:root{
  --bg:#070b18;--bg2:#0e1630;--fg:#eaf0ff;--muted:#8fa1c8;
  --accent:#5b8cff;--accent2:#8b5bff;--card:#121a33;--card2:#1a2444;
  --border:#2a3a5e;--ok:#35d07f;--warn:#ffb454;--code:#0a1020;
  --glow:rgba(91,140,255,.18);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,
  "Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  background:
    radial-gradient(1100px 520px at 50% -120px, var(--bg2), var(--bg) 62%);
  color:var(--fg);line-height:1.65;-webkit-font-smoothing:antialiased;
  min-height:100vh;
}
a{color:var(--accent);text-decoration:none;transition:color .15s,border-color .15s}
a:hover{color:#a6c1ff}
nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);background:rgba(7,11,24,.72);
  border-bottom:1px solid var(--border);
  padding:11px 28px;display:flex;align-items:center;gap:26px;
}
nav img{height:30px;border-radius:7px;box-shadow:0 0 14px var(--glow)}
nav .brand{font-weight:800;font-size:1.08rem;letter-spacing:.4px;
  background:linear-gradient(120deg,#a6c1ff,#b18bff);-webkit-background-clip:text;background-clip:text;color:transparent}
nav a.navlink{color:var(--muted);font-size:.92rem;padding:4px 2px}
nav a.navlink:hover{color:var(--fg)}
nav .spacer{flex:1}
.hero{text-align:center;padding:80px 24px 46px;max-width:860px;margin:0 auto}
.hero img{
  height:118px;border-radius:22px;
  box-shadow:0 16px 60px var(--glow),0 0 0 1px var(--border);
  transition:transform .3s;
}
.hero img:hover{transform:scale(1.04) rotate(-1deg)}
.hero h1{
  margin:26px 0 12px;font-size:3.4rem;letter-spacing:1.5px;font-weight:800;
  background:linear-gradient(120deg,#9db8ff,#8b5bff,#c86bff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{color:var(--muted);font-size:1.14rem;max-width:660px;margin:0 auto}
.hero .badges{margin-top:24px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.badge{
  background:linear-gradient(160deg,var(--card),var(--card2));
  border:1px solid var(--border);border-radius:999px;padding:6px 15px;
  font-size:.82rem;color:var(--muted);transition:.2s;
}
.badge:hover{color:var(--fg);border-color:var(--accent);transform:translateY(-1px)}
.hero .cta{margin-top:32px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-sub{margin-top:18px;color:var(--muted);font-size:.82rem}
.hero-sub a{color:#8b9bff}
.btn{
  display:inline-block;padding:12px 28px;border-radius:12px;font-weight:700;
  font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:.18s;
}
.btn-primary{
  background:linear-gradient(120deg,var(--accent),var(--accent2));
  color:#fff;box-shadow:0 8px 28px var(--glow);
}
.btn-primary:hover{filter:brightness(1.12);transform:translateY(-2px)}
.btn-ghost{background:var(--card);border-color:var(--border);color:var(--fg)}
.btn-ghost:hover{border-color:var(--accent);transform:translateY(-2px)}
main{max-width:1080px;margin:0 auto;padding:20px 26px 84px}
section{margin-top:52px}
h2{
  font-size:1.5rem;margin:0 0 20px;display:flex;align-items:center;gap:11px;
  font-weight:800;letter-spacing:.3px;
}
h2::before{
  content:"";width:5px;height:24px;border-radius:3px;
  background:linear-gradient(var(--accent),var(--accent2));
  box-shadow:0 0 12px var(--glow);display:inline-block;
}
h2.modtitle{font-size:1.8rem}
.modtag{
  margin:-6px 0 22px;color:var(--muted);font-size:.9rem;
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.modtag code{
  background:var(--card);border:1px solid var(--border);
  padding:3px 10px;border-radius:8px;color:#b6caff;font-weight:600;
}
.features{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.feat{
  background:linear-gradient(165deg,var(--card),var(--card2));
  border:1px solid var(--border);border-radius:16px;padding:20px;
  transition:.2s;position:relative;overflow:hidden;
}
.feat::after{
  content:"";position:absolute;inset:0;border-radius:16px;
  background:radial-gradient(200px 80px at 20% 0%,rgba(139,91,255,.14),transparent);
  opacity:0;transition:.25s;
}
.feat:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 12px 34px var(--glow)}
.feat:hover::after{opacity:1}
.feat h4{margin:0 0 7px;font-size:1.02rem;color:#d3dfff}
.feat p{margin:0;color:var(--muted);font-size:.86rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.card{
  background:linear-gradient(165deg,var(--card),var(--card2));
  border:1px solid var(--border);border-radius:16px;padding:20px;display:block;
  transition:.2s;position:relative;
}
.card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 14px 36px var(--glow)}
.card h3{
  margin:0 0 8px;font-size:1.05rem;font-weight:700;
  display:flex;align-items:center;gap:8px;
}
.card h3::before{
