html,body.fpv-body{height:auto;overflow-x:hidden;overflow-y:auto}.fpv-main{display:block}.fpv-inner{max-width:72rem;margin:0 auto;padding:0 1.5rem}.fpv-header{max-width:42rem;margin:0 auto;text-align:center}.fpv-section{padding:4rem 0;position:relative}[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity 0.8s var(--pc-ease),transform 0.8s var(--pc-ease)}[data-reveal].is-visible{opacity:1;transform:translateY(0)}.fpv-hero{position:relative;min-height:46vh;min-height:46svh;display:flex;align-items:center;justify-content:center;padding:9rem 1.5rem 2.5rem;text-align:center}.fpv-hero__content{position:relative;z-index:2;max-width:46rem}.fpv-hero__content .copy{margin-left:auto;margin-right:auto}.breadcrumb{max-width:72rem;margin:2.5rem auto;padding:0 1.5rem;display:flex;flex-wrap:wrap;align-items:center;gap:0.4rem;list-style:none;font-size:0.85rem;color:var(--pc-ink-soft)}.breadcrumb li{display:flex;align-items:center;gap:0.4rem}.breadcrumb a{color:var(--pc-ink-soft);text-decoration:none;font-weight:600}.breadcrumb a:hover{color:var(--pc-baby-blue-deep)}.breadcrumb li:last-child{color:var(--pc-ink);font-weight:600}.breadcrumb li:last-child a{color:var(--pc-ink);pointer-events:none}.breadcrumb .breadcrumb__sep{color:var(--pc-ink-soft);opacity:0.5}:root{--pl-blue:#4169e1;--pl-blue-dark:#2447b8;--pl-blue-soft:#eef3ff;--pl-blue-pale:#f7f9ff;--pl-muted:#5d6472;--pl-border:#dfe5f2;--pl-shadow:0 18px 50px rgba(31,52,102,0.10);--pl-radius-lg:28px;--pl-radius-md:18px;--pl-radius-sm:12px;--pl-reading:760px}.pl-controls{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1rem;align-items:center;padding:1.1rem;border:1px solid var(--pl-border);border-radius:var(--pl-radius-md);background:rgba(255,255,255,0.9);box-shadow:var(--pl-shadow);margin-bottom:1.5rem}.pl-search{display:flex;align-items:center;gap:0.75rem;min-width:0;padding:0 1rem;border:1px solid var(--pl-border);border-radius:999px;background:#fff}.pl-search svg{width:20px;min-width:20px;height:20px;color:#798092}.pl-search input{width:100%;height:50px;border:0;outline:0;background:transparent;color:var(--pc-ink);font:inherit;font-size:15px}.pl-search input::placeholder{color:#8a91a0}.pl-categories{display:flex;flex-wrap:wrap;gap:0.5rem;justify-content:flex-end}.pl-filter{min-height:42px;padding:0.55rem 0.9rem;border:1px solid var(--pl-border);border-radius:999px;background:#fff;color:#4c5362;font:inherit;font-size:13px;font-weight:700;cursor:pointer}.pl-filter.is-active,.pl-filter:hover{border-color:var(--pl-blue);background:var(--pl-blue);color:#fff}.pl-controls-wrap{padding-bottom:1.5rem}.pl-featured-wrap{padding-bottom:4rem}.pl-section{padding-bottom:4rem}.pl-featured{display:grid;grid-template-columns:1.08fr 0.92fr;overflow:hidden;border:1px solid var(--pl-border);border-radius:var(--pl-radius-lg);background:#fff;box-shadow:var(--pl-shadow)}.pl-featured-media{position:relative;min-height:380px;overflow:hidden;background-color:var(--pl-blue-soft);background-image:linear-gradient(135deg,rgba(65,105,225,.12),rgba(65,105,225,.03))}.pl-featured-media img,.pl-card-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.pl-featured-content{display:flex;flex-direction:column;justify-content:center;padding:2.75rem}.pl-meta{display:flex;flex-wrap:wrap;gap:0.5rem 0.9rem;margin:0 0 1.1rem;color:#6b7280;font-size:13px;font-weight:600}.pl-badge{display:inline-flex;width:fit-content;margin:0 0 1rem;padding:0.5rem 0.75rem;border-radius:999px;background:var(--pl-blue-soft);color:var(--pl-blue-dark);font-size:12px;font-weight:800;letter-spacing:0.08em;text-transform:uppercase}.pl-featured h2{margin:0 0 1.1rem;font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.15;letter-spacing:-0.03em}.pl-featured p{margin:0 0 