.column-page,.column-page *,.column-page *::before,.column-page *::after{box-sizing:border-box}.column-page{--lp-primary:#1a3a5c;--lp-primary-light:#254d75;--lp-primary-dark:#0f2640;--lp-border-light:#edf1f5;--lp-shadow-sm:0 1px 3px rgba(15,38,64,.06);--lp-shadow-lg:0 12px 40px rgba(15,38,64,.12);--lp-font:"Hiragino Sans","Hiragino Kaku Gothic ProN",sans-serif;min-width:0;overflow-x:clip}.column-page a,.column-page button{font-family:inherit}.column-page .container{width:100%;max-width:1120px;margin:0 auto;padding:0 24px}.column-page .skip-link{position:fixed;top:8px;left:8px;z-index:200;transform:translateY(-150%);padding:10px 16px;border-radius:6px;color:var(--lp-primary-dark);background:#fff;font-weight:700;box-shadow:var(--lp-shadow-lg)}.column-page .skip-link:focus{transform:translateY(0)}.column-page a:focus-visible,.column-page button:focus-visible{outline:3px solid #1c78b4;outline-offset:3px}.column-page .header{position:fixed;inset:0 0 auto;z-index:100;padding:0 90px;transition:background .3s ease,border-color .3s ease,box-shadow .3s ease}.column-page .header.scrolled,.column-page .header:focus-within{border-bottom:1px solid var(--lp-border-light);background:rgba(255,255,255,.94);box-shadow:var(--lp-shadow-sm);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.column-page .header-inner{display:flex;align-items:center;justify-content:space-between;max-width:1620px;height:72px;margin:0 auto}.column-page .logo{display:flex;align-items:center;color:#101828;text-decoration:none}.column-page .logo-img{display:block;width:auto;height:44px}.column-page .nav{display:flex;align-items:center;gap:34px}.column-page .nav a{color:#344054;font-size:14px;font-weight:500;text-decoration:none;transition:color .2s ease}.column-page .nav a:hover{color:var(--lp-primary)}.column-page .nav .nav-cta{padding:10px 22px;border-radius:6px;color:#fff;background:var(--lp-primary);font-weight:700;transition:transform .2s ease,background .2s ease,box-shadow .2s ease}.column-page .nav .nav-cta:hover{transform:translateY(-1px);color:#fff;background:var(--lp-primary-light);box-shadow:0 4px 20px rgba(15,38,64,.08)}.column-page .hamburger{display:none;padding:8px;border:0;background:none;cursor:pointer}.column-page .hamburger span{display:block;width:22px;height:2px;margin:5px 0;border-radius:2px;background:var(--lp-primary);transition:transform .3s ease,opacity .3s ease}.column-page .column-list-hero{padding-top:132px}.column-page .column-article{padding-top:106px}.column-page .footer{padding:64px 0 32px;color:#8a9bb2;background:#0f1b2d}.column-page .footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}.column-page .footer-logo{display:flex;align-items:center;margin-bottom:16px;text-decoration:none}.column-page .footer-logo-img{display:block;width:auto;height:32px}.column-page .footer-brand p{max-width:280px;font-size:13px;line-height:1.7}.column-page .footer-col h4{margin:0 0 20px;color:rgba(255,255,255,.62);font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.column-page .footer-col a{display:block;padding:5px 0;color:rgba(255,255,255,.72);font-size:14px;text-decoration:none}.column-page .footer-col a:hover{color:#fff}.column-page .footer-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:12px}.column-page .footer-legal{display:flex;gap:20px}.column-page .footer-legal a{color:rgba(255,255,255,.58);text-decoration:none}.column-page .footer-legal a:hover{color:rgba(255,255,255,.85)}@media(max-width:1250px){.column-page .header{padding:0 24px}}@media(max-width:768px){.column-page .nav{display:none}.column-page .hamburger{display:block}.column-page .header-inner{position:relative}.column-page .header-inner.menu-open .nav{position:absolute;top:64px;right:0;left:0;display:flex;flex-direction:column;align-items:stretch;gap:0;padding:12px;border:1px solid var(--lp-border-light);border-radius:8px;background:#fff;box-shadow:var(--lp-shadow-lg)}.column-page .header-inner.menu-open .nav a{padding:10px 12px}.column-page .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.column-page .hamburger.active span:nth-child(2){opacity:0}.column-page .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.column-page .footer-inner{grid-template-columns:1fr 1fr;gap:32px}.column-page .footer-bottom{flex-direction:column;gap:12px;text-align:center}}@media(max-width:560px){.column-page .column-list-hero{padding-top:108px}.column-page .column-article{padding-top:92px}}@media(max-width:520px){.column-page .footer-inner{grid-template-columns:1fr}}
.column-page{background:#fff;font-family:var(--lp-font);-webkit-font-smoothing:antialiased}
