:root{
  --sp-bg:#f7f8fb;
  --sp-surface:#ffffff;
  --sp-surface-2:#eef2f7;
  --sp-text:#141821;
  --sp-muted:#5f6b7d;
  --sp-soft:#5f6b7d;
  --sp-border:#e1e6ef;
  --sp-accent:#2563eb;
  --sp-accent-2:#0f766e;
  --sp-danger:#dc2626;
  --sp-shadow:0 18px 50px rgba(18,29,51,.08);
  --sp-shadow-soft:0 8px 26px rgba(18,29,51,.06);
  --sp-radius:18px;
  --sp-radius-sm:12px;
  --sp-max:1180px;
  --sp-content:790px;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --sp-bg:#0f1218;
  --sp-surface:#171b23;
  --sp-surface-2:#202634;
  --sp-text:#edf2fb;
  --sp-muted:#a6b0c0;
  --sp-soft:#94a3b8;
  --sp-border:#2b3342;
  --sp-accent:#60a5fa;
  --sp-accent-2:#2dd4bf;
  --sp-shadow:0 18px 50px rgba(0,0,0,.28);
  --sp-shadow-soft:0 8px 26px rgba(0,0,0,.20);
  color-scheme:dark;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at top left,rgba(37,99,235,.12),transparent 34rem),var(--sp-bg);color:var(--sp-text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;font-size:16px;line-height:1.68;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--sp-accent)}img{max-width:100%;height:auto;display:block}button,input,textarea{font:inherit}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--sp-accent);outline-offset:3px}.sp-container{max-width:var(--sp-max);margin:0 auto;padding:0 22px}.sp-header{position:sticky;top:0;z-index:80;background:rgba(247,248,251,.78);backdrop-filter:blur(18px);border-bottom:1px solid var(--sp-border)}[data-theme="dark"] .sp-header{background:rgba(15,18,24,.78)}.sp-nav{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:18px}.sp-brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.03em;font-size:1.12rem}.sp-logo-mark{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--sp-accent),var(--sp-accent-2));color:#fff;box-shadow:var(--sp-shadow-soft);font-weight:900}.sp-menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}.sp-menu a{display:block;padding:9px 12px;border-radius:999px;color:var(--sp-muted);font-size:.92rem;font-weight:650}.sp-menu a:hover{background:var(--sp-surface-2);color:var(--sp-text)}.sp-actions{display:flex;align-items:center;gap:8px}.sp-theme-toggle{border:1px solid var(--sp-border);background:var(--sp-surface);color:var(--sp-text);width:38px;height:38px;border-radius:999px;cursor:pointer;box-shadow:var(--sp-shadow-soft)}.sp-theme-toggle:hover{border-color:var(--sp-accent)}.sp-main{min-height:calc(100vh - 70px);padding:34px 0 44px}.sp-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.72fr);gap:28px;align-items:stretch;margin:34px 0}.sp-hero-card,.sp-panel,.sp-card,.sp-article{background:var(--sp-surface);border:1px solid var(--sp-border);border-radius:var(--sp-radius);box-shadow:var(--sp-shadow)}.sp-hero-card{padding:42px}.sp-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--sp-accent);font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:.11em}.sp-kicker::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--sp-accent-2)}.sp-hero h1{font-size:clamp(2.25rem,5vw,4.5rem);line-height:1.02;letter-spacing:-.065em;margin:16px 0 18px}.sp-hero p{color:var(--sp-muted);font-size:1.06rem;margin:0 0 24px;max-width:66ch}.sp-search{display:flex;gap:10px;background:var(--sp-surface-2);padding:8px;border:1px solid var(--sp-border);border-radius:16px}.sp-search input{min-width:0;flex:1;border:0;outline:0;background:transparent;color:var(--sp-text);padding:12px 13px}.sp-search button,.sp-btn{border:0;border-radius:13px;background:var(--sp-text);color:var(--sp-bg);font-weight:800;padding:12px 18px;cursor:pointer}.sp-btn{display:inline-flex;align-items:center;gap:8px}.sp-btn:hover{color:var(--sp-bg);filter:brightness(.95)}.sp-btn-accent{background:linear-gradient(135deg,var(--sp-accent),var(--sp-accent-2));color:#fff}.sp-hero-side{padding:24px}.sp-stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:15px}.sp-stat{background:var(--sp-surface-2);border:1px