/* ============ PG竞技 | 品牌介绍页专属样式 ============ */
.page-about {
  background: var(--color-bg);
  overflow-x: hidden;
}

/* ---------- 首屏：品牌坐标 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-height) + 64px) 20px 72px;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(1100px 480px at 88% -12%, rgba(0, 212, 170, 0.12), transparent 60%),
    radial-gradient(820px 420px at -8% 18%, rgba(255, 122, 0, 0.12), transparent 55%),
    linear-gradient(158deg, #1C1E3A 0%, #0F1025 66%);
}
.page-about .about-hero__container {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
}
.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 44px;
  font-family: var(--font-headline);
  font-size: 14px;
  color: var(--color-text-secondary);
}
.page-about .breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-about .breadcrumb a:hover {
  color: var(--color-accent);
}
.page-about .breadcrumb__sep {
  color: var(--color-border);
}
.page-about .about-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  font-family: var(--font-headline);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.page-about .about-hero__eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--color-accent);
  transform: skewX(-30deg);
}
.page-about .about-hero__title {
  max-width: 920px;
  margin: 0 0 22px;
  font-family: var(--font-headline);
  font-size: 36px;
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.page-about .about-hero__title em {
  font-style: normal;
  color: var(--color-highlight);
  box-shadow: inset 0 -14px 0 rgba(255, 122, 0, 0.22);
}
.page-about .about-hero__lead {
  max-width: 740px;
  margin: 0 0 44px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}
.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  max-width: 780px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-border);
}
.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 26px 20px;
  background: rgba(28, 30, 58, 0.94);
}
.page-about .about-hero__num {
  font-family: var(--font-headline);
  font-size: 34px;
  font-weight: 900;
  line-height: 1;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}
.page-about .about-hero__num small {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-secondary);
}
.page-about .about-hero__num--accent {
  color: var(--color-accent);
}
.page-about .about-hero__label {
  font-family: var(--font-headline);
  font-size: 13px;
  color: var(--color-text-secondary);
}
.page-about .about-hero__index {
  display: none;
}

