/* ===== 品牌文化 /culture/ 页面专属样式 ===== */

.page-about {
  --about-cut: clamp(16px, 3vw, 26px);
  --about-gold-line: rgba(201, 162, 39, 0.3);
  --about-stone: #17181C;
  --about-ink: #0B0B0D;
  display: block;
  background: var(--ink);
  color: var(--warm);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding: 1.25rem 0 0;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--bronze);
}

.page-about .breadcrumb a {
  color: var(--text-soft);
  text-decoration: none;
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--gold);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.75rem, 6vw, 4rem) 0 clamp(1.5rem, 4vw, 2.5rem);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(115% 90% at 82% -12%, rgba(201, 162, 39, 0.18), transparent 62%),
    linear-gradient(180deg, rgba(11, 11, 13, 0) 0%, rgba(23, 24, 28, 0.85) 100%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-about .about-hero__lead {
  max-width: 46rem;
}

.page-about .about-hero h1 {
  margin: 0.85rem 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6.4vw, 4.1rem);
  line-height: 1.2;
  letter-spacing: 0.05em;
  color: var(--warm);
  max-width: 20ch;
}

.page-about .about-hero__intro {
  margin: 0 0 1.75rem;
  max-width: 46ch;
  font-size: clamp(1rem, 2.2vw, 1.1rem);
  line-height: 1.95;
  color: var(--text-soft);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.page-about .about-hero__actions .btn {
  min-height: 46px;
}

.page-about .about-hero__mark {
  display: none;
}

.page-about .about-hero__beam {
  position: relative;
  display: block;
  width: 100%;
  height: 6px;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

/* ---------- 页内导航 ---------- */
.page-about .about-index {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: rgba(23, 24, 28, 0.72);
}

.page-about .about-index ul {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
}

.page-about .about-index li {
  flex: 0 0 auto;
}

.page-about .about-index a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0 1.1rem;
  border-right: 1px solid var(--rule);
  color: var(--text-soft);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  scroll-snap-align: start;
}

.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  color: var(--gold);
  background: rgba(201, 162, 39, 0.07);
}

.page-about .about-index__num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--bronze);
}

/* ---------- 通用板块间距 ---------- */
.page-about .section {
  padding: clamp(2.75rem, 7vw, 5.5rem) 0;
}

.page-about .section-title {
  max-width: 24ch;
}

/* ---------- 01 源起 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3.25rem);
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

.page-about .about-origin__text .prose p {
  max-width: 54ch;
}

.page-about .about-origin__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--about-gold-line);
  background: var(--about-stone);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.page-about .about-origin__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 5;
  object-fit: cover;
}

.page-about .about-origin__figure figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 84%;
  padding: 0.75rem 1.25rem;
  background: rgba(11, 11, 13, 0.8);
  border-top: 1px solid var(--about-gold-line);
  font-size: 0.8125rem;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

/* ---------- 02 体验主张（暖纸画布） ---------- */
.page-about .about-promise {
  background: linear-gradient(180deg, #E8DFCF 0%, #DCD1BC 100%);
  color: #1F1C16;
}

.page-about .about-promise .eyebrow {
  color: #7A5C1B;
}

.page-about .about-promise .section-title {
  color: #14130F;
}

.page-about .about-promise .section-note {
  color: #4A453B;
}

.page-about .about-promise__seal {
  display: inline-block;
  margin: 0.5rem 0 0.75rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid #7A2E35;
  color: #7A2E35;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  transform: rotate(-2deg);
}

.page-about .about-promise__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-about .about-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  counter-reset: about-step;
}

.page-about .about-steps li {
  position: relative;
  padding: 1.35rem 1.35rem 1.35rem 4.5rem;
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(58, 55, 48, 0.24);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
}

.page-about .about-steps li::before {
  counter-increment: about-step;
  content: "0" counter(about-step);
  position: absolute;
  left: 1.35rem;
  top: 1.3rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--bronze);
}

.page-about .about-steps h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  color: #14130F;
}

.page-about .about-steps p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.9;
  color: #3B3831;
}

