.page-about {
  --about-pad: clamp(40px, 6vw, 76px);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  padding: clamp(20px, 3vw, 34px) 0 0;
}

.page-about .breadcrumb {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-about .about-lead {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
  padding: clamp(14px, 2vw, 22px) 0 clamp(26px, 3.6vw, 44px);
}

.page-about .about-lead__h {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(32px, 6vw, 70px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-about .about-lead__h em {
  font-style: normal;
  color: var(--lime);
}

.page-about .about-lead__body p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ash);
  max-width: 44em;
}

.page-about .about-lead__body p:last-child {
  margin-bottom: 0;
  color: var(--paper);
}

@media (min-width: 940px) {
  .page-about .about-lead {
    grid-template-columns: 6fr 6fr;
    align-items: end;
  }
}

/* ---------- Stat strip ---------- */
.page-about .stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 2px solid var(--line);
  border-left: 1px solid var(--line);
  margin-bottom: calc(var(--about-pad) * -0.4);
}

.page-about .stat {
  padding: 14px 12px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

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

.page-about .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 28px);
  letter-spacing: 0.02em;
  color: var(--lime);
  line-height: 1.2;
}

.page-about .stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--ash);
}

@media (min-width: 760px) {
  .page-about .stat-strip {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-about .stat:last-child {
    grid-column: auto;
  }
}

/* ---------- Section shell ---------- */
.page-about .sec {
  padding: var(--about-pad) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .sec__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(22px, 3.2vw, 36px);
}

.page-about .sec__h {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.006em;
  color: var(--paper);
  max-width: 22em;
}

/* ---------- Who ---------- */
.page-about .who-grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-about .who-main p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ash);
  max-width: 40em;
}

.page-about .who-main p:first-child {
  font-size: 17px;
  color: var(--paper);
}

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

.page-about .who-side {
  border-left: 3px solid var(--lime);
  padding: 2px 0 2px 16px;
}

.page-about .who-side__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-about .who-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .who-side__list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--paper);
}

.page-about .who-side__list li:last-child {
  border-bottom: 0;
}

.page-about .who-side__list .when {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

@media (min-width: 900px) {
  .page-about .who-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

/* ---------- Flow ---------- */
.page-about .flow-grid {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-about .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .flow-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-about .flow-step__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
  padding-top: 5px;
}

.page-about .flow-step__body h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 500;
  color: var(--paper);
}

.page-about .flow-step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ash);
  max-width: 40em;
}

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

@media (min-width: 900px) {
  .page-about .flow-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

/* ---------- Device rows ---------- */
.page-about .device-rows {
  border-top: 2px solid var(--line);
}

.page-about .device-row {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .device-row__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lime);
}

.page-about .device-row__v h3 {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 500;
  color: var(--paper);
}

.page-about .device-row__v p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ash);
  max-width: 42em;
}

.page-about .device-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--blue);
  background: var(--panel-2);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper);
  max-width: 52em;
}

@media (min-width: 780px) {
  .page-about .device-row {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }
  .page-about .device-row__k {
    padding-top: 4px;
  }
}

/* ---------- Timeline ---------- */
.page-about .tl {
  list-style: none;
  margin: 0 0 clamp(26px, 3.6vw, 42px);
  padding: 0;
}

.page-about .tl-node {
  position: relative;
  padding: 0 0 30px 26px;
  border-left: 1px solid var(--line);
}

.page-about .tl-node:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-about .tl-node::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 0 3px rgba(94, 122, 78, 0.18);
  transition: background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-about .tl-node--now::before {
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(198, 255, 61, 0.2);
}

.page-about .tl-node:hover::before,
.page-about .tl-node:focus-within::before {
  background: var(--lime);
  box-shadow: 0 0 0 5px rgba(198, 255, 61, 0.22);
}

.page-about .tl-node__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ash);
  margin-bottom: 6px;
}

.page-about .tl-node--now .tl-node__year {
  color: var(--orange);
}

.page-about .tl-node__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .tl-node__body p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ash);
  max-width: 44em;
}

