.page-about {
  --about-card-bg: linear-gradient(145deg, rgba(30, 30, 42, 0.85), rgba(18, 18, 26, 0.95));
  position: relative;
  background: linear-gradient(180deg, #0E0E16 0%, #12121A 30%, #0C0C12 100%);
  color: var(--color-rice);
  overflow-x: hidden;
}

.about-breadcrumb {
  padding-top: 1.25rem;
}

/* ===== Hero ===== */
.about-hero {
  position: relative;
  display: flex;
  align-items: center;
  padding: clamp(3.5rem, 9vw, 6.5rem) 0 clamp(3rem, 6vw, 5rem);
  min-height: auto;
}

.about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 20%, rgba(123, 12, 27, 0.5), transparent 42%),
    radial-gradient(circle at 85% 15%, rgba(212, 175, 55, 0.08), transparent 36%),
    radial-gradient(circle at 70% 85%, rgba(92, 122, 92, 0.06), transparent 40%);
  pointer-events: none;
  z-index: 0;
}

.about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold) 28%, var(--color-china-red) 68%, transparent);
  opacity: 0.5;
  z-index: 0;
}

.about-hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.about-hero-slant {
  position: absolute;
  top: 0;
  right: -12%;
  width: 58%;
  height: 100%;
  background: repeating-linear-gradient(-45deg, rgba(212, 175, 55, 0.03) 0 2px, transparent 2px 16px);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
}

.about-hero-cloud {
  position: absolute;
  top: 12%;
  right: 4%;
  width: 56%;
  height: 42%;
  opacity: 0.55;
}

.about-hero-cloud svg {
  width: 100%;
  height: 100%;
  display: block;
}

.about-hero-grid {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.about-hero-main {
  max-width: 100%;
}

.about-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1.25rem;
}

.about-hero-kicker::before {
  content: "";
  width: 34px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), transparent);
}

.about-hero-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2.05rem, 8vw, 3.6rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--color-rice);
  margin: 0 0 1.25rem;
}

.about-text-gold {
  color: var(--color-gold);
}

.about-hero-lead {
  font-size: 1.05rem;
  line-height: 1.85;
  color: rgba(245, 240, 225, 0.8);
  max-width: 44rem;
  margin: 0;
}

.about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 1.75rem;
}

.about-hero-score {
  display: none;
}

/* ===== 品牌定位 ===== */
.about-brand {
  position: relative;
  padding: 4.5rem 0 5rem;
}

.about-brand::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.25) 40%, rgba(212, 175, 55, 0.25) 60%, transparent);
}

.about-brand-lead {
  max-width: 54rem;
  margin-top: 1.5rem;
  font-size: 1.05rem;
  line-height: 1.95;
  color: rgba(245, 240, 225, 0.78);
}

.about-brand-lead p {
  margin: 0 0 0.75em;
}

.about-brand-lead p:last-child {
  margin-bottom: 0;
}

.about-brand-cards {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.about-brand-card {
  position: relative;
  background: var(--about-card-bg);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem 1.75rem;
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.about-brand-card:hover {
  border-color: rgba(212, 175, 55, 0.55);
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.about-brand-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.75rem;
  width: 56px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-china-red));
}

.about-brand-card-index {
  position: absolute;
  top: 1.1rem;
  right: 1.4rem;
  font-family: var(--font-num);
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(212, 175, 55, 0.14);
}

.about-brand-card h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: var(--color-gold);
  margin: 0 0 0.75rem;
}

.about-brand-card p,
.about-brand-list {
  font-size: 0.95rem;
  color: rgba(245, 240, 225, 0.78);
  line-height: 1.8;
}

.about-brand-card p {
  margin: 0;
}

.about-brand-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-brand-list li {
  padding: 0.28rem 0;
}

.about-brand-list strong {
  color: var(--color-gold-light);
}

/* ===== 发展历程 ===== */
.about-journey {
  padding: 4.5rem 0 5rem;
  position: relative;
}

.about-journey::before {
  content: "始于2015";
  position: absolute;
  right: -2rem;
  top: 2rem;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(3.5rem, 9vw, 7rem);
  letter-spacing: 0.06em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(212, 175, 55, 0.08);
  z-index: 0;
  pointer-events: none;
  white-space: nowrap;
}

.about-journey .container {
  position: relative;
  z-index: 1;
}

.about-journey-lead {
  margin: 2.5rem 0 0;
  max-width: 30rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(212, 175, 55, 0.22);
  position: relative;
  background: rgba(18, 18, 26, 0.6);
}

