/* ===== 品牌档案页 · page-about ===== */
.page-about {
  --about-line: rgba(95, 240, 208, 0.14);
  --about-line-soft: rgba(154, 167, 177, 0.18);
  --about-track: rgba(154, 167, 177, 0.3);
  --about-text: rgba(244, 248, 247, 0.84);
  --about-text-dim: rgba(244, 248, 247, 0.66);

  background: var(--night);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.72;
  overflow-x: hidden;
}

.page-about > * {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumbs {
  padding-top: clamp(20px, 4vw, 34px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--stand-gray);
}

.page-about .about-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-crumbs > li + li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(154, 167, 177, 0.45);
}

.page-about .breadcrumbs__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s ease;
}

.page-about .breadcrumbs__link:hover,
.page-about .breadcrumbs__link:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-about .about-crumbs [aria-current="page"] {
  color: var(--stand-gray);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-top: clamp(34px, 6vw, 68px);
  padding-bottom: clamp(44px, 7vw, 80px);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(95, 240, 208, 0.18) 42%, transparent 100%);
}

.page-about .kicker {
  display: inline-block;
  margin: 0;
  padding-left: 10px;
  border-left: 2px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-about h1 {
  margin: 20px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(31px, 7vw, 56px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-hero__lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.7vw, 18px);
  color: var(--about-text);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .about-hero__facts > li {
  background: var(--ink);
  padding: 16px 16px 18px;
}

.page-about .about-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--cyan-light);
}

.page-about .about-fact__unit {
  margin-left: 3px;
  font-size: 0.52em;
  font-weight: 500;
  color: var(--cyan);
}

.page-about .about-fact__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--stand-gray);
}

.page-about .chapter-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.page-about .chapter-preview a {
  display: inline-block;
  padding: 6px 13px;
  border: 1px solid var(--about-line-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--stand-gray);
  text-decoration: none;
  clip-path: var(--cut-sm);
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.page-about .chapter-preview a:hover,
.page-about .chapter-preview a:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--night);
}

/* ---------- 通用区块 ---------- */
.page-about .about-block {
  padding-block: clamp(46px, 8vw, 88px);
  border-top: 1px solid var(--about-line);
}

.page-about .about-block:first-of-type {
  border-top: 0;
}

.page-about .about-head {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .about-head .section-label {
  display: block;
  font-family: var(--font-editorial);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .about-head h2 {
  margin: 10px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(25px, 4.4vw, 40px);
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-head p {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 16px;
  color: var(--about-text);
}

.page-about .about-body p {
  margin: 0 0 16px;
  max-width: 64ch;
  color: var(--about-text);
}

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

.page-about .about-body strong {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--cyan-light);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.96) contrast(1.04);
}

.page-about .media-frame__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--stand-gray);
}

.page-about .about-figure {
  border-top: 2px solid var(--about-line);
  padding-top: 12px;
}

.page-about .about-figure--origin { border-top-color: rgba(95, 240, 208, 0.5); }
.page-about .about-figure--team { border-top-color: rgba(242, 193, 78, 0.5); margin-top: clamp(26px, 4vw, 40px); }
.page-about .about-figure--season { border-top-color: rgba(255, 107, 53, 0.5); margin-top: clamp(28px, 4vw, 44px); }

/* ---------- 起点 ---------- */
.page-about .about-origin .grid--split {
  gap: clamp(24px, 4vw, 48px);
}

/* ---------- 团队 ---------- */
.page-about .shift-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .shift {
  background: var(--ink);
  padding: 18px 20px;
  border-left: 2px solid var(--cyan);
}

.page-about .shift__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .shift__desc {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--about-text);
}

.page-about .team-notes {
  margin-top: clamp(26px, 4vw, 38px);
}

/* ---------- 赛季时间轴 ---------- */
.page-about .season-track {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .season-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 26px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--about-track) 28%, var(--about-track) 100%);
}

.page-about .season-node {
  position: relative;
  padding: 0 0 32px 36px;
}

.page-about .season-node:last-child {
  padding-bottom: 0;
}

.page-about .season-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 15px;
  height: 15px;
  background: var(--night);
  border: 2px solid var(--gold);
  transform: rotate(45deg);
}

.page-about .season-node:nth-child(2)::before { border-color: var(--cyan); }
.page-about .season-node:nth-child(3)::before { border-color: var(--orange); }
.page-about .season-node:nth-child(4)::before { border-color: var(--state-green); }

.page-about .season-node__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan-light);
}

.page-about .season-node h3 {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 3vw, 24px);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .season-node p {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  color: var(--about-text);
}

.page-about .season-notes {
  margin-top: clamp(24px, 3.5vw, 36px);
}

/* ---------- 三类场景 ---------- */
.page-about .scene-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .scene {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--ink);
  padding: clamp(20px, 3vw, 28px);
  border-left: 3px solid var(--cyan);
}

.page-about .scene--fan { border-left-color: var(--gold); }
.page-about .scene--family { border-left-color: var(--orange); }

.page-about .scene h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 3vw, 23px);
  line-height: 1.24;
  color: var(--paper);
}

.page-about .scene p {
  margin: 0;
  flex: 1 1 auto;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--about-text);
}

.page-about .scene .btn {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 服务地区 ---------- */
.page-about .region-card {
  border: 1px solid var(--about-line);
  background: var(--ink);
  padding: clamp(20px, 3.4vw, 32px);
  clip-path: var(--cut-lg);
}

.page-about .region-card__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
}

.page-about .region-card__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding: 13px 0;
  border-bottom: 1px solid var(--about-line-soft);
}

.page-about .region-card__row:last-child {
  border-bottom: 0;
}

.page-about .region-card__row dt {
  flex: 0 0 auto;
  min-width: 96px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--stand-gray);
}

.page-about .region-card__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan-light);
}

.page-about .region-card__note {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-text-dim);
}

/* ---------- 尾段引导 ---------- */
.page-about .about-cta {
  padding-bottom: clamp(56px, 8vw, 96px);
  border-top: 0;
}

.page-about .cta-strip {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: clamp(22px, 3.4vw, 34px);
  background: linear-gradient(135deg, var(--rail-blue) 0%, var(--ink) 70%);
  border-left: 3px solid var(--orange);
  clip-path: var(--cut-lg);
}

.page-about .cta-strip__text {
  margin: 0;
  max-width: 54ch;
  font-size: 16px;
  color: var(--paper);
}

.page-about .cta-strip__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-about .region-card__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-about .region-card__row:nth-last-child(1):nth-child(odd) {
    border-bottom: 0;
  }

  .page-about .cta-strip {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-about {
    font-size: 17px;
  }

  .page-about .about-origin .grid--split {
    align-items: start;
  }

  .page-about .about-figure--origin {
    position: sticky;
    top: calc(var(--scorebar-h) + 24px);
  }

  .page-about .season-track {
    padding-left: 6px;
  }

  .page-about .season-node {
    padding-left: 44px;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .chapter-preview a {
    transition: none;
  }
}