:root{--bg:#fffdf8;--main:#8ed4e8;--sub:#ffe3a1;--pink:#f8c9d3;--green:#cbe7b9;--text:#303030;--muted:#68685f;--line:#e7e4da;--ink:#363a34;--white:#fff;--radius:20px}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:Noto Sans JP,Yu Gothic,Meiryo,sans-serif;font-size:15px;line-height:1.9}a{color:inherit;text-underline-offset:5px}img{max-width:100%;height:auto;display:block}button,input,select{font:inherit}a,button,input,select{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:5px;outline:3px solid #24738c}[hidden]{display:none!important}.container{max-width:1160px;margin:auto;padding:0 28px}header{border-bottom:1px solid var(--line);background:#fff}.header-inner{justify-content:space-between;align-items:center;max-width:1160px;margin:auto;padding:24px 28px 20px;display:flex}.brand{letter-spacing:.015em;align-items:center;gap:12px;font-size:23px;font-weight:900;text-decoration:none;display:flex}.brand small{letter-spacing:.2em;color:var(--muted);font-size:10px;line-height:1.5;display:block}.brand-mark{background:var(--main);border:2px solid var(--ink);box-shadow:3px 3px 0 var(--ink);text-align:center;border-radius:15px;width:47px;height:47px;font-size:27px;line-height:43px;transform:rotate(-5deg)}.search-link{border:1px solid var(--line);border-radius:30px;padding:7px 18px;font-size:13px;text-decoration:none}header>nav{border-top:1px solid #f4f2ec;flex-wrap:wrap;justify-content:center;gap:38px;padding:13px 20px;display:flex}header>nav a{font-size:14px;font-weight:700;text-decoration:none;position:relative}header>nav a[aria-current=page]:after{content:"";background:var(--main);border-radius:5px;height:4px;position:absolute;bottom:-14px;left:0;right:0}.hero{padding-top:36px}.hero-copy{text-align:center;padding:10px 0 24px}.eyebrow{letter-spacing:.2em;color:#54727a;font-size:11px;font-weight:800}.hero h1{letter-spacing:.07em;margin:12px 0;font-size:clamp(29px,3.4vw,43px);line-height:1.5}.hero-copy p{color:var(--muted);margin:12px 0;font-size:14px}.mobile-break{display:none}.hero-image{border:2px solid var(--ink);aspect-ratio:3;object-fit:cover;border-radius:22px;width:100%;box-shadow:0 5px #e8e4d6}.hero-note{text-align:center;color:var(--muted);padding:18px 4px;font-size:12px}.dot{background:#7caa67;border-radius:50%;width:7px;height:7px;margin-right:6px;display:inline-block}section{margin-bottom:64px}.section-heading{justify-content:space-between;align-items:end;margin-bottom:24px;display:flex}.section-heading h2{letter-spacing:.04em;margin:1px 0;font-size:26px}.section-heading p{color:var(--muted);margin:0;font-size:13px}.category-grid{grid-template-columns:repeat(4,1fr);gap:18px;display:grid}.category{border:2px solid var(--ink);border-radius:var(--radius);box-shadow:3px 4px 0 var(--ink);padding:21px 22px;text-decoration:none;transition:transform .15s,box-shadow .15s;display:block}.category:hover{box-shadow:5px 7px 0 var(--ink);transform:translate(-2px,-3px)}.blue{background:#dcf2f8}.yellow{background:#fff0c9}.green{background:#e5f2db}.pink{background:#fce4e9}.category-top{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.category-icon{border:2px solid var(--ink);background:#fff;border-radius:15px;place-items:center;width:48px;height:48px;font-size:28px;line-height:1;display:grid}.number{color:#5c655c;letter-spacing:.1em;font-size:12px}.category small{letter-spacing:.14em;font-size:10px;font-weight:700}.category h3{justify-content:space-between;margin:0 0 10px;font-size:21px;display:flex}.category p{margin:0;font-size:12px;line-height:1.8}.text-link{font-size:13px;font-weight:700;text-decoration:none}.empty{border-radius:var(--radius);text-align:center;background:#fffefb;border:1px dashed #cfcfc2;padding:35px 20px}.empty>span{color:#6e9cab;font-size:35px}.empty h3{margin:3px 0 10px;font-size:17px}.empty p{color:var(--muted);margin:0;font-size:13px}.stamp-feature{background:#f8eee2;border:1px solid #e9ddce;border-radius:24px;grid-template-columns:1fr 1.1fr;align-items:center;gap:32px;padding:34px;display:grid;overflow:hidden}.pill{letter-spacing:.14em;border:1px solid var(--ink);background:#fff;border-radius:20px;padding:6px 13px;font-size:10px;font-weight:700}.stamp-feature h2{margin:19px 0 14px;font-size:29px;line-height:1.6}.stamp-feature p{color:#655e55;font-size:13px}.stamp-feature img{border:1px solid #ddceba;border-radius:12px}.button{background:var(--ink);color:#fff;border:2px solid var(--ink);cursor:pointer;border-radius:30px;padding:10px 23px;font-size:13px;font-weight:700;text-decoration:none;display:inline-block}.button:hover{background:#555d50}.stamp-feature .button{margin-top:14px}.news-strip{border-top:1px solid var(--line);grid-template-columns:190px 1fr auto;align-items:center;gap:20px;padding-top:28px;display:grid}.news-strip h2{margin:0;font-size:22px}.news-strip p{color:var(--muted);font-size:13px}footer{border-top:1px solid