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

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

/* ===== 框景首屏 ===== */
.page-about .about-hero {
  position: relative;
  padding: 28px 0 64px;
  background: var(--navy);
  color: var(--white);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, rgba(76, 175, 80, 0.2) 0%, transparent 55%);
  clip-path: polygon(0 0, 68% 0, 34% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 32px;
  right: 28px;
  width: 10px;
  height: 10px;
  background: var(--orange);
  transform: rotate(45deg);
  box-shadow: 0 0 0 4px rgba(255, 152, 0, 0.22);
  pointer-events: none;
}

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

.page-about .about-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.68);
}

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

.page-about .about-hero__frame {
  position: relative;
  z-index: 1;
  margin-top: 28px;
  padding: 32px 20px 28px;
  border: 1px solid var(--line-light);
  background: rgba(255, 255, 255, 0.04);
}

.page-about .about-hero__topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.page-about .about-hero .exhibit-label {
  color: var(--kiwi-light);
  border-color: rgba(255, 255, 255, 0.3);
}

.page-about .about-hero__code {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--kiwi-light);
}

.page-about .about-hero__title {
  font-family: var(--font-headline);
  font-size: clamp(30px, 6vw, 50px);
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin: 0 0 16px;
  color: var(--white);
}

.page-about .about-hero__desc {
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.85;
  font-size: 15px;
  max-width: 640px;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 30px;
}

.page-about .about-hero__stat {
  border-left: 2px solid var(--orange);
  padding: 10px 12px 8px;
  background: rgba(255, 255, 255, 0.04);
}

.page-about .about-hero__stat-value {
  display: block;
  font-family: var(--font-data);
  font-size: 26px;
  line-height: 1.2;
  color: var(--kiwi-light);
}

.page-about .about-hero__stat-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.62);
}

.page-about .about-hero__corners {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page-about .about-hero__corner {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--orange);
}

.page-about .about-hero__corner--tl {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-about .about-hero__corner--tr {
  top: -1px;
  right: -1px;
  border-left: 0;
  border-bottom: 0;
}

.page-about .about-hero__corner--bl {
  bottom: -1px;
  left: -1px;
  border-right: 0;
  border-top: 0;
}

.page-about .about-hero__corner--br {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

/* ===== 章节标题组 ===== */
.page-about .about-chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-top: 28px;
  border-top: 3px solid var(--navy);
}

.page-about .about-chapter-head__text {
  min-width: 0;
}

.page-about .about-chapter-head .num-label {
  margin-top: 4px;
}

.page-about .about-chapter-head .section-kicker {
  margin-bottom: 4px;
}

.page-about .about-chapter-head .section-title {
  margin: 0;
}

/* ===== 品牌原点 ===== */
.page-about .about-origin {
  padding: 48px 0 56px;
}

.page-about .about-origin__grid {
  display: grid;
  gap: 30px;
  margin-top: 36px;
  align-items: center;
}

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

.page-about .about-origin__figure .exhibit-label {
  display: inline-flex;
  margin-top: 8px;
}

.page-about .about-origin__img {
  border: 1px solid var(--line);
  background: var(--off-white);
}

.page-about .about-origin__lead {
  font-family: var(--font-headline);
  font-size: 22px;
  line-height: 1.5;
  color: var(--navy);
  margin: 0 0 16px;
}

.page-about .about-origin__text {
  color: var(--grey);
  line-height: 1.85;
  font-size: 15px;
  margin-bottom: 14px;
}

.page-about .about-origin__quote {
  margin: 24px 0;
  padding: 18px 20px;
  border-left: 3px solid var(--orange);
  background: var(--off-white);
}

.page-about .about-origin__quote-mark {
  display: block;
  font-family: var(--font-headline);
  font-size: 24px;
  color: var(--navy);
  margin-bottom: 8px;
}

.page-about .about-origin__quote p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey);
}

.page-about .about-origin__facts {
  margin-top: 20px;
}

.page-about .about-origin__facts .info-row {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-origin__facts .info-row:first-child {
  border-top: 1px solid var(--line);
}

/* ===== 关键里程碑 ===== */
.page-about .about-milestones {
  padding: 48px 0 56px;
  background: var(--off-white);
}

.page-about .about-milestones__wrap {
  display: grid;
  gap: 34px;
  margin-top: 36px;
}

.page-about .about-milestones__timeline {
  position: relative;
  padding-left: 28px;
}

.page-about .about-milestones__timeline::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--kiwi), var(--kiwi-light));
}

.page-about .about-milestone {
  position: relative;
  margin-bottom: 6px;
}

.page-about .about-milestone::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 24px;
  width: 11px;
  height: 11px;
  border: 3px solid var(--kiwi);
  background: var(--off-white);
  transform: rotate(45deg);
}

.page-about .about-milestone__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  cursor: pointer;
  padding: 16px 8px 16px 0;
  list-style: none;
  user-select: none;
}

