/* ========================================
   Google Fonts
======================================== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

/* ========================================
   Reset & Base
======================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: #222;
  font-size: 15px;
  line-height: 1.8;
  background: #fff;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ========================================
   Variables
======================================== */
:root {
  --pink: #F84B8A;
  --pink-dark: #d63070;
  --dark: #1a1a1a;
  --gray-bg: #f6f6f6;
}

/* ========================================
   共通
======================================== */
.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 20px;
}

.section { padding: 60px 0; }

.section-title {
  text-align: center;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 36px;
}

.section-title .accent { color: var(--pink); }

/* ピンクボタン */
.btn-pink {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--pink);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  padding: 16px 32px;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
  width: 100%;
  max-width: 420px;
}

.btn-pink:hover { background: var(--pink-dark); }
.btn-pink .arrow { font-size: 1.2rem; }

/* ========================================
   Header
======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
  max-width: 780px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-sub {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: #555;
}

.logo-main {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  color: var(--dark);
}

.header-btn {
  background: var(--pink);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 4px;
  white-space: nowrap;
  transition: background 0.2s;
}

.header-btn:hover { background: var(--pink-dark); }

/* ========================================
   Hero
======================================== */
.hero {
  margin-top: 64px;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  position: relative;
  overflow: hidden;
  padding: 48px 20px 0;
  min-height: 520px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  opacity: 0.55;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin: 0 auto;
}

.hero-sub {
  font-size: 0.85rem;
  color: #ddd;
  margin-bottom: 10px;
}

.hero-title {
  font-size: 2.4rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 20px;
}

.hero-title .accent { color: var(--pink); }

.hero-badge {
  display: inline-block;
  background: var(--pink);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 16px;
  margin-bottom: 32px;
}

/* Stats */
.hero-stats {
  display: flex;
  gap: 0;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.stat-item {
  flex: 1;
  min-width: 100px;
  text-align: center;
  padding: 16px 8px;
  border-right: 1px solid rgba(255,255,255,0.15);
}

.stat-item:last-child { border-right: none; }

.stat-label {
  font-size: 0.7rem;
  color: #ccc;
  margin-bottom: 4px;
  display: block;
}

.stat-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--pink);
  line-height: 1;
}

.stat-unit {
  font-size: 0.85rem;
  color: #fff;
}

.stat-note {
  font-size: 0.65rem;
  color: #ccc;
  display: block;
  margin-top: 2px;
}

.hero-cta {
  padding-bottom: 48px;
}

.hero-cta .btn-pink {
  font-size: 1.1rem;
  padding: 20px 32px;
  max-width: 100%;
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(248,75,138,0.4);
}

/* ========================================
   Pain Points
======================================== */
.pain { background: #fff; }

.pain-title {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 28px;
}

.pain-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
}

.pain-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
}

.pain-check {
  color: var(--pink);
  font-size: 1rem;
  margin-top: 3px;
  flex-shrink: 0;
}

/* ========================================
   Reasons
======================================== */
.reasons { background: var(--gray-bg); }

.reason-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.reason-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.reason-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: #e8e8e8;
}

.reason-card-body {
  padding: 20px;
}

.reason-num {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--pink);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.reason-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.5;
}

.reason-card p {
  font-size: 0.875rem;
  color: #555;
  line-height: 1.8;
}

/* ========================================
   Testimonials
======================================== */
.testimonials { background: #fff; }

.testimonial-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.testimonial-card {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.testimonial-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  background: #e0e0e0;
  flex-shrink: 0;
}

.testimonial-meta h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: #222;
  margin-bottom: 2px;
}

.testimonial-meta span {
  font-size: 0.75rem;
  color: #888;
}

.testimonial-card p {
  font-size: 0.875rem;
  color: #444;
  line-height: 1.8;
}

/* ========================================
   Campaign
======================================== */
.campaign {
  background: var(--dark);
  padding: 48px 20px;
  text-align: center;
}

.campaign-inner {
  max-width: 780px;
  margin: 0 auto;
}

.campaign-badge {
  display: inline-block;
  background: var(--pink);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 2px;
  margin-bottom: 24px;
}

.campaign-pricing {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.price-item { text-align: center; }

.price-label {
  font-size: 0.78rem;
  color: #aaa;
  margin-bottom: 6px;
}

.price-value {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.price-before {
  font-size: 0.95rem;
  color: #aaa;
  text-decoration: line-through;
}

.price-after {
  font-size: 3rem;
  font-weight: 900;
  color: var(--pink);
  line-height: 1;
}

.price-yen {
  font-size: 1.4rem;
  color: var(--pink);
  font-weight: 700;
}

.price-divider {
  font-size: 1.4rem;
  color: #aaa;
  padding: 0 8px;
}

.campaign-note {
  font-size: 0.75rem;
  color: #888;
  margin-bottom: 28px;
}

.campaign .btn-pink {
  margin: 0 auto;
  font-size: 1.05rem;
  padding: 18px 32px;
  box-shadow: 0 4px 16px rgba(248,75,138,0.4);
}

/* ========================================
   FAQ
======================================== */
.faq { background: #fff; }

.faq-list {
  border-top: 1px solid #e0e0e0;
}

.faq-item {
  border-bottom: 1px solid #e0e0e0;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 4px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  color: #222;
  gap: 12px;
}

.faq-question .q-label {
  color: var(--pink);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.faq-question .q-text { flex: 1; }

.faq-icon {
  width: 28px;
  height: 28px;
  border: 1px solid #ccc;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #888;
  flex-shrink: 0;
  transition: transform 0.3s, background 0.3s, color 0.3s;
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  background: var(--pink);
  color: #fff;
  border-color: var(--pink);
}

.faq-answer {
  display: none;
  padding: 0 4px 20px;
  font-size: 0.875rem;
  color: #555;
  line-height: 1.9;
}

/* ========================================
   Footer
======================================== */
.footer {
  background: var(--dark);
  padding: 28px 20px;
  text-align: center;
}

.footer p {
  font-size: 0.75rem;
  color: #888;
}

/* ========================================
   固定CTAバナー（スマホ最下部）
======================================== */
.fixed-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 99;
  background: var(--pink);
  padding: 12px 20px;
  display: none;
}

.fixed-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  gap: 8px;
}

/* ========================================
   アニメーション（フェードイン）
======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   レスポンシブ（480px以上）
======================================== */
@media (min-width: 480px) {
  .reason-cards {
    display: grid;
    grid-template-columns: 1fr;
  }

  .fixed-cta { display: block; }

  /* 固定CTAの分だけ最終セクション余白追加 */
  .footer { padding-bottom: 72px; }
}

@media (min-width: 640px) {
  .hero-title { font-size: 2.8rem; }
  .reason-cards { grid-template-columns: repeat(3, 1fr); }
  .testimonial-cards { display: grid; grid-template-columns: repeat(3, 1fr); }
  .pain-list { grid-template-columns: 1fr 1fr; }
}