/* ============================================================
   新伊甸 · 全站设计系统 v7「第二块屏幕」
   深空实景 + 全息窗 + 唯一入口
   ============================================================ */

:root{
  --bg:#04070d;
  --ink:#eaf2fa;
  --dim:#9db0c4;
  --mute:#7f92a6;
  --amber:#f6a81c;
  --amber-2:#ffd479;
  --cyan:#5fe3ff;
  --cyan-soft:#a9f0ff;
  --red:#ff6b6b;
  --green:#4ade80;
  --line:rgba(125,180,225,.14);
  --line-2:rgba(125,180,225,.26);
  --wrap:1280px;
  --mono:"Cascadia Mono","Consolas","SFMono-Regular",monospace;
  --head:"Segoe UI","Microsoft YaHei UI","Microsoft YaHei","PingFang SC",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--head);font-size:15px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
ul,ol{margin:0}
em{font-style:normal}
::selection{background:rgba(246,168,28,.28);color:#fff}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 5vw}
.mono{font-family:var(--mono)}
.muted{color:var(--mute)}
.small{font-size:12.5px}

/* ---------------- 全站星空 ---------------- */
.cosmos{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;background:#04070d}
.cosmos .sky{
  position:absolute;inset:-5%;
  background:url("./cosmos.jpg") 50% 48% / cover no-repeat;
  transform-origin:50% 56%;
  filter:saturate(.96) brightness(.9) contrast(1.04);
  animation:breathe 60s ease-in-out infinite alternate;
  will-change:transform;
}
@keyframes breathe{0%{transform:scale(1.01)}100%{transform:scale(1.06)}}
.cosmos .aura{
  position:absolute;inset:0;
  background:
    radial-gradient(56% 44% at 78% 16%,rgba(0,140,190,.18),transparent 66%),
    radial-gradient(48% 40% at 8% 82%,rgba(246,168,28,.05),transparent 70%);
  animation:aura 26s ease-in-out infinite alternate;
}
@keyframes aura{0%{opacity:.5}100%{opacity:1}}
.cosmos::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 100% at 55% 42%,rgba(4,8,15,.12) 0%,rgba(4,8,15,.46) 68%,rgba(4,8,15,.76) 100%),
    linear-gradient(180deg,rgba(4,8,15,.6) 0%,rgba(4,8,15,.34) 26%,rgba(4,8,15,.44) 60%,rgba(4,8,15,.62) 100%);
}
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/></svg>");
}
@media (prefers-reduced-motion: reduce){
  .cosmos .sky,.cosmos .aura,.tilt,.sweep,.btn.primary::after{animation:none!important}
}
main,footer{position:relative;z-index:2}

/* ---------------- header ---------------- */
header.site-head{
  position:fixed;top:0;left:0;right:0;z-index:60;padding:0 5vw;
  background:linear-gradient(180deg,rgba(4,7,13,.82),rgba(4,7,13,.26) 62%,transparent);
  backdrop-filter:blur(8px);
}
.site-head .nav-inner{display:flex;align-items:center;gap:30px;height:76px;max-width:var(--wrap);margin:0 auto}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand-mark{width:25px;height:25px;flex:none;
  background:conic-gradient(from 200deg,var(--cyan),var(--amber),var(--cyan));
  clip-path:polygon(50% 0,100% 26%,100% 74%,50% 100%,0 74%,0 26%);
  filter:drop-shadow(0 0 10px rgba(95,227,255,.45))}
.brand-text{display:flex;align-items:baseline;gap:8px;font-size:15px}
.brand-text .sep{color:rgba(140,165,185,.5);font-weight:400}
.brand-text .sub{color:var(--dim);font-weight:600;font-size:14px}
.nav{margin-left:auto;display:flex;align-items:center;gap:30px;font-size:13px;color:var(--dim)}
.nav a{transition:color .16s;white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--ink)}
.nav a.active{position:relative}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:1px;
  background:linear-gradient(90deg,transparent,var(--amber),transparent)}
.nav .nav-alert:hover,.nav .nav-alert.active{color:#ffb3b3}
.nav .nav-alert.active::after{background:linear-gradient(90deg,transparent,var(--red),transparent)}
.status{display:inline-flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.08em;
  color:#9fe9c8;border:1px solid rgba(74,222,128,.28);background:rgba(74,222,128,.07);
  padding:5px 12px;border-radius:999px;white-space:nowrap}
.status i{width:5px;height:5px;border-radius:50%;background:var(--green);box-shadow:0 0 9px var(--green);
  animation:blip 2.4s ease-in-out infinite}
@keyframes blip{0%,100%{opacity:1}50%{opacity:.3}}

