/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #1a2332;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, p { margin: 0; }

:root {
  --navy: #0c2340;
  --navy-light: #173d63;
  --orange: #ff6b1a;
  --orange-dark: #e85a0c;
  --bg-light: #f5f8fc;
  --border: #dfe6ee;
  --text: #1a2332;
  --text-soft: #5a6b80;
  --shadow: 0 8px 28px rgba(12, 35, 64, 0.08);
}

/* ===== LAYOUT ===== */
.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}
.container--narrow { max-width: 760px; }
.section { padding: 80px 0; }
.section--alt { background: var(--bg-light); }
.section-eyebrow {
  text-align: center;
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  color: var(--orange);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-title {
  text-align: center;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 900;
  color: var(--navy);
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  line-height: 1.4;
}
.section-lead {
  text-align: center;
  color: var(--text-soft);
  margin-bottom: 48px;
  font-size: 1rem;
}

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header__inner {
  width: min(1100px, 92%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 16px;
}
.header__logo { display: flex; align-items: center; gap: 10px; }
.header__logo-mark {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--navy);
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.02em;
}
.header__logo-text {
  font-size: 0.75rem;
  color: var(--text-soft);
  font-weight: 500;
}
.header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.header__sns {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 8px;
  background: linear-gradient(135deg, #f9ce34 0%, #ee2a7b 50%, #6228d7 100%);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  transition: transform 0.2s;
}
.header__sns:hover { transform: translateY(-1px); }
.header__call {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--orange);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  transition: background 0.2s;
}
.header__call:hover { background: var(--orange-dark); }
.header__call-icon { font-size: 1.1rem; }
.header__call-text { display: flex; flex-direction: column; line-height: 1.2; }
.header__call-label { font-size: 0.7rem; opacity: 0.9; }
.header__call-number {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 60px 0 80px;
  overflow: hidden;
  color: #fff;
  isolation: isolate;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0c2340 0%, #173d63 60%, #1f5085 100%);
  z-index: -2;
}
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,107,26,0.18) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.08) 0%, transparent 40%);
}
.hero__inner {
  width: min(1100px, 92%);
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(90deg, rgba(255,255,255,0.18), rgba(255,255,255,0.08));
  border: 1px solid rgba(255,255,255,0.3);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.hero__badge strong { color: #ffd54a; }
.hero__badge-flag { font-size: 1.1rem; }
.hero__badge-divider { opacity: 0.4; }

.hero__rank {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 600px;
  margin: 28px auto 8px;
}
.hero__rank li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 14px;
  backdrop-filter: blur(4px);
}
.hero__rank-no {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: #ffd54a;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
}
.hero__rank-no strong {
  font-size: 1.8rem;
  font-weight: 900;
  line-height: 1;
}
.hero__rank-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.4;
  color: #fff;
}
.hero__rank-note {
  text-align: center;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}
.hero__title {
  font-size: clamp(1.75rem, 5.5vw, 3rem);
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.hero__title-strong {
  color: var(--orange);
  position: relative;
}
.hero__title-strong::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 4px;
  background: var(--orange);
  opacity: 0.4;
  border-radius: 4px;
}
.hero__lead {
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  line-height: 1.8;
  margin-bottom: 32px;
  opacity: 0.95;
}
.hero__cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}
.hero__features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 20px;
  font-size: 0.875rem;
}
.hero__features li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero__features span {
  color: var(--orange);
  font-weight: 900;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  border-radius: 12px;
  padding: 14px 24px;
  transition: all 0.2s;
  text-align: center;
  font-size: 1rem;
}
.btn--primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 107, 26, 0.4);
}
.btn--primary:hover {
  background: var(--orange-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 107, 26, 0.5);
}
.btn--ghost {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.2);
}
.btn--lg {
  padding: 18px 32px;
  font-size: 1.125rem;
  width: min(420px, 100%);
}
.btn--block { width: 100%; }
.btn__icon { font-size: 1.3rem; }
.btn__main { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.2; }
.btn__label { font-size: 0.85rem; font-weight: 600; opacity: 0.95; }
.btn__sub {
  font-family: 'Inter', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

