.page-about {
  --about-stagger: 24px;
  background: var(--clr-bg);
}

/* ===== 首屏：框景式品牌档案 ===== */
.page-about .about-hero {
  position: relative;
  padding: 40px 0 80px;
  background: linear-gradient(150deg, #0A2C47 0%, var(--clr-primary) 52%, var(--clr-dark) 100%);
  color: var(--clr-text-light);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 32px;
  right: 32px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(242, 177, 52, 0.4);
  transform: rotate(22deg);
  pointer-events: none;
  z-index: 1;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 22px;
  left: 22px;
  width: 36px;
  height: 36px;
  border-top: 3px solid var(--clr-accent);
  border-left: 3px solid var(--clr-accent);
  border-radius: 2px 0 0 0;
  pointer-events: none;
  z-index: 2;
}

.page-about .about-hero-mountains {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 120px;
  pointer-events: none;
  z-index: 1;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 2;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: 36px;
}

.page-about .about-hero .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
}

.page-about .about-hero .breadcrumb a {
  color: rgba(245, 247, 250, 0.82);
  text-decoration: none;
  transition: color var(--transition);
}

.page-about .about-hero .breadcrumb a:hover {
  color: var(--clr-accent);
}

.page-about .about-hero .breadcrumb li + li::before {
  content: "›";
  margin-right: 6px;
  color: var(--clr-accent);
}

.page-about .about-hero .breadcrumb [aria-current="page"] {
  color: var(--clr-accent);
}

.page-about .about-hero-split {
  display: grid;
  gap: 40px;
}

.page-about .about-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--clr-accent);
}

.page-about .about-hero-kicker::before {
  content: "";
  width: 30px;
  height: 4px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-yellow));
  border-radius: 2px;
}

.page-about .about-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.page-about .about-hero-desc {
  max-width: 58ch;
  margin: 0 0 32px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.88);
}

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

.page-about .about-hero .prayer-strip {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  border-radius: 0;
}

/* 指标卡 */
.page-about .about-hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.page-about .about-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 16px;
  background: rgba(245, 247, 250, 0.07);
  border: 1px solid rgba(245, 247, 250, 0.14);
  border-radius: var(--radius-sm);
}

.page-about .about-metric-num {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--clr-text-light);
}

.page-about .about-metric-label {
  font-size: 12px;
  line-height: 1.4;
  color: rgba(245, 247, 250, 0.72);
}

.page-about .about-metric-blue {
  border-top: 3px solid #7CC7E8;
}

.page-about .about-metric-green {
  border-top: 3px solid var(--clr-green);
}

.page-about .about-metric-dark {
  border-top: 3px solid var(--clr-yellow);
}

.page-about .about-metric-accent {
  border-top: 3px solid var(--clr-accent);
}

.page-about .about-metric-blue .about-metric-num {
  color: #9AD6F0;
}

.page-about .about-metric-green .about-metric-num {
  color: #6FD0A0;
}

.page-about .about-metric-dark .about-metric-num {
  color: var(--clr-yellow);
}

.page-about .about-metric-accent .about-metric-num {
  color: var(--clr-accent);
}

/* ===== 通用区块标签 ===== */
.page-about .about-section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--clr-secondary);
}

.page-about .about-section-tag::before {
  content: "";
  width: 22px;
  height: 4px;
  background: linear-gradient(90deg, var(--clr-green) 0%, var(--clr-yellow) 60%, var(--clr-red) 100%);
  border-radius: 2px;
  flex: 0 0 22px;
}

/* ===== 品牌故事 ===== */
.page-about .about-story {
  padding: 72px 0;
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
}

.page-about .about-story-head {
  margin: 0 0 40px;
}

.page-about .about-story-head h2,
.page-about .about-services-head h2,
.page-about .about-milestones-side h2,
.page-about .about-partners-head h2,
.page-about .about-credentials-main h2 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(23px, 4vw, 32px);
  font-weight: 900;
  line-height: 1.25;
  color: var(--clr-text);
  letter-spacing: -0.01em;
}