/* ---------------- 通用 ---------------- */
.kicker{display:flex;align-items:center;gap:12px;margin:0 0 20px;
  font-family:var(--mono);font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:rgba(95,227,255,.86)}
.kicker::before{content:"";width:34px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan))}
.kicker.amber{color:rgba(255,212,121,.9)}
.kicker.amber::before{background:linear-gradient(90deg,transparent,var(--amber))}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:54px;padding:0 30px;
  border-radius:8px;font-size:15px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  transition:transform .18s,box-shadow .18s,border-color .18s,color .18s;position:relative;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:linear-gradient(180deg,var(--amber-2),var(--amber));color:#1b1203;border:none;
  box-shadow:0 18px 50px rgba(246,168,28,.3),0 0 0 1px rgba(255,212,121,.4) inset;overflow:hidden}
.btn.primary:hover{box-shadow:0 22px 62px rgba(246,168,28,.44)}
.btn.primary::after{content:"";position:absolute;top:-20%;left:-70%;width:42%;height:140%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);
  transform:skewX(-18deg);animation:sheen 6s ease-in-out infinite}
@keyframes sheen{0%,52%{left:-70%}82%,100%{left:140%}}
.btn .os{font-size:11px;font-weight:500;opacity:.66;letter-spacing:.02em}
.btn.amber{background:linear-gradient(180deg,#ffb1a1,#ff6b6b);color:#240b0b;border:none;
  box-shadow:0 18px 50px rgba(255,107,107,.24)}
.btn.ghost{background:rgba(5,10,17,.3);border:1px solid rgba(125,180,225,.34);color:#dbe7f2;backdrop-filter:blur(6px)}
.btn.ghost:hover{border-color:rgba(95,227,255,.6);color:var(--cyan)}
.btn.sm{height:40px;padding:0 18px;font-size:12.5px;border-radius:7px}
.btn.sm.primary{box-shadow:none}

/* ---------------- hero ---------------- */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(4,7,13,.84) 0%,rgba(4,7,13,.58) 30%,rgba(4,7,13,.14) 54%,rgba(4,7,13,0) 76%),
    linear-gradient(180deg,rgba(4,7,13,.35) 0%,rgba(4,7,13,0) 24%,rgba(4,7,13,0) 78%,rgba(4,7,13,.5) 100%);
}
.hero .wrap{position:relative;z-index:6}
.hero-copy{position:relative;z-index:6;max-width:560px;padding:86px 0 70px}
.hero h1{margin:0 0 26px;font-size:clamp(54px,7.1vw,118px);line-height:.98;font-weight:900;letter-spacing:-.035em;
  text-shadow:0 18px 60px rgba(0,0,0,.7)}
.hero h1 .hl{display:block;background:linear-gradient(180deg,#ffe2a3 0%,var(--amber-2) 26%,var(--amber) 62%,#ff8a00 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 30px rgba(246,168,28,.34))}
.hero .sub{margin:0 0 16px;max-width:460px;font-size:clamp(17px,1.5vw,20px);line-height:1.75;
  color:#d6e3ef;font-weight:600;letter-spacing:.01em}
.hero .sub b{color:var(--amber-2);font-weight:700}
.hero .hero-note{margin:0 0 18px;max-width:480px;font-size:13px;line-height:1.8;color:#9fb3c7;letter-spacing:.04em}
.hero .lead{max-width:440px;font-size:13.5px;line-height:1.9;color:#93a7bb;margin-bottom:32px;
  text-shadow:0 2px 14px rgba(0,0,0,.85)}
.hero .lead span{color:#cfdae6}
.hero .cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:22px}
.trust{display:block;font-size:11.5px;color:#8ea2b6;line-height:2;letter-spacing:.02em}