/* ---------- 章节通用骨架 ---------- */
.page-about .about-section {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 92px 20px 0;
}
.page-about .about-section__head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 40px;
}
.page-about .about-section__num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 34px;
  margin-top: 2px;
  padding: 0 12px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-soft));
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--color-bg);
  transform: skewX(-12deg);
}
.page-about .about-section__heading {
  border-left: 3px solid var(--color-accent);
  padding-left: 18px;
}
.page-about .about-section__heading h2 {
  margin: 0 0 8px;
  font-family: var(--font-headline);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.page-about .about-section__desc {
  margin: 0;
  font-family: var(--font-headline);
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ---------- 01 我们从何而来 ---------- */
.page-about .about-origin__layout {
  display: grid;
  gap: 32px;
}
.page-about .about-origin__lead {
  margin: 0 0 28px;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  color: var(--color-text);
}
.page-about .about-origin__quote {
  margin: 0 0 28px;
  padding: 22px 22px 22px 26px;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(135deg, rgba(255, 122, 0, 0.12), rgba(255, 122, 0, 0.02));
}
.page-about .about-origin__quote p {
  margin: 0;
  font-family: var(--font-headline);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.65;
  color: var(--color-highlight);
}
.page-about .about-origin__text {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}
.page-about .about-origin__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}
.page-about .about-origin__meta-item {
  flex: 1 1 116px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.page-about .about-origin__meta-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}
.page-about .about-origin__meta-num {
  font-family: var(--font-headline);
  font-size: 30px;
  font-weight: 900;
  line-height: 1;
  color: var(--color-highlight);
}
.page-about .about-origin__meta-num small {
  font-size: 16px;
}
.page-about .about-origin__meta-label {
  font-family: var(--font-headline);
  font-size: 13px;
  color: var(--color-text-secondary);
}
.page-about .about-origin__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.page-about .about-origin__figure img {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-origin__figure figcaption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  max-width: calc(100% - 28px);
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(15, 16, 37, 0.88);
  font-family: var(--font-headline);
  font-size: 12px;
  color: var(--color-text);
}
.page-about .about-origin__timeline {
  position: relative;
  margin: 52px 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-origin__timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--color-accent), rgba(255, 122, 0, 0.08));
}
.page-about .about-origin__tl-item {
  position: relative;
  padding: 0 0 28px 44px;
}
.page-about .about-origin__tl-item:last-child {
  padding-bottom: 0;
}
.page-about .about-origin__tl-dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  background: var(--color-bg-card);
  box-shadow: 0 0 0 5px rgba(255, 122, 0, 0.12);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.page-about .about-origin__tl-item:hover .about-origin__tl-dot {
  background: var(--color-accent);
  box-shadow: 0 0 0 8px rgba(255, 122, 0, 0.18);
}
.page-about .about-origin__tl-body {
  padding: 20px 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.page-about .about-origin__tl-item:hover .about-origin__tl-body {
  transform: translateX(6px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}
.page-about .about-origin__tl-body h3 {
  margin: 0 0 6px;
  font-family: var(--font-headline);
  font-size: 16px;
  font-weight: 900;
  color: var(--color-text);
}
.page-about .about-origin__tl-body p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* ---------- 02 设备清单的制定标准 ---------- */
.page-about .about-device__intro {
  max-width: 860px;
  margin-bottom: 34px;
  padding-left: 18px;
  border-left: 3px solid var(--color-success);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}
.page-about .about-device__filterzone {
  margin-bottom: 28px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
}
.page-about .about-device__filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.page-about .about-device__filters-label {
  flex-basis: 100%;
  margin-bottom: 2px;
  font-family: var(--font-headline);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}
.page-about .filter-btn {
  padding: 9px 18px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.page-about .filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}
.page-about .filter-btn[data-active="true"] {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-bg);
}
.page-about .about-device__cards {
  display: grid;
  gap: 20px;
  margin-bottom: 48px;
}
.page-about .about-device-card {
  position: relative;
  overflow: hidden;
  padding: 30px 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--color-bg-card), rgba(28, 30, 58, 0.7));
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.page-about .about-device-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 78px;
  height: 78px;
  border-bottom-left-radius: 78px;
  background: linear-gradient(225deg, rgba(255, 122, 0, 0.16), transparent 70%);
}
.page-about .about-device-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent);
}
.page-about .about-device-card__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: rgba(255, 122, 0, 0.12);
  color: var(--color-accent);
}
.page-about .about-device-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-headline);
  font-size: 20px;
  font-weight: 900;
  color: var(--color-text);
}
.page-about .about-device-card__num {
  margin: 0 0 14px;
  font-family: var(--font-headline);
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
  color: var(--color-highlight);
}
.page-about .about-device-card__num small {
  font-size: 20px;
  color: var(--color-text-secondary);
}
.page-about .about-device-card__desc {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-secondary);
}
.page-about .about-device-card__tip {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-family: var(--font-headline);
  font-size: 13px;
  color: var(--color-success);
}
.page-about .about-device__bottom {
  display: grid;
  gap: 32px;
  align-items: center;
}
.page-about .about-device__figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.page-about .about-device__figure:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}
.page-about .about-device__figure img {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-device__figure figcaption {
  padding: 14px 18px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-headline);
  font-size: 13px;
  color: var(--color-text-secondary);
}
.page-about .about-device__note h3 {
  margin: 0 0 18px;
  font-family: var(--font-headline);
  font-size: 22px;
  font-weight: 900;
  color: var(--color-text);
}
.page-about .about-device__note ul {
  display: grid;
  gap: 12px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}
.page-about .about-device__note li {
  position: relative;
  padding-left: 22px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}
.page-about .about-device__note li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--color-success);
  transform: rotate(45deg);
}

