/* ==========================================================================
   关于鑫峰页面：企业介绍型关于页
   ========================================================================== */

.about-page {
  background: var(--color-bg);
}

.about-hero {
  background: var(--grad-hero);
}

.about-hero__bg {
  z-index: 0;
  background-image: linear-gradient(
      100deg,
      rgba(8, 18, 32, 0.94) 0%,
      rgba(8, 18, 32, 0.78) 42%,
      rgba(8, 18, 32, 0.36) 74%,
      rgba(8, 18, 32, 0.52) 100%
    ),
    var(--xf-about-hero-bg, none);
  background-size: cover;
  background-position: center;
}

.about-hero::before {
  display: none;
}

.about-hero__brand {
  position: absolute;
  top: clamp(9rem, 14vh, 15rem);
  left: clamp(2rem, 7vw, 10rem);
  right: clamp(2rem, 7vw, 10rem);
  z-index: 1;
  max-width: calc(100% - clamp(4rem, 14vw, 20rem));
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 1rem;
  color: rgba(255, 255, 255, 0.08);
  pointer-events: none;
  user-select: none;
}

.about-hero__brand::before {
  display: none;
}

.about-hero__brand::after {
  display: none;
}

.about-hero__brand span {
  position: relative;
  display: block;
  max-width: 100%;
  overflow: hidden;
  font-size: clamp(8rem, 11.6vw, 16rem);
  font-weight: 900;
  line-height: 0.82;
  letter-spacing: 0;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1.4px rgba(46, 230, 202, 0.34);
  text-shadow: none;
}

.about-hero__brand span::before {
  content: "XINFENG";
  position: absolute;
  inset: 0;
  z-index: 0;
  color: transparent;
  -webkit-text-stroke: 4px rgba(255, 255, 255, 0.035);
}

.about-hero__brand span::after {
  content: "XINFENG";
  position: absolute;
  inset: 0;
  color: transparent;
  -webkit-text-stroke: 1px rgba(46, 230, 202, 0.16);
  mask-image: linear-gradient(180deg, #000 0%, transparent 62%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 62%);
}

.about-hero__brand small {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  width: auto;
  color: rgba(46, 230, 202, 0.42);
  font-size: clamp(1.1rem, 1vw, 1.5rem);
  font-weight: 800;
  letter-spacing: 0;
  text-align: right;
}

.about-hero__brand small::before {
  content: "";
  width: clamp(5rem, 8vw, 10rem);
  height: 1px;
  background: rgba(46, 230, 202, 0.34);
}

.about-hero__inner {
  width: 100%;
  padding-block: 8rem;
}

.about-hero__copy {
  max-width: 76rem;
}

.about-hero__copy h1 {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-3);
}

.about-hero__copy p {
  max-width: 62rem;
  color: #c7d5e3;
  margin-bottom: var(--space-4);
}

.about-hero__actions {
  gap: 1.4rem;
}

.about-company {
  background: #fff;
}

.company-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(36rem, 0.92fr);
  gap: 5rem;
  align-items: stretch;
  margin-bottom: var(--space-5);
}

.company-lead p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--fs-lg);
  line-height: 1.9;
}

.company-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 38rem;
  padding: 3.2rem;
  border-radius: var(--radius-xl);
  color: #dce8f2;
  background: linear-gradient(180deg, rgba(8, 18, 32, 0.12), rgba(8, 18, 32, 0.92)),
    var(--xf-about-company-card-bg, none);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.company-card span {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--color-accent-soft);
  font-size: var(--fs-xs);
  font-weight: 800;
  letter-spacing: 0;
}

.company-card strong {
  display: block;
  font-size: var(--fs-h3);
  line-height: 1.35;
  margin-bottom: 1.2rem;
}

.company-card p {
  color: #b9c8d8;
  line-height: 1.8;
}

.company-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
}

.company-detail {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 24rem;
  padding: 7.2rem 3rem 3rem;
  border-radius: 2.4rem;
  color: #dbe7f2;
  background: #081220;
  border: 0;
  box-shadow: 0 1.4rem 3.6rem rgba(10, 37, 64, 0.12);
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.company-detail::before {
  content: "";
  position: absolute;
  inset: -3px;
  z-index: 0;
  background-image: var(--card-bg);
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}

.company-detail::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  background:
    linear-gradient(180deg, rgba(8, 18, 32, 0.04) 0%, rgba(8, 18, 32, 0.24) 38%, rgba(8, 18, 32, 0.88) 100%),
    linear-gradient(90deg, rgba(8, 18, 32, 0.74) 0%, rgba(8, 18, 32, 0.26) 56%, rgba(8, 18, 32, 0.04) 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  pointer-events: none;
}

