/* ==============================================
   PAGE ABOUT · 极速魅影品牌故事
   Scope: .page-about
   ============================================== */

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding-top: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: clamp(2rem, 8vw, 9rem);
  background: repeating-linear-gradient(
    180deg,
    transparent 0,
    transparent 24px,
    rgba(167, 43, 250, 0.16) 24px,
    rgba(167, 43, 250, 0.16) 25px
  );
  pointer-events: none;
  opacity: 0.6;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 38%;
  height: 30%;
  background: radial-gradient(closest-side, rgba(255, 42, 109, 0.14), transparent);
  pointer-events: none;
}

.page-about .about-breadcrumb {
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.page-about .about-hero__copy {
  max-width: 820px;
}

.page-about .about-hero__title {
  font-family: var(--font-headline);
  font-size: clamp(1.8rem, 4.6vw, 3.6rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: 0.02em;
  color: var(--c-text);
  text-shadow: 0 0 18px rgba(167, 43, 250, 0.45), 0 0 42px rgba(0, 229, 255, 0.22);
  transform: rotate(-1deg);
  transform-origin: left center;
  margin: 1rem 0 1.5rem;
}

.page-about .about-hero__lead {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  line-height: 1.75;
  color: var(--c-muted);
  max-width: 680px;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.page-about .about-hero__meta .tag {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.page-about .about-hero__panel {
  position: relative;
  border: 1px solid rgba(167, 43, 250, 0.4);
  border-left: 3px solid var(--c-electric-blue);
  background: linear-gradient(135deg, rgba(23, 20, 50, 0.88), rgba(9, 6, 15, 0.92));
  padding: 1rem 1.25rem 1.25rem;
  transform: rotate(0.5deg);
  box-shadow: 0 0 32px rgba(0, 229, 255, 0.08);
}

.page-about .about-hero__panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(154, 143, 191, 0.25);
  padding-bottom: 0.6rem;
  margin-bottom: 0.8rem;
  color: var(--c-muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-about .about-hero__led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-success);
  box-shadow: 0 0 10px var(--c-success);
  animation: page-about-led 1.6s ease-in-out infinite;
}

@keyframes page-about-led {
  50% { opacity: 0.35; }
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem 1rem;
  margin: 1rem 0;
}

.page-about .about-hero__stat dt {
  font-size: 0.75rem;
  color: var(--c-muted);
  margin-bottom: 0.25rem;
}

.page-about .about-hero__stat dd {
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  color: var(--c-text);
  letter-spacing: 0.02em;
}

.page-about .about-hero__panel-foot {
  font-size: 0.75rem;
  color: var(--c-muted);
  border-top: 1px dashed rgba(154, 143, 191, 0.3);
  padding-top: 0.7rem;
}

@media (min-width: 768px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
    align-items: center;
    gap: clamp(2rem, 5vw, 4rem);
  }
}

/* ---------- 品牌定位 ---------- */
.page-about .about-origin {
  position: relative;
  border-top: 1px solid rgba(167, 43, 250, 0.25);
  border-bottom: 1px solid rgba(0, 229, 255, 0.2);
  background:
    linear-gradient(105deg, rgba(18, 16, 32, 0.92) 0%, rgba(9, 6, 15, 0.6) 100%),
    radial-gradient(circle at 85% 20%, rgba(167, 43, 250, 0.14), transparent 60%);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-about .about-origin__container {
  display: grid;
  gap: 2rem;
}

.page-about .about-origin__copy {
  max-width: 820px;
}

.page-about .about-origin__copy p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-muted);
  margin: 1rem 0;
}

.page-about .about-origin__copy .section-title {
  margin: 0.5rem 0 1rem;
}

.page-about .about-origin__media {
  margin: 0;
  position: relative;
  align-self: end;
  justify-self: start;
}

.page-about .about-origin__media-img {
  display: block;
  width: 100%;
  max-width: 600px;
  object-fit: cover;
  border: 1px solid rgba(0, 229, 255, 0.25);
  opacity: 0.92;
}

