.page-about {
  --about-rotate: -1.2deg;
}

.page-about .about-hero {
  padding-block: var(--s-4) var(--s-5);
}

.page-about .breadcrumb {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-about .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
}

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

.page-about .hero-grid {
  display: grid;
  gap: var(--s-4);
  margin-top: var(--s-3);
}

.page-about .hero-copy h1 {
  margin: var(--s-2) 0 var(--s-3);
  font-size: clamp(34px, 6.2vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}

.page-about .hero-lead {
  max-width: 48ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-4);
  margin: var(--s-4) 0;
  padding-top: var(--s-3);
  border-top: 1px solid var(--line-soft);
}

.page-about .stat {
  min-width: 84px;
}

.page-about .stat .num {
  display: block;
  font-family: var(--font-num);
  font-size: 40px;
  line-height: 1;
  color: var(--orange);
}

.page-about .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2) var(--s-3);
}

.page-about .text-link {
  color: var(--orange-soft);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 178, 122, 0.4);
  padding-bottom: 2px;
}

.page-about .text-link:hover,
.page-about .text-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-about .figure {
  margin: 0;
  overflow: hidden;
}

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

.page-about .hero-figure {
  transform: rotate(var(--about-rotate));
}

.page-about .hero-figure .figure__caption {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
  padding-top: var(--s-1);
}

.page-about .section {
  padding-block: var(--s-5);
}

.page-about .section-head {
  display: grid;
  gap: var(--s-2);
  margin-bottom: var(--s-4);
}

.page-about .section-head h2 {
  margin: var(--s-1) 0 0;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}

.page-about .section-head__meta {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 52ch;
}

/* ---------- 时间线 ---------- */
.page-about .trace-grid {
  display: grid;
  gap: var(--s-4);
}

.page-about .trace-rail .label {
  color: var(--slate);
}

.page-about .milestones {
  position: relative;
  list-style: none;
  margin: var(--s-3) 0 0;
  padding: 0 0 0 26px;
}

.page-about .milestones::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime) 0%, var(--lime) 60%, var(--orange) 100%);
  opacity: 0.85;
}

.page-about .milestone {
  position: relative;
  padding-bottom: var(--s-3);
}

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

.page-about .milestone-dot {
  position: absolute;
  left: -27px;
  top: 3px;
}

.page-about .milestone-dot circle {
  fill: var(--lime);
}

.page-about .milestone.is-latest .milestone-dot circle {
  fill: var(--orange);
}

.page-about .milestone-year {
  display: block;
  font-family: var(--font-num);
  font-size: 24px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-about .milestone.is-latest .milestone-year {
  color: var(--orange);
}

.page-about .milestone-text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
}

.page-about .trace-body h2 {
  margin: 0 0 var(--s-3);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}

.page-about .trace-body p {
  margin: 0 0 var(--s-3);
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 56ch;
}

.page-about .scale-row {
  display: grid;
  gap: var(--s-3);
  margin: var(--s-4) 0;
  padding: var(--s-3) 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .scale-item {
  display: flex;
  align-items: baseline;
  gap: var(--s-2);
}

.page-about .scale-item .num {
  font-family: var(--font-num);
  font-size: 40px;
  line-height: 1;
  color: var(--orange);
  min-width: 3ch;
}

.page-about .scale-label {
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-about .trace-foot {
  font-size: 15px;
  color: var(--slate);
}

.page-about .trace-foot a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 255, 60, 0.45);
}

/* ---------- 团队角色 ---------- */
.page-about .roles-band {
  background: var(--mist);
  color: var(--ink-800);
  border-radius: var(--r-lg);
  padding: var(--s-4) var(--s-3);
}

.page-about .label--dark {
  color: var(--slate);
}

.page-about .roles-band h2 {
  margin: var(--s-1) 0 var(--s-2);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--ink-900);
}

.page-about .roles-lead {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.75;
  color: #3b4d67;
}

.page-about .roles-grid {
  display: grid;
  gap: var(--s-3);
  margin-top: var(--s-4);
}

.page-about .role-card {
  background: var(--white);
  border: 1px solid rgba(111, 129, 153, 0.28);
  border-radius: var(--r-card);
  padding: var(--s-3);
  box-shadow: 0 10px 24px rgba(11, 27, 51, 0.08);
}

.page-about .role-card:nth-child(1) {
  transform: rotate(-0.8deg);
}

.page-about .role-card:nth-child(4) {
  transform: rotate(0.9deg);
}

.page-about .role-card h3 {
  margin: var(--s-2) 0 var(--s-1);
  font-size: 19px;
  line-height: 1.35;
  font-weight: 900;
  color: var(--ink-900);
}

.page-about .role-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: #3b4d67;
}

.page-about .role-tasks {
  list-style: none;
  margin: var(--s-2) 0 0;
  padding: var(--s-2) 0 0;
  border-top: 1px dashed rgba(111, 129, 153, 0.4);
  display: grid;
  gap: 6px;
}

.page-about .role-tasks li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-800);
}

.page-about .role-tasks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
}

/* ---------- 云南本地入口 ---------- */
.page-about .yunnan-grid {
  display: grid;
  gap: var(--s-4);
  align-items: center;
}

