.page-about{
  --about-line: rgba(46, 74, 66, 0.55);
  --about-sec: clamp(48px, 7vw, 88px);
  --about-ink-soft: #1A211D;
}

/* ============ 首屏 ============ */
.page-about .breadcrumb{
  padding-top: 8px;
  margin-bottom: 18px;
}

.page-about .about-hero{
  position: relative;
  display: grid;
  gap: 26px;
  padding: 26px 0 44px;
  border-radius: var(--radius-xl);
  background-image:
    repeating-linear-gradient(90deg, var(--about-line) 0 1px, transparent 1px 84px),
    radial-gradient(120% 78% at 82% 6%, rgba(23, 90, 76, 0.6), transparent 62%),
    linear-gradient(178deg, var(--ink) 0%, var(--green-deep) 100%);
  overflow: hidden;
}

.page-about .about-hero__copy{
  padding: 4px 20px 0;
  position: relative;
  z-index: 1;
}

.page-about .about-title{
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 9vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-about .about-title .u-skew{
  display: inline-block;
  transform: skewX(-4deg);
}

.page-about .about-lede{
  max-width: 34ch;
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--bone);
}

.page-about .about-lede--dim{
  color: var(--mist);
  font-size: 14px;
}

.page-about .about-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-about .about-hero__visual{
  margin: 0;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}

.page-about .about-hero__visual img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.92) contrast(1.04);
}

.page-about .about-hero__visual::after{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 20, 17, 0) 42%, rgba(13, 20, 17, 0.72) 100%);
  pointer-events: none;
}

/* ============ 通用区块 ============ */
.page-about .about-block{
  padding: var(--about-sec) 20px;
  border-radius: var(--radius-xl);
  margin-top: 18px;
}

.page-about .about-block--green{
  background: linear-gradient(160deg, var(--green-deep), var(--ink) 88%);
}

.page-about .about-block--indigo{
  background: linear-gradient(170deg, var(--indigo), var(--ink) 92%);
}

.page-about .about-block__head{
  max-width: 30ch;
  margin-bottom: 22px;
}

.page-about .about-h2{
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 5.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--bone);
}

.page-about .about-h2 .u-skew{
  display: inline-block;
  transform: skewX(-4deg);
}

.page-about .about-prose p{
  max-width: 34ch;
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-prose p:first-of-type{
  color: var(--bone);
}

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

/* ============ 片区编辑组 ============ */
.page-about .about-split{
  display: grid;
  gap: 26px;
}

.page-about .about-split__copy p{
  max-width: 34ch;
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-steps{
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-steps li{
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(12, 59, 50, 0.55);
  border: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .about-steps li:hover{
  border-color: var(--lime);
  background: rgba(23, 90, 76, 0.62);
}

.page-about .about-steps__idx{
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
  line-height: 1.9;
}

.page-about .about-steps__text{
  font-size: 14px;
  line-height: 1.7;
  color: var(--bone);
}

.page-about .about-split__figure{
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

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

.page-about .about-split__figure .media-frame__caption{
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  background: rgba(13, 20, 17, 0.9);
  border-top: 1px solid var(--line);
}

/* ============ 数字面板 ============ */
.page-about .about-stats{
  padding: var(--about-sec) 20px;
  margin-top: 18px;
  border-radius: var(--radius-xl);
  background:
    repeating-linear-gradient(0deg, rgba(46, 74, 66, 0.32) 0 1px, transparent 1px 72px),
    var(--ink);
}

.page-about .about-stats__head{
  max-width: 34ch;
  margin-bottom: 24px;
}

.page-about .about-stats__intro{
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

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

.page-about .stat-cell{
  background: #101915;
  padding: 20px 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background-color var(--dur) var(--ease);
}

.page-about .stat-cell:hover{
  background: var(--green-deep);
}

.page-about .stat-cell__num{
  font-family: var(--font-mono);
  font-size: 40px;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--lime);
  border-bottom: 2px solid var(--lime);
  align-self: flex-start;
  padding-bottom: 4px;
}

.page-about .stat-cell__label{
  font-size: 14px;
  font-weight: 500;
  color: var(--bone);
  margin-top: 4px;
}

.page-about .stat-cell__note{
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
}

/* ============ 历程刻度轨 ============ */
.page-about .about-timeline{
  padding: var(--about-sec) 20px;
  margin-top: 18px;
  border-radius: var(--radius-xl);
  background: linear-gradient(200deg, var(--wine) -30%, var(--ink) 46%, var(--ink) 100%);
}

.page-about .about-timeline__head{
  max-width: 28ch;
  margin-bottom: 26px;
}

.page-about .about-timeline__list{
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  position: relative;
  display: grid;
  gap: 8px;
}

.page-about .about-timeline__list::before{
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, rgba(200, 242, 78, 0.5), var(--about-line) 30%, var(--about-line) 90%, transparent);
}

.page-about .tl-item{
  position: relative;
  display: grid;
  gap: 4px;
  padding: 14px 0 16px;
}

.page-about .tl-item::before{
  content: "";
  position: absolute;
  left: -24px;
  top: 22px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--wine);
  border: 2px solid #E8BCA8;
  box-sizing: content-box;
  transform: translateX(-1px);
}

