@charset "UTF-8";:root{--color-bg-light: #F8F9FA;--color-bg-white: #FFFFFF;--color-accent: #2F80ED;--color-accent-light: #5B9CF6;--color-text-main: #333333;--color-text-sub: #666666;--color-border: #E0E0E0;--font-en: "Inter", sans-serif;--font-jp: "Noto Sans JP", sans-serif;--container-width: 1000px;--header-height: 70px;--shadow-card: 0 4px 20px rgba(0,0,0,.05);--shadow-float: 0 10px 30px rgba(0,0,0,.1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{background-color:var(--color-bg-light);color:var(--color-text-main);font-family:var(--font-jp);line-height:1.8;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit;transition:opacity .3s}a:hover{opacity:.8}.container{width:90%;max-width:var(--container-width);margin:0 auto}.site-header{position:sticky;top:0;height:var(--header-height);background:#fffffff2;backdrop-filter:blur(20px);border-bottom:1px solid 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auto}.hero-text{align-items:center;max-width:100%}.hero-title{font-size:2.8rem;font-weight:800;line-height:1.3;margin-bottom:24px;color:var(--color-text-main);letter-spacing:-.02em;background:linear-gradient(135deg,#222,#444);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-desc{font-size:1.1rem;color:var(--color-text-sub);margin-bottom:40px;line-height:1.8}.hero-note{margin-top:18px;font-size:.95rem;color:var(--color-text-sub)}.cta-group{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}.store-badge{display:inline-block;height:48px;transition:transform .2s,opacity .2s}.store-badge img{height:100%;width:auto;display:block}.hero-visual{width:100%;display:flex;justify-content:center;align-items:center;position:relative;margin-bottom:20px}.phone-frame{position:relative;width:100%;max-width:100%;border-radius:24px;box-shadow:0 15px 40px #0000001a;background:transparent;padding:0;border:none;overflow:hidden;transition:transform .3s 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#00000014;border-color:#2f80ed33}.feature-icon{font-size:2.5rem;margin-bottom:24px;display:flex;align-items:center;justify-content:center;width:80px;height:80px;background:#f8f9fa;border-radius:20px;transition:background .3s}.feature-card:hover .feature-icon{background:#2f80ed1a}.feature-card h3{font-size:1.4rem;font-weight:700;margin-bottom:16px;color:var(--color-text-main)}.feature-card p{font-size:1rem;color:var(--color-text-sub);line-height:1.8}.exchanges{padding:100px 0;background:#f8f9fa}.section-header{text-align:center;margin-bottom:60px}.section-header h3{font-size:2rem;font-weight:800;margin-bottom:16px;color:var(--color-text-main)}.section-header p{color:var(--color-text-sub);line-height:1.8}.exchange-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px;max-width:900px;margin:0 auto}.exchange-item{background:#fff;padding:24px 16px;border-radius:16px;text-align:center;font-weight:700;color:var(--color-text-main);box-shadow:0 4px 20px #00000008;border:1px solid rgba(0,0,0,.05);transition:transform .2s,box-shadow .2s;display:flex;align-items:center;justify-content:center;min-height:80px}.exchange-item:hover{transform:translateY(-4px);box-shadow:0 10px 30px #00000014;color:var(--color-accent)}.audience{padding:120px 0;background:linear-gradient(180deg,#fff,#f8f9fa)}.audience-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-bottom:40px}.audience-card{background:#fff;padding:32px;border-radius:24px;border:1px solid rgba(0,0,0,.05);box-shadow:0 20px 40px #0000000a;position:relative;overflow:hidden;min-height:100%}.audience-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:6px;background:linear-gradient(90deg,var(--color-accent) 0%,var(--color-accent-light) 100%)}.audience-label{display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;background:#2f80ed14;color:var(--color-accent);font-family:var(--font-en);font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:18px}.audience-card h4{font-size:1.45rem;line-height:1.5;margin-bottom:14px;color:var(--color-text-main);font-weight:800}.audience-card p{color:var(--color-text-sub);font-size:1rem}.download-panel{display:flex;align-items:center;justify-content:space-between;gap:32px;background:#fff;padding:36px 40px;border-radius:28px;border:1px solid rgba(0,0,0,.05);box-shadow:0 20px 40px #0000000a;scroll-margin-top:calc(var(--header-height) + 24px)}.download-panel h4{font-size:1.5rem;margin-bottom:10px;color:var(--color-text-main)}.download-panel p{color:var(--color-text-sub)}.download-panel-links{flex-shrink:0}.note{display:block;margin-top:24px;font-size:.85rem;color:#999}.policy{padding:60px 0;text-align:center;background:#f8f9fa;border-top:1px solid rgba(0,0,0,.05)}.policy h3{font-size:1.2rem;margin-bottom:16px;color:var(--color-text-main)}.policy a{color:var(--color-text-sub);text-decoration:none;font-weight:500;border-bottom:1px solid transparent;transition:all .2s}.policy a:hover{color:var(--color-accent);border-bottom-color:var(--color-accent)}.site-footer{padding:40px 0;text-align:center;color:#999;font-size:.85rem;background:#f8f9fa;border-top:1px solid rgba(0,0,0,.05)}.site-footer a{color:inherit;text-decoration:none;transition:color .2s}.site-footer a:hover{color:var(--color-accent)}@media(max-width:900px){.menu-toggle,.mobile-download-cta{display:inline-flex}.hero-content{grid-template-columns:1fr;text-align:center;gap:60px}.hero-text{align-items:center}.hero-title{font-size:2.8rem}.cta-group{justify-content:center}.header-nav{display:none;position:absolute;top:calc(100% + 12px);right:0;min-width:min(280px,calc(100vw - 32px));padding:18px;border-radius:24px;background:#fffffffa;border:1px solid rgba(0,0,0,.06);box-shadow:0 20px 40px #0000001f;flex-direction:column;gap:8px;align-items:stretch;backdrop-filter:blur(20px);margin-left:0}.site-header.is-menu-open .header-nav{display:flex}.nav-link-download{display:none}.nav-link{padding:10px 8px}.audience-card{padding:28px 24px}.download-panel{flex-direction:column;align-items:flex-start;padding:28px 24px}.hero-bg{top:-20%;left:-50%}}@media(max-width:480px){.brand{gap:12px}.brand-title{font-size:1.1rem}.brand-subtitle{font-size:.7rem}.header-content{gap:12px}.header-actions{gap:8px}.mobile-download-cta{min-height:40px;padding:0 14px;font-size:.8rem}.hero-title{font-size:2.2rem}.cta-button,.download-panel-links{width:100%;justify-content:center}.phone-frame{width:100%;max-width:280px}}