/* =========================================================
   nanoTRACK about page (運営概要)
   Extends style.css — reuses its CSS variables, .container,
   .reveal-up etc. Only page-specific components live here.
   Base styles are written for PC and overridden inside a
   single `@media (max-width: 768px)` block for SP, matching
   the convention used in style.css.
========================================================= */

/* ---------- page hero (title) ---------- */

.page-hero {
  padding: calc(var(--header-h) + clamp(32px, 6vw, 74px)) 0 clamp(32px, 5vw, 56px);
}

.page-hero__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(1.75rem, 0.4rem + 6.5vw, 6rem); /* 28px～96px */
  line-height: 1;
  letter-spacing: 0.1em;
  color: var(--text);
}

.page-hero__lead {
  margin: clamp(12px, 2vw, 20px) 0 0;
  font-size: var(--fs-18);
  font-weight: 500;
}

/* ---------- breadcrumb ---------- */

.breadcrumb {
  padding: clamp(16px, 3vw, 36px) 0;
}

.breadcrumb__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
  font-size: var(--fs-18);
  font-weight: 500;
}

.breadcrumb__inner a,
.breadcrumb__inner .breadcrumb__sep {
  white-space: nowrap;
}

.breadcrumb__inner a {
  text-decoration: underline;
}

.breadcrumb__sep {
  opacity: 0.6;
}

/* ---------- about table ---------- */

.about-table {
  padding: clamp(40px, 6vw, 80px) 0 clamp(80px, 10vw, 140px);
}

.about-table__box {
  background: rgba(255, 255, 255, 0.8);
  padding: clamp(16px, 2.5vw, 32px) clamp(20px, 3vw, 40px);
}

.about-table__box .about-row:first-child {
  padding-top: 0;
}

.about-table__box .about-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.about-row {
  display: flex;
  align-items: flex-start;
  gap: clamp(24px, 4vw, 60px);
  padding: clamp(16px, 2vw, 24px) 0;
  border-bottom: 1px solid var(--border);
}

.about-row__label {
  flex: none;
  width: clamp(140px, 22vw, 300px);
  margin: 0;
  font-size: var(--fs-18);
  font-weight: 500;
  white-space: nowrap;
}

.about-row__value {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: var(--fs-18);
  font-weight: 500;
  line-height: 1.6;
}

.about-row__value a {
  text-decoration: underline;
}

/* ---------- SP ---------- */

@media (max-width: 768px) {
  .page-hero {
    padding: calc(var(--header-h) + 32px) 0 32px;
  }

  .about-table {
    padding: 32px 0 64px;
  }

  .about-row {
    flex-direction: column;
    gap: 8px;
  }

  .about-row__label {
    width: auto;
    white-space: normal;
  }
}