strip {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .next-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .next-card--main {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-about .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: var(--s-7);
    align-items: end;
  }
  .page-about .about-crumb {
    grid-column: 1 / -1;
  }
  .page-about .hero-ann {
    grid-column: 1 / -1;
  }
  .page-about .about-hero h1 {
    font-size: 68px;
  }
  .page-about .hero-lede {
    grid-column: 1;
  }
  .page-about .hero-facts {
    grid-column: 1 / -1;
    margin-top: var(--s-5);
  }

  .page-about .what-grid {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    column-gap: var(--s-7);
    align-items: start;
  }
  .page-about .what-lede {
    margin-bottom: 0;
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }
  .page-about .who-cards {
    grid-template-columns: repeat(12, 1fr);
    row-gap: var(--s-5);
  }
  .page-about .who:nth-child(1) {
    grid-column: 1 / span 8;
  }
  .page-about .who:nth-child(2) {
    grid-column: 4 / span 9;
  }
  .page-about .who--accent {
    grid-column: 1 / span 7;
  }

  .page-about .path-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--s-7);
    align-items: start;
  }
  .page-about .path-figure {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }
  .page-about .tl {
    padding-left: var(--s-6);
  }
  .page-about .tl-item:nth-child(even) {
    margin-left: 7%;
  }
  .page-about .tl-item:nth-child(3n) {
    margin-left: 3%;
  }
  .page-about .tl-body {
    padding: var(--s-5);
    gap: var(--s-5);
  }
  .page-about .tl-year {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 0.22em;
    padding-top: 2px;
  }

  .page-about .role-band {
    height: 120px;
  }
  .page-about .rb {
    padding: var(--s-3) var(--s-3) var(--s-4);
  }
  .page-about .rb-num {
    font-size: 24px;
  }
  .page-about .rb-lab {
    display: block;
    margin-top: 4px;
  }
  .page-about .team-tabs {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    column-gap: var(--s-7);
    align-items: start;
  }
  .page-about .tab-labels {
    flex-direction: column;
    flex-wrap: nowrap;
    margin-bottom: 0;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
  }
  .page-about .tab-labels label {
    border: none;
    background: var(--paper);
    padding: 14px var(--s-4);
    font-size: 14px;
  }
  .page-about .tab-labels label:hover {
    background: #FFFFFF;
  }
  .page-about #role-editor:checked ~ .tab-labels label[for="role-editor"],
  .page-about #role-proof:checked ~ .tab-labels label[for="role-proof"],
  .page-about #role-fe:checked ~ .tab-labels label[for="role-fe"],
  .page-about #role-cs:checked ~ .tab-labels label[for="role-cs"],
  .page-about #role-ops:checked ~ .tab-labels label[for="role-ops"],
  .page-about #role-biz:checked ~ .tab-labels label[for="role-biz"] {
    background: var(--terra);
    color: var(--paper);
  }
  .page-about .tab-panels {
    min-height: 260px;
  }

  .page-about .flow-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: var(--s-7);
    align-items: start;
  }
  .page-about .flow-figure {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-about .eco-grid {
    grid-template-columns: repeat(12, 1fr);
    row-gap: var(--s-5);
  }
  .page-about .eco:nth-child(1) {
    grid-column: 1 / span 5;
  }
  .page-about .eco:nth-child(2) {
    grid-column: 7 / span 6;
  }
  .page-about .eco:nth-child(3) {
    grid-column: 2 / span 5;
  }

  .page-about .time-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    column-gap: var(--s-7);
    align-items: center;
  }

  .page-about .next-grid {
    grid-template-columns: repeat(12, 1fr);
  }
  .page-about .next-card--main {
    grid-column: 1 / span 6;
  }
  .page-about .next-card:nth-child(2) {
    grid-column: 7 / span 3;
  }
  .page-about .next-card:nth-child(3) {
    grid-column: 10 / span 3;
  }
  .page-about .next-card:nth-child(4) {
    grid-column: 1 / span 12;
  }
}

@media (min-width: 1240px) {
  .page-about .about-hero h1 {
    font-size: 76px;
  }
}