/* ===== 品牌故事 · page-about ===== */

.page-about {
  position: relative;
  background-color: var(--c-deep-space);
  color: var(--c-white);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-about .about-breadcrumbs {
  position: relative;
  z-index: 2;
  padding: var(--space-4) 0 var(--space-2);
  background: transparent;
}

.page-about .about-breadcrumbs__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.page-about .about-breadcrumbs__inner a {
  color: var(--c-neon-green);
  text-decoration: none;
}

.page-about .about-breadcrumbs__inner a:hover {
  text-decoration: underline;
}

.page-about .about-breadcrumbs__sep {
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: var(--space-5) 0 var(--space-7);
  background:
    radial-gradient(ellipse at 85% 20%, rgba(123, 47, 255, 0.5) 0%, transparent 55%),
    linear-gradient(160deg, var(--c-deep-space) 0%, var(--c-dark-violet) 100%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 4px;
  background: linear-gradient(90deg, var(--c-neon-green) 0%, var(--c-electric-purple) 70%, transparent 100%);
  transform: skewY(-1deg);
}

.page-about .about-hero__inner {
  display: grid;
  gap: var(--space-6);
}

.page-about .about-hero__content {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__kicker {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  background: rgba(0, 255, 136, 0.12);
  border: 1px solid rgba(0, 255, 136, 0.45);
  border-radius: var(--radius-pill);
  color: var(--c-neon-green);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.page-about .about-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 4.5vw, 3.5rem);
  font-style: italic;
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--c-white);
  margin: 0 0 var(--space-4);
  padding-left: var(--space-4);
  position: relative;
}

.page-about .about-hero__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.1em;
  bottom: 0.1em;
  width: 6px;
  background: var(--c-neon-green);
  transform: skewX(-12deg);
}

.page-about .about-hero__lead {
  font-size: 1.05rem;
  line-height: 1.75;
  color: rgba(245, 240, 232, 0.86);
  max-width: 56ch;
  margin-bottom: var(--space-5);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.page-about .btn {
  display: inline-block;
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  line-height: 1.4;
}

.page-about .btn--primary {
  background: var(--c-electric-purple);
  color: var(--c-white);
  box-shadow: 0 6px 24px rgba(123, 47, 255, 0.38);
}

.page-about .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(123, 47, 255, 0.52);
}

.page-about .btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: var(--c-white);
  background: transparent;
}

.page-about .btn--ghost:hover {
  border-color: var(--c-neon-green);
  color: var(--c-neon-green);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin: var(--space-5) 0 0;
  padding: var(--space-4) 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  list-style: none;
}

.page-about .about-hero__stat dt {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.page-about .about-hero__stat dd {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-style: italic;
  font-weight: 900;
  color: var(--c-neon-green);
  margin: 0;
}

.page-about .about-hero__visual {
  position: relative;
  z-index: 1;
  max-width: 100%;
}

.page-about .about-hero__visual::after {
  content: "";
  position: absolute;
  inset: 14px -10px -10px 14px;
  border: 2px solid var(--c-electric-purple);
  border-radius: var(--radius-3);
  z-index: -1;
  transform: skewX(-5deg);
}

.page-about .about-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-3);
  transform: skewX(-2deg);
}

/* ---------- 页内导航 ---------- */
.page-about .about-pagenav {
  background: var(--c-deep-space);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-3) 0;
}

.page-about .about-pagenav__inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.page-about .about-pagenav__inner a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-pill);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.page-about .about-pagenav__inner a:hover {
  color: var(--c-neon-green);
  background: rgba(0, 255, 136, 0.08);
}

/* ---------- 通用节标题 ---------- */
.page-about .about-section-head {
  max-width: 720px;
  margin-bottom: var(--space-6);
}

.page-about .about-section-head--light h2 {
  color: var(--c-white);
}

.page-about .about-section-head--light p {
  color: rgba(245, 240, 232, 0.75);
}

.page-about .about-section-head__num {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-electric-purple);
  margin-bottom: var(--space-2);
}

.page-about .about-section-head--light .about-section-head__num {
  color: var(--c-neon-green);
}

.page-about .about-section-head h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-style: italic;
  font-weight: 900;
  line-height: 1.12;
  text-transform: uppercase;
  color: var(--c-ink);
  margin: 0 0 var(--space-3);
}

.page-about .about-section-head p {
  color: rgba(20, 20, 20, 0.7);
  font-size: 1rem;
  line-height: 1.65;
  margin: 0;
}

/* ---------- 发展历程 ---------- */
.page-about .about-story {
  padding: var(--space-7) 0;
  background: var(--c-warm-paper);
  color: var(--c-ink);
}

.page-about .about-timeline {
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 0;
  bottom: 0;
  width: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--c-ink) 0%, var(--c-electric-purple) 55%, var(--c-deep-space) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: var(--space-3);
  align-items: start;
  margin-bottom: var(--space-6);
}

