/* ============================================================
   戴世「墨影」动捕系统 — About Page Styles
   moca-about.css

   8-Section layout: Hero → Origin → Decade → Brand →
   Mission → Roadmap → Slogan → Contact

   Uses --moca-* design tokens from style.css
   BEM: .moca-about-*
   ============================================================ */

/* ─────────────────────────────────────
   1. Shared
   ───────────────────────────────────── */
.moca-about-section {
  padding: 100px 0;
}
.moca-about-section--dark {
  background: var(--moca-gray-900);
  color: var(--moca-text-invert);
}
.moca-about-section--alt {
  background: var(--moca-gray-50);
}
.moca-about-section--white {
  background: var(--moca-white);
}

.moca-about-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--moca-page-gutter);
}

.moca-about-label {
  display: block;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--moca-accent);
  margin-bottom: var(--moca-space-4);
}

.moca-about-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--moca-text-primary);
  margin-bottom: var(--moca-space-4);
}

.moca-about-sub {
  font-size: 19px;
  color: var(--moca-text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: var(--moca-space-8);
}

.moca-about-section--dark .moca-about-title { color: #fff; }
.moca-about-section--dark .moca-about-sub   { color: rgba(255,255,255,0.65); }

.moca-about-text-center { text-align: center; }
.moca-about-mx-auto { margin-left: auto; margin-right: auto; }

/* ─────────────────────────────────────
   2. S1: Hero
   ───────────────────────────────────── */
.moca-about-hero {
  position: relative;
  min-height: 70vh;
  margin-top: calc(-1 * var(--moca-header-total-height));
  background: var(--moca-gray-900);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.moca-about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(
    ellipse 80% 120% at 28% 50%,
    rgba(0, 0, 0, 0.55) 0%,
    rgba(0, 0, 0, 0.30) 35%,
    rgba(0, 0, 0, 0.08) 55%,
    transparent 70%
  );
  pointer-events: none;
}

/* Hero banner image */
.moca-about-hero__banner {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.moca-about-hero__banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}



.moca-about-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
  padding: var(--moca-header-total-height) var(--moca-page-gutter) 80px;
}

.moca-about-hero__badge {
  display: inline-block;
  background: rgba(230,57,70,0.15);
  color: #ef9a9a;
  font-size: 17px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--moca-radius-full);
  margin-bottom: var(--moca-space-6);
}

.moca-about-hero__title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 20px;
}
.moca-about-hero__title em {
  font-style: normal;
  color: #ef5350;
}

.moca-about-hero__tagline {
  font-size: 19px;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}

/* ─────────────────────────────────────
   3. S2: Origin Story
   ───────────────────────────────────── */
.moca-about-origin {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.moca-about-origin__visual {
  position: relative;
  aspect-ratio: 4/5;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d1111 50%, #1a0a0a 100%);
  border-radius: var(--moca-radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.moca-about-origin__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.moca-about-origin__visual-placeholder {
  text-align: center;
  color: rgba(255,255,255,0.25);
  font-size: 14px;
  line-height: 1.8;
}

.moca-about-origin__visual-placeholder strong {
  display: block;
  font-size: 48px;
  font-weight: 300;
  margin-bottom: 12px;
  color: rgba(255,255,255,0.15);
}

.moca-about-origin__text { padding: 20px 0; }

.moca-about-origin__heading {
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--moca-text-primary);
  margin-bottom: var(--moca-space-5);
}

.moca-about-origin__body {
  font-size: 17px;
  color: var(--moca-text-secondary);
  line-height: 1.85;
}

.moca-about-origin__body p {
  margin-bottom: var(--moca-space-4);
}
.moca-about-origin__body p:last-child { margin-bottom: 0; }

/* ─────────────────────────────────────
   4. S3: Decade Stats
   ───────────────────────────────────── */
.moca-about-decade-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--moca-space-5);
}

.moca-about-decade-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--moca-radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: background 0.25s var(--moca-ease-out),
              border-color 0.25s var(--moca-ease-out);
}

.moca-about-decade-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
}

.moca-about-decade-card__num {
  font-size: 56px;
  font-weight: 300;
  line-height: 1;
  color: #ef5350;
  margin-bottom: var(--moca-space-4);
}

.moca-about-decade-card__num span {
  font-size: 24px;
  font-weight: 400;
}

.moca-about-decade-card__title {
  font-size: 19px;
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--moca-space-3);
}

.moca-about-decade-card__desc {
  font-size: 16px;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
}

/* ─────────────────────────────────────
   5. S4: Brand Definition
   ───────────────────────────────────── */
.moca-about-brand-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--moca-space-9);
}

