:root {
  color-scheme: light;
  --ink: #17201d;
  --muted: #5d6864;
  --soft: #edf2ef;
  --paper: #faf8f2;
  --white: #ffffff;
  --line: #d7ded8;
  --charcoal: #111816;
  --green: #15c979;
  --green-dark: #0c7b51;
  --amber: #d7962f;
  --gold: #c4a15e;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.75;
  letter-spacing: 0;
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 34px;
  background: rgba(17, 24, 22, 0.82);
  color: var(--white);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.brand,
.nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  font-size: 1rem;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--green), var(--gold));
}

.nav {
  gap: 22px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.86rem;
}

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

.hero {
  position: relative;
  min-height: 790px;
  color: var(--white);
  overflow: hidden;
  background: var(--charcoal);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 14, 13, 0.88) 0%, rgba(10, 14, 13, 0.72) 34%, rgba(10, 14, 13, 0.22) 72%),
    linear-gradient(180deg, rgba(10, 14, 13, 0.24) 0%, rgba(10, 14, 13, 0.76) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(680px, calc(100% - 48px));
  padding: 170px 0 0 7vw;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  line-height: 1.4;
  font-weight: 800;
  text-transform: uppercase;
}

.keep {
  white-space: nowrap;
}

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

h1,
h2 {
  line-height: 1.16;
  font-weight: 900;
  text-wrap: balance;
}

h1 {
  margin-bottom: 24px;
  font-size: 4.2rem;
}

h2 {
  margin-bottom: 20px;
  font-size: 2.65rem;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.24rem;
  line-height: 1.35;
  text-wrap: balance;
}

p {
  color: var(--muted);
  text-wrap: pretty;
}

.hero-lead {
  max-width: 590px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.12rem;
}

.hero-actions,
.contact {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.trust-badges span,
.official-data {
  border: 1px solid rgba(21, 201, 121, 0.38);
  background: rgba(21, 201, 121, 0.1);
}

.trust-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 12px;
  border-radius: 8px;
  color: var(--white);
  font-size: 0.86rem;
  font-weight: 900;
  white-space: nowrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 800;
  border: 1px solid transparent;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button.primary {
  background: var(--green);
  color: #062018;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.28);
}

.button.large {
  min-height: 56px;
  padding: 0 28px;
}

.hero-specs {
  position: absolute;
  z-index: 3;
  left: 7vw;
  right: 7vw;
  bottom: 36px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.hero-specs span,
.alert-strip span,
.alert-strip strong {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-weight: 800;
  white-space: nowrap;
}

.section,
.split-section,
.compliance,
.contact,
.footer {
  padding-left: 7vw;
  padding-right: 7vw;
}

.section {
  padding-top: 104px;
  padding-bottom: 104px;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 52px;
  align-items: end;
  background: var(--paper);
}

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

.section-copy.centered {
  margin: 0 auto 44px;
  text-align: center;
}

.section-copy.centered p {
  margin-left: auto;
  margin-right: auto;
  max-width: 710px;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.mode-card,
.scene-card,
.flow-list li {
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 18px 42px rgba(20, 31, 27, 0.08);
}

.mode-card {
  min-height: 230px;
  padding: 28px;
}

.mode-card.accent {
  background: #10251d;
  border-color: rgba(21, 201, 121, 0.34);
  color: var(--white);
}

.mode-card.accent p {
  color: rgba(255, 255, 255, 0.72);
}

.mode-label {
  display: inline-flex;
  margin-bottom: 22px;
  padding: 4px 12px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--green-dark);
  font-weight: 900;
}

.mode-card.accent .mode-label {
  background: rgba(21, 201, 121, 0.14);
  color: var(--green);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(360px, 0.84fr);
  gap: 48px;
  align-items: center;
  padding-top: 104px;
  padding-bottom: 104px;
  background: #17201d;
  color: var(--white);
}

.media-panel img,
.product-media img {
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

.text-panel p,
.compliance p,
.contact p {
  color: rgba(255, 255, 255, 0.75);
}

.alert-strip {
  display: grid;
  grid-template-columns: 0.7fr 1fr 1.4fr 0.8fr;
  gap: 8px;
  margin: 26px 0 18px;
}

.alert-strip span,
.alert-strip strong {
  min-height: 48px;
  justify-content: center;
  text-align: center;
  background: rgba(215, 150, 47, 0.14);
  border-color: rgba(215, 150, 47, 0.34);
}