/* 全息窗 */
.stage{position:absolute;top:0;right:0;bottom:0;width:54vw;z-index:2;pointer-events:none}
.stage::before{content:"";position:absolute;right:-2%;top:10%;width:78%;height:70%;z-index:0;
  background:radial-gradient(closest-side,rgba(0,150,210,.22),rgba(0,120,180,.08) 55%,transparent 74%);
  filter:blur(46px);pointer-events:none}
.handle{position:absolute;will-change:transform;
  transform:translate3d(calc(var(--mx,0) * var(--k,14px)),calc(var(--my,0) * var(--k,10px)),0);
  transition:transform .5s cubic-bezier(.22,.61,.36,1)}
.tilt{position:relative;transform-style:preserve-3d}
.win{position:relative;border-radius:11px;overflow:hidden;background:#060b12;
  border:1px solid rgba(125,200,235,.22);
  box-shadow:0 60px 130px rgba(0,0,0,.78),0 0 80px rgba(0,140,200,.12),0 0 0 1px rgba(255,255,255,.03) inset}
.win img{width:100%;height:auto}
.win .glass{position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(118deg,rgba(255,255,255,.10) 0%,rgba(255,255,255,.02) 16%,transparent 34%),
    linear-gradient(180deg,transparent 62%,rgba(4,8,14,.42) 100%)}
.win .sweep{position:absolute;left:0;right:0;top:-45%;height:34%;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(95,227,255,.10) 45%,transparent);
  animation:sweep 9s linear infinite;mix-blend-mode:screen}
@keyframes sweep{0%{transform:translateY(0)}100%{transform:translateY(430%)}}
.br{position:absolute;width:22px;height:22px;z-index:3;border:1px solid rgba(95,227,255,.55)}
.br.tl{top:-8px;left:-8px;border-right:0;border-bottom:0;border-radius:3px 0 0 0}
.br.tr{top:-8px;right:-8px;border-left:0;border-bottom:0;border-radius:0 3px 0 0}
.br.bl{bottom:-8px;left:-8px;border-right:0;border-top:0;border-radius:0 0 0 3px}
.br.br2{bottom:-8px;right:-8px;border-left:0;border-top:0;border-radius:0 0 3px 0}
.hud{position:absolute;left:2px;right:2px;bottom:calc(100% + 13px);z-index:4;display:flex;justify-content:space-between;gap:20px;
  font-family:var(--mono);font-size:9px;letter-spacing:.22em;text-transform:uppercase;color:rgba(160,215,235,.62)}
.hud b{color:rgba(95,227,255,.85);font-weight:500}

.main{top:16.5%;right:2%;width:100%;z-index:3}
.main .tilt{animation:floatMain 11s ease-in-out infinite}
.main .win{animation:winIn .9s cubic-bezier(.2,.7,.2,1) both}
@keyframes floatMain{
  0%,100%{transform:perspective(2200px) rotateY(-8deg) rotateX(2deg) translateY(-4px)}
  50%{transform:perspective(2200px) rotateY(-8deg) rotateX(2deg) translateY(8px)}
}
@keyframes winIn{from{transform:translateY(22px) scale(.985)}to{transform:none}}

.back{top:9%;right:5%;width:76%;z-index:1;opacity:.62;
  filter:blur(1.8px) brightness(.68) saturate(.82)}
.back .win{box-shadow:0 40px 90px rgba(0,0,0,.7)}
.back .tilt{animation:floatBack 13s ease-in-out infinite}
@keyframes floatBack{
  0%,100%{transform:perspective(2200px) rotateY(-8deg) rotateX(2deg) translateY(4px)}
  50%{transform:perspective(2200px) rotateY(-8deg) rotateX(2deg) translateY(-6px)}
}

.mini{right:2%;bottom:3.5%;width:30%;z-index:4}
.mini .tilt{animation:floatMini 10s ease-in-out infinite}
.mini .win{box-shadow:0 34px 80px rgba(0,0,0,.72),0 0 46px rgba(0,140,200,.1)}
.mini .glass{background:linear-gradient(118deg,rgba(255,255,255,.09) 0%,transparent 30%)}
@keyframes floatMini{
  0%,100%{transform:perspective(1600px) rotateY(-11deg) rotateX(3deg) translateY(-3px)}
  50%{transform:perspective(1600px) rotateY(-11deg) rotateX(3deg) translateY(5px)}
}

