@charset "UTF-8";
/* 拓账云官网 — 关于页私有样式 */

.about-hero {
  background: linear-gradient(135deg, var(--color-card-start), var(--color-card-end));
  padding: clamp(3rem, 7vw, 4.5rem) 0;
  text-align: center;
}

.about-hero h1 {
  margin-bottom: var(--space-sm);
}

.about-hero .section-lead {
  margin-bottom: 0;
}

.mission-block {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  margin-top: calc(-1 * var(--space-lg));
  position: relative;
  z-index: 1;
}

.mission-block h2 {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.mission-text {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.mission-text strong {
  color: var(--color-title);
}

/* 双栏人设 */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.persona-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}

.persona-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-bright));
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto var(--space-sm);
}

.persona-card h3 {
  margin-bottom: 0.25rem;
}

.persona-card .persona-role {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: var(--space-sm);
}

.persona-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin: 0;
  text-align: left;
}

.persona-card--single {
  max-width: 800px;
  margin: var(--space-xl) auto 0;
  text-align: left;
}

.persona-card--single .persona-card__avatar {
  margin-left: 0;
}

.persona-skills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.persona-skills h4 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .persona-skills {
    grid-template-columns: 1fr;
  }
}

/* 三原则 */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.principle-card {
  background: linear-gradient(135deg, var(--color-card-start), var(--color-card-end));
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}

.principle-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.principle-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.principle-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* 联系三卡 */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.contact-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.contact-card h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-sm);
}

.contact-card p {
  margin: 0 0 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.contact-card a {
  word-break: break-all;
}

@media (max-width: 768px) {
  .persona-grid {
    grid-template-columns: 1fr;
  }

  .principles-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* changelog 时间线（about 页也可能复用类名，主要给 changelog.php） */
.timeline {
  position: relative;
  max-width: 800px;
  margin: var(--space-xl) auto 0;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-lg);
  padding-left: var(--space-lg);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.65rem;
  top: 0.35rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
}

.timeline-card__header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.timeline-card__version {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-title);
}

.timeline-card__date {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.timeline-card h4 {
  font-size: 0.9375rem;
  margin: var(--space-sm) 0 0.35rem;
  color: var(--color-title);
}

.timeline-card ul {
  list-style: disc;
  padding-left: 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin: 0;
}

.timeline-card li {
  margin-bottom: 0.25rem;
}