/* ============ 品牌档案 / page-about ============ */

.page-about {
  --cat-action: #FF6B4A;
  --cat-strategy: #5B9DFF;
  --cat-rpg: #B07CFF;
  --cat-casual: #FFC24A;
  --cat-arena: #4DE0B0;
  --cat-sim: #7FD1E8;
  padding-bottom: clamp(48px, 8vw, 112px);
}

/* --- 面包屑 --- */
.page-about .about-crumb {
  padding-top: clamp(16px, 2.6vw, 28px);
}

/* --- 刊头 --- */
.page-about .about-masthead {
  padding: clamp(20px, 3.4vw, 38px) 0 clamp(30px, 5vw, 64px);
}

.page-about .about-masthead-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: end;
}

.page-about h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 62px);
  line-height: 1.07;
  letter-spacing: -0.022em;
  max-width: 19ch;
}

.page-about .about-masthead .lede {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.72;
  color: var(--text-dim);
}

.page-about .about-facts {
  margin: 0;
  border-top: var(--line);
}

.page-about .about-facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: var(--line);
}

.page-about .about-facts dt {
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

/* --- 非对称两栏骨架 --- */
.page-about .split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 56px);
  min-width: 0;
}

.page-about .split-body {
  min-width: 0;
}

.page-about .about-rail {
  border-left: 1px solid var(--rule);
  padding-left: clamp(12px, 1.6vw, 20px);
}

.page-about .about-rail-idx {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--mute);
}

.page-about .about-rail .annotation {
  margin: 0 0 10px;
}

.page-about .about-rail .annotation + .annotation {
  padding-top: 10px;
  border-top: var(--line);
}

/* --- 正文节奏 --- */
.page-about .section-title {
  margin: 0 0 clamp(16px, 2vw, 26px);
  font-family: var(--font-display);
  font-weight: 780;
  font-size: clamp(24px, 3.5vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.016em;
}

.page-about .split-body > p {
  margin: 0 0 clamp(16px, 2vw, 22px);
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.74;
  color: var(--text);
}

.page-about .split-body > p a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

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

/* --- 三级校准流程图 --- */
.page-about .about-flow-figure {
  margin: clamp(24px, 3.4vw, 40px) 0;
  padding: clamp(16px, 2.2vw, 28px);
  border: var(--line);
  background: var(--layer);
}

.page-about .about-flow-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-flow {
  display: block;
  width: 100%;
  min-width: 760px;
  height: auto;
}

.page-about .about-flow .flow-step {
  fill: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1.6px;
}

.page-about .about-flow .flow-title {
  fill: var(--text);
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
}

.page-about .about-flow .flow-note {
  fill: var(--text-dim);
  font-family: var(--font-body);
  font-size: 13px;
}

.page-about .about-flow-figure .media-caption {
  margin-top: 14px;
  padding-top: 12px;
  border-top: var(--line);
}

.page-about .about-lab {
  margin: clamp(26px, 3.6vw, 44px) 0 0;
}

/* --- 分类体系沿革 --- */
.page-about .about-taxonomy {
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-about .about-stages {
  list-style: none;
  margin: 0 0 clamp(28px, 3.6vw, 44px);
  padding: 0;
  border-top: var(--line);
}

.page-about .about-stages > li {
  padding: clamp(16px, 2.2vw, 26px) 0;
  border-bottom: var(--line);
}

.page-about .about-stage-idx {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-about .about-stages h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 1.8vw, 20px);
  font-weight: 700;
  letter-spacing: -0.012em;
}

.page-about .about-stages p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-about .about-hues {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: var(--line);
}

.page-about .about-hues > li {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--ink);
  transition: background-color 200ms ease;
}

.page-about .about-hue--action { --hue: var(--cat-action); }
.page-about .about-hue--strategy { --hue: var(--cat-strategy); }
.page-about .about-hue--rpg { --hue: var(--cat-rpg); }
.page-about .about-hue--casual { --hue: var(--cat-casual); }
.page-about .about-hue--arena { --hue: var(--cat-arena); }
.page-about .about-hue--sim { --hue: var(--cat-sim); }

.page-about .about-hue-swatch {
  display: block;
  width: 10px;
  height: 26px;
  background: var(--hue, var(--cyan));
  transition: width 200ms ease;
}

.page-about .about-hues > li:hover,
.page-about .about-hues > li:focus-within {
  background: var(--layer);
}

.page-about .about-hues > li:hover .about-hue-swatch {
  width: 16px;
}

.page-about .about-hue-name {
  font-size: 14px;
  color: var(--text);
}

.page-about .about-hue-count {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  transition: color 200ms ease;
}

.page-about .about-hues > li:hover .about-hue-count {
  color: var(--cyan);
}

.page-about .about-hue-total {
  margin: 12px 0 clamp(26px, 3.4vw, 40px);
  font-size: 13px;
  color: var(--text-dim);
}

.page-about .about-hue-total .num {
  color: var(--cyan-soft);
}

.page-about .about-hue-figure {
  margin: 0;
}

/* --- 团队与分工 --- */
.page-about .about-team-strip {
  margin: 0 0 clamp(32px, 5vw, 68px);
}

.page-about .about-roles {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: var(--line);
}

.page-about .about-roles > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  padding: clamp(16px, 2.2vw, 24px) 0;
  border-bottom: var(--line);
}

.page-about .about-role-idx {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-about .about-roles h3 {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-about .about-roles p {
  grid-column: 1 / -1;
  margin: 8px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-dim);
}

/* --- 数据口径 --- */
.page-about .about-table caption {
  caption-side: top;
  text-align: left;
  padding-bottom: 12px;
  font-size: 13px;
  color: var(--text-dim);
}

.page-about .about-table th[scope="row"] {
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}

/* --- 长期维护 --- */
.page-about .about-legend {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-legend > li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: var(--line);
}

.page-about .about-legend > li > span:last-child {
  font-size: 14px;
  line-height: 1.66;
  color: var(--text-dim);
}

.page-about .about-next {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-top: clamp(24px, 3.2vw, 38px);
  padding-top: clamp(20px, 2.8vw, 30px);
  border-top: var(--line);
}

.page-about .about-next .annotation {
  margin: 0 auto 0 0;
}

/* --- 响应式 --- */
@media (min-width: 720px) {
  .page-about .split-body > p {
    font-size: 17px;
  }

  .page-about .about-roles > li {
    grid-template-columns: 56px 200px minmax(0, 1fr);
    gap: 0 24px;
    align-items: baseline;
  }

  .page-about .about-role-idx {
    padding-top: 0;
  }

  .page-about .about-roles h3 {
    grid-column: 2;
  }

  .page-about .about-roles p {
    grid-column: 3;
    margin-top: 0;
  }

  .page-about .about-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 32px;
  }
}

@media (min-width: 920px) {
  .page-about .about-masthead-grid {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 286px);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .split {
    grid-template-columns: minmax(150px, 224px) minmax(0, 1fr);
  }

  .page-about .about-rail-idx {
    font-size: clamp(34px, 3vw, 46px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hues > li,
  .page-about .about-hue-swatch,
  .page-about .about-hue-count {
    transition: none;
  }
}