/* =====================================================
   パシャシフト ヘルプページ専用スタイル
   styles.css のCSS変数を継承（藍色テーマ）
   ===================================================== */

/* ===== Help Header ===== */
.help-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-bg-secondary);
  border-bottom: 1px solid var(--c-border);
}
.help-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 52px;
}
.help-header__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--c-text);
}
.help-header__back {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--c-primary-light);
  transition: color var(--transition);
}
.help-header__back:hover {
  color: var(--c-primary);
}

/* ===== Help Hero Banner ===== */
.help-hero {
  background: var(--c-bg-secondary);
  padding: 3rem 0 2.5rem;
  text-align: center;
  border-bottom: 1px solid var(--c-border);
}
.help-hero__icon {
  display: flex;
  justify-content: center;
  margin-bottom: 0.75rem;
  color: var(--c-primary-light);
}
.help-hero h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--c-text);
}
.help-hero p {
  font-size: 0.95rem;
  color: var(--c-text-muted);
  margin-bottom: 1.75rem;
}
.help-hero__cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  max-width: 680px;
  margin: 0 auto;
}
.help-hero__cat {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.45rem 1rem;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-text);
  transition: all var(--transition);
}
.help-hero__cat:hover {
  border-color: var(--c-primary-light);
  color: var(--c-primary-light);
  background: rgba(58, 114, 204, 0.08);
}

/* ===== Layout ===== */
.help-layout {
  display: flex;
  gap: 2.5rem;
  padding-top: 2.5rem;
  padding-bottom: 5rem;
  min-height: 100vh;
  align-items: flex-start;
}

/* ===== Sidebar ===== */
.help-sidebar {
  display: none;
  position: sticky;
  top: 72px;
  align-self: flex-start;
  width: 220px;
  flex-shrink: 0;
  max-height: calc(100vh - 90px);
  overflow-y: auto;
  padding: 0.5rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--c-border) transparent;
}
.help-sidebar__link {
  display: block;
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  color: var(--c-text-muted);
  border-left: 3px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  line-height: 1.5;
}
.help-sidebar__link:hover,
.help-sidebar__link.is-active {
  color: var(--c-primary-light);
  border-left-color: var(--c-primary-light);
}

/* ===== Main Content ===== */
.help-content {
  flex: 1;
  min-width: 0;
  padding-bottom: 4rem;
}
.help-content h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--c-primary);
  color: var(--c-text);
  text-align: left;
  letter-spacing: 0;
}
.help-content h2:first-child {
  margin-top: 0;
}

/* ===== Accordion (Q&A) ===== */
.help-trouble {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: border-color var(--transition);
}
.help-trouble:hover {
  border-color: var(--c-border-hover);
}
.help-trouble.is-open {
  border-color: var(--c-primary);
}
.help-trouble__q {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  font-family: var(--font);
  transition: color var(--transition);
}
.help-trouble__q:hover {
  color: var(--c-primary-light);
}
.help-trouble__q .faq__chevron {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--c-text-muted);
  transition: transform 0.3s ease, color var(--transition);
}
.help-trouble__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.help-trouble__a-inner {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.9rem;
  color: var(--c-text-muted);
  line-height: 1.85;
}
.help-trouble.is-open .faq__chevron {
  transform: rotate(180deg);
  color: var(--c-primary-light);
}

/* ===== Step Cards ===== */
.help-step {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.help-step__num {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.help-step__text {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-text-muted);
  padding-top: 0.2rem;
}
.help-step__text strong {
  color: var(--c-text);
}

/* ===== Tip Block ===== */
.help-tip {
  background: rgba(58, 114, 204, 0.07);
  border-left: 3px solid var(--c-primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.85rem 1.1rem;
  margin-top: 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: var(--c-text-muted);
  line-height: 1.7;
}
.help-tip::before {
  content: "💡 ";
}

/* ===== Table ===== */
.help-pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}
.help-pricing-table th,
.help-pricing-table td {
  padding: 0.7rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
}
.help-pricing-table th {
  background: var(--c-bg-elevated);
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--c-text-muted);
  letter-spacing: 0.02em;
}
.help-pricing-table td {
  color: var(--c-text);
}
.help-pricing-table tr:last-child td {
  border-bottom: none;
}

/* ===== Scroll to Top ===== */
.scroll-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-bg-card);
  color: var(--c-text);
  border: 1px solid var(--c-border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  cursor: pointer;
  font-size: 1rem;
}
.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-top:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

/* ===== Responsive ===== */
@media (min-width: 768px) {
  .help-hero h1 {
    font-size: 2.25rem;
  }
  .help-sidebar {
    display: block;
  }
}

@media (max-width: 480px) {
  .help-hero {
    padding: 2rem 0 1.75rem;
  }
  .help-hero h1 {
    font-size: 1.5rem;
  }
  .help-hero__cats {
    gap: 0.45rem;
  }
  .help-hero__cat {
    padding: 0.4rem 0.75rem;
    font-size: 0.78rem;
  }
  .help-layout {
    padding-top: 1.5rem;
  }
  .help-trouble__q {
    font-size: 0.9rem;
    padding: 0.875rem 1rem;
  }
  .help-trouble__a-inner {
    padding: 0 1rem 1rem;
  }
  .help-content h2 {
    font-size: 1.2rem;
  }
}