/* ===== 品牌故事页（/story/）专属样式 ===== */

.page-about {
  --about-line-color: rgba(10, 31, 68, .1);
  background: var(--c-cream);
  color: var(--c-ink);
}

/* ---------- 01 品牌故事 Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: var(--space-4) 0 var(--space-7);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -22%;
  width: 58%;
  height: 82%;
  background: var(--gradient-navy);
  border-radius: 48% 0 0 48%;
  transform: skewX(-10deg);
  opacity: .08;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--gradient-live);
  opacity: .9;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-5);
}

.page-about .about-hero__tag {
  display: inline-block;
  margin-top: var(--space-3);
}

.page-about .about-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -.5px;
  color: var(--c-primary);
  margin: var(--space-2) 0 var(--space-4);
  max-width: 12em;
}

.page-about .about-hero__lead {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--c-ink);
  line-height: 1.6;
  margin: 0 0 var(--space-4);
  max-width: 36em;
}

.page-about .about-hero__text {
  color: var(--c-gray);
  line-height: 1.7;
  margin: 0 0 var(--space-5);
  max-width: 40em;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

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

.page-about .about-hero__media-wrap {
  position: relative;
  border-radius: var(--radius-hud);
  overflow: hidden;
  box-shadow: var(--shadow-lift);
  background: var(--c-primary-soft);
}

.page-about .about-hero__media-wrap img,
.page-about .about-cert__media img,
.page-about .about-iso__media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-about .about-hero__live {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: rgba(10, 31, 68, .82);
  color: var(--c-cream);
  font-size: var(--text-sm);
  font-weight: 500;
}

.page-about .about-hero__caption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--c-gray);
  text-align: center;
}

.page-about .about-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin: var(--space-7) 0 0;
  background: var(--c-primary);
  border-radius: var(--radius-hud);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-about .about-stats__item {
  background: var(--c-cream);
  margin: 0;
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-about .about-stats__label,
.page-about .about-stats__num {
  margin: 0;
}

.page-about .about-stats__label {
  order: 1;
  font-size: var(--text-sm);
  color: var(--c-gray);
  font-weight: 400;
}

.page-about .about-stats__num {
  font-family: var(--font-num);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1;
  color: var(--c-accent);
}

/* ---------- 02 发展里程碑 ---------- */
.page-about .about-timeline-section {
  padding: var(--space-7) 0;
  background: #FFFFFF;
  border-top: 1px solid var(--about-line-color);
  border-bottom: 1px solid var(--about-line-color);
}

.page-about .story-timeline {
  position: relative;
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
}

.page-about .story-timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 16px;
  width: 3px;
  border-radius: 3px;
  background: var(--gradient-live);
}

.page-about .story-timeline__item {
  position: relative;
  padding-left: 52px;
  margin-bottom: var(--space-4);
}

.page-about .story-timeline__item::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 9px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--c-cream);
  border: 4px solid var(--c-accent);
  box-shadow: 0 0 0 4px rgba(255, 107, 0, .15);
}

.page-about .story-timeline__details {
  background: var(--c-cream);
  border: 1px solid var(--about-line-color);
  border-radius: var(--radius-hud);
  overflow: hidden;
  transition: box-shadow var(--duration-base) var(--ease-out);
}

.page-about .story-timeline__details[open] {
  box-shadow: var(--shadow-lift);
}

.page-about .story-timeline__summary {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: var(--space-4) var(--space-6) var(--space-4) var(--space-5);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-about .story-timeline__summary:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: -3px;
  border-radius: var(--radius-hud);
}

.page-about .story-timeline__year {
  font-family: var(--font-num);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1;
  color: var(--c-accent);
}

.page-about .story-timeline__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--c-ink);
}

.page-about .story-timeline__toggle {
  position: absolute;
  top: 50%;
  right: var(--space-4);
  font-family: var(--font-num);
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1;
  color: var(--c-accent);
  transform: translateY(-50%);
  transition: transform var(--duration-base) var(--ease-out);
}

.page-about .story-timeline__details[open] .story-timeline__toggle {
  transform: translateY(-50%) rotate(45deg);
}

.page-about .story-timeline__detail {
  padding: var(--space-3) var(--space-5) var(--space-4);
  border-top: 1px dashed var(--about-line-color);
  color: var(--c-gray);
}

.page-about .story-timeline__detail p {
  margin: 0;
}

/* ---------- 03 团队与资质 ---------- */
.page-about .about-team-section {
  padding: var(--space-7) 0;
}

.page-about .about-team__grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-about .about-team__card {
  position: relative;
  overflow: hidden;
  padding: var(--space-5);
  border-radius: var(--radius-hud);
  background: var(--gradient-navy);
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}

.page-about .about-team__card::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -24%;
  width: 52%;
  height: 72%;
  opacity: .55;
  pointer-events: none;
  background: repeating-linear-gradient(-8deg, transparent 0 10px, rgba(0, 255, 136, .16) 10px 11px);
}

