/* ==========================================================
   KAIYUN · 品牌故事 页面专属样式
   页面：/story/ · scope: .page-about
   ========================================================== */
.page-about {
  --about-gold-grad: linear-gradient(135deg, #F2C94C 0%, #FFE37E 100%);
  --about-grid-line: rgba(30, 58, 95, 0.5);
  --about-card-bg: rgba(44, 62, 90, 0.42);
  --about-border-gold: 1px solid rgba(242, 201, 76, 0.3);
  position: relative;
  padding: 0 0 64px;
  background-color: var(--clr-navy);
  color: var(--clr-white);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: clip;
}

.page-about .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

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

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--clr-slate);
}

.page-about .breadcrumb__link {
  color: var(--clr-lake);
  text-decoration: none;
  transition: color var(--ease-fast);
}

.page-about .breadcrumb__link:hover,
.page-about .breadcrumb__link:focus-visible {
  color: var(--clr-gold);
}

.page-about .breadcrumb__sep {
  color: var(--clr-slate);
}

.page-about .breadcrumb__current {
  color: var(--clr-gold);
  font-weight: 700;
}

/* ---------- 页眉 / 杂志报头 ---------- */
.page-about .about-header {
  position: relative;
  margin-top: 8px;
  border-top: 1px solid rgba(242, 201, 76, 0.24);
  border-bottom: 1px solid rgba(30, 58, 95, 0.8);
  background-color: var(--clr-ink);
  background-image:
    linear-gradient(rgba(30, 58, 95, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 95, 0.3) 1px, transparent 1px);
  background-size: 48px 48px;
  padding: 40px 0;
}

.page-about .about-header__inner {
  display: grid;
  gap: 32px;
}

.page-about .about-header__index {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--clr-gold-light);
  text-transform: uppercase;
  border: 1px solid rgba(242, 201, 76, 0.4);
  padding: 4px 12px;
  margin-bottom: 16px;
}

.page-about .about-header h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(40px, 9vw, 72px);
  line-height: 0.96;
  color: var(--clr-gold);
  letter-spacing: -0.04em;
}

.page-about .about-header__lead {
  margin: 16px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(16px, 4vw, 24px);
  font-weight: 700;
  color: var(--clr-white);
}

.page-about .about-header__desc {
  margin: 12px 0 0;
  max-width: 640px;
  color: var(--clr-slate);
  font-size: 15px;
}

.page-about .about-header__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.page-about .about-header__asides {
  display: grid;
  gap: 12px;
}

.page-about .about-stat {
  position: relative;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  background: var(--about-card-bg);
  border-left: 2px solid var(--clr-gold);
  border-radius: 0 6px 6px 0;
}

.page-about .about-stat__value {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 900;
  color: var(--clr-gold-light);
  line-height: 1.1;
}

.page-about .about-stat__value em {
  font-style: normal;
  color: var(--clr-gold);
}

.page-about .about-stat__label {
  font-size: 13px;
  color: var(--clr-slate);
  letter-spacing: 0.06em;
}

/* ---------- 通用章节 ---------- */
.page-about .section {
  padding: 56px 0 24px;
}

.page-about .section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(30, 58, 95, 0.9);
}

.page-about .section-heading__index {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 900;
  color: var(--clr-ink);
  background: var(--clr-gold);
  padding: 2px 10px;
  border-radius: 2px;
  letter-spacing: 0.08em;
}

.page-about .section-heading__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 5vw, 40px);
  color: var(--clr-white);
  letter-spacing: -0.02em;
}

.page-about .section-heading__caption {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-slate);
}

/* ---------- 品牌起源 ---------- */
.page-about .origin-section {
  position: relative;
}

.page-about .origin-section::before {
  content: "GUANGXI · ROOT";
  position: absolute;
  right: 24px;
  top: 40px;
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--clr-grid);
  text-transform: uppercase;
  pointer-events: none;
}

.page-about .origin-layout {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-about .origin-lead {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--clr-gold-light);
  margin: 0 0 12px;
}

.page-about .origin-layout__text p {
  margin: 0 0 12px;
  color: rgba(245, 247, 250, 0.85);
}

.page-about .text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  color: var(--clr-lake);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 176, 219, 0.4);
  padding-bottom: 2px;
  transition: color var(--ease-fast), border-color var(--ease-fast);
}

.page-about .text-link:hover {
  color: var(--clr-gold);
  border-color: rgba(242, 201, 76, 0.6);
}