.page-about .about-timeline__item:last-child {
  margin-bottom: 0;
}

.page-about .about-timeline__node {
  position: relative;
  z-index: 1;
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-about .about-timeline__node::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--c-ink);
  border: 4px solid var(--c-warm-paper);
  box-shadow: 0 0 0 3px var(--c-ink);
  margin-bottom: var(--space-2);
  flex-shrink: 0;
}

.page-about .about-timeline__year {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 900;
  font-style: italic;
  color: var(--c-ink);
  white-space: nowrap;
  margin-top: var(--space-1);
}

.page-about .about-timeline__flag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-electric-purple);
  margin-top: 3px;
}

.page-about .about-timeline__card {
  background: var(--c-white);
  border-radius: var(--radius-3);
  padding: var(--space-4) var(--space-5);
  box-shadow: 0 6px 22px rgba(20, 20, 20, 0.08);
  border-left: 5px solid var(--c-neon-green);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.page-about .about-timeline__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 38px rgba(20, 20, 20, 0.15);
}

.page-about .about-timeline__card h3 {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-style: italic;
  font-weight: 900;
  color: var(--c-ink);
  margin: 0 0 var(--space-2);
}

.page-about .about-timeline__card p {
  color: rgba(20, 20, 20, 0.75);
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0;
}

/* ---------- 品牌理念 ---------- */
.page-about .about-values {
  position: relative;
  padding: var(--space-7) 0;
  background:
    radial-gradient(ellipse at 85% 10%, rgba(123, 47, 255, 0.35) 0%, transparent 55%),
    linear-gradient(170deg, var(--c-dark-violet) 0%, var(--c-ink) 100%);
}

.page-about .about-values__grid {
  display: grid;
  gap: var(--space-4);
}

.page-about .about-value {
  position: relative;
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-3);
  overflow: hidden;
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

.page-about .about-value:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(0, 255, 136, 0.4);
}

.page-about .about-value__index {
  position: absolute;
  top: var(--space-3);
  right: var(--space-4);
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-style: italic;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.1);
}

.page-about .about-value__icon {
  display: inline-block;
  color: var(--c-neon-green);
  margin-bottom: var(--space-3);
}

.page-about .about-value h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-style: italic;
  font-weight: 900;
  color: var(--c-white);
  margin: 0 0 var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.page-about .about-value p {
  color: rgba(245, 240, 232, 0.78);
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0;
  max-width: 36ch;
}

/* ---------- 平台规模 ---------- */
.page-about .about-scale {
  position: relative;
  padding: var(--space-7) 0;
  background:
    linear-gradient(115deg, var(--c-deep-space) 0%, var(--c-deep-space) 60%, rgba(123, 47, 255, 0.28) 100%);
}

.page-about .about-scale::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(0, 255, 136, 0.06) 25%, transparent 25%),
    linear-gradient(225deg, rgba(0, 255, 136, 0.06) 25%, transparent 25%);
  background-size: 36px 36px;
  pointer-events: none;
}

.page-about .about-scale__grid {
  display: grid;
  gap: var(--space-6);
}

.page-about .about-scale__visual {
  position: relative;
  z-index: 1;
}

.page-about .about-scale__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-neon-green);
  margin-bottom: var(--space-2);
}

.page-about .about-scale__visual h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-style: italic;
  font-weight: 900;
  line-height: 1.12;
  text-transform: uppercase;
  color: var(--c-white);
  margin: 0 0 var(--space-3);
}

.page-about .about-scale__visual p {
  color: rgba(245, 240, 232, 0.8);
  font-size: 1rem;
  line-height: 1.65;
  margin: 0 0 var(--space-4);
  max-width: 48ch;
}

.page-about .about-scale__figure {
  position: relative;
  margin: var(--space-4) 0 0;
}

.page-about .about-scale__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-3);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.page-about .about-scale__figure figcaption {
  margin-top: var(--space-2);
  font-size: 13px;
  color: rgba(245, 240, 232, 0.55);
}

.page-about .about-scale__metrics {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.page-about .about-scale__metric {
  padding: var(--space-4) var(--space-3);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-2);
  border-top: 4px solid var(--c-electric-purple);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.page-about .about-scale__metric:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.1);
}

.page-about .about-scale__num {
  font-family: var(--font-heading);
  font-size: 1.9rem;
  font-style: italic;
  font-weight: 900;
  color: var(--c-neon-green);
  line-height: 1;
}

.page-about .about-scale__label {
  font-size: 14px;
  color: rgba(245, 240, 232, 0.75);
  line-height: 1.4;
}

/* ---------- 访问路径速览 ---------- */
.page-about .about-path {
  padding: var(--space-7) 0;
  background: var(--c-warm-paper);
}