var(--line);background:#f4f3ec;margin-top:80px;padding:40px 0 25px}.footer-brand{font-size:20px;font-weight:800;text-decoration:none}.footer-brand span{color:var(--muted);margin-top:5px;font-size:12px;font-weight:400;display:block}footer nav{flex-wrap:wrap;gap:26px;margin:25px 0;font-size:12px;display:flex}footer small{color:var(--muted);font-size:10px}.breadcrumbs{color:var(--muted);flex-wrap:wrap;gap:10px;margin-top:23px;font-size:11px;display:flex}.breadcrumbs a{text-decoration:none}.page-heading{padding:40px 0 30px}.page-heading h1{margin:6px 0;font-size:34px}.page-heading p{color:var(--muted)}.content-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.content-card{border:1px solid var(--line);overflow-wrap:anywhere;background:#fff;border-radius:18px;padding:24px;text-decoration:none;display:block}.content-card:hover{border-color:#6496a4}.content-card h3{font-size:19px}.content-card p{color:var(--muted);font-size:14px}.content-card small{color:var(--muted);font-size:11px}.content-card img{aspect-ratio:16/9;object-fit:cover;border-radius:10px;margin-bottom:15px}.filter-item{margin-bottom:20px}.filter-item .content-grid{grid-template-columns:1fr}.filter-panel{background:#f1f3ed;border-radius:15px;flex-wrap:wrap;align-items:end;gap:20px;margin-bottom:30px;padding:20px;display:flex}label{font-size:13px;font-weight:700;display:block}input,select{max-width:100%;color:var(--text);background:#fff;border:1px solid #a8ada4;border-radius:9px;padding:11px 13px;display:block}input[type=search]{width:100%;min-width:0}.search-box{gap:12px;margin-top:10px;display:flex}.search-box input{flex:1}.article{overflow-wrap:anywhere;max-width:780px;margin:40px auto 60px}.article h1{font-size:32px;line-height:1.6}.metadata{color:var(--muted);font-size:12px}.tags{flex-wrap:wrap;gap:8px;display:flex}.tags span{background:#e5f2f4;border-radius:20px;padding:3px 12px;font-size:11px}.toc{background:#f1f4f0;border-radius:15px;margin:30px 0;padding:20px 28px}.toc h2{margin:0;font-size:17px}.toc .sub{margin-left:16px}.prose h2{border-bottom:2px solid #d5e7e7;margin-top:40px;padding-bottom:10px;font-size:23px}.prose h3{margin-top:30px;font-size:19px}.prose p,.prose li{line-height:2}.prose a{color:#246b7f}.prose pre{background:#f0f0eb;border-radius:8px;padding:18px;overflow:auto}.prose table{border-collapse:collapse;display:block;overflow:auto}.prose td,.prose th{border:1px solid var(--line);padding:10px}.feature-detail{max-width:880px;margin:auto}.feature-detail img{border:1px solid var(--line);border-radius:16px;margin:30px 0}.notice{background:#f4f0e3;border-radius:13px;margin:25px 0;padding:20px}.ad{text-align:center;max-width:100%;margin:30px 0;overflow:hidden}.ad small{display:block}.skip{z-index:10;background:#fff;padding:12px;position:fixed;top:-100px}.skip:focus{top:0}.error-page{margin-top:60px}.error-page p{margin-bottom:25px}@media (width<=800px){.category-grid{grid-template-columns:repeat(2,1fr)}.stamp-feature{gap:24px;padding:25px}.stamp-feature h2{font-size:24px}.content-grid{grid-template-columns:repeat(2,minmax(0,1fr))}header>nav{gap:25px}.news-strip{grid-template-columns:150px 1fr}.news-strip>a{grid-column:2}}@media (width<=520px){.container{padding:0 18px}.header-inner{padding:18px}.brand{gap:9px;font-size:18px}.brand-mark{width:39px;height:39px;font-size:24px;line-height:35px}.brand small{font-size:8px}.search-link{padding:0 10px;font-size:23px}.search-link span{display:none}header>nav{justify-content:space-around;gap:0;padding:11px 8px}header>nav a{font-size:11px}header>nav a[aria-current=page]:after{bottom:-12px}.hero{margin-bottom:40px;padding-top:25px}.mobile-break{display:block}.hero-copy{padding-bottom:20px}.hero h1{font-size:29px}.hero-copy p{font-size:12px}.hero-image{border-radius:13px}.hero-note{padding:15px 3px;font-size:10px}.section-heading{align-items:center}.section-heading h2{font-size:22px}.section-heading>p{display:none}.eyebrow{font-size:9px}.category-grid{gap:13px}.category{box-shadow:2px 3px 0 var(--ink);border-radius:16px;padding:16px}.category h3{font-size:18px}.category p{font-size:11px}.category-top{margin-bottom:12px}.category-icon{width:40px;height:40px;font-size:23px}.category small{font-size:9px}section{margin-bottom:42px}.stamp-feature{grid-template-columns:1fr;gap:25px;padding:25px}.stamp-feature h2{font-size:27px}.stamp-feature img{width:100%}.news-strip{grid-template-columns:1fr;gap:6px}.news-strip>a{grid-column:auto}.content-grid{grid-template-columns:1fr}.page-heading h1{font-size:28px}.filter-panel{display:block}.filter-panel label{margin-bottom:15px}.filter-panel select{width:100%}.article{margin-top:30px}.article h1{font-size:27px}.search-box{gap:8px}.search-box .button{padding:8px 18px}footer nav{gap:12px 22px}.footer-brand{font-size:18px}footer{margin-top:50px}}@media (prefers-reduced-motion:reduce){*{transition:none!important}}