:root{--column-navy:#17324d;--column-blue:#1f6f8b;--column-orange:#ef7f35;--column-cream:#fffaf3;--column-yellow:#fff0a8;--column-text:#263746;--column-muted:#687785;--column-line:#dfe6ea;--column-white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--column-text);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.8}a{color:inherit}.column-site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(23,50,77,.08);background:rgba(255,255,255,.96);backdrop-filter:blur(12px)}.column-header-inner{width:min(1120px,calc(100% - 40px));height:72px;margin:auto;display:flex;align-items:center;justify-content:space-between}.column-logo img,.column-footer-logo img{display:block;width:142px;height:auto}.column-desktop-nav{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:700}.column-desktop-nav a{text-decoration:none}.column-desktop-nav a:hover{color:var(--column-orange)}.column-nav-cta{padding:10px 18px;border-radius:999px;color:#fff!important;background:var(--column-orange)}.column-mobile-nav{display:none;position:relative}.column-mobile-nav summary{cursor:pointer;font-weight:700;list-style:none}.column-mobile-nav summary::-webkit-details-marker{display:none}.column-mobile-nav nav{position:absolute;right:0;top:42px;display:grid;width:230px;padding:12px;border:1px solid var(--column-line);border-radius:14px;background:#fff;box-shadow:0 18px 40px rgba(23,50,77,.16)}.column-mobile-nav nav a{padding:10px 12px;text-decoration:none}.column-main{width:min(1060px,calc(100% - 40px));margin:0 auto}.column-list-hero{padding:76px 0 50px;text-align:center}.column-list-hero>span{color:var(--column-orange);font-size:12px;font-weight:900;letter-spacing:.18em}.column-list-hero h1{margin:10px 0 14px;color:var(--column-navy);font-size:clamp(30px,5vw,48px);line-height:1.35}.column-list-hero p{max-width:680px;margin:auto;color:var(--column-muted)}.column-list{padding-bottom:96px}.column-card{display:block;overflow:hidden;border:1px solid var(--column-line);border-radius:18px;background:#fff;text-decoration:none;box-shadow:0 8px 28px rgba(23,50,77,.07);transition:transform .2s,box-shadow .2s}.column-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(23,50,77,.13)}.column-card img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.column-card-body{padding:22px}.column-card h2{margin:10px 0 8px;color:var(--column-navy);font-size:20px;line-height:1.55}.column-card p{margin:0 0 16px;color:var(--column-muted)}.column-card-featured{display:grid;grid-template-columns:1.15fr 1fr;margin-bottom:30px}.column-card-featured img{height:100%}.column-card-featured .column-card-body{padding:34px}.column-card-featured h2{font-size:clamp(24px,3vw,34px)}.column-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.column-tags{display:flex;flex-wrap:wrap;gap:7px}.column-tags span{display:inline-block;padding:3px 9px;border-radius:999px;color:var(--column-blue);background:#e8f5f8;font-size:12px;font-weight:800}.column-tags .column-tag-accent{color:#a44915;background:#ffeadb}.column-meta{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--column-muted);font-size:13px}.column-empty{padding:64px 24px;border-radius:16px;background:var(--column-cream);text-align:center}.column-article{width:min(760px,100%);margin:0 auto;padding:34px 0 96px}.column-breadcrumb{display:flex;flex-wrap:wrap;gap:6px 10px;margin-bottom:34px;color:var(--column-muted);font-size:13px}.column-breadcrumb a{text-decoration:none}.column-article-header h1{margin:14px 0 16px;color:var(--column-navy);font-size:clamp(30px,5vw,46px);line-height:1.45;letter-spacing:-.02em}.column-hero-image{display:block;width:100%;height:auto;margin:34px 0;border-radius:18px;aspect-ratio:16/9;object-fit:cover}.column-article-lead>p:first-child{font-size:18px;line-height:1.9}.column-toc{margin:42px 0;padding:24px 28px;border:1px solid #cfe0e7;border-radius:15px;background:#f4fafc}.column-section-label{margin-bottom:8px;color:var(--column-blue);font-weight:900}.column-toc ol{margin:8px 0 0;padding-left:24px}.column-toc a{text-decoration:none}.column-toc a:hover{text-decoration:underline}.column-article-body{font-size:16px}.column-article-body h2,.column-faq h2{margin:64px 0 22px;padding-bottom:11px;border-bottom:3px solid var(--column-orange);color:var(--column-navy);font-size:28px;line-height:1.5}.column-article-body h3{margin:38px 0 14px;color:var(--column-navy);font-size:21px;line-height:1.55}.column-article-body p{margin:0 0 22px}.column-article-body a{color:var(--column-blue);font-weight:700}.column-article-body mark{padding:0 .12em;background:linear-gradient(transparent 55%,var(--column-yellow) 55%);color:inherit}.column-article-body blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--column-blue);background:#f5f8fa}.column-article-body blockquote p{margin:0}.column-article-body ul,.column-article-body ol{padding-left:1.5em}.column-article-body li{margin:7px 0}.column-article-body>ol{padding-left:0;list-style:none;counter-reset:column-step}.column-article-body>ol>li{position:relative;margin:0 0 0 18px;padding:0 0 24px 42px;border-left:2px solid #cfe0e7;counter-increment:column-step}.column-article-body>ol>li:last-child{border-left-color:transparent}.column-article-body>ol>li::before{position:absolute;left:-18px;top:0;display:grid;width:34px;height:34px;border-radius:50%;place-items:center;color:#fff;background:var(--column-orange);font-weight:900;content:counter(column-step)}.column-article-body .contains-task-list{padding:22px 24px;list-style:none;border-radius:14px;background:var(--column-cream)}.column-article-body .task-list-item input{margin-right:9px}.column-conclusion{margin:28px 0 34px;padding:24px 28px;border:2px solid #f2be91;border-radius:15px;background:var(--column-cream)}.column-conclusion ol{margin:8px 0 0}.column-article-body table{width:100%;border-collapse:collapse;min-width:560px}.column-article-body table th,.column-article-body table td{padding:13px 14px;border:1px solid var(--column-line);text-align:left}.column-article-body table th{color:#fff;background:var(--column-navy)}.column-article-body table tr:nth-child(even){background:#f7f9fa}.column-article-body table{display:block;overflow-x:auto;margin:26px 0}.column-figure{margin:34px 0}.column-figure img{display:block;width:100%;height:auto;border-radius:15px}.column-figure figcaption{margin-top:8px;color:var(--column-muted);font-size:13px;text-align:center}.column-faq details{margin:12px 0;border:1px solid var(--column-line);border-radius:13px;background:#fff}.column-faq summary{cursor:pointer;padding:18px 52px 18px 20px;color:var(--column-navy);font-weight:800}.column-faq details p{margin:0;padding:0 20px 20px}.column-cta{margin:64px 0 40px;padding:38px 28px;border-radius:20px;color:#fff;background:var(--column-navy);text-align:center}.column-cta h2{margin:0 0 20px;font-size:26px;line-height:1.5}.column-cta>a{display:inline-block;padding:13px 24px;border-radius:999px;background:var(--column-orange);font-weight:900;text-decoration:none}.column-cta>div{display:flex;flex-wrap:wrap;justify-content:center;gap:7px 18px;margin-top:18px;font-size:12px}.column-related{margin-top:44px}.column-related>h2{color:var(--column-navy);font-size:22px}.column-related>div{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.column-related a{display:grid;gap:6px;padding:18px;border:1px solid var(--column-line);border-radius:13px;text-decoration:none}.column-related a span{color:var(--column-orange);font-size:12px;font-weight:800}.column-site-footer{color:#dce5ec;background:#10283c}.column-footer-inner{width:min(1120px,calc(100% - 40px));margin:auto;padding:58px 0 42px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}.column-footer-logo img{filter:brightness(0) invert(1)}.column-footer-brand p{font-size:13px;line-height:1.8}.column-footer-inner h2{margin:0 0 12px;color:#fff;font-size:14px}.column-footer-inner>div:not(:first-child){display:flex;flex-direction:column}.column-footer-inner a{margin:4px 0;color:#dce5ec;font-size:13px;text-decoration:none}.column-footer-bottom{width:min(1120px,calc(100% - 40px));margin:auto;padding:20px 0;border-top:1px solid rgba(255,255,255,.13);font-size:12px}@media(max-width:820px){.column-desktop-nav{display:none}.column-mobile-nav{display:block}.column-card-featured{grid-template-columns:1fr}.column-card-featured .column-card-body{padding:24px}.column-card-grid{grid-template-columns:repeat(2,1fr)}.column-footer-inner{grid-template-columns:1.4fr 1fr 1fr}.column-footer-inner>div:last-child{grid-column:2/-1}.column-article-body h2,.column-faq h2{font-size:24px}}@media(max-width:560px){.column-header-inner,.column-main,.column-footer-inner,.column-footer-bottom{width:min(100% - 28px,1120px)}.column-header-inner{height:62px}.column-logo img{width:124px}.column-list-hero{padding:52px 0 38px}.column-card-grid{grid-template-columns:1fr}.column-card-featured h2{font-size:24px}.column-article{padding-top:24px}.column-article-header h1{font-size:29px}.column-hero-image{margin:26px 0}.column-toc,.column-conclusion{padding:20px}.column-article-body{font-size:15.5px}.column-article-body h2,.column-faq h2{margin-top:50px;font-size:22px}.column-cta{padding:30px 18px}.column-cta>div{display:grid}.column-related>div{grid-template-columns:1fr}.column-footer-inner{grid-template-columns:1fr;gap:26px}.column-footer-inner>div:last-child{grid-column:auto}}
.column-card img{height:auto;aspect-ratio:16/9;object-fit:cover}.column-card-featured{display:block;margin-bottom:30px}.column-card-featured .column-card-body{padding:28px 30px}.column-card-featured h2{font-size:clamp(24px,3vw,32px)}@media(max-width:560px){.column-card-featured .column-card-body{padding:22px}.column-card-featured h2{font-size:24px}}
.column-table-scroll{width:100%;max-width:100%;overflow-x:auto;margin:26px 0;-webkit-overflow-scrolling:touch}.column-table-scroll:focus-visible{outline:3px solid var(--column-blue);outline-offset:3px}.column-article-body .column-table-scroll table{display:table;width:100%;min-width:560px;margin:0;overflow:visible}