:root{color-scheme:light;--ink:#17251f;--muted:#5b6b63;--green:#176b4d;--green-dark:#0f4f39;--green-soft:#e8f4ed;--line:#dce8e0;--paper:#fff;--wash:#f4f8f5;--accent:#d6a744;color:var(--ink);background:var(--wash);font-synthesis:none;font-family:Noto Sans JP,Hiragino Kaku Gothic ProN,Yu Gothic,system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 12% 0%, #d6ebdfa3, transparent 34rem), var(--wash);min-width:320px;margin:0}a{color:var(--green);text-underline-offset:.18em}a:hover{color:var(--green-dark)}img{max-width:100%}.site-shell{width:min(1120px,100% - 40px);margin-inline:auto}.site-header{z-index:10;backdrop-filter:blur(14px);background:#ffffffe0;border-bottom:1px solid #dce8e0db;position:sticky;top:0}.site-header__inner{justify-content:space-between;align-items:center;gap:24px;min-height:70px;display:flex}.brand{color:var(--ink);letter-spacing:.08em;align-items:center;gap:11px;font-size:1.05rem;font-weight:800;text-decoration:none;display:inline-flex}.brand__mark{color:#fff;background:linear-gradient(145deg,#247d5c,#0f513a);border-radius:10px 10px 10px 3px;place-items:center;width:32px;height:32px;font-size:.78rem;display:grid;box-shadow:0 8px 20px #176b4d33}.site-nav{color:var(--muted);gap:22px;font-size:.9rem;display:flex}.site-nav a{color:inherit;text-decoration:none}.site-main{min-height:calc(100vh - 210px)}.site-footer{border-top:1px solid var(--line);color:var(--muted);margin-top:80px;padding:34px 0 42px;font-size:.85rem}.site-footer__inner{justify-content:space-between;align-items:center;gap:20px;display:flex}.footer-links{gap:18px;display:flex}.footer-links a{color:inherit}.footer-links button{color:inherit;font:inherit;text-underline-offset:.18em;cursor:pointer;background:0 0;border:0;padding:0;text-decoration:underline}.eyebrow{color:var(--green);letter-spacing:.16em;text-transform:uppercase;margin:0 0 12px;font-size:.78rem;font-weight:800}.hero{padding:clamp(72px,11vw,132px) 0 64px}.hero__grid{grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);align-items:end;gap:clamp(36px,7vw,88px);display:grid}.hero h1{letter-spacing:-.045em;max-width:780px;margin:0;font-size:clamp(1.62rem,5vw,3.5rem);line-height:1.08}.hero__title-line{white-space:nowrap;display:block}.hero__title-line--accent{color:var(--green)}.hero__lead{max-width:720px;color:var(--muted);margin:26px 0 0;font-size:clamp(1rem,1.6vw,1.16rem);line-height:2}.hero__note{border:1px solid var(--line);background:#ffffffc2;border-radius:22px;padding:24px;box-shadow:0 20px 60px #2a523b17}.hero__note strong{color:var(--green-dark);margin-bottom:8px;font-size:1.08rem;display:block}.hero__note p{color:var(--muted);margin:0;line-height:1.8}.hero__note-link{margin-top:14px;font-size:.9rem;font-weight:700;display:inline-flex}.section{padding:52px 0}.section__head{justify-content:space-between;align-items:end;gap:24px;margin-bottom:26px;display:flex}.section__head h2{letter-spacing:-.03em;margin:0;font-size:clamp(1.7rem,3.7vw,2.55rem)}.article-grid{grid-template-columns:repeat(12,1fr);gap:24px;display:grid}.article-card{color:inherit;border:1px solid var(--line);background:var(--paper);border-radius:26px;grid-column:span 8;padding:clamp(26px,4vw,42px);text-decoration:none;transition:transform .18s,box-shadow .18s;display:block;box-shadow:0 20px 60px #2a523b14}.article-card:hover{color:inherit;transform:translateY(-3px);box-shadow:0 26px 70px #2a523b21}.article-card__meta,.article-meta{color:var(--muted);flex-wrap:wrap;gap:8px 