.page-about {
  --about-rail: 200px;
  position: relative;
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 96px);
  color: var(--cream);
  padding-bottom: clamp(40px, 7vw, 88px);
  overflow-x: clip;
}

/* ---------- 首屏封面 ---------- */
.page-about .about-hero {
  padding-top: clamp(22px, 4vw, 44px);
  padding-bottom: clamp(20px, 3.5vw, 36px);
  border-bottom: 1px solid var(--line-strong);
}

.page-about .about-kicker {
  color: var(--cyan);
  margin-top: clamp(14px, 2.4vw, 22px);
}

.page-about .about-title {
  margin: 14px 0 0;
  font-size: clamp(28px, 5.6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 20ch;
}

.page-about .about-lead {
  margin: clamp(14px, 2vw, 22px) 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--cream-soft);
}

.page-about .about-facts {
  list-style: none;
  margin: clamp(22px, 3.5vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-strong);
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(12px, 2vw, 18px);
  background: var(--field);
  border-top: 2px solid var(--cyan);
}

.page-about .about-fact-num {
  font-family: var(--f-num);
  font-size: clamp(26px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-about .about-fact-num em {
  font-style: normal;
  font-size: 0.4em;
  margin-left: 4px;
  color: var(--sage);
  letter-spacing: 0;
}

.page-about .about-fact-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.5;
  color: var(--sage);
}

.page-about .about-fact:last-child .about-fact-num {
  font-size: clamp(19px, 3vw, 26px);
  color: var(--orange);
}

/* ---------- 主体两栏 ---------- */
.page-about .about-shell {
  padding-top: clamp(24px, 4vw, 44px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
  align-items: start;
}

.page-about .about-body {
  min-width: 0;
}

/* ---------- 侧边索引 ---------- */
.page-about .about-index {
  position: sticky;
  top: 0;
  z-index: 3;
  padding: 10px 12px;
  background: var(--ink-deep);
  border: 1px solid var(--line-strong);
}

.page-about .about-index-title {
  display: none;
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--sage);
}

.page-about .about-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-index-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 9px;
  border: 1px solid transparent;
  color: var(--cream-soft);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-index-list a .num {
  font-family: var(--f-num);
  font-size: 11px;
  color: var(--cyan);
}

.page-about .about-index-list a:hover,
.page-about .about-index-list a:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-about .about-index-list a:hover .num,
.page-about .about-index-list a:focus-visible .num {
  color: var(--ink);
}

/* ---------- 章节通用 ---------- */
.page-about .about-sec {
  padding-block: clamp(24px, 4vw, 42px);
  border-top: 1px solid var(--line);
}

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

.page-about .about-sec-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(10px, 2vw, 18px);
  align-items: start;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-about .index-num {
  font-family: var(--f-num);
  font-size: clamp(32px, 5.4vw, 52px);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--cyan);
  opacity: 0.5;
}

.page-about .about-sec-head .kicker {
  color: var(--cyan);
}

.page-about .about-sec h2 {
  margin: 6px 0 0;
  font-size: clamp(21px, 3.2vw, 31px);
  line-height: 1.26;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-about .about-two {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 28px);
  align-items: start;
}

.page-about .about-prose p {
  margin: 0 0 14px;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.88;
  color: var(--cream-soft);
}

.page-about .about-prose p:last-child {
  margin-bottom: 0;
}

.page-about .about-prose strong {
  color: var(--cream);
  font-weight: 700;
}

.page-about .about-figure {
  margin: 0;
  border: 3px solid var(--brown);
  background: var(--field);
  box-shadow: var(--shadow-hard);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 1px solid var(--line-strong);
}

.page-about .about-figure figcaption {
  padding: 8px 10px;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--sage);
  background: var(--ink-deep);
}

/* ---------- 流程展签 ---------- */
.page-about .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(10px, 1.6vw, 16px);
}

.page-about .flow-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: clamp(12px, 2vw, 18px);
  background: var(--field);
  border: 2px solid var(--brown);
  box-shadow: var(--shadow-hard);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .flow-step:hover {
  background: var(--cream);
  border-color: var(--cyan);
  transform: translate(-2px, -2px);
}

.page-about .flow-step h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--cream);
}

.page-about .flow-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--cream-soft);
}

