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:root{--primary:#5a4fcf;--primary-gradient:linear-gradient(135deg,#0e0626 0%,#1a1040 100%);--body-bg:#fff;--surface-bg:#fff;--text-primary:#000;--text-secondary:#4a5568;--text-muted:#91a8b0;--border-color:#e1eaed;--divider-color:#edf3f5;--gray-100:#f7fafc;--gray-200:#edf2f7;--gray-300:#edf3f5;--gray-400:#e1eaed;--gray-500:#a0aec0;--gray-800:#91a8b0;--gray-900:#1a202c;--color-news:#2d3748;--color-howto:#2c5282;--color-expert:#2b6cb0;--font-primary:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-japanese:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;--font-display:"Passion 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(min-width:760px){h1{font-size:3.2rem}h2{font-size:2.4rem}h3{font-size:1.8rem}p{font-size:1.7rem}}.container{width:100%;max-width:var(--container-max);padding-left:var(--space-4);padding-right:var(--space-4);margin-left:auto;margin-right:auto}@media (min-width:760px){.container{padding-left:var(--space-6);padding-right:var(--space-6)}}@media (min-width:992px){.container{padding-left:var(--space-8);padding-right:var(--space-8)}}.content-layout{gap:var(--space-8);grid-template-columns:1fr;display:grid}@media (min-width:992px){.content-layout{grid-template-columns:1fr 300px}}.badge{text-transform:uppercase;color:#fff;border-radius:4px;padding:4px 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(min-width:992px){.topbar{height:var(--header-height-desktop);padding:0 var(--space-8);max-width:var(--container-max);margin:0 auto}}.topbar>div{align-items:center;gap:var(--space-3);display:flex}.logo{align-items:center;display:flex}.logo a{align-items:center;gap:var(--space-2);display:flex}.logo h1{font-family:var(--font-display);color:var(--primary);margin:0;font-size:2.8rem}@media (min-width:992px){.logo h1{font-size:3.6rem}}.tap-target{border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex}.tap-target svg{width:18px;height:18px;color:var(--text-primary)}.topnav{background:var(--body-bg);border-bottom:1px solid var(--border-color);display:none}@media (min-width:992px){.topnav{display:block}}.topnav nav{justify-content:center;gap:var(--space-6);max-width:var(--container-max);padding:var(--space-3)var(--space-8);margin:0 auto;display:flex}.topnav a{color:var(--text-primary);font-size:1.4rem;font-weight:600;transition:color .2s}.topnav a:hover{color:var(--primary)}.topnav sup{color:var(--primary);margin-left:var(--space-1);font-size:1rem}.icon-dark{display:block}.icon-light,.dark .icon-dark{display:none}.dark .icon-light{display:block}.side-nav{background:var(--body-bg);z-index:200;width:100%;max-width:320px;height:100vh;transition:left .3s;position:fixed;top:0;left:-100%;overflow-y:auto}.side-nav.open{left:0}.side-nav .wrapper{padding:var(--space-4)}.side-nav nav>div:first-child{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;display:flex}.side-nav #sidenav-close{align-items:center;gap:var(--space-2);font-weight:600;display:flex}.side-nav ul li{border-bottom:1px solid var(--border-color)}.side-nav ul li>a,.side-nav .dropdown-btn{align-items:center;gap:var(--space-3);padding:var(--space-4);font-size:1.5rem;font-weight:500;display:flex}.side-nav .dropdown-btn{cursor:pointer;justify-content:space-between;width:100%}.side-nav .submenu{padding-left:var(--space-8);background:var(--gray-100);display:none}.dark .side-nav .submenu{background:var(--gray-400)}.side-nav input[type=checkbox]:checked+.dropdown-btn+.submenu{display:block}.side-nav input[type=checkbox]{display:none}.menu-overlay{z-index:150;opacity:0;visibility:hidden;background:#00000080;width:100%;height:100%;transition:all .3s;position:fixed;top:0;left:0}.menu-overlay.visible{opacity:1;visibility:visible}.search-bar{background:var(--body-bg);padding:var(--space-4);border-bottom:1px solid var(--border-color);z-index:50;position:absolute;top:100%;left:0;right:0;display:none!important}.search-bar.open{display:block!important}.search-bar form{max-width:600px;margin:0 auto;display:flex}.search-bar input{padding:var(--space-3)var(--space-4);border:1px solid var(--border-color);background:var(--surface-bg);color:var(--text-primary);border-radius:4px 0 0 4px;flex:1;font-size:1.6rem}.search-bar input:focus{border-color:var(--primary);outline:none}.search-bar