16px;font-size:.82rem;display:flex}.article-card__category{color:var(--green);font-weight:800}.article-card h3{letter-spacing:-.025em;margin:18px 0 12px;font-size:clamp(1.45rem,3vw,2.05rem);line-height:1.45}.article-card p{color:var(--muted);margin:0;line-height:1.85}.article-card__more{color:var(--green);margin-top:24px;font-weight:800;display:inline-flex}.article-hero{padding:clamp(44px,6vw,64px) 0 30px}.article-hero__inner{max-width:960px}.breadcrumbs{color:var(--muted);margin-bottom:24px;font-size:.82rem}.breadcrumbs ol{align-items:center;gap:8px;min-width:0;margin:0;padding:0;list-style:none;display:flex}.breadcrumbs li{min-width:0}.breadcrumbs li+li:before{color:#93a39a;content:"/";margin-right:8px}.breadcrumbs li[aria-current=page]{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.breadcrumbs a{color:inherit}.article-hero .article-meta{align-items:center;gap:8px 14px;margin-bottom:16px}.article-meta__category{color:var(--green-dark);font-weight:800}.article-hero h1{letter-spacing:-.035em;line-break:strict;text-wrap:balance;max-width:940px;margin:0 0 22px;font-size:clamp(2.7rem,4vw,3.25rem);line-height:1.25}.article-hero__lead{max-width:720px;color:var(--muted);margin:0;font-size:1.05rem;line-height:1.85}.article-author{align-items:center;gap:12px;margin-top:22px;display:flex}.article-author__mark{color:#fff;background:var(--green);border-radius:12px 12px 12px 4px;flex:0 0 38px;place-items:center;width:38px;height:38px;font-size:.8rem;font-weight:800;display:grid}.article-author strong,.article-author small{display:block}.article-author strong{font-size:.9rem}.article-author small{color:var(--muted);margin-top:2px;font-size:.78rem}.article-wrap{max-width:920px}.article-body{width:100%;min-width:0;margin-inline:auto;padding:0}.article-body>:first-child{margin-top:0}.article-body>h1:first-child{display:none}.article-body>:where(p,h2,h3,ul,ol,blockquote),.copy-prompt,.article-faq,.related-articles,.share-panel{width:min(100%,760px);margin-left:auto;margin-right:auto}.article-body h2{letter-spacing:-.025em;margin:3.4rem 0 1.2rem;padding-top:.35rem;scroll-margin-top:96px;font-size:clamp(1.45rem,3vw,2rem);line-height:1.45}.article-body h2:before{content:"";background:linear-gradient(90deg, var(--green), var(--accent));border-radius:999px;width:42px;height:4px;margin-bottom:15px;display:block}.article-body>h3{border-left:4px solid var(--green);color:var(--green-dark);letter-spacing:-.01em;overflow-wrap:anywhere;background:#f4faf6;border-radius:0 10px 10px 0;margin:2.4rem 0 1rem;padding:.75rem .95rem;scroll-margin-top:96px;font-size:clamp(1.12rem,2vw,1.3rem);font-weight:800;line-height:1.65}.article-body p,.article-body li{font-size:1rem;line-height:2}.article-body p{margin:1.15rem 0}.article-body ul,.article-body ol{margin:1.2rem 0;padding-left:1.45rem}.article-body li+li{margin-top:.45rem}.article-body blockquote{border-left:4px solid var(--green);background:var(--green-soft);border-radius:0 14px 14px 0;margin:2rem 0;padding:20px 24px}.article-body blockquote p{color:var(--green-dark);margin:0;font-size:1.08rem;font-weight:700}.article-body img{border:1px solid var(--line);background:var(--wash);border-radius:18px;width:100%;height:auto;margin:2rem auto;display:block}.article-hero .article-cover{border:1px solid var(--line);background:var(--wash);border-radius:16px;width:100%;height:auto;margin:0 auto 32px;display:block}.article-body table{border-collapse:collapse;width:100%;margin:1.8rem 0;font-size:.9rem}.article-body