/* ===== 页面专属：品牌概况 ===== */
.page-about {
  --clr-accent-soft: rgba(255, 111, 0, 0.12);
  --clr-sky-soft: rgba(74, 144, 217, 0.18);
  --clr-sand-soft: rgba(197, 165, 90, 0.2);
  --timeline-dot-size: 14px;
  --timeline-line-width: 2.5px;
}

/* ---------- 首屏英雄 ---------- */
.page-about .hero-brand {
  position: relative;
  padding: 3.5rem 0 3rem;
  overflow: hidden;
  background: linear-gradient(145deg, var(--clr-primary) 30%, var(--clr-neutral1) 100%);
}

.page-about .hero-brand__bg-deco {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.page-about .hero-brand__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  position: relative;
  z-index: 1;
}

.page-about .hero-brand__visual {
  flex: 0 0 auto;
  width: 220px;
  height: 220px;
}

.page-about .hero-brand__shape {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 0 40px rgba(255, 111, 0, 0.2);
}

.page-about .hero-brand__content {
  flex: 1;
  text-align: center;
}

.page-about .hero-brand__breadcrumb {
  font-size: var(--fs-small);
  color: var(--clr-secondary2);
  margin-bottom: 0.75rem;
  letter-spacing: 0.3px;
}

.page-about .hero-brand__breadcrumb a {
  color: var(--clr-secondary1);
  text-decoration: none;
}

.page-about .hero-brand__breadcrumb a:hover {
  color: var(--clr-accent);
}

.page-about .hero-brand__sep {
  margin: 0 0.5rem;
  opacity: 0.5;
}

.page-about .hero-brand__title {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  line-height: 1.1;
  color: var(--clr-text-light);
  margin-bottom: 0.25rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}

.page-about .hero-brand__tagline {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--clr-accent);
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.page-about .hero-brand__desc {
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--clr-neutral3);
  max-width: 540px;
  margin: 0 auto 1.5rem;
}

.page-about .hero-brand__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* ---------- 品牌故事 ---------- */
.page-about .story {
  padding: 4rem 0;
  background: var(--clr-neutral1);
}

.page-about .story__grid {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-top: 2rem;
}

.page-about .story__text {
  flex: 1;
  color: var(--clr-neutral3);
  line-height: 1.8;
}

.page-about .story__text p {
  margin-bottom: 1rem;
}

.page-about .story__more {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--clr-accent);
  font-weight: bold;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition);
}

.page-about .story__more:hover {
  border-bottom-color: var(--clr-accent);
}

/* 时间轴 */
.page-about .story__timeline {
  flex: 1;
  position: relative;
  padding-left: 2rem;
  border-left: var(--timeline-line-width) solid rgba(255, 111, 0, 0.3);
}

.page-about .timeline__item {
  position: relative;
  padding-bottom: 2rem;
}

.page-about .timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .timeline__dot {
  position: absolute;
  left: calc(-2rem - var(--timeline-dot-size)/2 + var(--timeline-line-width)/2);
  top: 4px;
  width: var(--timeline-dot-size);
  height: var(--timeline-dot-size);
  border-radius: 50%;
  background: var(--clr-accent);
  border: 2.5px solid var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(255, 111, 0, 0.25);
  transition: transform var(--transition), box-shadow var(--transition);
}

.page-about .timeline__item:hover .timeline__dot {
  transform: scale(1.2);
  box-shadow: 0 0 0 5px rgba(255, 111, 0, 0.35);
}

.page-about .timeline__content {
  background: var(--clr-neutral2);
  padding: 0.9rem 1.2rem;
  border-radius: 10px;
  border-left: 3px solid var(--clr-secondary1);
}

.page-about .timeline__label {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--clr-text-light);
  display: block;
  margin-bottom: 0.25rem;
}

.page-about .timeline__desc {
  font-size: var(--fs-small);
  color: var(--clr-neutral3);
  line-height: 1.5;
  margin: 0;
}

/* ---------- 地域特色 ---------- */
.page-about .region {
  padding: 4rem 0;
  background: var(--clr-primary);
}

.page-about .region__inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  align-items: center;
}

.page-about .region__image {
  position: relative;
  flex: 0 0 auto;
  width: 100%;
  max-width: 600px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.45);
}

.page-about .region__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 800/500;
}

.page-about .region__deco {
  position: absolute;
  bottom: -10px;
  right: -10px;
  width: 120px;
  height: 120px;
  pointer-events: none;
  opacity: 0.7;
}

.page-about .region__content {
  flex: 1;
}

.page-about .region__content .section__title {
  color: var(--clr-text-light);
}

.page-about .region__content p {
  color: var(--clr-neutral3);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.page-about .region__highlights {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-about .region__highlight-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--clr-text-light);
  font-size: var(--fs-body);
}

.page-about .region__icon {
  color: var(--clr-accent);
  font-size: 0.9rem;
}

/* ---------- 服务承诺 ---------- */
.page-about .promise {
  padding: 4rem 0;
  background: var(--clr-neutral1);
}

