/* ===== 品牌主场 / about ===== */
.page-about {
  --ab-grid: rgba(39, 70, 103, .38);
  --ab-panel: rgba(15, 39, 70, .66);
  --ab-hair: rgba(39, 70, 103, .55);
  position: relative;
  overflow-x: clip;
}

/* ---------- 面包屑微调 ---------- */
.page-about .breadcrumb {
  padding-block: 18px 0;
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .8125rem;
  color: var(--muted);
}

.page-about .breadcrumb__link {
  color: var(--cyan);
  text-decoration: none;
  transition: color 180ms var(--ease);
}

.page-about .breadcrumb__link:hover {
  color: var(--orange-soft);
}

/* ---------- 竖排小注 ---------- */
.page-about .vlabel {
  margin: 0;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .32em;
  color: var(--orange);
  white-space: nowrap;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-block: 26px 54px;
  display: grid;
  gap: 22px;
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -30px;
  left: -28px;
  width: min(620px, 92%);
  height: 320px;
  background: linear-gradient(118deg, rgba(255, 106, 26, .2) 0%, rgba(255, 106, 26, .04) 48%, rgba(255, 106, 26, 0) 72%);
  clip-path: polygon(0 0, 100% 0, 54% 100%, 0 100%);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero__title {
  margin: 0;
  max-width: 13ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2.4rem, 10.5vw, 5.4rem);
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--white);
}

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

.page-about .about-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--body-text);
}

.page-about .about-hero__tag {
  display: none;
}

.page-about .about-hero__media {
  margin: 0;
  position: relative;
  border: var(--edge);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--night-deep);
  box-shadow: var(--shadow-2);
}

.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(188deg, rgba(8, 26, 48, 0) 42%, rgba(8, 26, 48, .88) 100%);
  pointer-events: none;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}

.page-about .about-hero__facts > div {
  padding: 15px 13px;
  background: rgba(15, 39, 70, .82);
}

.page-about .about-hero__facts dt {
  font-size: .6875rem;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-about .about-hero__facts dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.1;
  color: var(--lime);
}

/* ---------- 品牌定位 ---------- */
.page-about .about-why {
  position: relative;
}

.page-about .about-why__grid {
  display: grid;
  gap: 22px;
}

.page-about .about-why__label {
  display: none;
}

.page-about .about-why__title {
  margin: 10px 0 18px;
  max-width: 22ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.7rem, 6.2vw, 2.7rem);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-about .about-why__para {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--body-text);
}

.page-about .about-why__para a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 216, 230, .4);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-about .about-why__para a:hover {
  color: var(--orange-soft);
  border-color: rgba(255, 164, 92, .6);
}

.page-about .about-why__who {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-why__who li {
  position: relative;
  padding-left: 22px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-why__who li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: 26px;
  margin-top: 32px;
}

.page-about .about-team__media,
.page-about .about-path__media {
  margin: 0;
  border: var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--night-deep);
  box-shadow: var(--shadow-1);
}

.page-about .about-team__media img,
.page-about .about-path__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-team__roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: role;
}

.page-about .about-role {
  position: relative;
  overflow: hidden;
  padding: 20px 20px 20px 24px;
  border: var(--edge);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(15, 39, 70, .9), rgba(15, 39, 70, .52));
  box-shadow: var(--shadow-1);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .about-role::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--orange), rgba(255, 106, 26, .12));
}

.page-about .about-role:hover {
  border-color: rgba(255, 106, 26, .5);
  transform: translateY(-2px);
}

.page-about .about-role__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  color: var(--white);
}

.page-about .about-role__unit {
  margin-left: 4px;
  font-size: .5em;
  color: var(--orange);
}

.page-about .about-role__name {
  margin: 10px 0 8px;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--white);
}

.page-about .about-role p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 发展脉络 ---------- */
.page-about .about-path__grid {
  display: grid;
  gap: 30px;
  margin-top: 34px;
}

.page-about .about-path__timeline {
  position: relative;
  padding-left: 30px;
}

.page-about .about-path__timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--orange) 0%, rgba(255, 106, 26, .3) 55%, rgba(184, 255, 77, .35) 100%);
}

.page-about .about-path__node {
  position: relative;
  padding-block: 6px 20px;
  border-bottom: 1px solid var(--ab-hair);
}

.page-about .about-path__node:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-path__dot {
  position: absolute;
  left: -30px;
  top: 12px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--night);
  border: 1px solid rgba(255, 106, 26, .9);
  box-shadow: 0 0 14px rgba(255, 106, 26, .42);
}