@media (hover: hover) {
  .company-detail:hover {
    transform: translateY(-5px);
    box-shadow: 0 2rem 4.8rem rgba(10, 37, 64, 0.18);
  }
}

.company-detail--position {
  --card-bg: var(--xf-about-company-position-bg, none);
}

.company-detail--capability {
  --card-bg: var(--xf-about-company-capability-bg, none);
}

.company-detail--service {
  --card-bg: var(--xf-about-company-service-bg, none);
}

.company-detail h3 {
  position: relative;
  z-index: 2;
  font-size: var(--fs-h4);
  line-height: 1.35;
  margin-bottom: 1rem;
  text-shadow: 0 0.2rem 1.2rem rgba(0, 0, 0, 0.28);
}

.company-detail p {
  position: relative;
  z-index: 2;
  max-width: 100%;
  color: rgba(230, 239, 248, 0.9);
  line-height: 1.82;
  text-shadow: 0 0.1rem 0.8rem rgba(0, 0, 0, 0.28);
}

.about-growth {
  overflow: hidden;
}

.growth-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(38rem, 0.82fr);
  gap: 4rem;
  align-items: start;
  margin-bottom: var(--space-5);
}

.growth-copy p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--fs-lg);
  line-height: 1.9;
}

.values-panel {
  padding: 3rem;
  border-radius: var(--radius-xl);
  color: #dbe6f0;
  background: var(--grad-dark);
  box-shadow: var(--shadow-lg);
}

.values-panel h3 {
  font-size: var(--fs-h3);
  margin-bottom: var(--space-3);
}

.values-panel li {
  padding-block: 1.4rem;
  color: #b8c7d8;
  line-height: 1.85;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.values-panel li:first-child {
  border-top: 0;
  padding-top: 0;
}

.values-panel strong {
  color: var(--color-accent-soft);
}

.growth-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.4rem;
  padding-top: 4.8rem;
}

.growth-timeline::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 2.2rem;
  height: 3px;
  background: linear-gradient(90deg, rgba(0, 212, 180, 0.14), rgba(0, 212, 180, 0.72), rgba(0, 212, 180, 0.14));
  border-radius: var(--radius-pill);
  box-shadow: 0 0.8rem 1.8rem rgba(0, 200, 150, 0.2);
}

.timeline-item {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 30rem;
  padding: 2.6rem 2.6rem 2.2rem;
  border-radius: var(--radius-lg);
  color: #dbe7f2;
  background: #081220;
  border: 0;
  box-shadow: 0 1.4rem 3.6rem rgba(10, 37, 64, 0.12);
  overflow: visible;
  isolation: isolate;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.timeline-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  overflow: hidden;
  pointer-events: none;
}

.timeline-bg::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: inherit;
  background-image: var(--card-bg);
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}

.timeline-item::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  background:
    linear-gradient(180deg, rgba(8, 18, 32, 0.12) 0%, rgba(8, 18, 32, 0.62) 48%, rgba(8, 18, 32, 0.96) 100%),
    linear-gradient(90deg, rgba(8, 18, 32, 0.7) 0%, rgba(8, 18, 32, 0.24) 58%, rgba(8, 18, 32, 0.08) 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  pointer-events: none;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 2.8rem;
  top: -3.8rem;
  z-index: 2;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: #fff;
  border: 0.5rem solid var(--color-bg-soft);
  box-shadow: inset 0 0 0 0.5rem var(--color-accent), 0 0 0 0.7rem rgba(0, 212, 180, 0.2);
}

.timeline-item > :not(.timeline-bg) {
  position: relative;
  z-index: 2;
}

.timeline-item::marker {
  content: "";
}

@media (hover: hover) {
  .timeline-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 2rem 4.8rem rgba(10, 37, 64, 0.18);
  }
}

.timeline-item--materials {
  --card-bg: var(--xf-about-timeline-materials-bg, none);
}

.timeline-item--testing {
  --card-bg: var(--xf-about-timeline-testing-bg, none);
}

.timeline-item--industry {
  --card-bg: var(--xf-about-timeline-industry-bg, none);
}

.timeline-item--service {
  --card-bg: var(--xf-about-timeline-service-bg, none);
}

.timeline-item time {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-width: 7.6rem;
  margin-bottom: 2rem;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius-pill);
  color: #042b22;
  background: var(--grad-accent);
  font-size: var(--fs-lg);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
  box-shadow: 0 1rem 2.4rem rgba(0, 200, 150, 0.28);
  text-shadow: none;
}