.page-about .promise__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.page-about .promise__card {
  padding: 2rem 1.5rem;
  background: var(--clr-neutral2);
  border: 1px solid rgba(255, 111, 0, 0.18);
  border-radius: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-about .promise__card:hover {
  border-color: var(--clr-accent);
  box-shadow: 0 0 24px rgba(255, 111, 0, 0.12);
}

.page-about .promise__card-icon {
  margin-bottom: 1rem;
}

.page-about .promise__card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  color: var(--clr-text-light);
  margin-bottom: 0.6rem;
  letter-spacing: 1px;
}

.page-about .promise__card-text {
  color: var(--clr-neutral3);
  line-height: 1.7;
  font-size: var(--fs-body);
}

.page-about .promise__data-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(197, 165, 90, 0.2);
  align-items: center;
}

.page-about .promise__data-img {
  width: 100%;
  max-width: 600px;
  height: auto;
  aspect-ratio: 600/400;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}

.page-about .promise__data-note {
  text-align: center;
  color: var(--clr-neutral3);
  font-size: var(--fs-small);
}

.page-about .promise__data-note p {
  margin-bottom: 1rem;
}

.page-about .promise__data-note strong {
  color: var(--clr-accent);
}

/* ---------- 联系信任 ---------- */
.page-about .trust {
  padding: 3.5rem 0;
  background: var(--clr-primary);
}

.page-about .trust__inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  align-items: center;
}

.page-about .trust__content {
  flex: 1;
  text-align: center;
}

.page-about .trust__content .section__title {
  color: var(--clr-text-light);
}

.page-about .trust__text {
  color: var(--clr-neutral3);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.page-about .trust__list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.page-about .trust__list li {
  color: var(--clr-text-light);
  font-size: var(--fs-body);
}

.page-about .trust__label {
  font-weight: bold;
  color: var(--clr-secondary2);
  margin-right: 0.3rem;
}

.page-about .trust__list a {
  color: var(--clr-secondary1);
  text-decoration: none;
}

.page-about .trust__list a:hover {
  color: var(--clr-accent);
}

.page-about .trust__note {
  margin-top: 1.2rem;
  font-size: var(--fs-small);
  color: var(--clr-secondary2);
  opacity: 0.8;
}

.page-about .trust__visual {
  flex: 0 0 auto;
  width: 100%;
  max-width: 320px;
}

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

/* ---------- 共享组件覆写 ---------- */
.page-about .section__header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.page-about .section__title {
  font-family: var(--font-heading);
  font-size: var(--fs-h2);
  color: var(--clr-text-light);
  margin-bottom: 0.4rem;
  letter-spacing: 2px;
}

.page-about .section__subtitle {
  font-size: 1.1rem;
  color: var(--clr-secondary2);
  letter-spacing: 1px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-about .hero-brand {
    padding: 5rem 0 4rem;
  }

  .page-about .hero-brand__inner {
    flex-direction: row;
    text-align: left;
    gap: 3.5rem;
  }

  .page-about .hero-brand__visual {
    width: 280px;
    height: 280px;
  }

  .page-about .hero-brand__content {
    text-align: left;
  }

  .page-about .hero-brand__desc {
    margin-left: 0;
    margin-right: 0;
  }

  .page-about .hero-brand__actions {
    justify-content: flex-start;
  }

  .page-about .hero-brand__title {
    font-size: 4rem;
  }

  .page-about .hero-brand__tagline {
    font-size: 1.4rem;
  }

  .page-about .story__grid {
    flex-direction: row;
    gap: 3rem;
  }

  .page-about .story__text {
    flex: 0 0 48%;
  }

  .page-about .story__timeline {
    flex: 0 0 48%;
  }

  .page-about .region__inner {
    flex-direction: row;
    gap: 3rem;
  }

  .page-about .region__image {
    flex: 0 0 50%;
  }

  .page-about .region__content {
    flex: 0 0 45%;
  }

  .page-about .promise__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.8rem;
  }

  .page-about .promise__data-visual {
    flex-direction: row;
    justify-content: center;
    gap: 2.5rem;
  }

  .page-about .promise__data-img {
    flex: 0 0 55%;
  }

  .page-about .promise__data-note {
    flex: 0 0 35%;
    text-align: left;
  }

  .page-about .trust__inner {
    flex-direction: row;
    text-align: left;
    gap: 3rem;
  }

  .page-about .trust__content {
    text-align: left;
  }

  .page-about .trust__list {
    align-items: flex-start;
  }

  .page-about .trust__visual {
    flex: 0 0 280px;
  }
}

@media (min-width: 1024px) {
  .page-about .hero-brand {
    padding: 6rem 0 5rem;
  }

  .page-about .hero-brand__visual {
    width: 340px;
    height: 340px;
  }

  .page-about .hero-brand__title {
    font-size: 4.8rem;
  }

  .page-about .hero-brand__tagline {
    font-size: 1.6rem;
  }

  .page-about .hero-brand__desc {
    font-size: 1.1rem;
    max-width: 580px;
  }

  .page-about .promise__card {
    padding: 2.5rem 2rem;
  }
}

/* 图片响应式 */
.page-about img {
  max-width: 100%;
  height: auto;
}

/* 确保卡片可交互（无JS体验） */
.page-about .card,
.page-about .timeline__item,
.page-about .region__highlight-item {
  cursor: default;
}