solid var(--sp-border);border-radius:15px;padding:16px}.sp-stat strong{display:block;font-size:1.45rem;line-height:1}.sp-stat span{display:block;color:var(--sp-muted);font-size:.83rem;margin-top:6px}.sp-section{margin:34px 0}.sp-section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}.sp-section h2{font-size:clamp(1.35rem,3vw,2.05rem);line-height:1.12;letter-spacing:-.04em;margin:0}.sp-section-desc{color:var(--sp-muted);margin:8px 0 0;max-width:64ch}.sp-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.sp-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.sp-card{position:relative;overflow:hidden;padding:20px;transition:transform .18s ease,border-color .18s ease}.sp-card:hover{transform:translateY(-3px);border-color:rgba(37,99,235,.36)}.sp-card h3{margin:0 0 8px;font-size:1.05rem;letter-spacing:-.02em}.sp-card p{margin:0;color:var(--sp-muted);font-size:.94rem}.sp-card-link{position:absolute;inset:0}.sp-chip-row{display:flex;flex-wrap:wrap;gap:10px}.sp-chip{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--sp-border);background:var(--sp-surface);border-radius:999px;padding:9px 13px;color:var(--sp-muted);font-size:.9rem;font-weight:650}.sp-chip:hover{border-color:var(--sp-accent);color:var(--sp-text)}.sp-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:22px;align-items:start}.sp-content{max-width:var(--sp-content)}.sp-panel{padding:22px}.sp-sidebar{position:sticky;top:94px;display:grid;gap:16px}.sp-page-title{margin:22px 0 20px}.sp-page-title h1{font-size:clamp(2rem,4vw,3.25rem);letter-spacing:-.055em;line-height:1.05;margin:0 0 12px}.sp-page-title p{color:var(--sp-muted);margin:0}.sp-post-list{display:grid;gap:16px}.sp-post{display:grid;grid-template-columns:210px minmax(0,1fr);gap:18px;background:var(--sp-surface);border:1px solid var(--sp-border);border-radius:var(--sp-radius);box-shadow:var(--sp-shadow-soft);padding:14px;position:relative;overflow:hidden}.sp-post:hover{border-color:rgba(37,99,235,.36)}.sp-post img{width:100%;height:138px;object-fit:cover;border-radius:14px;background:var(--sp-surface-2)}.sp-post h2{font-size:1.15rem;line-height:1.28;letter-spacing:-.03em;margin:2px 0 8px}.sp-post p{color:var(--sp-muted);font-size:.94rem;margin:0 0 10px}.sp-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--sp-soft);font-size:.82rem}.sp-article{max-width:var(--sp-content);margin:0 auto;padding:30px}.sp-article-header{border-bottom:1px solid var(--sp-border);padding-bottom:22px;margin-bottom:24px}.sp-breadcrumbs{font-size:.86rem;color:var(--sp-muted);margin-bottom:13px}.sp-breadcrumbs a{color:var(--sp-muted)}.sp-article h1{font-size:clamp(2rem,4.5vw,3.35rem);line-height:1.04;letter-spacing:-.06em;margin:0 0 14px}.sp-cover{margin:24px 0}.sp-cover img{width:100%;border-radius:18px;box-shadow:var(--sp-shadow-soft);background:var(--sp-surface-2)}.sp-cover figcaption{text-align:center;color:var(--sp-muted);font-size:.83rem;margin-top:8px}.sp-prose{font-size:1.055rem;color:var(--sp-text)}.sp-prose p{margin:0 0 18px}.sp-prose h2{font-size:1.72rem;line-height:1.2;letter-spacing:-.035em;margin:32px 0 12px}.sp-prose h3{font-size:1.22rem;margin:24px 0 8px}.sp-prose ul,.sp-prose ol{padding-left:1.25rem}.sp-prose li{margin:.35rem 0}.sp-toc{background:var(--sp-surface-2);border:1px solid var(--sp-border);border-radius:16px;padding:18px;margin:22px 0}.sp-toc h2{font-size:1rem;margin:0 0 10px}.sp-toc a{color:var(--sp-muted)}.sp-ad{border:1px dashed var(--sp-border);background:var(--sp-surface);border-radius:16px;padding:12px;margin:22px 0;text-align:center;overflow:hidden}.sp-ad-label{display:block;color:var(--sp-soft);font-size:.68rem;text-transform:uppercase;letter-spacing:.16em;margin-bottom:8px}.sp-ad-compact{margin:14px 