/* ===== 品牌概况 · 页面专属样式 ===== */
.page-about {
  --about-blue-deep: #08406F;
  --about-blue-bright: #1083C9;
  --about-orange-soft: rgba(255, 122, 41, 0.16);
  --about-line: rgba(10, 91, 158, 0.22);
  --about-white-08: rgba(255, 255, 255, 0.08);
  --about-white-12: rgba(255, 255, 255, 0.12);
  overflow-x: hidden;
  background: var(--clr-white);
}

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

/* ---------- Hero 品牌名片 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    linear-gradient(118deg, rgba(255, 255, 255, 0.08) 0%, transparent 34%),
    linear-gradient(112deg, #0A5B9E 0%, #08406F 70%, #042A47 100%);
  color: var(--clr-white);
  padding: 40px 0 76px;
}

.page-about .about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  transform: skewY(-2deg);
  transform-origin: 0 0;
}

.page-about .about-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 64px;
  background: var(--clr-white);
  clip-path: polygon(0 100%, 0 56%, 100% 0, 100% 100%);
  z-index: 0;
}

.page-about .about-hero__mountains {
  position: absolute;
  right: 0;
  bottom: 40px;
  width: 100%;
  height: 220px;
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: 26px;
}

.page-about .about-hero .breadcrumb a {
  color: rgba(247, 249, 252, 0.75);
  text-decoration: none;
}

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

.page-about .about-hero .breadcrumb__sep {
  color: rgba(247, 249, 252, 0.5);
  margin: 0 8px;
}

.page-about .about-hero .breadcrumb__current {
  color: #fff;
}

.page-about .about-hero__layout {
  display: grid;
  gap: 30px;
  align-items: stretch;
}

.page-about .about-hero__intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-about .about-hero__eyebrow {
  display: inline-block;
  align-self: flex-start;
  margin: 0 0 16px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: rgba(247, 249, 252, 0.92);
}

.page-about .about-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: #fff;
}

.page-about .about-hero__lead {
  max-width: 580px;
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(247, 249, 252, 0.86);
}

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__facts li {
  padding: 7px 12px;
  background: rgba(255, 255, 255, 0.1);
  border-left: 3px solid var(--clr-orange);
  font-size: 0.88rem;
  color: rgba(247, 249, 252, 0.92);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-about .about-hero__visual {
  position: relative;
  min-height: 220px;
}

.page-about .about-hero__img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .about-hero__vtag {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 6px 10px;
  background: rgba(8, 45, 74, 0.72);
  color: #fff;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  line-height: 1.5;
  text-align: center;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-about .about-hero__tag {
  display: inline-block;
  margin-top: 14px;
  padding: 6px 12px;
  background: var(--clr-orange);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

/* ---------- 品牌故事 ---------- */
.page-about .about-story {
  padding: 70px 0 76px;
  background: var(--clr-white);
}

.page-about .about-story__heading {
  margin-bottom: 28px;
}

.page-about .about-story__grid {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
}

.page-about .about-story__body p {
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--clr-ink);
}

.page-about .about-story__body a {
  color: var(--clr-blue);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--clr-orange);
  text-underline-offset: 4px;
}

.page-about .about-story__side {
  position: relative;
  padding: 26px 22px;
  background: var(--clr-light-blue);
  border-left: 4px solid var(--clr-orange);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .about-story__side-num {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(2.6rem, 8vw, 4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--clr-blue);
}

.page-about .about-story__side-label {
  margin: 12px 0 6px;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--clr-slate);
}

.page-about .about-story__side-text {
  margin: 0 0 18px;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--clr-ink);
}

/* ---------- 发展里程碑 ---------- */
.page-about .about-milestones {
  background:
    radial-gradient(circle at 8% 20%, rgba(10, 91, 158, 0.08), transparent 32%),
    linear-gradient(140deg, var(--clr-cloud) 0%, var(--clr-light-blue) 100%);
  padding: 72px 0 84px;
}

.page-about .about-milestones__header {
  max-width: 720px;
}

.page-about .about-timeline {
  position: relative;
  margin: 48px auto 0;
  max-width: 1040px;
}

.page-about .about-timeline::before {
  content: '';
  position: absolute;
  left: 22px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--clr-blue) 0%, var(--clr-orange) 100%);
  opacity: 0.25;
  border-radius: 2px;
}

.page-about .about-timeline__item {
  position: relative;
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.page-about .about-timeline__item:last-child {
  margin-bottom: 0;
}

.page-about .about-timeline__block--node {
  flex: 0 0 44px;
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
}

