.page-about{
  --about-gold-soft: rgba(233,196,106,0.15);
  --about-gold-line: rgba(233,196,106,0.44);
  --about-deep-glass: rgba(6,41,29,0.78);
  --about-cream-soft: rgba(247,243,233,0.78);
}

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

/* ===== 页面头部 ===== */
.page-about .about-hero{
  position: relative;
  overflow: hidden;
  padding-top: 120px;
  padding-bottom: 72px;
}

.page-about .about-hero-inner{
  position: relative;
  z-index: 2;
}

.page-about .about-hero .bg-score{
  top: -0.06em;
  right: -0.04em;
  color: rgba(233,196,106,0.08);
  font-size: clamp(9rem, 28vw, 22rem);
}

.page-about .about-hero-arc{
  position: absolute;
  width: 360px;
  height: 360px;
  right: -80px;
  bottom: -120px;
  border: 1px solid var(--about-gold-line);
  border-radius: 50%;
  box-shadow: 0 0 0 56px rgba(233,196,106,0.05), 0 0 0 112px rgba(233,196,106,0.03);
  pointer-events: none;
  z-index: 1;
}

.page-about .breadcrumb{
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: rgba(247,243,233,0.55);
  font-size: 0.875rem;
  margin-bottom: 32px;
}

.page-about .breadcrumb a{
  color: var(--gold);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.page-about .breadcrumb a:hover{
  color: var(--gold-bright);
}

.page-about .breadcrumb-arrow{
  color: rgba(247,243,233,0.35);
}

.page-about .about-hero-kicker{
  color: var(--gold);
}

.page-about .about-hero-title{
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--cream);
  max-width: 12em;
  margin: 14px 0 20px;
}

.page-about .about-hero-desc{
  max-width: 44em;
  color: var(--about-cream-soft);
  line-height: 1.8;
  margin-bottom: 24px;
}

.page-about .about-hero-meta{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--gold);
  padding: 10px 18px;
  border: 1px solid var(--about-gold-line);
  border-radius: var(--radius-pill);
  background: rgba(10,61,46,0.32);
  backdrop-filter: blur(8px);
}

/* ===== 品牌简介 ===== */
.page-about .about-intro-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}

.page-about .about-intro-copy .section-heading{
  margin-bottom: 8px;
}

.page-about .about-intro-copy p{
  margin: 16px 0;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.8;
}

.page-about .about-mission-label{
  color: var(--green-deep);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-about .about-intro-stats{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 8px;
}

.page-about .about-stat{
  padding: 20px 12px;
  border-radius: var(--radius-md);
  text-align: center;
}

.page-about .about-stat .stat-label{
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.page-about .about-stat .stat-value{
  font-size: 1.5rem;
  line-height: 1.1;
}

/* ===== 发展里程碑 ===== */
.page-about .about-milestone{
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 90% 10%, rgba(233,196,106,0.12), transparent 280px),
    linear-gradient(180deg, var(--green-night) 0%, var(--green-deep) 45%, var(--green-night) 100%);
}

.page-about .about-milestone::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(233,196,106,0.14) 1px, transparent 1.4px);
  background-size: 24px 24px;
  pointer-events: none;
  opacity: 0.7;
}

.page-about .about-milestone .container{
  position: relative;
  z-index: 2;
}

.page-about .about-section-head{
  margin-bottom: 48px;
}

.page-about .about-section-head .section-heading{
  margin: 8px 0;
}

.page-about .about-section-desc{
  color: var(--text-soft);
  max-width: 36em;
  line-height: 1.6;
  margin: 8px 0 0;
}

.page-about .about-milestone .about-section-desc{
  color: rgba(247,243,233,0.6);
}

.page-about .about-milestone .index-num{
  color: var(--gold);
}

.page-about .milestone-wrap{
  position: relative;
  max-width: 960px;
  margin: 0 auto;
}

.page-about .milestone-line{
  position: absolute;
  top: 0;
  bottom: 0;
  left: 12px;
  width: 2px;
  background: linear-gradient(180deg, rgba(233,196,106,0.1), var(--gold) 8%, var(--gold) 92%, rgba(233,196,106,0.1));
  transform: translateX(-1px);
}