.page-about .flow-step:hover h3 {
  color: var(--brown);
}

.page-about .flow-step:hover p {
  color: rgba(26, 20, 16, 0.78);
}

.page-about .flow-tag {
  align-self: start;
  padding: 6px 7px;
  font-family: var(--f-num);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  border: 1px solid var(--cyan);
}

.page-about .flow-step:hover .flow-tag {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cyan);
}

/* ---------- 数据表 ---------- */
.page-about .about-table-wrap {
  margin-top: clamp(14px, 2.4vw, 22px);
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  background: var(--ink-deep);
}

.page-about .about-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-about .about-table caption {
  caption-side: top;
  text-align: left;
  padding: 10px 12px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--sage);
  border-bottom: 1px solid var(--line);
}

.page-about .about-table th,
.page-about .about-table td {
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-about .about-table thead th {
  background: var(--field);
  color: var(--cyan);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-about .about-table tbody th {
  color: var(--cream);
  font-weight: 700;
}

.page-about .about-table tbody td {
  color: var(--cream-soft);
}

.page-about .about-table tbody tr:nth-child(even) {
  background: rgba(216, 205, 184, 0.05);
}

.page-about .about-table tbody tr:last-child th,
.page-about .about-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 多端卡片 ---------- */
.page-about .multi-grid {
  margin-top: clamp(14px, 2.4vw, 22px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .multi-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  background: var(--field);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--cyan);
  color: var(--cream);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .multi-card:hover,
.page-about .multi-card:focus-visible {
  background: var(--ink-deep);
  border-color: var(--cyan);
}

.page-about .multi-card h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
}

.page-about .multi-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cream-soft);
}

.page-about .multi-go {
  margin-top: auto;
  padding-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

/* ---------- 版本刻度 ---------- */
.page-about .version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .version {
  border: 1px solid var(--line-strong);
  background: var(--ink-deep);
  transition: border-color var(--dur) var(--ease);
}

.page-about .version[open] {
  border-color: var(--cyan);
}

.page-about .version summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 13px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--cream);
  cursor: pointer;
  list-style: none;
}

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

.page-about .version summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--f-num);
  font-size: 16px;
  color: var(--cyan);
}

.page-about .version[open] summary::after {
  content: "–";
}

.page-about .version summary:hover {
  background: var(--field);
}

.page-about .version-tag {
  padding: 2px 6px;
  font-family: var(--f-num);
  font-size: 11px;
  letter-spacing: 0.06em;
  background: var(--cyan);
  color: var(--ink);
}

.page-about .version--now .version-tag {
  background: var(--orange);
  color: var(--brown);
}

.page-about .version-body {
  padding: 0 13px 13px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--cream-soft);
}

.page-about .version-body p {
  margin: 0 0 8px;
}

.page-about .version-body p:last-child {
  margin-bottom: 0;
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  margin-top: clamp(14px, 2.4vw, 22px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .team-card {
  padding: 14px;
  background: var(--field);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
}

.page-about .team-card:nth-child(2) {
  border-top-color: var(--orange);
}

.page-about .team-card:nth-child(3) {
  border-top-color: var(--yellow);
}

.page-about .team-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 800;
}

.page-about .team-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--cream-soft);
}

.page-about .rhythm {
  margin-top: clamp(14px, 2.2vw, 20px);
  padding: 14px;
  background: var(--cream);
  color: var(--brown);
  border: 2px solid var(--brown);
  box-shadow: var(--shadow-hard);
}

.page-about .rhythm p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
}

/* ---------- 下一步 ---------- */
.page-about .next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .next-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  background: var(--field);
  border: 2px solid var(--brown);
  box-shadow: var(--shadow-hard);
  color: var(--cream);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .next-card:hover,
.page-about .next-card:focus-visible {
  background: var(--cream);
  border-color: var(--cyan);
  color: var(--brown);
}

.page-about .next-card strong {
  font-size: 15px;
  font-weight: 800;
}

.page-about .next-card span {
  font-size: 13px;
  line-height: 1.65;
  color: var(--sage);
}

.page-about .next-card:hover span,
.page-about .next-card:focus-visible span {
  color: rgba(26, 20, 16, 0.72);
}

.page-about .about-contact {
  margin-top: clamp(16px, 2.6vw, 24px);
  padding: clamp(14px, 2.4vw, 20px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  background: var(--ink-deep);
  border: 1px solid var(--line-strong);
}