.page-about .about-path__grid {
  display: grid;
  gap: var(--space-4);
}

.page-about .about-path__card {
  background: var(--c-white);
  border-radius: var(--radius-3);
  padding: var(--space-5);
  border-left: 6px solid var(--c-deep-space);
  box-shadow: 0 6px 22px rgba(20, 20, 20, 0.06);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.page-about .about-path__card:hover {
  border-left-color: var(--c-electric-purple);
  transform: translateX(4px);
}

.page-about .about-path__tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-electric-purple);
  margin-bottom: var(--space-2);
}

.page-about .about-path__card p {
  color: rgba(20, 20, 20, 0.75);
  font-size: 0.95rem;
  line-height: 1.68;
  margin: 0;
}

/* ---------- 合作伙伴 ---------- */
.page-about .about-partners {
  padding: var(--space-7) 0;
  background: #EFEBE3;
}

.page-about .about-partners__intro {
  font-size: 1rem;
  color: rgba(20, 20, 20, 0.75);
  margin-bottom: var(--space-4);
}

.page-about .about-partners__list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin: 0 0 var(--space-6);
  padding: var(--space-4);
  background: #E3DFD6;
  border-radius: var(--radius-3);
}

.page-about .about-partners__badge {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 64px;
  padding: var(--space-3) var(--space-4) var(--space-3) 52px;
  background: #F2F0EC;
  border-radius: var(--radius-2);
  font-size: 14px;
  font-weight: 600;
  color: rgba(20, 20, 20, 0.82);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
  border: 1px solid transparent;
}

.page-about .about-partners__badge::before {
  content: "";
  position: absolute;
  left: var(--space-4);
  top: 50%;
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, var(--c-deep-space) 0%, var(--c-electric-purple) 100%);
  transform: translateY(-50%) rotate(45deg);
}

.page-about .about-partners__badge:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(20, 20, 20, 0.12);
  border-color: var(--c-electric-purple);
}

.page-about .about-partners__visual {
  margin: 0;
}

.page-about .about-partners__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-3);
  border: 1px solid #D8D4CB;
}

.page-about .about-partners__visual figcaption {
  margin-top: var(--space-2);
  font-size: 13px;
  color: rgba(20, 20, 20, 0.55);
  text-align: center;
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  padding: var(--space-7) 0;
  background:
    radial-gradient(ellipse at 20% 90%, rgba(123, 47, 255, 0.4) 0%, transparent 55%),
    var(--c-deep-space);
}

.page-about .about-cta__inner {
  text-align: center;
  max-width: 720px;
}

.page-about .about-cta__inner h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-style: italic;
  font-weight: 900;
  text-transform: uppercase;
  color: var(--c-white);
  margin: 0 0 var(--space-3);
}

.page-about .about-cta__inner p {
  color: rgba(245, 240, 232, 0.75);
  font-size: 1.05rem;
  line-height: 1.65;
  margin: 0 auto var(--space-5);
  max-width: 48ch;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: var(--space-6);
  }

  .page-about .about-hero__stats {
    margin-top: var(--space-5);
  }

  .page-about .about-value__index {
    font-size: 3rem;
  }

  .page-about .about-scale__metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-path__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-partners__list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-1.5px);
  }

  .page-about .about-timeline__item {
    grid-template-columns: 1fr 120px 1fr;
    gap: var(--space-5);
  }

  .page-about .about-timeline__node {
    grid-column: 2;
    grid-row: 1;
    align-items: center;
    text-align: center;
    padding-top: 10px;
  }

  .page-about .about-timeline__node::before {
    margin-bottom: var(--space-2);
  }

  .page-about .about-timeline__year {
    font-size: 1.2rem;
    margin-top: var(--space-1);
  }

  .page-about .about-timeline__flag {
    margin-top: 3px;
  }

  .page-about .about-timeline__item--left .about-timeline__card {
    grid-column: 1;
    grid-row: 1;
    text-align: right;
    border-left: none;
    border-right: 5px solid var(--c-neon-green);
  }

  .page-about .about-timeline__item--right .about-timeline__card {
    grid-column: 3;
    grid-row: 1;
  }

  .page-about .about-values__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }

  .page-about .about-value:nth-child(even) {
    transform: translateY(var(--space-5));
  }

  .page-about .about-scale__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-7);
    align-items: center;
  }

  .page-about .about-scale__metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-scale__metric {
    padding: var(--space-5) var(--space-4);
  }

  .page-about .about-path__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
  }

  .page-about .about-partners__list {
    grid-template-columns: repeat(6, 1fr);
  }

  .page-about .about-partners__badge {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    min-height: 96px;
    padding: var(--space-3) var(--space-2);
  }

  .page-about .about-partners__badge::before {
    position: static;
    transform: none;
    margin-bottom: var(--space-2);
    width: 26px;
    height: 26px;
  }
}

/* ---------- 超宽桌面 ---------- */
@media (min-width: 1280px) {
  .page-about .about-hero {
    padding-top: var(--space-7);
  }

  .page-about .about-hero__title {
    max-width: 14ch;
  }
}