.moca-about-brand-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.moca-about-brand-card {
  background: var(--moca-white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--moca-radius-lg);
  padding: 40px 36px;
  transition: box-shadow 0.25s var(--moca-ease-out);
}

.moca-about-brand-card:hover {
  box-shadow: var(--moca-shadow-md);
}

.moca-about-brand-card__char {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--moca-radius-md);
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
}

.moca-about-brand-card__char--mo  { background: #111; }
.moca-about-brand-card__char--ying { background: var(--moca-accent); }

.moca-about-brand-card__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--moca-text-primary);
  margin-bottom: 10px;
}

.moca-about-brand-card__en {
  font-size: 17px;
  color: var(--moca-text-muted);
  margin-bottom: var(--moca-space-4);
}

.moca-about-brand-card__desc {
  font-size: 18px;
  color: var(--moca-text-secondary);
  line-height: 1.8;
}

/* Name etymology block */
.moca-about-name-block {
  margin-top: var(--moca-space-9);
  padding: 40px 48px;
  background: var(--moca-gray-50);
  border-radius: var(--moca-radius-lg);
  text-align: center;
}

.moca-about-name-block__formula {
  font-family: var(--moca-font-en);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600;
  color: var(--moca-text-primary);
  margin-bottom: var(--moca-space-3);
  letter-spacing: 1px;
  overflow-wrap: break-word;
}

.moca-about-name-block__formula em {
  font-style: normal;
  color: var(--moca-accent);
}

.moca-about-name-block__desc {
  font-size: 16px;
  color: var(--moca-text-muted);
  line-height: 1.7;
}

/* ─────────────────────────────────────
   6. S5: Mission
   ───────────────────────────────────── */
.moca-about-mission__quote {
  font-size: clamp(18px, 3vw, 22px);
  font-weight: 500;
  line-height: 1.8;
  color: var(--moca-text-primary);
  max-width: 800px;
  margin: 0 auto var(--moca-space-6);
  text-align: center;
}

.moca-about-mission__pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--moca-space-5);
  max-width: 900px;
  margin: 0 auto var(--moca-space-8);
}

.moca-about-mission-card {
  text-align: center;
  padding: 32px 20px;
}

.moca-about-mission-card__icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  margin: 0 auto var(--moca-space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 700;
}

.moca-about-mission-card__icon--a { background: #fee2e2; color: var(--moca-accent); }
.moca-about-mission-card__icon--b { background: #dbeafe; color: #2563eb; }
.moca-about-mission-card__icon--c { background: #dcfce7; color: #16a34a; }

.moca-about-mission-card__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--moca-text-primary);
  margin-bottom: 8px;
}

.moca-about-mission-card__desc {
  font-size: 16px;
  color: var(--moca-text-muted);
  line-height: 1.6;
}

/* ─────────────────────────────────────
   7. S6: Roadmap
   ───────────────────────────────────── */
.moca-about-roadmap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 600px;
  margin: 0 auto;
}

.moca-about-roadmap-card {
  border-radius: var(--moca-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.08);
  transition: box-shadow 0.25s var(--moca-ease-out);
}

.moca-about-roadmap-card:hover {
  box-shadow: var(--moca-shadow-md);
}

.moca-about-roadmap-card__bar {
  height: 4px;
}

.moca-about-roadmap-card__bar--now  { background: var(--moca-accent); }
.moca-about-roadmap-card__bar--next { background: var(--moca-gray-400); }

.moca-about-roadmap-card__body {
  padding: 36px 32px;
  background: var(--moca-white);
}

.moca-about-roadmap-card__gen {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--moca-radius-sm);
  margin-bottom: var(--moca-space-3);
}

.moca-about-roadmap-card__gen--now  { background: #fee2e2; color: var(--moca-accent); }
.moca-about-roadmap-card__gen--next { background: var(--moca-gray-100); color: var(--moca-gray-600); }

.moca-about-roadmap-card__name {
  font-size: 22px;
  font-weight: 700;
  color: var(--moca-text-primary);
  margin-bottom: var(--moca-space-2);
}

.moca-about-roadmap-card__tagline {
  font-size: 14px;
  color: var(--moca-text-muted);
  margin-bottom: var(--moca-space-4);
}

.moca-about-roadmap-card__desc {
  font-size: 14px;
  color: var(--moca-text-secondary);
  line-height: 1.7;
}

/* ─────────────────────────────────────
   8. S7: Slogan Strip
   ───────────────────────────────────── */
.moca-about-slogan-strip {
  text-align: center;
  padding: 80px 0;
}