.page-about .about-story-lead {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.7;
  color: var(--clr-secondary);
}

.page-about .about-story-grid {
  display: grid;
  gap: 36px;
}

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

.page-about .about-story-figure::after {
  content: "";
  position: absolute;
  inset: 12px -6px -6px 12px;
  border: 2px solid var(--clr-accent);
  border-radius: var(--radius-sm);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-story-figure img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.page-about .about-story-figure figcaption {
  position: relative;
  z-index: 1;
  margin-top: 12px;
  font-size: 13px;
  color: #7A8794;
}

.page-about .about-story-body p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: #41505A;
}

.page-about .about-story-list {
  margin: 24px 0;
  padding: 0;
  list-style: none;
}

.page-about .about-story-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--clr-text);
}

.page-about .about-story-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 7px;
  width: 10px;
  height: 10px;
  background: var(--clr-green);
  transform: rotate(45deg);
}

.page-about .about-story-body .btn {
  margin-top: 4px;
}

/* ===== 核心业务 ===== */
.page-about .about-services {
  padding: 72px 0;
  background: #FFFFFF;
  border-bottom: 1px solid var(--clr-border);
}

.page-about .about-services-head {
  max-width: 640px;
  margin-bottom: 36px;
}

.page-about .about-services-desc {
  margin: 0;
  color: #57656F;
}

.page-about .about-services-grid {
  display: grid;
  gap: 16px;
}

.page-about .about-service-card {
  position: relative;
  padding: 28px 24px 24px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.page-about .about-service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 3px;
  border-radius: 0 0 2px 2px;
}

.page-about .about-service-card:nth-child(1)::before {
  background: var(--clr-primary);
}

.page-about .about-service-card:nth-child(2)::before {
  background: var(--clr-green);
}

.page-about .about-service-card:nth-child(3)::before {
  background: var(--clr-accent);
}

.page-about .about-service-card:nth-child(4)::before {
  background: var(--clr-red);
}

.page-about .about-service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(11, 60, 93, 0.1);
}

.page-about .about-service-num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--clr-accent);
}

.page-about .about-service-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--clr-text);
}

.page-about .about-service-card p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: #57656F;
}

.page-about .about-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--clr-secondary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.page-about .about-card-link::after {
  content: "→";
  transition: transform var(--transition);
}

.page-about .about-card-link:hover {
  border-color: var(--clr-secondary);
}

.page-about .about-card-link:hover::after {
  transform: translateX(4px);
}

/* ===== 发展里程碑 ===== */
.page-about .about-milestones {
  padding: 72px 0;
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
}

.page-about .about-milestones-layout {
  display: grid;
  gap: 48px;
}

.page-about .about-milestones-side > p:not(.about-section-tag) {
  margin: 0 0 28px;
  font-size: 15px;
  line-height: 1.75;
  color: #57656F;
}

.page-about .about-year-rail {
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
  border-left: 2px solid var(--clr-border);
}

.page-about .about-year-rail li {
  position: relative;
  padding: 9px 0 9px 20px;
}

.page-about .about-year-rail li::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 17px;
  width: 12px;
  height: 12px;
  background: var(--clr-bg);
  border: 2px solid var(--clr-secondary);
  border-radius: 50%;
  transition: background var(--transition), border-color var(--transition);
}

.page-about .about-year-rail a {
  font-size: 15px;
  font-weight: 600;
  color: var(--clr-text);
  text-decoration: none;
  transition: color var(--transition);
}

.page-about .about-year-rail a:hover {
  color: var(--clr-accent);
}

.page-about .about-milestone-figure {
  margin: 0;
}

.page-about .about-milestone-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 24px rgba(11, 60, 93, 0.1);
}

.page-about .about-milestone-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: #7A8794;
}