.page-about .about-promise__aside {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}

.page-about .about-promise__figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(58, 55, 48, 0.28);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
}

.page-about .about-promise__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-about .about-note {
  border: 1px solid rgba(58, 55, 48, 0.28);
  background: rgba(255, 255, 255, 0.55);
  padding: 0.9rem 1.15rem;
}

.page-about .about-note summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 40px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 0.95rem;
  color: #14130F;
}

.page-about .about-note summary::-webkit-details-marker {
  display: none;
}

.page-about .about-note summary::after {
  content: "+";
  margin-left: auto;
  font-size: 1.15rem;
  color: var(--bronze);
}

.page-about .about-note[open] summary::after {
  content: "–";
}

.page-about .about-note p {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  line-height: 1.9;
  color: #3B3831;
}

/* ---------- 03 发展沿革 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  padding: 0;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 1.75rem 2.25rem;
  border-left: 1px solid var(--rule);
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 0.5rem;
  width: 13px;
  height: 13px;
  background: var(--ink);
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-about .about-timeline__phase {
  margin: 0 0 0.4rem;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--bronze);
}

.page-about .about-timeline__item h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.15rem, 2.6vw, 1.4rem);
  letter-spacing: 0.04em;
  color: var(--warm);
}

.page-about .about-timeline__item p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.98rem;
  line-height: 1.95;
  color: var(--text-soft);
}

.page-about .about-journey__band {
  position: relative;
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  overflow: hidden;
  border: 1px solid var(--about-gold-line);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
}

.page-about .about-journey__band img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: 0.88;
}

/* ---------- 04 团队与原则 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3.25rem);
}

.page-about .about-team__intro .prose p {
  max-width: 52ch;
}

.page-about .about-stats {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.page-about .about-stats li {
  padding: 1rem 1.15rem;
  background: var(--about-stone);
  border-left: 2px solid var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.6vw, 2rem);
  line-height: 1.15;
  letter-spacing: 0.03em;
  color: var(--gold);
}

.page-about .stat-label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  letter-spacing: 0.08em;
  color: var(--text-soft);
}

.page-about .about-principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
  align-content: start;
}

.page-about .about-principles li {
  position: relative;
  padding: 1rem 1.15rem 1rem 2.7rem;
  border: 1px solid var(--rule);
  background: rgba(23, 24, 28, 0.62);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-about .about-principles li::before {
  content: "";
  position: absolute;
  left: 1.1rem;
  top: 1.6rem;
  width: 10px;
  height: 10px;
  border: 1px solid var(--bronze);
  transform: rotate(45deg);
}

/* ---------- 05 协作生态 ---------- */
.page-about .about-eco {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-about .about-eco li {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: var(--about-stone);
}

.page-about .about-partners__note {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-about .about-partners__note p {
  max-width: 66ch;
}

/* ---------- 06 联络 ---------- */
.page-about .about-reach__panel {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--about-gold-line);
  background: linear-gradient(140deg, rgba(23, 24, 28, 0.97), rgba(11, 11, 13, 0.99));
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
}

.page-about .about-reach__text .prose p {
  max-width: 48ch;
}

.page-about .about-reach__text .prose a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, 0.45);
}

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

.page-about .about-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
  align-content: start;
}

.page-about .about-contact-list li {
  display: grid;
  gap: 0.25rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px dashed var(--rule);
}

.page-about .about-contact-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .field-label {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--bronze);
}

.page-about .field-value {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--warm);
  overflow-wrap: anywhere;
}

.page-about .about-contact-list a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, 0.4);
}

.page-about .about-contact-list a:hover,
.page-about .about-contact-list a:focus-visible {
  color: var(--warm);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-about .about-hero__mark {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
    gap: 1.5rem;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 0.75rem;
    letter-spacing: 0.34em;
    color: var(--bronze);
    padding-bottom: 0.5rem;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-about .about-promise__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-about .about-timeline {
    margin-left: 1.5rem;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-reach__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 720px) {
  .page-about .about-eco {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-about .about-eco {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}
</main>