.stage .alert{left:1%;bottom:7%;width:296px;z-index:4;--k:14px}
.alert-card{border:1px solid rgba(255,107,107,.32);border-radius:10px;padding:14px 16px;
  background:linear-gradient(180deg,rgba(20,12,14,.92),rgba(8,10,15,.94));
  backdrop-filter:blur(12px);box-shadow:0 26px 60px rgba(0,0,0,.7),0 0 40px rgba(255,107,107,.08)}
.alert-top{display:flex;align-items:center;gap:7px;font-size:10px;letter-spacing:.14em;color:#ff9b9b;text-transform:uppercase}
.alert-top i{width:6px;height:6px;border-radius:50%;background:var(--red);box-shadow:0 0 10px var(--red);animation:blip 1.6s infinite}
.alert-top em{margin-left:auto;font-style:normal;color:rgba(255,155,155,.55);letter-spacing:.06em;font-size:9px}
.alert-main{margin-top:7px;font-family:var(--mono);font-size:21px;letter-spacing:.06em;color:#fff5f5}
.alert-sub{margin-top:2px;font-size:11px;color:#a99a9c}
.alert-bars{display:flex;gap:3px;align-items:flex-end;height:16px;margin-top:9px;opacity:.8}
.alert-bars i{flex:1;background:linear-gradient(180deg,rgba(255,107,107,.85),rgba(255,107,107,.2));border-radius:1px}
.alert-bars i:nth-child(1){height:32%}.alert-bars i:nth-child(2){height:58%}
.alert-bars i:nth-child(3){height:42%}.alert-bars i:nth-child(4){height:76%}
.alert-bars i:nth-child(5){height:54%}.alert-bars i:nth-child(6){height:92%}
.alert-bars i:nth-child(7){height:63%}.alert-bars i:nth-child(8){height:47%}

.hero-foot{position:absolute;left:0;right:0;bottom:0;z-index:6;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px 5vw 18px;border-top:1px solid rgba(125,180,225,.1);
  font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:rgba(140,165,185,.62)}
.hero-foot .sc{display:inline-flex;align-items:center;gap:10px;color:rgba(190,215,235,.78)}
.hero-foot .sc .bar{display:block;width:1px;height:26px;background:linear-gradient(180deg,var(--cyan),transparent);
  position:relative;overflow:hidden}
.hero-foot .sc .bar::after{content:"";position:absolute;top:-100%;left:0;width:1px;height:100%;
  background:#fff;animation:down 2.2s ease-in-out infinite}
@keyframes down{0%{top:-100%}60%,100%{top:100%}}
.hero-foot .st{display:flex;gap:26px}
.hero-foot .st b{color:rgba(210,232,246,.85);font-weight:500}

/* ---------------- sections ---------------- */
.section{position:relative;max-width:var(--wrap);margin:0 auto;padding:104px 24px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:42px}
.section-head h2{font-size:clamp(28px,3.6vw,46px);letter-spacing:-.02em;text-shadow:0 6px 30px rgba(0,0,0,.8)}
.section-head p{margin-top:10px;max-width:620px;color:var(--dim);font-size:14px;line-height:1.9;text-shadow:0 2px 12px rgba(0,0,0,.8)}
.idx{font-family:var(--mono);font-size:10px;letter-spacing:.24em;color:rgba(140,165,185,.7);white-space:nowrap}

/* feature rows */
.feature-row{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:center;margin-bottom:84px}
.feature-row.flip{grid-template-columns:1.15fr 1fr}
.feature-row.flip .feature-copy{order:2}
.feature-row.flip .feature-shot{order:1}
.feature-copy h3{font-size:clamp(24px,2.4vw,32px);margin:0 0 14px;letter-spacing:-.01em}
.feature-copy .tagline{font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;
  color:rgba(95,227,255,.78);margin-bottom:12px}
.feature-row:nth-child(2n) .feature-copy .tagline{color:rgba(255,212,121,.78)}
.feature-copy p{color:#9db0c4;font-size:14px;line-height:1.95;max-width:460px;text-shadow:0 2px 14px rgba(0,0,0,.85)}
.feature-copy p b{color:#dfeaf4;font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px}
.chip{font-size:11px;padding:4px 10px;border-radius:4px;border:1px solid var(--line);color:#93a7bb;background:rgba(255,255,255,.02)}