1.5rem;color:var(--pl-muted);font-size:16px;line-height:1.7}.pl-read-link{display:inline-flex;width:fit-content;align-items:center;gap:0.5rem;color:var(--pc-badge-text);font-size:15px;font-weight:800;text-decoration:none}.pl-read-link:after{content:"→";transition:transform 0.2s ease}.pl-read-link:hover:after{transform:translateX(4px)}.pl-section-head{display:flex;justify-content:space-between;gap:1.5rem;align-items:flex-end;margin-bottom:1.75rem}.pl-section-head h2{margin:0;font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.16;letter-spacing:-0.03em}.pl-section-head p{max-width:32rem;margin:0;color:var(--pl-muted);font-size:15px;line-height:1.65}.pl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.4rem}.pl-card{display:flex;flex-direction:column;min-width:0;overflow:hidden;border:1px solid var(--pl-border);border-radius:var(--pl-radius-md);background:#fff;box-shadow:0 12px 34px rgba(31,52,102,.07);transition:transform 0.2s ease,box-shadow 0.2s ease,border-color 0.2s ease}.pl-card:hover{transform:translateY(-4px);border-color:#bdcaf0;box-shadow:0 18px 44px rgba(31,52,102,.12)}.pl-card-media{position:relative;min-height:190px;background:linear-gradient(135deg,#eef3ff,#dfe8ff);background-size:cover;background-position:center;overflow:hidden}.pl-card-media:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(17,25,46,.08))}.pl-card-body{display:flex;flex:1;flex-direction:column;padding:1.4rem}.pl-card h3{margin:0 0 0.75rem;font-size:20px;font-weight:700;line-height:1.3;letter-spacing:-0.02em}.pl-card p{margin:0 0 1.2rem;color:var(--pl-muted);font-size:15px;line-height:1.65}.pl-card .pl-read-link{margin-top:auto}.pl-empty{display:none;padding:2.4rem;border:1px dashed #cfd8eb;border-radius:var(--pl-radius-md);background:var(--pl-blue-pale);color:var(--pl-muted);text-align:center}.pl-empty.is-visible{display:block}.pl-pagination{display:flex;justify-content:center;gap:0.5rem;margin-top:2rem}.pl-page-btn{display:grid;width:44px;height:44px;place-items:center;border:1px solid var(--pl-border);border-radius:50%;background:#fff;color:#4d5564;font-size:14px;font-weight:700;text-decoration:none}.pl-page-btn.is-active,.pl-page-btn:hover{border-color:var(--pl-blue);background:var(--pl-blue);color:#fff}.pl-newsletter,.pl-cta{padding:2.6rem;border-radius:var(--pl-radius-lg);color:#fff;box-shadow:0 22px 60px rgba(36,71,184,.25);background:radial-gradient(circle at top right,rgba(255,255,255,.22),transparent 15rem),linear-gradient(135deg,#2447b8,#4169e1)}.pl-cta{margin-top:0;box-shadow:0 22px 60px rgba(64,183,255,.35);background:radial-gradient(circle at top right,rgba(255,255,255,.22),transparent 15rem),linear-gradient(135deg,#40b7ff,#8fdcff)}.pl-newsletter h2,.pl-cta h2{max-width:44rem;margin:0 0 0.9rem;color:#fff;font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.16;letter-spacing:-0.03em}.pl-newsletter p,.pl-cta p{max-width:44rem;margin:0;color:rgba(255,255,255,.9);font-size:16px;line-height:1.7}.pl-newsletter-actions,.pl-cta-actions{display:flex;flex-wrap:wrap;gap:0.75rem;margin-top:1.5rem}.pl-button{display:inline-flex;min-height:50px;align-items:center;justify-content:center;padding:0.8rem 1.4rem;border:1px solid rgba(255,255,255,.42);border-radius:999px;background:transparent;color:#fff;font-size:15px;font-weight:700;text-decoration:none;transition:transform 0.18s ease,background 0.18s ease,color 0.18s ease}.pl-button:hover{transform:translateY(-2px);background:#fff;color:var(--pl-blue-dark)}.pl-button-primary{background:#fff;color:var(--pl-blue-dark)}.pl-button-primary:hover{background:#f4f6ff}.pl-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:3.25rem;align-items:start;padding-top:3rem;padding-bottom:5rem}.pl-content{min-width:0}.pl-intro-card{margin-bottom:3rem;padding:2rem;border:1px solid var(--pl-border);border-radius:var(--pl-radius-lg);background:rgba(255,255,255,.92);box-shadow:var(--pl-shadow)}.pl-intro-card