:root {
  --ink: #2f241f;
  --muted: #746860;
  --line: #eadfd6;
  --paper: #fffaf3;
  --white: #ffffff;
  --orange: #f47e00;
  --orange-dark: #8d4200;
  --pink: #cc0e64;
  --yellow: #ffd95c;
  --green: #54c75a;
  --blue: #36a9e1;
  --violet: #5c3aa8;
  --shadow: 0 18px 48px rgba(92, 62, 38, 0.16);
  --radius: 20px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Yu Gothic", "YuGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  --font-serif: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif;
}

html {
  box-sizing: border-box;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  line-height: 1.9;
  letter-spacing: 0;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(255, 167, 196, 0.16) 0 8%, transparent 8% 13%, rgba(83, 183, 236, 0.14) 13% 21%, transparent 21% 27%, rgba(255, 217, 92, 0.14) 27% 34%, transparent 34% 40%, rgba(84, 199, 90, 0.12) 40% 48%, transparent 48% 54%, rgba(92, 58, 168, 0.11) 54% 62%, transparent 62% 68%, rgba(255, 140, 65, 0.12) 68% 76%, transparent 76% 82%, rgba(83, 183, 236, 0.13) 82% 90%, transparent 90%),
    var(--paper);
  opacity: 0.5;
}

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

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 30;
  transform: translateY(-140%);
  background: var(--ink);
  color: var(--white);
  padding: 8px 12px;
  border-radius: 8px;
  text-decoration: none;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--white);
  border-bottom: 1px solid rgba(234, 223, 214, 0.9);
  backdrop-filter: blur(18px);
  transition: background-color 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.82);
  border-bottom-color: rgba(234, 223, 214, 0.62);
  box-shadow: 0 10px 28px rgba(92, 62, 38, 0.08);
}

.header-inner {
  width: min(1160px, calc(100% - 32px));
  min-height: 78px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  flex: 0 0 auto;
  text-decoration: none;
}

.brand img {
  width: 232px;
}

.global-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

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

.global-nav a:hover,
.site-footer a:hover {
  color: var(--orange-dark);
}

.header-cta {
  flex: 0 0 auto;
  padding: 10px 18px;
  border-radius: 999px;
  color: var(--white);
  background: var(--orange);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(244, 126, 0, 0.22);
}

.section {
  padding: 92px 0;
}

.container {
  width: min(1120px, calc(100% - 36px));
  margin-inline: auto;
}

.narrow {
  max-width: 820px;
}

.center {
  text-align: center;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 70px 0 84px;
  background:
    radial-gradient(circle at top left, rgba(255, 217, 92, 0.32), transparent 34%),
    radial-gradient(circle at 92% 12%, rgba(204, 14, 100, 0.12), transparent 28%);
}

.hero-bg {
  position: absolute;
  inset: auto -80px -180px auto;
  width: 430px;
  height: 430px;
  background: rgba(84, 199, 90, 0.14);
  border-radius: 50%;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 0.43fr 0.57fr;
  align-items: center;
  gap: 42px;
}

.hero-label {
  margin: 0 0 12px;
  color: var(--orange-dark);
  font-size: 16px;
  font-weight: 800;
}

.hero h1,
.section h2 {
  margin: 0;
  color: #583002;
  font-family: var(--font-serif);
  line-height: 1.34;
  font-weight: 800;
}

.hero h1 {
  font-size: clamp(34px, 4vw, 52px);
}

.hero-lead {
  max-width: 620px;
  margin: 26px 0 0;
  font-size: 17px;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  color: var(--white);
  background: var(--orange);
  box-shadow: 0 14px 30px rgba(244, 126, 0, 0.26);
}

.button-outline {
  color: var(--pink);
  background: var(--white);
  border: 2px solid rgba(204, 14, 100, 0.25);
}

.button-pink {
  color: var(--white);
  background: var(--pink);
  box-shadow: 0 14px 30px rgba(204, 14, 100, 0.24);
}

.thanks {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-media {
  position: relative;
}

.hero-media a {
  display: block;
}

.hero-media::before {
  content: "";
  position: absolute;
  inset: 24px -18px -20px 18px;
  z-index: -1;
  background: linear-gradient(135deg, rgba(255, 217, 92, 0.95), rgba(84, 199, 90, 0.72), rgba(54, 169, 225, 0.72), rgba(204, 14, 100, 0.58));
  border-radius: 28px;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center top;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.section-mark {
  width: 62px;
  margin: 0 auto 18px;
}

