:root {
    --sp-navy: #082a5b;
    --sp-navy-deep: #041d42;
    --sp-blue: #1274bd;
    --sp-blue-soft: #eaf5fc;
    --sp-gold: #f5b63f;
    --sp-gold-soft: #fff5db;
    --sp-surface: #ffffff;
    --sp-surface-alt: #f6f9fc;
    --sp-text: #10233f;
    --sp-muted: #5e6f86;
    --sp-border: #dce6f0;
    --sp-success: #16784a;
    --sp-danger: #b42318;
    --sp-radius-sm: 12px;
    --sp-radius-md: 20px;
    --sp-radius-lg: 32px;
    --sp-shadow: 0 18px 50px rgba(8, 42, 91, 0.12);
    --sp-content: 1180px;
    --sp-header-height: 76px;
}

html { scroll-behavior: smooth; }
body.sp-page {
    margin: 0;
    color: var(--sp-text);
    background: var(--sp-surface);
    font-family: "Noto Sans JP", system-ui, sans-serif;
    overflow-x: hidden;
}
.sp-container {
    width: min(calc(100% - 40px), var(--sp-content));
    margin-inline: auto;
}
.sp-section { padding: 88px 0; }
.sp-section--alt { background: var(--sp-surface-alt); }
.sp-eyebrow {
    color: var(--sp-blue);
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.sp-title {
    margin: 12px 0 18px;
    color: var(--sp-navy);
    font-size: clamp(30px, 4vw, 52px);
    line-height: 1.25;
}
.sp-copy { color: var(--sp-muted); line-height: 1.9; }
.sp-button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 26px;
    border: 0;
    border-radius: 999px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
}
.sp-button--primary { color: var(--sp-navy-deep); background: var(--sp-gold); }
.sp-button--secondary { color: #fff; background: var(--sp-blue); }
.sp-button:focus-visible { outline: 3px solid #fff; box-shadow: 0 0 0 6px var(--sp-blue); }