p{max-width:var(--pl-reading)}.pl-intro-card p:last-child{margin-bottom:0}.pl-article-section{scroll-margin-top:6.5rem;margin-top:4rem}.pl-article-section:first-of-type{margin-top:0}.pl-kicker{margin:0 0 0.6rem;color:var(--pl-blue);font-size:13px;font-weight:800;letter-spacing:0.12em;text-transform:uppercase}.pl-article-section h2{margin:0 0 1.3rem;font-size:clamp(26px,3.4vw,38px);line-height:1.18;letter-spacing:-0.03em}.pl-article-section h3{margin:2rem 0 0.85rem;font-size:clamp(19px,2.2vw,24px);line-height:1.3;letter-spacing:-0.015em}.pl-article-section p{max-width:var(--pl-reading);margin:0 0 1.2rem;color:#343a47;font-size:17px;line-height:1.75}.pl-article-section ul,.pl-article-section ol{max-width:var(--pl-reading);margin:1.3rem 0 1.6rem;padding-left:1.4rem}.pl-article-section li{margin-bottom:0.6rem;color:#343a47;font-size:17px}.pl-article-section li::marker{color:var(--pl-blue);font-weight:800}.pl-callout{max-width:var(--pl-reading);margin:2rem 0;padding:1.75rem;border:1px solid #d8e1fb;border-radius:var(--pl-radius-md);background:linear-gradient(135deg,#f7f9ff,#eef3ff)}.pl-callout h3{margin-top:0}.pl-callout p:last-child{margin-bottom:0}.pl-figure{margin:2rem 0 2.25rem}.pl-figure img{width:100%;height:auto;border-radius:var(--pl-radius-md);display:block;border:1px solid #eef1f7}.pl-figure figcaption{margin-top:0.85rem;font-size:15px;line-height:1.55;color:#6b7280;text-align:center}.pl-figure-labels{display:flex;flex-wrap:wrap;justify-content:center;gap:0.5rem 0.6rem;margin-top:0.9rem}.pl-figure-labels span{font-size:12.5px;font-weight:800;letter-spacing:0.02em;color:var(--pl-blue);background:#eef3ff;padding:0.35rem 0.85rem;border-radius:999px}.context-link{font-weight:700;border-bottom:2px solid rgba(65,105,225,.25);text-decoration:none}.context-link:hover{border-bottom-color:var(--pl-blue);text-decoration:none}.pl-parent-link{max-width:var(--pl-reading);margin:0 0 2.5rem;padding:1.25rem 1.5rem;display:flex;align-items:center;gap:1rem;border-left:4px solid var(--pl-blue);border-radius:var(--pl-radius-sm);background:var(--pl-blue-soft)}.pl-parent-link svg{flex:none;color:var(--pl-blue)}.pl-parent-link p{margin:0;font-size:15px;line-height:1.55}.pl-parent-link a{font-weight:800}.pl-related-box{margin-top:1.75rem;padding:1.1rem;border-radius:14px;background:var(--pc-baby-blue-deep)}.pl-related-box h2{color:var(--pc-ink)}.pl-related-list{margin:0;padding:0;list-style:none}.pl-related-list li{padding:0.7rem 0;border-bottom:1px solid rgba(255,255,255,.3)}.pl-related-list li:last-child{border-bottom:0}.pl-related-list a{display:block;color:var(--pc-ink);font-size:14px;font-weight:700;text-decoration:none;line-height:1.4}.pl-related-list a:hover{color:#fff}.pl-continue{margin-top:4rem}.pl-continue h2{margin:0 0 1.5rem;font-size:clamp(26px,3.4vw,36px);line-height:1.18;letter-spacing:-0.03em}.pl-card-kicker{display:inline-block;margin-bottom:0.6rem;font-size:11px;font-weight:800;letter-spacing:0.08em;text-transform:uppercase;color:var(--pl-blue)}.pl-service-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0.9rem;max-width:860px;margin:1.75rem 0;padding:0;list-style:none}.pl-service-links a{display:flex;min-height:100px;height:100%;align-items:flex-end;padding:1.25rem;border:1px solid var(--pl-border);border-radius:var(--pl-radius-md);background:#fff;color:var(--pc-ink);font-weight:700;line-height:1.35;text-decoration:none;box-shadow:0 12px 30px rgba(28,45,84,.07);transition:transform 0.18s ease,border-color 0.18s ease,box-shadow 0.18s ease}.pl-service-links a:hover{transform:translateY(-3px);border-color:#b8c8f6;color:var(--pl-blue-dark);box-shadow:0 16px 38px rgba(28,45,84,.11)}.pl-checklist{display:grid;gap:0.8rem;max-width:860px;margin-top:1.75rem}.pl-check-item{display:grid;grid-template-columns:30px