/* =========================================================
   关于页 · 品牌与团队
   ========================================================= */

.page-about {
  --about-gap: clamp(20px, 4vw, 40px);
  --about-track: clamp(48px, 8vw, 96px);
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumbs {
  padding-top: clamp(16px, 3vw, 30px);
}

.page-about .about-crumbs .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-about .about-crumbs .breadcrumb-item {
  display: inline-flex;
  align-items: center;
  color: var(--gray);
}

.page-about .about-crumbs .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  padding: 0 10px;
  color: var(--line-strong);
}

.page-about .about-crumbs .breadcrumb-link {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-about .about-crumbs .breadcrumb-link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-about .about-crumbs .breadcrumb-link[aria-current="page"] {
  color: var(--ink-green);
  font-weight: 700;
}

/* ---------- 首屏框景 ---------- */
.page-about .about-hero {
  padding: clamp(24px, 5vw, 52px) 0 clamp(40px, 7vw, 84px);
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-about .about-hero-copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.012em;
  color: var(--ink-green);
}

.page-about .about-hero-lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.82;
  color: var(--ink);
}

.page-about .about-hero-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.page-about .about-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px 14px 15px;
  background: var(--paper);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-meta-num {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold);
  line-height: 1.2;
}

.page-about .about-meta-label {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--gray);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--paper);
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform var(--ease);
}

.page-about .about-hero-figure:hover img {
  transform: scale(1.015);
}

.page-about .about-figure-caption {
  display: block;
  padding: 9px 12px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-green);
  background: var(--gold-soft);
  border-top: 1px solid var(--line-strong);
}

/* ---------- 区块通用 ---------- */
.page-about .about-band {
  padding: var(--about-track) 0;
}

.page-about .about-head {
  display: grid;
  gap: 12px;
  max-width: 74ch;
  margin-bottom: clamp(22px, 3.5vw, 38px);
}

.page-about .about-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.008em;
  color: var(--ink-green);
}

.page-about .about-head p {
  margin: 0;
  color: var(--gray);
  line-height: 1.8;
}

/* ---------- 服务对象 ---------- */
.page-about .about-audience-box {
  position: relative;
  padding: clamp(24px, 4vw, 46px);
  color: var(--sand);
  background-color: var(--ink-green);
  background-image:
    linear-gradient(var(--line-on-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-on-dark) 1px, transparent 1px);
  background-size: 72px 72px;
  border: 1px solid var(--ink-green-2);
}

.page-about .about-head--dark h2 {
  color: var(--paper);
}

.page-about .about-head--dark p {
  color: rgba(243, 239, 230, 0.72);
}

.page-about .about-audience-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-on-dark);
}

.page-about .about-audience-grid > li {
  padding: 20px 18px 22px;
  background: var(--ink-green);
  transition: background var(--ease);
}

.page-about .about-audience-grid > li:hover {
  background: var(--ink-green-2);
}

.page-about .about-audience-grid h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--gold-soft);
}

.page-about .about-audience-grid p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(243, 239, 230, 0.8);
}

/* ---------- 发展历程 ---------- */
.page-about .about-history-figure {
  margin: 0 0 clamp(22px, 3.5vw, 34px);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-about .about-history-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-tl-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-about .about-tl-nav-link {
  display: inline-block;
  padding: 5px 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-decoration: none;
  color: var(--ink-green);
  background: var(--paper);
  border: 1px solid var(--line);
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-about .about-tl-nav-link:hover {
  color: var(--paper);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-tl-track {
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 0 0 12px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-tl-item {
  position: relative;
  flex: 0 0 min(78vw, 300px);
  scroll-snap-align: start;
  scroll-margin-top: 96px;
  padding: 18px 2px 0;
  border-top: 2px solid var(--line-strong);
  transition: border-color var(--ease);
}

.page-about .about-tl-item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-about .about-tl-item:hover {
  border-top-color: var(--gold);
}

.page-about .about-tl-year {
  display: block;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--gold);
  line-height: 1.2;
}

.page-about .about-tl-item h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-green);
}

.page-about .about-tl-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--gray);
}

/* ---------- 团队矩阵 ---------- */
.page-about .about-team-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.page-about .about-team-figure {
  order: 2;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-about .about-team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-team-matrix {
  order: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.page-about .about-team-cell {
  padding: 20px 18px 24px;
  background: var(--paper);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--ease), background var(--ease);
}

.page-about .about-team-cell:hover,
.page-about .about-team-cell:focus-within {
  background: var(--paper);
  box-shadow: inset 0 0 0 1px var(--gold);
}

.page-about .about-team-count {
  display: block;
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink-green);
  line-height: 1.1;
}

.page-about .about-team-cell h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-green-2);
}

.page-about .about-team-cell p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--gray);
}

/* ---------- 服务覆盖 ---------- */
.page-about .about-reach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-reach-grid > li {
  padding: 22px 20px 26px;
  background: var(--paper);
  transition: background var(--ease);
}

.page-about .about-reach-grid > li:hover {
  background: var(--sand);
}

.page-about .about-reach-num {
  display: block;
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold);
  line-height: 1.05;
}

.page-about .about-reach-grid h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink-green);
}

.page-about .about-reach-grid p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--gray);
}

/* ---------- 行业认可 ---------- */
.page-about .about-honor-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
}

.page-about .about-honor-copy h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.24;
  color: var(--ink-green);
}

.page-about .about-honor-copy p {
  margin: 14px 0 0;
  color: var(--gray);
  line-height: 1.82;
}

.page-about .about-honor-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-honor-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--paper);
  border-left: 3px solid var(--cyan);
  transition: border-color var(--ease), transform var(--ease);
}

.page-about .about-honor-item:hover {
  border-left-color: var(--gold);
  transform: translateY(-2px);
}

.page-about .about-honor-dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-about .about-honor-code {
  flex: 0 0 auto;
  min-width: 52px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-green);
}

.page-about .about-honor-text {
  font-size: 14.5px;
  color: var(--ink);
}

/* ---------- 服务原则与行动入口 ---------- */
.page-about .about-principles-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-principles-list > li {
  padding-top: 16px;
  border-top: 2px solid var(--ink-green);
}

.page-about .about-principle-num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .about-principles-list h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: var(--ink-green);
}

.page-about .about-principles-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .about-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: clamp(28px, 5vw, 48px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-strong);
}

.page-about .about-cta-text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(15px, 2vw, 18px);
  color: var(--ink-green);
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-audience-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-hero-meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-reach-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-team-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-honor-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-about .about-hero-figure {
    align-self: stretch;
  }

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

  .page-about .about-honor-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-about .about-tl-track {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 18px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-tl-item {
    flex: none;
  }

  .page-about .about-team-layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.38fr);
    align-items: stretch;
  }

  .page-about .about-team-figure {
    order: 1;
    height: 100%;
  }

  .page-about .about-team-figure img {
    height: 100%;
    object-fit: cover;
  }

  .page-about .about-team-matrix {
    order: 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-reach-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    animation: none !important;
    transition: none !important;
  }

  .page-about .about-hero-figure:hover img,
  .page-about .about-honor-item:hover {
    transform: none;
  }
}