.page-about {
  --ab-gutter: clamp(88px, 20vw, 220px);
  --ab-tl-gap: clamp(20px, 3vw, 48px);
  position: relative;
  overflow-x: clip;
}

.page-about .ab-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* ---------- 首屏框景 ---------- */
.page-about .ab-hero {
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(40px, 7vw, 84px);
}

.page-about .ab-hero__frame {
  position: relative;
  margin-top: clamp(20px, 3vw, 36px);
  padding: clamp(30px, 5vw, 68px) clamp(20px, 4vw, 56px) clamp(28px, 4vw, 52px);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-l);
  background:
    radial-gradient(120% 140% at 10% 0%, rgba(201, 162, 76, 0.14), transparent 55%),
    radial-gradient(100% 120% at 100% 100%, rgba(139, 92, 246, 0.16), transparent 60%),
    var(--glass);
  overflow: hidden;
}

.page-about .ab-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 10px;
  background-image: repeating-linear-gradient(90deg, rgba(201, 162, 76, 0.55) 0 1px, transparent 1px 26px);
  opacity: 0.7;
}

.page-about .ab-hero__frame::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -90px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 214, 240, 0.22), transparent 65%);
  pointer-events: none;
}

.page-about .ab-hero__annot {
  position: absolute;
  top: clamp(26px, 4vw, 54px);
  right: clamp(12px, 2vw, 26px);
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-about .ab-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 5.6vw, 4.4rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  background: linear-gradient(168deg, var(--gold-hi) 0%, var(--gold) 58%, #9d7a2f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 1px 0 rgba(8, 21, 15, 0.5);
  max-width: 18ch;
}

.page-about .ab-hero__lead {
  max-width: 46ch;
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  color: var(--mist);
  font-size: clamp(1rem, 1.6vw, 1.06rem);
  line-height: 1.9;
}

.page-about .ab-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 46px);
  margin: clamp(24px, 3.4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  padding-top: clamp(18px, 2.4vw, 26px);
}

.page-about .ab-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .ab-hero__facts .ab-mono {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--paper);
  line-height: 1;
}

.page-about .ab-hero__facts em {
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

/* ---------- 时间轴 ---------- */
.page-about .ab-atmos {
  margin-bottom: clamp(44px, 6vw, 80px);
}

.page-about .ab-tl-head {
  margin-bottom: clamp(34px, 5vw, 60px);
}

.page-about .ab-timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 calc(var(--ab-gutter) + var(--ab-tl-gap));
  list-style: none;
}

.page-about .ab-timeline::before {
  content: "";
  position: absolute;
  left: var(--ab-gutter);
  top: 10px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--glass-line) 6%, var(--glass-line) 92%, transparent);
}

.page-about .ab-tl-item {
  position: relative;
  padding-bottom: clamp(34px, 5vw, 62px);
}

.page-about .ab-tl-item:last-child {
  padding-bottom: 0;
}

.page-about .ab-tl-item::before {
  content: "";
  position: absolute;
  top: 9px;
  left: calc(-1 * var(--ab-tl-gap));
  width: 13px;
  height: 13px;
  transform: translateX(-50%);
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: var(--ink);
  box-shadow: 0 0 0 0 rgba(201, 162, 76, 0);
  transition: box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-about .ab-tl-item:hover::before,
.page-about .ab-tl-item:focus-within::before {
  border-color: var(--gold-hi);
  box-shadow: 0 0 0 8px rgba(201, 162, 76, 0.16), 0 0 20px rgba(201, 162, 76, 0.5);
}

.page-about .ab-tl-item__year {
  position: absolute;
  top: 2px;
  right: 100%;
  margin-right: var(--ab-tl-gap);
  width: calc(var(--ab-gutter) - 12px);
  text-align: right;
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-about .ab-tl-item__body {
  padding: clamp(16px, 2.2vw, 24px) clamp(16px, 2.4vw, 28px);
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, var(--ink-2), rgba(18, 51, 42, 0.55));
  transition: border-color 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-about .ab-tl-item:hover .ab-tl-item__body {
  border-color: rgba(201, 162, 76, 0.42);
  transform: translateY(-2px);
}

.page-about .ab-tl-item__body h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.12rem, 2vw, 1.42rem);
  color: var(--paper);
  line-height: 1.4;
}

.page-about .ab-tl-item__body p {
  margin: 0;
  color: var(--mist);
  font-size: 0.98rem;
  line-height: 1.85;
}

.page-about .ab-tl-item__body a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 240, 0.4);
}

.page-about .ab-tl-item__body a:hover {
  border-bottom-color: var(--blue);
}

.page-about .ab-tl-item__out {
  margin-top: 12px !important;
  padding-left: 12px;
  border-left: 2px solid var(--violet);
  color: var(--paper) !important;
  font-size: 0.9rem !important;
  opacity: 0.86;
}

/* ---------- 团队数据带 ---------- */
.page-about .ab-band-wrap {
  padding: clamp(40px, 6vw, 72px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 160% at 0% 50%, rgba(29, 79, 62, 0.55), transparent 62%),
    linear-gradient(90deg, var(--ink-deep), var(--ink));
}

.page-about .ab-band__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  color: var(--paper);
  line-height: 1.3;
}