/* ===== TROUBLE ===== */
.trouble__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.trouble__item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.2s;
}
.trouble__item:hover {
  border-color: var(--orange);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.trouble__icon {
  font-size: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.trouble__item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.5;
}

/* ===== WHY ===== */
.why__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.why__card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px;
  position: relative;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.why__num {
  font-family: 'Inter', sans-serif;
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--orange);
  opacity: 0.15;
  position: absolute;
  top: 12px;
  right: 24px;
  line-height: 1;
}
.why__rank {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  background: linear-gradient(135deg, var(--orange), #ff8a3a);
  color: #fff;
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(255,107,26,0.3);
}
.why__rank-no {
  font-family: 'Inter', sans-serif;
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1;
  margin: 0 2px;
}
.why__source {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-soft);
  margin-top: 32px;
}
.why__card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 12px;
  position: relative;
}
.why__card p {
  font-size: 0.95rem;
  color: var(--text-soft);
  line-height: 1.8;
}

/* ===== VALUE (cheapest reason) ===== */
.value__chain {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
  margin: 32px 0 16px;
}
.value__step {
  background: #fff;
  border-radius: 14px;
  padding: 20px 22px;
  border: 2px solid var(--border);
  position: relative;
}
.value__step--ok {
  border-color: var(--orange);
  background: linear-gradient(180deg, #fff 0%, #fff7f0 100%);
}
.value__step--ng { opacity: 0.85; }
.value__step-tag {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.value__step--ok .value__step-tag { background: var(--orange); }
.value__step-text strong {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 6px;
  line-height: 1.5;
}
.value__step-text span {
  display: block;
  font-size: 0.85rem;
  color: var(--text-soft);
  line-height: 1.7;
}
.value__vs {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text-soft);
}
.value__note {
  text-align: center;
  font-size: 1.05rem;
  color: var(--navy);
  margin-top: 28px;
  line-height: 1.7;
}
.value__note strong { color: var(--orange); }

/* ===== INSTAGRAM CTA ===== */
.insta__cta {
  display: flex;
  align-items: center;
  gap: 18px;
  background: linear-gradient(135deg, #f9ce34 0%, #ee2a7b 50%, #6228d7 100%);
  color: #fff;
  padding: 22px 28px;
  border-radius: 18px;
  max-width: 540px;
  margin: 0 auto;
  box-shadow: 0 12px 32px rgba(238, 42, 123, 0.25);
  transition: transform 0.2s;
}
.insta__cta:hover { transform: translateY(-3px); }
.insta__icon {
  font-size: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.insta__text { display: flex; flex-direction: column; flex: 1; line-height: 1.3; }
.insta__label { font-size: 1rem; font-weight: 800; }
.insta__handle {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  opacity: 0.9;
  margin-top: 4px;
}
.insta__arrow {
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}
.insta__more {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.insta__more a {
  font-size: 0.875rem;
  color: var(--text-soft);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.insta__more a:hover { color: var(--orange); }

/* ===== SERVICE ===== */
.service__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.service__card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
  transition: all 0.2s;
}
.service__card:hover {
  border-color: var(--navy);
  box-shadow: var(--shadow);
}
.service__card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 8px;
  padding-left: 14px;
  border-left: 4px solid var(--orange);
}
.service__card p {
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.75;
}

/* ===== FLOW ===== */
.flow__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  counter-reset: flow;
}
.flow__step {
  background: #fff;
  border-radius: 14px;
  padding: 28px 24px;
  border: 1px solid var(--border);
  position: relative;
}
.flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 14px;
}
.flow__step h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 8px;
}
.flow__step p {
  font-size: 0.875rem;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ===== VOICE ===== */
.voice__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.voice__card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
}
.voice__stars {
  color: #ffc83d;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.voice__text {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 14px;
}
.voice__meta {
  font-size: 0.8rem;
  color: var(--text-soft);
}
.voice__note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-soft);
  margin-top: 24px;
}

