:root{
  /* ===== Color system ===== */
  --s-bg: #ffffff;
  --s-ink: #151b28;
  --s-muted: #5b667a;
  --s-line: rgba(20,30,55,.14);

  --s-blue: #2a6be7;
  --s-blue2: #1f55c6;

  --s-card: #ffffff;
  --s-shadow: 0 18px 50px rgba(10,20,40,.10);

  /* Layout */
  --s-gutter: clamp(18px, 4vw, 44px);
  --s-content-width: 980px;
  --s-radius: 14px;
}

/* ===== Base ===== */
*{ box-sizing: border-box; }
body{
  margin: 0;
  background: var(--s-bg);
  color: var(--s-ink);
  font-family: system-ui, -apple-system, "Noto Sans JP", sans-serif;
  letter-spacing: .02em;
}

/* ===== Header ===== */
.s-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--s-line);
}
.s-header__inner{
  padding: 14px var(--s-gutter);
}
.s-header__brand{
  text-decoration: none;
  font-weight: 800;
  color: var(--s-ink);
  letter-spacing: .06em;
}

/* ===== Hero ===== */
.s-hero{
  padding: clamp(34px, 6vw, 56px) var(--s-gutter) 20px;
  background:
    radial-gradient(900px 260px at 16% 10%, rgba(42,107,231,.14), transparent 60%),
    linear-gradient(180deg, rgba(42,107,231,.08), transparent 70%),
    #fff;
}
.s-hero__inner{
  width: min(var(--s-content-width), 100%);
  margin: 0 auto;
}
.s-hero__en{
  margin: 0;
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 900;
  letter-spacing: .1em;
  color: var(--s-blue);
}
.s-hero__jp{
  margin-top: 10px;
  font-size: 18px;
  font-weight: 800;
}
.s-hero__lead{
  margin-top: 8px;
  color: var(--s-muted);
  line-height: 1.9;
  max-width: 70ch;
}

/* ===== Main ===== */
.s-main{
  padding: 24px var(--s-gutter) 64px;
}
.s-content{
  width: min(var(--s-content-width), 100%);
  margin: 0 auto;
}

/* ===== Card ===== */
.s-card{
  background: var(--s-card);
  border: 1px solid var(--s-line);
  border-radius: var(--s-radius);
  box-shadow: var(--s-shadow);
}

/* ===== Policy ===== */
.s-policy{
  padding: clamp(20px, 4vw, 36px);
}
.s-policy__body p{
  margin: 0;
  font-size: 14px;
  line-height: 2.2;
  overflow-wrap: anywhere;
}

/* ===== Meta text ===== */
.s-policy-meta{
  margin: 18px 0;
  font-size: 13px;
  color: var(--s-muted);
}
.s-policy-meta--right{
  text-align: right;
  margin-top: 22px;
}

/* ===== Footer ===== */
.s-footer{
  border-top: 1px solid var(--s-line);
  padding: 22px var(--s-gutter);
}
.s-footer__inner{
  width: min(var(--s-content-width), 100%);
  margin: 0 auto;
  text-align: center;
}
.s-footer__copy{
  font-size: 12px;
  color: var(--s-muted);
}

/* ===== Responsive ===== */
@media (max-width: 640px){
  .s-policy__body p{
    font-size: 13.5px;
  }
}