button{padding:var(--space-3)var(--space-4);background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:0 4px 4px 0}.site-footer{background:var(--gray-900);color:#fff;padding:var(--space-12)0 var(--space-8);margin-top:var(--space-16)}.dark .site-footer{background:#0d0f10}.footer-newsletter{text-align:center;margin-bottom:var(--space-12);padding-bottom:var(--space-8);border-bottom:1px solid #ffffff1a}.footer-newsletter h3{margin-bottom:var(--space-2);font-size:2rem}.footer-newsletter p{color:var(--gray-500);margin-bottom:var(--space-6)}.newsletter-form{max-width:400px;margin:0 auto;display:flex}.newsletter-form input{padding:var(--space-3)var(--space-4);border:none;border-radius:4px 0 0 4px;flex:1;font-size:1.4rem}.newsletter-form button{padding:var(--space-3)var(--space-5);background:var(--primary-gradient);color:#fff;cursor:pointer;border:none;border-radius:0 4px 4px 0;font-weight:600}.footer-links{gap:var(--space-8);margin-bottom:var(--space-8);grid-template-columns:repeat(2,1fr);display:grid}@media (min-width:760px){.footer-links{grid-template-columns:repeat(4,1fr)}}.footer-links h4{text-transform:uppercase;color:var(--gray-500);margin-bottom:var(--space-4);font-size:1.4rem}.footer-links ul li{margin-bottom:var(--space-2)}.footer-links a{color:#fffc;font-size:1.4rem;transition:color .2s}.footer-links a:hover{color:var(--primary)}.footer-social{justify-content:center;gap:var(--space-4);margin-bottom:var(--space-8);display:flex}.footer-social a{background:#ffffff1a;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex}.footer-social a:hover{background:var(--primary)}.footer-copyright{text-align:center;color:var(--gray-500);font-size:1.3rem}.post{gap:var(--space-3);display:flex}.post-thumb{border-radius:6px;flex-shrink:0;overflow:hidden}.post-thumb img{object-fit:cover;width:100%;height:100%;transition:transform .3s}.post:hover .post-thumb img{transform:scale(1.05)}.post-content{flex-direction:column;flex:1;display:flex}.post-content h3{margin-bottom:var(--space-2)}.post-content h3 a{-webkit-line-clamp:3;-webkit-box-orient:vertical;transition:color .2s;display:-webkit-box;overflow:hidden}.post-content h3 a:hover{color:var(--primary)}.post-content footer{align-items:center;gap:var(--space-2);color:var(--text-muted);margin-top:auto;font-size:1.3rem;display:flex}.post-author{font-weight:500}.post-time,.post-comments{align-items:center;gap:var(--space-1);display:flex}.post.featured-post{flex-direction:column}.post.featured-post .post-thumb{aspect-ratio:16/9;width:100%}.post.featured-post .post-content h3{-webkit-line-clamp:2;font-size:2rem}@media (min-width:760px){.post.featured-post .post-content h3{font-size:2.4rem}}.post.prominent{background:var(--surface-bg);border-radius:8px;flex-direction:column;transition:box-shadow .3s;overflow:hidden}.post.prominent:hover{box-shadow:0 4px 12px #0000001a}.dark .post.prominent:hover{box-shadow:0 4px 12px #0000004d}.post.prominent .post-thumb{aspect-ratio:16/9;border-radius:0;width:100%}.post.prominent .post-content h3{font-size:1.6rem}@media (min-width:760px){.post.prominent .post-content h3{font-size:1.8rem}}.post.list-style{gap:var(--space-4)}.post.list-style .post-thumb{width:100px;height:100px}@media (min-width:760px){.post.list-style .post-thumb{width:180px;height:120px}}.featured{margin-bottom:var(--space-8)}.featured-grid{gap:var(--space-4);grid-template-columns:1fr;display:grid}@media (min-width:760px){.featured-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:992px){.featured-grid{grid-template-rows:repeat(2,auto);grid-template-columns:repeat(2,1fr) repeat(4,1fr)}.featured-grid .post.prominent:first-child{grid-area:1/1/3}.featured-grid .post.prominent:nth-child(2){grid-area:1/2/3}.featured-grid .post:nth-child(n+3){grid-column:auto}}.featured-grid .post:nth-child(n+3) .post-thumb{aspect-ratio:16/9;width:100%}.featured-grid .post:nth-child(n+3) .post-content h3{-webkit-line-clamp:3;font-size:1.4rem}.posts-list{gap:var(--space-6);flex-direction:column;display:flex}.posts-list .post{padding-bottom:var(--space-6);border-bottom:1px solid var(--border-color)}.posts-list .post:last-child{border-bottom:none}.load-more{width:100%;padding:var(--space-4);text-align:center;background:var(--gray-100);color:var(--text-primary);margin-top:var(--space-6);border-radius:4px;font-weight:600;transition:background .2s;display:block}.dark .load-more{background:var(--gray-400)}.load-more:hover{background:var(--gray-200)}.dark .load-more:hover{background:var(--gray-300)}.sidebar{display:none}@media (min-width:992px){.sidebar{display:block}}.widget{margin-bottom:var(--space-8)}.widget h3{margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:2px solid var(--primary);font-size:1.6rem}.widget ul li{padding:var(--space-3)0;border-bottom:1px solid var(--border-color)}.widget ul li:last-child{border-bottom:none}.widget ul li h4{margin-bottom:var(--space-2);font-size:1.4rem;font-weight:600}.widget ul li h4 a:hover{color:var(--primary)}.widget .active-readers{align-items:center;gap:var(--space-2);color:var(--text-muted);font-size:1.2rem;display:flex}.widget .active-readers span:first-of-type{color:var(--primary);font-weight:700}.ad-slot{background:var(--gray-100);color:var(--text-muted);margin-bottom:var(--space-6);border-radius:4px;justify-content:center;align-items:center;font-size:1.2rem;display:flex}.article-header{max-width:800px;margin:0 auto var(--space-8);text-align:center}.article-header .badge{margin-bottom:var(--space-4)}.article-header h1{margin-bottom:var(--space-4);font-size:2.4rem}@media (min-width:760px){.article-header h1{font-size:3.2rem}}.article-meta{justify-content:center;align-items:center;gap:var(--space-4);flex-wrap:wrap;display:flex}.meta-author{align-items:center;gap:var(--space-2);font-size:1.4rem;display:flex}.meta-author a{font-weight:600}.meta-author a:hover{color:var(--primary)}.meta-author .dot,.meta-author time{color:var(--text-muted)}.meta-share{align-items:center;gap:var(--space-3);display:flex}.share-btns{gap:var(--space-2);display:flex}.share-single{background:var(--gray-100);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;transition:all .2s;display:flex}.dark .share-single{background:var(--gray-400)}.share-single:hover{background:var(--primary);color:#fff}.share-single.facebook:hover{background:#1877f2}.share-single.twitter:hover{background:#000}.share-single.reddit:hover{background:#ff4500}.article-cover{max-width:1200px;margin:0 auto var(--space-8)}.article-cover img{aspect-ratio:2;object-fit:cover;border-radius:8px;width:100%;height:auto}.article-cover figcaption{margin-top:var(--space-2);color:var(--text-muted);text-align:center;font-size:1.4rem}.article-content{max-width:760px;margin:0 auto}.article-body{position:relative}.article-body p{margin-bottom:1.5em;font-size:1.6rem;line-height:1.8}@media (min-width:760px){.article-body p{font-size:1.7rem}}.article-body h2{margin-top:2em;margin-bottom:.75em;font-size:2.2rem}.article-body h3{margin-top:1.5em;margin-bottom:.5em;font-size:1.8rem}.article-body blockquote{border-left:4px solid var(--primary);color:var(--text-secondary);margin:1.5em 0;padding-left:1em;font-style:italic}.article-body img{border-radius:8px;max-width:100%;height:auto;margin:1.5em 0}.article-body a{color:var(--primary);text-decoration:underline}.article-body ul,.article-body ol{margin:1.5em 0;padding-left:1.5em}.article-body li{margin-bottom:.5em;list-style:outside}.article-body ol li{list-style:decimal}.story-share{display:none}@media (min-width:992px){.story-share{gap:var(--space-3);float:left;margin-left:-80px;margin-right:var(--space-4);flex-direction:column;display:flex;position:sticky;top:100px}}.related-story{background:var(--gray-100);padding:var(--space-4);margin:var(--space-6)0;border-radius:8px}.dark .related-story{background:var(--gray-300)}.related-story h5{gap:var(--space-1);flex-direction:column;display:flex}.related-story strong{text-transform:uppercase;color:var(--primary);font-size:1.2rem}.related-story span{color:var(--text-primary);font-size:1.4rem;font-weight:600}.aside-related{margin-top:var(--space-12);padding-top:var(--space-8);border-top:1px solid var(--border-color)}.aside-related h3{margin-bottom:var(--space-6);font-size:1.8rem}.related-posts{gap:var(--space-6);grid-template-columns:1fr;display:grid}@media (min-width:760px){.related-posts{grid-template-columns:repeat(2,1fr)}}.related-post{gap:var(--space-3);display:flex}.related-post 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