/* ===== 银河会馆 · 会馆团队 ===== */
.page-about {
  --about-rail: 8.5rem;
  position: relative;
  background: var(--ink-void);
  color: var(--ink-star);
  overflow-x: hidden;
}

.page-about a {
  color: inherit;
}

/* ---------- 首屏横带 ---------- */
.page-about .about-masthead {
  position: relative;
  padding: clamp(2.5rem, 7vw, 5.5rem) 0 clamp(2rem, 4vw, 3.25rem);
  background:
    radial-gradient(110% 70% at 86% -12%, rgba(139, 92, 246, 0.22), transparent 62%),
    radial-gradient(80% 60% at 4% 8%, rgba(34, 211, 238, 0.11), transparent 66%);
}

.page-about .about-masthead::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent,
    rgba(139, 92, 246, 0.75) 22%,
    rgba(185, 194, 212, 0.35) 55%,
    rgba(244, 114, 182, 0.6) 82%,
    transparent);
}

.page-about .breadcrumbs {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-about .masthead-kicker {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-cap);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-masthead h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-head);
  font-size: var(--fs-h1);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--ink-star);
  max-width: 14ch;
}

.page-about .about-lead {
  margin: 0;
  max-width: 38ch;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--ink-silver);
}

.page-about .masthead-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.35rem 1.5rem;
  margin-top: clamp(2rem, 5vw, 3.25rem);
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid var(--line);
}

.page-about .band-stat {
  position: relative;
  padding-left: 0.95rem;
}

.page-about .band-stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.85);
}

.page-about .band-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.1;
  color: var(--ink-star);
}

.page-about .band-stat__label {
  display: block;
  margin-top: 0.4rem;
  font-size: var(--fs-cap);
  letter-spacing: 0.08em;
  color: var(--ink-silver);
}

/* ---------- 章节快速跳转 ---------- */
.page-about .about-jump {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 20, 43, 0.72), rgba(6, 10, 23, 0.4));
}

.page-about .about-jump ul {
  display: flex;
  gap: 1.6rem;
  margin: 0;
  padding: 0.95rem 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-jump ul::-webkit-scrollbar {
  display: none;
}

.page-about .about-jump li {
  flex: 0 0 auto;
}

.page-about .about-jump a {
  display: inline-block;
  padding-bottom: 0.25rem;
  font-family: var(--font-mono);
  font-size: var(--fs-cap);
  letter-spacing: 0.16em;
  color: var(--ink-silver);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

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

/* ---------- 章节通用 ---------- */
.page-about .about-section {
  position: relative;
  padding: clamp(3rem, 7vw, 5.5rem) 0;
}

.page-about .about-section--last {
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}

.page-about .section-head {
  max-width: 44rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-about .rail-index {
  display: block;
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: var(--fs-cap);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--violet);
}

.page-about .about-h2 {
  margin: 0 0 1rem;
  font-family: var(--font-head);
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--ink-star);
}

.page-about .about-p {
  margin: 0 0 1.1rem;
  max-width: 38ch;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--ink-silver);
}

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

.page-about .about-p a {
  color: var(--ink-star);
  text-decoration: none;
  border-bottom: 1px solid rgba(139, 92, 246, 0.7);
  transition: color var(--ease), border-color var(--ease);
}

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

.page-about .beam-divider {
  margin: clamp(0.5rem, 2vw, 1.5rem) 0;
}

/* ---------- 01 起点 ---------- */
.page-about .about-split {
  display: grid;
  gap: 1.5rem;
}

/* ---------- 02 团队 ---------- */
.page-about .team-layout {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
  align-items: start;
}

.page-about .team-bars {
  display: grid;
  gap: 1.15rem;
}

.page-about .team-bar {
  padding: 1.1rem 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 20, 43, 0.94), rgba(6, 10, 23, 0.68));
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.page-about .team-bar:hover,
.page-about .team-bar:focus-within {
  transform: translateX(3px);
  border-color: rgba(34, 211, 238, 0.55);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.12);
}

.page-about .team-bar__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.page-about .team-bar__name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-star);
}

.page-about .team-bar__num {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
}

.page-about .team-bar--violet .team-bar__num { color: var(--violet); }
.page-about .team-bar--cyan .team-bar__num { color: var(--cyan); }
.page-about .team-bar--pink .team-bar__num { color: var(--pink); }

.page-about .team-bar__track {
  position: relative;
  height: 6px;
  margin: 0.75rem 0 0.7rem;
  border-radius: 999px;
  background: rgba(38, 48, 76, 0.55);
  overflow: hidden;
}

.page-about .team-bar__fill {
  display: block;
  height: 100%;
  border-radius: 999px;
}

.page-about .team-bar--violet .team-bar__fill {
  width: 84.6%;
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.55), var(--violet));
}

.page-about .team-bar--cyan .team-bar__fill {
  width: 100%;
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.45), var(--cyan));
}

.page-about .team-bar--pink .team-bar__fill {
  width: 76.9%;
  background: linear-gradient(90deg, rgba(244, 114, 182, 0.45), var(--pink));
}

.page-about .team-bar__desc {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--ink-silver);
}