.page-about .about-contact dl {
  margin: 0;
  display: grid;
  gap: 10px;
}

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

.page-about .about-contact dd {
  margin: 3px 0 0;
  font-size: 14px;
  color: var(--cream);
  word-break: break-word;
}

.page-about .about-contact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-about .about-contact a:hover,
.page-about .about-contact a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-about .about-contact p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--cream-soft);
}

.page-about .about-top {
  display: inline-flex;
  margin-top: clamp(18px, 3vw, 28px);
  padding: 9px 14px;
  border: 2px solid var(--cyan);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .about-top:hover,
.page-about .about-top:focus-visible {
  background: var(--cyan);
  color: var(--ink);
}

/* ---------- 面包屑 ---------- */
.page-about .crumbs a {
  color: var(--cyan);
  text-decoration: none;
}

.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--orange);
}

.page-about .crumbs [aria-current="page"] {
  color: var(--sage);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-about .multi-grid,
  .page-about .next-grid,
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .version-list {
    position: relative;
    padding-left: 26px;
    border-left: 2px solid var(--line-strong);
  }

  .page-about .version-list > li {
    position: relative;
  }

  .page-about .version-list > li::before {
    content: "";
    position: absolute;
    left: -32px;
    top: 16px;
    width: 10px;
    height: 10px;
    background: var(--cyan);
    box-shadow: 0 0 0 3px var(--ink);
  }

  .page-about .version-list > li:last-child::before {
    background: var(--orange);
  }
}

@media (min-width: 820px) {
  .page-about .about-two {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(20px, 3vw, 34px);
  }

  .page-about .about-two--flip > .about-prose {
    order: 2;
  }

  .page-about .about-two--flip > .about-figure {
    order: 1;
  }

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

@media (min-width: 900px) {
  .page-about .about-shell {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-index {
    top: 16px;
    padding: 16px 14px;
  }

  .page-about .about-index-title {
    display: block;
  }

  .page-about .about-index-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .page-about .about-index-list a {
    width: 100%;
  }
}

@media (min-width: 760px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index-list a,
  .page-about .flow-step,
  .page-about .flow-tag,
  .page-about .multi-card,
  .page-about .next-card,
  .page-about .version,
  .page-about .about-top {
    transition: none;
  }

  .page-about .flow-step:hover {
    transform: none;
  }
}

.page-about {
  --about-rail: 200px;
  position: relative;
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 96px);
  color: var(--cream);
  padding-bottom: clamp(40px, 7vw, 88px);
  overflow-x: clip;
}

.page-about .about-hero {
  padding-top: clamp(22px, 4vw, 44px);
  padding-bottom: clamp(20px, 3.5vw, 36px);
  border-bottom: 1px solid var(--line-strong);
}

.page-about .about-kicker {
  color: var(--cyan);
  margin-top: clamp(14px, 2.4vw, 22px);
}

.page-about .about-title {
  margin: 14px 0 0;
  font-size: clamp(28px, 5.6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 20ch;
}

.page-about .about-lead {
  margin: clamp(14px, 2vw, 22px) 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--cream-soft);
}

.page-about .about-facts {
  list-style: none;
  margin: clamp(22px, 3.5vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-strong);
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(12px, 2vw, 18px);
  background: var(--field);
  border-top: 2px solid var(--cyan);
}

.page-about .about-fact-num {
  font-family: var(--f-num);
  font-size: clamp(26px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-about .about-fact-num em {
  font-style: normal;
  font-size: 0.4em;
  margin-left: 4px;
  color: var(--sage);
  letter-spacing: 0;
}

.page-about .about-fact-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.5;
  color: var(--sage);
}

.page-about .about-fact:last-child .about-fact-num {
  font-size: clamp(19px, 3vw, 26px);
  color: var(--orange);
}

.page-about .about-shell {
  padding-top: clamp(24px, 4vw, 44px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
  align-items: start;
}

.page-about .about-body {
  min-width: 0;
}

.page-about .about-index {
  position: sticky;
  top: 0;
  z-index: 3;
  padding: 10px 12px;
  background: var(--ink-deep);
  border: 1px solid var(--line-strong);
}

.page-about .about-index-title {
  display: none;
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--sage);
}

