.about-page {
  --about-navy: #14242b;
  --about-teal: #008f80;
  --about-mist: #f3f8f8;
  overflow-x: hidden;
  background: #fff;
}

.about-page-shell {
  width: min(1180px, calc(100vw - 64px));
  margin: 0 auto;
}

.about-page-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 440px;
  overflow: hidden;
  color: var(--about-navy);
  background: #f5f8f8;
}

.about-page-hero > img,
.about-closing > img {
  position: absolute;
  inset: 0;
  height: 100%;
  object-fit: cover;
}

.about-page-hero > img {
  object-position: 63% 48%;
}

.about-page-hero-shade,
.about-closing-shade {
  position: absolute;
  inset: 0;
}

.about-page-hero-shade {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.99) 0%, rgba(255, 255, 255, 0.95) 31%, rgba(255, 255, 255, 0.48) 54%, rgba(255, 255, 255, 0.04) 78%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(238, 245, 246, 0.16));
}

.about-page-hero-content {
  position: relative;
  z-index: 1;
  padding: 74px 0 70px;
}

.about-page-eyebrow,
.about-section-heading > span,
.about-closing-inner > span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--about-teal);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.about-page-eyebrow::before,
.about-section-heading > span::before,
.about-closing-inner > span::before {
  width: 24px;
  height: 2px;
  background: currentColor;
  content: "";
}

.about-page-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(44px, 5vw, 70px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #101719;
}

.about-page-hero h2 {
  max-width: 640px;
  margin: 16px 0 0;
  font-size: clamp(22px, 2.4vw, 34px);
  line-height: 1.35;
  font-weight: 800;
  color: #151d20;
}

.about-page-hero h2 em {
  color: var(--about-teal);
  font-style: normal;
}

.about-page-hero p {
  max-width: 610px;
  margin: 19px 0 0;
  color: #4d5f64;
  font-size: 15px;
  line-height: 1.85;
}

.about-page-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 46px;
  margin-top: 27px;
  padding: 0 25px;
  color: #fff;
  background: var(--about-teal);
  border: 1px solid var(--about-teal);
  border-radius: 5px;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(0, 143, 128, 0.24);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.about-page-button:hover {
  background: #007c70;
  border-color: #007c70;
}

.about-page-button:focus-visible,
.about-project-card:focus-visible,
.about-page .site-header a:focus-visible,
.about-page .menu-toggle:focus-visible {
  outline: 3px solid rgba(0, 143, 128, 0.36);
  outline-offset: 4px;
}

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

.about-section-heading {
  max-width: 700px;
  margin: 0 0 25px;
  text-align: left;
}

.about-section-heading > span {
  display: none;
}

.about-section-heading h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0 0;
  color: var(--about-navy);
  font-size: clamp(29px, 3.3vw, 42px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.about-section-heading h2::before {
  flex: 0 0 auto;
  width: 4px;
  height: 25px;
  background: var(--about-teal);
  content: "";
}

.about-section-heading p {
  margin: 9px 0 0 16px;
  color: #6d7d82;
  font-size: 14px;
  line-height: 1.75;
}

.about-client-logo-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  overflow: hidden;
  background: #fff;
  border: 1px solid #e2eaec;
  border-radius: 7px;
}

.about-client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 78px;
  padding: 16px 14px;
  border-left: 1px solid #e8eeee;
}

.about-client-logo:first-child {
  border-left: 0;
}

.about-client-logo img {
  width: auto;
  max-width: 88%;
  max-height: 38px;
  object-fit: contain;
  filter: saturate(0.92);
}

.about-client-logo:first-child img {
  max-width: calc(50% - 6px);
  max-height: 30px;
}

.about-client-logo[aria-label="银河电力"] img {
  transform: scale(2.35);
}

.about-client-logo[aria-label="中建二局"] img {
  transform: scale(1.55);
}

.about-project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.about-project-card {
  position: relative;
  min-height: 0;
  overflow: hidden;
  color: var(--about-navy);
  background: #fff;
  border: 1px solid #e2eaec;
  border-radius: 6px;
}

.about-project-card img {
  height: 198px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-project-shade {
  display: none;
}

.about-project-copy {
  display: block;
  min-height: 48px;
  padding: 12px 14px;
  text-align: center;
}

.about-project-copy small {
  display: none;
}

.about-project-copy strong {
  display: block;
  font-size: 14px;
  line-height: 1.4;
}