th,.article-body td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:13px 14px;line-height:1.65}.article-body th{background:var(--green-soft)}.article-body code{background:#eff4f1;border-radius:6px;padding:.15em .4em;font-size:.9em}.article-body pre{overscroll-behavior-inline:contain;scrollbar-color:#64748b #0f172a;border:1px solid #334155;border-radius:14px;width:min(100%,760px);margin:1.8rem auto;padding:3.2rem 1.35rem 1.3rem;position:relative;box-shadow:0 16px 34px #0f172a24;background-color:#0f172a!important;overflow-x:auto!important}.article-body pre:before{z-index:1;content:"";background:radial-gradient(circle at 18px 18px,#ff5f57 0 4px,#0000 4.5px),radial-gradient(circle at 36px 18px,#febc2e 0 4px,#0000 4.5px),radial-gradient(circle at 54px 18px,#28c840 0 4px,#0000 4.5px),#1e293b;border-bottom:1px solid #334155;border-radius:13px 13px 0 0;height:36px;position:absolute;top:0;left:0;right:0}.article-body pre:after{z-index:2;color:#94a3b8;content:attr(data-language);letter-spacing:.12em;text-transform:uppercase;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.68rem;font-weight:700;position:absolute;top:9px;right:14px}.article-body pre code{tab-size:2;background:0 0;border-radius:0;min-width:max-content;padding:0;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.9rem;line-height:1.75;display:block}.article-guide{margin-bottom:28px}.article-guide__conclusion{border-left:4px solid var(--green);background:#f4faf6;border-radius:0 10px 10px 0;padding:clamp(20px,3vw,26px)}.article-guide__eyebrow,.copy-prompt__eyebrow{color:var(--green);letter-spacing:.14em;margin:0 0 8px;font-size:.76rem;font-weight:800}.article-body .article-guide h2,.article-body .copy-prompt h2{margin:0;padding:0;font-size:clamp(1.3rem,2.6vw,1.75rem)}.article-body .article-guide h2:before,.article-body .copy-prompt h2:before{display:none}.article-body .article-guide h3{margin:0 0 14px;font-size:1.08rem}.article-guide__answers{width:auto;margin:12px 0 0}.article-body .article-guide__answer{width:auto;color:var(--green-dark);margin:0;font-size:1.04rem;font-weight:650;line-height:1.9}.article-body .article-guide__answer+.article-guide__answer{margin-top:.55rem}.article-toc{border:1px solid var(--line);background:var(--paper);border-radius:8px;width:min(100%,760px);margin-top:20px;padding:20px 22px}.article-body .article-toc ol{margin:0;padding-left:1.5rem}.article-body .article-toc li{padding-left:.2rem;line-height:1.65}.article-body .article-toc li+li{margin-top:.55rem}.article-toc a{color:var(--green-dark);text-decoration-color:#9ebcaf;text-decoration-thickness:1px}.article-toc a:focus-visible{outline-offset:3px;border-radius:3px;outline:3px solid #176b4d3d}.copy-prompt{background:#f8fbf9;border:1px solid #c9ded1;border-radius:20px;margin-top:3.5rem;padding:clamp(22px,4vw,30px)}.copy-prompt__head{justify-content:space-between;align-items:center;gap:18px;display:flex}.copy-prompt__button{border:1px solid var(--green);color:#fff;background:var(--green);min-height:42px;font:inherit;cursor:pointer;border-radius:999px;flex:none;padding:8px 15px;font-size:.86rem;font-weight:800}.copy-prompt__button:hover{background:var(--green-dark)}.copy-prompt__button:focus-visible{outline-offset:3px;outline:3px solid #176b4d40}.article-body .copy-prompt__text{border-left:4px solid var(--green);color:var(--ink);background:var(--paper);white-space:pre-wrap;word-break:break-word;border-radius:0 12px 12px 0;margin:20px 0 0;padding:20px 