/* ========================================
   about.css — 关于我们页面专属样式
   区块：Hero → 创始人介绍 → 团队 → 加入团队 → 价值观(8项) → 流程(手风琴) → 评价 → CTA
   ======================================== */

/* ===== Hero 区 ===== */
.about-hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0.55) 100%),
              url('../../assets/images/about/hero-bg.png') center / cover no-repeat;
  color: #fff;
  padding-block: var(--space-2xl);
}

.about-hero__inner {
  max-width: 620px;
  margin-inline-end: 8%;
  padding-inline: var(--space-md);
}

.about-hero__subtitle {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-block-end: var(--space-md);
}

.about-hero__title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  color: #fff;
  margin-block-end: var(--space-lg);
  line-height: 1.08;
}

.about-hero__desc {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
}

@media (max-width: 767px) {
  .about-hero {
    justify-content: center;
    text-align: center;
    min-height: 70vh;
  }
  .about-hero__inner {
    margin-inline: auto;
  }
}

/* ===== 创始人介绍区 =====
   左文右图，复用 home.css 的 .about-layout */
.about-intro {
  padding-block: var(--space-2xl);
}

.about-intro__founder {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  margin-block-end: var(--space-sm);
}

.about-intro__name {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-block-end: var(--space-lg);
  line-height: 1.15;
}

.about-layout__text p {
  color: var(--color-text-light);
  font-size: 1rem;
  line-height: 1.7;
  margin-block-end: var(--space-md);
}

.about-layout__text p:last-child {
  margin-block-end: 0;
}

/* ===== 团队成员区 ===== */
.about-team {
  background-color: var(--color-bg-alt);
  padding-block: var(--space-2xl);
}

.about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 576px) {
  .about-team__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) {
  .about-team__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 992px) {
  .about-team__grid { grid-template-columns: repeat(4, 1fr); }
}

/* 团队卡片 — 姓氏缩写圆 + 姓名 + 职位 + 简介 */
.team-card {
  text-align: center;
  padding: var(--space-lg);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

/* 团队照片 — 圆形头像 */
.team-card__photo {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 15%;
  margin-inline: auto;
  margin-block-end: var(--space-md);
}

/* 姓氏缩写圆圈 — 替代头像图片 */
.team-card__initials {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-block-end: var(--space-md);
}

.team-card__name {
  font-weight: 700;
  font-size: 1.0625rem;
  margin-block-end: var(--space-xs);
}

.team-card__role {
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 500;
  margin-block-end: var(--space-sm);
}

.team-card__bio {
  color: var(--color-text-light);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-block-end: 0;
}

/* ===== 加入团队 CTA ===== */
.about-join {
  padding-block: var(--space-2xl);
}

.about-join__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 992px) {
  .about-join__layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

.about-join__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-block-end: var(--space-md);
  line-height: 1.15;
}

.about-join__text {
  color: var(--color-text-light);
  font-size: 1rem;
  line-height: 1.7;
  margin-block-end: var(--space-xl);
}

.about-join__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
}

.about-join__email {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-base);
}

.about-join__email:hover {
  color: var(--color-primary-dark);
}

.about-join__image img {
  width: 100%;
  height: 100%;
  min-height: 350px;
  object-fit: cover;
  border-radius: var(--radius);
}

/* ===== 核心价值观区 ===== */
.about-values {
  background-color: var(--color-bg);
  padding-block: var(--space-2xl);
}

/* Mission & Vision — 两列居中 */
.about-values__mission {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  max-width: 800px;
  margin-inline: auto;
  margin-block-end: var(--space-2xl);
  text-align: center;
}

@media (min-width: 768px) {
  .about-values__mission {
    grid-template-columns: repeat(2, 1fr);
  }
}

.about-values__mission-title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  color: var(--color-primary);
  margin-block-end: var(--space-sm);
}

.about-values__mission-text {
  color: var(--color-text-light);
  font-size: 1rem;
  line-height: 1.7;
  margin-block-end: 0;
}

/* 8 项价值观网格 — 4 列 */
.about-values__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  text-align: center;
}

@media (min-width: 576px) {
  .about-values__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) {
  .about-values__grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 992px) {
  .about-values__grid { grid-template-columns: repeat(4, 1fr); }
}

.about-value {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.about-value__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.about-value__icon svg {
  width: 28px;
  height: 28px;
}

.about-value__title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
}

.about-value__text {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 280px;
  margin-block-end: 0;
}

/* ===== 流程手风琴 =====
   8 步可展开列表，与参考站 Process 区对应 */
.about-process {
  background-color: var(--color-bg-alt);
  padding-block: var(--space-2xl);
}

.about-process__list {
  max-width: 800px;
  margin-inline: auto;
}

.about-process__item {
  border-block-end: 1px solid var(--color-border);
}

.about-process__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-base);
}

.about-process__header::-webkit-details-marker {
  display: none;
}

.about-process__number {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  color: var(--color-primary);
  min-width: 2.5rem;
}

.about-process__name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  flex: 1;
}

.about-process__arrow {
  transition: transform var(--transition-base);
  color: var(--color-text-light);
}

.about-process__item[open] .about-process__arrow {
  transform: rotate(180deg);
}

.about-process__text {
  padding: 0 0 var(--space-lg) 3.5rem;
  color: var(--color-text-light);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-block-end: 0;
}

.about-process__header:hover {
  color: var(--color-primary);
}

/* ===== 评价区 =====
   复用 home.css 的 .testimonials-list 和 .testimonial */

/* ===== 底部 CTA ===== */
.about-cta {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
  text-align: center;
  padding-block: var(--space-2xl);
}

.about-cta__title {
  color: #fff;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-block-end: var(--space-md);
}

.about-cta__subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.0625rem;
  max-width: 560px;
  margin-inline: auto;
  margin-block-end: var(--space-xl);
  line-height: 1.7;
}