/* ===== 品牌档案页专属样式 ===== */
@keyframes pab-flash {
  0% {
    box-shadow: inset 0 0 0 4px var(--fox-orange);
  }
  100% {
    box-shadow: inset 0 0 0 4px transparent;
  }
}

.page-about {
  overflow-x: hidden;
}

.page-about .pab-orange-word {
  color: var(--fox-orange);
}

/* 封面：品牌报头 + 档案夹标签 */
.page-about .pab-cover {
  background: var(--deep-black);
  color: var(--moon-white);
  padding: 36px 0 52px;
  position: relative;
  overflow: hidden;
}
.page-about .pab-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(115deg, transparent 0 18px, rgba(255, 106, 0, 0.07) 18px 20px, transparent 20px 38px),
    radial-gradient(ellipse at 85% 10%, rgba(230, 57, 70, 0.22), transparent 55%),
    radial-gradient(ellipse at 10% 90%, rgba(0, 180, 216, 0.12), transparent 45%);
}
.page-about .pab-cover__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: stretch;
}
.page-about .pab-cover__tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
}
.page-about .pab-tab {
  display: block;
  flex: 0 0 auto;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--moon-white);
  background: rgba(245, 240, 232, 0.08);
  border: 1px solid rgba(245, 240, 232, 0.16);
  border-bottom: 2px solid var(--fox-orange);
  border-radius: var(--radius-sm);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), transform 0.3s var(--ease);
}
.page-about .pab-tab:hover,
.page-about .pab-tab:focus-visible {
  background: var(--fox-orange);
  color: var(--deep-black);
  transform: translateY(-2px);
  outline: none;
}
.page-about .pab-cover__main {
  background: rgba(26, 26, 26, 0.78);
  border: 1px solid rgba(255, 106, 0, 0.32);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  position: relative;
  z-index: 1;
}
.page-about .pab-cover__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--orange-light);
  margin: 18px 0 8px;
}
.page-about .pab-cover h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(34px, 6vw, 60px);
  line-height: 1.05;
  color: var(--moon-white);
  margin: 0 0 16px;
  max-width: 15em;
}
.page-about .pab-cover__lead {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(248, 249, 250, 0.78);
  margin: 0 0 20px;
  max-width: 36em;
}
.page-about .pab-cover__chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0 0 22px;
}
.page-about .pab-cover__fig {
  margin: 0;
}
.page-about .pab-cover__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(245, 240, 232, 0.12);
}
.page-about .pab-cover__fig figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(248, 249, 250, 0.55);
}

/* 档案索引 */
.page-about .pab-index {
  background: var(--cream);
  padding: 48px 0 56px;
}
.page-about .pab-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-about .pab-index__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 18px;
  background: var(--moon-white);
  border: 1px solid var(--iron-gray);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--deep-black);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.page-about .pab-index__card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, transparent 50%, rgba(230, 57, 70, 0.1) 50%);
  border-radius: 0 var(--radius-md) 0 var(--radius-md);
}
.page-about .pab-index__card:hover,
.page-about .pab-index__card:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--fox-orange);
  outline: none;
}
.page-about .pab-index__num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--flame-red);
}
.page-about .pab-index__title {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.2;
  color: var(--deep-black);
}
.page-about .pab-index__desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--iron-gray);
}

/* 章节通用头 */
.page-about .pab-section-head {
  max-width: 700px;
  margin-bottom: 34px;
}
.page-about .pab-section-head h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
  color: var(--deep-black);
  margin: 10px 0 14px;
}
.page-about .pab-section-head p:last-child {
  font-size: 16px;
  line-height: 1.75;
  color: var(--iron-gray);
  margin: 0;
}
.page-about .pab-section-tag {
  display: inline-block;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--flame-red);
  background: rgba(230, 57, 70, 0.08);
  border-left: 4px solid var(--flame-red);
}
.page-about .pab-section-tag--light {
  color: var(--orange-light);
  background: rgba(255, 179, 128, 0.1);
  border-left-color: var(--fox-orange);
}
.page-about .pab-section-head--light h2 {
  color: var(--moon-white);
}
.page-about .pab-section-head--light p:last-child {
  color: rgba(248, 249, 250, 0.78);
}