.page-about .about-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-index-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 9px;
  border: 1px solid transparent;
  color: var(--cream-soft);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-index-list a .num {
  font-family: var(--f-num);
  font-size: 11px;
  color: var(--cyan);
}

.page-about .about-index-list a:hover,
.page-about .about-index-list a:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-about .about-index-list a:hover .num,
.page-about .about-index-list a:focus-visible .num {
  color: var(--ink);
}

.page-about .about-sec {
  padding-block: clamp(24px, 4vw, 42px);
  border-top: 1px solid var(--line);
}

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

.page-about .about-sec-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(10px, 2vw, 18px);
  align-items: start;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-about .index-num {
  font-family: var(--f-num);
  font-size: clamp(32px, 5.4vw, 52px);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--cyan);
  opacity: 0.5;
}

.page-about .about-sec-head .kicker {
  color: var(--cyan);
}

.page-about .about-sec h2 {
  margin: 6px 0 0;
  font-size: clamp(21px, 3.2vw, 31px);
  line-height: 1.26;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-about .about-two {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 28px);
  align-items: start;
}

.page-about .about-prose p {
  margin: 0 0 14px;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.88;
  color: var(--cream-soft);
}

.page-about .about-prose p:last-child {
  margin-bottom: 0;
}

.page-about .about-prose strong {
  color: var(--cream);
  font-weight: 700;
}

.page-about .about-figure {
  margin: 0;
  border: 3px solid var(--brown);
  background: var(--field);
  box-shadow: var(--shadow-hard);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 1px solid var(--line-strong);
}

.page-about .about-figure figcaption {
  padding: 8px 10px;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--sage);
  background: var(--ink-deep);
}

.page-about .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(10px, 1.6vw, 16px);
}

.page-about .flow-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: clamp(12px, 2vw, 18px);
  background: var(--field);
  border: 2px solid var(--brown);
  box-shadow: var(--shadow-hard);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .flow-step:hover {
  background: var(--cream);
  border-color: var(--cyan);
  transform: translate(-2px, -2px);
}

.page-about .flow-step h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--cream);
}

.page-about .flow-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--cream-soft);
}

.page-about .flow-step:hover h3 {
  color: var(--brown);
}

.page-about .flow-step:hover p {
  color: rgba(26, 20, 16, 0.78);
}

.page-about .flow-tag {
  align-self: start;
  padding: 6px 7px;
  font-family: var(--f-num);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  border: 1px solid var(--cyan);
}

.page-about .flow-step:hover .flow-tag {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cyan);
}

.page-about .about-table-wrap {
  margin-top: clamp(14px, 2.4vw, 22px);
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  background: var(--ink-deep);
}

.page-about .about-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-about .about-table caption {
  caption-side: top;
  text-align: left;
  padding: 10px 12px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--sage);
  border-bottom: 1px solid var(--line);
}

.page-about .about-table th,
.page-about .about-table td {
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-about .about-table thead th {
  background: var(--field);
  color: var(--cyan);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-about .about-table tbody th {
  color: var(--cream);
  font-weight: 700;
}

.page-about .about-table tbody td {
  color: var(--cream-soft);
}

.page-about .about-table tbody tr:nth-child(even) {
  background: rgba(216, 205, 184, 0.05);
}

.page-about .about-table tbody tr:last-child th,
.page-about .about-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-about .multi-grid {
  margin-top: clamp(14px, 2.4vw, 22px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .multi-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  background: var(--field);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--cyan);
  color: var(--cream);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .multi-card:hover,
.page-about .multi-card:focus-visible {
  background: var(--ink-deep);
  border-color: var(--cyan);
}

.page-about .multi-card h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
}

.page-about .multi-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cream-soft);
}

.page-about .multi-go {
  margin-top: auto;
  padding-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-about .version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .version {
  border: 1px solid var(--line-strong);
  background: var(--ink-deep);
  transition: border-color var(--dur) var(--ease);
}

.page-about .version[open] {
  border-color: var(--cyan);
}

.page-about .version summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 13px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--cream);
  cursor: pointer;
  list-style: none;
}

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

.page-about .version summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--f-num);
  font-size: 16px;
  color: var(--cyan);
}

