:root {
  color-scheme: light;
  --ink: #211914;
  --muted: #6d6258;
  --paper: #fbf8f1;
  --paper-strong: #f1eadf;
  --white: #fffdf8;
  --green: #174c35;
  --green-2: #0f3628;
  --green-soft: #e7f0e9;
  --gold: #b78b39;
  --gold-soft: #efe4ce;
  --line: #ded1bf;
  --rose: #a9544c;
  --shadow: 0 18px 42px rgba(48, 35, 24, 0.14);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding-bottom: 84px;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.75;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
  word-break: normal;
  word-break: auto-phrase;
  overflow-wrap: normal;
  line-break: strict;
}

h1,
h2 {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  letter-spacing: 0;
  text-wrap: balance;
}

h1 {
  margin-bottom: 16px;
  color: var(--ink);
  font-size: clamp(34px, 9.5vw, 54px);
  line-height: 1.22;
}

h1 span,
h2 span {
  color: var(--green);
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(28px, 7vw, 42px);
  line-height: 1.32;
}

h3 {
  margin-bottom: 6px;
  font-size: 17px;
  line-height: 1.45;
  text-wrap: balance;
}

p {
  margin-bottom: 0;
  text-wrap: pretty;
}

.skip-link {
  position: fixed;
  left: 12px;
  top: -80px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 6px;
  background: var(--ink);
  color: var(--white);
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(222, 209, 191, 0.78);
  background: rgba(255, 253, 248, 0.92);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 32px, 1100px);
  min-height: 56px;
  margin: 0 auto;
  gap: 14px;
}

.site-header p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.site-header a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 94px;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 6px;
  background: var(--green);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

main {
  overflow: hidden;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.hero {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: calc(100svh - 56px);
  padding: 12px 12px 24px;
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.94), rgba(251, 248, 241, 0.98)),
    radial-gradient(circle at top right, rgba(183, 139, 57, 0.18), transparent 42%);
}

.hero__content,
.section {
  width: min(100%, 430px);
  margin-inline: auto;
}

.hero__kicker,
.section-kicker {
  margin-bottom: 10px;
  color: var(--rose);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
}

.hero__kicker {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 14px;
  border: 1px solid rgba(183, 139, 57, 0.45);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.82);
  color: var(--green);
}

.hero__lead {
  color: #3f352e;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.9;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 22px 0 18px;
}

.trust-grid div {
  display: grid;
  place-items: center;
  min-height: 78px;
  padding: 10px 6px;
  border: 1px solid rgba(222, 209, 191, 0.96);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 8px 20px rgba(48, 35, 24, 0.07);
  text-align: center;
}

.trust-grid strong {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.3;
}

.trust-grid span {
  color: var(--green);
  font-size: 15px;
  font-weight: 900;
  line-height: 1.28;
}

.primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 62px;
  padding: 12px 18px;
  border: 1px solid rgba(183, 139, 57, 0.88);
  border-radius: 999px;
  background: linear-gradient(180deg, #246241 0%, var(--green-2) 100%);
  box-shadow: 0 8px 0 rgba(15, 54, 40, 0.16), 0 16px 34px rgba(15, 54, 40, 0.22);
  color: var(--white);
  font-size: 18px;
  font-weight: 900;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
}

.secondary-link {
  display: table;
  margin: 16px auto 0;
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
  text-underline-offset: 4px;
}

.hero__visual {
  width: min(100%, 448px);
  margin: 0 auto;
  filter: drop-shadow(0 20px 36px rgba(48, 35, 24, 0.18));
}

.hero__visual a {
  display: block;
  text-decoration: none;
}

.hero__visual img {
  width: 100%;
  border-radius: 28px;
}

.section {
  padding: 54px 20px;
}

.intro {
  border-top: 1px solid var(--line);
  background: var(--white);
}

.concern-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.concern-list article {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.concern-list span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--green);
  color: var(--white);
  font-weight: 900;
}