.page-about .tl-item--now::before{
  background: var(--lime);
  border-color: var(--lime);
  box-shadow: 0 0 0 4px rgba(200, 242, 78, 0.16);
}

.page-about .tl-year{
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-about .tl-item--now .tl-year{
  color: var(--lime);
}

.page-about .tl-body h3{
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--bone);
}

.page-about .tl-body p{
  margin: 0;
  max-width: 36ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ============ 合作生态 ============ */
.page-about .about-partners{
  padding: var(--about-sec) 20px;
  margin-top: 18px;
  border-radius: var(--radius-xl);
  background: linear-gradient(150deg, var(--green-mid), var(--ink) 78%);
}

.page-about .about-partners__figure{
  margin: 0 0 24px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transform: skewY(-1.2deg);
}

.page-about .about-partners__figure img{
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  transform: skewY(1.2deg) scale(1.05);
}

.page-about .about-partners__head{
  max-width: 40ch;
  margin-bottom: 22px;
}

.page-about .about-partners__head p{
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .partner-cell{
  background: #0F2B25;
  padding: 22px 18px 24px;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .partner-cell:hover{
  background: var(--indigo);
  transform: translateY(-3px);
}

.page-about .partner-cell__num{
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--orange);
  margin-bottom: 8px;
}

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

.page-about .partner-cell p{
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-partners__note{
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-partners__note a{
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ 资质与做事方式 ============ */
.page-about .about-credential{
  display: grid;
  gap: 22px;
  padding: var(--about-sec) 20px;
  margin-top: 18px;
  border-radius: var(--radius-xl);
  background: linear-gradient(120deg, var(--indigo), #17163A 70%, var(--ink));
}

.page-about .about-credential__badge{
  border: 1px solid rgba(232, 188, 168, 0.45);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  background: rgba(122, 33, 54, 0.28);
  align-self: start;
}

.page-about .about-credential__year{
  display: block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 10px;
}

.page-about .about-credential__name{
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--bone);
}

.page-about .about-habits{
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-habits li{
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--bone);
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(46, 74, 66, 0.7);
}

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

.page-about .about-habits__k{
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
  line-height: 1.9;
}

.page-about .about-actions--stacked{
  margin-top: 20px;
}

/* ============ 收束条 ============ */
.page-about .about-cta{
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
  margin-top: 18px;
  padding: 28px 22px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(110% 140% at 100% 0%, rgba(255, 122, 47, 0.3), transparent 58%),
    linear-gradient(100deg, var(--green-deep), var(--indigo));
  border: 1px solid var(--line);
}

.page-about .about-cta__title{
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 5vw, 26px);
  line-height: 1.25;
  color: var(--bone);
}

.page-about .about-cta__text p{
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ============ 断点 ============ */
@media (min-width: 640px){
  .page-about .about-stats__grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .stat-cell__num{
    font-size: 46px;
  }
}

@media (min-width: 820px){
  .page-about .about-hero{
    grid-template-columns: minmax(0, 55fr) minmax(0, 45fr);
    align-items: stretch;
    gap: 0;
    padding: 40px 0 56px;
  }
  .page-about .about-hero__copy{
    padding: 24px 34px 24px 34px;
    align-self: center;
  }
  .page-about .about-hero__visual{
    aspect-ratio: auto;
    min-height: 460px;
    border-radius: 0;
    clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-about .about-block,
  .page-about .about-stats,
  .page-about .about-timeline,
  .page-about .about-partners,
  .page-about .about-credential{
    padding-left: 36px;
    padding-right: 36px;
  }

  .page-about .about-split{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
    align-items: start;
  }

  .page-about .about-stats__grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-timeline__list{
    padding-left: 34px;
  }
  .page-about .tl-item{
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 4px 22px;
    padding: 18px 0 20px;
  }
  .page-about .tl-item::before{
    left: -34px;
    top: 30px;
  }
  .page-about .tl-body p{
    max-width: 46ch;
  }

  .page-about .partner-bar{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-credential{
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 30px;
    align-items: start;
  }

  .page-about .about-cta{
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: 32px 36px;
  }
  .page-about .about-cta__text{
    max-width: 44ch;
  }
}

@media (min-width: 1100px){
  .page-about .about-hero__copy{
    padding-left: 56px;
    padding-right: 48px;
  }
  .page-about .about-title{
    font-size: 52px;
    max-width: 12ch;
  }
  .page-about .about-block,
  .page-about .about-stats,
  .page-about .about-timeline,
  .page-about .about-partners,
  .page-about .about-credential{
    padding-left: 56px;
    padding-right: 56px;
  }
  .page-about .stat-cell{
    padding: 26px 22px 28px;
  }
  .page-about .stat-cell__num{
    font-size: 52px;
  }
  .page-about .about-cta{
    padding: 36px 56px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-about .about-steps li,
  .page-about .stat-cell,
  .page-about .partner-cell{
    transition: none;
  }
  .page-about .partner-cell:hover{
    transform: none;
  }
  .page-about .about-partners__figure,
  .page-about .about-partners__figure img{
    transform: none;
  }
}