.about-project-card > i {
  display: none;
}

.about-project-card:hover img {
  transform: scale(1.025);
}

.about-team,
.about-quality {
  background: var(--about-mist);
}

.about-capabilities {
  background: #fff;
}

.about-capability-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  overflow: hidden;
  background: #fff;
  border-top: 1px solid #dfe8ea;
  border-bottom: 1px solid #dfe8ea;
}

.about-capability-card {
  min-height: 168px;
  padding: 23px 18px 20px;
  border-left: 1px solid #e5edef;
}

.about-capability-card:first-child {
  border-left: 0;
}

.about-capability-card > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 31px;
  height: 31px;
  color: var(--about-teal);
  background: transparent;
  font-size: 19px;
}

.about-capability-card h3 {
  margin: 15px 0 7px;
  color: var(--about-navy);
  font-size: 18px;
}

.about-capability-card p {
  margin: 0;
  color: #728185;
  font-size: 12px;
  line-height: 1.7;
}

.about-factory-gallery {
  display: grid;
  grid-template-columns: 1.45fr repeat(3, 1fr);
  gap: 10px;
  height: 274px;
}

.about-factory-image {
  margin: 0;
  overflow: hidden;
  background: #dce7e8;
  border-radius: 5px;
}

.about-factory-image img {
  height: 100%;
  object-fit: cover;
}

.about-factory-image:first-child img {
  object-position: 52% 54%;
}

.about-factory-scope {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
  color: #4f6267;
  font-size: 13px;
  font-weight: 600;
}

.about-factory-scope strong {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 16px;
  color: #fff;
  background: var(--about-teal);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.03em;
  box-shadow: 0 7px 18px rgba(0, 143, 128, 0.16);
}

.about-factory-scope span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 13px;
  color: #40565b;
  background: #f4f9f8;
  border: 1px solid #d9e8e6;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.about-factory-scope span::before {
  display: none;
}

.about-team-visual,
.about-quality-visual {
  overflow: hidden;
  background: #fff;
  border: 1px solid #dfe8ea;
  border-radius: 5px;
}

.about-team-photo-strip,
.about-quality-photo-strip {
  display: block;
  width: 100%;
  object-fit: cover;
}

.about-team-photo-strip {
  height: 220px;
  object-position: center 25%;
}

.about-team-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0;
}

.about-team-card {
  min-height: 0;
  color: var(--about-navy);
  background: #fff;
  border-left: 1px solid #e3ebed;
}

.about-team-card:first-child {
  border-left: 0;
}

.about-team-card > div {
  min-height: 92px;
  padding: 12px 10px 13px;
  text-align: center;
}

.about-team-card i {
  color: #5bd3c7;
  font-size: 15px;
}

.about-team-card h3 {
  margin: 5px 0 4px;
  font-size: 16px;
}

.about-team-card p {
  margin: 0;
  color: #718086;
  font-size: 11px;
  line-height: 1.45;
}

.about-process {
  color: #fff;
  background: #0c3039;
}

.about-process .about-section-heading h2 {
  color: #fff;
}

.about-process .about-section-heading p {
  color: #aec1c5;
}

.about-process-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.about-process-step {
  min-height: 198px;
  padding: 24px 22px 22px;
  text-align: left;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 5px;
}

.about-process-step > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.about-process-step strong {
  color: #73d7cc;
  font-size: 13px;
  letter-spacing: 0.16em;
}

.about-process-step i {
  color: #73d7cc;
  font-size: 23px;
}

.about-process-step h3 {
  margin: 30px 0 0;
  color: #fff;
  font-size: 20px;
}

.about-process-step p {
  margin: 10px 0 0;
  color: #b7c8cb;
  font-size: 13px;
  line-height: 1.65;
}

.about-quality-photo-strip {
  height: 220px;
  object-position: center 25%;
}

.about-quality-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}

.about-quality-card {
  background: #fff;
  border-left: 1px solid #e0e9eb;
}

.about-quality-card:first-child {
  border-left: 0;
}

.about-quality-card > div {
  min-height: 144px;
  padding: 17px 16px 16px;
}

.about-quality-card h3 {
  margin: 0 0 12px;
  color: var(--about-navy);
  font-size: 16px;
}

.about-quality-card ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-quality-card li {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #6f7d81;
  font-size: 11px;
  line-height: 1.4;
}