.page-about .about-timeline__year {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-top: 14px;
  background: var(--clr-blue);
  color: #fff;
  font-family: var(--font-data);
  font-size: 0.86rem;
  font-weight: 700;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  box-shadow: 0 0 0 4px rgba(247, 249, 252, 0.85);
}

.page-about .about-timeline__block--card {
  flex: 1 1 auto;
  min-width: 0;
}

.page-about .about-timeline__block--spacer {
  display: none;
}

.page-about .about-timeline__card.card {
  background: var(--clr-white);
  border: 1px solid rgba(10, 91, 158, 0.08);
  box-shadow: var(--shadow-card);
  padding: 20px 20px 22px;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-about .about-timeline__card h3 {
  margin: 12px 0 8px;
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--clr-ink);
  letter-spacing: -0.01em;
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--clr-slate);
}

.page-about .about-timeline__card a:not(.btn) {
  display: inline-block;
  margin-top: 12px;
  color: var(--clr-blue);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--clr-orange);
  text-underline-offset: 4px;
}

/* ---------- 数字与规模 ---------- */
.page-about .about-numbers {
  position: relative;
  background:
    linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.04) 50%, transparent 100%),
    var(--clr-deep-blue);
  color: var(--clr-white);
  padding: 76px 0 80px;
  overflow: hidden;
}

.page-about .about-numbers::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--clr-orange) 0%, transparent 60%);
}

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

.page-about .about-numbers .section-sub,
.page-about .about-editorial .section-sub {
  color: rgba(247, 249, 252, 0.72);
}

.page-about .about-numbers .section-lead,
.page-about .about-editorial .section-lead {
  color: rgba(247, 249, 252, 0.76);
}

.page-about .about-numbers__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 38px;
}

.page-about .about-numbers__card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 148px;
  padding: 20px 16px 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 4px solid var(--clr-orange);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .about-numbers__card--spotlight {
  background: linear-gradient(140deg, var(--clr-blue) 0%, rgba(255, 255, 255, 0.12) 180%);
  border-left-color: var(--clr-orange);
}

.page-about .about-numbers__label {
  margin-bottom: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: rgba(247, 249, 252, 0.7);
}

.page-about .about-numbers__figure {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-data);
}

.page-about .about-numbers__figure .data-number {
  font-size: clamp(2.4rem, 7vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.page-about .about-numbers__figure .data-number--accent {
  color: var(--clr-orange);
}

.page-about .about-numbers__figure em {
  font-style: normal;
  font-size: 1rem;
  font-weight: 700;
  color: rgba(247, 249, 252, 0.85);
}

.page-about .about-numbers__caption {
  margin: 12px 0 0;
  font-size: 0.84rem;
  line-height: 1.6;
  color: rgba(247, 249, 252, 0.78);
}

.page-about .about-numbers__media {
  display: grid;
  gap: 22px;
  margin-top: 40px;
  align-items: center;
}

.page-about .about-numbers__visual {
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .about-numbers__visual img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.page-about .about-numbers__summary {
  padding: 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 4px solid var(--clr-orange);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-about .about-numbers__summary h3 {
  margin: 0 0 12px;
  font-size: 1.3rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.01em;
}

.page-about .about-numbers__summary p {
  margin: 0 0 18px;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(247, 249, 252, 0.82);
}

/* ---------- 内容与编辑体系 ---------- */
.page-about .about-editorial {
  position: relative;
  background:
    linear-gradient(118deg, rgba(255, 255, 255, 0.08) 0%, transparent 42%),
    var(--clr-blue);
  color: #fff;
  padding: 78px 0 86px;
}

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

.page-about .about-editorial__grid {
  margin-top: 38px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-editorial__card.card {
  height: 100%;
  padding: 24px 20px;
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.04) 100%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #fff;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

.page-about .about-editorial__num {
  display: block;
  margin-bottom: 18px;
  font-family: var(--font-data);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.32);
}

.page-about .about-editorial__card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  font-weight: 900;
  color: #fff;
}

.page-about .about-editorial__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(247, 249, 252, 0.82);
}

.page-about .about-editorial__card p a {
  color: var(--clr-yellow);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-editorial__feature {
  display: grid;
  gap: 24px;
  margin-top: 40px;
  padding: 22px;
  background: rgba(8, 45, 74, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.12);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .about-editorial__img {
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-about .about-editorial__img img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.page-about .about-editorial__desc {
  padding: 6px 2px;
}

.page-about .about-editorial__kicker {
  margin: 0 0 10px;
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  color: var(--clr-yellow);
}

.page-about .about-editorial__desc h3 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.02em;
}

.page-about .about-editorial__desc p:not(.about-editorial__kicker) {
  margin: 0 0 16px;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(247, 249, 252, 0.84);
}