.page-about .about-team__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.page-about .about-team__num {
  display: block;
  font-family: var(--font-num);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1;
  color: var(--c-accent);
  margin-bottom: var(--space-3);
}

.page-about .about-team__name {
  font-family: var(--font-head);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--c-cream);
  margin: 0 0 var(--space-2);
}

.page-about .about-team__desc {
  position: relative;
  z-index: 1;
  font-size: var(--text-sm);
  color: rgba(255, 248, 231, .78);
  margin: 0;
}

.page-about .about-cert__grid {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-7);
  align-items: center;
}

.page-about .about-cert__media,
.page-about .about-iso__media {
  border-radius: var(--radius-hud);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--c-primary-soft);
}

.page-about .about-cert__content {
  padding: var(--space-5);
  background: var(--c-accent-wash);
  border-radius: var(--radius-hud);
}

.page-about .about-cert__title,
.page-about .about-iso__title {
  font-family: var(--font-head);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--c-primary);
  margin: 0 0 var(--space-3);
}

.page-about .about-cert__text {
  color: var(--c-ink);
  margin: 0 0 var(--space-4);
  line-height: 1.7;
}

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

.page-about .about-cert__list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(10, 31, 68, .08);
  font-weight: 500;
  color: var(--c-primary);
}

.page-about .about-cert__list li:last-child {
  border-bottom: 0;
}

.page-about .about-cert__list .live-dot {
  flex: 0 0 auto;
}

.page-about .about-iso__row {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-5);
  align-items: center;
}

.page-about .about-iso__text {
  padding: var(--space-5);
  border: 1px solid var(--about-line-color);
  border-radius: var(--radius-hud);
  background: var(--c-cream);
}

.page-about .about-iso__desc {
  color: var(--c-gray);
  margin: 0;
  line-height: 1.7;
}

/* ---------- 04 服务理念 ---------- */
.page-about .about-value-section {
  position: relative;
  overflow: hidden;
  margin-top: var(--space-6);
  padding: var(--space-7) 0;
  background: var(--gradient-navy);
  color: var(--c-cream);
}

.page-about .about-value-section::before {
  content: "";
  position: absolute;
  top: -45%;
  left: -12%;
  width: 62%;
  height: 95%;
  opacity: .8;
  pointer-events: none;
  background: repeating-linear-gradient(10deg, transparent 0 16px, rgba(0, 255, 136, .07) 16px 17px);
}

.page-about .about-value-section .container {
  position: relative;
  z-index: 1;
}

.page-about .about-value-section .section-head__title {
  color: var(--c-cream);
}

.page-about .about-value-section .section-head__desc {
  color: rgba(255, 248, 231, .72);
}

.page-about .about-value__grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-about .about-value__item {
  padding: var(--space-5);
  background: var(--c-cream);
  border-radius: var(--radius-hud);
  transition: transform var(--duration-base) var(--ease-out);
}

.page-about .about-value__item:hover {
  transform: translateY(-3px);
}

.page-about .about-value__item .tag {
  display: inline-block;
  margin-bottom: var(--space-3);
}

.page-about .about-value__item p {
  margin: 0;
  font-size: var(--text-base);
  color: var(--c-ink);
}

.page-about .about-value__statement {
  position: relative;
  z-index: 1;
  max-width: 26em;
  margin: var(--space-6) auto 0;
  text-align: center;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: var(--text-xl);
  line-height: 1.5;
  color: var(--c-highlight);
}

.page-about .about-value__actions {
  position: relative;
  z-index: 1;
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

/* ---------- 媒体查询：平板 ---------- */
@media (min-width: 720px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

/* ---------- 媒体查询：桌面 ---------- */
@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: var(--space-6);
    padding-bottom: var(--space-8);
  }

  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-7);
    align-items: center;
    margin-top: var(--space-6);
  }

  .page-about .about-stats {
    margin-top: var(--space-8);
  }

  .page-about .about-cert__grid {
    grid-template-columns: 5fr 7fr;
  }

  .page-about .about-iso__row {
    grid-template-columns: 5fr 7fr;
  }

  .page-about .story-timeline {
    --tl-gap: 40px;
  }

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

  .page-about .story-timeline__item {
    width: calc(50% - var(--tl-gap));
    padding-left: 0;
    margin-bottom: var(--space-5);
  }

  .page-about .story-timeline__item:nth-child(odd) {
    margin-right: calc(50% + var(--tl-gap));
  }

  .page-about .story-timeline__item:nth-child(even) {
    margin-left: calc(50% + var(--tl-gap));
  }

  .page-about .story-timeline__item::before {
    top: 22px;
    left: auto;
    width: 18px;
    height: 18px;
  }

  .page-about .story-timeline__item:nth-child(odd)::before {
    left: calc(100% + var(--tl-gap) - 9px);
  }

  .page-about .story-timeline__item:nth-child(even)::before {
    left: calc(-1 * var(--tl-gap) - 9px);
  }
}