minmax(0,1fr);gap:0.85rem;align-items:start;padding:1.1rem 1.25rem;border:1px solid var(--pl-border);border-radius:var(--pl-radius-sm);background:#fff;cursor:pointer;transition:border-color 0.18s ease,background 0.18s ease,transform 0.18s ease}.pl-check-item:hover{transform:translateY(-1px);border-color:#bdcaf0;background:#fbfcff}.pl-check-item input{width:20px;height:20px;margin:2px 0 0;accent-color:var(--pl-blue)}.pl-check-item span{color:#343a47;font-size:16px;line-height:1.55}.pl-faq{display:grid;gap:0.8rem;max-width:860px;margin-top:1.75rem}.pl-faq details{border:1px solid var(--pl-border);border-radius:var(--pl-radius-sm);background:#fff;overflow:clip}.pl-faq summary{position:relative;padding:1.2rem 3.4rem 1.2rem 1.3rem;cursor:pointer;color:var(--pc-ink);font-size:16px;font-weight:700;line-height:1.45;list-style:none}.pl-faq summary::-webkit-details-marker{display:none}.pl-faq summary::after{content:"+";position:absolute;top:50%;right:1.3rem;width:26px;height:26px;transform:translateY(-50%);display:grid;place-items:center;border-radius:50%;background:var(--pl-blue-soft);color:var(--pl-blue);font-size:18px;line-height:1}.pl-faq details[open] summary::after{content:"\2013"}.pl-faq-answer{padding:0 1.3rem 1.3rem}.pl-faq-answer p:last-child{margin-bottom:0}.pl-disclaimer{max-width:var(--pl-reading);margin-top:1.75rem;padding:1.1rem 1.25rem;border-left:4px solid var(--pl-blue);background:#f8f9fc;color:#555d6c;font-size:14px;line-height:1.65}.pl-back-top{position:fixed;right:1.4rem;bottom:5.5rem;z-index:20;width:48px;height:48px;border:0;border-radius:50%;background:#000;color:#fff;font-size:20px;cursor:pointer;box-shadow:0 14px 34px rgba(0,0,0,.30);opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity 0.18s ease,transform 0.18s ease}.pl-back-top.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}.pl-sidebar{position:sticky;top:6.5rem;padding:1.5rem;border:1px solid var(--pl-border);border-radius:var(--pl-radius-md);background:rgba(255,255,255,.94);box-shadow:0 14px 40px rgba(35,53,94,.08);backdrop-filter:blur(16px)}.pl-sidebar h2{margin:0 0 1rem;font-size:18px;line-height:1.3}.pl-toc{margin:0;padding:0;list-style:none}.pl-toc a{display:block;padding:0.55rem 0;border-bottom:1px solid #edf0f6;color:#4b5362;font-size:14px;font-weight:600;line-height:1.4;text-decoration:none}.pl-toc li:last-child a{border-bottom:0}.pl-toc a:hover,.pl-toc a.is-active{color:var(--pl-blue)}.pl-sidebar-help{margin-top:1.4rem;padding:1.1rem;border-radius:14px;background:var(--pl-blue-soft)}.pl-sidebar-help strong{display:block;margin-bottom:0.4rem;font-size:15px}.pl-sidebar-help p{margin:0 0 0.75rem;color:#515867;font-size:13px;line-height:1.55}.pl-sidebar-help a{font-size:14px;font-weight:800;color:var(--pl-blue-dark)}@media (max-width:980px){.pl-controls{grid-template-columns:1fr}.pl-categories{justify-content:flex-start}.pl-featured{grid-template-columns:1fr}.pl-featured-media{min-height:300px}.pl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pl-layout{grid-template-columns:1fr;gap:0}.pl-sidebar{position:static;order:-1;margin-bottom:2.75rem}.pl-toc{columns:2;column-gap:1.75rem}.pl-toc li{break-inside:avoid}}@media (max-width:700px){.pl-featured-content,.pl-newsletter,.pl-cta{padding:1.5rem}.pl-featured-media{min-height:220px}.pl-grid{grid-template-columns:1fr}.pl-section-head{display:block}.pl-section-head p{margin-top:0.75rem}.pl-newsletter-actions,.pl-cta-actions{display:grid}.pl-button{width:100%}.pl-intro-card{padding:1.5rem;border-radius:20px}.pl-article-section{margin-top:2.75rem}.pl-service-links{grid-template-columns:1fr}.pl-service-links a{min-height:84px}.pl-toc{columns:1}.pl-callout{padding:1.5rem;border-radius:20px}.pl-back-top{right:1rem;bottom:6.5rem}}@media (prefers-reduced-motion:reduce){.pl-back-top{transition:none}}