:root{--bg:#2E3A52;--bg2:#26314A;--card:#36445F;--card2:#3D4C6A;--line:#4A5A7A;--fg:#EEF3FB;--muted:#AEBBD3;--accent:#7DB8FF;--accent-ink:#0F1A2E;--ok:#7DB8FF;--radius:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 "Inter",system-ui,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
img,svg{display:block}
.wrap{max-width:1280px;margin:0 auto;padding:0 20px}
/* header */
.top{position:sticky;top:0;z-index:5;background:rgba(38,49,74,.92);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.06)}
.top .wrap{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);text-decoration:none;font-weight:700;font-size:17px;letter-spacing:-.01em}
.brand .logo{width:32px;height:32px}
.top nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.top nav a{color:var(--muted);text-decoration:none;font-size:15px;padding:6px 10px;border-radius:8px}
.top nav a:hover{color:var(--fg);background:rgba(255,255,255,.06)}
.top nav a.lang{border:1px solid var(--line);color:var(--fg)}
@media (max-width:640px){.top nav a.hide-sm{display:none}}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:var(--accent-ink);font-weight:700;text-decoration:none;padding:14px 22px;border-radius:12px;font-size:17px;transition:transform .15s,box-shadow .15s;box-shadow:0 6px 24px rgba(125,184,255,.25)}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 30px rgba(125,184,255,.35)}
.btn .ic{width:22px;height:22px}
.note{color:var(--muted);font-size:14px;margin-top:12px}
/* hero */
.hero{padding:72px 0 56px;background:radial-gradient(900px 420px at 80% -10%,rgba(125,184,255,.16),transparent 70%)}
.hero .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr}.hero{padding-top:44px}}
h1{font-size:clamp(34px,5vw,54px);line-height:1.08;letter-spacing:-.03em;margin:0 0 18px;font-weight:800}
h1 span{color:var(--accent)}
.lead{font-size:19px;color:var(--muted);margin:0 0 28px;max-width:34em}
/* hero video */
.video{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--bg2);box-shadow:0 30px 60px rgba(0,0,0,.3);aspect-ratio:16/9}
.video img{display:block;width:100%;height:100%;object-fit:cover}
/* sections */
section{padding:64px 0;scroll-margin-top:64px}
section.alt{background:var(--bg2)}
h2{font-size:clamp(26px,3.4vw,34px);letter-spacing:-.02em;margin:0 0 28px;line-height:1.2}
.grid{display:grid;gap:16px}
.g4{grid-template-columns:repeat(4,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:1fr}}
@media (max-width:560px){.g4,.g2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);padding:22px}
.card h3{margin:12px 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:15.5px}
.card .ic{width:28px;height:28px;color:var(--accent)}
.step{position:relative}
.step .n{position:absolute;top:18px;right:20px;color:var(--line);font-weight:800;font-size:34px;line-height:1}
.priv{display:flex;gap:22px;align-items:flex-start;background:var(--card);border-radius:20px;padding:30px;border:1px solid rgba(125,184,255,.25)}
.priv .ic{width:46px;height:46px;color:var(--accent);flex:none}
.priv h2{margin-bottom:10px}
.priv p{margin:0 0 10px;color:var(--muted)}
@media (max-width:560px){.priv{flex-direction:column}}
.alist a{display:flex;justify-content:space-between;align-items:center;gap:16px;text-decoration:none;color:var(--fg);background:var(--card);border-radius:12px;padding:16px 20px;border:1px solid rgba(255,255,255,.06);transition:border-color .15s}
.alist a:hover{border-color:var(--accent)}
.alist a span{color:var(--accent);white-space:nowrap;font-size:15px}
details{background:var(--card);border-radius:12px;padding:0 20px;border:1px solid rgba(255,255,255,.06)}
details+details{margin-top:10px}
summary{cursor:pointer;font-weight:600;padding:16px 0;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--accent);font-weight:400;font-size:22px;line-height:1}
details[open] summary::after{content:"–"}
details p{margin:0 0 16px;color:var(--muted)}
.cta{text-align:center}
.cta h2{margin-bottom:22px}
.sub{color:var(--muted);margin:-14px 0 28px;max-width:46em}
/* screenshots */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.shots{grid-template-columns:1fr}}
/* function links */
a.card.fn{display:block;text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
a.card.fn:hover{border-color:var(--accent);transform:translateY(-2px)}
a.card.fn h3::after{content:" →";color:var(--accent)}
.article .shot{margin:24px 0 8px}
.article .shot img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line)}
.shots figure{margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.shots img{width:100%;height:auto}
.more-cta{text-align:center;margin-top:36px}
/* status window */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:32px}}
.split img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line);box-shadow:0 24px 50px rgba(0,0,0,.28)}
.split p{color:var(--muted);margin:0}
.ticks{list-style:none;padding:0;margin:18px 0 0}
.ticks li{position:relative;padding-left:30px;margin:10px 0;color:#D7E0EE}
.ticks li::before{content:"";position:absolute;left:4px;top:.55em;width:12px;height:7px;border-left:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);transform:rotate(-45deg)}
/* comparison */
.compare{width:100%;border-collapse:separate;border-spacing:0;background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.06);font-size:15.5px}
.compare th,.compare td{text-align:left;padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.06);vertical-align:top}
.compare thead th{background:var(--card2);font-size:13.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.compare tbody tr:last-child>*{border-bottom:0}
.compare tbody th{font-weight:600;white-space:nowrap}
.compare td{color:var(--muted)}
.compare td.us{color:var(--fg);font-weight:600}
@media (max-width:700px){.compare thead{display:none}.compare,.compare tbody,.compare tr,.compare th,.compare td{display:block;width:100%}.compare tr{border-bottom:1px solid var(--line)}.compare tbody tr:last-child{border-bottom:0}.compare th,.compare td{border:0;padding:4px 16px}.compare tbody th{padding-top:14px}.compare td.us{padding-bottom:14px}.compare td[data-l]::before{content:attr(data-l) ": ";color:var(--muted);font-weight:400}}
/* footer */
footer{border-top:1px solid rgba(255,255,255,.06);padding:28px 0 40px;color:var(--muted);font-size:14.5px}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--fg)}
footer .sp{margin-left:auto}
/* article */
.article{max-width:740px;margin:0 auto;padding:48px 20px 32px}
.article .back{color:var(--muted);text-decoration:none;font-size:15px}
.article h1{font-size:clamp(30px,4.4vw,42px);margin-top:18px}
.article h2{font-size:24px;margin:36px 0 12px}
.article p,.article li{color:#D7E0EE}
.article ol,.article ul{padding-left:22px}
.article li{margin:6px 0}
kbd{font:600 14px "Inter",sans-serif;background:var(--card2);border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 7px;color:var(--fg)}
code{font:15px Consolas,"Cascadia Mono",monospace;background:var(--bg2);border:1px solid var(--line);border-radius:6px;padding:2px 7px;color:#CFE3FF}
.inline-cta{display:flex;flex-wrap:wrap;gap:16px 24px;align-items:center;justify-content:space-between;background:var(--card);border:1px solid rgba(125,184,255,.3);border-radius:16px;padding:22px;margin:28px 0}
.inline-cta b{font-size:18px}
.inline-cta p{margin:2px 0 0;color:var(--muted);font-size:15px}
.more{max-width:740px;margin:0 auto;padding:8px 20px 56px}
.more h2{font-size:22px;margin-bottom:16px}
.more .alist{display:grid;gap:10px}
.policy section{background:var(--card);border-radius:16px;padding:8px 26px 20px;margin-top:24px}