.section h2 {
  font-size: clamp(28px, 3.6vw, 44px);
  text-wrap: pretty;
}

.section h3 {
  margin: 0;
  color: #4d2a04;
  font-size: 22px;
  line-height: 1.55;
}

.intro .narrow p,
.effect .narrow p {
  margin: 24px auto 0;
  font-size: 17px;
  font-weight: 700;
}

.intro .intro-heading {
  font-size: clamp(16px, 5.05vw, 44px);
}

.intro .intro-heading span {
  display: block;
  white-space: nowrap;
}

.intro-buy {
  margin-top: 28px;
}

.use-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.use-card,
.step-card,
.effect-grid article,
.developer-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 36px rgba(92, 62, 38, 0.08);
}

.use-card {
  overflow: hidden;
}

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

.use-card h3 {
  padding: 24px 24px 0;
}

.use-card ul {
  margin: 12px 0 0;
  padding: 0 24px 26px 42px;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 46px;
}

.howto {
  padding-top: clamp(56px, 6vw, 72px);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(255, 243, 224, 0.76));
}

.howto-heading {
  margin-bottom: clamp(28px, 3.2vw, 42px);
  text-align: center;
}

.howto-heading h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4.3vw, 52px);
  line-height: 1.2;
  white-space: nowrap;
}

.howto-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  align-items: stretch;
  gap: clamp(28px, 4vw, 46px);
}

.howto-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
  padding: clamp(22px, 2.4vw, 28px);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(234, 223, 214, 0.9);
  border-radius: 24px;
  box-shadow: 0 14px 36px rgba(92, 62, 38, 0.08);
}

.howto-panel > p {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.8;
}

.howto h2,
.effect h2,
.training h2,
.product h2,
.developers h2,
.facilitator h2 {
  margin-bottom: 22px;
}

.howto .howto-heading h2 {
  margin-bottom: 0;
}

.rule-box {
  margin-top: 18px;
  padding: 20px 24px;
  border-radius: 18px;
  background: var(--white);
  border: 3px dashed rgba(244, 126, 0, 0.32);
}

.rule-box ol {
  margin: 8px 0 0;
  padding-left: 24px;
  font-weight: 700;
  line-height: 1.7;
}

.movie-frame {
  align-self: start;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--ink);
  border: 10px solid var(--white);
  border-radius: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.movie-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (min-width: 1101px) {
  .howto-layout .movie-frame {
    height: 100%;
    aspect-ratio: auto;
  }
}

.keyword-row {
  margin: 54px auto 34px;
  border-radius: 18px;
  background: var(--white);
  box-shadow: 0 14px 34px rgba(92, 62, 38, 0.08);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.step-card {
  position: relative;
  overflow: hidden;
}

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

.step-card span {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: var(--white);
  background: var(--pink);
  border: 4px solid var(--white);
  border-radius: 50%;
  font-weight: 900;
}

.step-card h3,
.step-card p {
  padding-inline: 22px;
}

.step-card h3 {
  margin-top: 20px;
  font-size: 19px;
}

.step-card p {
  margin: 10px 0 24px;
}

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

.effect .narrow {
  max-width: 1040px;
}

.effect .narrow h2 {
  font-size: clamp(30px, 3.2vw, 42px);
  white-space: nowrap;
}

.effect .narrow p {
  max-width: 980px;
  font-size: 18px;
  line-height: 2;
}

.effect-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 42px;
}

.effect-grid article {
  padding: 28px 22px;
  border-top: 6px solid var(--orange);
}

.effect-grid article:nth-child(2) {
  border-top-color: var(--green);
}

.effect-grid article:nth-child(3) {
  border-top-color: var(--blue);
}

.effect-grid article:nth-child(4) {
  border-top-color: var(--violet);
}

.effect-grid h3 {
  font-size: 20px;
}

.effect-grid p {
  margin: 12px 0 0;
}

.training {
  background:
    linear-gradient(135deg, rgba(255, 217, 92, 0.24), rgba(255, 255, 255, 0.78)),
    var(--paper);
}

.training-panel {
  padding: 34px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.training-panel img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 22px;
}