.page-about .team-figure,
.page-about .partner-figure,
.page-about .timeline-plate {
  margin: 0;
}

.page-about .team-figure img,
.page-about .partner-figure img,
.page-about .timeline-plate img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* ---------- 03 编审流程 ---------- */
.page-about .process-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-about .process-step {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 0 0.75rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--ease);
}

.page-about .process-step:hover {
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.07), transparent 70%);
}

.page-about .process-step__num {
  padding-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-about .process-step__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink-star);
}

.page-about .process-step__text {
  margin: 0;
  max-width: 34ch;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-silver);
}

/* ---------- 04 时间轴 ---------- */
.page-about .timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 2.25rem;
  list-style: none;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg,
    rgba(139, 92, 246, 0.8),
    rgba(34, 211, 238, 0.5) 45%,
    rgba(244, 114, 182, 0.4) 78%,
    rgba(38, 48, 76, 0.15));
}

.page-about .timeline-item {
  position: relative;
  padding-bottom: 2.1rem;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 0.5rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink-void);
  border: 1px solid var(--violet);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.12);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-about .timeline-item:hover::before {
  border-color: var(--cyan);
  box-shadow: 0 0 0 5px rgba(34, 211, 238, 0.18), 0 0 14px rgba(34, 211, 238, 0.5);
}

.page-about .timeline-year {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.05rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1;
  color: var(--ink-star);
}

.page-about .timeline-title {
  margin: 0 0 0.45rem;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-star);
}

.page-about .timeline-text {
  margin: 0;
  max-width: 34ch;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-silver);
}

.page-about .timeline-plate {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  max-width: 22rem;
}

/* ---------- 05 合作 ---------- */
.page-about .partner-layout {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.page-about .partner-points {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.page-about .partner-points li {
  position: relative;
  padding-left: 1.4rem;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-silver);
}

.page-about .partner-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 14px;
  height: 1px;
  background: var(--pink);
}

.page-about .partner-points strong {
  color: var(--ink-star);
  font-weight: 700;
}

/* ---------- 06 服务承诺 ---------- */
.page-about .promise-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .promise-cell {
  position: relative;
  padding: clamp(1.25rem, 3vw, 1.9rem);
  background: var(--ink-orbit);
}

.page-about .promise-cell__num {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-cap);
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-about .promise-cell__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-star);
}

.page-about .promise-cell__text {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--ink-silver);
}

.page-about .about-cta {
  margin-top: clamp(2rem, 5vw, 3rem);
  padding-top: clamp(1.5rem, 4vw, 2.25rem);
  border-top: 1px solid var(--line);
}

.page-about .about-cta__text {
  margin: 0 0 1.25rem;
  max-width: 36ch;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--ink-silver);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin: 0;
}

.page-about .to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: clamp(2rem, 5vw, 3rem);
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-cap);
  letter-spacing: 0.18em;
  color: var(--ink-silver);
  text-decoration: none;
  transition: color var(--ease);
}

.page-about .to-top__bar {
  display: block;
  width: 34px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  transition: width var(--ease);
}

.page-about .to-top:hover,
.page-about .to-top:focus-visible {
  color: var(--cyan);
}

.page-about .to-top:hover .to-top__bar,
.page-about .to-top:focus-visible .to-top__bar {
  width: 56px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .masthead-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-about .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.5rem, 4vw, 3rem);
    border-top: 0;
  }

  .page-about .process-step {
    border-bottom: 0;
    border-top: 1px solid var(--line);
    padding: 1.5rem 0;
  }

  .page-about .process-step:nth-child(-n + 2) {
    border-top-color: rgba(139, 92, 246, 0.5);
  }
}

@media (min-width: 900px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(2rem, 5vw, 4.5rem);
  }

  .page-about .team-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about .partner-layout {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  /* 时间轴交错 */
  .page-about .timeline {
    padding: 0;
  }

  .page-about .timeline::before {
    left: 50%;
    top: 10px;
    bottom: 10px;
  }

  .page-about .timeline-item {
    width: 50%;
    padding-bottom: 2.75rem;
  }

  .page-about .timeline-item:nth-child(odd) {
    padding-right: clamp(2rem, 4vw, 3.5rem);
    text-align: right;
  }

  .page-about .timeline-item:nth-child(odd) .timeline-text {
    margin-left: auto;
  }

  .page-about .timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-left: clamp(2rem, 4vw, 3.5rem);
  }

  .page-about .timeline-item::before {
    top: 0.55rem;
  }

  .page-about .timeline-item:nth-child(odd)::before {
    left: auto;
    right: -5.5px;
  }

  .page-about .timeline-item:nth-child(even)::before {
    left: -5.5px;
  }

  .page-about .timeline-plate {
    margin-left: auto;
    margin-right: 4%;
  }
}

@media (min-width: 760px) {
  .page-about .promise-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-bar,
  .page-about .team-bar__fill,
  .page-about .process-step,
  .page-about .timeline-item::before,
  .page-about .about-jump a,
  .page-about .to-top,
  .page-about .to-top__bar {
    transition: none;
  }
}