:root{--ink:#15251f;--muted:#66756f;--line:#e2eae6;--surface:#fff;--soft:#f5f8f6;--brand:#0b6b4f;--brand2:#07513c;--brand-soft:#e9f5f0;--accent:#e86422;--danger:#b42318;--shadow:0 20px 60px rgba(20,38,31,.09);--radius:22px;--page:1180px;--reader:760px;--reader-font:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit}img{display:block;max-width:100%}button,input,textarea,select{font:inherit}.site-top{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.top-inner-v2{width:min(calc(100% - 36px),var(--page));height:72px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand-v2{display:flex;align-items:center;gap:11px;text-decoration:none}.brand-v2 img{width:42px;height:42px;object-fit:contain}.brand-v2 strong,.brand-v2 small{display:block}.brand-v2 strong{font-size:15px;letter-spacing:-.02em}.brand-v2 small{font-size:11px;color:var(--muted);margin-top:2px}.nav-v2{display:flex;align-items:center;gap:5px}.nav-v2 a{padding:9px 11px;border-radius:10px;text-decoration:none;font-size:13px;font-weight:750;color:#43564e}.nav-v2 a:hover{background:var(--soft);color:var(--brand)}.nav-v2 a.primary{background:var(--brand);color:#fff;padding-inline:14px}.menu-btn-v2{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;width:42px;height:42px;cursor:pointer}.eyebrow{display:inline-block;color:var(--brand);font-size:11px;line-height:1.2;font-weight:850;text-transform:uppercase;letter-spacing:.09em}.meta{display:flex;align-items:center;flex-wrap:wrap;gap:7px;color:var(--muted);font-size:12px}.category{color:var(--brand);font-weight:800;text-decoration:none}.read-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:800;text-decoration:none}.read-link:hover{text-decoration:underline}.wrap-v2,.article-shell{width:min(calc(100% - 36px),var(--page));margin:auto}
.blog-hero-v2{background:linear-gradient(135deg,#f2f8f5 0%,#fff 62%,#fff5ee 100%);border-bottom:1px solid var(--line);padding:72px 0}.hero-grid-v2{width:min(calc(100% - 36px),var(--page));margin:auto;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(330px,.65fr);gap:70px;align-items:center}.blog-hero-v2 h1{max-width:760px;margin:13px 0 18px;font-size:clamp(42px,5.1vw,68px);line-height:1.03;letter-spacing:-.055em}.blog-hero-v2 p{max-width:720px;margin:0;color:#52665d;font-size:18px;line-height:1.72}.hero-links-v2{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}.hero-links-v2 a{padding:8px 11px;border:1px solid #d8e6df;background:rgba(255,255,255,.7);border-radius:999px;color:#365149;text-decoration:none;font-size:12px;font-weight:750}.hero-search-v2{padding:28px;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}.hero-search-v2 strong{font-size:18px}.hero-search-v2 p{margin:7px 0 18px;font-size:13px;line-height:1.6;color:var(--muted)}.search-v2{display:flex;gap:8px}.search-v2 input{min-width:0;flex:1;height:48px;padding:0 14px;border:1px solid #cfdcd6;border-radius:12px;outline:none}.search-v2 input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(11,107,79,.08)}.search-v2 button{border:0;border-radius:12px;background:var(--brand);color:#fff;padding:0 18px;font-weight:800;cursor:pointer}.categories-v2{display:flex;gap:8px;overflow-x:auto;padding:26px 0 18px;scrollbar-width:none}.categories-v2::-webkit-scrollbar{display:none}.chip{white-space:nowrap;padding:8px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:#53665f;background:#fff;font-size:12px;font-weight:750}.chip span{color:#94a19b}.chip.active,.chip:hover{color:var(--brand);border-color:#b9dbcd;background:var(--brand-soft)}
.featured-v2{display:grid;grid-template-columns:1.1fr .9fr;gap:0;margin:22px 0 56px;overflow:hidden;border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:0 20px 60px rgba(20,38,31,.06)}.featured-media-v2{min-height:430px;background:var(--soft)}.featured-media-v2 img{width:100%;height:100%;object-fit:cover}.featured-copy-v2{padding:44px;display:flex;flex-direction:column;justify-content:center}.featured-copy-v2 .meta{margin:13px 0}.featured-copy-v2 h2{margin:5px 0 14px;font-size:clamp(30px,3.3vw,46px);letter-spacing:-.04em;line-height:1.09}.featured-copy-v2 h2 a{text-decoration:none}.featured-copy-v2 p{color:var(--muted);font-size:15px}.featured-copy-v2 .read-link{margin-top:9px}.knowledge-strip{display:grid;grid-template-columns:320px 1fr;gap:34px;align-items:center;margin:0 0 60px;padding:28px 30px;background:#0f2620;color:#fff;border-radius:24px}.knowledge-strip h2{margin:6px 0 0;font-size:27px;letter-spacing:-.03em}.knowledge-strip .eyebrow{color:#82d7b6}.knowledge-links{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.knowledge-links a{padding:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:14px;text-decoration:none}.knowledge-links strong,.knowledge-links span{display:block}.knowledge-links strong{font-size:13px}.knowledge-links span{margin-top:4px;color:#b9ccc5;font-size:11px}.section-head-v2,.