/* ========== 页面专属：品牌故事 about ========== */
.page-about {
  --about-mist-card: #ffffff;
  --about-text-dark: #16162a;
  --about-purple-soft: rgba(181, 55, 242, 0.14);
  --about-blue-soft: rgba(30, 144, 255, 0.14);
  --about-border-soft: rgba(255, 255, 255, 0.1);
  --about-border-light: rgba(22, 22, 42, 0.08);
  background: var(--sf-bg-night);
  color: var(--sf-mist);
  overflow-x: hidden;
}

/* ===== 首屏 ===== */
.about-hero {
  position: relative;
  padding: 2rem 0 3.5rem;
  background:
    radial-gradient(ellipse 55% 45% at 88% 16%, var(--about-purple-soft), transparent 70%),
    radial-gradient(ellipse 45% 40% at 8% 88%, var(--about-blue-soft), transparent 72%),
    var(--sf-bg-night);
}

.about-hero .breadcrumb {
  margin-bottom: 2.5rem;
}

.about-hero-inner {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.about-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--fs-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sf-purple);
  margin: 0 0 1rem;
}

.about-hero-kicker::before {
  content: "";
  width: 2.25rem;
  height: 2px;
  display: inline-block;
  background: var(--sf-purple);
}

.about-hero h1 {
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
  color: var(--sf-mist);
  max-width: 14em;
}

.about-hero-lead {
  font-size: var(--fs-lg);
  line-height: 1.7;
  color: rgba(240, 240, 245, 0.78);
  max-width: 40rem;
  margin: 0 0 2rem;
}

.about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.about-hero-visual {
  position: relative;
}

.about-hero-figure {
  margin: 0;
  aspect-ratio: 16 / 12;
  overflow: hidden;
  background: var(--sf-bg-deep);
  border: 1px solid var(--about-border-soft);
}

.about-hero-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-hero-chip {
  position: absolute;
  left: -0.75rem;
  bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 0.65rem 1.1rem;
  background: linear-gradient(135deg, var(--sf-purple), #8a1fc8);
  color: #fff;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  box-shadow: var(--shadow-purple);
}

.about-hero-chip-ver {
  font-size: var(--fs-lg);
  font-weight: 700;
  line-height: 1;
}

.about-hero-chip-label {
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  opacity: 0.9;
}

.about-hero-diagonal {
  position: absolute;
  right: 0;
  top: 0;
  width: 38%;
  height: 0.75rem;
  background: linear-gradient(90deg, transparent, var(--sf-blue), transparent);
  transform: skewX(-32deg);
  opacity: 0.45;
  pointer-events: none;
}

/* ===== 章节头共用微调 ===== */
.page-about .about-section-head {
  margin-bottom: 2.5rem;
}

/* ===== 01 重庆生根 ===== */
.about-rooted {
  position: relative;
  padding: 4.5rem 0;
  background:
    linear-gradient(135deg, rgba(181, 55, 242, 0.18) 0%, rgba(10, 10, 26, 0) 42%),
    var(--sf-bg-deep);
}

.page-about .about-rooted .section-index,
.page-about .about-rooted .section-title {
  color: var(--sf-mist);
}

.page-about .about-rooted .section-desc {
  color: rgba(240, 240, 245, 0.62);
}

.about-rooted-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.about-rooted-copy p {
  line-height: 1.85;
  margin: 0 0 1.25rem;
  color: rgba(240, 240, 245, 0.82);
}

.about-rooted-copy p:first-of-type {
  font-size: var(--fs-md);
}

.about-rooted-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  border-top: 1px solid var(--about-border-soft);
}

.about-rooted-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--about-border-soft);
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: rgba(240, 240, 245, 0.72);
  transition: color 0.25s ease, transform 0.25s ease;
}

.about-rooted-list li:hover {
  color: var(--sf-mist);
  transform: translateX(4px);
}

.about-rooted-num {
  color: var(--sf-orange);
  font-size: var(--fs-xs);
  line-height: 1.2;
  min-width: 2em;
}

.about-rooted-art {
  max-width: 460px;
  width: 100%;
  margin: 0 auto;
}

.about-rooted-art svg {
  display: block;
  width: 100%;
  height: auto;
}

.about-art-bg {
  fill: rgba(255, 255, 255, 0.03);
  stroke: rgba(181, 55, 242, 0.18);
  stroke-width: 1;
}