/* 01 品牌简介 */
.page-about .pab-brief {
  background:
    radial-gradient(circle at 90% 90%, rgba(255, 106, 0, 0.08), transparent 40%),
    var(--deep-brown-black);
  color: var(--moon-white);
  padding: 58px 0;
  position: relative;
}
.page-about .pab-brief::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--fox-orange) 0 30%, var(--flame-red) 30% 60%, var(--esports-blue) 60% 100%);
}
.page-about .pab-brief__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.page-about .pab-brief__copy h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
  color: var(--moon-white);
  margin: 10px 0 16px;
}
.page-about .pab-brief__copy > p {
  color: rgba(248, 249, 250, 0.78);
  line-height: 1.75;
  margin: 0 0 16px;
  font-size: 15px;
}
.page-about .pab-brief__copy .pab-brief__lead {
  font-size: 17px;
  color: rgba(248, 249, 250, 0.88);
}
.page-about .pab-fact-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 18px;
}
.page-about .pab-fact {
  background: var(--cream);
  border: 1px solid rgba(245, 240, 232, 0.2);
  border-left: 4px solid var(--fox-orange);
  border-radius: var(--radius-sm);
  color: var(--deep-black);
}
.page-about .pab-fact summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  color: var(--deep-black);
}
.page-about .pab-fact summary::-webkit-details-marker {
  display: none;
}
.page-about .pab-fact summary::before {
  content: "+ ";
  font-family: var(--font-mono);
  color: var(--flame-red);
  font-weight: 700;
}
.page-about .pab-fact[open] summary::before {
  content: "– ";
}
.page-about .pab-fact__body {
  padding: 0 16px 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--iron-gray);
}
.page-about .pab-fact__body p {
  margin: 0;
}
.page-about .pab-trust {
  border-left: 4px solid var(--esports-blue);
  background: rgba(0, 180, 216, 0.09);
  padding: 14px 18px;
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(248, 249, 250, 0.8);
}
.page-about .pab-trust p {
  margin: 0;
}
.page-about .pab-brief__aside {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background:
    linear-gradient(135deg, rgba(255, 106, 0, 0.1) 0 25%, transparent 25% 50%, rgba(0, 180, 216, 0.1) 50% 75%, transparent 75%);
  border: 1px dashed var(--orange-light);
  border-radius: var(--radius-lg);
  position: relative;
}
.page-about .pab-filemark {
  position: relative;
  width: 260px;
  min-height: 300px;
  padding: 28px 24px;
  background: var(--cream);
  color: var(--deep-black);
  border-radius: 2px 18px 18px 18px;
  border-top: 18px solid var(--fox-orange);
  box-shadow: var(--shadow-md);
  transform: rotate(-2deg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.page-about .pab-filemark__top {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--iron-gray);
}
.page-about .pab-filemark__logo {
  font-family: var(--font-display);
  font-size: 40px;
  margin: 18px 0 6px;
  color: var(--deep-black);
}
.page-about .pab-filemark p {
  font-size: 14px;
  color: var(--iron-gray);
  margin: 0 0 18px;
}
.page-about .pab-filemark__badge {
  position: absolute;
  bottom: 24px;
  right: 14px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--flame-red);
  border: 1px solid var(--flame-red);
  border-radius: var(--radius-sm);
  transform: rotate(-8deg);
}

