/* ============================================================
   品牌自述 / about
   ============================================================ */

.page-about {
  --about-hairline: rgba(199, 208, 204, 0.16);
  --about-hairline-ink: rgba(16, 21, 20, 0.14);
  --about-panel-hover: #16453c;
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-about .about-block {
  padding: 56px 0;
}

@media (min-width: 900px) {
  .page-about .about-block {
    padding: 96px 0;
  }
}

/* ---------- 通用排版件 ---------- */

.page-about .about-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-about .about-eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: currentColor;
}

.page-about .about-h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.16;
  letter-spacing: 0.005em;
  color: var(--paper);
}

.page-about .about-lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-about .about-position,
.page-about .about-process,
.page-about .about-reach,
.page-about .about-quote {
  background: var(--paper);
  color: var(--charcoal);
}

.page-about .about-position .about-eyebrow,
.page-about .about-process .about-eyebrow,
.page-about .about-reach .about-eyebrow {
  color: var(--danger);
}

.page-about .about-position .about-h2,
.page-about .about-process .about-h2,
.page-about .about-reach .about-h2 {
  color: var(--charcoal);
}

.page-about .about-position .about-lead,
.page-about .about-process .about-lead,
.page-about .about-reach .about-lead {
  color: rgba(16, 21, 20, 0.74);
}

/* ---------- 面包屑 ---------- */

.page-about .breadcrumbs {
  margin-bottom: 30px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-about .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-about .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: rgba(199, 208, 204, 0.45);
}

.page-about .breadcrumbs__link {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .breadcrumbs__link:hover,
.page-about .breadcrumbs__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .breadcrumbs__current {
  color: var(--orange);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: 36px 0 60px;
  background:
    radial-gradient(120% 100% at 92% 0%, rgba(255, 106, 19, 0.18), transparent 58%),
    radial-gradient(90% 80% at 0% 110%, rgba(77, 240, 208, 0.12), transparent 62%),
    var(--ink);
  isolation: isolate;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -18%;
  width: 46%;
  height: 72%;
  z-index: -1;
  background: linear-gradient(135deg, rgba(255, 106, 19, 0.1), transparent 72%);
  clip-path: polygon(35% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 36px;
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: start;
  }
}

.page-about .about-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-hero__eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--orange);
}

.page-about .about-hero__title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: 0.005em;
  color: var(--paper);
}

.page-about .about-hero__accent {
  color: var(--orange);
}

.page-about .about-hero__lead {
  margin: 0 0 28px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--silver);
}

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

.page-about .about-hero__panel {
  padding: 22px;
  background: var(--glass);
  border: 1px solid var(--about-hairline);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

@media (min-width: 900px) {
  .page-about .about-hero__panel {
    margin-top: 28px;
  }
}

.page-about .about-hero__panel-title {
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-hairline);
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 14px;
  background: rgba(11, 43, 38, 0.92);
}

.page-about .about-hero__stat-value {
  font-family: var(--font-data);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-hero__stat-label {
  font-size: 12px;
  line-height: 1.55;
  color: var(--silver);
}

/* ---------- 图文件 ---------- */

.page-about .about-figure {
  position: relative;
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-about .about-figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--silver);
}

.page-about .about-position .about-figure__caption {
  color: var(--charcoal);
  opacity: 0.66;
}

.page-about .about-figure--map img {
  clip-path: polygon(0 0, 100% 0, 100% 86%, 84% 100%, 0 100%);
  filter: saturate(0.92) contrast(1.04);
}

.page-about .about-figure--desk {
  padding: 12px;
  background: var(--glass);
  border: 1px solid var(--about-hairline);
  border-radius: var(--radius);
}

.page-about .about-figure--timeline img {
  border-top: 2px solid var(--orange);
}

/* ---------- 品牌定位与运营地区 ---------- */

.page-about .about-position__grid {
  display: grid;
  gap: 32px;
}

@media (min-width: 900px) {
  .page-about .about-position__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }
}

.page-about .about-position__prose p {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--charcoal);
}

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

.page-about .about-position__list {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-position__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--charcoal);
}

.page-about .about-position__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 10px;
  height: 2px;
  background: var(--orange);
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 58%, var(--ink) 100%);
  color: var(--paper);
}

.page-about .about-team__head {
  max-width: 720px;
  margin-bottom: 36px;
}

.page-about .about-team__grid {
  display: grid;
  gap: 32px;
}

@media (min-width: 960px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: start;
  }
}

.page-about .about-team__roles {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-hairline);
  border: 1px solid var(--about-hairline);
}

@media (min-width: 640px) {
  .page-about .about-team__roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-role {
  padding: 22px 20px;
  background: var(--ink-3);
  transition: background var(--dur) var(--ease);
}

.page-about .about-role:hover {
  background: var(--about-panel-hover);
}

.page-about .about-role__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .about-role__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

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

/* ---------- 流程 ---------- */

.page-about .about-process__head {
  max-width: 720px;
}

.page-about .about-process__steps {
  display: grid;
  gap: 1px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
  background: var(--about-hairline-ink);
  border-top: 1px solid var(--about-hairline-ink);
}

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

.page-about .about-step {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 20px;
  background: var(--paper);
}

.page-about .about-step__index {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--danger);
}

.page-about .about-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
  color: var(--charcoal);
}

.page-about .about-step__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(16, 21, 20, 0.78);
}

/* ---------- 版本演进 ---------- */

.page-about .about-evolution {
  background: var(--ink);
  color: var(--paper);
}

