:root{--bg:#07070b;--surface:rgba(255,255,255,.055);--surface2:rgba(255,255,255,.09);--line:rgba(255,255,255,.11);--ink:#f4f4f8;--muted:#a6a6b8;--primary:#7c6cff;--cyan:#22d3ee;--ok:#34d399;--warn:#fbbf24;--font:"Outfit","Noto Sans SC",system-ui,sans-serif;--display:"Syne","Outfit","Noto Sans SC",sans-serif}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);background:#07070b;color:var(--ink);line-height:1.7;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(900px 520px at 12% -10%,rgba(34,211,238,.18),transparent 58%),radial-gradient(720px 460px at 92% 0,rgba(124,108,255,.2),transparent 54%),linear-gradient(180deg,#07070b,#0b0b13 62%,#07070b)}a{color:inherit;text-decoration:none}.wrap{width:min(1080px,92vw);margin:0 auto;position:relative;z-index:1}.nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(18px) saturate(1.2);background:rgba(7,7,11,.76);border-bottom:1px solid var(--line)}.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0}.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:780}.logo img{width:46px;height:46px;border-radius:12px}.nav-links{display:flex;gap:20px;list-style:none;color:var(--muted);font-size:.92rem}.nav-links a:hover{color:var(--ink)}.nav-right{display:flex;align-items:center;gap:10px}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.menu-btn{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font:700 1.12rem var(--font)}.mobile-menu{display:none;position:fixed;inset:0;z-index:90;background:rgba(7,7,11,.96);backdrop-filter:blur(18px);padding:84px 22px 36px;flex-direction:column;gap:0;overflow-y:auto}.mobile-menu.open{display:flex}.mobile-menu a:not(.btn){font-size:1.08rem;font-weight:650;padding:14px 4px;border-bottom:1px solid var(--line);color:var(--ink)}.mobile-menu .menu-cta{margin-top:20px;width:100%;padding:.85rem 1.1rem;font-size:.95rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.78rem 1.16rem;border-radius:999px;border:1px solid var(--line);font-weight:750}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--cyan));color:#07070b;border:0}.btn-ghost{background:var(--surface)}.hero{padding:82px 0 46px}.eyebrow{display:inline-flex;margin-bottom:16px;padding:7px 13px;border-radius:999px;background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.25);color:#67e8f9;font-weight:760;font-size:.82rem}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center}h1{font-family:var(--display);font-size:clamp(2.2rem,5vw,4.2rem);line-height:1.04;letter-spacing:-.045em;margin-bottom:18px}.lead{font-size:1.14rem;color:var(--muted);max-width:44em;margin-bottom:24px}.cta-row{display:flex;flex-wrap:wrap;gap:12px}.panel,.card,.toc,.note{border:1px solid var(--line);background:linear-gradient(180deg,var(--surface2),rgba(255,255,255,.035));border-radius:26px;padding:26px;box-shadow:0 24px 80px rgba(0,0,0,.24)}.panel h2,.section h2{font-family:var(--display);font-size:clamp(1.55rem,3vw,2.35rem);line-height:1.12;margin-bottom:14px}.section{padding:42px 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid.two{grid-template-columns:repeat(2,1fr)}.card h3{font-family:var(--display);font-size:1.13rem;margin-bottom:8px}.card p,.muted{color:var(--muted)}.answer{font-size:1.05rem;color:#ddddeb}.answer strong{color:#fff}.list{display:grid;gap:10px;list-style:none;margin-top:16px}.list li{display:flex;gap:10px;color:var(--muted)}.list li:before{content:"✓";color:var(--ok);font-weight:900}.toc ul{list-style:none;display:grid;gap:10px}.toc a{color:#c7d2fe}.article{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}.article-body{display:grid;gap:26px}.article-body section{border:1px solid var(--line);background:rgba(255,255,255,.045);border-radius:24px;padding:26px}.article-body h2{font-family:var(--display);font-size:1.65rem;line-height:1.18;margin-bottom:10px}.article-body h3{font-size:1.08rem;margin:16px 0 6px}.article-body p,.article-body li{color:#d7d7e2}.article-body ul,.article-body ol{padding-left:1.25rem;display:grid;gap:8px}.table{width:100%;border-collapse:collapse;overflow:hidden;border-radius:18px}.table th,.table td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.table th{color:#fff;background:rgba(255,255,255,.07)}.table