.page-about .tl-node__more {
  font-size: 13.5px !important;
  color: var(--moss) !important;
  border-left: 2px solid var(--line);
  padding-left: 10px;
}

.page-about .tl-node--now .tl-node__more {
  color: var(--ash) !important;
}

@media (min-width: 820px) {
  .page-about .tl-node {
    padding: 0 0 34px 30px;
  }
}

/* ---------- Version table ---------- */
.page-about .ver-wrap {
  overflow-x: auto;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}

.page-about .ver-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-about .ver-table caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ash);
}

.page-about .ver-table th,
.page-about .ver-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ash);
  line-height: 1.6;
}

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

.page-about .ver-table thead th {
  color: var(--paper);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.page-about .ver-table tbody th {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--lime);
  white-space: nowrap;
}

.page-about .ver-table tbody tr {
  transition: background 0.16s var(--ease);
}

.page-about .ver-table tbody tr:hover {
  background: var(--panel-2);
}

.page-about .ver-table tbody tr:hover td {
  color: var(--paper);
}

/* ---------- Team ---------- */
.page-about .sec--team {
  border-bottom: 0;
}

.page-about .team-media {
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  margin-bottom: clamp(22px, 3.4vw, 38px);
  background: var(--panel-2);
}

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

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

.page-about .team-card {
  background: var(--panel);
  border: 2px solid var(--line);
  padding: 18px 16px 20px;
  min-width: 0;
}

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

.page-about .team-card__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--ash);
  margin-bottom: 8px;
}

.page-about .team-card h3 {
  margin: 0 0 2px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .team-card__size {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--lime);
}

.page-about .team-card p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ash);
  margin: 0 0 12px;
}

.page-about .team-card__size + p {
  color: var(--ash);
}

.page-about .team-card details {
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
  margin-top: auto;
}

.page-about .team-card summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--blue);
  list-style: none;
  transition: color 0.16s var(--ease);
}

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

.page-about .team-card summary::before {
  content: "+ ";
}

.page-about .team-card details[open] summary::before {
  content: "− ";
}

.page-about .team-card summary:hover,
.page-about .team-card summary:focus-visible {
  color: var(--lime);
}

.page-about .team-card details ul {
  margin: 10px 0 0;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ash);
}

.page-about .team-card details li {
  margin-bottom: 4px;
}

@media (min-width: 880px) {
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 16px;
  }
  .page-about .team-card:nth-child(2) {
    margin-top: 28px;
  }
  .page-about .team-card:nth-child(3) {
    margin-top: 56px;
  }
}

.page-about .rhythm {
  display: grid;
  gap: 8px;
  margin-top: clamp(24px, 3.4vw, 38px);
  padding: 18px 18px 20px;
  background: var(--panel-2);
  border: 1px solid var(--line);
}

.page-about .rhythm__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .rhythm__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
  max-width: 56em;
}

@media (min-width: 820px) {
  .page-about .rhythm {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }
  .page-about .rhythm__k {
    padding-top: 4px;
  }
}

/* ---------- Band (used once) ---------- */
.page-about .about-band {
  background: var(--bone);
  color: var(--ink);
  padding: var(--about-pad) 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.page-about .about-band .eyebrow {
  color: var(--moss);
}

.page-about .about-band__h {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.14;
  color: var(--ink);
  max-width: 20em;
}

.page-about .about-band__p {
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: 15.5px;
  line-height: 1.85;
  color: #26352D;
  max-width: 46em;
}

.page-about .band-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(8, 18, 15, 0.24);
}

.page-about .band-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(8, 18, 15, 0.18);
}

.page-about .band-list li:last-child {
  border-bottom: 0;
}

.page-about .band-list__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--moss);
  padding-top: 4px;
}

.page-about .band-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: #1B2A22;
  max-width: 48em;
}

@media (min-width: 900px) {
  .page-about .band-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 36px;
    border-bottom: 1px solid rgba(8, 18, 15, 0.18);
  }
  .page-about .band-list li {
    border-bottom: 0;
  }
}

