:root{--ink:#263041;--brand:#277fe8;--brand-dark:#1460bd;--mint:#0fa58a;--paper:#fff;--soft:#f4f8fd;--line:#dce6f1;--warm:#fff7ed}
    *{box-sizing:border-box} html{scroll-behavior:smooth} body{color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.85;background:#fff}
    .site-head{background:#fff;border-bottom:1px solid #e8eef5;position:relative;z-index:5}.site-head-inner{max-width:1110px;margin:auto;min-height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 18px}.site-logo img{width:172px;height:auto}.site-nav{display:flex;gap:26px;align-items:center;font-size:15px}.site-nav a{color:#35445a;text-decoration:none}.site-nav a:hover{color:var(--brand)}
    .promo{background:#192940;color:#fff;text-align:center;font-size:13px;padding:7px 12px}.promo b{display:inline-block;background:#ffeb75;color:#162238;border-radius:12px;padding:0 9px;margin-right:7px;font-size:12px}
    .article-wrap{max-width:940px;margin:0 auto;padding:0 18px 64px}.crumb{font-size:13px;color:#728195;padding:20px 0 16px}.crumb a{color:#607c9e;text-decoration:none}.hero{border-radius:18px;background:linear-gradient(135deg,#edf7ff 0%,#f7fbff 58%,#eaf9f5 100%);padding:42px 48px 38px;margin-bottom:30px;border:1px solid #dceaf6;overflow:hidden;position:relative}.hero:after{content:"";position:absolute;width:240px;height:240px;border-radius:50%;right:-88px;top:-105px;background:rgba(41,133,233,.10)}.eyebrow{position:relative;z-index:1;color:#1876cf;font-size:13px;font-weight:700;letter-spacing:.07em}.hero h1{position:relative;z-index:1;font-size:34px;line-height:1.46;margin:10px 0 16px;color:#202d41;font-weight:800}.hero p{position:relative;z-index:1;margin:0;max-width:720px;color:#516175;font-size:16px}.hero-meta{position:relative;z-index:1;margin-top:18px;display:flex;gap:18px;color:#728195;font-size:13px}
    .note{background:var(--warm);border-left:4px solid #f1a64f;border-radius:8px;padding:15px 18px;margin:24px 0;color:#67451c;font-size:14px}.article-wrap h2{font-size:25px;line-height:1.55;margin:48px 0 16px;padding:0 0 10px;border-bottom:2px solid #dbeafa;color:#243248;font-weight:800}.article-wrap h3{font-size:20px;line-height:1.55;margin:30px 0 9px;color:#253b58;font-weight:800}.article-wrap h4{font-size:16px;font-weight:800;margin:18px 0 6px;color:#345171}.article-wrap p{margin:0 0 14px}.article-wrap a{color:#1876cf}.lead{font-size:16px}.toc{background:#f7fbff;border:1px solid #dce8f5;border-radius:12px;padding:22px 28px;margin:28px 0}.toc-title{font-weight:800;font-size:18px;color:#27517f;margin:0 0 10px}.toc ul{columns:2;gap:30px;margin:0;padding-left:20px}.toc li{padding:2px 0;font-size:14px;break-inside:avoid}.compare-wrap{overflow-x:auto;margin:18px 0 28px}.compare{width:100%;min-width:720px;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:13px}.compare th{background:#eff6fd;color:#335373;font-weight:800}.compare th,.compare td{padding:12px 13px;text-align:left;vertical-align:top;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.compare th:last-child,.compare td:last-child{border-right:none}.compare tr:last-child td{border-bottom:none}.tag{display:inline-block;padding:2px 8px;border-radius:99px;background:#e6f6f2;color:#087d68;font-size:11px;font-weight:800;line-height:1.5}.tag.paid{background:#eff2f7;color:#5c6878}.platform{border:1px solid #dfebf7;border-radius:13px;padding:23px 25px;margin:18px 0;background:#fff;box-shadow:0 5px 18px rgba(24,75,125,.04)}.platform-head{display:flex;gap:13px;align-items:flex-start}.num{flex:0 0 auto;background:#e9f4ff;color:#1876cf;border-radius:50%;height:34px;width:34px;text-align:center;line-height:34px;font-weight:800}.platform h3{margin:0;color:#243650}.platform p{margin:9px 0 10px}.platform ul{margin:9px 0 0;padding-left:20px;font-size:14px}.platform li{margin:3px 0}.platform .official{font-size:13px;margin-top:11px}.download-box{background:linear-gradient(135deg,#1d78de,#2d99e5);border-radius:16px;padding:30px 34px;color:#fff;margin:35px 0 42px;box-shadow:0 10px 25px rgba(22,111,203,.24)}.download-box h2{border:none!important;color:#fff!important;margin:0 0 8px!important;padding:0!important;font-size:25px!important}.download-box p{color:#eff8ff;margin:0 0 15px}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.btn-cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border-radius:6px;padding:9px 18px;text-decoration:none!important;font-weight:800;font-size:14px}.btn-cta.primary{background:#fff;color:#1673d6}.btn-cta.secondary{border:1px solid rgba(255,255,255,.72);color:#fff}.product-detail{border:1px solid #cfe7e2;background:#f5fcfa;border-radius:15px;padding:31px 32px;margin:32px 0}.product-detail h2{margin-top:0!important;border-bottom-color:#bfe0d9!important}.product-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:25px;align-items:start}.feature-list{margin:0;padding-left:20px}.feature-list li{margin:4px 0}.steps{counter-reset:step;margin:18px 0 0;padding:0;list-style:none}.steps li{position:relative;padding:0 0 18px 48px}.steps li:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:30px;height:30px;text-align:center;line-height:30px;border-radius:50%;color:#fff;background:#14a58b;font-weight:800}.faq{border-top:1px solid var(--line);padding:19px 0}.faq h3{font-size:17px;margin:0 0 6px}.faq p{margin:0;font-size:15px}.author{background:#f6f9fc;border-radius:12px;padding:19px 22px;display:flex;gap:15px;align-items:center;margin-top:38px}.author img{width:52px;height:52px;border-radius:50%;object-fit:cover}.author p{font-size:13px;color:#617086;margin:2px 0 0}.site-foot{background:#1d2938;color:#c9d4df;padding:34px 18px;text-align:center;font-size:13px}.site-foot a{color:#e5f1ff;text-decoration:none;margin:0 8px}
    @media(max-width:700px){.site-nav{display:none}.site-head-inner{min-height:62px}.site-logo img{width:152px}.hero{padding:30px 24px}.hero h1{font-size:27px}.hero-meta{display:block}.hero-meta span{display:block}.toc{padding:18px}.toc ul{columns:1}.article-wrap h2{font-size:22px}.download-box,.product-detail{padding:24px 20px}.product-grid{grid-template-columns:1fr}.platform{padding:20px 18px}.compare-wrap{margin-left:-18px;margin-right:-18px}.compare{border-radius:0}.author{align-items:flex-start}}