/* =========================
   Faq Page
========================= */
/* ===== 1. PAGE HERO ===== */
#faq-hero{ position: relative; min-height: 40vh;
  display: flex; align-items: center;
  background: var(--navy2); overflow: hidden;
}
#faq-hero::before{ content: ''; position: absolute; inset: 0;
  background: linear-gradient(130deg, rgba(15,30,66,.95) 0%, rgba(27,45,94,.80) 55%, rgba(40,176,210,.15) 100%);
}
#faq-hero::after{ content: ''; position: absolute; top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(40,176,210,.22) 0%, transparent 65%);
  border-radius: 50%;
}
.hero-grid-lines{ position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero-grid-lines::before{ content: ''; position: absolute; top: 0; left: 50%; width: 1px; height: 100%; background: linear-gradient(to bottom, transparent, rgba(40,176,210,.12), transparent); }
.hero-grid-lines::after{ content: ''; position: absolute; top: 50%; left: 0; width: 100%; height: 1px; background: linear-gradient(to right, transparent, rgba(40,176,210,.12), transparent); }
.c-hero-content{ position: relative; z-index: 2; width: 100%; padding: 120px 0 72px; }
.c-hero-eyebrow{ display: flex; align-items: center; gap: 10px; margin-bottom: 22px; }
.c-hero-eyebrow-bar{ width: 40px; height: 2px; background: var(--blue); flex-shrink: 0; }
.c-hero-eyebrow-text{ font-size: 11px; font-weight: 700; letter-spacing: .22em; color: var(--blue); text-transform: uppercase; font-family: 'Helvetica Neue', Arial, sans-serif; }
.c-hero-title{ font-size: clamp(32px, 7vw, 96px); font-weight: 900; color: #fff; line-height: 1.05; letter-spacing: -.03em; margin-bottom: 18px; }
.c-hero-title span{ color: var(--blue); }
.c-hero-sub{ font-size: 14px; color: rgba(255,255,255,.5); letter-spacing: .08em; font-family: 'Helvetica Neue', Arial, sans-serif; text-transform: uppercase; }
/* ===== 2. FAQ SECTION ===== */
#faq-body{ padding: 100px 0 120px; background: var(--gray50); }
.faq-layout{ display: grid; grid-template-columns: 260px 1fr; gap: 60px; align-items: start; }
/* ユーザーガイド バナー */
.user-guide-banner{ background: #fff; border: 1px solid var(--gray100); border-left: 4px solid var(--blue);
  padding: 24px; margin-bottom: 40px; display: flex; align-items: center; justify-content: space-between; border-radius: 4px; flex-wrap: wrap; gap: 16px;
}
.user-guide-text h3{ font-size: 16px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.user-guide-text p{ font-size: 13px; color: var(--gray700); line-height: 1.5; }
/* カテゴリ サイドバー */
.faq-sidebar{ position: sticky; top: 100px; }
.faq-sidebar-title{ font-size: 10px; font-weight: 700; letter-spacing: .16em; color: var(--gray500); text-transform: uppercase; margin-bottom: 18px; }
.faq-cat-list{ display: flex; flex-direction: column; gap: 4px; }
.faq-cat-btn{ display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; cursor: pointer;
  background: transparent; border: none; font-family: inherit;
  font-size: 13px; font-weight: 600; color: var(--gray500);
  letter-spacing: .04em; text-align: left; position: relative;
  transition: color .2s;
}
.faq-cat-btn::before{ content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 0; background: var(--blue);
  transition: height .3s cubic-bezier(.22,1,.36,1);
}
.faq-cat-btn.active{ color: var(--navy); }
.faq-cat-btn.active::before{ height: 100%; }
.faq-cat-count{ margin-left: auto; font-size: 10px; font-weight: 700;
  color: var(--blue); background: rgba(40,176,210,.1);
  padding: 2px 7px; border-radius: 20px;
  transition: opacity .2s;
}
.faq-cat-btn:not(.active) .faq-cat-count{ opacity: .5; }
/* FAQ アコーディオンリスト */
.faq-main{ }
.faq-group{ display: none; }
.faq-group.active{ display: block; }
.faq-item{ background: #fff;
  border: 1px solid var(--gray100);
  margin-bottom: 12px;
  transition: border-color .25s, box-shadow .25s;
}
.faq-item.open{ border-color: rgba(40,176,210,.3);
  box-shadow: 0 4px 24px rgba(40,176,210,.08);
}
/* Q 行 */
.faq-q{ display: flex; align-items: center; gap: 0;
  cursor: pointer; padding: 0;
  background: none; border: none; width: 100%;
  text-align: left; font-family: inherit;
  list-style: none;
}
.faq-q-badge{ flex-shrink: 0; width: 56px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 22px; font-weight: 900; color: var(--blue);
  border-right: 1px solid var(--gray100);
  transition: background .25s, color .25s;
}
