.page-about {
  --about-on-green: #06231a;
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-head);
  color: var(--text);
}

.page-about h2 {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 1rem;
  transform: skewX(var(--skew));
}

.page-about h3 {
  font-size: 1.05rem;
  margin: 0 0 0.35rem;
  transform: skewX(var(--skew));
}

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

.page-about .about-label-orange::before {
  background-color: var(--orange);
}

/* ===== 首屏 ===== */
.page-about .about-hero {
  position: relative;
  padding: 1.5rem 0 3.5rem;
  background:
    radial-gradient(circle at 85% 20%, rgba(0, 255, 136, 0.12), transparent 40%),
    linear-gradient(118deg, transparent 78%, rgba(255, 106, 0, 0.06) 78%),
    var(--bg);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 16%;
  left: 8%;
  width: 120%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.5), transparent);
  transform: rotate(-6deg);
  opacity: 0.5;
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
  padding-top: 1.5rem;
  position: relative;
  z-index: 2;
}

.page-about .about-hero__copy {
  max-width: 640px;
}

.page-about .about-hero__desc {
  margin: 1rem 0 1.75rem;
  color: var(--text-body);
  max-width: 540px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .about-hero__badge {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
  background:
    repeating-linear-gradient(
      -45deg,
      rgba(44, 53, 80, 0.36) 0 1px,
      transparent 1px 14px
    ),
    linear-gradient(160deg, rgba(17, 22, 43, 0.8), rgba(10, 14, 39, 0.4));
  border-top: 1px solid rgba(0, 255, 136, 0.35);
  border-bottom: 1px solid rgba(255, 106, 0, 0.35);
  overflow: hidden;
}

.page-about .about-hero__badge-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: skewX(var(--skew));
}

.page-about .about-hero__badge-num {
  font-size: clamp(5.5rem, 17vw, 10rem);
  font-weight: 900;
  line-height: 0.9;
  color: var(--green);
  text-shadow: 0 0 40px rgba(0, 255, 136, 0.35);
}

.page-about .about-hero__badge-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-about .about-hero__badge-unit {
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 900;
  color: var(--orange);
}

.page-about .about-hero__badge-label {
  margin-top: 0.25rem;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}

/* ===== 品牌起源 ===== */
.page-about .about-origin {
  padding: 3.5rem 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

.page-about .about-origin__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .about-origin__copy > p {
  margin: 0 0 1rem;
}

.page-about .about-origin__quote {
  margin: 1.5rem 0 0;
  padding-left: 1rem;
  border-left: 3px solid var(--orange);
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--text);
  transform: skewX(var(--skew));
}

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

.page-about .about-origin__media img {
  width: 100%;
  height: auto;
  display: block;
  filter: contrast(1.08) saturate(0.85);
}

.page-about .about-origin__media figcaption {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== 发展里程碑 ===== */
.page-about .about-milestones {
  padding: 3.5rem 0;
  background:
    linear-gradient(rgba(44, 53, 80, 0.36) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 53, 80, 0.36) 1px, transparent 1px),
    var(--bg-alt);
  background-size: 40px 40px;
}

.page-about .about-milestones__head {
  margin-bottom: 2rem;
}

.page-about .about-milestones__layout {
  display: grid;
  gap: 2.5rem;
}

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

.page-about .about-milestones__media img {
  width: 100%;
  height: auto;
  max-height: 720px;
  object-fit: cover;
  display: block;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 1.75rem;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 35px;
  width: 2px;
  background: linear-gradient(180deg, var(--green) 0%, var(--orange) 100%);
  opacity: 0.4;
}

.page-about .about-timeline__item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 1rem;
}

.page-about .about-timeline__meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  position: relative;
  z-index: 2;
}

.page-about .about-timeline__year {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 0.85rem;
  color: var(--green);
  background: var(--bg);
  padding: 0.2rem 0.4rem;
  border-left: 2px solid var(--green);
  transform: skewX(var(--skew));
  width: 100%;
  text-align: center;
}

.page-about .about-timeline__dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(0, 255, 136, 0.14), 0 0 12px rgba(0, 255, 136, 0.4);
  animation: about-dot-pulse 3s var(--ease) infinite;
}

@keyframes about-dot-pulse {
  0%, 100% {
    box-shadow: 0 0 0 4px rgba(0, 255, 136, 0.12), 0 0 12px rgba(0, 255, 136, 0.35);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(0, 255, 136, 0.04), 0 0 18px rgba(0, 255, 136, 0.5);
  }
}