.page-about .about-path__phase {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .22em;
  color: var(--muted);
}

.page-about .about-path__trigger {
  display: block;
  width: 100%;
  padding: 0 26px 0 0;
  border: 0;
  background: none;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.58;
  color: var(--white);
  cursor: pointer;
  transition: color 180ms var(--ease);
}

.page-about .about-path__trigger::after {
  content: "";
  position: absolute;
  right: 2px;
  top: 32px;
  width: 11px;
  height: 11px;
  border-right: 1px solid var(--orange);
  border-bottom: 1px solid var(--orange);
  transform: rotate(45deg);
  transition: transform 180ms var(--ease), opacity 180ms var(--ease);
  opacity: .75;
}

.page-about .about-path__node[data-open="true"] .about-path__trigger::after,
.page-about .about-path__trigger[aria-expanded="true"]::after {
  transform: rotate(225deg);
}

.page-about .about-path__trigger:hover {
  color: var(--orange-soft);
}

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

.page-about .accordion__panel {
  display: none;
}

.page-about .accordion__panel[data-open="true"] {
  display: block;
}

.page-about .about-path__panel .accordion__inner p {
  margin: 10px 0 0;
  font-size: .9375rem;
  line-height: 1.82;
  color: var(--body-text);
}

/* ---------- 服务覆盖 ---------- */
.page-about .about-reach__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 32px;
}

.page-about .about-reach__card {
  position: relative;
  overflow: hidden;
  padding: 20px 16px;
  border: var(--edge);
  border-radius: var(--radius);
  background-color: var(--ab-panel);
  background-image:
    linear-gradient(var(--ab-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--ab-grid) 1px, transparent 1px);
  background-size: 22px 22px;
  transition: border-color 180ms var(--ease);
}

.page-about .about-reach__card:hover {
  border-color: rgba(255, 106, 26, .45);
}

.page-about .about-reach__card::after {
  content: "";
  position: absolute;
  right: -34px;
  top: -34px;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 26, .22), rgba(255, 106, 26, 0) 70%);
  pointer-events: none;
}

.page-about .about-reach__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2rem, 8vw, 2.9rem);
  font-weight: 600;
  line-height: 1;
  color: var(--white);
}

.page-about .about-reach__unit {
  margin-left: 4px;
  font-size: .42em;
  color: var(--orange);
}

.page-about .about-reach__label {
  margin: 12px 0 8px;
  font-size: .9375rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--orange-soft);
}

.page-about .about-reach__card p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners__grid {
  display: grid;
  gap: 26px;
}

.page-about .about-partners__para {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--body-text);
}

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

.page-about .about-partners__para a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 216, 230, .4);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-about .about-partners__para a:hover {
  color: var(--orange-soft);
  border-color: rgba(255, 164, 92, .6);
}

.page-about .about-partners__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

/* ---------- 资质与荣誉 ---------- */
.page-about .about-honors__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: var(--edge);
}

.page-about .about-honors__item {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-bottom: var(--edge);
}

.page-about .about-honors__mark {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .9375rem;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-about .about-honors__title {
  margin: 0 0 8px;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-about .about-honors__item p {
  margin: 0;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 收尾 ---------- */
.page-about .about-next__inner {
  position: relative;
  overflow: hidden;
  padding: 32px 22px;
  border: var(--edge);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 88% 0%, rgba(255, 106, 26, .2), rgba(255, 106, 26, 0) 58%),
    linear-gradient(180deg, rgba(15, 39, 70, .94), rgba(8, 26, 48, .72));
  box-shadow: var(--shadow-2);
}

.page-about .about-next__title {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.5rem, 6vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-about .about-next__lead {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: .9875rem;
  line-height: 1.8;
  color: var(--body-text);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .about-honors__item {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }

  .page-about .about-why__who {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 28px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-block: 34px 66px;
    gap: 26px;
  }

  .page-about .about-why__grid {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 48px;
  }

  .page-about .about-why__label {
    display: block;
  }

  .page-about .about-why__who {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-path__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .about-reach__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .about-reach__card {
    padding: 24px 20px;
  }

  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 52px;
    align-items: start;
  }

  .page-about .about-next__inner {
    padding: 44px 40px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-hero__tag {
    display: block;
    position: absolute;
    right: 0;
    top: 128px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-role,
  .page-about .about-path__trigger,
  .page-about .about-path__trigger::after,
  .page-about .about-path__dot,
  .page-about .breadcrumb__link {
    transition: none;
  }

  .page-about .about-role:hover {
    transform: none;
  }
}