.ech .bl-wrap{max-width:1200px;margin:0 auto;padding:0 var(--hx)}.ech .bl-hero{position:relative;background:var(--sky);padding-top:88px;overflow:hidden}.ech .bl-hero-art{position:absolute;left:0;right:0;bottom:0;height:210px;-webkit-mask-image:linear-gradient(180deg,transparent 0,#000 60px);mask-image:linear-gradient(180deg,transparent 0,#000 60px);pointer-events:none}.ech .bl-hero-art img{position:absolute;left:-4.1%;top:0;width:108.2%;height:100%;object-fit:cover;object-position:50% 80%}.ech .bl-hero-in{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:40px var(--hx) 230px}.ech .bl-hero h1{font-size:64px;line-height:1;font-weight:800;letter-spacing:-.026em;max-width:820px}.ech .bl-hero h1 span{color:var(--brand-deep)}.ech .bl-hero .bl-sub{margin-top:18px;max-width:640px;font-size:20px;line-height:1.45;font-weight:500;color:var(--ink-2)}.ech .bl-tools{margin-top:28px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}.ech .bl-search{position:relative;flex:0 1 360px}.ech .bl-search svg{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:var(--muted)}.ech .bl-search input{width:100%;height:50px;padding:0 18px 0 46px;border:0;border-radius:999px;background:rgba(255,253,248,.92);box-shadow:0 3px 0 rgba(42,36,68,.1);font:500 16px var(--ff-b);color:var(--ink);outline:none}.ech .bl-search input::placeholder{color:var(--muted)}.ech .bl-search input:focus-visible{box-shadow:0 0 0 3px var(--brand-deep)}.ech .bl-chips{display:flex;flex-wrap:wrap;gap:8px}.ech .bl-chip{height:44px;padding:0 18px;border:0;border-radius:999px;background:rgba(255,253,248,.55);color:var(--ink);font:600 15px var(--ff-b);cursor:pointer}.ech .bl-chip:hover{background:rgba(255,253,248,.85)}.ech .bl-chip[aria-pressed=true]{background:var(--ink);color:#fff}.ech .bl-chip:focus-visible,.ech .bl-page:focus-visible{outline:3px solid var(--brand-deep);outline-offset:2px}.ech .bl-list{position:relative;z-index:2;margin-top:-130px;padding-bottom:72px}.ech .bl-feature{display:grid;grid-template-columns:1.15fr 1fr;align-items:stretch;background:var(--paper);border-radius:36px;overflow:hidden;box-shadow:0 1px 0 rgba(42,36,68,.06),0 24px 60px rgba(42,36,68,.1)}.ech .bl-feature .bl-img{min-height:380px}.ech .bl-feature-txt{padding:44px 48px;display:flex;flex-direction:column;justify-content:center}.ech .bl-feature h2{margin-top:12px;font-size:40px;line-height:1.05;font-weight:800;letter-spacing:-.02em}.ech .bl-feature p{margin-top:14px;font-size:18px;line-height:1.5;color:var(--ink-2)}.ech .bl-feature .bl-meta{margin-top:22px}.ech .bl-grid{margin-top:28px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.ech .bl-card{display:flex;flex-direction:column;background:var(--paper);border-radius:28px;overflow:hidden;box-shadow:0 1px 0 rgba(42,36,68,.06),0 10px 30px rgba(42,36,68,.06)}.ech .bl-card .bl-img{aspect-ratio:16/10}.ech .bl-card-txt{flex:1;display:flex;flex-direction:column;padding:22px 24px 24px}.ech .bl-card h2,.ech .bl-card h3{margin-top:8px;font-family:var(--ff-d);font-size:23px;line-height:1.15;font-weight:700;letter-spacing:-.01em}.ech .bl-card p{margin-top:10px;font-size:15.5px;line-height:1.5;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.ech .bl-card .bl-meta{margin-top:auto;padding-top:18px}@media (prefers-reduced-motion:no-preference){.ech .bl-card,.ech .bl-feature{transition:transform .18s ease,box-shadow .18s ease}.ech .bl-card:hover,.ech .bl-feature:hover{transform:translateY(-3px)}.ech .bl-img img{transition:transform .4s ease}.ech .bl-card:hover .bl-img img,.ech .bl-feature:hover .bl-img img{transform:scale(1.03)}}.ech .bl-card:hover h2,.ech .bl-card:hover h3,.ech .bl-feature:hover h2{color:var(--brand-deep)}.ech .bl-card:focus-visible,.ech .bl-feature:focus-visible{outline:3px solid var(--brand-deep);outline-offset:3px;border-radius:28px}.ech .bl-img{position:relative;overflow:hidden;background:var(--lav)}.ech .bl-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.ech .bl-img.art img{object-position:var(--pos,50% 80%);transform:scale(1.14)}.ech .bl-card:hover .bl-img.art img,.ech .bl-feature:hover .bl-img.art img{transform:scale(1.17)}.ech .bl-topic{font-size:14px;font-weight:700;color:var(--brand-deep)}.ech .bl-meta{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:14px;font-weight:500;color:var(--muted)}.ech .bl-empty{margin-top:28px;padding:64px 24px;text-align:center;background:var(--paper);border-radius:28px;font-size:18px;color:var(--ink-2)}.ech .bl-pages{margin-top:44px;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px}.ech .bl-page{min-width:46px;height:46px;padding:0 16px;border:0;border-radius:999px;background:var(--paper);color:var(--ink);font:700 16px var(--ff-d);cursor:pointer;box-shadow:0 2px 0 rgba(42,36,68,.08)}.ech .bl-page[aria-current=page]{background:var(--ink);color:#fff}.ech .bl-page:disabled{opacity:.4;cursor:default}.ech .bl-archive{padding-top:8px}.ech .bl-archive>h2{font-size:36px;line-height:1.05;font-weight:800;letter-spacing:-.02em}.ech .bl-archive-cols{margin-top:24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:28px 36px;padding:32px 36px;background:var(--paper);border-radius:32px}.ech .bl-archive h3{font-family:var(--ff-d);font-size:19px;font-weight:700;color:var(--brand-deep)}.ech .bl-archive ul{margin-top:10px}.ech .bl-archive li{padding:6px 0;font-size:15.5px;line-height:1.4;font-weight:500;color:var(--ink-2)}.ech .bl-archive a:hover{color:var(--brand-deep);text-decoration:underline}@media (max-width:767px){.ech .bl-archive>h2{font-size:28px}.ech .bl-archive-cols{padding:24px 22px;border-radius:24px}}.ech .bl-crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:15px;font-weight:600;color:var(--ink-2)}.ech .bl-crumbs a:hover{color:var(--brand-deep)}.ech .bl-crumbs span[aria-hidden]{opacity:.5}.ech .bl-ahero .bl-hero-in{padding-bottom:220px}.ech .bl-ahero.no-cover .bl-hero-in{padding-bottom:190px}.ech .bl-ahero h1{margin-top:18px;font-size:58px;line-height:1.02;max-width:900px}.ech .bl-ahero .bl-sub{max-width:760px;font-size:21px}.ech .bl-byline{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;font-size:15px;font-weight:500;color:var(--ink-2)}.ech .bl-author{display:flex;align-items:center;gap:12px}.ech .bl-avatar{width:44px;height:44px;border-radius:50%;background:var(--paper);color:var(--brand-deep);display:flex;align-items:center;justify-content:center;font:800 16px var(--ff-d);flex:none}.ech .bl-author b{display:block;color:var(--ink);font-weight:700}.ech .bl-author small{display:block;font-size:13.5px;color:var(--ink-2)}.ech .bl-cover{position:relative;z-index:2;max-width:1040px;margin:-150px auto 0;padding:0 var(--hx)}.ech .bl-cover .bl-img{aspect-ratio:16/8;border-radius:32px;box-shadow:0 24px 60px rgba(42,36,68,.16)}.ech .bl-article{max-width:1200px;margin:0 auto;padding:56px var(--hx) 