/* ===== FAQ ===== */
.faq__list { display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  transition: all 0.2s;
}
.faq__item[open] {
  border-color: var(--navy);
  box-shadow: var(--shadow);
}
.faq__item summary {
  font-weight: 700;
  font-size: 1rem;
  color: var(--navy);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 32px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: '＋';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--orange);
  font-weight: 300;
  transition: transform 0.2s;
}
.faq__item[open] summary::after { content: '−'; }
.faq__item p {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
  font-size: 0.95rem;
  color: var(--text-soft);
  line-height: 1.8;
}

/* ===== CONTACT ===== */
.contact__call {
  display: block;
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: #fff;
  padding: 24px;
  border-radius: 16px;
  text-align: center;
  margin: 32px 0 24px;
  box-shadow: 0 12px 30px rgba(255,107,26,0.35);
  transition: transform 0.2s;
}
.contact__call:hover { transform: translateY(-3px); }
.contact__call-label {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 4px;
  opacity: 0.95;
  font-weight: 600;
}
.contact__call-number {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.75rem, 6vw, 2.5rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  margin: 4px 0;
}
.contact__call-sub {
  display: block;
  font-size: 0.75rem;
  opacity: 0.9;
}

/* ===== FORM ===== */
.form { display: flex; flex-direction: column; gap: 18px; }
.form__row { display: flex; flex-direction: column; gap: 6px; }
.form__label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--navy);
}
.form__required { color: var(--orange); }
.form__input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form__input:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255,107,26,0.15);
}
.form__textarea { resize: vertical; min-height: 120px; }
.form__note {
  font-size: 0.75rem;
  color: var(--text-soft);
  text-align: center;
  margin-top: 4px;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.85);
  padding: 48px 0 24px;
  font-size: 0.875rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer__brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
}
.footer__brand-sub {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}
.footer__info p { margin-bottom: 6px; line-height: 1.7; }
.footer__info a { color: var(--orange); font-weight: 700; }
.footer__sns { margin-top: 12px; }
.footer__sns a { font-weight: 600; }
.service__note, .flow__note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-soft);
  margin-top: 24px;
}
.footer__copy {
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 24px;
}

/* ===== STICKY MOBILE CTA ===== */
.sticky-call {
  position: fixed;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: var(--orange);
  color: #fff;
  padding: 14px 18px;
  border-radius: 14px;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 12px 28px rgba(255,107,26,0.45);
  z-index: 100;
  font-weight: 700;
}
.sticky-call__icon { font-size: 1.4rem; }
.sticky-call__text { display: flex; flex-direction: column; line-height: 1.2; }
.sticky-call__label { font-size: 0.75rem; opacity: 0.95; }
.sticky-call__number {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 720px) {
  .section { padding: 56px 0; }
  .header__logo-text { display: none; }
  .header__sns-text { display: none; }
  .header__sns { padding: 8px 10px; }
  .header__call { padding: 6px 10px; }
  .header__call-label { display: none; }
  .hero { padding: 40px 0 100px; }
  .hero__rank { gap: 8px; }
  .hero__rank li { padding: 14px 8px; }
  .hero__rank-no strong { font-size: 1.4rem; }
  .hero__rank-label { font-size: 0.75rem; }
  .footer__grid { grid-template-columns: 1fr; gap: 20px; }
  .sticky-call { display: flex; }
  body { padding-bottom: 80px; }
  .insta__cta { padding: 18px 20px; gap: 14px; }
  .insta__icon { width: 48px; height: 48px; font-size: 1.7rem; }
  .value__chain { grid-template-columns: 1fr; gap: 12px; }
  .value__vs { text-align: center; padding: 4px 0; }
}

@media (min-width: 721px) {
  .hero__cta { flex-direction: row; justify-content: center; }
}