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:0 0 22px}.section-head-v2 h2,.section-head h2{margin:6px 0 0;font-size:34px;letter-spacing:-.035em}.section-head-v2 p,.section-head p{margin:4px 0 0;color:var(--muted);font-size:13px}.blog-layout-v2{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:34px;padding-bottom:80px}.post-grid-v2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.post-card-v2{overflow:hidden;border:1px solid var(--line);border-radius:20px;background:#fff;transition:transform .18s ease,box-shadow .18s ease}.post-card-v2:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(20,38,31,.08)}.post-thumb-v2{display:block;height:220px;background:var(--soft);overflow:hidden}.post-thumb-v2 img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}.post-card-v2:hover img{transform:scale(1.02)}.post-body-v2{padding:20px}.post-body-v2 h3{margin:8px 0 10px;font-size:20px;line-height:1.28;letter-spacing:-.025em}.post-body-v2 h3 a{text-decoration:none}.post-body-v2 p{margin:0;color:var(--muted);font-size:13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.post-card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:11px;color:#8a9892}.post-card-foot a{color:var(--brand);font-weight:800;text-decoration:none}.sidebar-v2{display:grid;align-content:start;gap:14px}.side-card-v2{padding:21px;background:#fff;border:1px solid var(--line);border-radius:18px}.side-card-v2 h3{margin:7px 0 14px;font-size:18px}.popular-v2{list-style:none;margin:0;padding:0}.popular-v2 li{display:flex;gap:12px;padding:13px 0;border-top:1px solid var(--line)}.popular-v2 li:first-child{border-top:0;padding-top:0}.popular-v2>li>span{font-size:18px;color:#b5c2bc;font-weight:700}.popular-v2 a{display:block;font-size:13px;font-weight:750;line-height:1.35;text-decoration:none}.popular-v2 a:hover{color:var(--brand)}.popular-v2 small{display:block;margin-top:4px;color:var(--muted);font-size:10px}.tool-links{display:grid;gap:4px}.tool-links a{display:flex;justify-content:space-between;gap:14px;padding:10px 0;border-top:1px solid var(--line);text-decoration:none;font-size:12px;font-weight:750}.tool-links a:first-child{border-top:0}.tool-links a:hover{color:var(--brand)}.pagination{display:flex;gap:7px;margin-top:30px}.pagination a,.pagination span{min-width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;text-decoration:none;font-size:12px;font-weight:800}.pagination .current{background:var(--brand);color:#fff;border-color:var(--brand)}.empty{padding:54px 30px;text-align:center;border:1px dashed #ccd9d3;border-radius:20px;background:var(--soft)}
.article-progress{position:fixed;left:0;top:0;z-index:120;width:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));transition:width .08s linear}.reader-toolbar{position:sticky;top:72px;z-index:60;background:rgba(250,252,251,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.reader-toolbar-in{width:min(calc(100% - 36px),var(--page));height:42px;margin:auto;display:flex;align-items:center;justify-content:flex-end;gap:5px;color:var(--muted);font-size:11px}.reader-toolbar-in>span:first-child{margin-right:4px}.reader-toolbar button{height:30px;padding:0 9px;border:1px solid var(--line);background:#fff;border-radius:8px;color:#465951;cursor:pointer;font-size:11px;font-weight:750}.reader-toolbar button:hover{border-color:#b6c9c0;color:var(--brand)}.reader-progress-text{min-width:35px;text-align:right;font-variant-numeric:tabular-nums}.breadcrumbs{display:flex;gap:7px;align-items:center;overflow:hidden;padding:24px 0;color:#82908a;font-size:11px;white-space:nowrap}.breadcrumbs a{color:#60746b;text-decoration:none}.breadcrumbs