td{color:#d7d7e2}.note{border-color:rgba(52,211,153,.28);background:rgba(52,211,153,.07)}.faq{display:grid;gap:10px}.faq-item{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:18px}.faq-q{font-weight:760;margin-bottom:6px}.footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);margin-top:42px}.foot-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px}.breadcrumbs{color:var(--muted);font-size:.9rem;margin-bottom:18px}.breadcrumbs a{color:#c7d2fe}.kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.kpi div{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:16px}.kpi strong{display:block;font-family:var(--display);font-size:1.35rem;color:#fff}.lang-select{background:rgba(255,255,255,.08);color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:.62rem .75rem;font:inherit;font-weight:750;min-height:42px}.lang-select option{background:#0b0b13;color:#fff}@media(max-width:860px){.hero-grid,.grid,.grid.two,.article{grid-template-columns:1fr}.nav-links{display:none}.menu-btn{display:grid;place-items:center;width:36px;height:36px;border-radius:10px}.nav-right .btn-primary{display:none}.nav-inner{padding:10px 0;gap:8px}.nav-right{gap:8px}.logo{font-size:1.08rem;gap:9px}.logo img{width:44px;height:44px;border-radius:11px}.hero{padding-top:54px}.panel,.card,.toc,.note,.article-body section{padding:22px}.kpi{grid-template-columns:repeat(2,1fr)}.lang-select{margin-left:auto;padding:6px 24px 6px 10px;font-size:.72rem;min-height:36px}}


/* Static SEO pages: exact homepage top navigation. */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  backdrop-filter:blur(18px) saturate(1.2);
  background:rgba(7,7,11,0.72);
  border-bottom:1px solid var(--line);
  transition:padding .25s;
}
.nav-inner{
  width:min(1160px,92vw);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;gap:12px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--display);font-weight:700;font-size:1.15rem;letter-spacing:-0.02em;
}
.logo img{width:52px;height:52px;border-radius:12px;object-fit:contain;}
.nav-links{display:flex;gap:22px;list-style:none;color:var(--muted);font-size:.92rem;align-items:center;}
.nav-links a{font-size:0.9rem;color:var(--muted);font-weight:500;transition:color .2s;}
.nav-links a:hover{color:var(--ink);}
.nav-right{display:flex;align-items:center;gap:10px;}
.lang-select{
  appearance:none;-webkit-appearance:none;
  background:var(--surface2);color:var(--ink);
  border:1px solid var(--line);border-radius:999px;
  padding:8px 28px 8px 12px;font:600 0.78rem var(--font);
  min-height:auto;line-height:normal;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239b9bb0' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 6l3.5 4 3.5-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 10px center;background-size:12px 12px;
}
.lang-select option{background:#0b0b13;color:#fff;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0.75rem 1.25rem;border-radius:999px;font-weight:600;font-size:0.92rem;
  border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s;
}
.btn:active{transform:scale(0.98);}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#5b8cff 50%,var(--cyan));
  color:#0a0a12;border-color:transparent;box-shadow:0 0 0 1px rgba(255,255,255,0.1),0 12px 40px rgba(124,108,255,0.35);
}
.btn-primary:hover{box-shadow:0 0 0 1px rgba(255,255,255,0.15),0 16px 50px rgba(124,108,255,0.5);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--surface2);}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;
  font:700 1.12rem var(--font);
}
.mobile-menu{
  display:none;position:fixed;inset:0;z-index:90;
  background:rgba(7,7,11,0.96);padding:80px 22px 36px;
  flex-direction:column;gap:0;overflow-y:auto;
}
.mobile-menu.open{display:flex;}
.mobile-menu a:not(.btn){font-size:1.08rem;font-weight:600;padding:14px 4px;border-bottom:1px solid var(--line);color:var(--ink);}
.mobile-menu .menu-cta{margin-top:20px;width:100%;padding:0.85rem 1.1rem;font-size:0.95rem;}
body{padding-top:76px;}
.hero{padding-top:64px;}
@media(max-width:900px){
  .nav-links{display:none;}
  .menu-btn{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;font-size:1.05rem;line-height:1;}
  .nav-right .btn-primary{display:none;}
  .nav-inner{padding:10px 0;gap:8px;}
  .nav-right{gap:8px;}
  .logo{font-size:1.08rem;gap:9px;}
  .logo img{width:44px;height:44px;border-radius:11px;}
  .lang-select{margin-left:auto;padding:6px 24px 6px 10px;font-size:0.72rem;min-height:36px;}
  body{padding-top:64px;}
  .hero{padding-top:46px;}
}