:root{--reserved-ad-display:none;--navy:#111827;--coral:#ff654f;--accent:#ba3926;--muted:#637080;--line:#e6e9ed;--soft:#f5f6f8;--white:#fff;--max:1120px;color:var(--navy);font-family:Arial,Helvetica,sans-serif;font-size:16px;background:#fff}*{box-sizing:border-box}body{margin:0}a{color:inherit}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button{color:var(--navy)}[hidden]{display:none!important}.skip{position:absolute;left:20px;top:-100px;background:var(--navy);color:white;padding:14px;z-index:99}.skip:focus{top:10px}.site-header{border-bottom:1px solid var(--line);background:white}.header-inner{max-width:var(--max);margin:auto;height:86px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:34px;font-weight:800;letter-spacing:-1.7px}.brand img{border-radius:10px}.brand-dot{color:var(--coral)}.header-note{font-size:14px;color:var(--muted);margin-right:auto;margin-left:24px}.search-toggle{border:0;background:none;display:flex;align-items:center;gap:10px;font-size:14px;min-height:44px;padding:10px}.search-panel{max-width:var(--max);margin:20px auto;display:flex;align-items:center;gap:16px}.search-panel label{font-size:14px}.search-panel input{flex:1;border:1px solid var(--line);border-radius:6px;padding:13px;min-width:0}.search-panel button{border:0;background:var(--soft);padding:13px;border-radius:6px}.nav-wrap{border-bottom:1px solid var(--line);position:relative;background:white}.categories{max-width:var(--max);margin:auto;display:flex;align-items:center;gap:32px;height:56px;position:relative}.category{height:56px;padding:0 2px;display:flex;align-items:center;justify-content:center;font-size:14px;text-decoration:none;border-bottom:3px solid transparent;white-space:nowrap;font-weight:600}.category.active{border-color:var(--coral);color:var(--accent)}.more-categories{margin-left:auto;position:relative}.more-categories summary{list-style:none;cursor:pointer;font-size:14px;min-height:44px;display:flex;align-items:center;gap:10px;padding:8px}.more-categories summary::after{content:'⌄';font-size:18px}.more-menu{position:absolute;right:0;top:46px;z-index:20;min-width:180px;background:white;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 30px #11182712;padding:8px}.more-menu a{display:block;padding:13px;text-decoration:none;font-size:14px;border-radius:4px}.more-menu a:hover{background:var(--soft)}main{max-width:var(--max);margin:0 auto;min-height:70vh}.ad{background:var(--soft);border:1px solid var(--line);height:108px;max-width:970px;margin:28px auto 32px;display:var(--reserved-ad-display);flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#767f8c;font-size:12px;letter-spacing:1.5px;text-transform:uppercase}.ad .ad-size{font-size:11px;letter-spacing:.3px;color:#8b939f}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin:35px 0 24px}.section-head h1{font-size:32px;letter-spacing:-1.1px;margin:0;line-height:1.1}.section-head span{font-size:14px;color:var(--muted)}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px 26px}.card{text-decoration:none;display:block;min-width:0}.card-picture{overflow:hidden;background:var(--soft);aspect-ratio:1.55;position:relative;border-radius:8px}.card img{width:100%;height:100%;object-fit:cover;transition:transform .25s}.card:hover img{transform:scale(1.035)}.card:hover h2{color:var(--accent)}.card-meta{display:flex;align-items:center;gap:10px;font-size:12px;margin:17px 0 10px;color:var(--muted)}.card-meta .topic{color:var(--accent);font-weight:700}.card h2{font-size:23px;letter-spacing:-.6px;line-height:1.22;margin:0;font-weight:750;max-width:30ch}.card .readtime{margin-top:12px;font-size:12px;color:var(--muted)}.card-badge{position:absolute;left:14px;bottom:14px;border-radius:5px;padding:7px 10px;background:white;font-weight:800;font-size:13px;box-shadow:0 2px 8px #0001}.home-bottom{margin-top:38px}.empty{border:1px solid var(--line);padding:45px 25px;border-radius:8px;text-align:center}.empty h2{margin-top:0}.empty p{color:var(--muted);line-height:1.6}.text-button{border:0;background:none;padding:12px;text-decoration:underline;min-height:44px}.reader-shell{max-width:820px;margin:auto}.breadcrumb{display:flex;gap:9px;align-items:center;font-size:13px;color:var(--muted);margin:28px 0 25px}.breadcrumb