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

.check-list li {
  position: relative;
  padding-left: 30px;
  font-weight: 700;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 14px;
  height: 14px;
  background: linear-gradient(135deg, var(--orange), var(--pink));
  border-radius: 50%;
}

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

.product-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 52px;
}

.product-media {
  padding: 28px;
  background: linear-gradient(135deg, rgba(255, 217, 92, 0.46), rgba(54, 169, 225, 0.16));
  border-radius: 30px;
}

.product-media img {
  filter: drop-shadow(0 22px 30px rgba(92, 62, 38, 0.16));
}

.price {
  margin: 4px 0 18px;
  color: var(--pink);
  font-size: 34px;
  font-weight: 900;
  line-height: 1.2;
}

.price span {
  color: var(--muted);
  font-size: 16px;
}

.product-detail {
  margin: 24px 0 26px;
  display: grid;
  gap: 14px;
}

.product-detail div {
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.product-detail dt {
  color: var(--orange-dark);
  font-weight: 900;
}

.product-detail dd {
  margin: 4px 0 0;
}

.developers {
  background: linear-gradient(180deg, rgba(255, 250, 243, 0.96), rgba(255, 255, 255, 0.96));
}

.message {
  margin: 18px 0 0;
  color: var(--orange-dark);
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 800;
}

.developer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 44px;
}

.developer-card {
  padding: 30px;
}

.developer-card .role {
  display: inline-flex;
  margin: 8px 0 16px;
  padding: 4px 12px;
  color: var(--white);
  background: var(--orange);
  border-radius: 999px;
  font-weight: 800;
}

.developer-card ul {
  margin: 0 0 18px;
  padding-left: 22px;
  font-weight: 700;
}

.developer-card a {
  color: var(--pink);
  font-weight: 800;
}

.facilitator {
  background: linear-gradient(135deg, rgba(204, 14, 100, 0.08), rgba(84, 199, 90, 0.16), rgba(54, 169, 225, 0.14));
}

.facilitator-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: 38px;
}

.section h2.facilitator-heading {
  font-size: clamp(24px, 3.35vw, 38px);
}

.section h2.facilitator-heading span {
  display: block;
  white-space: nowrap;
}

.social-card {
  display: block;
  padding: 16px;
  background: var(--white);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.social-card img {
  border-radius: 16px;
}

.site-footer {
  padding: 46px 0;
  color: var(--ink);
  background: var(--white);
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 34px;
}

.site-footer img {
  width: 230px;
  border-radius: 2px;
}

.site-footer p {
  margin: 18px 0 0;
  font-size: 13px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px 24px;
  font-weight: 700;
}

@media (max-width: 1100px) {
  .howto-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1020px) {
  .header-inner {
    min-height: auto;
    padding: 14px 0;
    flex-wrap: wrap;
  }

  .global-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero-grid,
  .split,
  .howto-layout,
  .product-grid,
  .facilitator-grid {
    grid-template-columns: 1fr;
  }

  .hero-media {
    order: -1;
  }

  .use-grid,
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .effect-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  body {
    line-height: 1.8;
  }

  .section {
    padding: 64px 0;
  }

  .header-inner {
    width: min(100% - 24px, 1160px);
    gap: 12px;
  }

  .brand img {
    width: 166px;
  }

  .header-cta {
    margin-left: auto;
    padding-inline: 12px;
    font-size: 13px;
  }

  .hero {
    padding-top: 42px;
  }

  .hero-bg {
    display: none;
  }

  .hero h1 {
    font-size: clamp(31px, 10vw, 42px);
  }

  .hero-lead,
  .intro .narrow p,
  .effect .narrow p {
    font-size: 16px;
  }

  .effect .narrow h2 {
    white-space: normal;
  }

  .howto {
    padding-top: 52px;
  }

  .howto-heading h2 {
    font-size: clamp(21px, 6.7vw, 36px);
  }

  .howto-panel {
    padding: 22px;
  }

  .section h2.facilitator-heading {
    font-size: clamp(19px, 5.6vw, 30px);
  }

  .hero-actions,
  .facilitator .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
    padding-inline: 16px;
  }

  .use-grid,
  .steps-grid,
  .effect-grid,
  .developer-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .training-panel {
    padding: 20px;
    border-radius: 22px;
  }

  .keyword-row {
    margin-top: 34px;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }
}