:root {
  --bg: #fffdf8;
  --paper: #ffffff;
  --ink: #111827;
  --muted: #5b6678;
  --line: #eadfd2;
  --soft: #fff4df;
  --soft-blue: #eef6ff;
  --accent: #2777d8;
  --accent-2: #ee7b50;
  --accent-3: #2d9b7f;
  --shadow: 0 20px 54px rgba(89, 71, 52, 0.12);
  --radius: 8px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Noto Sans JP", system-ui, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, #fff4df 0, #fffdf8 390px),
    var(--bg);
  line-height: 1.8;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent-2);
  color: #fff;
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a:hover {
  color: var(--accent);
}

.hero,
.section,
.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: 56px;
  padding-top: 38px;
  padding-bottom: 72px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(3rem, 7vw, 6.1rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.16rem;
  line-height: 1.35;
}

.lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.1rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  font-weight: 800;
  line-height: 1.2;
}

.button.primary {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.button.secondary {
  color: var(--ink);
  background: var(--paper);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(31, 51, 90, 0.12);
}

.button.full {
  width: 100%;
}

.small-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.panel-preview {
  background: #293348;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 18px;
  color: #f9fbff;
}

.panel-top {
  display: flex;
  gap: 7px;
  margin-bottom: 18px;
}

.panel-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #8ea0bf;
}

.search-row {
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  margin-bottom: 12px;
  color: #dce8ff;
  background: rgba(255, 255, 255, 0.06);
  font-weight: 700;
}

.command-list {
  display: grid;
  gap: 10px;
}

.command {
  min-height: 46px;
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(255, 255, 255, 0.06);
  color: #c8d6ee;
}

.command.active {
  background: var(--accent-2);
  color: #fff;
}

.notice-strip {
  max-width: var(--max);
  margin: 0 auto 12px;
  padding: 18px 24px;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.notice-strip .section-kicker {
  margin: 0;
}

.notice-strip div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  color: var(--muted);
}

.notice-strip strong {
  color: var(--ink);
}

kbd {
  min-width: 38px;
  padding: 3px 7px;
  border-radius: 6px;
  font: inherit;
  font-size: 0.78rem;
  text-align: center;
  color: inherit;
  background: rgba(255, 255, 255, 0.16);
}

.section {
  padding-top: 92px;
  padding-bottom: 92px;
  border-top: 1px solid var(--line);
}

.intro-grid,
.media-section,
.price-section,
.note-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 52px;
  align-items: start;
}

.intro-grid p,
.media-copy p,
.price-copy p,
.support-section p,
.notes p,
.price-box p {
  color: var(--muted);
}

.section-head {
  margin-bottom: 36px;
}

.section-head p {
  max-width: 700px;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.feature-grid article {
  min-height: 230px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.feature-number {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 800;
}

.video-frame {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #101827;
  box-shadow: var(--shadow);
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.video-placeholder {
  display: grid;
  place-items: center;
  color: #fff;
  text-align: center;
}

.video-placeholder p {
  margin-bottom: 4px;
  font-size: 1.3rem;
  font-weight: 800;
}

.video-placeholder span {
  color: #b9c6db;
}

.step-list {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.step-list li {
  counter-increment: step;
  position: relative;
  min-height: 168px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft-blue);
}

.step-list li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: 34px;
  color: var(--accent);
  font-weight: 800;
}

.price-box {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.price {
  margin-bottom: 12px;
  color: var(--ink) !important;
  font-size: clamp(2.5rem, 5vw, 4.8rem);
  font-weight: 800;
  line-height: 1;
}

.price span {
  color: var(--muted);
  font-size: 1.1rem;
}

.notes {
  display: grid;
  gap: 12px;
}

.notes p {
  margin: 0;
  padding: 18px 20px;
  border-left: 4px solid var(--accent);
  background: var(--paper);
}

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

.faq-list details {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.4);
}

.faq-list summary {
  cursor: pointer;
  padding: 22px 0;
  font-weight: 800;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  float: right;
  color: var(--accent);
  font-size: 1.3rem;
}

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

.faq-list p {
  max-width: 820px;
  margin: -8px 0 22px;
  color: var(--muted);
}

.support-section {
  text-align: center;
}

.support-section p {
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.support-links {
  justify-content: center;
}

.footer {
  padding-top: 36px;
  padding-bottom: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer a:hover {
  color: var(--accent);
}

.legal-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 54px 24px 92px;
}

.legal-hero {
  padding-bottom: 42px;
  border-bottom: 1px solid var(--line);
}

.legal-hero h1 {
  margin-bottom: 18px;
  font-size: clamp(2.6rem, 6vw, 4.8rem);
}

.legal-hero p {
  max-width: 720px;
  color: var(--muted);
}

.legal-date {
  margin-top: 20px;
  font-size: 0.92rem;
}

.legal-body {
  padding-top: 42px;
}

.legal-body h2 {
  margin: 42px 0 12px;
  font-size: 1.35rem;
  line-height: 1.45;
}

.legal-body h2:first-child {
  margin-top: 0;
}

.legal-body p {
  color: var(--muted);
}

.legal-body a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.commerce-table {
  display: grid;
  border-top: 1px solid var(--line);
}

.commerce-table > div {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.commerce-table h2 {
  margin: 0;
  font-size: 1rem;
}

.commerce-table p {
  margin: 0;
}

.legal-callout {
  margin-top: 42px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft-blue);
}

.legal-callout h2 {
  margin-top: 0;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    flex-wrap: wrap;
  }

  .hero,
  .intro-grid,
  .media-section,
  .price-section,
  .note-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 36px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

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

  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .commerce-table > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 560px) {
  .hero,
  .section,
  .footer,
  .site-header {
    padding-left: 18px;
    padding-right: 18px;
  }

  h1 {
    font-size: 3rem;
  }

  .feature-grid,
  .step-list {
    grid-template-columns: 1fr;
  }

  .notice-strip {
    grid-template-columns: 1fr;
    gap: 8px;
    padding-left: 18px;
    padding-right: 18px;
  }

  .feature-grid article,
  .step-list li {
    min-height: auto;
  }

  .site-nav {
    gap: 14px;
    font-size: 0.88rem;
  }
}