.page-about .about-timeline {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .about-timeline-item {
  position: relative;
  padding: 26px 24px;
  background: #FFFFFF;
  border: 1px solid var(--clr-border);
  border-left: 4px solid var(--clr-primary);
  border-radius: var(--radius-sm);
  scroll-margin-top: 120px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.page-about .about-timeline-item:nth-child(2) {
  border-left-color: var(--clr-green);
}

.page-about .about-timeline-item:nth-child(3) {
  border-left-color: var(--clr-accent);
}

.page-about .about-timeline-item:nth-child(4) {
  border-left-color: var(--clr-red);
}

.page-about .about-timeline-item:nth-child(5) {
  border-left-color: var(--clr-primary);
}

.page-about .about-timeline-item:hover {
  box-shadow: 0 8px 20px rgba(11, 60, 93, 0.08);
}

.page-about .about-timeline-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-about .about-timeline-year {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
  color: var(--clr-primary);
}

.page-about .about-timeline-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
  color: var(--clr-text);
}

.page-about .about-timeline-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #57656F;
}

/* ===== 团队与组织 ===== */
.page-about .about-team {
  padding: 72px 0;
  background: linear-gradient(180deg, rgba(242, 177, 52, 0.06), transparent 120px), var(--clr-dark);
  color: var(--clr-text-light);
  border-bottom: 4px solid var(--clr-accent);
}

.page-about .about-team-head {
  margin-bottom: 36px;
}

.page-about .about-team .about-section-tag {
  color: var(--clr-accent);
}

.page-about .about-team-head h2 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(23px, 4vw, 32px);
  font-weight: 900;
  line-height: 1.3;
  color: var(--clr-text-light);
}

.page-about .about-team-head > p:not(.about-section-tag) {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(245, 247, 250, 0.78);
}

.page-about .about-team-grid {
  display: grid;
  gap: 20px;
}

.page-about .about-team-card {
  padding: 28px 24px;
  background: rgba(245, 247, 250, 0.05);
  border: 1px solid rgba(245, 247, 250, 0.12);
  border-radius: var(--radius-sm);
}

.page-about .about-team-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 900;
  color: #FFFFFF;
  border-radius: var(--radius-sm);
}

.page-about .about-team-icon-editor {
  background: linear-gradient(135deg, var(--clr-secondary), var(--clr-green));
}

.page-about .about-team-icon-tech {
  background: linear-gradient(135deg, var(--clr-primary), #23709E);
}

.page-about .about-team-card h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
  color: var(--clr-text-light);
}

.page-about .about-team-card p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(245, 247, 250, 0.76);
}

.page-about .about-team-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team-card li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245, 247, 250, 0.88);
}

.page-about .about-team-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--clr-accent);
  border-radius: 1px;
}

.page-about .about-team-figure {
  margin: 0;
}

.page-about .about-team-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(245, 247, 250, 0.2);
}

.page-about .about-team-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: rgba(245, 247, 250, 0.64);
}

/* ===== 合作与伙伴 ===== */
.page-about .about-partners {
  padding: 72px 0;
  background: #FFFFFF;
  border-bottom: 1px solid var(--clr-border);
}

.page-about .about-partners-head {
  max-width: 680px;
  margin-bottom: 36px;
}

.page-about .about-partners-head > p:not(.about-section-tag) {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #57656F;
}

.page-about .about-partners-grid {
  display: grid;
  gap: 16px;
}

.page-about .about-partner-item {
  position: relative;
  padding: 28px 24px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: background var(--transition), border-color var(--transition);
}

.page-about .about-partner-item:hover {
  background: #FFFFFF;
  border-color: var(--clr-secondary);
}

.page-about .about-partner-item::after {
  content: "";
  position: absolute;
  right: -24px;
  bottom: -24px;
  width: 80px;
  height: 80px;
  border: 2px solid rgba(29, 110, 110, 0.18);
  border-radius: 4px;
  transform: rotate(24deg);
  pointer-events: none;
}