.page-about .milestone-item{
  position: relative;
  margin-bottom: var(--space-5);
  padding-left: 44px;
}

.page-about .milestone-dot{
  position: absolute;
  left: 4px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--gold-bright);
  border: 3px solid var(--green-night);
  box-shadow: 0 0 0 4px rgba(233,196,106,0.2);
}

.page-about .milestone-card{
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--about-gold-line);
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(10,61,46,0.82), rgba(6,41,29,0.76));
  backdrop-filter: blur(10px);
}

.page-about .milestone-big-year{
  position: absolute;
  top: -18px;
  right: -2px;
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 6.5rem);
  font-weight: 800;
  line-height: 1;
  color: rgba(233,196,106,0.09);
  pointer-events: none;
}

.page-about .milestone-card h3{
  position: relative;
  z-index: 1;
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 1.2rem;
  font-weight: 500;
}

.page-about .milestone-year-tag{
  display: inline-block;
  margin-right: 6px;
  color: var(--gold-bright);
  font-variant-numeric: tabular-nums;
}

.page-about .milestone-card p{
  position: relative;
  z-index: 1;
  margin: 8px 0;
  color: rgba(247,243,233,0.76);
  line-height: 1.7;
  font-size: 0.95rem;
}

.page-about .milestone-details{
  position: relative;
  z-index: 1;
  margin-top: 14px;
  border-top: 1px solid rgba(233,196,106,0.2);
}

.page-about .milestone-details summary{
  list-style: none;
  cursor: pointer;
  padding: 12px 0 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-size: 0.875rem;
}

.page-about .milestone-details summary::-webkit-details-marker{
  display: none;
}

.page-about .milestone-details summary::before{
  content: "+";
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold);
  border-radius: 50%;
  font-size: 0.75rem;
  line-height: 1;
  transition: transform var(--duration) var(--ease);
}

.page-about .milestone-details[open] summary::before{
  transform: rotate(45deg);
}

.page-about .milestone-details-body{
  padding: 4px 0 6px;
  color: rgba(247,243,233,0.62);
  font-size: 0.875rem;
  line-height: 1.7;
}

.page-about .milestone-item--figure{
  padding-left: 0;
  margin: 40px 0 48px;
}

.page-about .milestone-item--figure img{
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px rgba(0,0,0,0.35);
}

.page-about .milestone-item--figure figcaption{
  margin-top: 10px;
  text-align: center;
  color: rgba(247,243,233,0.6);
  font-size: 0.85rem;
}

/* ===== 团队构成 ===== */
.page-about .about-team{
  background: var(--cream);
}

.page-about .about-team-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-about .about-team-copy p{
  color: var(--ink);
  line-height: 1.8;
}

.page-about .about-team-note{
  font-size: 0.9rem;
  color: var(--text-soft);
  border-left: 2px solid var(--gold);
  padding-left: 14px;
  margin-top: 20px;
}

.page-about .team-bars{
  margin: 24px 0;
}

.page-about .team-bar-row{
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  align-items: center;
  margin-bottom: 18px;
}

.page-about .team-bar-label{
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink);
}

.page-about .team-bar-num{
  font-size: 0.85rem;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  transition: color var(--duration) var(--ease);
}

.page-about .team-bar-track{
  grid-column: 1 / -1;
  height: 7px;
  background: rgba(26,107,79,0.14);
  border-radius: 99px;
  overflow: hidden;
}

.page-about .team-bar-fill{
  display: block;
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--green-deep), var(--green-secondary));
  transition: width var(--duration) var(--ease), background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.page-about .team-bar-fill--content{
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
}

.page-about .team-bar-fill--product{
  background: linear-gradient(90deg, var(--green-secondary), var(--gold-bright));
}

.page-about .team-bar-row:hover .team-bar-fill{
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
  box-shadow: 0 0 14px rgba(255,215,0,0.4);
}

.page-about .team-bar-row:hover .team-bar-num{
  color: var(--gold-bright);
  font-weight: 600;
}

.page-about .about-team-figure{
  position: relative;
  padding: 10px;
  background: linear-gradient(135deg, rgba(233,196,106,0.35), rgba(26,107,79,0.18));
  border-radius: calc(var(--radius-lg) + 4px);
}

