.page-about {
  --about-hair: 1px solid var(--line-soft);
  --about-figure-shadow: 0 30px 70px -46px rgba(124, 58, 237, 0.95);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

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

/* 面包屑 */
.page-about .about-crumb {
  padding-top: clamp(16px, 3vw, 26px);
}
.page-about .about-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-about .about-crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
}
.page-about .about-crumb a:hover,
.page-about .about-crumb a:focus-visible {
  color: var(--violet-glow);
  border-bottom-color: var(--violet-glow);
}
.page-about .about-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

/* 刊头 */
.page-about .about-masthead {
  position: relative;
  padding: clamp(24px, 4vw, 42px) 0 clamp(34px, 6vw, 70px);
  border-bottom: var(--about-hair);
}
.page-about .about-masthead::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(180deg, rgba(124, 58, 237, 0.07) 0 1px, transparent 1px 5px);
  opacity: 0.7;
}
.page-about .about-masthead__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}
.page-about .about-masthead__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.page-about .about-masthead h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-wrap: balance;
}
.page-about .about-lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--paper);
}
.page-about .about-masthead__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  width: 100%;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border: var(--about-hair);
}
.page-about .about-masthead__meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--panel-2);
}
.page-about .about-meta__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-about .about-meta__v {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

/* 图片框 */
.page-about .about-figure {
  position: relative;
  margin: 0;
  border: var(--about-hair);
  background: var(--panel);
  box-shadow: var(--about-figure-shadow);
  overflow: hidden;
  aspect-ratio: 14 / 9;
}
.page-about .about-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-about .about-figure__label {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 7px 12px;
  background: var(--ink);
  border-top: var(--about-hair);
  border-right: var(--about-hair);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet-glow);
}
.page-about .about-figure--square {
  aspect-ratio: 1 / 1;
}

/* 计分板 */
.page-about .about-board-section {
  padding: clamp(28px, 4vw, 44px) 0 0;
}
.page-about .about-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border: var(--about-hair);
}
.page-about .about-board__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(16px, 2.4vw, 26px);
  background: linear-gradient(160deg, var(--panel), var(--panel-2));
}
.page-about .about-board__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--paper);
}
.page-about .about-board__cell:nth-child(1) .about-board__num {
  color: var(--violet-glow);
}
.page-about .about-board__cell:nth-child(4) .about-board__num {
  color: var(--score);
}
.page-about .about-board__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* 通用标题 */
.page-about .about-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-about .about-h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--paper);
}

/* 时间线 */
.page-about .about-timeline {
  border-top: var(--about-hair);
}
.page-about .about-timeline__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}
.page-about .about-rail {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  align-self: start;
}
.page-about .about-rail__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .about-years {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-years a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-about .about-years a:hover,
.page-about .about-years a:focus-visible {
  border-color: var(--violet-glow);
  color: var(--violet-glow);
}