.shot-frame{position:relative;border-radius:12px;overflow:hidden;border:1px solid rgba(125,200,235,.2);
  background:#060b12;box-shadow:0 40px 100px rgba(0,0,0,.7),0 0 60px rgba(0,140,200,.08);
  transition:transform .3s ease,border-color .3s ease}
.shot-frame:hover{transform:translateY(-4px);border-color:rgba(95,227,255,.4)}
.shot-frame img{width:100%;height:auto}
.shot-frame::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(118deg,rgba(255,255,255,.07) 0%,transparent 26%),
             linear-gradient(180deg,transparent 74%,rgba(4,8,14,.3) 100%)}
.shot-cap{display:flex;align-items:center;justify-content:space-between;gap:12px;position:relative;z-index:2;
  padding:12px 16px;border-top:1px solid var(--line);background:rgba(10,16,24,.9);font-size:11.5px;color:var(--mute)}
.shot-cap b{color:#cfe0ee;font-weight:600}

/* detail wall */
.wall{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.wall-item{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:#060b12;
  transition:transform .25s,border-color .25s}
.wall-item:hover{transform:translateY(-3px);border-color:rgba(95,227,255,.35)}
.wall-item img{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.96}
.wall-item .cap{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-top:1px solid var(--line);font-size:11.5px;color:var(--mute)}
.wall-item .cap b{color:#cfe0ee;font-weight:600}
.wall-note{margin-top:16px;font-size:11px;color:rgba(140,160,178,.75);line-height:1.8}

/* tools */
.tools{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.tool{position:relative;border:1px solid var(--line);border-radius:16px;padding:30px;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.006));
  backdrop-filter:blur(8px);transition:transform .25s,border-color .25s}
.tool:hover{transform:translateY(-3px);border-color:rgba(95,227,255,.32)}
.tool::before{content:"";position:absolute;inset:0 0 auto;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent)}
.tool.alerts::before{background:linear-gradient(90deg,transparent,var(--red),transparent)}
.tool.alerts:hover{border-color:rgba(255,107,107,.3)}
.tool h3{font-size:23px;margin-bottom:4px}
.tool .tagline{font-size:12px;color:var(--mute)}
.tool .desc{margin:16px 0 0;font-size:13px;line-height:1.9;color:#9db0c4}
.tool .acts{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.tool .chips{margin-top:18px}

/* values */
.values{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.value{padding:24px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.02)}
.value .ic{width:22px;height:22px;margin-bottom:14px;border-radius:50%;border:1px solid rgba(95,227,255,.4);
  background:radial-gradient(circle at 50% 50%,rgba(95,227,255,.22),transparent 70%);position:relative}
.value .ic::after{content:"";position:absolute;left:6px;top:6px;width:7px;height:3px;
  border-left:1.5px solid var(--cyan);border-bottom:1.5px solid var(--cyan);transform:rotate(-45deg)}
.value h4{font-size:14.5px;margin-bottom:6px}
.value p{font-size:12px;line-height:1.85;color:var(--mute);text-shadow:0 2px 12px rgba(0,0,0,.8)}

/* download */
.download{position:relative;border:1px solid rgba(246,168,28,.22);border-radius:16px;padding:38px;
  background:
    radial-gradient(700px 260px at 8% 0%,rgba(246,168,28,.1),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.008));
  backdrop-filter:blur(10px);overflow:hidden}
.download::before{content:"";position:absolute;inset:0 0 auto;height:1px;
  background:linear-gradient(90deg,transparent,var(--amber),transparent)}
.download h2{font-size:clamp(26px,3.2vw,40px);margin:0 0 8px}
.download .intro{color:var(--dim);font-size:13.5px;line-height:1.9;margin:0 0 26px;max-width:620px}
.dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.dl-card{border:1px solid var(--line);border-radius:12px;padding:24px;background:rgba(5,10,17,.55)}
.dl-card h3{font-size:18px;margin-bottom:4px}
.dl-card .meta{color:var(--mute);font-size:12px;margin:0 0 18px}
.dl-card .actions{display:flex;gap:10px;flex-wrap:wrap}
.dl-note{margin:16px 0 0;font-size:10.5px;color:rgba(140,160,178,.78);line-height:1.8}
.download .foot-note{margin:18px 0 0;font-size:11px;color:rgba(140,160,178,.72)}