  content:"\f121";color:var(--accent);font-size:.85em;opacity:.9;
}
.card p{margin:0;color:var(--muted);font-size:.85rem;line-height:1.5}
table{
  width:100%;border-collapse:collapse;margin-top:14px;font-size:.92rem;
  background:rgba(18,26,51,.35);border:1px solid var(--border);
  border-radius:14px;overflow:hidden;
}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border)}
tr:last-child td{border-bottom:none}
tbody tr{transition:background .12s}
tbody tr:hover{background:rgba(91,140,255,.06)}
th{color:var(--muted);font-weight:700;background:var(--card);font-size:.82rem;letter-spacing:.4px}
td.apiname code{color:#9fc0ff;font-weight:600}
code{
  background:var(--code);padding:2px 7px;border-radius:6px;
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;font-size:.86em;color:#a9c8ff;
  border:1px solid rgba(255,255,255,.04);
}
pre{
  background:var(--code);border:1px solid var(--border);border-radius:14px;
  padding:16px 18px;overflow-x:auto;font-size:.85rem;
  box-shadow:inset 0 0 30px rgba(91,140,255,.04);
}
pre code{background:none;padding:0;border:none}
.desc{color:var(--muted);font-size:.88rem;line-height:1.6}
td .desc{font-size:.88rem}
.back{margin-top:34px;display:inline-block;color:var(--muted);padding:8px 16px;border:1px solid var(--border);border-radius:10px;transition:.2s}
.back:hover{color:var(--fg);border-color:var(--accent);transform:translateX(-3px)}
.ret{
  display:inline-block;min-width:22px;text-align:center;padding:2px 8px;
  border-radius:20px;background:#141a2e;border:1px solid var(--border);
  color:#8b9bff;font-size:.78rem;font-weight:700;
}
.dl-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.dl-group{
  background:rgba(255,255,255,.02);border:1px solid var(--border);
  border-radius:16px;padding:20px 22px;
}
.dl-group h3{margin:0;font-size:1.08rem}
.dl-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.dl-badge{font-size:.72rem;font-weight:800;padding:3px 10px;border-radius:7px;color:#0b1020;background:var(--ok)}
.dl-head .btn{margin-left:auto;padding:8px 18px;font-size:.82rem}
.dl-group .desc{margin:0 0 12px;color:var(--muted);font-size:.85rem;line-height:1.55}
.dl-items{list-style:none;margin:0;padding:0}
.dl-items li{padding:6px 0 6px 20px;position:relative;color:var(--fg);font-size:.86rem;border-bottom:1px dashed var(--border)}
.dl-items li:last-child{border-bottom:none}
.dl-items li:before{content:'·';position:absolute;left:6px;color:#8b9bff}
.cr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.cr{background:rgba(255,255,255,.02);border:1px solid var(--border);border-radius:12px;padding:14px 16px;transition:.2s}
.cr:hover{border-color:var(--accent)}
.cr h4{margin:0 0 6px;font-size:.9rem;color:#9fb4ff}
.cr p{margin:0;color:var(--muted);font-size:.83rem;line-height:1.55}
.comps{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.comp{
  display:flex;gap:15px;align-items:flex-start;
  background:rgba(255,255,255,.02);border:1px solid var(--border);
  border-radius:14px;padding:16px 18px;transition:.2s;
}
.comp:hover{border-color:var(--accent);transform:translateY(-3px)}
.comp .ic{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;color:#fff;
  font-weight:800;font-size:1.2rem;box-shadow:0 6px 18px rgba(0,0,0,.3);
}
.comp .ct{min-width:0}
.comp h4{margin:0;font-size:1rem;display:inline}
.comp .role{display:inline-block;margin-left:8px;font-size:.72rem;color:var(--muted);border:1px solid var(--border);border-radius:20px;padding:1px 9px}
.comp p{margin:7px 0 0;color:var(--muted);font-size:.84rem;line-height:1.5}
.langsel{margin-left:8px}
.langsel select{
  background:var(--card);color:var(--fg);border:1px solid var(--border);
  border-radius:8px;padding:4px 8px;font-size:.82rem;cursor:pointer;
}
footer{
  text-align:center;color:var(--muted);font-size:.8rem;padding:30px;
  border-top:1px solid var(--border);
  background:rgba(7,11,24,.6);
}
footer a{color:#8b9bff}
@media(max-width:760px){
  .dl-wrap{grid-template-columns:1fr}
}
@media(max-width:640px){
  .hero h1{font-size:2.3rem}
  .hero{padding-top:52px}
  nav{gap:12px}
  nav .navlink{display:none}
  main{padding:16px 16px 64px}
  table{font-size:.84rem}
}
/* RTL 语言（阿拉伯语 ar、波斯语 fa）覆写 */
[dir="rtl"] body{direction:rtl}
[dir="rtl"] nav{flex-direction:row-reverse}
[dir="rtl"] .hero p,[dir="rtl"] .hero h1{text-align:right}
[dir="rtl"] h2{flex-direction:row-reverse}
[dir="rtl"] th,[dir="rtl"] td{text-align:right}
[dir="rtl"] .back:hover{transform:translateX(3px)}
[dir="rtl"] .comp .role{margin-left:0;margin-right:8px}
[dir="rtl"] .dl-head .btn{margin-left:0;margin-right:auto}