.page-about .origin-layout__figure {
  position: relative;
  margin: 0;
  background: var(--clr-card);
  border: 1px solid var(--clr-grid);
  border-radius: 8px;
  overflow: hidden;
}

.page-about .origin-layout__figure::after {
  content: "";
  position: absolute;
  right: -10px;
  bottom: -10px;
  width: 100%;
  height: 100%;
  border: 1px solid rgba(242, 201, 76, 0.18);
  border-radius: 8px;
  pointer-events: none;
}

.page-about .origin-layout__figure img {
  width: 100%;
  transition: transform 0.4s ease;
}

.page-about .origin-layout__figure:hover img {
  transform: scale(1.02);
}

/* ---------- 发展历程 ---------- */
.page-about .journey-section {
  background-color: rgba(7, 19, 38, 0.35);
  border-top: 1px solid var(--clr-grid);
  border-bottom: 1px solid var(--clr-grid);
}

.page-about .journey-layout {
  display: grid;
  gap: 32px;
}

.page-about .journey-layout__figure {
  margin: 0;
  background: var(--clr-card);
  border: 1px solid var(--clr-grid);
  border-radius: 8px;
  overflow: hidden;
}

.page-about .journey-layout__figure img {
  width: 100%;
}

.page-about .figure-frame__label {
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--clr-slate);
}

/* ---------- 时间线 ---------- */
.page-about .timeline {
  position: relative;
  padding: 8px 0 8px 32px;
}

.page-about .timeline__rail {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-gold) 0%, var(--clr-grid) 100%);
}

.page-about .timeline__node {
  position: relative;
  margin-bottom: 28px;
  padding: 18px 18px 14px;
  background: var(--about-card-bg);
  border: 1px solid rgba(30, 58, 95, 0.6);
  border-left: 2px solid var(--clr-gold);
  border-radius: 0 8px 8px 8px;
}

.page-about .timeline__dot {
  position: absolute;
  left: -31px;
  top: 24px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--clr-gold);
  box-shadow: 0 0 0 4px rgba(242, 201, 76, 0.2);
}

.page-about .timeline__ver {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--clr-gold-light);
  background: rgba(242, 201, 76, 0.1);
  padding: 2px 8px;
  border-radius: 2px;
}

.page-about .timeline__card h3 {
  margin: 10px 0 6px;
  font-size: 18px;
  color: var(--clr-white);
  font-family: var(--font-heading);
}

.page-about .timeline__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245, 247, 250, 0.75);
}

.page-about .timeline__tag {
  display: inline-block;
  margin-top: 10px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--clr-gold);
  text-transform: uppercase;
}

.page-about .timeline__node--now {
  border-left-color: var(--clr-red);
}

.page-about .timeline__node--now .timeline__ver {
  color: var(--clr-red);
  background: rgba(158, 43, 37, 0.2);
}

/* ---------- 本地化服务 ---------- */
.page-about .local-section {
  position: relative;
  background-image:
    linear-gradient(rgba(30, 58, 95, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 95, 0.22) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-about .local-grid {
  display: grid;
  gap: 14px;
}

.page-about .local-card {
  position: relative;
  padding: 22px 20px;
  background: var(--about-card-bg);
  border: 1px solid rgba(30, 58, 95, 0.7);
  border-radius: 8px;
  transition: border-color var(--ease-fast), background var(--ease-fast);
}

.page-about .local-card:hover {
  border-color: rgba(242, 201, 76, 0.4);
  background: rgba(44, 62, 90, 0.6);
}

.page-about .local-card--highlight {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(242, 201, 76, 0.12) 0%, rgba(44, 62, 90, 0.2) 100%),
    var(--clr-ink);
  border-left: 3px solid var(--clr-gold);
}

.page-about .local-card__num {
  display: block;
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
  color: var(--clr-gold);
  margin-bottom: 6px;
  white-space: nowrap;
}

.page-about .local-card__num em {
  font-style: normal;
  color: var(--clr-gold-light);
  font-size: 24px;
}

.page-about .local-card__idx {
  position: absolute;
  top: 12px;
  right: 14px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--clr-lake);
  font-weight: 700;
}

.page-about .local-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--clr-white);
  font-family: var(--font-heading);
}

.page-about .local-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(245, 247, 250, 0.72);
}

.page-about .local-callout {
  margin: 24px 0 0;
  padding: 14px 18px;
  border-left: 2px solid var(--clr-red);
  background: rgba(158, 43, 37, 0.12);
  border-radius: 0 6px 6px 0;
  font-size: 14px;
  color: rgba(245, 247, 250, 0.8);
}