.page-about .ab-band__lead {
  max-width: 58ch;
  margin: 12px 0 0;
  color: var(--mist);
  font-size: 0.96rem;
  line-height: 1.85;
}

.page-about .ab-band {
  display: grid;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .ab-band__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--ink-2);
}

.page-about .ab-band__num {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1;
  color: var(--gold-hi);
  text-shadow: 0 0 18px rgba(201, 162, 76, 0.32);
}

.page-about .ab-band__name {
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  color: var(--paper);
}

.page-about .ab-band__cell p {
  margin: 4px 0 0;
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.75;
}

/* ---------- 玩法研究流程 ---------- */
.page-about .ab-flow {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(28px, 4vw, 52px);
}

.page-about .ab-flow__media {
  align-self: start;
}

.page-about .ab-flow__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-about .ab-flow__steps li {
  position: relative;
  padding: 0 0 clamp(22px, 3vw, 34px) clamp(20px, 3vw, 34px);
  border-left: 1px solid var(--line);
}

.page-about .ab-flow__steps li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .ab-flow__steps li::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 6px;
  width: 10px;
  height: 10px;
  transform: translateX(-50%) rotate(45deg);
  background: var(--ink);
  border: 1px solid var(--gold);
}

.page-about .ab-flow__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--violet);
}

.page-about .ab-flow__steps h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.06rem, 1.9vw, 1.3rem);
  color: var(--paper);
}

.page-about .ab-flow__steps p {
  margin: 0;
  max-width: 46ch;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.85;
}

/* ---------- 更新节奏 ---------- */
.page-about .ab-rhythm {
  padding: clamp(44px, 7vw, 88px) 0;
  background:
    linear-gradient(120deg, rgba(139, 92, 246, 0.16), transparent 42%),
    radial-gradient(80% 140% at 100% 0%, rgba(53, 214, 240, 0.14), transparent 60%),
    var(--ink-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .ab-rhythm__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}

.page-about .ab-rhythm__intro h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1.3;
  color: var(--paper);
}

.page-about .ab-rhythm__intro p {
  max-width: 44ch;
  margin: 16px 0 0;
  color: var(--mist);
  font-size: 0.96rem;
  line-height: 1.9;
}

.page-about .ab-rhythm__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .ab-rhythm__list li {
  display: grid;
  gap: 6px;
  padding: clamp(14px, 2vw, 20px) clamp(16px, 2.2vw, 24px);
  background: rgba(10, 28, 23, 0.86);
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-about .ab-rhythm__k {
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--gold);
}

/* ---------- 反馈闭环 ---------- */
.page-about .ab-qa {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(26px, 4vw, 48px);
}

.page-about .ab-qa__track {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-about .ab-qa__track li {
  position: relative;
  padding: clamp(16px, 2.2vw, 22px) clamp(18px, 2.4vw, 26px);
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-about .ab-qa__track li:nth-child(odd) {
  border-left: 3px solid var(--gold);
}

.page-about .ab-qa__track li:nth-child(even) {
  border-left: 3px solid var(--blue);
}

.page-about .ab-qa__track h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1rem, 1.8vw, 1.22rem);
  color: var(--paper);
}

.page-about .ab-qa__track p {
  margin: 0;
  max-width: 44ch;
  color: var(--mist);
  font-size: 0.93rem;
  line-height: 1.85;
}

.page-about .ab-qa__track a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 240, 0.4);
}

.page-about .ab-qa__media {
  align-self: start;
}

/* ---------- 收束 ---------- */
.page-about .ab-close {
  max-width: 40em;
  margin: 0 auto;
  padding-left: clamp(14px, 2vw, 24px);
  border-left: 3px solid var(--gold);
}

.page-about .ab-close .section-title {
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  margin-top: 10px;
}

.page-about .ab-close__h {
  margin: clamp(24px, 3vw, 34px) 0 8px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.22em;
  color: var(--gold);
  font-weight: 500;
}

.page-about .ab-close p {
  margin: 0;
  color: var(--mist);
  font-size: 0.98rem;
  line-height: 1.9;
}

.page-about .ab-close a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 240, 0.4);
}

.page-about .ab-close__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 3.4vw, 40px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .ab-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .ab-rhythm__list li {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
  .page-about .ab-qa__track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-about .ab-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .ab-flow {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }
  .page-about .ab-rhythm__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
  .page-about .ab-qa {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
  .page-about .ab-qa__media {
    position: sticky;
    top: 110px;
  }
}

@media (max-width: 719px) {
  .page-about {
    --ab-gutter: 26px;
    --ab-tl-gap: 18px;
  }
  .page-about .ab-hero__annot {
    display: none;
  }
  .page-about .ab-hero__frame::after {
    right: -110px;
    bottom: -130px;
  }
  .page-about .ab-timeline {
    padding-left: calc(var(--ab-gutter) + var(--ab-tl-gap));
  }
  .page-about .ab-tl-item__year {
    position: static;
    width: auto;
    margin: 0 0 8px;
    text-align: left;
    font-size: 0.95rem;
    letter-spacing: 0.14em;
  }
  .page-about .ab-tl-item::before {
    top: 5px;
  }
  .page-about .ab-hero__title {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-tl-item__body,
  .page-about .ab-tl-item::before {
    transition: none;
  }
  .page-about .ab-tl-item:hover .ab-tl-item__body {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</｜｜DSML｜｜>