.about-journey-lead img {
  width: 100%;
  height: auto;
  display: block;
}

.about-journey-lead .figure-figcaption {
  padding: 0.8rem 1rem;
  background: linear-gradient(180deg, rgba(18, 18, 26, 0.85), rgba(18, 18, 26, 1));
  font-size: 0.88rem;
}

.about-timeline {
  position: relative;
  margin-top: 3rem;
}

.about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-gold) 0%, var(--color-deep-red) 55%, rgba(212, 175, 55, 0.15) 100%);
}

.about-timeline-item {
  position: relative;
  padding-left: 2.75rem;
  margin-bottom: 2.25rem;
}

.about-timeline-marker {
  position: absolute;
  left: 2px;
  top: 1.1rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-gold);
  border: 3px solid var(--color-night);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.22), 0 0 16px rgba(212, 175, 55, 0.5);
  z-index: 2;
}

.about-timeline-marker.is-current-node {
  background: var(--color-china-red);
  box-shadow: 0 0 0 4px rgba(230, 0, 18, 0.2), 0 0 18px rgba(230, 0, 18, 0.6);
}

.about-timeline-card {
  background: var(--about-card-bg);
  border: 1px solid rgba(212, 175, 55, 0.18);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.5rem 1.75rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.about-timeline-card:hover {
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: var(--shadow-gold);
  transform: translateY(-3px);
}

.about-timeline-year {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 2.55rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--color-gold);
  margin-bottom: 0.9rem;
}

.about-timeline-card h3 {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  color: var(--color-rice);
  margin: 0 0 0.5rem;
}

.about-timeline-card p {
  font-size: 0.93rem;
  line-height: 1.8;
  color: rgba(245, 240, 225, 0.72);
  margin: 0;
}

/* ===== 数据能力 ===== */
.about-data {
  padding: 4.5rem 0 5rem;
  background:
    radial-gradient(circle at 85% 20%, rgba(123, 12, 27, 0.38), transparent 45%),
    linear-gradient(180deg, rgba(18, 18, 26, 0.4), rgba(12, 12, 18, 0.7));
  border-block: 1px solid rgba(212, 175, 55, 0.12);
}

.about-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.875rem;
  margin-top: 2.5rem;
}

.about-stat-card {
  position: relative;
  background: linear-gradient(160deg, rgba(30, 30, 42, 0.9), rgba(18, 18, 26, 0.9));
  border: 1px solid rgba(212, 175, 55, 0.16);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.about-stat-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(212, 175, 55, 0.1), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.about-stat-card:hover {
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: var(--shadow-gold);
  transform: translateY(-5px);
}

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

.about-stat-num {
  display: block;
  font-family: var(--font-num);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-gold);
}

.about-stat-num small {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-china-red);
  margin-left: 0.1em;
}

.about-stat-label {
  display: block;
  margin-top: 0.6rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-rice);
}

.about-stat-desc {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-rock);
}

.about-worldmap {
  max-width: 56rem;
  margin: 3rem auto 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(212, 175, 55, 0.2);
  background: rgba(18, 18, 26, 0.6);
}

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

.about-worldmap .figure-figcaption,
.about-team-figure .figure-figcaption {
  padding: 0.8rem 1rem;
  font-size: 0.9rem;
}

.about-tool-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.about-tool-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: rgba(18, 18, 26, 0.55);
  border: 1px solid rgba(212, 175, 55, 0.15);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.about-tool-card:hover {
  border-color: rgba(212, 175, 55, 0.45);
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.about-tool-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  margin-bottom: 1rem;
  color: var(--color-gold);
  background: rgba(212, 175, 55, 0.08);
  border: 1px solid rgba(212, 175, 55, 0.25);
}

.about-tool-icon svg {
  width: 24px;
  height: 24px;
}

.about-tool-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--color-rice);
  margin: 0 0 0.5rem;
}

.about-tool-card p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(245, 240, 225, 0.72);
  margin: 0;
}

/* ===== 荣誉与合作 ===== */
.about-honor {
  padding: 4.5rem 0 5rem;
}

.about-award-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.about-award-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: linear-gradient(180deg, rgba(43, 32, 32, 0.5), rgba(18, 18, 26, 0.8));
  border: 1px solid rgba(212, 175, 55, 0.18);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.about-award-card:hover {
  border-color: rgba(212, 175, 55, 0.55);
  box-shadow: var(--shadow-gold);
  transform: translateY(-4px);
}