.page-about .local-callout .text-link {
  margin-top: 0;
  margin-left: 8px;
}

/* ---------- 团队与文化 ---------- */
.page-about .culture-layout {
  display: grid;
  gap: 28px;
}

.page-about .culture-layout__figure {
  margin: 0;
  background: var(--clr-card);
  border: 1px solid var(--clr-grid);
  border-radius: 8px;
  overflow: hidden;
}

.page-about .culture-layout__figure img {
  width: 100%;
}

.page-about .culture-layout__text {
  font-size: 15px;
  color: rgba(245, 247, 250, 0.82);
}

.page-about .culture-layout__text p {
  margin: 0 0 14px;
}

.page-about .culture-details {
  margin-top: 18px;
  border: 1px solid rgba(242, 201, 76, 0.3);
  border-radius: 8px;
  background: rgba(7, 19, 38, 0.5);
}

.page-about .culture-details summary {
  cursor: pointer;
  padding: 14px 40px 14px 16px;
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 14px;
  color: var(--clr-gold-light);
  list-style: none;
  position: relative;
}

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

.page-about .culture-details summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--clr-gold);
  transition: transform var(--ease-fast);
}

.page-about .culture-details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.page-about .culture-details__list {
  margin: 0;
  padding: 0 16px 16px 34px;
}

.page-about .culture-details__list li {
  padding: 4px 0;
  font-size: 14px;
  color: rgba(245, 247, 250, 0.78);
}

.page-about .culture-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 32px;
}

.page-about .culture-metric {
  padding: 18px 16px;
  text-align: center;
  background: var(--about-card-bg);
  border-top: 2px solid var(--clr-gold);
  border-radius: 0 0 6px 6px;
}

.page-about .culture-metric__num {
  display: block;
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 900;
  color: var(--clr-gold-light);
  line-height: 1.1;
}

.page-about .culture-metric__num em {
  font-style: normal;
  font-size: 16px;
  color: var(--clr-gold);
}

.page-about .culture-metric__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--clr-slate);
  letter-spacing: 0.06em;
}

/* ---------- 联系品牌 ---------- */
.page-about .connect-section {
  margin-top: 64px;
  border-top: 1px solid rgba(242, 201, 76, 0.2);
  border-bottom: 1px solid rgba(30, 58, 95, 0.8);
  background:
    linear-gradient(120deg, rgba(242, 201, 76, 0.06) 0%, transparent 55%),
    var(--clr-ink);
}

.page-about .connect-section__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 32px 20px 40px;
}

.page-about .connect-section__index {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--clr-gold);
  margin-bottom: 6px;
}

.page-about .connect-section h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 30px;
  color: var(--clr-gold-light);
}

.page-about .connect-section p {
  margin: 8px 0 0;
  max-width: 460px;
  font-size: 14px;
  color: rgba(245, 247, 250, 0.75);
}

/* ---------- 媒体查询：平板 ---------- */
@media (min-width: 700px) {
  .page-about .about-header__asides {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .page-about .local-card--highlight {
    grid-column: 1 / -1;
  }

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

/* ---------- 媒体查询：桌面 ---------- */
@media (min-width: 960px) {
  .page-about .about-header {
    padding: 56px 0;
  }

  .page-about .about-header__inner {
    grid-template-columns: 1.35fr 0.65fr;
    align-items: center;
    gap: 48px;
  }

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

  .page-about .section-heading__caption {
    margin-left: auto;
  }

  .page-about .origin-layout {
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
  }

  .page-about .journey-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
  }

  .page-about .timeline {
    padding: 8px 0 0;
  }

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

  .page-about .timeline__dot {
    left: auto;
    right: -34px;
    top: 28px;
    width: 12px;
    height: 12px;
  }

  .page-about .timeline__node--start {
    width: calc(50% - 28px);
    margin-right: auto;
    margin-left: 0;
  }

  .page-about .timeline__node--middle {
    width: calc(50% - 28px);
    margin-left: auto;
    margin-right: 0;
  }

  .page-about .timeline__node--middle .timeline__dot {
    right: auto;
    left: -34px;
  }

  .page-about .timeline__node--now {
    width: calc(50% - 28px);
    margin-right: auto;
    margin-left: 0;
  }

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

  .page-about .culture-layout {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
  }

  .page-about .culture-metrics {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .page-about .connect-section__inner {
    padding: 40px 20px 48px;
  }
}