/* ---------- Next ---------- */
.page-about .about-next {
  position: relative;
  overflow: hidden;
  background: var(--ink-deep);
  border-top: 2px solid var(--line);
}

.page-about .about-next__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  filter: saturate(0.55);
  max-width: 100%;
}

.page-about .about-next__inner {
  position: relative;
  z-index: 1;
  padding: var(--about-pad) 0 calc(var(--about-pad) * 0.9);
}

.page-about .about-next__h {
  margin: 12px 0 clamp(20px, 3vw, 30px);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.14;
  color: var(--paper);
}

.page-about .next-links {
  display: grid;
  gap: 12px;
}

.page-about .next-link {
  display: block;
  padding: 16px 15px 18px;
  background: rgba(17, 28, 24, 0.88);
  border: 2px solid var(--line);
  text-decoration: none;
  color: var(--paper);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease), background 0.18s var(--ease);
}

.page-about .next-link:hover,
.page-about .next-link:focus-visible {
  border-color: var(--lime);
  background: rgba(12, 23, 19, 0.94);
  transform: translateY(-2px);
}

.page-about .next-link__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--lime);
  margin-bottom: 6px;
}

.page-about .next-link__t {
  display: block;
  font-size: 18px;
  font-weight: 500;
  color: var(--paper);
  margin-bottom: 5px;
}

.page-about .next-link__d {
  display: block;
  font-size: 14px;
  line-height: 1.68;
  color: var(--ash);
}

.page-about .next-contact {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ash);
  max-width: 52em;
}

.page-about .next-contact a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.16s var(--ease);
}

.page-about .next-contact a:hover,
.page-about .next-contact a:focus-visible {
  color: var(--lime);
}

@media (min-width: 800px) {
  .page-about .next-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .next-link,
  .page-about .tl-node::before,
  .page-about .ver-table tbody tr {
    transition: none;
  }
  .page-about .next-link:hover,
  .page-about .next-link:focus-visible {
    transform: none;
  }
}
</MC>

.page-about {
  --about-pad: clamp(40px, 6vw, 76px);
}

/* ========== 首屏 ========== */
.page-about .about-hero {
  padding: clamp(20px, 3vw, 34px) 0 0;
}

.page-about .breadcrumb {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-about .about-lead {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
  padding: clamp(14px, 2vw, 22px) 0 clamp(26px, 3.6vw, 44px);
}

.page-about .about-lead__h {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(32px, 6vw, 70px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-about .about-lead__h em {
  font-style: normal;
  color: var(--lime);
}

.page-about .about-lead__body p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ash);
  max-width: 44em;
}

.page-about .about-lead__body p:last-child {
  margin-bottom: 0;
  color: var(--paper);
}

@media (min-width: 940px) {
  .page-about .about-lead {
    grid-template-columns: 6fr 6fr;
    align-items: end;
  }
}

/* ========== 数据条 ========== */
.page-about .stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 2px solid var(--line);
  border-left: 1px solid var(--line);
  margin-bottom: calc(var(--about-pad) * -0.4);
}

.page-about .stat {
  padding: 14px 12px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

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

.page-about .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 28px);
  letter-spacing: 0.02em;
  color: var(--lime);
  line-height: 1.2;
}

.page-about .stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--ash);
}

@media (min-width: 760px) {
  .page-about .stat-strip {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-about .stat:last-child {
    grid-column: auto;
  }
}

/* ========== 区块骨架 ========== */
.page-about .sec {
  padding: var(--about-pad) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .sec__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(22px, 3.2vw, 36px);
}

.page-about .sec__h {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.006em;
  color: var(--paper);
  max-width: 22em;
}

/* ========== 站点定位 ========== */
.page-about .who-grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-about .who-main p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ash);
  max-width: 40em;
}

.page-about .who-main p:first-child {
  font-size: 17px;
  color: var(--paper);
}

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

.page-about .who-side {
  border-left: 3px solid var(--lime);
  padding: 2px 0 2px 16px;
}

.page-about .who-side__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-about .who-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .who-side__list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--paper);
}

