:root {
  --bg-main: #f4f9f6;
  --bg-alt: #e7f2ee;
  --surface: #ffffff;
  --border: rgba(25, 81, 71, 0.12);
  --text-primary: #10413b;
  --text-secondary: rgba(16, 65, 59, 0.72);
  --accent: #0f766e;
  --accent-soft: #3aa78f;
  --accent-light: #c5f0e6;
  --shadow: 0 24px 60px -32px rgba(13, 70, 60, 0.4);
  --font-body: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --font-display: 'Shippori Mincho', 'Hiragino Mincho ProN', serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body.theme-forest {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: linear-gradient(180deg, #f7fcfa 0%, #eef6f3 38%, #fafeff 100%);
  line-height: 1.7;
}

.wrap {
  width: min(1180px, 92%);
  margin: 0 auto;
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(244, 249, 246, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(17, 94, 89, 0.12);
}
.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand__text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.04em;
}
.main-nav {
  display: inline-flex;
  gap: 26px;
}
.main-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.main-nav a:hover {
  color: var(--accent);
}

.hero {
  padding: 96px 0 72px;
  background:
    radial-gradient(520px 380px at 12% 18%, rgba(16, 118, 102, 0.16) 0%, transparent 65%),
    radial-gradient(560px 420px at 84% 12%, rgba(58, 167, 143, 0.18) 0%, transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.94));
  border-bottom: 1px solid rgba(13, 64, 55, 0.08);
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  gap: 48px;
  align-items: start;
}
.hero__content h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  margin: 12px 0 24px;
  line-height: 1.25;
  letter-spacing: 0.02em;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 13px;
  font-weight: 600;
  color: rgba(16, 65, 59, 0.64);
}
.lead {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn--solid {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #ffffff;
  box-shadow: 0 12px 30px -14px rgba(11, 94, 82, 0.5);
}
.btn--solid:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px -16px rgba(11, 94, 82, 0.55);
}
.btn--ghost {
  background: transparent;
  color: var(--accent);
  border-color: rgba(15, 118, 110, 0.32);
}
.btn--ghost:hover {
  background: rgba(15, 118, 110, 0.08);
}
.btn--sm {
  padding: 8px 18px;
  font-size: 13px;
  border-radius: 999px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
}
.hero-stats div {
  background: var(--surface);
  border-radius: 18px;
  padding: 18px 20px;
  border: 1px solid rgba(15, 118, 110, 0.12);
  box-shadow: 0 16px 32px -28px rgba(17, 94, 89, 0.6);
}
.hero-stats dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(16,65,59,0.6);
}
.hero-stats dd {
  margin: 8px 0 0;
  font-size: 24px;
  font-weight: 700;
  font-family: var(--font-display);
}
.hero-stats dd span {
  font-size: 13px;
  margin-left: 4px;
  color: rgba(16,65,59,0.6);
}

.hero-panel {
  background: var(--surface);
  border-radius: 28px;
  padding: 32px;
  border: 1px solid rgba(17, 94, 89, 0.14);
  box-shadow: var(--shadow);
}
.hero-panel h2 {
  font-family: var(--font-display);
  margin: 0 0 20px;
  font-size: 24px;
}
.progress-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 18px;
}
.progress-list li div:first-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.label { font-weight: 600; font-size: 14px; }
.value { font-weight: 700; font-size: 14px; }
.value.positive { color: #047857; }
.value.neutral { color: #4b5563; }
.value.negative { color: #b91c1c; }
.bar {
  height: 10px;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.12);
  overflow: hidden;
}
.bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), rgba(58, 167, 143, 0.8));
}
.panel-note {
  margin-top: 20px;
  font-size: 12px;
  color: rgba(16,65,59,0.58);
}

.section {
  padding: 80px 0;
}
.section--alt {
  background: var(--bg-alt);
}
.section__head {
  margin-bottom: 40px;
  max-width: 720px;
}
.section__head h2 {
  font-family: var(--font-display);
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 38px);
}
.section__head p {
  font-size: 16px;
  color: var(--text-secondary);
}

.card-grid {
  display: grid;
  gap: 28px;
}
.card-grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.card {
  background: var(--surface);
  border-radius: 24px;
  padding: 30px;
  border: 1px solid var(--border);
  box-shadow: 0 30px 60px -44px rgba(17, 94, 89, 0.45);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 0;
}
.card__lead {
  margin: 0;
  color: var(--text-secondary);
}
.triple-metric {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.triple-metric li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  background: rgba(197, 240, 230, 0.32);
  padding: 12px 16px;
  border-radius: 16px;
  font-weight: 600;
}
.timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}
.timeline li {
  position: relative;
  padding-left: 18px;
}
.timeline li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.timeline strong {
  display: block;
  font-weight: 700;
}
.timeline span {
  color: var(--text-secondary);
}
.finance-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.finance-stats div {
  text-align: center;
  padding: 16px;
  border-radius: 18px;
  background: rgba(15, 118, 110, 0.08);
}
.finance-stats span {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}
.finance-stats strong {
  font-size: 22px;
  font-family: var(--font-display);
}
.note {
  font-size: 13px;
  color: var(--text-secondary);
}