.faq-item.open .faq-q-badge{ background: var(--navy2); color: var(--yellow);
  border-right-color: transparent;
}
.faq-q-text{ flex: 1; padding: 18px 20px;
  font-size: 15px; font-weight: 700; color: var(--navy);
  line-height: 1.6; transition: color .2s;
}
.faq-item.open .faq-q-text{ color: var(--navy); }
.faq-toggle{ flex-shrink: 0; width: 56px; height: 64px;
  display: flex; align-items: center; justify-content: center;
}
.faq-toggle-icon{ width: 28px; height: 28px;
  border: 1.5px solid var(--gray300);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  position: relative; transition: background .25s, border-color .25s, transform .4s cubic-bezier(.22,1,.36,1);
}
.faq-toggle-icon::before,
.faq-toggle-icon::after{ content: ''; position: absolute;
  background: var(--gray500);
  transition: background .25s, transform .4s cubic-bezier(.22,1,.36,1), opacity .25s;
}
.faq-toggle-icon::before{ width: 10px; height: 1.5px; }
.faq-toggle-icon::after{ width: 1.5px; height: 10px; }
.faq-item.open .faq-toggle-icon{ background: var(--blue); border-color: var(--blue);
  transform: rotate(45deg);
}
.faq-item.open .faq-toggle-icon::before,
.faq-item.open .faq-toggle-icon::after{ background: #fff; }
/* A 行 */
.faq-a-wrap{ overflow: hidden;
  max-height: 0;
  transition: max-height .45s cubic-bezier(.22,1,.36,1);
}
.faq-item.open .faq-a-wrap{ max-height: 600px; }
.faq-a{ display: flex; align-items: flex-start; gap: 0;
  border-top: 1px solid var(--gray100);
}
.faq-a-badge{ flex-shrink: 0; width: 56px; padding-top: 20px;
  display: flex; justify-content: center;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 22px; font-weight: 900; color: var(--blue);
  opacity: .25;
}
.faq-a-text{ flex: 1; padding: 20px 20px 24px 0;
  font-size: 14px; color: var(--gray700);
  line-height: 1.85;
}
.faq-a-text strong{ color: var(--navy); font-weight: 700; }
.faq-a-text a{ color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
/* ===== 3. CONTACT BANNER ===== */
#faq-contact{ padding: 80px 0; background: #fff; }
.faq-contact-inner{ display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.faq-contact-card{ padding: 48px 44px;
  display: flex; flex-direction: column; gap: 16px;
  position: relative; overflow: hidden;
}
.faq-contact-card.card-dark{ background: var(--navy2);
}
.faq-contact-card.card-light{ background: var(--gray50);
  border: 1px solid var(--gray100);
}
.faq-contact-card::after{ content: ''; position: absolute;
  top: -80px; right: -80px; width: 240px; height: 240px;
  border-radius: 50%;
  pointer-events: none;
}
.card-dark::after{ background: radial-gradient(circle, rgba(40,176,210,.18) 0%, transparent 65%); }
.card-light::after{ background: radial-gradient(circle, rgba(27,45,94,.06) 0%, transparent 65%); }
.faq-contact-eyebrow{ font-size: 10px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}
.card-dark  .faq-contact-eyebrow{ color: var(--blue); }
.card-light .faq-contact-eyebrow{ color: var(--gray500); }
.faq-contact-title{ font-size: clamp(20px, 2.4vw, 28px); font-weight: 900; line-height: 1.4; letter-spacing: -.01em;
}
.card-dark  .faq-contact-title{ color: #fff; }
.card-light .faq-contact-title{ color: var(--navy); }
.faq-contact-desc{ font-size: 13px; line-height: 1.85; }
.faq-contact-title,
.faq-sidebar-title,
.faq-cat-btn {
  word-break: keep-all;
  overflow-wrap: normal;
}
.card-dark  .faq-contact-desc{ color: rgba(255,255,255,.5); }
.card-light .faq-contact-desc{ color: var(--gray500); }
.faq-contact-btn { align-self: flex-start; }
/* ===== RESPONSIVE ===== */
@media (max-width: 900px) { .faq-layout{ grid-template-columns: 1fr; gap: 32px; }
.faq-sidebar{ position: static; }
.faq-cat-list{ flex-direction: row; flex-wrap: wrap; gap: 8px; }
.faq-cat-btn{ padding: 8px 16px; border: 1.5px solid var(--gray300); }
.faq-cat-btn::before{ display: none; }
.faq-cat-btn.active{ background: var(--navy); color: #fff; border-color: var(--navy); }
.faq-contact-inner{ grid-template-columns: 1fr; }
}
@media (max-width: 768px) { .c-hero-content{ padding: 100px 0 56px; }
.faq-q-badge, .faq-toggle, .faq-a-badge{ width: 44px; }
.faq-q-text{ padding: 16px 14px; font-size: 14px; }
}
@media (max-width: 767px) {
  .faq-contact-btn {
    align-self: stretch;
    width: 100%;
  }
}
@media (max-width: 520px) {
  .faq-contact-card {
    padding-left: 24px;
    padding-right: 24px;
  }
  .faq-contact-desc {
    text-align: left;
  }
}