:root {
  --primary: #10B981;
  --primary-dark: #059669;
  --primary-light: #34D399;
  --primary-pop: #6EE7B7;
  --primary-bg: #D1FAE5;
  --primary-bg-soft: #ECFDF5;
  --primary-bg-mist: #F0FDF4;

  --text: #1F2937;
  --text-muted: #6B7280;
  --text-soft: #4B5563;
  --text-on-primary: #FFFFFF;

  --bg: #FFFFFF;
  --bg-soft: #F9FAFB;
  --border: #E5E7EB;
  --border-soft: #F3F4F6;

  --font-display: 'Plus Jakarta Sans', 'M PLUS Rounded 1c', 'Zen Maru Gothic', 'Noto Sans JP', system-ui, sans-serif;
  --font-body: 'DM Sans', 'M PLUS Rounded 1c', 'Noto Sans JP', system-ui, sans-serif;
  --font-jp: 'M PLUS Rounded 1c', 'Zen Maru Gothic', 'Noto Sans JP', system-ui, sans-serif;
  --font-jp-friendly: 'Zen Maru Gothic', 'M PLUS Rounded 1c', 'Noto Sans JP', system-ui, sans-serif;

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  --shadow-sm: 0 2px 10px rgba(16, 185, 129, 0.08);
  --shadow-md: 0 10px 28px rgba(16, 185, 129, 0.14);
  --shadow-lg: 0 22px 52px rgba(16, 185, 129, 0.18);
  --shadow-pop: 0 4px 0 rgba(5, 150, 105, 0.15);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary-dark);
  text-decoration: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.sp-only {
  display: inline;
}
@media (min-width: 768px) {
  .sp-only { display: none; }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
}

.logo-img {
  display: block;
  height: 32px;
  width: auto;
}
.logo-img-full { height: 32px; }
.logo-img-mark { height: 32px; }

.logo-text {
  font-size: 18px;
  font-family: var(--font-jp);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 18px;
  background: var(--primary);
  color: var(--text-on-primary);
  border-radius: var(--radius-pill);
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 14px;
  transition: background 200ms ease;
}
.header-cta:hover { background: var(--primary-dark); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 15px;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: transform 200ms ease, box-shadow 200ms ease, background 200ms ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--text-on-primary);
  box-shadow: var(--shadow-md), var(--shadow-pop);
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-lg), 0 8px 0 rgba(5, 150, 105, 0.15);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-lg { padding: 18px 36px; font-size: 17px; }
.btn-xl { padding: 22px 40px; font-size: 18px; width: 100%; }

/* Hero */
.hero {
  padding: 56px 0 72px;
  background:
    radial-gradient(ellipse at top right, var(--primary-bg) 0%, transparent 60%),
    radial-gradient(ellipse at bottom left, var(--primary-bg-soft) 0%, transparent 50%),
    var(--bg);
}

.hero-inner {
  text-align: center;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary-dark);
  margin-bottom: 16px;
}

.hero-headline {
  font-family: var(--font-jp-friendly);
  font-size: clamp(26px, 7vw, 42px);
  font-weight: 900;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}
.hero-headline .hl-accent {
  color: var(--primary-dark);
  position: relative;
  display: inline-block;
}
.hero-headline .hl-accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 8px;
  background: var(--primary-pop);
  border-radius: var(--radius-pill);
  z-index: -1;
  opacity: 0.5;
}

.hero-sub {
  font-family: var(--font-jp);
  font-size: clamp(15px, 4vw, 18px);
  font-weight: 500;
  color: var(--text-soft);
  margin-bottom: 36px;
}

.hero-image {
  position: relative;
  margin: 0 auto 36px;
  max-width: 560px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.hero-image img {
  display: block;
  width: 100%;
  height: auto;
}