22px;font-family:inherit;font-size:1rem;line-height:2}.article-body .copy-prompt__status{min-height:1.4rem;color:var(--green-dark);margin:8px 0 0;font-size:.82rem;font-weight:700}.article-faq{margin-top:3.5rem}.article-faq__items{border-top:1px solid var(--line);margin-top:1.4rem}.article-faq__item{border-bottom:1px solid var(--line);padding:1.6rem 0}.article-body .article-faq__item h3{color:var(--green-dark);margin:0 0 .65rem;font-size:1.05rem;line-height:1.7}.article-body .article-faq__item p{color:var(--muted);margin:0;line-height:1.9}.related-articles{border-top:1px solid var(--line);margin-top:3.5rem;padding-top:3.2rem}.related-articles__eyebrow{color:var(--green);letter-spacing:.14em;margin:0 0 8px;font-size:.74rem;font-weight:800}.article-body .related-articles h2{margin:0;padding:0;font-size:clamp(1.4rem,2.8vw,1.85rem)}.article-body .related-articles h2:before{display:none}.article-body .related-articles__intro{color:var(--muted);margin:10px 0 0;font-size:.92rem;line-height:1.8}.article-body .related-articles__list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:22px 0 0;padding:0;list-style:none;display:grid}.article-body .related-articles__list li,.article-body .related-articles__list li+li{margin:0}.related-articles__card{border:1px solid var(--line);height:100%;color:var(--ink);background:var(--paper);border-radius:16px;flex-direction:column;padding:20px;text-decoration:none;transition:border-color .18s,box-shadow .18s,transform .18s;display:flex}.related-articles__card:hover{color:var(--ink);border-color:#b7d0c0;transform:translateY(-2px);box-shadow:0 14px 34px #2a523b1a}.related-articles__card:focus-visible{outline-offset:3px;outline:3px solid #176b4d40}.related-articles__category{color:var(--green);font-size:.74rem;font-weight:800}.article-body .related-articles__card h3{margin:10px 0 0;font-size:1.02rem;line-height:1.65}.article-body .related-articles__card p{color:var(--muted);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:10px 0 0;font-size:.86rem;line-height:1.75;display:-webkit-box;overflow:hidden}.related-articles__more{color:var(--green-dark);margin-top:auto;padding-top:16px;font-size:.82rem;font-weight:800}.share-panel{border:1px solid var(--line);background:var(--wash);border-radius:20px;margin-top:3.5rem;padding:clamp(22px,4vw,30px)}.article-body .share-panel h2{margin:0 0 8px;padding:0;font-size:1.35rem}.article-body .share-panel h2:before{display:none}.article-body .share-panel>p{color:var(--muted);margin:0;font-size:.92rem;line-height:1.7}.share-buttons{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:20px;display:grid}.share-button{border:1px solid var(--line);min-height:48px;color:var(--ink);background:var(--paper);font:inherit;text-align:left;cursor:pointer;border-radius:12px;align-items:center;gap:10px;padding:8px 12px;font-size:.86rem;font-weight:700;line-height:1.4;text-decoration:none;display:flex}.share-button:hover{color:var(--green-dark);background:#fbfdfb;border-color:#b7d0c0}.share-button:focus-visible{outline-offset:2px;outline:3px solid #176b4d40}.share-button__mark{border-radius:8px;flex:0 0 28px;place-items:center;width:28px;height:28px;font-size:.8rem;font-weight:800;display:inline-grid}.share-button__mark--x{color:#fff;background:#111}.share-button__mark--facebook{color:#fff;background:#1877f2}.share-button__mark--line{color:#102417;background:#06c755}.share-button__mark--hatena{color:#08212a;background:#00a4de}.share-button__mark--copy,.share-button__mark--native{color:var(--green-dark);background:var(--green-soft);font-size:1rem}.article-body .share-status{min-height:1.5rem;color:var(--green-dark);margin-top:10px;font-size:.82rem;font-weight:700}.page-hero{padding:clamp(54px,9vw,96px) 0 34px}.page-shell{max-width:820px}.page-hero h1{letter-spacing:-.04em;margin:16px 0 22px;font-size:clamp(2rem,5vw,4rem);line-height:1.2}.page-hero p:last-child{color:var(--muted);font-size:1.05rem;line-height:1.9}.policy-content{border:1px solid var(--line);background:var(--paper);border-radius:26px;padding:clamp(28px,5vw,54px);box-shadow:0 20px 70px #2a523b14}.policy-content section+section{margin-top:3rem}.policy-content h2{margin:0 0 1rem;font-size:clamp(1.35rem,3vw,1.8rem)}.policy-content p{margin:0;line-height:2}.button-primary,.button-secondary{min-height:44px;font:inherit;cursor:pointer;border-radius:999px;padding:10px 18px;font-weight:700}.button-primary{color:#fff;border:1px solid var(--green);background:var(--green)}.button-secondary{color:var(--green-dark);border:1px solid var(--line);background:#fff}.policy-cookie-button{margin-top:16px}.cookie-consent[hidden]{display:none}.cookie-consent{z-index:30;position:fixed;bottom:20px;left:20px;right:20px}.cookie-consent__inner{border:1px solid var(--line);background:#fffffff7;border-radius:18px;justify-content:space-between;align-items:center;gap:24px;width:min(940px,100%);margin-inline:auto;padding:18px 20px;display:flex;box-shadow:0 24px 70px #17251f38}.cookie-consent__inner p{color:var(--muted);margin:0;font-size:.86rem;line-height:1.7}.cookie-consent__actions{flex:none;gap:10px;display:flex}.not-found{text-align:center;max-width:680px;margin:0 auto;padding:120px 0}.not-found h1{color:var(--green);margin:0 0 18px;font-size:clamp(3rem,12vw,7rem)}@media (width<=820px){.site-nav{gap:12px;display:flex}.site-nav a:last-child{display:none}.hero__grid{grid-template-columns:minmax(0,1fr)}.hero__note{max-width:520px}.article-card{grid-column:1/-1}}@media (width<=560px){.site-shell{width:min(100% - 24px,1120px)}.site-header__inner{min-height:62px}.site-nav{font-size:.82rem;font-weight:700}.hero{padding-top:56px}.article-hero{padding:30px 0 24px}.breadcrumbs{margin-bottom:20px}.breadcrumbs li:last-child,.breadcrumbs li:nth-last-child(2):after{display:none}.article-hero .article-meta{margin-bottom:14px;font-size:.76rem}.article-hero h1{letter-spacing:-.025em;margin-bottom:18px;font-size:1.875rem;line-height:1.32}.article-hero__lead{font-size:1rem;line-height:1.8}.article-author{margin-top:18px}.article-guide{margin-bottom:24px}.article-guide__conclusion{padding:18px}.article-body .article-guide__answer{font-size:1rem}.article-toc{margin-top:16px;padding:17px 18px}.article-hero .article-cover{border-radius:12px;margin-bottom:24px}.article-body pre{border-radius:11px;padding:3rem 1rem 1.05rem}.article-body pre:before{border-radius:10px 10px 0 0}.article-body pre code{font-size:.82rem}.article-body table{white-space:nowrap;max-width:100%;display:block;overflow-x:auto}.article-body .related-articles__list{grid-template-columns:minmax(0,1fr)}.copy-prompt__head{flex-direction:column;align-items:flex-start}.copy-prompt__button{width:100%}.share-buttons{grid-template-columns:1fr}.site-footer__inner{flex-direction:column;align-items:flex-start}.footer-links{flex-wrap:wrap}.cookie-consent{bottom:12px;left:12px;right:12px}.cookie-consent__inner{flex-direction:column;align-items:stretch;gap:14px}.cookie-consent__actions{justify-content:flex-end}}