.page-about .about-origin__media figcaption {
  font-size: 0.75rem;
  color: var(--c-muted);
  letter-spacing: 0.12em;
  margin-top: 0.6rem;
  border-left: 2px solid var(--c-neon-purple);
  padding-left: 0.75rem;
}

@media (min-width: 1024px) {
  .page-about .about-origin__container {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
  }

  .page-about .about-origin__media {
    margin-left: auto;
  }
}

/* ---------- 发展历程：数据流轨道 ---------- */
.page-about .about-timeline {
  position: relative;
  padding: clamp(3rem, 7vw, 6rem) 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(167, 43, 250, 0.12), transparent 55%),
    radial-gradient(circle at 85% 70%, rgba(255, 42, 109, 0.08), transparent 50%),
    linear-gradient(180deg, rgba(167, 43, 250, 0.1), rgba(0, 229, 255, 0.05) 50%, rgba(255, 42, 109, 0.08));
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(167, 43, 250, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-about .about-timeline__head {
  position: relative;
  margin-bottom: 2rem;
  z-index: 1;
}

.page-about .about-timeline__head .section-title {
  margin: 0.4rem 0;
}

.page-about .about-timeline__head .section-sub {
  max-width: 640px;
}

.page-about .about-timeline__viewport {
  position: relative;
  padding: 1rem 0 2rem;
}

.page-about .about-timeline__track {
  position: relative;
  display: grid;
  gap: 1.25rem;
  padding-left: 1.75rem;
}

.page-about .about-timeline__rail {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-neon-purple), var(--c-electric-blue), var(--c-fluorescent-pink));
  opacity: 0.5;
}

.page-about .about-timeline__item {
  position: relative;
  border: 1px solid rgba(154, 143, 191, 0.18);
  background: rgba(18, 16, 32, 0.72);
  padding: 1rem 1.1rem;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.page-about .about-timeline__item:hover {
  border-color: rgba(167, 43, 250, 0.55);
  background: rgba(23, 20, 50, 0.9);
}

.page-about .about-timeline__node {
  position: absolute;
  left: -1.75rem;
  top: 1rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 2px solid var(--c-neon-purple);
  box-shadow: 0 0 10px rgba(167, 43, 250, 0.55);
  transform: translateX(-50%);
}

.page-about .about-timeline__year {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--c-electric-blue);
  letter-spacing: 0.1em;
  background: rgba(23, 20, 50, 0.85);
  border: 1px solid rgba(0, 229, 255, 0.2);
  padding: 0.2rem 0.5rem;
  margin-bottom: 0.5rem;
}

.page-about .about-timeline__card-title {
  font-family: var(--font-headline);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: 0.03em;
  margin: 0.3rem 0 0.5rem;
}

.page-about .about-timeline__desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--c-muted);
  margin: 0;
}

.page-about .about-timeline__hint {
  margin-top: 1.25rem;
  color: var(--c-muted);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.page-about .about-timeline__chart {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
  position: relative;
  z-index: 1;
}

.page-about .about-timeline__chart-media {
  margin: 0;
  border: 1px solid rgba(0, 229, 255, 0.22);
  background: var(--c-surface);
  padding: 0.75rem;
}

.page-about .about-timeline__chart-img {
  display: block;
  width: 100%;
  object-fit: cover;
}

.page-about .about-timeline__chart-media figcaption {
  font-size: 0.75rem;
  color: var(--c-muted);
  margin-top: 0.5rem;
  letter-spacing: 0.1em;
}

.page-about .about-timeline__chart-note h3 {
  font-family: var(--font-headline);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 700;
  color: var(--c-text);
  margin: 0 0 0.75rem;
}

.page-about .about-timeline__chart-note p {
  color: var(--c-muted);
  line-height: 1.7;
  font-size: 0.95rem;
  max-width: 620px;
  margin: 0.75rem 0;
}

@media (min-width: 1024px) {
  .page-about .about-timeline__viewport {
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(167, 43, 250, 0.6) rgba(18, 16, 32, 0.6);
    padding-bottom: 1rem;
  }

  .page-about .about-timeline__track {
    display: flex;
    flex-wrap: nowrap;
    min-width: max-content;
    gap: 0;
    padding: 0;
  }