.hero-pains {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 560px;
  margin: 0 auto 36px;
  text-align: left;
}
.pain-line {
  font-family: var(--font-jp);
  font-size: 14px;
  color: var(--text-soft);
  padding: 14px 18px;
  background: var(--bg);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary-pop);
  box-shadow: var(--shadow-sm);
}

.hero-note {
  margin-top: 14px;
  font-family: var(--font-jp);
  font-size: 12px;
  color: var(--text-muted);
}

/* Section common */
section {
  padding: 72px 0;
}

.section-eyebrow {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary-dark);
  text-align: center;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-jp-friendly);
  font-size: clamp(24px, 6vw, 36px);
  font-weight: 900;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.section-lead {
  font-family: var(--font-jp);
  font-size: 15px;
  color: var(--text-soft);
  text-align: center;
  margin-bottom: 48px;
  line-height: 1.9;
}

/* Features */
.features {
  background: var(--bg-soft);
}

.feature-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 880px) {
  .feature-list { grid-template-columns: repeat(3, 1fr); }
}

.feature-card {
  background: var(--bg);
  border-radius: var(--radius-xl);
  padding: 36px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 200ms ease, box-shadow 200ms ease;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-soft);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-pop);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-bg);
  color: var(--primary-dark);
  border-radius: var(--radius-md);
  margin-bottom: 18px;
}
.feature-icon svg { width: 32px; height: 32px; }

.feature-tag {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--primary);
  margin-bottom: 8px;
}

.feature-title {
  font-family: var(--font-jp-friendly);
  font-size: 19px;
  font-weight: 900;
  line-height: 1.55;
  margin-bottom: 14px;
  color: var(--text);
}

.feature-body {
  font-family: var(--font-jp);
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-soft);
}
.feature-body strong {
  color: var(--primary-dark);
  font-weight: 700;
}

.feature-checklist {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}
.feature-checklist li {
  position: relative;
  padding-left: 24px;
  font-family: var(--font-jp);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.75;
  color: var(--text-soft);
  margin-bottom: 6px;
}
.feature-checklist li:last-child { margin-bottom: 0; }
.feature-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 16px;
  height: 16px;
  background: var(--primary-bg);
  border-radius: 50%;
  display: flex;
}
.feature-checklist li::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 8px;
  height: 4px;
  border-left: 2px solid var(--primary-dark);
  border-bottom: 2px solid var(--primary-dark);
  transform: rotate(-45deg);
  transform-origin: left center;
}

/* Income highlight */
.income-highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--text-on-primary);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  text-align: center;
  margin: 12px 0;
}
.income-tag {
  font-family: var(--font-jp);
  font-size: 12px;
  font-weight: 700;
  opacity: 0.9;
  margin-bottom: 4px;
}
.income-amount {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-display);
  margin-bottom: 8px;
}
.income-plus {
  font-size: 28px;
  font-weight: 800;
}
.income-num {
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
}
.income-unit {
  font-family: var(--font-jp);
  font-size: 18px;
  font-weight: 700;
  margin-left: 2px;
}
.income-detail {
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 500;
  opacity: 0.95;
}
.income-detail strong { font-weight: 700; }

.income-subnote {
  font-family: var(--font-jp);
  font-size: 11px;
  font-weight: 500;
  opacity: 0.85;
  margin-top: 4px;
  letter-spacing: 0.02em;
}

.income-disclaimer {
  font-family: var(--font-jp);
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 4px;
}

/* Voice */
.voice {
  background: var(--bg);
}

.voice-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 880px) {
  .voice-list { grid-template-columns: repeat(3, 1fr); }
}

.voice-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}
.voice-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}

.voice-no {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--primary);
  transform: rotate(8deg);
  background: var(--primary-bg);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.voice-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  overflow: hidden;
}
.voice-avatar svg { width: 60px; height: 60px; }