24px;display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:64px;align-items:start}.ech .bl-article.no-toc{grid-template-columns:minmax(0,760px);justify-content:center}.ech .bl-main{min-width:0;max-width:760px}.ech .bl-toc{position:sticky;top:28px;padding:22px 22px 18px;background:var(--paper);border-radius:24px;font-size:14.5px}.ech .bl-toc b{display:block;font:700 15px var(--ff-d);margin-bottom:8px}.ech .bl-toc a{display:block;padding:6px 0;line-height:1.35;color:var(--ink-2);font-weight:500}.ech .bl-toc a:hover{color:var(--brand-deep)}.ech .bl-prose{font-size:19px;line-height:1.7;color:var(--ink-2)}.ech .bl-prose .bl-db>*+*,.ech .bl-prose>*+*{margin-top:1.05em}.ech .bl-prose .bl-db>h2{margin-top:2.1em}.ech .bl-prose .bl-db>h3{margin-top:1.7em}.ech .bl-prose .bl-db>h2:first-child,.ech .bl-prose .bl-db>h3:first-child{margin-top:0}.ech .bl-prose .bl-db>h2+*,.ech .bl-prose .bl-db>h3+*{margin-top:.6em}.ech .bl-prose h2{margin-top:2.1em;font-size:34px;line-height:1.12;font-weight:800;letter-spacing:-.018em}.ech .bl-prose h2,.ech .bl-prose h3{font-family:var(--ff-d);color:var(--ink);scroll-margin-top:24px}.ech .bl-prose h3{margin-top:1.7em;font-size:24px;line-height:1.2;font-weight:700}.ech .bl-prose h4{margin-top:1.4em;font-size:19px;font-weight:700;color:var(--ink)}.ech .bl-prose h2+*,.ech .bl-prose h3+*,.ech .bl-prose h4+*{margin-top:.6em}.ech .bl-prose b,.ech .bl-prose strong{color:var(--ink);font-weight:700}.ech .bl-prose a{color:var(--brand-deep);font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:3px}.ech .bl-prose a:hover{color:var(--ink)}.ech .bl-prose ol,.ech .bl-prose ul{padding-left:1.3em}.ech .bl-prose ul{list-style:disc}.ech .bl-prose ol{list-style:decimal}.ech .bl-prose li+li{margin-top:.45em}.ech .bl-prose li::marker{color:var(--brand);font-weight:700}.ech .bl-prose blockquote{padding:26px 30px;background:var(--lav);border-radius:24px;font-family:var(--ff-d);font-size:24px;line-height:1.3;font-weight:600;color:var(--ink)}.ech .bl-prose blockquote p+p{margin-top:.6em}.ech .bl-prose img{max-width:100%;height:auto;border-radius:20px}.ech .bl-prose figure figcaption{margin-top:10px;font-size:14.5px;color:var(--muted)}.ech .bl-prose hr{border:0;height:1px;background:rgba(42,36,68,.12);margin:2.2em 0}.ech .bl-prose code{padding:2px 6px;border-radius:6px;background:var(--lav);font-size:.88em}.ech .bl-prose table{width:100%;border-collapse:collapse;font-size:16px;line-height:1.45}.ech .bl-prose .bl-table{overflow-x:auto;background:var(--paper);border-radius:20px;padding:6px 4px}.ech .bl-prose th{text-align:left;font-family:var(--ff-d);font-weight:700;color:var(--ink);padding:12px 16px;border-bottom:2px solid rgba(42,36,68,.12)}.ech .bl-prose td{padding:12px 16px;border-bottom:1px solid rgba(42,36,68,.08);vertical-align:top}.ech .bl-prose tr:last-child td{border-bottom:0}.ech .bl-prose .bl-lede{font-size:22px;line-height:1.55;color:var(--ink);font-weight:500}.ech .bl-prose .bl-callout{padding:22px 26px;border-radius:22px;background:var(--paper);font-size:17.5px;line-height:1.6}.ech .bl-prose .bl-callout.tip{background:var(--sage-soft)}.ech .bl-prose .bl-callout.note{background:var(--lav)}.ech .bl-prose .bl-callout.warn{background:var(--mustard-soft)}.ech .bl-prose .bl-callout>b:first-child{display:block;margin-bottom:4px;font-family:var(--ff-d);font-size:19px;color:var(--ink)}.ech .bl-prose .bl-callout>*+*{margin-top:.6em}.ech .bl-prose .bl-takeaways{padding:28px 