.age-about .about-timeline__card {
  background: rgba(17, 22, 43, 0.9);
  border-left: 2px solid var(--green);
  padding: 1rem 1.25rem;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-about .about-timeline__card h3 {
  font-size: 1.02rem;
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-body);
}

.page-about .about-timeline__item:hover .about-timeline__card,
.page-about .about-timeline__item:focus-within .about-timeline__card {
  transform: translateX(6px);
  border-left-color: var(--orange);
  background-color: rgba(17, 22, 43, 1);
}

.page-about .about-timeline__item:hover .about-timeline__dot {
  filter: drop-shadow(0 0 6px var(--green));
}

/* ===== 服务理念 ===== */
.page-about .about-philosophy {
  position: relative;
  padding: 3.5rem 0;
  background: var(--bg);
}

.page-about .about-philosophy::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--green), transparent 40%, var(--orange));
  transform: skewY(-1deg);
  transform-origin: top left;
}

.page-about .about-philosophy__head {
  margin-bottom: 2rem;
  max-width: 680px;
}

.page-about .about-philosophy__lead {
  margin: 0;
  color: var(--text-body);
}

.page-about .about-philosophy__grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-philosophy__item {
  position: relative;
  padding: 2rem 1.5rem 2.25rem;
  background: linear-gradient(160deg, rgba(17, 22, 43, 0.9), rgba(10, 14, 39, 0.95));
  border-top: 2px solid var(--green);
  border-left: 1px solid var(--border);
  overflow: hidden;
}

.page-about .about-philosophy__item::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, transparent 50%, rgba(255, 106, 0, 0.22) 50%);
}

.page-about .about-philosophy__num {
  display: block;
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--orange);
  -webkit-text-stroke: 1px var(--orange);
  -webkit-text-fill-color: transparent;
  text-fill-color: transparent;
  margin-bottom: 1.25rem;
}

.page-about .about-philosophy__item h3 {
  font-size: 1.15rem;
}

.page-about .about-philosophy__item p {
  margin: 0;
  color: var(--text-body);
}

/* ===== 技术优势 ===== */
.page-about .about-tech {
  position: relative;
  isolation: isolate;
  padding: 4rem 0;
  overflow: hidden;
}

.page-about .about-tech__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}

.page-about .about-tech__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.3;
}

.page-about .about-tech::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(95deg, rgba(10, 14, 39, 0.8) 30%, rgba(10, 14, 39, 0.62) 100%);
}

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

.page-about .about-tech__content > .btn {
  margin-top: 1.5rem;
}

.page-about .about-tech__list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .about-tech__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  padding: 1.1rem 1.25rem;
  background: rgba(17, 22, 43, 0.82);
  border-left: 2px solid var(--green);
}

.page-about .about-tech__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 96px;
  padding: 0.4rem 0.65rem;
  background: var(--green);
  color: var(--about-on-green);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 0.82rem;
  text-align: center;
  transform: skewX(var(--skew));
}

.page-about .about-tech__copy h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.page-about .about-tech__copy p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-body);
}

/* ===== 团队与生态 ===== */
.page-about .about-team {
  padding: 4rem 0;
  background: var(--bg-alt);
}

.page-about .about-team__head {
  max-width: 760px;
  margin-bottom: 2rem;
}

.page-about .about-team__lead {
  margin: 0;
  color: var(--text-body);
}

.page-about .about-team__stats {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-about .about-team__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem;
  background: var(--bg);
  border-left: 2px solid var(--orange);
  min-height: 130px;
}

.page-about .about-team__num {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 2.7rem);
  line-height: 1;
  color: var(--green);
  transform: skewX(var(--skew));
}

.page-about .about-team__label {
  display: block;
  margin-top: 0.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}

.page-about .about-team__honor {
  display: grid;
  gap: 0.75rem;
  justify-items: start;
  padding: 1.5rem;
  background: linear-gradient(90deg, rgba(255, 106, 0, 0.12), rgba(10, 14, 39, 0.3));
  border-top: 2px solid var(--orange);
}

.page-about .about-team__honor p {
  margin: 0;
  color: var(--text-body);
}

/* ===== 媒体查询 ===== */
@media (min-width: 720px) {
  .page-about .about-tech__list {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-team__stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .page-about .about-philosophy__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 880px) {
  .page-about .about-hero {
    padding-top: 2rem;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3rem;
  }

  .page-about .about-hero__badge {
    min-height: 340px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3rem;
  }

  .page-about .about-milestones__layout {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    align-items: start;
    gap: 3rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-team__stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__dot {
    animation: none;
  }
}