.voice-name {
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.voice-transition {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-jp);
  font-size: 13px;
  margin-bottom: 12px;
}
.voice-before {
  color: var(--text-muted);
  background: var(--bg-soft);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}
.voice-arrow {
  color: var(--primary);
  font-weight: 700;
}
.voice-after {
  color: var(--primary-dark);
  font-weight: 700;
  background: var(--primary-bg);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.voice-badge {
  display: inline-block;
  font-family: var(--font-jp);
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-dark);
  background: var(--primary-bg);
  border: 1px solid var(--primary-light);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.voice-comment {
  font-family: var(--font-jp);
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-soft);
  text-align: left;
}

/* CTA */
.cta {
  background: linear-gradient(180deg, var(--primary-bg-soft) 0%, var(--bg) 100%);
}

.cta-eyebrow { color: var(--primary-dark); }

.cta-title {
  font-family: var(--font-jp-friendly);
  font-size: clamp(26px, 6.5vw, 38px);
  font-weight: 900;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.cta-lead {
  font-family: var(--font-jp);
  font-size: 15px;
  color: var(--text-soft);
  text-align: center;
  margin-bottom: 40px;
  line-height: 1.9;
}

.cta-form {
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg);
  padding: 36px 26px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-soft);
}

.form-row {
  margin-bottom: 20px;
}
.form-row label {
  display: block;
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.required {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  color: var(--text-on-primary);
  background: var(--primary);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: 4px;
  vertical-align: middle;
}

.form-row input,
.form-row select {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  font-family: var(--font-jp);
  font-size: 15px;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 200ms ease, background 200ms ease, box-shadow 200ms ease;
}
.form-row input:focus,
.form-row select:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.form-row-half {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 600px) {
  .form-row-half { grid-template-columns: 1fr 1fr; }
}
.form-col label {
  display: block;
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.form-note {
  margin-top: 16px;
  font-family: var(--font-jp);
  font-size: 11px;
  line-height: 1.7;
  color: var(--text-muted);
  text-align: center;
}

/* FAQ */
.faq {
  background: var(--bg);
}

.faq-list {
  max-width: 680px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  transition: border-color 200ms ease, box-shadow 200ms ease;
  overflow: hidden;
}
.faq-item:hover { border-color: var(--primary-pop); }
.faq-item[open] {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  list-style: none;
  padding: 18px 56px 18px 22px;
  cursor: pointer;
  font-family: var(--font-jp-friendly);
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  position: relative;
  line-height: 1.55;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-bg);
  color: var(--primary-dark);
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  transition: background 200ms ease, color 200ms ease, transform 200ms ease;
}
.faq-item[open] summary::after {
  content: "−";
  background: var(--primary);
  color: var(--text-on-primary);
}
.faq-item summary:hover { opacity: 0.85; }

.faq-item p {
  padding: 0 22px 20px;
  font-family: var(--font-jp);
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--text-soft);
  margin: 0;
}

/* Footer */
.site-footer {
  background: var(--bg-soft);
  padding: 40px 0 32px;
  text-align: center;
  border-top: 1px solid var(--border-soft);
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-weight: 700;
}
.footer-org {
  font-family: var(--font-jp);
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 6px;
}
.footer-copy {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* About / MVV */
.about {
  background: var(--bg-soft);
}

.mvv-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 880px) {
  .mvv-list { grid-template-columns: repeat(3, 1fr); }
}

.mvv-card {
  background: var(--bg);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  border-top: 4px solid var(--primary-light);
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.mvv-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.mvv-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--primary-dark);
  background: var(--primary-bg);
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}

.mvv-title {
  font-family: var(--font-jp-friendly);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.55;
  color: var(--text);
  margin-bottom: 12px;
}

.mvv-body {
  font-family: var(--font-jp);
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--text-soft);
}

/* PC Refinements */
@media (min-width: 768px) {
  .hero { padding: 88px 0 96px; }
  section { padding: 96px 0; }
  .feature-card { padding: 36px 28px; }
  .voice-card { padding: 32px 26px; }
  .cta-form { padding: 48px 40px; }
}