  .page-about .about-timeline__rail {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--c-neon-purple), var(--c-electric-blue), var(--c-fluorescent-pink), transparent);
  }

  .page-about .about-timeline__item {
    width: 280px;
    min-width: 280px;
    padding: 0 1.4rem 1.6rem;
    border-width: 1px 0 0 0;
    background: transparent;
  }

  .page-about .about-timeline__item:hover {
    background: rgba(18, 16, 32, 0.6);
    border-color: rgba(167, 43, 250, 0.4);
  }

  .page-about .about-timeline__node {
    top: -7px;
    left: 1.4rem;
    transform: none;
  }

  .page-about .about-timeline__year {
    margin-top: 2rem;
  }

  .page-about .about-timeline__chart {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
    align-items: center;
    gap: 2.5rem;
  }
}

/* ---------- 编辑团队与审核流程 ---------- */
.page-about .about-team {
  padding: clamp(3rem, 6vw, 5rem) 0;
  background: var(--c-bg);
  border-top: 1px solid rgba(255, 42, 109, 0.18);
}

.page-about .about-team__head {
  margin-bottom: 2rem;
}

.page-about .about-team__head .section-title {
  margin: 0.5rem 0;
}

.page-about .about-team__grid {
  display: grid;
  gap: 2rem;
}

.page-about .about-team__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .about-team__step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  border: 1px solid rgba(154, 143, 191, 0.2);
  background: var(--c-surface);
  padding: 1rem;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-about .about-team__step:hover {
  box-shadow: 0 0 22px rgba(0, 229, 255, 0.14);
  border-color: rgba(0, 229, 255, 0.35);
}

.page-about .about-team__step-num {
  font-size: 0.75rem;
  color: var(--c-fluorescent-pink);
  border-bottom: 1px solid var(--c-fluorescent-pink);
  padding-bottom: 0.2rem;
  letter-spacing: 0.08em;
  flex: none;
}

.page-about .about-team__step-body strong {
  display: block;
  color: var(--c-text);
  font-family: var(--font-headline);
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.page-about .about-team__step-body span {
  color: var(--c-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.page-about .about-team__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-about .about-team__stats > div {
  flex: 1 1 140px;
  border: 1px solid rgba(0, 229, 255, 0.2);
  background: rgba(18, 16, 32, 0.7);
  padding: 0.75rem 1rem;
}

.page-about .about-team__stats span {
  display: block;
  font-size: 1.5rem;
  color: var(--c-electric-blue);
}

.page-about .about-team__stats small {
  color: var(--c-muted);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.page-about .about-team__media {
  position: relative;
  margin: 0;
}

.page-about .about-team__media-img {
  display: block;
  width: 100%;
  object-fit: cover;
  border: 1px solid rgba(167, 43, 250, 0.35);
}

.page-about .about-team__media-note {
  margin-top: 1rem;
  display: flex;
  justify-content: flex-end;
  color: var(--c-muted);
  font-size: 0.8rem;
  text-align: right;
}

.page-about .about-team__media-note .mono {
  display: block;
  margin-top: 0.2rem;
  letter-spacing: 0.1em;
  color: var(--c-neon-purple);
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 2.5rem;
  }

  .page-about .about-team__media {
    position: sticky;
    top: 6rem;
  }
}

/* ---------- 分类体系 ---------- */
.page-about .about-taxonomy {
  position: relative;
  border-top: 1px solid rgba(255, 42, 109, 0.25);
  background:
    radial-gradient(circle at 20% 20%, rgba(167, 43, 250, 0.12), transparent 60%),
    var(--c-bg);
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.page-about .about-taxonomy__container {
  display: grid;
  gap: 2rem;
}

.page-about .about-taxonomy__intro {
  max-width: 640px;
}

.page-about .about-taxonomy__intro p {
  color: var(--c-muted);
  line-height: 1.75;
  font-size: 0.95rem;
  margin: 0.75rem 0;
}