a{text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.article-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);margin-bottom:13px}.article-meta .topic{color:var(--accent);font-weight:700}.article-title{font-size:44px;letter-spacing:-1.5px;line-height:1.1;margin:0 0 18px;max-width:24ch}.article-submeta{font-size:13px;color:var(--muted);margin-bottom:28px}.reader-top{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:18px;margin-bottom:16px;gap:12px}.step-label{font-size:14px;font-weight:700}.jump{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.jump select{max-width:160px;min-height:44px;border:1px solid var(--line);border-radius:6px;background:white;padding:9px;font-size:13px;color:var(--navy)}.progress{display:flex;gap:4px;margin-bottom:20px}.progress span{flex:1;height:3px;background:var(--line)}.progress span.reached{background:var(--coral)}figure{margin:0}.article-image{width:100%;height:410px;object-fit:cover;border-radius:8px;background:var(--soft);display:block}.article-image.building{object-fit:contain;background:#f2f4f7}.caption{display:flex;justify-content:space-between;gap:16px;font-size:11px;color:var(--muted);margin-top:9px;line-height:1.4}.caption a{text-decoration:none}.entry-title{display:flex;align-items:flex-start;gap:18px;margin-top:28px}.rank-number{font-size:39px;font-weight:800;color:var(--accent);letter-spacing:-1.7px;line-height:1.15}.entry-title h2{font-size:31px;line-height:1.15;letter-spacing:-.8px;margin:0}.location{font-size:14px;color:var(--muted);margin-top:8px}.article-body{font-size:17px;line-height:1.75;max-width:68ch;margin-top:20px}.article-body p{margin:0 0 18px}.article-body .method{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;line-height:1.6}.article-body .method a{text-decoration:underline}.reader-controls{display:flex;align-items:center;gap:16px;justify-content:space-between;border-top:1px solid var(--line);padding:20px 0;margin-top:25px;background:white}.btn{min-height:48px;min-width:136px;padding:14px 20px;border-radius:6px;border:1px solid var(--line);font-weight:700;font-size:14px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:14px;background:white}.btn.primary{background:var(--navy);color:white;border-color:var(--navy)}.btn.primary:hover{background:#263347}.btn:hover{border-color:var(--navy)}.btn:disabled{color:#9ca3af;background:var(--soft);border-color:var(--line)}.control-position{font-size:13px;color:var(--muted)}.reader-bottom{margin-top:20px;margin-bottom:38px}.preview-note{padding:18px 20px;background:var(--soft);border:1px solid var(--line);border-radius:6px;font-size:14px;line-height:1.6}.preview-note p{margin:0 0 12px}.preview-note .btn{font-size:13px}footer{max-width:var(--max);border-top:1px solid var(--line);margin:30px auto 0;padding:30px 0 40px;display:flex;align-items:center;gap:24px;color:var(--muted);font-size:13px}.footer-brand{font-size:24px;color:var(--navy);gap:0;letter-spacing:-1px}footer>span{margin-right:auto}footer button{font-size:12px;border:0;background:none;color:var(--muted);padding:10px}dialog{max-width:620px;width:calc(100% - 32px);padding:25px;border:1px solid var(--line);border-radius:12px;color:var(--navy)}dialog::backdrop{background:#11182799}.dialog-head{display:flex;justify-content:space-between;align-items:center}.dialog-head h2{font-size:24px;margin:0}.dialog-head button{background:var(--soft);border:0;min-width:44px;min-height:44px;border-radius:5px}dialog p{font-size:14px;line-height:1.6;color:var(--muted)}#credits-list{max-height:50vh;overflow:auto}#credits-list a{display:block;font-size:14px;padding:9px 0}.reader-controls svg{width:16px;height:16px;flex-shrink:0}
@media(min-width:900px){.card:first-child{grid-column:span 2;grid-row:span 2}.card:first-child .card-picture{aspect-ratio:1.38}.card:first-child h2{font-size:38px;max-width:24ch;letter-spacing:-1.2px}.card:first-child .readtime{margin-top:14px}.card:first-child .card-meta{margin-top:20px}.card:nth-child(2) .card-picture,.card:nth-child(3) .card-picture{aspect-ratio:2.05}.card:nth-child(2) h2,.card:nth-child(3) h2{font-size:21px}.card:nth-child(2) .readtime,.card:nth-child(3) .readtime{display:none}}
@media(max-width:1180px){.header-inner,.categories,main,footer,.search-panel{margin-left:28px;margin-right:28px}.categories{gap:27px}}
