:root {
  --color-ink: #17313b;
  --color-muted: #5d7077;
  --color-blue: #1677b8;
  --color-blue-dark: #0e5b8e;
  --color-aqua: #e9f8f8;
  --color-mint: #c9efe8;
  --color-coral: #f47f65;
  --color-lime: #d8ef87;
  --color-white: #ffffff;
  --color-line: #d8e5e8;
  --color-soft: #f7fbfa;
  --shadow-soft: 0 20px 50px rgba(23, 49, 59, 0.12);
  --radius: 8px;
  --container: min(1120px, calc(100% - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-white);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-break: strict;
  line-height: 1.7;
}

h1,
h2,
h3,
p,
li,
summary,
dt,
dd,
.button {
  overflow-wrap: break-word;
}

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

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-coral);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-140%);
  padding: 10px 14px;
  color: var(--color-white);
  background: var(--color-blue-dark);
  border-radius: var(--radius);
}

.skip-link:focus {
  transform: translateY(0);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(216, 229, 232, 0.76);
  backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
  box-shadow: 0 12px 30px rgba(23, 49, 59, 0.08);
}

.header-inner {
  width: var(--container);
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-logo {
  width: auto;
  height: 58px;
  object-fit: contain;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 40px;
  color: var(--color-white);
  background: var(--color-blue);
  border-radius: 6px;
  font-size: 13px;
}

.brand-text {
  display: grid;
  gap: 0;
  line-height: 1.2;
}

.brand-text small {
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:not(.nav-cta):hover {
  color: var(--color-blue);
}

.nav-cta {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  color: var(--color-white);
  background: var(--color-blue);
  border-radius: 999px;
}

.nav-line-cta {
  color: #123f28;
  background: #d7f6df;
  border: 1px solid #b7ecc4;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-white);
  cursor: pointer;
}

.nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--color-ink);
}

.hero {
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 18%, rgba(216, 239, 135, 0.42), transparent 32%),
    linear-gradient(135deg, #f8fffd 0%, #edf9ff 56%, #fff7f1 100%);
}

.hero-inner {
  width: var(--container);
  min-height: calc(100svh - 76px);
  margin: 0 auto;
  padding: 72px 0 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.86fr);
  align-items: center;
  gap: 54px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--color-blue-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 760px;
  font-size: 56px;
  line-height: 1.13;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero h1 span {
  display: block;
}

.hero-content,
.hero-guide,
.section-copy,
.feature-list,
.area-layout > *,
.faq-layout > * {
  min-width: 0;
}

.hero-lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--color-muted);
  font-size: 18px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border: 2px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: var(--color-white);
  background: var(--color-blue);
  box-shadow: 0 16px 30px rgba(22, 119, 184, 0.2);
}

.button-primary:hover {
  background: var(--color-blue-dark);
}

.button-line {
  color: #123f28;
  background: #d7f6df;
  border-color: #b7ecc4;
}

.button-line:hover {
  background: #c8f1d3;
}

.button-line-large {
  min-width: 220px;
  min-height: 58px;
  padding-inline: 28px;
  font-size: 17px;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 720px;
  margin: 34px 0 0;
}

.trust-strip div {
  padding: 16px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(216, 229, 232, 0.9);
  border-radius: var(--radius);
}

.trust-strip dt {
  color: var(--color-blue-dark);
  font-size: 22px;
  font-weight: 900;
  line-height: 1.2;
}

.trust-strip dd {
  margin: 6px 0 0;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.hero-guide {
  position: relative;
  min-height: 500px;
  overflow: hidden;
  padding: 44px;
  color: var(--color-ink);
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--color-line);
  border-left: 7px solid var(--color-blue);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(23, 49, 59, 0.08);
}

.hero-guide::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.55;
  background: repeating-linear-gradient(
    0deg,
    transparent 0,
    transparent 54px,
    rgba(201, 239, 232, 0.55) 55px,
    rgba(201, 239, 232, 0.55) 57px
  );
  pointer-events: none;
}