0}.sp-ad-cta{display:flex;align-items:center;justify-content:space-between;gap:14px;text-align:left;border:1px solid var(--sp-border);background:linear-gradient(135deg,rgba(37,99,235,.08),rgba(15,118,110,.08));border-radius:18px;padding:18px;margin:26px 0}.sp-ad-cta p{margin:0;color:var(--sp-muted);font-size:.95rem}.sp-footer{border-top:1px solid var(--sp-border);background:var(--sp-surface);padding:34px 0 24px;margin-top:34px}.sp-footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:22px}.sp-footer p{color:var(--sp-muted);margin:10px 0 0}.sp-footer h3{font-size:.9rem;text-transform:uppercase;letter-spacing:.12em;color:var(--sp-soft);margin:0 0 10px}.sp-footer a{display:block;color:var(--sp-muted);padding:4px 0}.sp-footer-bottom{border-top:1px solid var(--sp-border);margin-top:24px;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--sp-muted);font-size:.86rem}.sp-toplink{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--sp-text);color:var(--sp-bg);box-shadow:var(--sp-shadow);opacity:0;visibility:hidden;transition:.2s;z-index:70}.sp-toplink.is-visible{opacity:1;visibility:visible}.sp-note{border-left:4px solid var(--sp-accent);background:var(--sp-surface-2);padding:16px;border-radius:12px;margin:20px 0;color:var(--sp-muted)}.sp-empty{padding:30px;border:1px solid var(--sp-border);border-radius:var(--sp-radius);background:var(--sp-surface);color:var(--sp-muted);text-align:center}.sp-search-mini{display:flex;gap:8px;margin-top:14px}.sp-search-mini input{flex:1;min-width:0;border:1px solid var(--sp-border);background:var(--sp-surface);color:var(--sp-text);border-radius:12px;padding:10px 12px}.sp-search-mini button{border:0;border-radius:12px;padding:10px 13px;background:var(--sp-text);color:var(--sp-bg);font-weight:800}.sp-faq details{background:var(--sp-surface);border:1px solid var(--sp-border);border-radius:14px;padding:14px 16px;margin:10px 0}.sp-faq summary{font-weight:800;cursor:pointer}.sp-faq p{color:var(--sp-muted);margin:10px 0 0}.sp-page-card{max-width:820px;margin:0 auto;background:var(--sp-surface);border:1px solid var(--sp-border);border-radius:var(--sp-radius);box-shadow:var(--sp-shadow);padding:30px}.sp-page-card h1{font-size:2.35rem;letter-spacing:-.05em;line-height:1.05;margin:0 0 12px}.sp-page-card h2{margin-top:28px}.sp-page-card p,.sp-page-card li{color:var(--sp-muted)}@media (max-width:980px){.sp-hero,.sp-layout{grid-template-columns:1fr}.sp-sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}.sp-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.sp-footer-grid{grid-template-columns:1fr 1fr}.sp-post{grid-template-columns:180px minmax(0,1fr)}}@media (max-width:720px){body{font-size:15px}.sp-container{padding:0 15px}.sp-nav{min-height:64px}.sp-menu{display:none}.sp-hero-card{padding:26px}.sp-hero{margin:20px 0}.sp-search{display:block}.sp-search button{width:100%;margin-top:8px}.sp-grid,.sp-grid-2,.sp-sidebar,.sp-footer-grid{grid-template-columns:1fr}.sp-post{display:block}.sp-post img{height:190px;margin-bottom:12px}.sp-article,.sp-page-card{padding:21px;border-radius:16px}.sp-footer-bottom{display:block}.sp-ad-cta{display:block}.sp-ad-cta .sp-btn{margin-top:12px}.sp-stat-grid{grid-template-columns:1fr 1fr}}@media print{.sp-header,.sp-footer,.sp-ad,.sp-toplink,.sp-theme-toggle{display:none!important}body{background:#fff}.sp-article{box-shadow:none;border:0;padding:0}}
.sp-page-title-wide{max-width:900px}.sp-page-title h1{overflow-wrap:anywhere}.sp-fallback-thumb{width:100%;height:138px;border-radius:14px;background:linear-gradient(135deg,var(--sp-accent),var(--sp-accent-2));color:#fff;display:grid;place-items:center;font-weight:900;letter-spacing:.12em}.sp-ad iframe{max-width:100%!important}.sp-ad script+iframe{max-width:100%!important}@media (max-width:980px){.sp-page-title-wide{max-width:none}}