span:last-child{overflow:hidden;text-overflow:ellipsis}.article-grid-v2{display:grid;grid-template-columns:minmax(0,820px) minmax(250px,300px);gap:54px;align-items:start;padding-bottom:80px}.article-main{min-width:0}.article-head-v2{padding:18px 0 28px}.article-head-v2 h1{margin:14px 0 18px;font-size:clamp(40px,5vw,64px);line-height:1.05;letter-spacing:-.052em}.article-lede{margin:0;color:#51645c;font-size:19px;line-height:1.7}.article-keyline{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}.byline{display:flex;align-items:center;gap:11px}.byline strong,.byline span{display:block}.byline strong{font-size:12px}.byline span{margin-top:2px;color:var(--muted);font-size:10px}.author-avatar{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:var(--brand);color:#fff;font-weight:850}.author-avatar.big{width:56px;height:56px}.share{display:flex;gap:6px}.share button{border:1px solid var(--line);background:#fff;color:#53665f;padding:8px 10px;border-radius:9px;font-size:10px;font-weight:750;cursor:pointer}.cover-v2{margin:8px 0 32px}.cover-v2 img{width:100%;max-height:520px;object-fit:cover;border-radius:24px;border:1px solid var(--line);background:var(--soft)}.cover-v2 figcaption{margin-top:7px;color:#91a099;text-align:right;font-size:10px}.editorial-note{margin:0 0 28px;padding:16px 18px;border-left:3px solid var(--brand);background:var(--brand-soft);border-radius:0 12px 12px 0}.editorial-note strong{font-size:12px}.editorial-note p{margin:4px 0 0;color:#486158;font-size:12px}.reader-content,.article-body{max-width:var(--reader);font-family:Georgia,"Times New Roman","Noto Serif",serif;font-size:var(--reader-font);line-height:1.88;color:#1f312a}.reader-content p,.article-body p{margin:0 0 1.35em}.reader-content h2,.article-body h2{scroll-margin-top:135px;margin:2.2em 0 .72em;font-family:Inter,ui-sans-serif,sans-serif;font-size:1.66em;line-height:1.18;letter-spacing:-.035em;color:var(--ink)}.reader-content h3,.article-body h3{scroll-margin-top:135px;margin:1.8em 0 .65em;font-family:Inter,ui-sans-serif,sans-serif;font-size:1.28em;line-height:1.25;color:var(--ink)}.reader-content h4{margin:1.6em 0 .5em;font-family:Inter,sans-serif;font-size:1.05em}.reader-content a,.article-body a{color:#087156;text-decoration-thickness:1px;text-underline-offset:3px}.reader-content a.auto-internal-link{background:linear-gradient(transparent 72%,#d9f0e7 72%);font-weight:600;text-decoration:none}.reader-content ul,.reader-content ol,.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.35em}.reader-content li+li{margin-top:.42em}.reader-content blockquote{margin:1.8em 0;padding:8px 0 8px 22px;border-left:3px solid var(--brand);color:#496158;font-style:italic}.reader-content img{height:auto;margin:1.6em auto;border-radius:16px}.reader-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-family:Inter,sans-serif;font-size:.82em}.reader-content th,.reader-content td{padding:10px;border:1px solid #d9e4df;text-align:left}.reader-content th{background:var(--soft)}.reader-content code{padding:2px 5px;border-radius:5px;background:#f0f3f2;font-size:.85em}.reader-content .vsh-callout{margin:1.6em 0;padding:18px 20px;background:#f3f8f5;border:1px solid #d8e9e1;border-radius:16px;font-family:Inter,sans-serif;font-size:.9em}.article-side-v2{min-width:0}.sticky-v2{position:sticky;top:132px;display:grid;gap:12px}.toc-v2,.side-card-v2{background:#fff;border:1px solid var(--line);border-radius:17px;padding:18px}.side-title{display:flex;justify-content:space-between;gap:8px;align-items:center}.side-title span{font-size:12px;font-weight:850}.side-title small{color:var(--muted);font-size:9px}.toc-v2 ol{list-style:none;margin:12px 0 0;padding:0}.toc-v2 li{margin:0}.toc-v2 a{display:block;padding:7px 9px;border-left:2px solid #e7edea;color:#6a7b74;text-decoration:none;font-size:11px;line-height:1.35}.toc-v2 li.h3 a{padding-left:16px}.toc-v2 a.active{border-left-color:var(--brand);background:var(--brand-soft);color:var(--brand);font-weight:800}.references{margin-top:42px;padding-top:24px;border-top:1px solid var(--line)}.references>h2{font-size:23px}.tags{display:flex;flex-wrap:wrap;gap:7px;margin:28px 0}.tag{padding:7px 10px;border:1px solid var(--line);background:var(--soft);border-radius:999px;color:#5e7168;text-decoration:none;font-size:11px}.author-box{display:flex;gap:16px;align-items:center;margin:36px 0;padding:24px;border:1px solid var(--line);border-radius:19px;background:#fbfdfc}.author-box h2{margin:4px 0 2px;font-size:19px}.author-box p{margin:0;color:var(--muted);font-size:11px}.related-v2{margin-top:44px}.related-grid-v2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.related-card{display:flex;flex-direction:column;min-height:145px;padding:18px;border:1px solid var(--line);border-radius:16px;text-decoration:none;background:#fff}.related-card:hover{border-color:#b9d5c8;box-shadow:0 12px 30px rgba(20,38,31,.05)}.related-card strong{margin:8px 0;font-size:14px;line-height:1.35}.related-card small{margin-top:auto;color:var(--muted);font-size:10px}.