.hero-guide > * {
  position: relative;
}

.hero-guide-kicker {
  margin: 0;
  color: var(--color-blue-dark);
  font-size: 13px;
  font-weight: 900;
}

.hero-guide-title {
  margin: 16px 0 40px;
  font-size: 34px;
  font-weight: 900;
  line-height: 1.35;
}

.hero-guide-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--color-line);
}

.hero-guide-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  min-height: 86px;
  border-bottom: 1px solid var(--color-line);
}

.hero-guide-list > li > span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--color-blue-dark);
  background: var(--color-aqua);
  border-radius: 50%;
  font-size: 13px;
  font-weight: 900;
}

.hero-guide-list > li:nth-child(2) > span {
  color: var(--color-ink);
  background: var(--color-lime);
}

.hero-guide-list > li:nth-child(3) > span {
  color: var(--color-ink);
  background: var(--color-coral);
}

.hero-guide-list div {
  display: grid;
  gap: 2px;
}

.hero-guide-list strong {
  font-size: 20px;
}

.hero-guide-list small {
  color: var(--color-muted);
  font-weight: 700;
}

section {
  scroll-margin-top: 96px;
}

.section-inner {
  width: var(--container);
  margin: 0 auto;
  padding: 88px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2,
.section-copy h2,
.coach-body h2,
.area-layout h2,
.contact-inner h2 {
  margin: 0;
  font-size: 40px;
  line-height: 1.25;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-heading p:not(.section-kicker),
.section-copy p:not(.section-kicker),
.coach-body p:not(.section-kicker),
.area-layout p:not(.section-kicker),
.contact-inner p:not(.section-kicker) {
  color: var(--color-muted);
}

.problem-section,
.lesson-section,
.faq-section {
  background: var(--color-white);
}

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

.problem-card,
.price-card {
  padding: 24px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.problem-card {
  min-height: 224px;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 34px;
  color: var(--color-blue-dark);
  background: var(--color-aqua);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
}

h3 {
  margin: 18px 0 8px;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: 0;
}

.problem-card p,
.feature-list p,
.lesson-card p,
.flow-list p,
.price-card p,
.faq-list p {
  margin: 0;
  color: var(--color-muted);
}

.features-section,
.flow-section,
.price-section {
  background: var(--color-soft);
}

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

.two-column,
.area-layout,
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  align-items: start;
  gap: 56px;
}

.section-copy {
  position: sticky;
  top: 108px;
}

.feature-list {
  display: grid;
  gap: 14px;
}

.feature-list article {
  padding: 22px 24px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-left: 5px solid var(--color-coral);
  border-radius: var(--radius);
}

.feature-list h3 {
  margin-top: 0;
}

.credential-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.credential-card {
  min-height: 250px;
  padding: 26px;
  background: linear-gradient(180deg, #ffffff 0%, #f7fbfa 100%);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.credential-card h3 {
  margin: 16px 0 10px;
}

.credential-card p {
  margin: 0;
  color: var(--color-muted);
}

.credential-label {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 6px 12px;
  color: var(--color-blue-dark);
  background: var(--color-aqua);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
  line-height: 1.2;
}

.coach-section {
  background: var(--color-aqua);
}

.coach-layout {
  display: block;
}

.coach-body {
  max-width: 900px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  font-weight: 800;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 16px;
  height: 16px;
  background: var(--color-lime);
  border: 4px solid var(--color-blue);
  border-radius: 50%;
}

.lesson-card {
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.lesson-card-head {
  position: relative;
  min-height: 88px;
  overflow: hidden;
  padding: 20px;
  display: flex;
  align-items: center;
  color: var(--color-blue-dark);
  background: var(--color-aqua);
  border-bottom: 1px solid var(--color-line);
}

.lesson-card-head-water {
  color: var(--color-blue-dark);
  background: var(--color-aqua);
}