/* ---------- 03 分类数量与账户设置的关系 ---------- */
.page-about .about-account__layout {
  display: grid;
  gap: 32px;
}
.page-about .about-account__text p {
  margin: 0 0 1.1em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}
.page-about .about-account__text .btn {
  margin-top: 8px;
}
.page-about .about-account__visual {
  display: grid;
  gap: 22px;
  align-content: start;
}
.page-about .about-account__categories {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
}
.page-about .about-account__cat {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid rgba(255, 122, 0, 0.3);
  border-radius: 999px;
  background: rgba(255, 122, 0, 0.1);
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  transition: background 0.2s ease, transform 0.2s ease;
}
.page-about .about-account__cat:hover {
  background: rgba(255, 122, 0, 0.22);
  transform: translateY(-2px);
}
.page-about .about-account__quota {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: hidden;
  padding: 32px 26px;
  border: 1px solid rgba(255, 122, 0, 0.4);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255, 122, 0, 0.16), rgba(28, 30, 58, 0.92));
}
.page-about .about-account__quota::after {
  content: "";
  position: absolute;
  right: -28px;
  bottom: -28px;
  width: 110px;
  height: 110px;
  border: 16px solid rgba(255, 122, 0, 0.12);
  border-radius: 50%;
}
.page-about .about-account__quota-num {
  font-family: var(--font-headline);
  font-size: 62px;
  font-weight: 900;
  line-height: 1;
  color: var(--color-accent);
}
.page-about .about-account__quota-num small {
  font-size: 24px;
  color: var(--color-text);
}
.page-about .about-account__quota-label {
  font-family: var(--font-headline);
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* ---------- 04 透明更新记录 ---------- */
.page-about .about-updates__intro {
  max-width: 860px;
  margin-bottom: 34px;
  padding-left: 18px;
  border-left: 3px solid var(--color-accent);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}
.page-about .about-updates__list {
  display: grid;
  gap: 18px;
  margin: 0 0 36px;
  padding: 0;
  list-style: none;
}
.page-about .about-updates__item {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 26px 24px 26px 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.page-about .about-updates__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  bottom: 26px;
  width: 3px;
  border-radius: 3px;
  background: var(--color-accent);
}
.page-about .about-updates__item:hover {
  transform: translateX(6px);
  border-color: var(--color-accent);
}
.page-about .about-updates__order {
  justify-self: start;
  display: inline-block;
  padding: 5px 12px;
  border: 1px solid rgba(255, 122, 0, 0.3);
  border-radius: 999px;
  background: rgba(255, 122, 0, 0.1);
  font-family: var(--font-headline);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.page-about .about-updates__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-headline);
  font-size: 19px;
  font-weight: 900;
  color: var(--color-text);
}
.page-about .about-updates__body p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-secondary);
}
.page-about .about-updates__cta {
  margin-top: 8px;
}

/* ---------- 05 我们的承诺 ---------- */
.page-about .about-promise__figure {
  margin: 0 0 36px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.page-about .about-promise__figure img {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-promise__grid {
  display: grid;
  gap: 20px;
}
.page-about .about-promise-card {
  padding: 28px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--color-bg-card), rgba(28, 30, 58, 0.6));
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.page-about .about-promise-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}
.page-about .about-promise-card__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--color-accent);
}
.page-about .about-promise-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-headline);
  font-size: 18px;
  font-weight: 900;
  color: var(--color-text);
}
.page-about .about-promise-card p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text-secondary);
}
.page-about .about-promise__contact {
  margin-top: 48px;
  padding: 40px 24px;
  border: 1px solid rgba(255, 122, 0, 0.22);
  border-radius: var(--radius);
  background: rgba(255, 122, 0, 0.06);
  text-align: center;
}
.page-about .about-promise__contact-title {
  margin: 0 0 12px;
  font-family: var(--font-headline);
  font-size: 21px;
  font-weight: 900;
  color: var(--color-text);
}
.page-about .about-promise__contact-line {
  margin: 0 0 6px;
  font-family: var(--font-headline);
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-highlight);
}
.page-about .about-promise__contact-note {
  margin: 0 0 26px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-text-secondary);
}
.page-about .about-promise__contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: calc(var(--header-height) + 88px) 40px 88px;
  }
  .page-about .about-hero__title {
    font-size: 46px;
  }
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-hero__stat {
    padding: 30px 22px;
  }
  .page-about .about-section {
    padding: 104px 40px 0;
  }
  .page-about .about-section__heading h2 {
    font-size: 32px;
  }
  .page-about .about-origin__layout {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
  }
  .page-about .about-device__cards {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .about-device__bottom {
    grid-template-columns: 5fr 7fr;
    gap: 40px;
  }
  .page-about .about-account__layout {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
  }
  .page-about .about-promise__grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .about-promise-card--wide {
    grid-column: span 2;
  }
  .page-about .about-promise__contact {
    padding: 48px 40px;
  }
}

/* ---------- 桌面端 ---------- */
@media (min-width: 1024px) {
  .page-about .about-hero__container {
    padding-right: 150px;
  }
  .page-about .about-hero__title {
    font-size: 58px;
  }
  .page-about .about-hero__index {
    position: absolute;
    right: 44px;
    top: 50%;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding-left: 18px;
    border-left: 1px solid var(--color-border);
    transform: translateY(-50%);
  }
  .page-about .about-hero__index a {
    font-family: var(--font-headline);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
  }
  .page-about .about-hero__index a:hover {
    color: var(--color-accent);
  }
  .page-about .about-section {
    padding-top: 120px;
  }
  .page-about .about-origin__layout {
    align-items: center;
  }
  .page-about .about-origin__figure {
    margin-top: 24px;
  }
  .page-about .about-promise__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-promise-card--wide {
    grid-column: span 2;
  }
}