/* ===== 品牌档案页专属样式 ===== */
.page-about {
  position: relative;
}

.page-about .about-hero-inner,
.page-about .about-milestones-inner,
.page-about .about-team-grid,
.page-about .about-credentials .container,
.page-about .about-honors .container {
  position: relative;
  z-index: 1;
}

/* ---------- 首页首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-space);
  color: var(--color-snow);
  padding: 40px 0 52px;
}
.page-about .about-hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: -10%;
  width: 46%;
  height: 130%;
  background: linear-gradient(120deg, transparent, rgba(0, 212, 160, 0.14), transparent);
  transform: rotate(9deg);
  pointer-events: none;
}
.page-about .about-hero-head {
  margin-top: 32px;
  max-width: 880px;
}
.page-about .about-hero .section-kicker,
.page-about .about-team .section-kicker,
.page-about .about-honors .section-kicker {
  color: var(--color-track);
}
.page-about .page-title {
  font-family: var(--font-head);
  font-size: clamp(30px, 6vw, 46px);
  font-weight: 900;
  line-height: 1.18;
  color: var(--color-snow);
  margin: 12px 0 0;
  letter-spacing: -0.01em;
}
.page-about .about-hero .page-intro {
  margin-top: 18px;
  max-width: 680px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(248, 249, 250, 0.82);
}
.page-about .about-hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 40px;
  border-top: 1px solid rgba(248, 249, 250, 0.14);
  padding-top: 28px;
}
.page-about .hero-stat {
  background: rgba(248, 249, 250, 0.04);
  border-left: 3px solid var(--color-track);
  padding: 14px 16px;
}
.page-about .hero-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-snow);
}
.page-about .hero-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: rgba(248, 249, 250, 0.68);
}

/* ---------- 品牌故事 ---------- */
.page-about .about-story {
  position: relative;
  background: var(--color-space);
  color: var(--color-snow);
  padding: 68px 0;
}
.page-about .about-story::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(180deg, rgba(0, 212, 160, 0.07), transparent);
  pointer-events: none;
}
.page-about .about-story-grid {
  display: grid;
  gap: 44px;
  position: relative;
  z-index: 1;
  align-items: center;
}
.page-about .about-story .section-title {
  color: var(--color-snow);
  margin-top: 10px;
}
.page-about .about-story-lead {
  margin-top: 20px;
  max-width: 440px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--color-track);
}
.page-about .about-story-body {
  margin-top: 18px;
  max-width: 520px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(248, 249, 250, 0.82);
}
.page-about .about-story-body p + p {
  margin-top: 14px;
}
.page-about .about-story-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 26px 44px;
  margin-top: 34px;
  border-top: 1px solid rgba(248, 249, 250, 0.16);
  padding-top: 26px;
}
.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-gold);
  line-height: 1.2;
}
.page-about .about-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: rgba(248, 249, 250, 0.66);
}
.page-about .about-story-media {
  position: relative;
}
.page-about .about-story-media::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 84%;
  height: 84%;
  border: 2px solid rgba(0, 212, 160, 0.55);
  transform: translate(14px, 16px);
  z-index: 0;
  pointer-events: none;
}
.page-about .about-story-img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  clip-path: polygon(0 0, 88% 0, 100% 12%, 100% 100%, 12% 100%, 0 88%);
  filter: saturate(0.92) contrast(1.03);
}
.page-about .about-story-media .annotation {
  position: relative;
  z-index: 1;
  margin-top: 14px;
  color: rgba(248, 249, 250, 0.6);
}