.lesson-card-head::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.42;
  background: repeating-linear-gradient(
    0deg,
    transparent 0,
    transparent 24px,
    rgba(255, 255, 255, 0.95) 25px,
    rgba(255, 255, 255, 0.95) 27px
  );
}

.lesson-card-head > * {
  position: relative;
}

.lesson-card-head span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--color-white);
  background: var(--color-blue);
  border-radius: 50%;
  font-size: 13px;
  font-weight: 900;
}

.lesson-card-head-form {
  color: var(--color-ink);
  background: #f4f9df;
}

.lesson-card-head-support {
  color: var(--color-ink);
  background: #fff1ed;
}

.lesson-card-head-form span {
  color: var(--color-ink);
  background: var(--color-lime);
}

.lesson-card-head-support span {
  color: var(--color-ink);
  background: var(--color-coral);
}

.lesson-card-body {
  padding: 22px;
}

.lesson-card h3 {
  margin-top: 0;
}

.line-cta-section {
  background: linear-gradient(135deg, #f3fff7 0%, #e9f8f8 100%);
}

.line-cta-inner {
  width: var(--container);
  margin: 0 auto;
  padding: 56px 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
}

.line-cta-inner h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.35;
  text-wrap: balance;
}

.line-cta-inner p:not(.section-kicker) {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--color-muted);
}

.flow-list {
  display: grid;
  gap: 26px;
  max-width: 860px;
  margin: 0 auto;
  padding: 0;
  position: relative;
  list-style: none;
}

.flow-list::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 18px;
  width: 3px;
  background: #dfe9d4;
}

.flow-list li {
  min-height: auto;
  padding: 0 0 0 72px;
  position: relative;
}

.flow-list span {
  display: grid;
  place-items: center;
  position: absolute;
  top: 0;
  left: 0;
  width: 38px;
  height: 38px;
  color: var(--color-ink);
  background: var(--color-coral);
  border-radius: 50%;
  font-weight: 900;
}

.flow-list h3 {
  margin: 0 0 6px;
}

.area-section {
  background: #fdfbf6;
}

.area-panel {
  padding: 28px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: 0 14px 32px rgba(23, 49, 59, 0.08);
}

.area-panel h3 {
  margin-top: 0;
}

.area-panel .note {
  margin-bottom: 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-line);
  font-size: 14px;
}

.area-stack {
  display: grid;
  gap: 16px;
}

.dot-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 1.1em;
  color: var(--color-muted);
}

.price-card {
  padding: 28px;
  background: #d9ecff;
  border-color: #c6e0fa;
}

.price-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 860px;
  margin: 0 auto;
}

.price-card h3 {
  margin-top: 0;
  color: #004f9e;
}

.price-card .price-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  margin: 28px 0 22px;
  color: #004f9e;
  font-weight: 700;
}

.price-card .price-main strong {
  display: inline;
  margin: 0;
  color: var(--color-blue-dark);
  font-size: 22px;
  line-height: 1.25;
  white-space: nowrap;
}

.price-card p {
  color: #0b4d86;
}

.price-card p + p {
  margin-top: 14px;
}

.price-meta {
  margin-bottom: 0;
  font-weight: 700;
}

.price-card.is-featured {
  border-color: rgba(22, 119, 184, 0.38);
  box-shadow: 0 18px 36px rgba(22, 119, 184, 0.12);
}

.price-notes {
  display: grid;
  gap: 4px;
  max-width: 900px;
  margin-top: 28px;
  color: var(--color-muted);
}

.price-notes p {
  margin: 0;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.faq-list summary {
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 900;
}

.faq-list summary::marker {
  color: var(--color-blue);
}

.faq-list details[open] {
  border-color: #b9d8e5;
}

.faq-list p {
  padding: 0 22px 20px;
}

.contact-section {
  padding: 0 20px 88px;
  background: var(--color-white);
}

.contact-inner {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 56px;
  color: var(--color-ink);
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 62px,
      rgba(255, 255, 255, 0.68) 63px,
      rgba(255, 255, 255, 0.68) 65px
    ),
    linear-gradient(135deg, #f3fff7 0%, #e9f8f8 100%);
  border: 1px solid var(--color-line);
  border-top: 7px solid var(--color-coral);
  border-radius: 8px;
}