/* 02 发展历程 */
.page-about .pab-history {
  background: var(--cream);
  padding: 60px 0;
}
.page-about .pab-history__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-about .pab-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-about .pab-timeline::before {
  content: "";
  position: absolute;
  left: 35px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  background: linear-gradient(180deg, var(--fox-orange), var(--flame-red), var(--esports-blue));
  border-radius: 2px;
}
.page-about .pab-timeline__item {
  position: relative;
  padding-left: 82px;
  margin-bottom: 20px;
}
.page-about .pab-timeline__marker {
  position: absolute;
  left: 0;
  top: 12px;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--moon-white);
  background: var(--deep-black);
  border: 3px solid var(--fox-orange);
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(255, 106, 0, 0.14);
  z-index: 1;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.page-about .pab-timeline__item:hover .pab-timeline__marker {
  background: var(--fox-orange);
  color: var(--deep-black);
  transform: scale(1.06);
  box-shadow: 0 0 0 10px rgba(255, 106, 0, 0.2);
}
.page-about .pab-timeline__card {
  background: var(--moon-white);
  border: 1px solid var(--iron-gray);
  border-radius: var(--radius-md);
  padding: 22px 22px 18px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.page-about .pab-timeline__item:hover .pab-timeline__card {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--fox-orange);
}
.page-about .pab-timeline__card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--deep-black);
  margin: 0 0 8px;
}
.page-about .pab-timeline__card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--iron-gray);
  margin: 0 0 12px;
}
.page-about .pab-timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-about .pab-history__fig {
  margin: 0;
  border: 1px solid var(--iron-gray);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--deep-brown-black);
  align-self: start;
}
.page-about .pab-history__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 03 数据能力 */
.page-about .pab-data {
  background:
    radial-gradient(circle at 85% 15%, rgba(0, 180, 216, 0.12), transparent 42%),
    var(--blue-black);
  color: var(--moon-white);
  padding: 60px 0;
}
.page-about .pab-data__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-top: 34px;
}
.page-about .pab-data__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.page-about .pab-stat {
  background: rgba(248, 249, 250, 0.05);
  border: 1px solid rgba(248, 249, 250, 0.12);
  border-radius: var(--radius-md);
  padding: 22px 16px;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.page-about .pab-stat:hover,
.page-about .pab-stat:focus-within {
  background: rgba(255, 106, 0, 0.12);
  border-color: var(--fox-orange);
  transform: translateY(-3px);
}
.page-about .pab-stat__num {
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1;
  color: var(--fox-orange);
  margin-bottom: 8px;
}
.page-about .pab-stat__num small {
  font-size: 18px;
  color: var(--orange-light);
  margin-left: 2px;
}
.page-about .pab-stat__label {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--moon-white);
}
.page-about .pab-data-note {
  grid-column: 1 / -1;
  margin-top: 6px;
  background: rgba(0, 180, 216, 0.08);
  border: 1px solid rgba(0, 180, 216, 0.3);
  border-radius: var(--radius-sm);
}
.page-about .pab-data-note summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--esports-blue);
}
.page-about .pab-data-note summary::-webkit-details-marker {
  display: none;
}
.page-about .pab-data-note summary::before {
  content: "+ ";
  color: var(--fox-orange);
}
.page-about .pab-data-note[open] summary::before {
  content: "– ";
}
.page-about .pab-data-note__body {
  padding: 0 14px 14px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(248, 249, 250, 0.78);
}
.page-about .pab-data-note__body p {
  margin: 0;
}
.page-about .pab-data__fig {
  margin: 0;
  border: 1px solid rgba(0, 180, 216, 0.3);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(0, 31, 46, 0.6);
}
.page-about .pab-data__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 04 资质与合规 */
.page-about .pab-compliance {
  background: var(--cream);
  padding: 60px 0;
}
.page-about .pab-compliance__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 34px;
}
.page-about .pab-comp-item {
  position: relative;
  overflow: hidden;
  background: var(--moon-white);
  border: 1px solid var(--iron-gray);
  border-radius: var(--radius-md);
  padding: 28px 24px 24px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.page-about .pab-comp-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: var(--esports-blue);
}
.page-about .pab-comp-item:nth-child(2)::before {
  background: var(--fox-orange);
}
.page-about .pab-comp-item:nth-child(3)::before {
  background: var(--flame-red);
}
.page-about .pab-comp-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  background: var(--moon-white);
}
.page-about .pab-comp-item__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--esports-blue);
}
.page-about .pab-comp-item:nth-child(2) .pab-comp-item__idx {
  color: var(--fox-orange);
}
.page-about .pab-comp-item:nth-child(3) .pab-comp-item__idx {
  color: var(--flame-red);
}
.page-about .pab-comp-item h3 {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--deep-black);
  margin: 12px 0 10px;
}
.page-about .pab-comp-item p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--iron-gray);
  margin: 0;
}

