*{box-sizing:border-box;margin:0;padding:0}:root{--black:#212121;--brand-blue:#464dff;--light-blue:#5cb1ff;--deep-blue:#3b60aa;--off-white:#f5f7fa;--line:#e5e7eb;--text-muted:#6b7280;--text-body:#4b5563;--gradient-primary:linear-gradient(135deg, #464dff 0%, #5cb1ff 100%);--gradient-deep:linear-gradient(135deg, #3b60aa 0%, #8ac7ff 100%);--gradient-text:linear-gradient(135deg, #464dff 0%, #3b82f6 100%)}html{scroll-behavior:smooth}body{color:var(--black);-webkit-font-smoothing:antialiased;background:#fff;font-family:Noto Sans JP,Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.8}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:0 32px}.scroll-prog{z-index:2001;background:linear-gradient(90deg,#464dff,#5cb1ff);width:0;height:3px;position:fixed;top:0;left:0;box-shadow:0 0 10px #464dff80}header{-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border-bottom:1px solid var(--off-white);z-index:100;background:#ffffffeb;transition:box-shadow .25s,background .25s;position:sticky;top:0}body[data-scrolled=true] header{box-shadow:0 6px 24px #11182712}.header-inner{justify-content:space-between;align-items:center;max-width:1280px;margin:0 auto;padding:20px 32px;display:flex}.m-nav-toggle,.m-nav-panel{display:none}@media (max-width:768px){header .nav{display:none}.m-nav-toggle{z-index:1000;cursor:pointer;background:#fff;border:1px solid #e5e7eb;border-radius:10px;justify-content:center;align-items:center;width:44px;height:44px;padding:0;display:flex;position:fixed;top:14px;right:16px}.m-nav-toggle span,.m-nav-toggle span:before,.m-nav-toggle span:after{content:"";background:#212121;border-radius:2px;width:20px;height:2px;transition:all .2s;position:absolute}.m-nav-toggle span:before{top:-6px;left:0}.m-nav-toggle span:after{top:6px;left:0}.m-nav-toggle.open span{background:0 0}.m-nav-toggle.open span:before{top:0;transform:rotate(45deg)}.m-nav-toggle.open span:after{top:0;transform:rotate(-45deg)}.m-nav-panel{z-index:999;background:#fffffffa;flex-direction:column;padding:80px 24px 40px;position:fixed;inset:0;overflow-y:auto}.m-nav-panel.open{display:flex}.m-nav-panel a{color:#212121;border-bottom:1px solid #eff1f4;padding:14px 2px;font-size:16px;font-weight:600}.m-nav-panel .m-label{color:#212121;padding:14px 2px 0;font-size:16px;font-weight:600}.m-nav-panel .m-sub{flex-direction:column;display:flex}.m-nav-panel .m-sub a{color:#4b5563;padding:11px 0 11px 16px;font-size:14px;font-weight:400}.m-nav-panel .m-cta{background:var(--black);color:#fff;text-align:center;border-bottom:none;border-radius:10px;margin-top:26px;padding:15px}}.logo img{width:auto;height:36px;display:block}.nav{align-items:center;gap:36px;font-size:14px;font-weight:500;display:flex}.nav a{transition:color .15s}.nav a:hover,.nav a.active{color:var(--brand-blue)}.nav .has-submenu:after{content:" ▾";color:var(--text-muted);font-size:10px}.nav-cta{background:var(--black);border-radius:6px;padding:10px 20px;font-size:14px;font-weight:500;transition:background .15s;color:#fff!important}.nav-cta:hover{background:#000}.nav-item{position:relative}.nav-item>.submenu{z-index:200;padding-top:14px;display:none;position:absolute;top:100%;left:50%;transform:translate(-50%)}.nav-item:hover>.submenu,.nav-item:focus-within>.submenu{display:block}.submenu-inner{border:1px solid var(--line);background:#fff;border-radius:12px;flex-direction:column;gap:2px;min-width:240px;padding:8px;display:flex;box-shadow:0 16px 40px #1118271a}.submenu-inner a{color:var(--black);white-space:nowrap;border-radius:8px;padding:11px 14px;font-size:13.5px}.submenu-inner a:hover{background:var(--off-white);color:var(--brand-blue)}.breadcrumb{color:var(--text-muted);padding:24px 0 