.about-art-layer {
  stroke: rgba(181, 55, 242, 0.42);
  stroke-width: 1;
}

.about-art-layer:nth-child(1) {
  fill: rgba(181, 55, 242, 0.14);
}

.about-art-layer:nth-child(2) {
  fill: rgba(30, 144, 255, 0.13);
}

.about-art-layer:nth-child(3) {
  fill: rgba(181, 55, 242, 0.16);
}

.about-art-layer:nth-child(4) {
  fill: rgba(30, 144, 255, 0.12);
}

.about-art-layer:nth-child(5) {
  fill: rgba(181, 55, 242, 0.16);
}

.about-art-line {
  stroke: var(--sf-orange);
  stroke-width: 2;
  stroke-dasharray: 6 4;
  opacity: 0.85;
}

.about-art-car {
  fill: var(--sf-orange);
  filter: drop-shadow(0 0 10px rgba(255, 107, 26, 0.6));
}

.about-art-windows circle {
  fill: rgba(240, 240, 245, 0.6);
}

/* ===== 02 发展时间线 ===== */
.about-timeline-sec {
  position: relative;
  padding: 4.5rem 0;
  background:
    radial-gradient(ellipse 50% 55% at 90% 30%, var(--about-blue-soft), transparent 70%),
    var(--sf-bg-night);
}

.page-about .about-timeline-sec .section-index,
.page-about .about-timeline-sec .section-title {
  color: var(--sf-mist);
}

.page-about .about-timeline-sec .section-desc {
  color: rgba(240, 240, 245, 0.62);
}

.about-timeline-grid {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}

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

.about-timeline-track {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 14px;
  width: 4px;
  transform: translateX(-2px);
  pointer-events: none;
}

.about-timeline-track svg {
  display: block;
  width: 100%;
  height: 100%;
}

.about-timeline-track-line {
  stroke: rgba(30, 144, 255, 0.35);
  stroke-width: 1;
  stroke-dasharray: 4 6;
}

.about-timeline-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.about-timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 1rem;
  padding: 1.25rem 0 1.25rem 0.25rem;
}

.about-timeline-item:first-child {
  padding-top: 0;
}

.about-timeline-item:last-child {
  padding-bottom: 0;
}

.about-timeline-dot {
  position: relative;
  z-index: 1;
  justify-self: center;
  align-self: start;
  width: 14px;
  height: 14px;
  margin-top: 0.35rem;
  border-radius: 50%;
  background: var(--sf-purple);
  box-shadow: 0 0 0 4px rgba(181, 55, 242, 0.18), 0 0 16px rgba(181, 55, 242, 0.55);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.about-timeline-item:nth-child(even) .about-timeline-dot {
  background: var(--sf-blue);
  box-shadow: 0 0 0 4px rgba(30, 144, 255, 0.18), 0 0 16px rgba(30, 144, 255, 0.55);
}

.about-timeline-item:hover .about-timeline-dot {
  transform: scale(1.2);
  box-shadow: 0 0 0 6px rgba(181, 55, 242, 0.22), 0 0 26px rgba(181, 55, 242, 0.75);
}

.about-timeline-item:nth-child(even):hover .about-timeline-dot {
  box-shadow: 0 0 0 6px rgba(30, 144, 255, 0.22), 0 0 26px rgba(30, 144, 255, 0.75);
}

.about-timeline-body {
  background: rgba(18, 18, 42, 0.9);
  border: 1px solid var(--about-border-soft);
  border-radius: 4px;
  padding: 1.25rem 1.35rem;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.about-timeline-item:hover .about-timeline-body {
  background: rgba(24, 24, 54, 0.95);
  border-color: rgba(181, 55, 242, 0.45);
  transform: translateY(-2px);
}

.about-timeline-version {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--sf-orange);
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(255, 107, 26, 0.4);
  border-radius: 999px;
  margin-bottom: 0.6rem;
}

.about-timeline-body h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin: 0 0 0.45rem;
  color: var(--sf-mist);
}

.about-timeline-body p {
  font-size: var(--fs-sm);
  line-height: 1.75;
  margin: 0;
  color: rgba(240, 240, 245, 0.66);
}

.about-timeline-aside {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.about-timeline-figure {
  margin: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--sf-bg-deep);
  border: 1px solid var(--about-border-soft);
}

.about-timeline-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.about-timeline-figure:hover img {
  transform: scale(1.03);
}

.about-timeline-note {
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: rgba(240, 240, 245, 0.58);
  border-left: 3px solid var(--sf-blue);
  padding-left: 1rem;
  margin: 0;
}