.page-about .about-team-figure img{
  width: 100%;
  border-radius: var(--radius-lg);
}

.page-about .about-team-figure figcaption,
.page-about .about-partners-figure figcaption{
  margin-top: 10px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-soft);
}

/* ===== 资质与安全管理 ===== */
.page-about .about-security{
  background: var(--green-soft);
}

.page-about .security-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .security-card{
  padding: 26px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(233,196,106,0.5);
  border-left-width: 3px;
  background: rgba(247,243,233,0.72);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-about .security-icon{
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(10,61,46,0.08);
}

.page-about .security-icon svg{
  width: 34px;
  height: 34px;
}

.page-about .security-card h3{
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--green-deep);
}

.page-about .security-card p{
  margin: 0;
  color: var(--ink);
  line-height: 1.7;
  font-size: 0.95rem;
}

/* ===== 合作伙伴与渠道 ===== */
.page-about .about-partners-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.page-about .about-partners-copy > p{
  color: var(--ink);
  line-height: 1.8;
}

.page-about .partner-list{
  list-style: none;
  margin: 24px 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .partner-item{
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  background: var(--green-soft);
  border-radius: var(--radius-md);
  border-left: 2px solid var(--gold);
}

.page-about .partner-point{
  width: 10px;
  height: 10px;
  margin-top: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(233,196,106,0.2);
}

.page-about .partner-item strong{
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: var(--green-deep);
}

.page-about .partner-item p{
  margin: 0;
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-about .about-partners-note{
  font-size: 0.85rem;
  color: var(--text-soft);
  border-top: 1px solid rgba(26,107,79,0.12);
  padding-top: 14px;
  margin-top: 24px;
}

.page-about .about-partners-figure{
  padding: 10px;
  border-radius: calc(var(--radius-lg) + 4px);
  background: linear-gradient(135deg, rgba(26,107,79,0.18), rgba(233,196,106,0.32));
}

.page-about .about-partners-figure img{
  width: 100%;
  border-radius: var(--radius-lg);
}

/* ===== 继续浏览 ===== */
.page-about .about-connect{
  background:
    radial-gradient(circle at 85% 20%, rgba(233,196,106,0.14), transparent 260px),
    var(--green-night);
}

.page-about .about-connect .section-heading{
  color: var(--cream);
}

.page-about .about-connect-inner{
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

.page-about .about-connect-copy p{
  margin: 12px 0 0;
  color: rgba(247,243,233,0.72);
  line-height: 1.7;
}

.page-about .about-connect-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 桌面端 ===== */
@media (min-width: 900px){
  .page-about .about-hero{
    padding-top: 140px;
    padding-bottom: 88px;
  }

  .page-about .about-intro-grid{
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 48px;
  }

  .page-about .about-intro-stats{
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 24px;
  }

  .page-about .about-stat{
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px;
  }

  .page-about .about-stat .stat-value{
    font-size: 1.8rem;
  }

  .page-about .about-milestone .milestone-wrap{
    padding-top: var(--space-5);
  }

  .page-about .milestone-line{
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .milestone-item{
    width: calc(50% - 52px);
    padding-left: 0;
  }

  .page-about .milestone-item:not(.milestone-item--reverse){
    margin-right: auto;
  }

  .page-about .milestone-item.milestone-item--reverse{
    margin-left: auto;
  }

  .page-about .milestone-item .milestone-dot{
    left: auto;
    right: auto;
    top: 20px;
    width: 20px;
    height: 20px;
  }

  .page-about .milestone-item:not(.milestone-item--reverse) .milestone-dot{
    right: -60px;
  }

  .page-about .milestone-item.milestone-item--reverse .milestone-dot{
    left: -60px;
  }

  .page-about .milestone-item--figure{
    width: 100%;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 48px;
    margin-bottom: 56px;
  }

  .page-about .milestone-item--figure .milestone-dot{
    display: none;
  }

  .page-about .about-team-grid{
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 48px;
    align-items: center;
  }

  .page-about .about-team-copy{
    order: 2;
  }

  .page-about .about-team-figure{
    order: 1;
  }

  .page-about .security-grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-partners-grid{
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    gap: 48px;
  }

  .page-about .about-connect-inner{
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
  }
}