.concern-list h3,
.concern-list p {
  grid-column: 2;
}

.concern-list p,
.section-copy p,
.reason li,
.faq p,
.final-cta p {
  color: var(--muted);
}

.image-section {
  display: grid;
  gap: 22px;
  background: var(--paper);
}

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

.section-copy {
  align-self: center;
}

.diagram {
  width: min(100%, 410px);
  margin: 0 auto;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.diagram-link {
  display: block;
  width: min(100%, 410px);
  margin: 0 auto;
  color: inherit;
  text-decoration: none;
}

.diagram-link .diagram {
  width: 100%;
}

.section-cta {
  width: min(100%, 410px);
  min-height: 56px;
  margin: 18px auto 0;
  font-size: 17px;
}

.reason {
  background:
    linear-gradient(180deg, rgba(23, 76, 53, 0.94), rgba(15, 54, 40, 0.96)),
    var(--green);
  color: var(--white);
}

.reason .section-kicker {
  color: #e8c982;
}

.reason h2 {
  color: var(--white);
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 14px 14px 14px 44px;
  border: 1px solid rgba(255, 253, 248, 0.22);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.08);
  color: rgba(255, 253, 248, 0.92);
  font-weight: 750;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 21px;
  width: 12px;
  height: 7px;
  border-left: 3px solid #e8c982;
  border-bottom: 3px solid #e8c982;
  transform: rotate(-45deg);
}

.faq {
  background: var(--white);
}

.faq details {
  border-top: 1px solid var(--line);
}

.faq details:last-child {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  padding: 18px 4px;
  color: var(--ink);
  font-weight: 900;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  float: right;
  color: var(--green);
  font-size: 22px;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "-";
}

.faq p {
  padding: 0 4px 18px;
}

.final-cta {
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.94), rgba(239, 228, 206, 0.76)),
    var(--paper);
  text-align: center;
}

.final-cta .primary-cta {
  margin-top: 22px;
}

.footer {
  width: min(100% - 32px, 430px);
  margin: 0 auto;
  padding: 24px 0 34px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.footer p {
  margin-bottom: 8px;
}

.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(222, 209, 191, 0.78);
  background: rgba(255, 253, 248, 0.94);
  backdrop-filter: blur(12px);
}

.sticky-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 430px);
  min-height: 52px;
  margin: 0 auto;
  border-radius: 999px;
  background: var(--green);
  color: var(--white);
  font-weight: 900;
  text-decoration: none;
}

@media (min-width: 860px) {
  body {
    padding-bottom: 0;
  }

  .hero {
    padding: 28px 32px 56px;
  }

  .hero__content,
  .section {
    width: auto;
    max-width: none;
    margin-inline: 0;
  }

  .hero__visual {
    width: min(448px, 48svh, 100%);
  }

  .section {
    width: min(100% - 64px, 1040px);
    margin-inline: auto;
    padding: 76px 0;
  }

  .intro {
    width: 100%;
    max-width: none;
  }

  .intro > * {
    width: min(100% - 64px, 1040px);
    margin-left: auto;
    margin-right: auto;
  }

  .concern-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .concern-list article {
    grid-template-columns: 1fr;
  }

  .concern-list h3,
  .concern-list p {
    grid-column: auto;
  }

  .image-section {
    grid-template-columns: minmax(0, 1fr) 390px;
    align-items: center;
    gap: 56px;
  }

  .image-section--reverse {
    grid-template-columns: 390px minmax(0, 1fr);
  }

  .image-section--reverse .section-copy {
    grid-column: 2;
    grid-row: 1;
  }

  .image-section--reverse .diagram {
    grid-column: 1;
    grid-row: 1;
  }

  .image-section--reverse .diagram-link {
    grid-column: 1;
    grid-row: 1;
  }

  .reason {
    width: 100%;
    max-width: none;
    padding-left: max(32px, calc((100% - 1040px) / 2));
    padding-right: max(32px, calc((100% - 1040px) / 2));
  }

  .check-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sticky-cta {
    display: none;
  }
}