.page-about .who-side__list li:last-child {
  border-bottom: 0;
}

.page-about .who-side__list .when {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

@media (min-width: 900px) {
  .page-about .who-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

/* ========== 流程 ========== */
.page-about .flow-grid {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-about .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .flow-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-about .flow-step__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
  padding-top: 5px;
}

.page-about .flow-step__body h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 500;
  color: var(--paper);
}

.page-about .flow-step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ash);
  max-width: 40em;
}

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

@media (min-width: 900px) {
  .page-about .flow-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

/* ========== 三端 ========== */
.page-about .device-rows {
  border-top: 2px solid var(--line);
}

.page-about .device-row {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .device-row__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lime);
}

.page-about .device-row__v h3 {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 500;
  color: var(--paper);
}

.page-about .device-row__v p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ash);
  max-width: 42em;
}

.page-about .device-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--blue);
  background: var(--panel-2);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper);
  max-width: 52em;
}

@media (min-width: 780px) {
  .page-about .device-row {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }
  .page-about .device-row__k {
    padding-top: 4px;
  }
}

/* ========== 时间线 ========== */
.page-about .tl {
  list-style: none;
  margin: 0 0 clamp(26px, 3.6vw, 42px);
  padding: 0;
}

.page-about .tl-node {
  position: relative;
  padding: 0 0 30px 26px;
  border-left: 1px solid var(--line);
}

.page-about .tl-node:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-about .tl-node::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 0 3px rgba(94, 122, 78, 0.18);
  transition: background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-about .tl-node--now::before {
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(198, 255, 61, 0.2);
}

.page-about .tl-node:hover::before,
.page-about .tl-node:focus-within::before {
  background: var(--lime);
  box-shadow: 0 0 0 5px rgba(198, 255, 61, 0.22);
}

.page-about .tl-node__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ash);
  margin-bottom: 6px;
}

.page-about .tl-node--now .tl-node__year {
  color: var(--orange);
}

.page-about .tl-node__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .tl-node__body p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ash);
  max-width: 44em;
}

.page-about .tl-node__more {
  font-size: 13.5px !important;
  color: var(--moss) !important;
  border-left: 2px solid var(--line);
  padding-left: 10px;
}

.page-about .tl-node--now .tl-node__more {
  color: var(--ash) !important;
}

@media (min-width: 820px) {
  .page-about .tl-node {
    padding: 0 0 34px 30px;
  }
}

/* ========== 版本表 ========== */
.page-about .ver-wrap {
  overflow-x: auto;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}

.page-about .ver-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-about .ver-table caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ash);
}

.page-about .ver-table th,
.page-about .ver-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ash);
  line-height: 1.6;
}

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

.page-about .ver-table thead th {
  color: var(--paper);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.page-about .ver-table tbody th {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--lime);
  white-space: nowrap;
}

.page-about .ver-table tbody tr {
  transition: background 0.16s var(--ease);
}

.page-about .ver-table tbody tr:hover {
  background: var(--panel-2);
}

.page-about .ver-table tbody tr:hover td {
  color: var(--paper);
}

/* ========== 团队 ========== */
.page-about .sec--team {
  border-bottom: 0;
}

.page-about .team-media {
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  margin-bottom: clamp(22px, 3.4vw, 38px);
  background: var(--panel-2);
}

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

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

.page-about .team-card {
  background: var(--panel);
  border: 2px solid var(--line);
  padding: 18px 16px 20px;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

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

.page-about .team-card__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--ash);
  margin-bottom: 8px;
}

.page-about .team-card h3 {
  margin: 0 0 2px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .team-card__size {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--lime);
}

.page-about .team-card p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ash);
  margin: 0 0 12px;
}

.page-about .team-card__size + p {
  color: var(--ash);
}

.page-about .team-card details {
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
  margin-top: auto;
}

.page-about .team-card summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--blue);
  list-style: none;
  transition: color 0.16s var(--ease);
}