/* closing */
.closing{margin:44px 0 0;border:1px solid var(--line);border-radius:12px;padding:22px 26px;
  display:flex;justify-content:space-between;gap:18px;align-items:center;flex-wrap:wrap;
  background:rgba(255,255,255,.02);backdrop-filter:blur(6px)}
.closing b{font-size:14px}
.closing p{margin:4px 0 0;color:var(--mute);font-size:12px;line-height:1.8}

/* ---------------- subpage hero ---------------- */
.page-hero{position:relative;max-width:var(--wrap);margin:0 auto;padding:150px 24px 50px;
  display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.page-hero .tag{display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:rgba(95,227,255,.85);
  border:1px solid rgba(95,227,255,.3);background:rgba(95,227,255,.06);padding:5px 12px;border-radius:999px}
.page-hero.alert .tag{color:#ffb3b3;border-color:rgba(255,107,107,.32);background:rgba(255,107,107,.07)}
.page-hero h1{font-size:clamp(36px,5vw,68px);line-height:1.08;letter-spacing:-.03em;margin-bottom:20px}
.page-hero h1 em{color:var(--amber-2);background:linear-gradient(180deg,#ffe2a3,var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.page-hero.alert h1 em{background:linear-gradient(180deg,#ffc4c4,#ff6b6b);-webkit-background-clip:text;background-clip:text;color:transparent}
.page-hero p{max-width:520px;color:#a8bacb;font-size:14.5px;line-height:1.95;text-shadow:0 2px 14px rgba(0,0,0,.85)}
.page-hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.page-hero .stat-row{display:flex;gap:26px;margin-top:30px;flex-wrap:wrap}
.page-hero .stat b{display:block;font-family:var(--mono);font-size:22px;color:#eaf2fa;letter-spacing:.02em}
.page-hero .stat span{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.page-shot{position:relative}
.page-shot .shot-frame{transform:perspective(1600px) rotateY(-6deg) rotateX(2deg)}
.page-shot .alert-card{max-width:340px;margin:0 auto;transform:perspective(1400px) rotateY(-6deg) rotateX(2deg)}

/* alerts 雷达示意 */
.alert-visual{position:relative;display:grid;place-items:center;min-height:400px;overflow:hidden}
.radar{position:absolute;width:430px;height:430px;max-width:94%;border-radius:50%;
  background:repeating-radial-gradient(circle,rgba(255,107,107,.26) 0 1px,transparent 1px 48px);
  -webkit-mask-image:radial-gradient(circle,#000 20%,transparent 74%);
  mask-image:radial-gradient(circle,#000 20%,transparent 74%);
  opacity:1}
.radar::before{content:"";position:absolute;inset:7%;border:1px solid rgba(255,107,107,.22);border-radius:50%}
.radar::after{content:"";position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(from 0deg,transparent 0deg,rgba(255,107,107,.42) 10deg,transparent 34deg,transparent 360deg);
  animation:radarSweep 8s linear infinite;
  -webkit-mask-image:radial-gradient(circle,transparent 22%,#000 38%,transparent 74%);
  mask-image:radial-gradient(circle,transparent 22%,#000 38%,transparent 74%)}
@keyframes radarSweep{to{transform:rotate(360deg)}}
.alert-visual .alert-card{width:330px;position:relative;z-index:2;box-shadow:0 30px 80px rgba(0,0,0,.75),0 0 70px rgba(255,107,107,.12)}

/* feature grid (subpages) */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.feature{padding:22px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.02);
  transition:transform .22s,border-color .22s}
.feature:hover{transform:translateY(-2px);border-color:rgba(95,227,255,.3)}
.feature h4{font-size:14.5px;margin-bottom:7px;color:var(--cyan-soft)}
.feature p{font-size:12.5px;line-height:1.85;color:#8fa3b8}
.feature.alert h4{color:#ffb3b3}
.feature.alert:hover{border-color:rgba(255,107,107,.3)}