/* ---------- 发展里程碑 ---------- */
.page-about .about-milestones {
  position: relative;
  overflow: hidden;
  background: var(--color-cream);
  color: var(--color-ink);
  padding: 68px 0;
}
.page-about .about-milestones::before {
  content: '';
  position: absolute;
  left: -5%;
  right: -5%;
  top: 0;
  height: 74px;
  background: var(--color-space);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 18% 100%);
  z-index: 0;
}
.page-about .milestone-head {
  position: relative;
  z-index: 2;
  padding-top: 96px;
}
.page-about .milestone-head .section-desc,
.page-about .about-credentials .section-desc {
  color: rgba(26, 26, 26, 0.68);
}
.page-about .milestone-layout {
  position: relative;
  z-index: 2;
  margin-top: 48px;
  min-height: 300px;
}
.page-about .milestone-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.1;
  z-index: 0;
}
.page-about .milestone-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}
.page-about .milestone-list {
  position: relative;
  z-index: 2;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .milestone-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  margin-bottom: 32px;
}
.page-about .milestone-item:last-child {
  margin-bottom: 0;
}
.page-about .milestone-meta {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.page-about .milestone-meta::before {
  content: '';
  position: absolute;
  top: 48px;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--color-gold);
  opacity: 0.32;
  transform: translateX(-50%);
  transition: box-shadow 0.3s;
}
.page-about .milestone-item:last-child .milestone-meta::before {
  bottom: 12px;
}
.page-about .milestone-index {
  position: relative;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  background: rgba(10, 22, 40, 0.92);
  padding: 3px 9px;
  clip-path: polygon(0 0, 100% 0, 92% 100%, 8% 100%);
  margin-bottom: 14px;
}
.page-about .milestone-dot {
  position: relative;
  z-index: 2;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-gold);
  border: 5px solid var(--color-cream);
  box-shadow: 0 0 0 3px var(--color-gold);
  transition: transform 0.25s, box-shadow 0.25s;
}
.page-about .milestone-item:hover .milestone-dot {
  transform: scale(1.14);
  box-shadow: 0 0 0 12px rgba(245, 176, 65, 0.2);
}
.page-about .milestone-item:hover .milestone-meta::before {
  box-shadow: 0 0 18px var(--color-gold);
}
.page-about .milestone-card {
  background: var(--color-cream);
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-left: 4px solid var(--color-track);
  padding: 18px 20px;
  box-shadow: 6px 6px 0 rgba(10, 22, 40, 0.05);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.page-about .milestone-item:hover .milestone-card {
  border-left-color: var(--color-gold);
  box-shadow: 8px 8px 0 rgba(245, 176, 65, 0.22);
  transform: translate(-2px, -2px);
}
.page-about .milestone-card-title {
  font-size: 17px;
  font-weight: 700;
  margin: 8px 0 8px;
  color: var(--color-ink);
  line-height: 1.4;
}
.page-about .milestone-card-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.76);
}

/* ---------- 数据团队与能力 ---------- */
.page-about .about-team {
  background: var(--color-space);
  color: var(--color-snow);
  padding: 68px 0;
}
.page-about .about-team-grid {
  display: grid;
  gap: 44px;
}
.page-about .about-team .section-title {
  color: var(--color-snow);
  margin-top: 10px;
}
.page-about .team-lead {
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(248, 249, 250, 0.82);
  max-width: 520px;
}
.page-about .about-team-media {
  position: relative;
  align-self: end;
}
.page-about .team-img {
  display: block;
  width: 100%;
  height: auto;
  clip-path: polygon(0 0, 100% 0, 100% 84%, 12% 100%, 0 88%);
  filter: saturate(0.95) contrast(1.02);
}
.page-about .about-team-note {
  margin-top: 14px;
  color: rgba(248, 249, 250, 0.58);
  font-size: 12px;
}
.page-about .team-bars {
  margin-top: 32px;
  display: grid;
  gap: 18px;
}
.page-about .bar-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.page-about .bar-label {
  font-size: 14px;
  color: rgba(248, 249, 250, 0.84);
}
.page-about .bar-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-gold);
  white-space: nowrap;
}
.page-about .bar-track {
  height: 8px;
  border-radius: 6px;
  background: rgba(248, 249, 250, 0.12);
  overflow: hidden;
}
.page-about .bar-fill {
  display: block;
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--color-track), var(--color-data));
  position: relative;
  transition: width 0.55s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.page-about .bar-fill--1 { --bar-base: 19%;  --bar-final: 32%; }
.page-about .bar-fill--2 { --bar-base: 16%;  --bar-final: 27%; }
.page-about .bar-fill--3 { --bar-base: 12%;  --bar-final: 20%; }
.page-about .bar-fill--4 { --bar-base: 5.5%; --bar-final: 9%;  }
.page-about .bar-fill--5 { --bar-base: 7.5%; --bar-final: 12%; }
.page-about .bar-fill {
  width: var(--bar-base);
}
.page-about .bar-item:hover .bar-fill {
  width: var(--bar-final);
}
.page-about .bar-fill::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 46px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0.05));
  transform: translateX(-140%) skewX(-20deg);
  transition: transform 0.5s ease;
}
.page-about .bar-item:hover .bar-fill::before {
  transform: translateX(180%) skewX(-20deg);
}
.page-about .team-note {
  margin-top: 28px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(248, 249, 250, 0.6);
  border-left: 3px solid var(--color-gold);
  padding-left: 14px;
}