.insight-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.insight-board article {
  background: var(--surface);
  border-radius: 24px;
  padding: 28px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px -40px rgba(17, 94, 89, 0.45);
}
.insight-board h3 {
  margin-top: 0;
  font-family: var(--font-display);
}
.insight-board ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.insight-board li {
  display: flex;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(15, 118, 110, 0.08);
}
.insight-board strong.positive { color: #047857; }
.insight-board strong.neutral { color: #4b5563; }
.insight-board strong.negative { color: #b91c1c; }
.insight-board table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.insight-board th,
.insight-board td {
  padding: 12px 10px;
  border-bottom: 1px solid rgba(17, 94, 89, 0.12);
  text-align: left;
}
.callout {
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.12), rgba(58, 167, 143, 0.08));
}
.callout .tag {
  margin-top: 16px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(16,65,59,0.6);
}

.workflow {
  display: grid;
  gap: 36px;
}
.workflow__intro h2 {
  font-family: var(--font-display);
  margin: 0 0 12px;
}
.workflow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.workflow__steps li {
  background: var(--surface);
  border-radius: 24px;
  padding: 26px;
  border: 1px solid var(--border);
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.step-index {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--accent);
  line-height: 1;
}
.workflow__steps h3 {
  margin: 0 0 8px;
}
.workflow__steps p {
  margin: 0;
  color: var(--text-secondary);
}

.downloads__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
.download-list {
  margin: 24px 0 0;
  padding-left: 20px;
  color: var(--text-secondary);
}
.download-form {
  background: var(--surface);
  border-radius: 26px;
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px -40px rgba(17, 94, 89, 0.45);
  display: grid;
  gap: 18px;
}
.download-form label,
.download-form legend {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
}
.download-form input,
.download-form select {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(17, 94, 89, 0.22);
  font-family: inherit;
  font-size: 15px;
}
.download-form input:focus,
.download-form select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(17, 94, 89, 0.18);
}
.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.download-form fieldset {
  border: 1px dashed rgba(17, 94, 89, 0.3);
  border-radius: 18px;
  padding: 18px 20px;
  display: grid;
  gap: 10px;
}
.download-form fieldset label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}
.form-note {
  margin: 0;
  font-size: 13px;
  color: rgba(16,65,59,0.58);
}

.faq {
  display: grid;
  gap: 16px;
}
.faq h2 {
  font-family: var(--font-display);
  margin: 0 0 12px;
}
.faq details {
  background: var(--surface);
  border-radius: 18px;
  border: 1px solid var(--border);
  padding: 18px 22px;
}
.faq summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq p {
  margin: 12px 0 0;
  color: var(--text-secondary);
}

.cta {
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.2), rgba(58, 167, 143, 0.18));
}
.cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.cta__inner h2 {
  font-family: var(--font-display);
  margin: 0 0 10px;
}
.cta__inner p {
  margin: 0;
  color: var(--text-secondary);
}

.footer {
  background: rgba(16, 65, 59, 0.08);
  border-top: 1px solid rgba(17, 94, 89, 0.18);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-size: 13px;
}
.footer nav {
  display: inline-flex;
  gap: 18px;
}
.footer nav a {
  color: var(--text-secondary);
  text-decoration: none;
}
.footer nav a:hover { color: var(--accent); }

.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--surface);
  border-top: 1px solid rgba(17, 94, 89, 0.18);
  box-shadow: 0 -16px 40px -28px rgba(17, 94, 89, 0.5);
  display: none;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  z-index: 100;
}
.cookie-banner.show { transform: translateY(0); }
.cookie-banner__content {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 22px;
  width: min(1060px, 94%);
  margin: 0 auto;
}
.cookie-banner__content h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
}
.cookie-banner__content p { margin: 0; color: var(--text-secondary); }
.cookie-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
}
.cookie-close {
  background: transparent;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--text-secondary);
}
.cookie-close:hover { color: var(--accent); }
.cookie-settings {
  width: min(700px, 92%);
  margin: 0 auto 22px;
  background: var(--surface);
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 22px 24px;
  display: grid;
  gap: 14px;
}
.cookie-option {
  display: grid;
  gap: 6px;
}
.cookie-option label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
}
.cookie-option p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
}

@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero-panel { order: -1; }
  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .finance-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .insight-board { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workflow__steps { grid-template-columns: 1fr; }
  .downloads__grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .masthead__inner { flex-wrap: wrap; gap: 14px; }
  .main-nav { width: 100%; justify-content: flex-start; flex-wrap: wrap; gap: 16px; }
  .hero-stats {
    grid-template-columns: 1fr;
  }
  .card-grid--three {
    grid-template-columns: 1fr;
  }
  .insight-board { grid-template-columns: 1fr; }
  .cta__inner { flex-direction: column; align-items: flex-start; }
  .cookie-banner__content { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  .finance-stats { grid-template-columns: 1fr; }
  .download-form fieldset { grid-template-columns: 1fr; }
}