:root {
  --ink: #17211b;
  --muted: #5c675f;
  --bg: #f6f8f2;
  --paper: #ffffff;
  --green: #2f6f4e;
  --green-dark: #1f5037;
  --green-soft: #eaf3ea;
  --yellow: #fff2c7;
  --gold: #f3c847;
  --coral: #e45d4f;
  --blue: #4e82d8;
  --line: #d8e2d7;
  --shadow: 0 16px 34px rgba(23, 33, 27, .08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Yu Gothic", "Meiryo", system-ui, sans-serif;
  line-height: 1.75;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.header-inner,
.wrap {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  color: var(--green-dark);
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

.nav a {
  text-decoration: none;
  font-weight: 700;
}

.hero {
  padding: 54px 0 38px;
  background:
    radial-gradient(circle at 80% 8%, rgba(243, 200, 71, .24), transparent 34%),
    linear-gradient(135deg, #ffffff 0%, #f4faf1 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  align-items: center;
  gap: 36px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--green-dark);
  font-weight: 800;
  border-radius: 999px;
  font-size: 14px;
}

h1,
h2,
h3 {
  letter-spacing: 0;
  line-height: 1.32;
}

h1 {
  margin: 18px 0 14px;
  font-size: clamp(34px, 5vw, 58px);
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3.4vw, 42px);
}

h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.lead {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 19px;
}

.note {
  margin: 0 0 22px;
  padding: 14px 16px;
  background: var(--yellow);
  border-left: 8px solid var(--gold);
  color: #473a13;
  font-weight: 700;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  background: var(--green);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 900;
  border: 2px solid var(--green);
  box-shadow: 0 10px 22px rgba(47, 111, 78, .22);
}

.btn.alt {
  background: var(--paper);
  color: var(--green-dark);
  box-shadow: none;
}

.btn.bank {
  background: #2f9fd6;
  border-color: #2f9fd6;
}

.micro {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--paper);
}

.section {
  padding: 58px 0;
}

.section.tight {
  padding: 38px 0;
}

.section.white {
  background: var(--paper);
}

.section.green {
  background: var(--green-dark);
  color: #fff;
}

.section.green .lead,
.section.green .micro {
  color: rgba(255, 255, 255, .82);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 8px 22px rgba(23, 33, 27, .05);
}

.card.highlight {
  border-top: 8px solid var(--green);
}

.card.gold {
  border-top: 8px solid var(--gold);
}

.card.blue {
  border-top: 8px solid var(--blue);
}

.card.coral {
  border-top: 8px solid var(--coral);
}

.card p,
.card li {
  color: var(--muted);
}

.card ul,
.card ol {
  padding-left: 1.25em;
  margin: 8px 0 0;
}

.problem-list {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
}

.problem {
  padding: 13px 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 8px solid var(--coral);
  border-radius: 8px;
  font-weight: 800;
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.step {
  position: relative;
  min-height: 132px;
  padding: 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 8px solid var(--green);
  border-radius: 8px;
}

.step strong {
  display: block;
  margin-bottom: 6px;
  color: var(--green-dark);
}

.step span {
  color: var(--muted);
  font-size: 14px;
}

.price {
  font-size: 38px;
  line-height: 1.1;
  color: var(--green);
  font-weight: 900;
}

.price small {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 14px;
}

.bank-price {
  margin: 12px 0;
  padding: 10px 12px;
  background: var(--yellow);
  border-left: 7px solid var(--gold);
  border-radius: 6px;
  color: #513f0f;
  font-weight: 900;
}

.safe {
  border-left: 8px solid var(--green);
  background: var(--green-soft);
  padding: 16px 18px;
  border-radius: 8px;
  color: var(--green-dark);
  font-weight: 800;
}

.placeholder {
  border: 2px dashed var(--coral);
  background: #fff6f4;
  color: #7c2a22;
  padding: 14px;
  border-radius: 8px;
  font-weight: 800;
}

.faq details {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  margin-top: 10px;
}

.faq summary {
  cursor: pointer;
  font-weight: 900;
  color: var(--green-dark);
}

.footer {
  padding: 28px 0;
  color: var(--muted);
  background: #eef4ec;
  text-align: center;
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .flow {
    grid-template-columns: 1fr;
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .nav {
    justify-content: flex-start;
  }

}