.page-about .about-partner-index {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--clr-accent);
}

.page-about .about-partner-item h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
  color: var(--clr-text);
}

.page-about .about-partner-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #57656F;
}

/* ===== 资质与认可 ===== */
.page-about .about-credentials {
  padding: 72px 0;
  background: var(--clr-bg);
}

.page-about .about-credentials-card {
  display: grid;
  gap: 32px;
  padding: 40px 28px;
  background: #FFFFFF;
  border: 1px solid var(--clr-border);
  border-left: 4px solid var(--clr-red);
  border-radius: var(--radius-md);
  box-shadow: 0 14px 32px rgba(11, 60, 93, 0.06);
}

.page-about .about-credentials-main > p:not(.about-section-tag) {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.8;
  color: #4A5761;
}

.page-about .about-credentials-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-credentials-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  font-size: 15px;
  color: var(--clr-text);
  border-bottom: 1px dashed var(--clr-border);
}

.page-about .about-credentials-list li:last-child {
  border-bottom: none;
}

.page-about .about-credential-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  font-size: 12px;
  font-weight: 900;
  color: #FFFFFF;
  background: var(--clr-green);
  border-radius: 50%;
}

.page-about .about-credentials-side {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-about .about-credential-seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 152px;
  height: 152px;
  border: 3px solid var(--clr-red);
  border-radius: 50%;
  color: var(--clr-red);
  transform: rotate(-8deg);
  box-shadow: 0 0 0 4px var(--clr-bg), 0 0 0 5px var(--clr-red);
}

.page-about .about-credential-seal span {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.24em;
  margin-right: -0.24em;
}

.page-about .about-credential-seal strong {
  font-family: var(--font-head);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.1;
}

.page-about .about-credential-seal small {
  font-size: 12px;
  letter-spacing: 0.18em;
  margin-right: -0.18em;
}

/* ===== 联系通道 ===== */
.page-about .about-contact {
  padding: 56px 0;
  background: var(--clr-primary);
  color: var(--clr-text-light);
}

.page-about .about-contact-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.page-about .about-contact h2 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 900;
  color: var(--clr-text-light);
}

.page-about .about-contact p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(245, 247, 250, 0.82);
}

/* ===== 媒体查询：平板 ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 56px 0 96px;
  }

  .page-about .about-hero-split {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: 48px;
  }

  .page-about .about-hero-metrics {
    gap: 16px;
  }

  .page-about .about-metric {
    padding: 22px 20px;
  }

  .page-about .about-metric-num {
    font-size: 30px;
  }

  .page-about .about-story-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: 52px;
  }

  .page-about .about-story-figure::after {
    inset: 14px -14px -14px 14px;
  }

  .page-about .about-services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
  }

  .page-about .about-team-figure {
    grid-column: 1 / -1;
  }

  .page-about .about-partners-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-about .about-credentials-card {
    grid-template-columns: 1.5fr 0.5fr;
    align-items: center;
    padding: 48px 40px;
  }

  .page-about .about-contact-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* ===== 媒体查询：桌面 ===== */
@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 64px 0 110px;
  }

  .page-about .about-hero::before {
    width: 220px;
    height: 220px;
  }

  .page-about .about-milestones-layout {
    grid-template-columns: 340px 1fr;
    gap: 64px;
  }

  .page-about .about-milestones-side {
    position: sticky;
    top: 110px;
    align-self: start;
  }

  .page-about .about-timeline-item:nth-child(2) {
    transform: translateX(12px);
  }

  .page-about .about-timeline-item:nth-child(3) {
    transform: translateX(var(--about-stagger));
  }

  .page-about .about-timeline-item:nth-child(4) {
    transform: translateX(12px);
  }

  .page-about .about-team-grid {
    grid-template-columns: 1fr 1fr 1.35fr;
  }

  .page-about .about-team-figure {
    grid-column: auto;
  }
}