/* ===== 03 核心价值 ===== */
.about-values {
  position: relative;
  padding: 4.5rem 0;
  background: var(--sf-mist);
  color: var(--about-text-dark);
}

.page-about .about-values .section-head {
  border-bottom: none;
}

.page-about .about-values .section-index {
  color: var(--sf-purple);
}

.page-about .about-values .section-title {
  color: var(--about-text-dark);
}

.page-about .about-values .section-desc {
  color: rgba(22, 22, 42, 0.6);
}

.about-values-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

.about-value-card {
  position: relative;
  background: var(--about-mist-card);
  border: 1px solid var(--about-border-light);
  border-radius: 6px;
  padding: 1.5rem 1.5rem 1.75rem;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.about-value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sf-purple), var(--sf-blue));
  opacity: 0;
  transition: opacity 0.25s ease;
}

.about-value-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(22, 22, 42, 0.12);
}

.about-value-card:hover::before {
  opacity: 1;
}

.about-value-card h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin: 0.9rem 0 0.55rem;
  color: var(--about-text-dark);
}

.about-value-card p {
  font-size: var(--fs-sm);
  line-height: 1.75;
  margin: 0;
  color: rgba(22, 22, 42, 0.68);
  padding-right: 1.75rem;
}

.about-value-arrow {
  position: absolute;
  right: 1.25rem;
  bottom: 1.25rem;
  font-size: var(--fs-lg);
  color: var(--sf-purple);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.about-value-card:hover .about-value-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ===== 04 团队与实力 ===== */
.about-team {
  position: relative;
  padding: 4.5rem 0;
  background:
    linear-gradient(180deg, var(--sf-bg-night) 0%, var(--sf-bg-deep) 100%);
}

.page-about .about-team .section-index,
.page-about .about-team .section-title {
  color: var(--sf-mist);
}

.page-about .about-team .section-desc {
  color: rgba(240, 240, 245, 0.62);
}

.about-team-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 0 0 3rem;
}

.about-stat {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem 1.1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--about-border-soft);
  border-radius: 6px;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.about-stat:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(57, 255, 20, 0.28);
  transform: translateY(-3px);
}

.about-stat-num {
  font-size: var(--fs-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--sf-green);
}

.about-stat-label {
  font-size: var(--fs-sm);
  color: rgba(240, 240, 245, 0.6);
}

.about-team-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.about-team-copy h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 1rem;
  color: var(--sf-mist);
}

.about-team-copy p {
  line-height: 1.85;
  margin: 0 0 1.5rem;
  color: rgba(240, 240, 245, 0.72);
}

.about-team-badges {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.about-team-badges li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: var(--fs-sm);
  color: rgba(240, 240, 245, 0.78);
}

.about-team-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.about-team-figure {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--sf-bg-night);
  border: 1px solid var(--about-border-soft);
  border-radius: 6px;
}

.about-team-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.about-team-figure:hover img {
  transform: scale(1.03);
}

/* ===== 衔接区 ===== */
.about-next {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--sf-purple) 0%, #6a1bbd 55%, var(--sf-bg-deep) 120%);
  text-align: center;
}

.about-next-slogan {
  font-size: var(--fs-lg);
  font-weight: 500;
  line-height: 1.6;
  color: #fff;
  margin: 0 0 2rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}

.about-next-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.about-next-links a {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.1rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.about-next-links a:hover,
.about-next-links a:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .about-team-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 768px) {
  .about-hero {
    padding: 3rem 0 5rem;
  }

  .about-hero-inner {
    grid-template-columns: 7fr 5fr;
    gap: 2.5rem;
  }

  .about-hero-figure {
    aspect-ratio: 4 / 3;
  }

  .about-rooted {
    padding: 5.5rem 0;
  }

  .about-rooted-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .about-value-card {
    padding: 1.75rem 1.75rem 2rem;
  }
}

@media (min-width: 900px) {
  .about-values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .about-timeline-sec {
    padding: 5.5rem 0;
  }

  .about-timeline-grid {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
  }

  .about-timeline-aside {
    margin-top: 3.5rem;
  }

  .about-team {
    padding: 5.5rem 0;
  }

  .about-team-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .about-team-stats {
    margin-bottom: 4rem;
  }
}

@media (min-width: 1200px) {
  .about-values-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-value-card:nth-child(even) {
    transform: translateY(1.25rem);
  }

  .about-value-card:nth-child(even):hover {
    transform: translateY(calc(1.25rem - 5px));
  }
}