.timeline-item h3 {
  position: relative;
  z-index: 2;
  font-size: var(--fs-h4);
  line-height: 1.4;
  margin-top: 0;
  margin-bottom: 1rem;
  text-shadow: 0 0.2rem 1.2rem rgba(0, 0, 0, 0.3);
}

.timeline-item p {
  position: relative;
  z-index: 2;
  color: rgba(230, 239, 248, 0.9);
  font-size: var(--fs-sm);
  line-height: 1.85;
  text-shadow: 0 0.1rem 0.8rem rgba(0, 0, 0, 0.28);
}

.industries-head {
  max-width: none;
  margin-bottom: var(--space-5);
  text-align: center;
}

.industries-head .section__eyebrow,
.industries-head .section__title {
  margin-inline: auto;
}

.industries-head p {
  max-width: none;
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--fs-lg);
  line-height: 1.9;
  text-align: left;
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.4rem;
}

.industry-card {
  display: grid;
  grid-template-columns: 20rem 1fr;
  overflow: hidden;
  min-height: 24rem;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

@media (hover: hover) {
  .industry-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
  }
}

.industry-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9);
  background: var(--color-bg-metal);
}

.industry-card div {
  padding: 2.6rem;
}

.industry-card span {
  display: inline-flex;
  margin-bottom: 1rem;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-pill);
  color: var(--color-cta);
  background: rgba(0, 212, 180, 0.1);
  font-size: var(--fs-xs);
  font-weight: 800;
}

.industry-card h3 {
  color: var(--color-ink);
  font-size: var(--fs-h4);
  line-height: 1.45;
  margin-bottom: 1rem;
}

.industry-card p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.85;
}

.about-request {
  background: linear-gradient(135deg, #07111f 0%, #102036 52%, #0a2540 100%);
}

.about-request__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(44rem, 1.14fr);
  gap: 4rem;
  align-items: start;
}

.request-panel h2 {
  color: var(--color-text-inverse);
  font-size: var(--fs-h2);
  margin-bottom: var(--space-2);
}

.request-panel p {
  color: var(--color-dark-copy-subtle);
  font-size: var(--fs-lg);
  line-height: 1.85;
}

.request-tags {
  gap: 1rem;
  margin-top: var(--space-4);
}

.request-tags span {
  padding: 0.8rem 1.3rem;
  border-radius: var(--radius-pill);
  color: var(--color-accent-soft);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.13);
  font-size: var(--fs-sm);
  font-weight: 700;
}

@media (max-width: 1200px) {
  .company-layout,
  .growth-layout,
  .about-request__inner {
    grid-template-columns: 1fr;
  }

  .company-details {
    grid-template-columns: 1fr 1fr;
  }

  .growth-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 5.2rem 2rem;
  }

  .growth-timeline::before {
    display: none;
  }

  .industry-grid {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 768px) {
  .about-hero__inner {
    padding-block: 8rem 5.6rem;
  }

  .about-hero__brand {
    top: 8.6rem;
    left: 1.6rem;
    right: 1.6rem;
    max-width: calc(100% - 3.2rem);
    gap: 0.8rem;
  }

  .about-hero__brand span {
    font-size: clamp(4.6rem, 15vw, 6.8rem);
    letter-spacing: 0;
  }

  .about-hero__brand small {
    font-size: 0.9rem;
    letter-spacing: 0;
  }

  .about-hero__brand small::before {
    width: 4.8rem;
  }

  .company-details,
  .growth-timeline {
    grid-template-columns: 1fr;
  }

  .company-card {
    min-height: 30rem;
    padding: 2.4rem;
  }

  .values-panel,
  .timeline-item,
  .about-form {
    padding: 2.4rem;
  }

  .company-detail {
    min-height: 22rem;
    padding: 5.6rem 2.4rem 2.4rem;
  }

  .growth-timeline {
    gap: 2.4rem;
    padding-top: 0;
  }

  .growth-timeline::before {
    display: block;
    left: 1rem;
    right: auto;
    top: 0.4rem;
    bottom: 0.4rem;
    width: 4px;
    height: auto;
  }

  .timeline-item {
    min-height: 26rem;
    margin-left: 2.8rem;
  }

  .timeline-item::before {
    left: -2.8rem;
    top: 2.8rem;
  }

  .timeline-item h3 {
    margin-top: 0;
  }

  .industry-card {
    grid-template-columns: 1fr;
  }

  .industry-card img {
    aspect-ratio: 16 / 9;
  }

}