.ticks{list-style:none;padding:0;display:grid;gap:10px}
.ticks li{position:relative;padding-left:20px;color:#9db0c4;font-size:13px;line-height:1.8}
.ticks li::before{content:"";position:absolute;left:2px;top:9px;width:5px;height:5px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px rgba(95,227,255,.7)}
.ticks.amber li::before{background:var(--amber);box-shadow:0 0 8px rgba(246,168,28,.7)}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;counter-reset:step}
.step{position:relative;padding:24px 22px 22px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.02);counter-increment:step}
.step::before{content:"0" counter(step);position:absolute;right:18px;top:12px;
  font-family:var(--mono);font-size:26px;letter-spacing:.02em;color:rgba(95,227,255,.28)}
.step h4{font-size:14.5px;margin-bottom:7px}
.step p{font-size:12.5px;line-height:1.85;color:#8fa3b8}

.faq{display:grid;gap:10px}
.faq details{border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.02);padding:16px 20px}
.faq summary{cursor:pointer;font-size:13.5px;font-weight:600;color:#dfeaf4;list-style:none;position:relative;padding-right:24px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:0;color:var(--cyan);font-family:var(--mono)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin-top:10px;font-size:12.5px;line-height:1.9;color:#8fa3b8}

/* ---------------- docs ---------------- */
.doc-wrap{max-width:1000px;margin:132px auto 60px;padding:46px 50px 56px;
  border:1px solid var(--line);border-radius:16px;
  background:linear-gradient(180deg,rgba(6,11,18,.64),rgba(6,11,18,.44));
  backdrop-filter:blur(10px);box-shadow:0 40px 120px rgba(0,0,0,.4)}
.doc-wrap h1{font-size:clamp(34px,4vw,54px);margin-bottom:10px}
.doc-wrap .sub{color:var(--dim);font-size:14.5px;margin-bottom:28px}
.doc-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 40px}
.doc-tab{padding:7px 16px;border-radius:999px;border:1px solid var(--line);color:var(--dim);font-size:12px;
  background:rgba(255,255,255,.02)}
.doc-tab:hover{border-color:rgba(95,227,255,.4);color:var(--ink)}
.doc-tab.on{border-color:rgba(95,227,255,.5);color:var(--cyan);background:rgba(95,227,255,.08)}
.doc-tab.amber.on{border-color:rgba(246,168,28,.5);color:var(--amber-2);background:rgba(246,168,28,.08)}
.doc-wrap h2{font-size:clamp(24px,2.8vw,34px);margin:56px 0 18px;padding-top:22px;
  border-top:1px solid var(--line);display:flex;align-items:center;gap:12px}
.doc-wrap h2::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.doc-wrap h3{font-size:16px;margin:30px 0 12px;color:var(--cyan-soft)}
.doc-wrap p,.doc-wrap li{color:#9db0c4;font-size:13.5px;line-height:1.95}
.doc-wrap ol,.doc-wrap ul{padding-left:22px;margin:0 0 16px}
.doc-wrap li{margin-bottom:6px}
.doc-wrap b{color:#dfeaf4}
.doc-wrap details{border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.02);padding:14px 18px;margin-bottom:9px}
.doc-wrap summary{cursor:pointer;font-size:13.5px;font-weight:600;color:#dfeaf4;list-style:none;position:relative;padding-right:24px}
.doc-wrap summary::-webkit-details-marker{display:none}
.doc-wrap summary::after{content:"+";position:absolute;right:0;top:0;color:var(--cyan);font-family:var(--mono)}
.doc-wrap details[open] summary::after{content:"−"}
.doc-wrap details p{margin-top:9px;font-size:12.5px}
.tip{margin:16px 0 24px;padding:12px 16px;border-left:2px solid var(--cyan);background:rgba(95,227,255,.06);
  border-radius:0 8px 8px 0;font-size:12px;color:#9db0c4}
.tip.amber{border-left-color:var(--amber);background:rgba(246,168,28,.06)}

