:root {
  --ink: #17212b;
  --muted: #5f6b76;
  --line: #d9e0e6;
  --paper: #fffaf1;
  --white: #ffffff;
  --green: #0f766e;
  --green-dark: #0b4f4a;
  --yellow: #f5c542;
  --coral: #e56b5d;
  --blue: #2364aa;
  --shadow: 0 18px 45px rgba(23, 33, 43, .14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  background: var(--paper);
  line-height: 1.8;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 250, 241, .92);
  border-bottom: 1px solid rgba(23, 33, 43, .08);
  backdrop-filter: blur(12px);
}

.brand {
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.brand span {
  display: inline-block;
  margin-left: 8px;
  color: var(--green);
  font-size: .82rem;
}

nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: .94rem;
  font-weight: 700;
}

nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  min-height: calc(100vh - 68px);
  padding: clamp(36px, 6vw, 76px) clamp(18px, 5vw, 72px);
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.label {
  color: var(--green);
  font-weight: 800;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(2rem, 4.6vw, 4.55rem);
  line-height: 1.14;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(1.55rem, 2.6vw, 2.55rem);
  line-height: 1.35;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.22rem;
}

.hero-copy > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 0;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.primary {
  color: var(--white);
  background: var(--green);
  box-shadow: 0 12px 24px rgba(15, 118, 110, .22);
}

.primary:hover {
  background: var(--green-dark);
}

.secondary {
  color: var(--green-dark);
  background: #e6f4ef;
}

.trust-list {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
  color: var(--ink);
  font-weight: 700;
}

.trust-list li::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--yellow);
}

.hero-media {
  position: relative;
  margin: 0;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border: 8px solid var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section {
  padding: clamp(48px, 7vw, 92px) clamp(18px, 5vw, 72px);
}

.section > p,
.section-head,
.section > h2,
.section > ol,
.section > .metric-grid,
.contact-intro {
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
}

.section > p,
.split p,
.effect p,
.contact-intro p,
.cards p {
  color: var(--muted);
}

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

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 380px);
  gap: clamp(24px, 4vw, 54px);
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
}

.split img {
  justify-self: center;
  max-height: 280px;
  object-fit: contain;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 1180px;
  margin: 28px auto 0;
}

.cards article {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(23, 33, 43, .07);
}

.cards img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.cards h3,
.cards p {
  padding: 0 18px;
}

.cards h3 {
  margin-top: 18px;
}

.cards p {
  padding-bottom: 18px;
}

.effect {
  color: var(--white);
  background: var(--green-dark);
}

.effect .label,
.effect p {
  color: #d8fff7;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
  margin-bottom: 22px;
}

.metric-grid div {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 8px;
  background: rgba(255, 255, 255, .08);
}

.metric-grid strong {
  display: block;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1;
}

.metric-grid span {
  display: block;
  margin-top: 8px;
  color: #d8fff7;
  font-weight: 700;
}

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

.schedule ol {
  display: grid;
  gap: 14px;
  padding: 0;
  list-style: none;
}

.schedule li {
  padding: 18px 20px;
  border-left: 6px solid var(--coral);
  border-radius: 8px;
  background: #fff4ef;
}

.schedule span {
  display: inline-block;
  min-width: 88px;
  margin-right: 12px;
  color: var(--coral);
  font-weight: 800;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: clamp(34px, 5vw, 58px) clamp(18px, 5vw, 72px);
  color: var(--white);
  background: var(--blue);
}

.cta-band .label,
.cta-band p {
  color: #e5f1ff;
}

.cta-band > div {
  max-width: 860px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(320px, 1fr);
  gap: clamp(24px, 5vw, 64px);
  max-width: 1180px;
  margin: 0 auto;
}

form {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 4vw, 34px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 6px;
  font-weight: 800;
}

label span {
  display: inline-block;
  width: fit-content;
  padding: 1px 8px;
  color: var(--white);
  background: var(--coral);
  border-radius: 999px;
  font-size: .76rem;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid #bdc8d1;
  border-radius: 8px;
  color: var(--ink);
  font: inherit;
  background: var(--white);
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(15, 118, 110, .18);
  border-color: var(--green);
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted);
  font-weight: 700;
}

.consent input {
  width: 18px;
  margin-top: 6px;
}

.honeypot {
  position: absolute;
  left: -9999px;
}

.form-message {
  min-height: 1.6em;
  margin: 0;
  color: var(--green-dark);
  font-weight: 800;
}

.form-message.error {
  color: #b42318;
}

footer {
  padding: 28px 18px;
  color: var(--muted);
  text-align: center;
  background: #f3eadc;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .split,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .cards,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .cta-band {
    align-items: stretch;
    flex-direction: column;
  }

  .schedule span {
    display: block;
    margin: 0 0 4px;
  }
}