/* ---------- 地域文化基因 ---------- */
.page-about .about-culture {
  background:
    radial-gradient(circle at 86% 8%, rgba(16, 185, 129, 0.08), transparent 30%),
    linear-gradient(180deg, var(--clr-white) 0%, var(--clr-light-blue) 100%);
  padding: 74px 0 84px;
}

.page-about .about-culture__header {
  max-width: 720px;
}

.page-about .about-culture__layout {
  display: grid;
  gap: 30px;
  margin-top: 36px;
  grid-template-columns: 1fr;
}

.page-about .about-culture__palette {
  padding: 24px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--clr-cloud);
  box-shadow: var(--shadow-card);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

.page-about .about-culture__palette h3 {
  margin: 0 0 18px;
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--clr-ink);
}

.page-about .about-culture__swatches {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-culture__swatch {
  display: flex;
  align-items: flex-end;
  height: 76px;
  padding: 8px 10px;
  font-size: 0.76rem;
  font-weight: 700;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.page-about .about-culture__swatch--blue {
  background: var(--clr-blue);
  color: #fff;
}

.page-about .about-culture__swatch--white {
  background: var(--clr-white);
  color: var(--clr-ink);
  border: 1px solid var(--clr-cloud);
}

.page-about .about-culture__swatch--green {
  background: var(--clr-green);
  color: #fff;
}

.page-about .about-culture__swatch--orange {
  background: var(--clr-orange);
  color: #fff;
}

.page-about .about-culture__text h3 {
  margin: 0 0 14px;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--clr-ink);
  letter-spacing: -0.01em;
}

.page-about .about-culture__text p {
  margin: 0 0 16px;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--clr-ink);
}

.page-about .about-culture__links {
  margin-top: 8px;
}

.page-about .about-culture__links a {
  display: inline-block;
  margin: 0 10px 10px 0;
  padding: 8px 14px;
  background: #fff;
  border: 1px solid var(--clr-cloud);
  border-left: 3px solid var(--clr-orange);
  color: var(--clr-ink);
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-about .about-culture__links a:hover {
  border-left-color: var(--clr-blue);
  color: var(--clr-blue);
}

/* ---------- 响应式增强 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero__layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
  }

  .page-about .about-story__grid {
    grid-template-columns: 1.5fr 1fr;
    gap: 40px;
    align-items: start;
  }

  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .about-timeline__block--node {
    flex: 0 0 64px;
  }

  .page-about .about-timeline__item {
    gap: 0;
  }

  .page-about .about-timeline__item:nth-child(odd) .about-timeline__block--node {
    order: 2;
  }

  .page-about .about-timeline__item:nth-child(odd) .about-timeline__block--card {
    order: 1;
  }

  .page-about .about-timeline__item:nth-child(odd) .about-timeline__block--spacer {
    order: 3;
  }

  .page-about .about-timeline__item:nth-child(even) .about-timeline__block--node {
    order: 2;
  }

  .page-about .about-timeline__item:nth-child(even) .about-timeline__block--card {
    order: 3;
  }

  .page-about .about-timeline__item:nth-child(even) .about-timeline__block--spacer {
    order: 1;
  }

  .page-about .about-timeline__block--spacer {
    display: block;
    flex: 1 1 0;
  }

  .page-about .about-timeline__block--card,
  .page-about .about-timeline__item:nth-child(even) .about-timeline__block--card,
  .page-about .about-timeline__item:nth-child(odd) .about-timeline__block--card {
    flex: 1 1 0;
    max-width: 420px;
  }

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

  .page-about .about-numbers__card {
    min-height: 164px;
  }

  .page-about .about-numbers__media {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-about .about-numbers__visual img {
    height: 300px;
  }

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

  .page-about .about-editorial__feature {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 32px;
    align-items: center;
    padding: 30px;
  }

  .page-about .about-editorial__img img {
    height: 340px;
  }

  .page-about .about-culture__layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 36px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero {
    padding: 70px 0 90px;
  }

  .page-about .about-hero__lead {
    font-size: 1.12rem;
  }

  .page-about .about-hero__facts li {
    font-size: 0.95rem;
  }

  .page-about .about-story {
    padding: 92px 0 96px;
  }

  .page-about .about-milestones {
    padding: 96px 0 110px;
  }

  .page-about .about-timeline__card.card {
    padding: 26px 26px 28px;
  }

  .page-about .about-numbers {
    padding: 100px 0 104px;
  }

  .page-about .about-numbers__media {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .page-about .about-editorial {
    padding: 100px 0 108px;
  }

  .page-about .about-culture {
    padding: 96px 0 104px;
  }
}