.page-about .version[open] summary::after {
  content: "–";
}

.page-about .version summary:hover {
  background: var(--field);
}

.page-about .version-tag {
  padding: 2px 6px;
  font-family: var(--f-num);
  font-size: 11px;
  letter-spacing: 0.06em;
  background: var(--cyan);
  color: var(--ink);
}

.page-about .version--now .version-tag {
  background: var(--orange);
  color: var(--brown);
}

.page-about .version-body {
  padding: 0 13px 13px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--cream-soft);
}

.page-about .version-body p {
  margin: 0 0 8px;
}

.page-about .version-body p:last-child {
  margin-bottom: 0;
}

.page-about .team-grid {
  margin-top: clamp(14px, 2.4vw, 22px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .team-card {
  padding: 14px;
  background: var(--field);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
}

.page-about .team-card:nth-child(2) {
  border-top-color: var(--orange);
}

.page-about .team-card:nth-child(3) {
  border-top-color: var(--yellow);
}

.page-about .team-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 800;
}

.page-about .team-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--cream-soft);
}

.page-about .rhythm {
  margin-top: clamp(14px, 2.2vw, 20px);
  padding: 14px;
  background: var(--cream);
  color: var(--brown);
  border: 2px solid var(--brown);
  box-shadow: var(--shadow-hard);
}

.page-about .rhythm p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
}

.page-about .next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .next-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  background: var(--field);
  border: 2px solid var(--brown);
  box-shadow: var(--shadow-hard);
  color: var(--cream);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .next-card:hover,
.page-about .next-card:focus-visible {
  background: var(--cream);
  border-color: var(--cyan);
  color: var(--brown);
}

.page-about .next-card strong {
  font-size: 15px;
  font-weight: 800;
}

.page-about .next-card span {
  font-size: 13px;
  line-height: 1.65;
  color: var(--sage);
}

.page-about .next-card:hover span,
.page-about .next-card:focus-visible span {
  color: rgba(26, 20, 16, 0.72);
}

.page-about .about-contact {
  margin-top: clamp(16px, 2.6vw, 24px);
  padding: clamp(14px, 2.4vw, 20px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  background: var(--ink-deep);
  border: 1px solid var(--line-strong);
}

.page-about .about-contact dl {
  margin: 0;
  display: grid;
  gap: 10px;
}

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

.page-about .about-contact dd {
  margin: 3px 0 0;
  font-size: 14px;
  color: var(--cream);
  word-break: break-word;
}

.page-about .about-contact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-about .about-contact a:hover,
.page-about .about-contact a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-about .about-contact p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--cream-soft);
}

.page-about .about-top {
  display: inline-flex;
  margin-top: clamp(18px, 3vw, 28px);
  padding: 9px 14px;
  border: 2px solid var(--cyan);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .about-top:hover,
.page-about .about-top:focus-visible {
  background: var(--cyan);
  color: var(--ink);
}

.page-about .crumbs a {
  color: var(--cyan);
  text-decoration: none;
}

.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--orange);
}

.page-about .crumbs [aria-current="page"] {
  color: var(--sage);
}

@media (min-width: 700px) {
  .page-about .multi-grid,
  .page-about .next-grid,
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .version-list {
    position: relative;
    padding-left: 26px;
    border-left: 2px solid var(--line-strong);
  }

  .page-about .version-list > li {
    position: relative;
  }

  .page-about .version-list > li::before {
    content: "";
    position: absolute;
    left: -32px;
    top: 16px;
    width: 10px;
    height: 10px;
    background: var(--cyan);
    box-shadow: 0 0 0 3px var(--ink);
  }

  .page-about .version-list > li:last-child::before {
    background: var(--orange);
  }
}

@media (min-width: 760px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-about .about-two {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(20px, 3vw, 34px);
  }

  .page-about .about-two--flip > .about-prose {
    order: 2;
  }

  .page-about .about-two--flip > .about-figure {
    order: 1;
  }

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

@media (min-width: 900px) {
  .page-about .about-shell {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-index {
    top: 16px;
    padding: 16px 14px;
  }

  .page-about .about-index-title {
    display: block;
  }

  .page-about .about-index-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .page-about .about-index-list a {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index-list a,
  .page-about .flow-step,
  .page-about .flow-tag,
  .page-about .multi-card,
  .page-about .next-card,
  .page-about .version,
  .page-about .about-top {
    transition: none;
  }

  .page-about .flow-step:hover {
    transform: none;
  }
}