/* 05 服务生态 */
.page-about .pab-ecosystem {
  background: var(--moon-white);
  padding: 60px 0;
}
.page-about .pab-eco-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 34px;
}
.page-about .pab-eco-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 22px 30px;
  background: var(--deep-brown-black);
  color: var(--moon-white);
  border: 1px solid rgba(26, 26, 26, 0.4);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.page-about .pab-eco-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0 38px 38px;
  border-color: transparent transparent rgba(255, 106, 0, 0.7) transparent;
}
.page-about .pab-eco-card:hover,
.page-about .pab-eco-card:focus-visible {
  transform: translateY(-4px);
  background: var(--deep-black);
  border-color: var(--fox-orange);
  outline: none;
}
.page-about .pab-eco-card__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--esports-blue);
  margin-bottom: 18px;
}
.page-about .pab-eco-card h3 {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--moon-white);
  margin: 0 0 12px;
}
.page-about .pab-eco-card p {
  flex: 1;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(248, 249, 250, 0.72);
  margin: 0 0 18px;
}
.page-about .pab-eco-card__link {
  font-size: 14px;
  font-weight: 700;
  color: var(--fox-orange);
}
.page-about .pab-eco-card__link span {
  color: var(--cream);
}

/* 联系入口 */
.page-about .pab-outro {
  background:
    repeating-linear-gradient(120deg, transparent 0 26px, rgba(255, 106, 0, 0.05) 26px 28px),
    var(--deep-black);
  color: var(--moon-white);
  padding: 56px 0;
}
.page-about .pab-outro__inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
}
.page-about .pab-outro h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(28px, 4vw, 40px);
  color: var(--moon-white);
  margin: 10px 0 12px;
}
.page-about .pab-outro p:last-child {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(248, 249, 250, 0.76);
  margin: 0;
  max-width: 42em;
}

/* :target 章节标记 */
.page-about .pab-brief:target,
.page-about .pab-history:target,
.page-about .pab-data:target,
.page-about .pab-compliance:target,
.page-about .pab-ecosystem:target {
  animation: pab-flash 1.2s var(--ease);
}

/* 桌面端网格与布局 */
@media (min-width: 960px) {
  .page-about .pab-cover {
    padding: 48px 0 60px;
  }
  .page-about .pab-cover__inner {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 28px;
  }
  .page-about .pab-cover__tabs {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    overflow: visible;
    padding-top: 16px;
  }
  .page-about .pab-tab {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    border-bottom: 1px solid rgba(245, 240, 232, 0.16);
    border-left: 4px solid var(--fox-orange);
  }
  .page-about .pab-tab:hover,
  .page-about .pab-tab:focus-visible {
    transform: translateX(4px);
  }
  .page-about .pab-cover__main {
    padding: 32px 36px 30px;
  }
  .page-about .pab-index__grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 18px;
  }
  .page-about .pab-brief__grid {
    grid-template-columns: 1.6fr 1fr;
    gap: 56px;
    align-items: center;
  }
  .page-about .pab-history__layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 40px;
    align-items: start;
  }
  .page-about .pab-data__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
  }
  .page-about .pab-compliance__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }
  .page-about .pab-eco-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
  .page-about .pab-outro {
    padding: 60px 0;
  }
  .page-about .pab-outro__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
  }
  .page-about .pab-outro__inner > div {
    max-width: 680px;
  }
}

/* 降低动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation: none !important;
    transition: none !important;
  }
}