/* 关于 · 延续 home / forum Neo-Retro 金色主题 */

.about-page {
  position: relative;
  min-height: 100vh;
  background: #0b0a09;
}

.about-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 30% 0%, rgba(160, 100, 30, 0.18), transparent 52%),
    radial-gradient(ellipse at 85% 20%, rgba(80, 55, 20, 0.12), transparent 40%),
    linear-gradient(180deg, rgba(11, 10, 9, 0.5) 0%, rgba(11, 10, 9, 0.92) 45%, rgba(11, 10, 9, 0.98) 100%),
    url("/assets/hero-bg.webp") center 18% / cover no-repeat;
}

.about-page .head,
.about-page .about-main,
.about-page .foot {
  position: relative;
  z-index: 1;
}

.about-page .head {
  position: fixed;
  z-index: 40;
}

.about-page .auth-mask {
  position: fixed;
  inset: 0;
  z-index: 80;
}

.about-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 6.5rem clamp(1.2rem, 4vw, 2.8rem) 3rem;
}

/* —— Hero —— */
.about-hero {
  text-align: center;
  padding: 1.2rem 1rem 2.4rem;
  margin-bottom: 1.8rem;
}

.about-hero__eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.42em;
  color: rgba(154, 130, 92, 0.85);
}

.about-hero h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 500;
  letter-spacing: 0.32em;
  text-indent: 0.32em;
  color: #f2e6c4;
}

.about-hero__lead {
  margin: 0 auto;
  max-width: 40rem;
  color: #9a825c;
  line-height: 1.85;
}

/* —— Grid —— */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
  gap: clamp(1.5rem, 3vw, 2.4rem);
  align-items: start;
}

.about-story {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.about-card {
  padding: 1.5rem 1.65rem;
  border: 1px solid #2a2318;
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(22, 18, 14, 0.92), rgba(14, 12, 10, 0.88));
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

.about-card__title {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: #f0dfb0;
}

.about-card p {
  margin: 0 0 0.85rem;
  color: #a89068;
  line-height: 1.85;
}

.about-card p:last-child {
  margin-bottom: 0;
}

.about-card--quote {
  border-color: rgba(180, 140, 60, 0.35);
  background: linear-gradient(135deg, rgba(32, 24, 12, 0.55), rgba(14, 12, 10, 0.9));
}

.about-card--quote blockquote {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.9;
  color: #e8d6a8;
  letter-spacing: 0.04em;
}

.about-card__cite {
  margin: 1rem 0 0;
  text-align: right;
  font-size: 0.82rem;
  color: #7a6848;
  letter-spacing: 0.08em;
}

/* —— Features list —— */
.about-features {
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-features li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(42, 35, 24, 0.65);
}

.about-features li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.about-features li:first-child {
  padding-top: 0;
}

.about-features__num {
  flex-shrink: 0;
  width: 2rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(224, 200, 120, 0.55);
  line-height: 1.6;
}

.about-features h3 {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: #e0c878;
  letter-spacing: 0.06em;
}

.about-features p {
  margin: 0;
  font-size: 0.88rem;
  color: #8a7550;
  line-height: 1.7;
}

/* —— Sidebar contact —— */
.about-side {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  position: sticky;
  top: 5.5rem;
}

.about-contact {
  padding: 1.65rem 1.5rem;
  border: 1px solid rgba(180, 140, 60, 0.28);
  border-radius: 10px;
  background: linear-gradient(160deg, rgba(28, 22, 14, 0.95), rgba(16, 13, 10, 0.92));
  box-shadow:
    0 16px 40px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 220, 140, 0.06);
}

.about-contact__title {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: #f2e6c4;
  text-align: center;
}

.about-contact__hint {
  margin: 0 0 1.35rem;
  font-size: 0.82rem;
  color: #8a7550;
  text-align: center;
  line-height: 1.65;
}

/* —— WeChat QR —— */
.about-qr {
  text-align: center;
  margin-bottom: 1.35rem;
}

.about-qr__frame {
  display: inline-block;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  line-height: 0;
}

.about-qr__img {
  display: block;
  width: 240px;
  height: 240px;
  object-fit: contain;
  border-radius: 8px;
  filter: drop-shadow(0 8px 22px rgba(0, 0, 0, 0.4));
}

.about-qr__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 240px;
  height: 240px;
  border-radius: 4px;
  background: rgba(26, 21, 16, 0.9);
  border: 1px dashed rgba(196, 168, 106, 0.35);
  color: #c4a86a;
}

.about-qr__placeholder[hidden] {
  display: none !important;
}

.about-qr__icon {
  display: block;
  margin-bottom: 0.65rem;
  opacity: 0.75;
}

.about-qr__ph-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: #e0c878;
}

.about-qr__ph-note {
  margin: 0.25rem 0 0;
  font-size: 0.78rem;
  color: #8a7550;
}

.about-qr__caption {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: #c4a86a;
  letter-spacing: 0.12em;
}

.about-links {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(42, 35, 24, 0.8);
  padding-top: 1rem;
}

.about-links li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(42, 35, 24, 0.45);
}

.about-links li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.about-links__label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: rgba(154, 130, 92, 0.75);
}

.about-links a {
  font-size: 0.88rem;
  color: #e0c878;
}

.about-links a:hover {
  color: #f3df9d;
}

/* —— Stats —— */
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.about-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.85rem 0.4rem;
  border: 1px solid #2a2318;
  border-radius: 8px;
  background: rgba(18, 15, 11, 0.75);
  text-align: center;
}

.about-stat__val {
  font-size: 0.92rem;
  font-weight: 500;
  color: #f0dfb0;
  letter-spacing: 0.06em;
}

.about-stat__lbl {
  margin-top: 0.2rem;
  font-size: 0.68rem;
  color: #7a6848;
  letter-spacing: 0.08em;
}

/* —— CTA —— */
.about-cta {
  margin-top: 2.8rem;
  padding: 2.4rem 1.5rem;
  text-align: center;
  border: 1px solid rgba(180, 140, 60, 0.22);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(24, 18, 10, 0.5), rgba(11, 10, 9, 0.2));
}

.about-cta__kicker {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.38em;
  color: rgba(154, 130, 92, 0.85);
}

.about-cta h2 {
  margin: 0 0 1.35rem;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: #f2e6c4;
}

/* —— Responsive —— */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-side {
    position: static;
    order: -1;
  }

  .about-contact {
    max-width: 360px;
    margin: 0 auto;
  }
}

@media (max-width: 480px) {
  .about-main {
    padding-top: 5.8rem;
  }

  .about-hero h1 {
    letter-spacing: 0.2em;
    text-indent: 0.2em;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .about-qr__frame,
  .about-qr__img,
  .about-qr__placeholder {
    width: 200px;
    height: 200px;
  }

  .about-qr__img {
    width: 200px;
    height: 200px;
  }
}