.about-quality-card li i {
  color: var(--about-teal);
  font-size: 9px;
}

.about-closing {
  position: relative;
  min-height: 306px;
  overflow: hidden;
  color: var(--about-navy);
  background: #f3f8f8;
}

.about-closing > img {
  object-position: 50% 38%;
}

.about-closing-shade {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.99), rgba(255, 255, 255, 0.92) 42%, rgba(255, 255, 255, 0.28) 72%);
}

.about-closing-inner {
  position: relative;
  z-index: 1;
  padding: 60px 0;
}

.about-closing-inner > span {
  color: var(--about-teal);
}

.about-closing h2 {
  margin: 11px 0 0;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.15;
  font-weight: 900;
}

.about-closing p {
  max-width: 610px;
  margin: 14px 0 0;
  color: #53656a;
  font-size: 14px;
  line-height: 1.75;
}

.about-closing .about-page-button {
  margin-right: 10px;
  margin-top: 22px;
}

.about-page-button.is-ghost {
  color: var(--about-navy);
  background: rgba(255, 255, 255, 0.7);
  border-color: #b8cacc;
  box-shadow: none;
}

.about-page-button.is-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 1120px) {
  .about-page-shell {
    width: min(940px, calc(100vw - 48px));
  }

  .about-page-hero {
    min-height: 430px;
  }

  .about-client-logo-grid,
  .about-capability-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .about-client-logo:nth-child(4),
  .about-capability-card:nth-child(4) {
    border-left: 0;
  }

  .about-client-logo:nth-child(n + 4),
  .about-capability-card:nth-child(n + 4) {
    border-top: 1px solid #e5edef;
  }

  .about-project-card {
    min-height: 0;
  }

  .about-factory-gallery {
    grid-template-columns: repeat(2, 1fr);
    height: auto;
  }

  .about-factory-image {
    height: 230px;
  }

  .about-team-visual,
  .about-quality-visual {
    overflow-x: auto;
  }

  .about-team-photo-strip,
  .about-team-grid {
    min-width: 900px;
  }

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

  .about-quality-photo-strip,
  .about-quality-grid {
    min-width: 760px;
  }
}

@media (max-width: 720px) {
  .about-page-shell {
    width: calc(100vw - 36px);
  }

  .about-page-hero {
    align-items: flex-end;
    min-height: 560px;
  }

  .about-page-hero > img {
    object-position: 68% 50%;
  }

  .about-page-hero-shade {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.18) 4%, rgba(255, 255, 255, 0.88) 64%, rgba(255, 255, 255, 0.98));
  }

  .about-page-hero-content {
    padding: 140px 0 45px;
  }

  .about-page-hero h1 {
    font-size: 46px;
  }

  .about-page-hero h2 {
    font-size: 23px;
  }

  .about-page-hero p {
    font-size: 14px;
    line-height: 1.72;
  }

  .about-page-button {
    width: 100%;
  }

  .about-page-section {
    padding: 44px 0;
  }

  .about-section-heading {
    margin-bottom: 25px;
  }

  .about-section-heading h2 {
    font-size: 29px;
  }

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

  .about-client-logo:nth-child(odd) {
    border-left: 0;
  }

  .about-client-logo:nth-child(n + 3) {
    border-top: 1px solid #e5edef;
  }

  .about-project-grid,
  .about-capability-grid {
    grid-template-columns: 1fr;
  }

  .about-project-card {
    min-height: 0;
  }

  .about-project-card img {
    height: 210px;
  }

  .about-capability-grid {
    overflow: visible;
    background: transparent;
    border: 0;
    box-shadow: none;
    gap: 9px;
  }

  .about-capability-card,
  .about-capability-card:nth-child(n) {
    min-height: 0;
    padding: 21px;
    background: #fff;
    border: 1px solid #e0eaec;
    border-radius: 5px;
  }

  .about-factory-gallery {
    grid-template-columns: 1fr;
  }

  .about-factory-image {
    height: 218px;
  }

  .about-factory-scope {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    justify-items: start;
    gap: 13px;
  }

  .about-factory-scope strong {
    grid-column: 1 / -1;
  }

  .about-factory-scope span::before {
    display: none;
  }

  .about-process-track {
    grid-template-columns: 1fr;
  }

  .about-closing {
    min-height: 430px;
  }

  .about-closing-shade {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.98));
  }

  .about-closing-inner {
    padding: 62px 0;
  }

  .about-closing .about-page-button {
    margin-right: 0;
    margin-top: 10px;
  }
}