/* ---------- 资质与认证 ---------- */
.page-about .about-credentials {
  background: var(--color-mist);
  color: var(--color-ink);
  padding: 68px 0;
}
.page-about .about-credentials .section-title {
  color: var(--color-ink);
  margin-top: 10px;
}
.page-about .credential-grid {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}
.page-about .credential-card {
  background: var(--color-cream);
  border: 1px solid rgba(26, 26, 26, 0.06);
  border-top: 4px solid var(--color-track);
  padding: 28px 24px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.page-about .credential-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 12px 12px 0 rgba(10, 22, 40, 0.08);
}
.page-about .credential-icon {
  width: 44px;
  height: 44px;
  display: block;
  margin-bottom: 16px;
}
.page-about .credential-title {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.4;
}
.page-about .credential-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.72);
}

/* ---------- 合作与荣誉 ---------- */
.page-about .about-honors {
  background: var(--color-space);
  color: var(--color-snow);
  padding: 68px 0;
}
.page-about .about-honors .section-title {
  color: var(--color-snow);
  margin-top: 10px;
}
.page-about .about-honors .section-desc,
.page-about .about-team .section-desc {
  color: rgba(248, 249, 250, 0.72);
}
.page-about .honor-grid {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}
.page-about .honor-card {
  background: rgba(248, 249, 250, 0.04);
  border: 1px solid rgba(248, 249, 250, 0.1);
  padding: 30px 26px;
  position: relative;
}
.page-about .honor-card--dark {
  border-top: 3px solid var(--color-gold);
}
.page-about .honor-card--accent {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-ink);
}
.page-about .honor-title {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 14px;
}
.page-about .honor-text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(248, 249, 250, 0.78);
}
.page-about .honor-card--accent .honor-text {
  color: rgba(26, 26, 26, 0.82);
}
.page-about .honor-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}
.page-about .honor-cta {
  margin-top: 44px;
  border-top: 1px solid rgba(248, 249, 250, 0.14);
  padding-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.page-about .honor-cta p {
  margin: 0;
  font-size: 15px;
  color: rgba(248, 249, 250, 0.7);
}
.page-about .honor-cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板适配 ---------- */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 52px 0 68px;
  }
  .page-about .about-hero-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
  }
  .page-about .hero-stat {
    padding: 18px;
  }
  .page-about .about-story,
  .page-about .about-milestones,
  .page-about .about-team,
  .page-about .about-credentials,
  .page-about .about-honors {
    padding: 88px 0;
  }
  .page-about .about-story-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
  }
  .page-about .about-team-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    align-items: center;
  }
  .page-about .about-story-stats {
    gap: 32px 52px;
  }
  .page-about .credential-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .page-about .honor-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .honor-card--accent {
    grid-column: 1 / -1;
  }
  .page-about .honor-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-about .team-note {
    max-width: 560px;
  }
}

/* ---------- 桌面适配 ---------- */
@media (min-width: 1024px) {
  .page-about .page-intro {
    font-size: 17px;
  }
  .page-about .about-story-body {
    font-size: 15px;
  }
  .page-about .about-milestones::before {
    left: 0;
    right: auto;
    top: 0;
    bottom: 0;
    width: 42%;
    height: auto;
    clip-path: polygon(0 0, 100% 0, 54% 100%, 0 100%);
  }
  .page-about .milestone-head {
    margin-left: 42%;
    padding-top: 0;
  }
  .page-about .milestone-item {
    grid-template-columns: 42% 1fr;
    gap: 28px;
  }
  .page-about .milestone-card {
    padding: 24px 28px;
  }
  .page-about .milestone-card-title {
    font-size: 19px;
  }
  .page-about .milestone-card-text {
    font-size: 15px;
  }
  .page-about .about-team-media {
    align-self: center;
  }
  .page-about .bar-track {
    height: 10px;
  }
  .page-about .credential-card {
    padding: 32px 30px;
  }
  .page-about .hero-stat {
    padding: 22px;
  }
}