:root{color-scheme:dark;--bg: #07111f;--bg-soft: #0d1929;--card: rgba(17, 31, 50, .82);--card-solid: #111f32;--border: #263b57;--border-soft: rgba(92, 126, 164, .26);--fg: #f2f7fc;--muted: #a8b7c9;--muted-strong: #c4cfdb;--accent: #61d6c7;--accent-strong: #38bfae;--accent-soft: rgba(97, 214, 199, .12);--blue: #75a9ff;--warning: #f4c86b;--max: 1160px;--radius: 18px;--radius-sm: 12px;--shadow: 0 24px 80px rgba(0, 0, 0, .24)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;min-width:320px;background:radial-gradient(900px 480px at 80% -120px,rgba(52,132,188,.17),transparent 70%),var(--bg);color:var(--fg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}img{max-width:100%}a{color:var(--accent);text-decoration:none}a:hover{color:#8ce8dc}button,summary{font:inherit}:focus-visible{outline:3px solid rgba(117,169,255,.85);outline-offset:3px}::selection{background:#61d6c747}.container{width:100%;max-width:var(--max);margin:0 auto;padding-inline:24px}.skip-link{position:fixed;top:10px;left:10px;z-index:100;transform:translateY(-150%);border-radius:8px;background:var(--fg);color:var(--bg);padding:8px 14px}.skip-link:focus{transform:translateY(0)}.topbar{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(69,94,125,.45);background:#07111fd1;backdrop-filter:blur(18px)}.topbar-inner{display:flex;min-height:68px;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--fg);font-weight:760;letter-spacing:-.02em}.brand:hover{color:var(--fg)}.brand img{border-radius:8px}.desktop-nav{display:flex;align-items:center;gap:24px;font-size:.92rem}.desktop-nav>a{color:var(--muted)}.desktop-nav>a:hover,.desktop-nav>a[aria-current=page]{color:var(--fg)}.lang-switch{padding:6px 12px;border:1px solid var(--border);border-radius:999px}.nav-download{padding:8px 15px;border-radius:10px;background:var(--accent);color:#05211d!important;font-weight:750}.nav-download:hover{background:#89e6da}.mobile-menu{display:none;position:relative}.mobile-menu summary{list-style:none;cursor:pointer;border:1px solid var(--border);border-radius:10px;color:var(--fg);padding:7px 12px}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu nav{position:absolute;top:calc(100% + 10px);right:0;display:grid;width:min(260px,calc(100vw - 32px));padding:10px;border:1px solid var(--border);border-radius:14px;background:var(--card-solid);box-shadow:var(--shadow)}.mobile-menu nav a{padding:10px 12px;border-radius:8px;color:var(--muted-strong)}.mobile-menu nav a:hover,.mobile-menu nav a[aria-current=page]{background:var(--accent-soft);color:var(--fg)}main{min-height:65vh}h1,h2,h3{line-height:1.2;letter-spacing:-.025em;text-wrap:balance}p{text-wrap:pretty}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 12px;color:var(--accent);font-size:.78rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase}.eyebrow:before{content:"";width:18px;height:1px;background:currentColor}.section{padding-top:88px}.section-heading{max-width:760px;margin-bottom:34px}.section-heading h2{margin:0 0 14px;font-size:clamp(1.75rem,4vw,2.5rem)}.section-heading p{margin:0;color:var(--muted);font-size:1.04rem}.card{border:1px solid var(--border-soft);border-radius:var(--radius);background:var(--card);box-shadow:inset 0 1px #ffffff06}.btn{display:inline-flex;min-height:46px;align-items:center;justify-content:center;gap:8px;padding:10px 19px;border:1px solid transparent;border-radius:12px;cursor:pointer;font-weight:750;transition:transform .16s ease,background .16s ease,border-color .16s ease}.btn:hover{transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--accent);color:#06241f}.btn-primary:hover{background:#8ce8dc;color:#06241f}.btn-ghost{border-color:var(--border);background:#ffffff05;color:var(--fg)}.btn-ghost:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--fg)}.footer{margin-top:104px;border-top:1px solid var(--border-soft);background:#081321}.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:44px;padding-top:48px;padding-bottom:36px}.footer-grid>div:not(.footer-brand){display:flex;flex-direction:column;align-items:flex-start;gap:9px}.footer-grid strong{margin-bottom:5px;color:var(--fg);font-size:.9rem}.footer-grid a{color:var(--muted);font-size:.9rem}.footer-grid a:hover{color:var(--fg)}.footer-brand p{max-width:320px;margin:14px 0 0;color:var(--muted);font-size:.92rem}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:20px;padding-bottom:28px;border-top:1px solid var(--border-soft);color:#7f90a5;font-size:.82rem}.footer-bottom a{color:#7f90a5}@media(max-width:860px){.desktop-nav{display:none}.mobile-menu{display:block}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-brand{grid-column:1 / -1}}@media(max-width:620px){.container{padding-inline:18px}.section{padding-top:68px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}.footer-bottom{align-items:flex-start;flex-direction:column}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important}}