:root {
  color-scheme: light;
  --ink: #102033;
  --muted: #64758b;
  --line: #d7e5f4;
  --surface: #edf5ff;
  --paper: #ffffff;
  --forest: #0b2d5f;
  --blue: #1d6da8;
  --gold: #c89b3c;
  --aqua: #dcecff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, #071a34 0, #0a2f63 320px, var(--surface) 321px, var(--surface) 100%);
  color: var(--ink);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif;
  line-height: 1.7;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 64px);
  border-bottom: 1px solid rgba(169, 203, 239, 0.24);
  background: rgba(7, 26, 52, 0.94);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #f5f9ff;
  text-decoration: none;
}

.brand-lockup strong,
.brand-lockup small {
  display: block;
}

.brand-lockup small,
.top-nav,
.eyebrow,
.panel-label,
.package-kicker {
  color: #657589;
  font-size: 0.78rem;
  letter-spacing: 0;
}

.site-header .brand-lockup small,
.site-header .top-nav {
  color: rgba(225, 239, 255, 0.72);
}

.brand-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(145deg, #155eac, #0b2d5f);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 10px 30px rgba(4, 17, 38, 0.28);
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.top-nav span {
  border: 1px solid rgba(169, 203, 239, 0.28);
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.08);
  white-space: nowrap;
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  gap: clamp(28px, 5vw, 64px);
  align-items: end;
  padding: clamp(52px, 8vw, 96px) clamp(20px, 5vw, 64px) clamp(40px, 6vw, 72px);
  background:
    linear-gradient(115deg, rgba(5, 20, 45, 0.96) 0%, rgba(11, 50, 102, 0.9) 48%, rgba(26, 105, 164, 0.78) 100%),
    url("zwc-hero.png");
  background-size: cover;
  background-position: center;
  color: #fff;
}

.hero h1 {
  margin: 12px 0 18px;
  font-size: clamp(2.6rem, 7vw, 5.8rem);
  line-height: 1;
  font-weight: 800;
}

.hero p {
  max-width: 760px;
  margin: 0 0 10px;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.hero .lead {
  font-size: clamp(1.12rem, 2.2vw, 1.5rem);
}

.hero .eyebrow {
  color: rgba(197, 223, 255, 0.84);
  text-transform: uppercase;
}

.price-panel {
  display: grid;
  gap: 8px;
  padding: 24px;
  border: 1px solid rgba(185, 215, 247, 0.64);
  border-radius: 8px;
  background: rgba(247, 251, 255, 0.94);
  color: var(--ink);
  box-shadow: 0 22px 70px rgba(5, 20, 45, 0.22);
}

.price-panel strong {
  font-size: clamp(1.5rem, 3.4vw, 2.6rem);
  line-height: 1.15;
}

.price-panel small {
  color: var(--muted);
}

.content-band,
.utility-catalog,
.purchase-section,
.patent-section,
.review-notes {
  padding: clamp(38px, 6vw, 72px) clamp(20px, 5vw, 64px);
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  padding-top: 1px;
  padding-bottom: 1px;
}

.intro-grid > div {
  min-height: 250px;
  background: var(--paper);
  padding: clamp(24px, 4vw, 42px);
}

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

h2 {
  margin-bottom: 14px;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.25;
}

h3 {
  margin-bottom: 10px;
  font-size: clamp(1.3rem, 2.8vw, 2rem);
  line-height: 1.2;
}

.purchase-section {
  background:
    linear-gradient(180deg, #eaf4ff 0, #f6faff 100%);
}

.utility-catalog {
  background: #f8fbff;
}

.wallet-use-panel {
  display: grid;
  gap: 8px;
  margin: 0 0 24px;
  border: 1px solid #bdd8f3;
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff 0, #edf6ff 100%);
  padding: 18px 20px;
}

.wallet-use-panel strong {
  color: var(--forest);
  font-size: 1.08rem;
}

.wallet-use-panel p {
  margin: 0;
  color: var(--muted);
}

.patent-section {
  background: #fff;
}

.section-heading {
  display: grid;
  gap: 8px;
  max-width: 780px;
  margin-bottom: 28px;
}

.price-matrix {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px 24px;
  align-items: start;
  margin-bottom: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  padding: 18px 20px;
}

.price-matrix strong {
  color: var(--forest);
}

.price-matrix ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.price-matrix li {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  padding: 4px 10px;
  color: var(--ink);
  font-size: 0.92rem;
  white-space: nowrap;
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.utility-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.patent-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.package-card {
  display: flex;
  min-height: 270px;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, #ffffff 0, #f7fbff 100%);
  padding: 24px;
  box-shadow: 0 14px 35px rgba(16, 47, 91, 0.08);
}

.utility-card {
  display: flex;
  min-height: 360px;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 24px;
  box-shadow: 0 14px 35px rgba(16, 47, 91, 0.08);
}

