:root {
  --ink: #0a0a0a;
  --ink-2: #1a1a1a;
  --muted: #555;
  --line: #e5e5e5;
  --bg: #ffffff;
  --bg-alt: #f7f7f7;
  --accent: #0a0a0a;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.06);
  --font-jp: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Noto Sans JP", "Meiryo", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-jp);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "palt";
}

img { max-width: 100%; display: block; }
a { color: inherit; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}
.narrow { max-width: 720px; }
.center { text-align: center; }

.section {
  padding: 36px 0;
}
.section--alt { background: var(--bg-alt); }
.section--vsl { padding-top: 4px; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #0a0a0a;
  border-bottom: 1px solid #000;
}
.topbar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 1040px;
  margin: 0 auto;
  padding: 12px 20px;
  color: #fff;
  text-decoration: none;
  letter-spacing: .12em;
  font-size: 13px;
  font-weight: 600;
}
.topbar__brand img {
  width: 26px;
  height: 26px;
  object-fit: contain;
  border-radius: 4px;
  background: #0a0a0a;
}

/* ---------- Hero ---------- */
.hero {
  background: #fff;
  padding: 24px 0 8px;
  border-bottom: none;
}
.hero__inner { text-align: center; padding: 0 8px; }
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: #fff;
  background: var(--ink);
  padding: 7px 16px;
  border-radius: 999px;
  margin: 0 0 20px;
}
.h1 {
  font-size: 30px;
  line-height: 1.45;
  font-weight: 800;
  letter-spacing: .01em;
  margin: 0 0 16px;
}
.h1 br { }
.sub {
  font-size: 13px;
  letter-spacing: -.01em;
  color: var(--muted);
  margin: 0 0 8px;
  line-height: 1.8;
}
.trust {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- Typography ---------- */
.h2 {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.5;
  margin: 0 0 24px;
}
.h2--light { color: #fff; }
.kicker {
  text-align: center;
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 16px;
}
.lede {
  color: var(--muted);
  font-size: 14px;
  margin: -8px 0 28px;
}

/* ---------- CTA ---------- */
.cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .02em;
  padding: 16px 28px;
  border-radius: var(--radius);
  min-width: 260px;
  min-height: 52px;
  line-height: 1.3;
  transition: transform .08s ease, box-shadow .15s ease, background .15s ease;
  box-shadow: var(--shadow);
}
.cta:hover { background: #000; transform: translateY(-1px); }
.cta:active { transform: translateY(0); }
.cta--light {
  background: #fff;
  color: #0a0a0a;
}
.cta--light:hover { background: #f1f1f1; }

/* ---------- Video ---------- */
.video {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  margin: 0 0 28px;
  box-shadow: var(--shadow);
}
.video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- Bullets ---------- */
.bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.bullets li {
  position: relative;
  padding: 14px 16px 14px 44px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.7;
}
.bullets li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 20px;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg);
}

/* ---------- Testimonials Carousel ---------- */
.carousel {
  position: relative;
  margin: 0 -20px 24px;
}
.carousel__track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 4px 20px 20px;
  scrollbar-width: none;
}
.carousel__track::-webkit-scrollbar { display: none; }
.t-card {
  flex: 0 0 82%;
  scroll-snap-align: center;
  margin: 0;
  background: #0f0f10;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.t-card img {
  width: 100%;
  height: auto;
  display: block;
}
.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin: 4px 0 0;
}
.carousel__dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #cfcfcf;
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.carousel__dots button[aria-current="true"] {
  background: var(--ink);
  transform: scale(1.2);
}

/* ---------- FAQ ---------- */
.faq {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin: 0 0 10px;
  padding: 0;
  overflow: hidden;
}
.faq > summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 48px 16px 18px;
  font-weight: 700;
  font-size: 15px;
  position: relative;
  line-height: 1.6;
}
.faq > summary::-webkit-details-marker { display: none; }
.faq > summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 400;
  font-size: 22px;
  color: var(--muted);
  transition: transform .2s;
}
.faq[open] > summary::after { content: "−"; }
.faq > p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.85;
}

/* ---------- Final CTA ---------- */
.final {
  background: #0a0a0a;
  color: #fff;
  padding: 72px 0;
}
.final .h2 { margin-bottom: 16px; }
.sub--light { color: #bdbdbd; margin-bottom: 28px; }

/* ---------- Footer ---------- */
.foot {
  padding: 28px 0 40px;
  background: #fff;
  border-top: 1px solid var(--line);
}
.foot img {
  width: 32px;
  height: 32px;
  margin: 0 auto 8px;
  object-fit: contain;
  border-radius: 4px;
}
.foot p {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .08em;
}

/* ---------- Desktop ---------- */
@media (min-width: 720px) {
  .h1 { font-size: 42px; }
  .h2 { font-size: 28px; }
  .hero { padding: 40px 0 24px; }
  .section { padding: 52px 0; }
  .section--vsl { padding-top: 16px; }
  .bullets {
    grid-template-columns: 1fr 1fr;
  }
  .t-card { flex-basis: 360px; }
  .carousel { margin: 0 0 28px; }
  .carousel__track { padding: 4px 4px 24px; }
}

@media (min-width: 1040px) {
  .h1 { font-size: 48px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cta, .carousel__dots button { transition: none; }
}