.official-data {
  margin: 20px 0 18px;
  padding: 18px;
  border-radius: 8px;
}

.official-data strong {
  display: block;
  margin-bottom: 8px;
  color: var(--green);
}

.official-data p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.94rem;
}

.note {
  font-size: 0.92rem;
}

.scenes {
  background: var(--soft);
}

.smoke-route {
  background: #f8fbf7;
}

.route-steps,
.truth-panel,
.evidence-grid {
  display: grid;
  gap: 16px;
}

.route-steps {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 18px;
}

.route-steps article,
.truth-card,
.evidence-grid article {
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 18px 42px rgba(20, 31, 27, 0.08);
}

.route-steps article {
  min-height: 250px;
  padding: 26px;
}

.route-steps span,
.truth-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--green-dark);
  font-weight: 900;
}

.truth-panel {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 20px;
}

.truth-card {
  min-height: 280px;
  padding: 30px;
}

.truth-card.positive {
  background: #10251d;
  border-color: rgba(21, 201, 121, 0.35);
  color: var(--white);
}

.truth-card.positive p {
  color: rgba(255, 255, 255, 0.72);
}

.truth-card.positive span {
  color: var(--green);
}

.truth-card.caution {
  background: #fff7e8;
  border-color: rgba(215, 150, 47, 0.42);
}

.truth-card.caution span {
  color: var(--amber);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.scene-card {
  overflow: hidden;
}

.scene-card img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: #dce4df;
}

.scene-card div {
  padding: 20px;
}

.scene-card p {
  margin-bottom: 0;
  font-size: 0.94rem;
}

.product {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr);
  gap: 52px;
  align-items: center;
  background: var(--paper);
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 30px 0 0;
}

.spec-list div {
  min-height: 94px;
  padding: 18px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid var(--line);
}

.spec-list dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.spec-list dd {
  margin: 0;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 900;
  line-height: 1.36;
}

.flow {
  background: #f6f0e5;
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.flow-list li {
  padding: 24px;
}

.flow-list span {
  display: block;
  margin-bottom: 18px;
  color: var(--amber);
  font-weight: 900;
}

.flow-list strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.08rem;
}

.flow-list p {
  margin-bottom: 0;
  font-size: 0.94rem;
}

.compliance {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 44px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 72px;
  background: #1b221f;
  color: var(--white);
}

.evidence {
  background: #edf2ef;
}

.evidence-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.evidence-grid article {
  padding: 24px;
}

.evidence-grid p {
  margin-bottom: 0;
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.source-links a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--green-dark);
  font-size: 0.82rem;
  font-weight: 900;
}

.contact {
  justify-content: space-between;
  padding-top: 90px;
  padding-bottom: 90px;
  background: #0f1d18;
  color: var(--white);
}

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

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 28px;
  padding-bottom: 28px;
  background: #09110f;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.86rem;
}

.footer p {
  margin: 0;
  color: inherit;
}

@media (max-width: 1080px) {
  h1 {
    font-size: 3.3rem;
  }

  h2 {
    font-size: 2.15rem;
  }

  .hero {
    min-height: 720px;
  }

  .hero-content {
    padding-top: 140px;
  }

  .intro,
  .split-section,
  .product,
  .compliance {
    grid-template-columns: 1fr;
  }

  .scene-grid,
  .flow-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .route-steps,
  .truth-panel,
  .evidence-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: absolute;
    padding: 14px 18px;
  }

  .nav {
    display: none;
  }

  .hero {
    min-height: 720px;
  }

  .hero-content {
    width: min(100% - 36px, 680px);
    padding: 112px 0 0 18px;
  }

  h1 {
    font-size: 2.48rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .trust-badges span {
    font-size: 0.78rem;
    white-space: normal;
  }

  .hero-specs {
    left: 18px;
    right: 18px;
    bottom: 22px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-specs span {
    font-size: 0.88rem;
    padding-left: 10px;
    padding-right: 10px;
  }

  .section,
  .split-section,
  .compliance,
  .contact,
  .footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .section,
  .split-section {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .mode-grid,
  .scene-grid,
  .spec-list,
  .flow-list,
  .route-steps,
  .truth-panel,
  .evidence-grid,
  .alert-strip {
    grid-template-columns: 1fr;
  }

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

  .scene-card img {
    aspect-ratio: 16 / 10;
  }

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