.page-about .about-taxonomy__cats {
  display: grid;
  gap: 1rem;
}

.page-about .about-taxonomy__cat {
  position: relative;
  border: 1px solid rgba(154, 143, 191, 0.2);
  background: rgba(18, 16, 32, 0.8);
  padding: 1.2rem 1.2rem 1.4rem;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.page-about .about-taxonomy__cat:hover {
  box-shadow: 0 0 24px rgba(167, 43, 250, 0.25);
  transform: translateY(-2px);
}

.page-about .about-taxonomy__cat .mono {
  font-size: 0.7rem;
  color: var(--c-electric-blue);
  letter-spacing: 0.12em;
}

.page-about .about-taxonomy__cat h3 {
  font-family: var(--font-headline);
  font-size: 1.15rem;
  color: var(--c-text);
  letter-spacing: 0.04em;
  margin: 0.4rem 0 0.5rem;
}

.page-about .about-taxonomy__cat p {
  color: var(--c-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  margin: 0;
}

.page-about .about-taxonomy__cat:nth-child(1) {
  border-top: 2px solid var(--c-neon-purple);
}

.page-about .about-taxonomy__cat:nth-child(2) {
  border-top: 2px solid var(--c-electric-blue);
}

.page-about .about-taxonomy__cat:nth-child(3) {
  border-top: 2px solid var(--c-fluorescent-pink);
}

@media (min-width: 1024px) {
  .page-about .about-taxonomy__container {
    grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-taxonomy__cats {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }
}

/* ---------- 里程碑与认可 ---------- */
.page-about .about-cred {
  padding: clamp(2rem, 5vw, 4rem) 0;
  background: var(--c-surface);
}

.page-about .about-cred__frame {
  border: 1px solid rgba(0, 229, 255, 0.18);
  padding: 1.5rem;
  display: grid;
  gap: 1.5rem;
  background:
    linear-gradient(135deg, rgba(167, 43, 250, 0.08), rgba(0, 229, 255, 0.05)),
    var(--c-bg);
}

.page-about .about-cred__left .section-title {
  margin: 0.5rem 0 0;
}

.page-about .about-cred__list {
  display: grid;
  gap: 0.75rem;
}

.page-about .about-cred__item {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 1rem;
  align-items: baseline;
  border-bottom: 1px dashed rgba(154, 143, 191, 0.25);
  padding-bottom: 0.75rem;
}

.page-about .about-cred__item .mono {
  color: var(--c-fluorescent-pink);
  font-size: 0.9rem;
  font-weight: 700;
}

.page-about .about-cred__item p {
  color: var(--c-muted);
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
}

@media (min-width: 900px) {
  .page-about .about-cred__frame {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
  }
}

/* ---------- 帮助与反馈 ---------- */
.page-about .about-help {
  padding: clamp(3rem, 7vw, 6rem) 0;
  background: var(--c-bg);
  position: relative;
}

.page-about .about-help::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 0%, rgba(167, 43, 250, 0.18), transparent 60%);
  pointer-events: none;
}

.page-about .about-help__panel {
  position: relative;
  border: 1px solid rgba(255, 42, 109, 0.3);
  background: linear-gradient(135deg, rgba(23, 20, 50, 0.9), rgba(9, 6, 15, 0.95));
  padding: clamp(1.5rem, 4vw, 3rem);
  display: grid;
  gap: 1.5rem;
}

.page-about .about-help__copy p {
  color: var(--c-muted);
  line-height: 1.75;
  max-width: 620px;
}

.page-about .about-help__contact {
  font-size: 0.95rem;
  color: var(--c-text);
  letter-spacing: 0.03em;
  margin-top: 1rem;
}

.page-about .about-help__note {
  font-size: 0.8rem;
  color: var(--c-muted);
  border-left: 2px solid var(--c-electric-blue);
  padding-left: 0.75rem;
  margin-top: 0.75rem;
}

.page-about .about-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.page-about .about-help__home {
  width: 100%;
  text-align: left;
  color: var(--c-muted);
  font-size: 0.85rem;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  margin-top: 0.5rem;
}

@media (min-width: 900px) {
  .page-about .about-help__panel {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: 2.5rem;
    align-items: center;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__led {
    animation: none;
  }

  .page-about .about-taxonomy__cat,
  .page-about .about-timeline__item,
  .page-about .about-team__step {
    transition: none;
  }
}