.about-award-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  color: var(--color-gold);
  background: radial-gradient(circle at 30% 30%, rgba(212, 175, 55, 0.2), rgba(123, 12, 27, 0.4));
  border: 1px solid rgba(212, 175, 55, 0.35);
  margin-bottom: 1.25rem;
  transition: transform 0.5s ease;
}

.about-award-card:hover .about-award-icon {
  transform: rotate(14deg) scale(1.08);
}

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

.about-award-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-gold);
  margin: 0 0 0.6rem;
}

.about-award-card p {
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(245, 240, 225, 0.72);
  margin: 0;
}

.about-team-figure {
  max-width: 48rem;
  margin: 3rem auto 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(212, 175, 55, 0.2);
  background: rgba(18, 18, 26, 0.6);
}

.about-team-figure img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== 服务承诺 ===== */
.about-promise {
  margin: 0.5rem 0 4rem;
  padding: 3rem 1.5rem;
  background:
    linear-gradient(135deg, rgba(123, 12, 27, 0.55), rgba(18, 18, 26, 0.9)),
    repeating-linear-gradient(-45deg, rgba(212, 175, 55, 0.02) 0 2px, transparent 2px 12px);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
}

.about-promise-title {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  color: var(--color-gold);
  margin: 0 0 0.75rem;
}

.about-promise-intro {
  max-width: 44rem;
  margin: 0.5rem auto 0;
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(245, 240, 225, 0.78);
}

.about-promise-list {
  max-width: 36rem;
  margin: 1.75rem auto 2.25rem;
  padding: 0;
  list-style: none;
  text-align: left;
}

.about-promise-list li {
  position: relative;
  padding: 0.65rem 0 0.65rem 2rem;
  color: rgba(245, 240, 225, 0.85);
  font-size: 0.95rem;
  line-height: 1.7;
  border-bottom: 1px dashed rgba(212, 175, 55, 0.22);
}

.about-promise-list li:last-child {
  border-bottom: none;
}

.about-promise-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.15rem;
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-gold);
  border-radius: 50%;
  background: var(--color-night);
}

.about-promise-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.875rem;
}

@keyframes about-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .about-brand-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-brand-card:last-child {
    grid-column: 1 / -1;
  }
  .about-stat-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .about-tool-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .about-award-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .about-hero {
    min-height: calc(100vh - 90px);
  }
  .about-hero-grid {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }
  .about-hero-main {
    flex: 1 1 auto;
  }
  .about-hero-title {
    font-size: clamp(2.4rem, 5.2vw, 4.2rem);
  }
  .about-hero-score {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 0 0 210px;
    height: 210px;
    border-radius: 50%;
    border: 1px solid rgba(212, 175, 55, 0.35);
    background: radial-gradient(circle at 30% 30%, rgba(212, 175, 55, 0.14), rgba(123, 12, 27, 0.25));
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.12);
    text-align: center;
    position: relative;
  }
  .about-hero-score::before {
    content: "";
    position: absolute;
    inset: 10px;
    border-radius: 50%;
    border: 1px dashed rgba(212, 175, 55, 0.3);
    animation: about-spin 36s linear infinite;
  }
  .about-hero-score-num {
    font-family: var(--font-num);
    font-weight: 700;
    font-size: 4.2rem;
    line-height: 1;
    color: var(--color-gold);
  }
  .about-hero-score-label {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    letter-spacing: 0.22em;
    color: rgba(245, 240, 225, 0.7);
  }
  .about-hero-lead {
    font-size: 1.1rem;
  }
  .about-brand-cards {
    grid-template-columns: repeat(3, 1fr);
  }
  .about-brand-card:last-child {
    grid-column: auto;
  }
  .about-journey-lead {
    margin-left: 0;
  }
}

@media (min-width: 900px) {
  .about-timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }
  .about-timeline-item {
    padding-left: 0;
    margin-bottom: 3rem;
  }
  .about-timeline-card {
    width: calc(50% - 3.5rem);
    padding: 2rem;
  }
  .about-timeline-item:nth-child(odd) .about-timeline-card {
    margin-right: auto;
    margin-left: 0;
  }
  .about-timeline-item:nth-child(even) .about-timeline-card {
    margin-left: auto;
    margin-right: 0;
  }
  .about-timeline-marker {
    left: 50%;
    top: 1.5rem;
    transform: translateX(-50%);
  }
}

@media (min-width: 1024px) {
  .about-stat-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}