.page-about .about-track {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-stop {
  position: relative;
  margin-left: 6px;
  padding: 0 0 clamp(24px, 3.4vw, 38px) clamp(24px, 3.2vw, 38px);
  border-left: 1px solid var(--line);
}
.page-about .about-stop:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}
.page-about .about-stop::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.18);
}
.page-about .about-stop--live::before {
  background: var(--score);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.18);
}
.page-about .about-stop__year {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--violet-glow);
}
.page-about .about-stop--live .about-stop__year {
  color: var(--score);
}
.page-about .about-stop p {
  margin: 10px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* 六大玩法 */
.page-about .about-modes {
  border-top: var(--about-hair);
}
.page-about .about-modes__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
}
.page-about .about-modes__note {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .about-modes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-mode {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 28px);
  border: var(--about-hair);
  border-top: 3px solid var(--line);
  background: linear-gradient(155deg, var(--panel), var(--panel-2));
  box-shadow: 0 18px 40px -38px rgba(192, 132, 252, 0.9);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.page-about .about-mode:hover {
  transform: translateY(-2px);
}
.page-about .about-mode--violet {
  border-top-color: var(--violet);
}
.page-about .about-mode--blue {
  border-top-color: var(--arcade-blue);
}
.page-about .about-mode--warn {
  border-top-color: var(--warn);
}
.page-about .about-mode--live {
  border-top-color: var(--score);
}
.page-about .about-mode__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}
.page-about .about-mode p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* 段位 */
.page-about .about-rank {
  border-top: var(--about-hair);
}
.page-about .about-rank__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(22px, 3vw, 34px);
}
.page-about .about-rank__note {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .about-ladder {
  display: grid;
  grid-template-columns: repeat(7, minmax(74px, 1fr));
  gap: 8px;
  align-items: end;
  margin-bottom: clamp(24px, 3.4vw, 38px);
  padding-bottom: 8px;
  overflow-x: auto;
  border-bottom: var(--about-hair);
}
.page-about .about-ladder__item {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: stretch;
  gap: 6px;
}
.page-about .about-ladder__bar {
  height: 60px;
  background: var(--bar, var(--violet));
  border: 1px solid var(--line);
  border-bottom: none;
  border-radius: 2px 2px 0 0;
  box-shadow: inset 0 0 22px rgba(7, 6, 12, 0.55);
}
.page-about .about-ladder__item:nth-child(1) .about-ladder__bar { height: 58px; --bar: #4B2E8C; }
.page-about .about-ladder__item:nth-child(2) .about-ladder__bar { height: 76px; --bar: #5B34A8; }
.page-about .about-ladder__item:nth-child(3) .about-ladder__bar { height: 94px; --bar: #6D3BCB; }
.page-about .about-ladder__item:nth-child(4) .about-ladder__bar { height: 112px; --bar: #7C3AED; }
.page-about .about-ladder__item:nth-child(5) .about-ladder__bar { height: 130px; --bar: #9A5CF0; }
.page-about .about-ladder__item:nth-child(6) .about-ladder__bar { height: 148px; --bar: #B27BF5; }
.page-about .about-ladder__item:nth-child(7) .about-ladder__bar { height: 166px; --bar: #C084FC; }
.page-about .about-ladder__rank {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}
.page-about .about-ladder__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-tabs {
  border: var(--about-hair);
  background: var(--panel-2);
  padding: clamp(14px, 2vw, 20px);
}
.page-about .about-tabs__panel {
  padding-top: 14px;
}
.page-about .about-tabs__panel p {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* 团队 */
.page-about .about-team {
  border-top: var(--about-hair);
}
.page-about .about-team__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}
.page-about .about-team__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.page-about .about-team__note {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
.page-about .about-crew {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  width: 100%;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-crew__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  border: var(--about-hair);
  border-left: 2px solid var(--arcade-blue);
  background: linear-gradient(120deg, var(--panel), var(--panel-2));
  box-shadow: 0 16px 34px -34px rgba(37, 99, 235, 0.9);
}
.page-about .about-crew__k {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--violet-glow);
}
.page-about .about-crew__v {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-about .about-network {
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: var(--about-hair);
  display: grid;
  gap: 18px;
}
.page-about .about-network__head p {
  margin: 10px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}
.page-about .about-regions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-regions li {
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--paper);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-about .about-regions li:hover {
  border-color: var(--violet-glow);
  color: var(--violet-glow);
}

/* 访客体验区 */
.page-about .about-visit {
  border-top: var(--about-hair);
}
.page-about .about-visit__panel {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(20px, 3.4vw, 40px);
  border: 1px solid var(--line);
  color: var(--ink);
}
.page-about .about-visit__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.page-about .about-visit__body .about-h2 {
  color: var(--ink);
}
.page-about .about-visit__body p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: #2A2140;
}
.page-about .about-visit__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  width: 100%;
  margin: 6px 0 0;
  background: #D9D2F0;
  border: 1px solid #D9D2F0;
}
.page-about .about-visit__facts > div {
  padding: 12px 14px;
  background: #FFFFFF;
}
.page-about .about-visit__facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #6B5F8C;
  margin-bottom: 4px;
}
.page-about .about-visit__facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}
.page-about .about-mail {
  font-family: var(--font-mono);
  font-size: 13px;
  word-break: break-all;
}
.page-about .about-visit__cta {
  margin-top: 6px;
}
.page-about .about-visit__figure {
  box-shadow: none;
  border-color: #D9D2F0;
}
.page-about .about-visit__figure .about-figure__label {
  background: var(--ink);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

/* 下一步 */
.page-about .about-next {
  border-top: var(--about-hair);
}
.page-about .about-next__grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 平板及以上 */
@media (min-width: 760px) {
  .page-about .about-masthead__meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-board {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-modes__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-about .about-mode:nth-child(1) { grid-column: span 4; }
  .page-about .about-mode:nth-child(2) { grid-column: span 2; }
  .page-about .about-mode:nth-child(3) { grid-column: span 2; }
  .page-about .about-mode:nth-child(4) { grid-column: span 4; }
  .page-about .about-mode:nth-child(5) { grid-column: span 3; }
  .page-about .about-mode:nth-child(6) { grid-column: span 3; }
  .page-about .about-crew {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-visit__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-next__grid {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* 桌面 */
@media (min-width: 900px) {
  .page-about .about-masthead__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
  .page-about .about-timeline__grid {
    grid-template-columns: 260px minmax(0, 1fr);
  }
  .page-about .about-rail {
    position: sticky;
    top: 96px;
  }
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }
  .page-about .about-visit__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
  .page-about .about-modes__head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
  }
  .page-about .about-modes__note {
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-mode,
  .page-about .about-years a,
  .page-about .about-regions li {
    transition: none;
  }
  .page-about .about-mode:hover {
    transform: none;
  }
}
<<<END>>>