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:28px}.post-nav a{padding:18px;border:1px solid var(--line);border-radius:15px;text-decoration:none}.post-nav a.next{text-align:right}.post-nav span,.post-nav strong{display:block}.post-nav span{color:var(--muted);font-size:10px}.post-nav strong{margin-top:5px;font-size:12px}.vsh-ad-zone{margin:36px 0;padding:14px;border:1px solid #e5e9e7;background:#fafbfb;border-radius:18px;overflow:hidden}.vsh-ad-label{margin:0 0 8px;color:#8d9994;text-align:center;font-size:9px;letter-spacing:.08em;text-transform:uppercase}.focus-mode [data-reader-side],.focus-mode .breadcrumbs{display:none}.focus-mode .article-grid-v2{display:block}.focus-mode .article-main{max-width:880px;margin:auto}.reader-wide{--reader:880px}.reader-large{--reader-font:20px}.reader-small{--reader-font:16px}
.footer-v2{margin-top:40px;background:#10241e;color:#d6e1dc}.footer-grid-v2{width:min(calc(100% - 36px),var(--page));margin:auto;padding:48px 0 38px;display:grid;grid-template-columns:1.5fr .8fr .9fr;gap:54px}.footer-grid-v2>div>strong{display:block;margin-bottom:12px;color:#fff;font-size:12px}.footer-grid-v2 a{display:block;margin:8px 0;color:#b8c9c2;text-decoration:none;font-size:11px}.footer-grid-v2 a:hover{color:#fff}.footer-grid-v2 p{max-width:520px;color:#9fb2aa;font-size:11px}.footer-brand{display:flex!important;align-items:center;gap:10px;margin:0!important}.footer-brand img{width:40px;height:40px;object-fit:contain}.footer-brand strong,.footer-brand span{display:block}.footer-brand strong{font-size:14px}.footer-brand span{font-size:9px;color:#96aaa1}.footer-bottom-v2{width:min(calc(100% - 36px),var(--page));margin:auto;padding:15px 0 22px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:20px;color:#8fa29a;font-size:10px}.footer-bottom-v2 div{display:flex;gap:14px}.footer-bottom-v2 a{color:#aabbb4;text-decoration:none}
@media(max-width:980px){.nav-v2{display:none;position:absolute;left:18px;right:18px;top:64px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-v2.open{display:flex}.menu-btn-v2{display:block}.hero-grid-v2,.featured-v2,.article-grid-v2,.blog-layout-v2{grid-template-columns:1fr}.blog-hero-v2{padding:52px 0}.featured-media-v2{min-height:330px}.knowledge-strip{grid-template-columns:1fr}.article-side-v2{display:none}.reader-content,.article-body{max-width:820px}.post-grid-v2{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid-v2{grid-template-columns:1fr 1fr}.footer-grid-v2>div:first-child{grid-column:1/-1}}
@media(max-width:680px){.top-inner-v2{height:64px}.brand-v2 small{display:none}.reader-toolbar{top:64px}.reader-toolbar-in>span:first-child{display:none}.blog-hero-v2 h1{font-size:40px}.blog-hero-v2 p{font-size:15px}.hero-grid-v2{gap:30px}.hero-search-v2{padding:20px}.featured-v2{margin-bottom:38px}.featured-media-v2{min-height:230px}.featured-copy-v2{padding:24px}.featured-copy-v2 h2{font-size:30px}.knowledge-links{grid-template-columns:1fr 1fr}.post-grid-v2,.related-grid-v2{grid-template-columns:1fr}.post-thumb-v2{height:220px}.article-head-v2 h1{font-size:39px}.article-lede{font-size:16px}.article-keyline{align-items:flex-start;flex-direction:column}.cover-v2 img{border-radius:17px}.reader-content,.article-body{font-size:17px;line-height:1.78}.post-nav{grid-template-columns:1fr}.post-nav a.next{text-align:left}.footer-grid-v2{grid-template-columns:1fr;gap:26px}.footer-grid-v2>div:first-child{grid-column:auto}.footer-bottom-v2{flex-direction:column}.section-head-v2{align-items:flex-start;flex-direction:column}.search-v2{flex-direction:column}.search-v2 button{height:44px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}