.moca-about-slogan-strip__text {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 500;
  line-height: 1.6;
  color: #fff;
  max-width: 700px;
  margin: 0 auto;
}

.moca-about-slogan-strip__text em {
  font-style: normal;
  color: #ef5350;
}

/* ─────────────────────────────────────
   9. S8: Contact
   ───────────────────────────────────── */
.moca-about-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.moca-about-contact-card {
  background: var(--moca-white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--moca-radius-lg);
  padding: 36px;
  display: flex;
  align-items: center;
  gap: 20px;
  text-decoration: none;
  transition: box-shadow 0.25s var(--moca-ease-out);
}

.moca-about-contact-card:hover {
  box-shadow: var(--moca-shadow-md);
}

.moca-about-contact-card__icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--moca-gray-50);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s;
}

.moca-about-contact-card:hover .moca-about-contact-card__icon {
  background: rgba(230,57,70,0.1);
}

.moca-about-contact-card__label {
  font-size: 15px;
  color: var(--moca-text-muted);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.moca-about-contact-card__value {
  font-size: 21px;
  font-weight: 600;
  color: var(--moca-text-primary);
  transition: color 0.2s;
  overflow-wrap: break-word;
  word-break: break-word;
}

.moca-about-contact-card:hover .moca-about-contact-card__value {
  color: var(--moca-accent);
}


/* ─────────────────────────────────────
   10. Responsive — Tablet (≤ 968px)
   ───────────────────────────────────── */
@media (max-width: 968px) {
  .moca-about-container { max-width: none; }

  .moca-about-hero {
    min-height: unset;
    height: auto;
    margin-top: calc(-1 * var(--moca-header-height));
  }
  .moca-about-hero__banner {
    display: none;
  }
  /* 顶部内边距必须抵消 .moca-about-hero 的负 margin-top（上方 .daisch-header-wrapper
     是 position:fixed、z-index:1000 的不透明头部，会把 hero 上沿盖住）。原先写死 60px，
     小于移动端头部高度 72px，徽章「关于我们」被压在头部底下看不见。
     calc(header + 40px) = 抵消拉高 + 留 40px 呼吸位。 */
  .moca-about-hero__inner {
    position: relative;
    padding: calc(var(--moca-header-height) + 40px) var(--moca-page-gutter) 60px;
    max-width: 100%;
  }
  .moca-about-hero__title {
    font-size: clamp(24px, 4.5vw, 32px);
  }
  .moca-about-hero__tagline {
    font-size: 16px;
  }

  .moca-about-origin {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .moca-about-origin__visual {
    aspect-ratio: auto;
    order: -1;
  }
  .moca-about-origin__visual img {
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  .moca-about-origin__text { padding: 0; }

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

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

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

  .moca-about-roadmap-grid { max-width: none; }

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

/* ─────────────────────────────────────
   11. Responsive — Mobile (≤ 640px)
   ───────────────────────────────────── */
@media (max-width: 640px) {
  .moca-about-section { padding: 60px 0; }

  .moca-about-hero {
    margin-top: calc(-1 * var(--moca-header-height));
  }
  /* 同上：原写死 24px 远小于 72px 头部高度，徽章+标题顶部全被头部盖住。
     calc(header + 24px)：抵消拉高后，上方留一个与页面 gutter 等宽的呼吸位。 */
  .moca-about-hero__inner {
    padding: calc(var(--moca-header-height) + 24px) var(--moca-page-gutter) 32px;
  }
  .moca-about-hero__title {
    font-size: clamp(20px, 5vw, 26px);
    margin-bottom: 12px;
  }
  .moca-about-hero__tagline {
    font-size: 14px;
  }
  .moca-about-hero__badge {
    font-size: 13px;
    padding: 4px 12px;
    margin-bottom: var(--moca-space-4);
  }

  .moca-about-label { font-size: 16px; }
  .moca-about-title { font-size: clamp(22px, 5vw, 28px); }
  .moca-about-sub { font-size: 16px; }

  .moca-about-origin__heading { font-size: clamp(20px, 4vw, 26px); }
  .moca-about-origin__body { font-size: 15px; }

  .moca-about-decade-card { padding: 32px 24px; }
  .moca-about-decade-card__num { font-size: 42px; }

  .moca-about-brand-card { padding: 32px 24px; }

  .moca-about-name-block { padding: 28px 24px; }

  .moca-about-mission__quote { font-size: 17px; }

  .moca-about-roadmap-card__body { padding: 28px 24px; }

  .moca-about-slogan-strip { padding: 60px 0; }
  .moca-about-slogan-strip__text { font-size: 18px; }
}

/* ─────────────────────────────────────
   12. Reduced Motion
   ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {}