/* ==========================================================================
   关于页
   ========================================================================== */

.about-hero {
  padding-top: 180px;
  padding-bottom: 120px;
  background: var(--color-bg-alt);
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(184, 147, 92, 0.15), transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
}

.about-story {
  background: var(--color-bg);
}

.about-story-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: start;
}

@media (max-width: 1024px) {
  .about-story-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.about-story-num {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 100px;
}

.about-year {
  font-family: var(--font-display);
  font-size: clamp(80px, 8vw, 140px);
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold-deep);
  line-height: 0.9;
  letter-spacing: var(--tracking-tight);
}

.about-year-tag {
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  color: var(--color-muted);
}

.about-story-content .h2 {
  margin-bottom: 32px;
}

.about-story-content .h2 em {
  font-style: italic;
  font-family: var(--font-display);
  color: var(--color-gold-deep);
  font-weight: 400;
  font-size: 0.65em;
}

.about-story-content .body-lg {
  margin-bottom: 24px;
  font-size: var(--fs-md);
  line-height: 1.85;
}

.about-story-content strong {
  color: var(--color-ink);
  font-weight: 500;
}

/* ---------- 价值观 ---------- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

@media (max-width: 640px) {
  .values-grid {
    grid-template-columns: 1fr;
  }
}

.value-card {
  background: var(--color-surface);
  padding: 48px 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  transition: all var(--duration-base) var(--ease-out);
}

.value-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.value-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold-deep);
  line-height: 1;
  margin-bottom: 24px;
}

.value-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.value-desc {
  font-size: var(--fs-base);
  line-height: 1.8;
  color: var(--color-text);
}

.value-desc strong {
  color: var(--color-ink);
  font-weight: 500;
}

/* ---------- 客户类别 ---------- */
.client-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

@media (max-width: 640px) {
  .client-categories {
    grid-template-columns: 1fr;
  }
}

.client-category {
  background: var(--color-surface);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
}

.client-category h4 {
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

.client-category p {
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--color-text);
}

/* ---------- 团队 ---------- */
.team-quote {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.7;
  color: var(--color-text);
  font-style: italic;
}

.team-quote strong {
  color: var(--color-ink);
  font-weight: 500;
  font-style: normal;
}

/* ---------- 招聘 ---------- */
.careers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

@media (max-width: 1024px) {
  .careers-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

.careers-content .h2 {
  margin: 16px 0 24px;
}

.careers-content .lead {
  margin-bottom: 32px;
}

.careers-positions {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.careers-item {
  background: var(--color-surface);
  padding: 24px 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  transition: all var(--duration-base) var(--ease-out);
  cursor: pointer;
}

.careers-item:hover {
  border-color: var(--color-gold);
  background: var(--color-bg-alt);
}

.careers-item h4 {
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.careers-item p {
  font-size: var(--fs-sm);
  color: var(--color-muted);
}

/* ---------- 发展历程时间线 ---------- */
.about-timeline {
  background: var(--color-bg-alt);
}

.about-timeline .section-head {
  margin-bottom: 64px;
}

.timeline {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  padding-left: 60px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg,
    transparent 0%,
    var(--color-gold) 8%,
    var(--color-gold) 92%,
    transparent 100%);
}

.timeline-item {
  position: relative;
  padding-bottom: 56px;
}

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

.timeline-item::before {
  content: "";
  position: absolute;
  left: -48px;
  top: 8px;
  width: 16px;
  height: 16px;
  background: var(--color-bg);
  border: 3px solid var(--color-gold);
  border-radius: 50%;
  z-index: 1;
}

.timeline-current::before {
  background: var(--color-gold);
  box-shadow: 0 0 0 6px rgba(184, 147, 92, 0.2);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 6px rgba(184, 147, 92, 0.2); }
  50% { box-shadow: 0 0 0 12px rgba(184, 147, 92, 0); }
}

.timeline-year {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold-deep);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: var(--tracking-tight);
}

.timeline-current .timeline-year {
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.timeline-title {
  font-family: var(--font-serif);
  font-size: var(--fs-xl);
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: var(--fs-base);
  line-height: 1.85;
  color: var(--color-text);
  margin-bottom: 12px;
  max-width: 640px;
}

.timeline-desc strong {
  color: var(--color-ink);
  font-weight: 500;
}

.timeline-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--color-muted);
  border-radius: 999px;
}

.timeline-tag-current {
  background: var(--color-gold);
  color: var(--color-bg);
  border-color: var(--color-gold);
}

@media (max-width: 640px) {
  .timeline {
    padding-left: 40px;
  }
  .timeline::before { left: 8px; }
  .timeline-item::before { left: -36px; width: 12px; height: 12px; }
}

/* ---------- 团队卡片 ---------- */
.about-team .section-head {
  margin-bottom: 56px;
}

.about-team .section-head .lead {
  max-width: 720px;
  margin: 16px auto 0;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 64px;
}

@media (max-width: 1024px) {
  .team-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .team-grid { grid-template-columns: 1fr; }
}

.team-card {
  background: var(--color-surface);
  padding: 36px 28px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  text-align: center;
  transition: all var(--duration-base) var(--ease-out);
}

.team-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.team-avatar {
  width: 88px;
  height: 88px;
  margin: 0 auto 20px;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-deep) 100%);
}

.team-avatar-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 500;
  font-style: italic;
  color: var(--color-bg);
  background: var(--color-bg);
}

.team-avatar-1 { background: linear-gradient(135deg, #B8935C 0%, #8B6438 100%); }
.team-avatar-2 { background: linear-gradient(135deg, #D4814E 0%, #A65A2E 100%); }
.team-avatar-3 { background: linear-gradient(135deg, #6B7280 0%, #374151 100%); }
.team-avatar-4 { background: linear-gradient(135deg, #8B5A3C 0%, #5C3A26 100%); }
.team-avatar-5 { background: linear-gradient(135deg, #C9A876 0%, #8B7355 100%); }
.team-avatar-6 { background: linear-gradient(135deg, #4A5568 0%, #2D3748 100%); }

.team-name {
  font-family: var(--font-serif);
  font-size: var(--fs-xl);
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 4px;
  letter-spacing: 2px;
}

.team-role {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-gold-deep);
  letter-spacing: var(--tracking-wider);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.team-bio {
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--color-text);
  margin-bottom: 16px;
}

.team-tags {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.team-tags span {
  display: inline-block;
  padding: 3px 10px;
  background: var(--color-bg-alt);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-full);
}