.page-about .about-evolution__head {
  max-width: 760px;
}

.page-about .about-evolution .about-figure {
  margin: 32px 0 28px;
}

.page-about .about-timeline {
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0 0 18px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--orange) transparent;
}

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

.page-about .about-timeline::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.08);
}

.page-about .about-timeline::-webkit-scrollbar-thumb {
  background: var(--orange);
}

.page-about .about-timeline__node {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 0 0 82%;
  scroll-snap-align: start;
  padding: 22px 20px 24px;
  background: var(--ink-2);
  border-top: 3px solid var(--about-hairline);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-timeline__node:hover {
  border-top-color: var(--orange);
  background: var(--about-panel-hover);
  transform: translateY(-4px);
}

.page-about .about-timeline__node:focus {
  outline: none;
}

.page-about .about-timeline__node:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-top-color: var(--orange);
}

@media (min-width: 760px) {
  .page-about .about-timeline__node {
    flex-basis: calc(50% - 8px);
  }
}

@media (min-width: 1080px) {
  .page-about .about-timeline__node {
    flex-basis: calc(33.333% - 11px);
  }
}

.page-about .about-timeline__year {
  font-family: var(--font-data);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .about-timeline__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-timeline__desc {
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

.page-about .about-timeline__more {
  padding-top: 10px;
  border-top: 1px dashed var(--about-hairline);
  font-size: 13px;
  line-height: 1.7;
  color: var(--orange-2);
}

@media (hover: hover) and (min-width: 960px) {
  .page-about .about-timeline__more {
    max-height: 0;
    padding-top: 0;
    border-top-color: transparent;
    opacity: 0;
    overflow: hidden;
    transition: max-height 220ms var(--ease), opacity 180ms var(--ease), padding-top 220ms var(--ease);
  }

  .page-about .about-timeline__node:hover .about-timeline__more,
  .page-about .about-timeline__node:focus .about-timeline__more,
  .page-about .about-timeline__node:focus-visible .about-timeline__more {
    max-height: 12em;
    padding-top: 10px;
    border-top-color: var(--about-hairline);
    opacity: 1;
  }
}

/* ---------- 覆盖与节奏 ---------- */

.page-about .about-reach__grid {
  display: grid;
  gap: 32px;
}

@media (min-width: 960px) {
  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }
}

.page-about .about-reach__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-hairline-ink);
  border: 1px solid var(--about-hairline-ink);
}

.page-about .about-reach__stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 16px;
  background: var(--paper);
}

.page-about .about-reach__value {
  font-family: var(--font-data);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--danger);
}

.page-about .about-reach__label {
  font-size: 13px;
  line-height: 1.62;
  color: rgba(16, 21, 20, 0.72);
}

.page-about .about-reach__clock {
  margin-top: 40px;
  padding: 24px;
  background: var(--charcoal);
  border-radius: var(--radius);
  color: var(--paper);
}

.page-about .about-reach__clock-title {
  margin: 0 0 6px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-about .about-reach__clock-range {
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: clamp(20px, 3.2vw, 32px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-about .about-reach__clock-bar {
  display: block;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.page-about .about-reach__clock-bar span {
  display: block;
  width: 48%;
  height: 100%;
  margin-left: 50%;
  background: linear-gradient(90deg, var(--orange), var(--orange-2));
}

.page-about .about-reach__clock-note {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 13px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 合作生态 ---------- */

.page-about .about-partners {
  background: var(--ink);
  color: var(--paper);
}

.page-about .about-partners__grid {
  display: grid;
  gap: 32px;
}

@media (min-width: 960px) {
  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }
}

.page-about .about-partners__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-hairline);
  border: 1px solid var(--about-hairline);
}

.page-about .about-partner {
  padding: 22px 20px;
  background: var(--ink-2);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-partner:hover {
  background: var(--about-panel-hover);
  transform: translateX(4px);
}

.page-about .about-partner__name {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-about .about-partner__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--silver);
}

/* ---------- 引文 ---------- */

.page-about .about-quote__block {
  max-width: 860px;
  margin: 0 auto;
  padding-left: 22px;
  border-left: 3px solid var(--orange);
}

.page-about .about-quote__text {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.4vw, 29px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--charcoal);
}

.page-about .about-quote__source {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--danger);
}

/* ---------- 延伸入口 ---------- */

.page-about .about-next {
  background: var(--ink);
  border-top: 1px solid var(--about-hairline);
}

.page-about .about-next__title {
  margin-bottom: 0;
}

.page-about .about-next__list {
  display: grid;
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  background: var(--about-hairline);
}

@media (min-width: 760px) {
  .page-about .about-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-next__item {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 20px 18px;
  background: var(--ink);
  transition: background var(--dur) var(--ease);
}

.page-about .about-next__item:hover {
  background: var(--about-panel-hover);
}

.page-about .about-next__link {
  align-self: flex-start;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-next__item:hover .about-next__link {
  border-bottom-color: var(--orange);
}

.page-about .about-next__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  color: var(--cyan);
}

.page-about .about-next__meta {
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver);
}

/* ---------- 无障碍与动效收敛 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__node,
  .page-about .about-role,
  .page-about .about-partner,
  .page-about .about-next__item,
  .page-about .about-next__link,
  .page-about .breadcrumbs__link {
    transition: none;
  }

  .page-about .about-timeline__node:hover,
  .page-about .about-partner:hover {
    transform: none;
  }
}
<<<END>>>