@media(max-width:700px){.header-inner{height:70px;margin:0 20px}.brand{font-size:29px;gap:8px}.brand img{width:35px;height:35px;border-radius:8px}.header-note{display:none}.search-toggle span{display:none}.categories{margin:0 20px;gap:24px;overflow:visible;height:52px}.category{height:52px;font-size:13px}.categories>.secondary{display:none}.more-categories{margin-left:auto}.more-categories summary{font-size:13px;padding-right:0}.more-menu{top:43px}.search-panel{margin:16px 20px;flex-wrap:wrap;gap:8px}.search-panel label{width:100%}.search-panel input{flex:1}.search-panel button{font-size:13px}main{margin:0 20px}.ad{height:76px;margin:20px auto 28px;gap:6px}.ad .ad-size{font-size:10px}.section-head{margin:28px 0 20px}.section-head h1{font-size:26px;letter-spacing:-.7px}.section-head span{font-size:12px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 16px}.card:first-child{grid-column:span 2}.card:first-child .card-picture{aspect-ratio:1.6}.card:first-child h2{font-size:29px;letter-spacing:-.8px}.card h2{font-size:18px;letter-spacing:-.4px}.card-picture{aspect-ratio:1.2;border-radius:6px}.card-meta{margin-top:13px;margin-bottom:8px;font-size:11px;gap:5px}.card-meta .sample{display:none}.card .readtime{font-size:11px;margin-top:9px}.card-badge{left:10px;bottom:10px;font-size:11px;padding:6px 8px}.home-bottom{margin-top:28px}.breadcrumb{margin:23px 0;font-size:12px}.article-title{font-size:34px;letter-spacing:-1.1px}.article-submeta{font-size:12px;margin-bottom:22px}.reader-top{padding-top:12px;margin-bottom:12px}.jump label{display:none}.jump select{max-width:155px;font-size:12px}.step-label{font-size:13px}.article-image{height:260px;border-radius:6px}.article-image.building{height:340px}.caption{font-size:10px;gap:12px}.entry-title{gap:14px;margin-top:24px}.rank-number{font-size:34px}.entry-title h2{font-size:27px}.location{font-size:13px}.article-body{font-size:16px;line-height:1.7;margin-top:19px}.article-body .method{font-size:12px}.reader-controls{position:sticky;bottom:0;z-index:5;margin-left:-20px;margin-right:-20px;padding:12px 20px;margin-top:22px;box-shadow:0 -5px 15px #11182706;gap:10px}.btn{min-width:112px;padding:13px 14px;gap:10px;font-size:13px}.control-position{font-size:12px}.reader-bottom{margin-bottom:24px;margin-top:22px}footer{margin:28px 20px 0;padding:24px 0;gap:15px;flex-wrap:wrap}footer>span{font-size:11px}.footer-brand{font-size:22px}footer button{padding:8px 0}.preview-note .btn{width:100%}}
@media(max-width:370px){.categories{gap:16px}.category{font-size:12px}.brand{font-size:27px}.card h2{font-size:17px}.section-head span{display:none}.control-position{display:none}.article-title{font-size:30px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.jump{position:relative}.jump summary{cursor:pointer;min-height:44px;padding:12px}.jump ul{position:absolute;right:0;top:32px;z-index:15;background:white;border:1px solid var(--line);padding:12px;min-width:260px;list-style:none;max-height:60vh;overflow:auto}.jump li a{display:block;padding:10px}.search-panel{flex-wrap:wrap}#search-results{width:100%}#search-results a{display:block;padding:10px}.reader-inline{margin-top:24px}.categories:has(.more-categories){gap:clamp(12px,2vw,32px)}
.language-switcher{position:relative;margin-left:auto;font-size:13px;flex-shrink:0}.language-switcher summary{cursor:pointer;min-height:44px;display:flex;align-items:center;gap:6px;padding:10px;list-style:none}.language-switcher summary::after{content:'⌄'}.language-menu{position:absolute;right:0;top:42px;z-index:30;background:white;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 30px #11182712;min-width:140px;padding:6px}.language-menu a{display:block;padding:12px;text-decoration:none;border-radius:4px}.language-menu a:hover{background:var(--soft)}.language-menu a[aria-current]{color:var(--accent);font-weight:700}@media(max-width:700px){.header-inner{gap:8px}.language-switcher summary{padding:10px 5px}.search-toggle{font-size:12px;padding:6px}.header-inner .brand{font-size:25px}.header-inner .brand img{width:30px;height:30px}}

/* Keep reserved banners hidden even when reader layout classes set display. */
.ad[data-ad-slot]{display:var(--reserved-ad-display)!important}