/* =========================
   Base
========================= */
body {
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: #333333;
  line-height: 1.8;
}

section {
  padding: 100px 20px;
}

h1, h2 {
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

/* =========================
   Header
========================= */
.lp-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid #eef3f8;
}

.lp-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lp-logo img {
  height: 45px;
  width: auto;
  display: block;
}

.lp-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.lp-nav-link {
  color: #333;
  text-decoration: none;
  font-size: 14px;
}

.lp-nav-button {
  background: #4FB6E8;
  color: #ffffff;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(79,182,232,0.35);
}

/* =========================
   FV
========================= */
.lp-fv {
  background: #f8fbfe;
  text-align: center;
  padding: 64px 20px 72px;
  min-height: calc(100vh - 88px);
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 日本初※ バッジ */
.lp-fv-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #4FB6E8;
  color: #ffffff;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
}

.lp-fv-badge::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 8px;
  background: currentColor;
  clip-path: polygon(
    0% 100%,
    15% 40%,
    35% 70%,
    50% 30%,
    65% 70%,
    85% 40%,
    100% 100%
  );
}

.lp-fv h1 {
  font-size: 36px;
  margin-bottom: 12px;
}

.lp-fv h1 span {
  color: #4FB6E8;
}

.lp-fv-lead {
  font-size: 16px;
  color: #555;
  margin-bottom: 28px;
}

/* Phone mock */
.lp-fv-phone {
  width: 240px;
  height: 460px;
  margin: 0 auto 24px;
  border-radius: 34px;
  background: #111;
  padding: 10px;
  box-shadow: 0 26px 54px rgba(0,0,0,0.16);
}

.lp-fv-feed {
  width: 100%;
  height: 100%;
  border-radius: 24px;
  background: linear-gradient(180deg, #4FB6E8, #7EE6C5);
  position: relative;
}

.lp-fv-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255,255,255,0.9);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lp-fv-card {
  position: absolute;
  bottom: 18px;
  left: 16px;
  right: 16px;
  background: rgba(0,0,0,0.75);
  color: #ffffff;
  padding: 12px;
  border-radius: 10px;
  font-size: 13px;
}

/* CTA */
.lp-fv-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.lp-fv-primary {
  background: #4FB6E8;
  color: #ffffff;
  padding: 14px 34px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}

.lp-fv-secondary {
  color: #4FB6E8;
  padding: 12px 34px;
  border-radius: 999px;
  border: 2px solid #4FB6E8;
  text-decoration: none;
}

/* =========================
   Responsive
========================= */
@media (max-width: 768px) {
  .lp-fv h1 {
    font-size: 30px;
  }

  .lp-fv-phone {
    width: 220px;
    height: 420px;
  }
}