.utility-card-featured {
  grid-column: span 2;
  background:
    linear-gradient(135deg, rgba(234, 244, 255, 0.92) 0, #fff 46%, rgba(255, 250, 238, 0.86) 100%);
  border-color: #bdd8f3;
}

.utility-card p {
  color: var(--muted);
}

.patent-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbff;
  padding: 22px;
}

.patent-grid h3 {
  color: var(--forest);
}

.patent-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.utility-price {
  margin: 18px 0 10px;
  color: var(--forest);
  font-size: clamp(1.25rem, 2.3vw, 1.85rem);
  font-weight: 800;
  line-height: 1.2;
}

.utility-price span,
.utility-subtitle,
.utility-note {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.utility-note {
  margin-bottom: 8px;
  border-left: 3px solid var(--gold);
  padding-left: 12px;
  font-weight: 500;
}

.package-price {
  margin: 0;
  color: var(--forest);
  font-size: clamp(1.45rem, 2.8vw, 2.2rem);
  font-weight: 800;
  line-height: 1.1;
}

.package-price span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

button,
.package-action,
.utility-link {
  width: 100%;
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  background: #cfdef1;
  color: #355272;
  font-weight: 700;
}

.package-action,
.utility-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.utility-link {
  background: #0b4f93;
  color: #fff;
}

.review-notes {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(24px, 5vw, 64px);
  background: var(--paper);
}

.review-notes ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.review-notes li {
  border-left: 4px solid var(--gold);
  padding: 10px 0 10px 16px;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.2fr);
  gap: clamp(22px, 5vw, 58px);
  padding: 30px clamp(20px, 5vw, 64px);
  border-top: 1px solid rgba(169, 203, 239, 0.24);
  background: #071a34;
  color: rgba(245, 249, 255, 0.9);
}

.site-footer p {
  margin: 6px 0 0;
  color: rgba(225, 239, 255, 0.72);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.footer-links a {
  border: 1px solid rgba(169, 203, 239, 0.28);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #f5f9ff;
  font-size: 0.92rem;
  text-decoration: none;
}

.legal-hero {
  padding: clamp(44px, 7vw, 82px) clamp(20px, 5vw, 64px);
  background:
    linear-gradient(115deg, rgba(5, 20, 45, 0.98) 0%, rgba(11, 50, 102, 0.94) 52%, rgba(26, 105, 164, 0.8) 100%),
    url("zwc-hero.png");
  background-size: cover;
  background-position: center;
  color: #fff;
}

.legal-hero h1 {
  margin: 10px 0 14px;
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 1.08;
}

.legal-hero p {
  max-width: 820px;
  color: rgba(255, 255, 255, 0.9);
}

.legal-hero .eyebrow {
  color: rgba(197, 223, 255, 0.84);
  text-transform: uppercase;
}

.legal-price {
  display: inline-block;
  margin: 10px 0 0;
  border: 1px solid rgba(185, 215, 247, 0.54);
  border-radius: 999px;
  padding: 7px 12px;
  background: rgba(255, 255, 255, 0.12);
  font-weight: 800;
}

.legal-body {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 20px;
  padding: clamp(38px, 6vw, 72px) clamp(20px, 5vw, 64px);
  background: linear-gradient(180deg, #eaf4ff 0, #f6faff 100%);
}

.legal-section,
.legal-safety {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  padding: clamp(22px, 4vw, 34px);
  box-shadow: 0 14px 35px rgba(16, 47, 91, 0.08);
}

.legal-section {
  grid-column: 1;
}

.legal-safety {
  grid-column: 2;
  grid-row: 1 / span 5;
  align-self: start;
  position: sticky;
  top: 92px;
}

.legal-section p,
.legal-safety li,
.legal-section li {
  color: var(--muted);
}

.legal-section ul,
.legal-safety ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 1.2rem;
}

.legal-table {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--line);
}

.legal-table div {
  display: grid;
  grid-template-columns: minmax(150px, 0.35fr) minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.legal-table dt {
  color: var(--ink);
  font-weight: 800;
}

.legal-table dd {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero,
  .review-notes,
  .site-footer,
  .legal-body {
    grid-template-columns: 1fr;
  }

  .legal-section,
  .legal-safety {
    grid-column: auto;
    grid-row: auto;
  }

  .legal-safety {
    position: static;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .intro-grid,
  .package-grid,
  .patent-grid,
  .utility-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .utility-card-featured {
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    justify-content: flex-start;
  }

  .price-matrix {
    grid-template-columns: 1fr;
  }

  .price-matrix li {
    white-space: normal;
  }

  .legal-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .intro-grid,
  .package-grid,
  .patent-grid,
  .utility-grid {
    grid-template-columns: 1fr;
  }

  .utility-card-featured {
    grid-column: auto;
  }
}