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

.page-about .team-card summary::before {
  content: "+ ";
}

.page-about .team-card details[open] summary::before {
  content: "− ";
}

.page-about .team-card summary:hover,
.page-about .team-card summary:focus-visible {
  color: var(--lime);
}

.page-about .team-card details ul {
  margin: 10px 0 0;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ash);
}

.page-about .team-card details li {
  margin-bottom: 4px;
}

@media (min-width: 880px) {
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 16px;
  }
  .page-about .team-card:nth-child(2) {
    margin-top: 28px;
  }
  .page-about .team-card:nth-child(3) {
    margin-top: 56px;
  }
}

.page-about .rhythm {
  display: grid;
  gap: 8px;
  margin-top: clamp(24px, 3.4vw, 38px);
  padding: 18px 18px 20px;
  background: var(--panel-2);
  border: 1px solid var(--line);
}

.page-about .rhythm__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .rhythm__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
  max-width: 56em;
}

@media (min-width: 820px) {
  .page-about .rhythm {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }
  .page-about .rhythm__k {
    padding-top: 4px;
  }
}

/* ========== 反色带（全页仅此一处） ========== */
.page-about .about-band {
  background: var(--bone);
  color: var(--ink);
  padding: var(--about-pad) 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.page-about .about-band .eyebrow {
  color: var(--moss);
}

.page-about .about-band__h {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.14;
  color: var(--ink);
  max-width: 20em;
}

.page-about .about-band__p {
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: 15.5px;
  line-height: 1.85;
  color: #26352D;
  max-width: 46em;
}

.page-about .band-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(8, 18, 15, 0.24);
}

.page-about .band-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(8, 18, 15, 0.18);
}

.page-about .band-list li:last-child {
  border-bottom: 0;
}

.page-about .band-list__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--moss);
  padding-top: 4px;
}

.page-about .band-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: #1B2A22;
  max-width: 48em;
}

@media (min-width: 900px) {
  .page-about .band-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 36px;
    border-bottom: 1px solid rgba(8, 18, 15, 0.18);
  }
  .page-about .band-list li {
    border-bottom: 0;
  }
}

/* ========== 收尾推荐 ========== */
.page-about .about-next {
  position: relative;
  overflow: hidden;
  background: var(--ink-deep);
  border-top: 2px solid var(--line);
}

.page-about .about-next__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  filter: saturate(0.55);
  max-width: 100%;
}

.page-about .about-next__inner {
  position: relative;
  z-index: 1;
  padding: var(--about-pad) 0 calc(var(--about-pad) * 0.9);
}

.page-about .about-next__h {
  margin: 12px 0 clamp(20px, 3vw, 30px);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.14;
  color: var(--paper);
}

.page-about .next-links {
  display: grid;
  gap: 12px;
}

.page-about .next-link {
  display: block;
  padding: 16px 15px 18px;
  background: rgba(17, 28, 24, 0.88);
  border: 2px solid var(--line);
  text-decoration: none;
  color: var(--paper);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease), background 0.18s var(--ease);
}

.page-about .next-link:hover,
.page-about .next-link:focus-visible {
  border-color: var(--lime);
  background: rgba(12, 23, 19, 0.94);
  transform: translateY(-2px);
}

.page-about .next-link__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--lime);
  margin-bottom: 6px;
}

.page-about .next-link__t {
  display: block;
  font-size: 18px;
  font-weight: 500;
  color: var(--paper);
  margin-bottom: 5px;
}

.page-about .next-link__d {
  display: block;
  font-size: 14px;
  line-height: 1.68;
  color: var(--ash);
}

.page-about .next-contact {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ash);
  max-width: 52em;
}

.page-about .next-contact a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.16s var(--ease);
}

.page-about .next-contact a:hover,
.page-about .next-contact a:focus-visible {
  color: var(--lime);
}

@media (min-width: 800px) {
  .page-about .next-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .next-link,
  .page-about .tl-node::before,
  .page-about .ver-table tbody tr {
    transition: none;
  }
  .page-about .next-link:hover,
  .page-about .next-link:focus-visible {
    transform: none;
  }
}