.contact-inner .section-kicker {
  color: var(--color-blue-dark);
}

.contact-inner p {
  color: var(--color-muted);
}

.site-footer {
  background: #102c34;
  color: var(--color-white);
}

.footer-inner {
  width: var(--container);
  min-height: 104px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
}

.footer-brand {
  margin: 0;
  font-weight: 900;
}

.footer-copy {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.footer-line-button {
  min-height: 54px;
  padding-inline: 24px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 76px;
    right: 20px;
    left: 20px;
    display: none;
    max-height: calc(100svh - 96px);
    overflow-y: auto;
    padding: 18px;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
  }

  .site-nav.is-open {
    display: grid;
    gap: 12px;
  }

  .site-nav a {
    padding: 10px 8px;
  }

  .nav-cta {
    min-height: 48px;
    text-align: center;
  }

  .nav-line-cta {
    padding: 12px 14px;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-toggle-line {
    transition: transform 160ms ease, opacity 160ms ease;
  }

  .hero-inner {
    min-height: auto;
    max-height: none;
    grid-template-columns: 1fr;
    padding-top: 56px;
  }

  .hero h1 {
    font-size: 48px;
  }

  .section-heading h2,
  .section-copy h2,
  .coach-body h2,
  .area-layout h2,
  .contact-inner h2 {
    font-size: 34px;
  }

  .hero-guide {
    max-width: 720px;
  }

  .two-column,
  .area-layout,
  .faq-layout,
  .line-cta-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .line-cta-inner {
    align-items: stretch;
  }

  .line-cta-inner .button {
    width: 100%;
  }

  .section-copy {
    position: static;
  }

  .problem-grid,
  .lesson-grid,
  .credential-grid {
    grid-template-columns: 1fr 1fr;
  }

  .price-grid {
    grid-template-columns: 1fr;
    max-width: 680px;
  }

  .coach-section {
    background: var(--color-aqua);
  }
}

@media (max-width: 680px) {
  :root {
    --container: min(100% - 28px, 1120px);
  }

  .header-inner {
    min-height: 68px;
  }

  .site-nav {
    top: 68px;
    right: 14px;
    left: 14px;
    max-height: calc(100svh - 84px);
  }

  .brand-mark {
    width: 50px;
    height: 38px;
  }

  .brand-logo {
    height: 48px;
  }

  .hero-inner {
    padding: 42px 0 44px;
    gap: 32px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions,
  .contact-actions {
    display: grid;
  }

  .button {
    width: 100%;
    white-space: normal;
  }

  .trust-strip {
    grid-template-columns: 1fr;
  }

  .hero-guide {
    min-height: auto;
    padding: 30px 24px;
  }

  .hero-guide-title {
    margin-bottom: 28px;
    font-size: 27px;
  }

  .section-inner {
    padding: 64px 0;
  }

  .line-cta-inner {
    padding: 44px 0;
  }

  .line-cta-inner h2 {
    font-size: 24px;
  }

  .problem-grid,
  .lesson-grid,
  .price-grid,
  .flow-list,
  .credential-grid {
    grid-template-columns: 1fr;
  }

  .credential-card {
    min-height: auto;
  }

  .problem-card,
  .flow-list li,
  .price-card {
    min-height: auto;
  }

  .price-card .price-main {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .section-heading h2,
  .section-copy h2,
  .coach-body h2,
  .area-layout h2,
  .contact-inner h2 {
    font-size: 28px;
  }

  .contact-section {
    padding: 0 14px 64px;
  }

  .contact-inner {
    padding: 34px 22px;
  }

  .footer-inner {
    min-height: 120px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 30px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}