.page-about .yunnan-figure {
  transform: rotate(1.1deg);
}

.page-about .yunnan-copy h2 {
  margin: var(--s-1) 0 var(--s-3);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}

.page-about .yunnan-copy p {
  margin: 0 0 var(--s-3);
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 54ch;
}

.page-about .yunnan-points {
  list-style: none;
  margin: var(--s-3) 0 0;
  padding: 0;
  display: grid;
  gap: var(--s-2);
}

.page-about .yunnan-points li {
  position: relative;
  padding-left: var(--s-3);
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .yunnan-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: var(--lime);
}

.page-about .yunnan-points strong {
  color: var(--white);
  font-weight: 700;
  margin-right: 4px;
}

/* ---------- 赛季时间表 ---------- */
.page-about .phase-bar {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}

.page-about .phase {
  position: relative;
  overflow: hidden;
  background: var(--ink-850);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: var(--s-4) var(--s-3) var(--s-3);
}

.page-about .phase::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--volt);
}

.page-about .phase--peak::before {
  background: var(--orange);
}

.page-about .phase--break::before {
  background: var(--lime);
}

.page-about .phase-weeks {
  display: block;
  font-family: var(--font-num);
  font-size: 24px;
  line-height: 1;
  color: var(--orange-soft);
}

.page-about .phase h3 {
  margin: var(--s-2) 0 var(--s-1);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .phase p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-about .calendar-body {
  display: grid;
  gap: var(--s-4);
  margin-top: var(--s-4);
}

.page-about .calendar-figure {
  max-width: 520px;
  margin-inline: auto;
  transform: rotate(-1deg);
}

.page-about .calendar-figure .figure__caption {
  font-size: 12px;
  color: var(--slate);
  padding-top: var(--s-1);
}

.page-about .calendar-notes h3 {
  margin: 0 0 var(--s-3);
  font-size: 20px;
  font-weight: 900;
  color: var(--white);
}

.page-about .note-list {
  margin: 0;
  display: grid;
  gap: var(--s-2);
}

.page-about .note-list dt {
  font-family: var(--font-num);
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--lime);
  line-height: 1.3;
}

.page-about .note-list dd {
  margin: 0 0 var(--s-2);
  padding-bottom: var(--s-2);
  border-bottom: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .note-list dd:last-child {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}

/* ---------- 准确度 ---------- */
.page-about .assure-grid {
  display: grid;
  gap: var(--s-3);
}

.page-about .assure-card {
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: var(--s-4) var(--s-3) var(--s-3);
  background: linear-gradient(155deg, rgba(44, 107, 255, 0.18) 0%, rgba(11, 27, 51, 0) 62%);
}

.page-about .assure-card .num {
  display: block;
  font-family: var(--font-num);
  font-size: 56px;
  line-height: 1;
  color: var(--lime);
}

.page-about .assure-card h3 {
  margin: var(--s-2) 0 var(--s-1);
  font-size: 18px;
  font-weight: 900;
  color: var(--white);
}

.page-about .assure-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 合作伙伴 ---------- */
.page-about .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .partner {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--s-3);
  padding: var(--s-3) 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .partner:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-about .partner-index {
  font-family: var(--font-num);
  font-size: 28px;
  line-height: 1;
  color: var(--orange);
}

.page-about .partner h3 {
  margin: 0 0 var(--s-1);
  font-size: 19px;
  font-weight: 900;
  color: var(--white);
}

.page-about .partner p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 结尾行动区 ---------- */
.page-about .start-cta {
  display: grid;
  gap: var(--s-4);
  padding: var(--s-5) var(--s-4);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--ink-800) 0%, var(--ink-900) 72%);
}

.page-about .start-copy h2 {
  margin: var(--s-1) 0 var(--s-2);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}

.page-about .start-copy p {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .start-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--s-2);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .scale-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .scale-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-about .roles-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--s-4);
  }

  .page-about .assure-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .start-actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--s-2) var(--s-3);
  }
}

@media (min-width: 760px) {
  .page-about .phase-bar {
    flex-direction: row;
    gap: var(--s-2);
    align-items: stretch;
  }

  .page-about .phase {
    flex: 1 1 0;
  }

  .page-about .phase--start {
    flex-grow: 3;
  }

  .page-about .phase--peak {
    flex-grow: 8;
  }

  .page-about .phase--break {
    flex-grow: 5;
  }

  .page-about .roles-band {
    padding: var(--s-5) var(--s-4);
  }
}

@media (min-width: 900px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s-5);
    align-items: center;
  }

  .page-about .yunnan-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--s-5);
  }

  .page-about .calendar-body {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: var(--s-5);
    align-items: center;
  }

  .page-about .section-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: var(--s-5);
  }

  .page-about .start-cta {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: var(--s-5);
  }
}

@media (min-width: 960px) {
  .page-about .trace-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: var(--s-5);
    align-items: start;
  }

  .page-about .trace-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1080px) {
  .page-about .assure-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .hero-figure,
  .page-about .yunnan-figure,
  .page-about .calendar-figure,
  .page-about .role-card {
    transform: none;
  }
}