:root{--pp-bg:#f4f9ff;--pp-surface:#ffffff;--pp-surface-2:#eaf4ff;--pp-primary:#0b67b2;--pp-primary-2:#0f86d9;--pp-accent:#38bdf8;--pp-ink:#102033;--pp-muted:#5b708a;--pp-line:#cfe2f5;--pp-shadow:0 18px 45px rgba(12,83,148,.12);--pp-radius:20px;--pp-focus:#ffbf47;color-scheme:light}html{scroll-behavior:smooth}body{background:linear-gradient(180deg,#f7fbff 0%,#eef7ff 42%,#f8fbff 100%)!important;color:var(--pp-ink);accent-color:var(--pp-primary)}.pp-site-header,.pp-site-footer{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--pp-ink)}.pp-site-header{position:sticky;top:0;z-index:9999;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--pp-line);box-shadow:0 8px 26px rgba(15,84,145,.08)}.pp-header-inner{max-width:1200px;margin:0 auto;padding:12px 18px;display:grid;grid-template-columns:auto 1fr minmax(220px,320px);gap:18px;align-items:center}.pp-brand{display:flex;align-items:center;gap:12px;text-decoration:none!important;color:var(--pp-ink)!important;min-width:250px}.pp-brand-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--pp-primary),var(--pp-accent));color:white;font-weight:900;box-shadow:var(--pp-shadow)}.pp-brand strong{display:block;font-size:1rem;line-height:1.1}.pp-brand small{display:block;color:var(--pp-muted);font-size:.78rem;margin-top:3px}.pp-main-nav{display:flex;gap:6px;align-items:center;justify-content:center;flex-wrap:wrap}.pp-main-nav a,.pp-footer-grid a{color:var(--pp-primary)!important;text-decoration:none!important}.pp-main-nav a{padding:10px 12px;border-radius:999px;font-weight:750;font-size:.92rem}.pp-main-nav a:hover,.pp-main-nav a[aria-current="page"]{background:var(--pp-surface-2);color:#074d86!important}.pp-search{position:relative}.pp-search input{width:100%;border:1px solid var(--pp-line);border-radius:999px;padding:11px 14px 11px 38px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='17' height='17' viewBox='0 0 24 24' fill='none' stroke='%230b67b2' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.3-4.3'/%3E%3C/svg%3E") no-repeat 13px center;color:var(--pp-ink);box-shadow:inset 0 1px 1px rgba(12,83,148,.04)}.pp-search input:focus{outline:3px solid rgba(56,189,248,.35);border-color:var(--pp-primary)}.pp-search-results{position:absolute;right:0;left:0;top:calc(100% + 8px);max-height:340px;overflow:auto;background:#fff;border:1px solid var(--pp-line);border-radius:18px;box-shadow:var(--pp-shadow);padding:8px}.pp-search-results a{display:block;padding:10px 12px;border-radius:12px;text-decoration:none!important;color:var(--pp-ink)!important}.pp-search-results a:hover{background:var(--pp-surface-2)}.pp-search-results small{display:block;color:var(--pp-muted)}.pp-breadcrumbs{max-width:1200px;margin:0 auto;padding:0 18px 10px;color:var(--pp-muted);font-size:.88rem}.pp-breadcrumbs a{color:var(--pp-primary)!important;text-decoration:none!important}.pp-breadcrumbs span{margin:0 6px}.pp-nav-toggle{display:none;border:1px solid var(--pp-line);background:#fff;color:var(--pp-primary);border-radius:12px;padding:9px 12px;font-weight:900}.pp-site-footer{margin-top:48px;background:linear-gradient(180deg,#eaf4ff,#dcefff);border-top:1px solid var(--pp-line);padding:34px 18px 22px}.pp-footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:18px}.pp-footer-grid section{background:rgba(255,255,255,.72);border:1px solid var(--pp-line);border-radius:var(--pp-radius);padding:18px;box-shadow:0 10px 28px rgba(12,83,148,.07)}.pp-footer-grid h2{font-size:1rem;margin:0 0 8px;color:#074d86}.pp-footer-grid p{margin:.25rem 0;color:var(--pp-muted);line-height:1.6}.pp-footer-bottom{max-width:1200px;margin:18px auto 0;color:var(--pp-muted);font-size:.92rem}.pp-skip-link{position:absolute;left:-9999px;top:8px;background:#fff;color:var(--pp-primary);padding:8px 12px;border-radius:10px}.pp-skip-link:focus{left:12px;z-index:10000}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.pp-hero{max-width:1200px;margin:0 auto;padding:54px 18px 28px;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:26px;align-items:center}.pp-hero-card,.pp-panel{background:rgba(255,255,255,.86);border:1px solid var(--pp-line);border-radius:28px;box-shadow:var(--pp-shadow);padding:28px}.pp-kicker{display:inline-flex;gap:8px;align-items:center;background:#e6f5ff;color:#075985;border:1px solid #bfe6ff;padding:7px 12px;border-radius:999px;font-weight:800;font-size:.86rem}.pp-hero h1{font-size:clamp(2.2rem,5vw,4.6rem);line-height:.97;margin:18px 0;color:#0b2b4f;letter-spacing:-.055em}.pp-hero p{font-size:1.12rem;line-height:1.75;color:var(--pp-muted);max-width:65ch}.pp-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.pp-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 18px;font-weight:850;text-decoration:none!important;border:1px solid var(--pp-line)}.pp-btn-primary{background:linear-gradient(135deg,var(--pp-primary),var(--pp-primary-2));color:#fff!important;box-shadow:var(--pp-shadow)}.pp-btn-ghost{background:#fff;color:var(--pp-primary)!important}.pp-grid{max-width:1200px;margin:0 auto;padding:20px 18px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.pp-card{background:#fff;border:1px solid var(--pp-line);border-radius:22px;padding:20px;box-shadow:0 12px 30px rgba(12,83,148,.08)}.pp-card h2,.pp-card h3{margin-top:0;color:#0b4778}.pp-card p{color:var(--pp-muted);line-height:1.65}.pp-card a{color:var(--pp-primary)!important;font-weight:800;text-decoration:none!important}.pp-topic-list{display:grid;gap:10px}.pp-topic-list a{display:flex;justify-content:space-between;gap:10px;padding:11px 12px;border:1px solid var(--pp-line);border-radius:14px;background:#fbfdff;color:var(--pp-ink)!important;text-decoration:none!important}.pp-topic-list a:hover{background:var(--pp-surface-2);transform:translateY(-1px)}.pp-topic-list small{color:var(--pp-muted)}#main-content{scroll-margin-top:110px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--pp-focus)!important;outline-offset:3px!important}@media(max-width:900px){.pp-header-inner{grid-template-columns:auto auto;gap:10px}.pp-brand{min-width:0}.pp-main-nav{grid-column:1/-1;display:none;justify-content:flex-start}.pp-main-nav.pp-open{display:flex}.pp-search{grid-column:1/-1}.pp-nav-toggle{display:inline-flex;justify-self:end}.pp-hero{grid-template-columns:1fr;padding-top:30px}.pp-grid,.pp-footer-grid{grid-template-columns:1fr}}@media(max-width:560px){.pp-brand small{display:none}.pp-brand-mark{width:42px;height:42px}.pp-hero-card,.pp-panel{padding:20px}.pp-hero h1{font-size:2.3rem}.pp-main-nav a{width:100%;background:#f6fbff}}