.page-about .about-milestone__summary::-webkit-details-marker {
  display: none;
}

.page-about .about-milestone__version {
  font-family: var(--font-data);
  font-size: 14px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--white);
  background: var(--navy);
  border-left: 3px solid var(--orange);
  padding: 6px 10px 5px;
}

.page-about .about-milestone__name {
  flex: 1;
  min-width: 200px;
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
}

.page-about .about-milestone__signal {
  font-family: var(--font-data);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--kiwi-dark);
}

.page-about .about-milestone__body {
  margin: 0 0 16px;
  padding: 14px 16px;
  background: var(--white);
  border-left: 2px solid var(--kiwi);
}

.page-about .about-milestone__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey);
}

.page-about .about-milestones__figure {
  margin: 0;
}

.page-about .about-milestones__figure .exhibit-label {
  display: inline-flex;
  margin-top: 8px;
}

.page-about .about-milestones__img {
  border: 1px solid var(--line);
  background: var(--white);
}

/* ===== 我们的方法论 ===== */
.page-about .about-method {
  padding: 48px 0 56px;
}

.page-about .about-method__grid {
  display: grid;
  gap: 30px;
  margin-top: 36px;
}

.page-about .about-method__lead {
  font-family: var(--font-headline);
  font-size: 22px;
  line-height: 1.5;
  color: var(--navy);
  margin: 0 0 16px;
}

.page-about .about-method__intro p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--grey);
}

.page-about .about-method__matrix {
  margin-top: 24px;
  border-top: 2px solid var(--navy);
}

.page-about .about-method__matrix-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.page-about .about-method__matrix-key {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--kiwi-dark);
}

.page-about .about-method__matrix-val {
  color: var(--grey);
  text-align: right;
}

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

.page-about .about-method__map .exhibit-label {
  display: inline-flex;
  margin-top: 8px;
}

.page-about .about-method__map-img {
  border: 1px solid var(--line);
  background: var(--off-white);
}

.page-about .about-method__steps {
  display: grid;
  gap: 16px;
  margin-top: 36px;
}

.page-about .about-method__step {
  position: relative;
  padding: 20px 18px 18px 22px;
  background: var(--off-white);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-method__step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--kiwi);
}

.page-about .about-method__step-no {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--navy);
  background: var(--orange);
  padding: 5px 8px 4px;
}

.page-about .about-method__step h3 {
  margin: 10px 0 8px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--navy);
}

.page-about .about-method__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey);
}

/* ===== 本地化服务 ===== */
.page-about .about-local {
  position: relative;
  padding: 56px 0;
  background: var(--kiwi-dark);
  color: var(--white);
  overflow: hidden;
}

.page-about .about-local::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  height: 100%;
  background: var(--navy);
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.5;
  pointer-events: none;
}

.page-about .about-local__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
}

.page-about .about-local .section-kicker {
  color: var(--kiwi-light);
  margin-bottom: 6px;
}

.page-about .about-local__title {
  font-family: var(--font-headline);
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.3;
  color: var(--white);
  margin: 0 0 14px;
}

.page-about .about-local__desc {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
}

.page-about .about-local__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-local__item {
  display: flex;
  gap: 16px;
  padding: 18px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line-light);
}

.page-about .about-local__index {
  font-family: var(--font-data);
  font-size: 14px;
  line-height: 1.6;
  color: var(--orange);
}

.page-about .about-local__item h3 {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--white);
}

.page-about .about-local__item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.72);
}

/* ===== 底部 CTA ===== */
.page-about .about-cta {
  padding: 56px 0;
  background: var(--off-white);
}

.page-about .about-cta__title {
  font-family: var(--font-headline);
  font-size: 26px;
  line-height: 1.3;
  color: var(--navy);
  margin: 0;
}

.page-about .about-cta__grid {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.page-about .about-cta__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 18px;
  background: var(--white);
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--navy);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-cta__card:hover {
  border-color: var(--kiwi);
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.page-about .about-cta__tag {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-about .about-cta__name {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
}

.page-about .about-cta__arrow {
  font-family: var(--font-data);
  font-size: 18px;
  color: var(--kiwi-dark);
  margin-top: auto;
}

/* ===== 平板及以上 ===== */
@media (min-width: 768px) {
  .page-about .about-hero__frame {
    padding: 40px 36px 32px;
  }

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

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

  .page-about .about-origin__grid {
    gap: 48px;
  }

  .page-about .about-origin__lead {
    font-size: 26px;
  }

  .page-about .about-milestones__wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-method__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }

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

  .page-about .about-local__inner {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 48px;
  }

  .page-about .about-cta__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 960px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-about .about-origin__figure {
    margin-top: 24px;
  }

  .page-about .about-milestones__figure {
    margin-top: 16px;
  }

  .page-about .about-method__lead {
    font-size: 26px;
  }
}