.sp-header { position: sticky; top: 0; z-index: 1000; height: var(--sp-header-height); background: rgba(255,255,255,.96); border-bottom: 1px solid var(--sp-border); backdrop-filter: blur(14px); }
.sp-header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.sp-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--sp-navy); text-decoration: none; }
.sp-brand img { width: 48px; height: 48px; object-fit: cover; border-radius: 50%; }
.sp-brand span { display: grid; line-height: 1; }
.sp-brand strong { font-size: 22px; }
.sp-brand small { margin-top: 6px; font-size: 11px; letter-spacing: .24em; }
.sp-nav { display: flex; align-items: center; gap: 16px; }
.sp-nav__link { min-height: 44px; border: 0; background: transparent; color: var(--sp-navy); font: inherit; font-weight: 700; cursor: pointer; }
.sp-hero { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--sp-navy-deep), var(--sp-navy) 65%, #0b4f8f); color: #fff; }
.sp-hero__grid { min-height: 650px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 60px; }
.sp-hero h1 { margin: 12px 0 18px; font-size: clamp(44px, 6vw, 78px); line-height: 1.12; }
.sp-hero__lead { margin: 0; font-size: clamp(18px, 2vw, 24px); }
.sp-hero__tagline { color: #dcecff; font-size: 18px; letter-spacing: .08em; }
.sp-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.sp-button--ghost { color: #fff; background: transparent; border: 1px solid rgba(255,255,255,.55); }
.sp-hero__visual { position: relative; display: grid; place-items: center; }
.sp-hero__visual img { position: relative; z-index: 1; width: min(100%, 520px); height: auto; border-radius: var(--sp-radius-lg); box-shadow: var(--sp-shadow); }
.sp-hero__sun { position: absolute; width: 340px; height: 340px; border-radius: 50%; background: rgba(245,182,63,.22); filter: blur(4px); }
.sp-card-grid { display: grid; gap: 24px; }
.sp-card-grid--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sp-feature-card, .sp-benefit-card { border: 1px solid var(--sp-border); border-radius: var(--sp-radius-md); background: #fff; box-shadow: 0 12px 32px rgba(8,42,91,.08); }
.sp-feature-card { padding: 30px; text-align: center; }
.sp-feature-card img { width: 88px; height: 88px; object-fit: contain; }
.sp-feature-card h3, .sp-process__item h3, .sp-benefit-card h3 { color: var(--sp-navy); }
.sp-feature-card p, .sp-process__item p, .sp-benefit-card p { color: var(--sp-muted); line-height: 1.8; }
.sp-process__list { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 24px; padding: 0; list-style: none; }
.sp-process__item { position: relative; padding: 32px; border-radius: var(--sp-radius-md); background: #fff; }
.sp-process__number { color: var(--sp-gold); font-size: 36px; font-weight: 700; }
.sp-support__grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 56px; }
.sp-support__grid > img { width: 100%; height: auto; border-radius: var(--sp-radius-md); }
.sp-support__lead { color: var(--sp-navy); font-size: 24px; font-weight: 700; }
.sp-support ul { padding-left: 1.4em; }
.sp-benefit-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 20px; }
.sp-benefit-card { overflow: hidden; }
.sp-benefit-card img { width: 100%; aspect-ratio: 352 / 220; object-fit: cover; }
.sp-benefit-card__body { padding: 22px; }
.sp-benefit-card h3 { margin-top: 0; font-size: 18px; line-height: 1.6; }
.sp-trust { padding: 56px 0; color: #fff; background: var(--sp-navy); }
.sp-trust__list { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; margin: 0; padding: 0; list-style: none; }
.sp-trust__list li { display: grid; gap: 12px; }
.sp-trust__list strong { color: var(--sp-gold); font-size: 20px; }
.sp-trust__list span { line-height: 1.8; }
.sp-download { background: linear-gradient(135deg, var(--sp-blue-soft), #fff 60%); }
.sp-download__grid { display: grid; grid-template-columns: 1fr .8fr; align-items: center; gap: 64px; }
.sp-download__actions, .sp-store-marks { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.sp-store-marks img { width: 121px; height: 40px; object-fit: contain; }
.sp-phone { width: min(100%, 330px); margin-inline: auto; padding: 12px; border: 8px solid var(--sp-navy-deep); border-radius: 46px; background: var(--sp-navy-deep); box-shadow: var(--sp-shadow); }
.sp-phone__screen { min-height: 540px; display: grid; place-content: center; justify-items: center; gap: 18px; padding: 28px; border-radius: 32px; background: #fff; color: var(--sp-navy); text-align: center; }
.sp-phone__screen img { width: 150px; height: 150px; object-fit: cover; border-radius: 50%; }
.sp-mobile-cta { display: none; }
.sp-tip-list { display: grid; gap: 18px; margin: 0; padding: 0; list-style: none; counter-reset: sp-tip; }
.sp-tip-list li { counter-increment: sp-tip; display: grid; grid-template-columns: 48px 1fr; gap: 4px 16px; padding: 18px; border: 1px solid var(--sp-border); border-radius: var(--sp-radius-sm); }
.sp-tip-list li::before { content: counter(sp-tip); grid-row: span 2; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--sp-gold); color: var(--sp-navy-deep); font-weight: 700; }
.sp-tip-list span { color: var(--sp-muted); }
.sp-qr-status { min-height: 160px; display: grid; place-items: center; color: var(--sp-muted); }
.sp-qr-status[hidden], .qrimg[hidden] { display: none !important; }
.sp-footer { padding: 48px 0 calc(48px + env(safe-area-inset-bottom)); color: #fff; background: var(--sp-navy-deep); }
.sp-footer__inner { display: grid; gap: 22px; }
.sp-footer__brand { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.sp-footer__brand img { border-radius: 50%; }
.sp-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.sp-footer button { min-height: 44px; border: 0; background: transparent; color: #fff; font: inherit; text-decoration: underline; cursor: pointer; }
.sp-footer button:focus-visible { outline: 3px solid var(--sp-gold); outline-offset: 3px; }

@media (max-width: 1023px) {
    .sp-benefit-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 767px) {
    :root { --sp-header-height: 64px; }
    .sp-container { width: min(calc(100% - 28px), var(--sp-content)); }
    .sp-section { padding: 64px 0; }
    .sp-nav__link { display: none; }
    .sp-nav .sp-button { min-height: 42px; padding-inline: 16px; font-size: 14px; }
    .sp-hero__grid { min-height: auto; grid-template-columns: 1fr; gap: 32px; padding-block: 64px; text-align: center; }
    .sp-hero__actions { justify-content: center; }
    .sp-hero__visual img { width: min(86vw, 360px); }
    .sp-card-grid--three, .sp-process__list, .sp-benefit-grid, .sp-trust__list { grid-template-columns: 1fr; }
    .sp-support__grid { grid-template-columns: 1fr; gap: 32px; }
    .sp-download__grid { grid-template-columns: 1fr; }
    .sp-mobile-cta { position: fixed; z-index: 900; right: 14px; bottom: max(14px, env(safe-area-inset-bottom)); left: 14px; display: inline-flex; box-shadow: 0 12px 30px rgba(8,42,91,.28); }
    body.sp-modal-open .sp-mobile-cta { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}