30px;background:var(--paper);border-radius:26px}.ech .bl-prose .bl-takeaways h2{margin:0 0 12px;font-size:24px}.ech .bl-prose .bl-takeaways ul{list-style:none;padding:0}.ech .bl-prose .bl-takeaways li{position:relative;padding-left:32px;font-size:17.5px;line-height:1.55}.ech .bl-prose .bl-takeaways li:before{content:"";position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:50%;background:var(--brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' stroke='white' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center /14px no-repeat}.ech .bl-prose .bl-steps{list-style:none;padding:0;counter-reset:bl-step}.ech .bl-prose .bl-steps>li{position:relative;padding:22px 24px 22px 76px;background:var(--paper);border-radius:22px;counter-increment:bl-step}.ech .bl-prose .bl-steps>li+li{margin-top:12px}.ech .bl-prose .bl-steps>li:before{content:counter(bl-step);position:absolute;left:22px;top:20px;width:38px;height:38px;border-radius:50%;background:var(--brand);color:#fff;font:800 18px var(--ff-d);display:flex;align-items:center;justify-content:center}.ech .bl-prose .bl-steps>li::marker{content:none}.ech .bl-prose .bl-steps h3{margin:4px 0 6px;font-size:21px}.ech .bl-prose .bl-steps ol,.ech .bl-prose .bl-steps p,.ech .bl-prose .bl-steps ul{font-size:17.5px;line-height:1.6}.ech .bl-prose .bl-steps li li{margin-top:.35em}.ech .bl-prose .bl-steps p+p{margin-top:.6em}.ech .bl-prose .bl-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}.ech .bl-prose .bl-stat{padding:22px 22px 20px;background:var(--paper);border-radius:22px}.ech .bl-prose .bl-stat b{display:block;font:800 40px/1 var(--ff-d);letter-spacing:-.02em;color:var(--brand-deep)}.ech .bl-prose .bl-stat span{display:block;margin-top:8px;font-size:15px;line-height:1.45}.ech .bl-prose .bl-stat small{display:block;margin-top:6px;font-size:13px;color:var(--muted)}.ech .bl-prose .bl-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}.ech .bl-prose .bl-mini{padding:22px 24px;background:var(--paper);border-radius:22px;font-size:16.5px;line-height:1.55}.ech .bl-prose .bl-mini h3{margin:0 0 6px;font-size:20px}.ech .bl-prose .bl-mini>*+*{margin-top:.5em}.ech .bl-prose .bl-faq details{background:var(--paper);border-radius:20px;padding:0 24px}.ech .bl-prose .bl-faq details+details{margin-top:10px}.ech .bl-prose .bl-faq summary{list-style:none;cursor:pointer;padding:20px 36px 20px 0;position:relative;font-family:var(--ff-d);font-size:19px;font-weight:700;color:var(--ink)}.ech .bl-prose .bl-faq summary::-webkit-details-marker{display:none}.ech .bl-prose .bl-faq summary:after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:26px;font-weight:500;color:var(--brand-deep)}.ech .bl-prose .bl-faq details[open] summary:after{content:"\2212"}.ech .bl-prose .bl-faq .bl-faq-a{padding-bottom:20px;font-size:17px;line-height:1.6}.ech .bl-prose .bl-faq .bl-faq-a>*+*{margin-top:.6em}.ech .bl-prose .bl-faq summary:focus-visible{outline:3px solid var(--brand-deep);outline-offset:4px;border-radius:8px}.ech .bl-prose .bl-check{list-style:none;padding:0}.ech .bl-prose .bl-check li{position:relative;padding-left:34px}.ech .bl-prose .bl-check li:before{content:"";position:absolute;left:0;top:.3em;width:20px;height:20px;border-radius:6px;border:2px solid var(--brand)}.ech .bl-cta{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px 28px;padding:30px 32px;background:var(--sky);border-radius:28px}.ech .bl-prose .bl-cta{margin-top:1.8em;margin-bottom:.6em}.ech .bl-cta h2,.ech .bl-cta h3,.ech .bl-prose .bl-cta h2,.ech .bl-prose .bl-cta h3{margin:0;font-family:var(--ff-d);font-size:26px;line-height:1.15;font-weight:800;color:var(--ink)}.ech .bl-cta p{margin-top:6px;font-size:16.5px;line-height:1.5;color:var(--ink-2)}.ech .bl-cta .btn,.ech .bl-prose .bl-cta .btn{height:52px;font-size:17px;text-decoration:none;color:#fff;white-space:nowrap}.ech .bl-after{max-width:760px;margin:48px auto 0;padding:0 var(--hx);box-sizing:content-box}.ech .bl-share{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:26px;border-top:1px solid rgba(42,36,68,.12);font-size:15px;font-weight:600}.ech .bl-share>span{margin-right:6px;color:var(--ink-2)}.ech .bl-share a,.ech .bl-share button{height:40px;padding:0 16px;display:inline-flex;align-items:center;gap:8px;border:0;border-radius:999px;background:var(--paper);color:var(--ink);font:600 14.5px var(--ff-b);cursor:pointer}.ech .bl-share a:hover,.ech .bl-share button:hover{background:var(--lav)}.ech .bl-share a:focus-visible,.ech .bl-share button:focus-visible{outline:3px solid var(--brand-deep);outline-offset:2px}.ech .bl-bio{margin-top:28px;display:flex;gap:18px;padding:26px 28px;background:var(--paper);border-radius:26px}.ech .bl-bio .bl-avatar{width:56px;height:56px;background:var(--lav);font-size:20px}.ech .bl-bio b{display:block;font:700 19px var(--ff-d);color:var(--ink)}.ech .bl-bio p{margin-top:6px;font-size:16px;line-height:1.55;color:var(--ink-2)}.ech .bl-bio a{color:var(--brand-deep);font-weight:600}.ech .bl-related{max-width:1200px;margin:72px auto 0;padding:0 var(--hx)}.ech .bl-related>h2{font-size:36px;line-height:1.05;font-weight:800;letter-spacing:-.02em}.ech .bl-related .bl-grid{margin-top:22px}.ech .bl-close{margin-top:72px}@media (max-width:1100px){.ech .bl-article{grid-template-columns:minmax(0,760px);justify-content:center}.ech .bl-toc{display:none}.ech .bl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:1023px){.ech .bl-hero h1{font-size:52px}.ech .bl-ahero h1{font-size:46px}.ech .bl-feature{grid-template-columns:1fr}.ech .bl-feature .bl-img{min-height:0;aspect-ratio:16/9}}@media (max-width:767px){.ech .bl-hero{padding-top:68px}.ech .bl-hero-in{padding:24px var(--hx) 170px}.ech .bl-hero-art{height:140px}.ech .bl-hero h1{font-size:38px}.ech .bl-hero .bl-sub{font-size:17px}.ech .bl-ahero .bl-hero-in,.ech .bl-ahero.no-cover .bl-hero-in{padding-bottom:150px}.ech .bl-ahero h1{font-size:34px;margin-top:12px}.ech .bl-ahero .bl-sub{font-size:17.5px}.ech .bl-search{flex:1 1 100%}.ech .bl-chips{flex-wrap:nowrap;overflow-x:auto;margin:0 calc(var(--hx) * -1);padding:2px var(--hx);scrollbar-width:none}.ech .bl-chip{flex:none}.ech .bl-list{margin-top:-90px}.ech .bl-grid{grid-template-columns:1fr;gap:16px}.ech .bl-feature{border-radius:28px}.ech .bl-feature-txt{padding:24px 22px 26px}.ech .bl-feature h2{font-size:28px}.ech .bl-cover{margin-top:-100px}.ech .bl-cover .bl-img{aspect-ratio:16/10;border-radius:22px}.ech .bl-article{padding-top:32px}.ech .bl-prose{font-size:17.5px}.ech .bl-prose h2{font-size:27px}.ech .bl-prose h3{font-size:21px}.ech .bl-prose blockquote{font-size:20px;padding:20px 22px}.ech .bl-prose .bl-steps>li{padding:64px 20px 20px}.ech .bl-prose .bl-steps>li:before{left:20px;top:18px}.ech .bl-cta{grid-template-columns:1fr;padding:24px 22px}.ech .bl-related>h2{font-size:28px}.ech .bl-bio{flex-direction:column}}