0;font-size:13px}.breadcrumb a:hover{color:var(--brand-blue)}.breadcrumb span{margin:0 8px}footer{background:var(--black);color:#fff;padding:80px 0 40px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;margin-bottom:64px;display:grid}.footer-logo img{width:auto;height:46px;display:block}.footer-tagline{color:#6b7280;margin-top:20px;font-size:13px;line-height:1.9}.footer-col h4{letter-spacing:.2em;color:#6b7280;margin-bottom:24px;font-family:Inter,sans-serif;font-size:12px;font-weight:700}.footer-col ul{flex-direction:column;gap:14px;list-style:none;display:flex}.footer-col a{color:#fff;font-size:14px;transition:color .15s}.footer-col a:hover{color:var(--light-blue)}.footer-bottom{color:#6b7280;border-top:1px solid #374151;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-top:32px;font-size:12px;display:flex}@media (max-width:768px){.container{padding:0 20px}.header-inner{padding:16px 20px}.nav{gap:16px;font-size:13px}.nav a:not(.nav-cta){display:none}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}.article-body{color:#060606;font-size:16px;line-height:1.7}.article-body p{margin-bottom:30px}.article-body>:last-child{margin-bottom:0}.article-body h2,.article-body h3{font-family:Poppins,Noto Sans JP,sans-serif}.article-body h2{color:#060606;margin-top:48px;margin-bottom:20px;scroll-margin-top:90px;font-size:24px;font-weight:700;line-height:1.4}.article-body h2:before{content:"";vertical-align:middle;background:var(--brand-blue);width:28px;height:2px;margin-right:12px;display:inline-block}.article-body h3{color:#060606;margin-top:32px;margin-bottom:10px;scroll-margin-top:90px;font-size:18px;font-weight:700;line-height:1.4}.article-body strong{color:#060606;font-weight:700}.article-body a{color:var(--brand-blue);text-underline-offset:2px;text-decoration:underline}.article-body a:hover{opacity:.8}.article-body a.external-source-link{color:var(--text-muted);text-decoration-color:#6b728073}.article-body a.external-source-link:hover{color:var(--text-body);opacity:1}.article-body ul,.article-body ol{margin-bottom:30px;padding-left:1.5em}.article-body ul{list-style:outside}.article-body ol{list-style:decimal}.article-body li{margin-bottom:10px;line-height:1.7}.article-body blockquote{border-left:3px solid var(--brand-blue);background:var(--off-white);color:var(--text-muted);border-radius:0 8px 8px 0;margin-bottom:30px;padding:12px 20px}.article-body .table-wrap{border:1px solid var(--line);border-radius:12px;margin-bottom:30px;overflow-x:auto}.article-body table{border-collapse:collapse;width:100%;min-width:600px;font-size:14px;line-height:1.7}.article-body th,.article-body td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);border-right:1px solid var(--line);padding:14px 16px}.article-body th:last-child,.article-body td:last-child{border-right:none}.article-body tr:last-child td{border-bottom:none}.article-body th{color:#fff;background:#5158e3;border-bottom:none;border-right-color:#ffffff38;font-weight:700}.article-body th:last-child{border-right:none}.article-body tbody td:first-child{color:#060606;background:#f4f5f8;font-weight:700}.article-body tbody td:not(:first-child){background:#fff}.article-body td p,.article-body th p{margin:0}.article-body code{background:var(--off-white);border-radius:4px;padding:2px 6px;font-size:.9em}.article-body pre{background:var(--off-white);border-radius:12px;margin-bottom:30px;padding:20px;overflow-x:auto}.article-body pre code{background:0 0;padding:0}.article-body img{border-radius:12px;max-width:100%;height:auto}.article-body hr{border:none;border-top:1px solid var(--line);margin:40px 0}@media (max-width:768px){.article-body h2{margin-top:40px;font-size:22px}}