/* ---------------- legal ---------------- */
.page-narrow{max-width:840px;margin:132px auto 60px;padding:46px 50px 56px;
  border:1px solid var(--line);border-radius:16px;
  background:linear-gradient(180deg,rgba(6,11,18,.64),rgba(6,11,18,.44));
  backdrop-filter:blur(10px);box-shadow:0 40px 120px rgba(0,0,0,.4)}
.page-narrow h1{font-size:clamp(32px,4vw,50px);margin-bottom:8px}
.page-narrow .updated{color:var(--mute);font-size:12px;margin-bottom:36px}
.page-narrow h2{font-size:clamp(20px,2.4vw,26px);margin:38px 0 12px;padding-top:20px;border-top:1px solid var(--line)}
.page-narrow p,.page-narrow li{color:#9db0c4;font-size:13.5px;line-height:1.95}
.page-narrow ul{padding-left:20px;margin:10px 0}
.page-narrow li{margin-bottom:6px}
.page-narrow b{color:#dfeaf4}

/* ---------------- credits ---------------- */
.credits-section{padding-top:64px;padding-bottom:0}
.credits{border-top:1px solid var(--line);padding-top:26px}
.credits .kicker{margin-bottom:22px}
.credits-grid{display:flex;align-items:center;flex-wrap:wrap;gap:14px}
.credit-item{
  display:block;width:52px;height:52px;flex:none;border-radius:12px;
  color:inherit;text-decoration:none;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.credit-item:hover,.credit-item:focus-visible{
  transform:translateY(-3px);
  border-color:rgba(95,227,255,.4);
  box-shadow:0 10px 26px rgba(0,0,0,.4),0 0 0 1px rgba(95,227,255,.12);
  outline:none;
}
.credit-icon{
  width:100%;height:100%;border-radius:12px;overflow:hidden;
  display:grid;place-items:center;
  background:radial-gradient(120% 120% at 30% 20%,#0a0f16,#04060a 70%);
  border:1px solid rgba(140,170,200,.18);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.025),0 4px 14px rgba(0,0,0,.25);
}
.credit-icon img{width:100%;height:100%;object-fit:contain;display:block}
.credit-icon.inset img{padding:7px}
.credit-icon svg{width:30px;height:30px;display:block}

/* ---------------- footer ---------------- */
footer.site-foot{position:relative;z-index:2;margin-top:100px;border-top:1px solid rgba(125,180,225,.12);
  padding:38px 5vw 42px;font-size:11.5px;color:#8296aa;line-height:2;text-shadow:0 2px 12px rgba(0,0,0,.7)}
.foot-inner{max-width:var(--wrap);margin:0 auto;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:flex-start;gap:12px}
.foot-brand .brand-mark{width:20px;height:20px;margin-top:2px}
.foot-brand b{font-size:13px;color:#cfdae6}
.foot-brand p{font-size:11px;color:var(--mute)}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;font-size:11.5px}
.foot-links a:hover{color:var(--cyan)}
.foot-meta{max-width:var(--wrap);margin:22px auto 0;padding-top:18px;border-top:1px solid rgba(125,180,225,.08);
  font-size:10.5px;line-height:1.9;color:rgba(130,150,170,.8)}
.placeholder{color:var(--amber-2)}
.foot-meta .beian-icon{width:auto;height:15px;display:inline-block;vertical-align:-3px;margin-right:5px}

/* ---------------- 响应式 ---------------- */
@media(max-width:1180px){
  .hero-copy{max-width:520px}
  .stage{width:52vw}
  .main{width:98%;right:2%}
  .back{width:78%}
}
@media(max-width:1024px){
  .hero{display:block;min-height:0;padding:96px 0 0;overflow:visible}
  .hero::before{background:
    linear-gradient(180deg,rgba(4,7,13,.9) 0%,rgba(4,7,13,.62) 34%,rgba(4,7,13,.18) 68%,rgba(4,7,13,.55) 100%)}
  .hero .wrap{padding:0 5vw}
  .hero-copy{max-width:680px;padding:56px 0 10px}
  .stage{position:relative;width:100%;height:auto;padding:0 5vw 64px;z-index:2}
  .stage::before{display:none}
  .handle{position:relative;transform:none!important;animation:none!important}
  .main{position:relative;top:0;right:0;width:100%;margin:0;animation:none}
  .main .win{animation:none}
  .main .tilt{transform:none;animation:none}
  .back{display:none}
  .mini{display:none}
  .stage .alert{position:relative;left:0;bottom:0;width:min(300px,74%);margin:-46px 0 0 6%;animation:none}
  .hero-foot{position:relative;padding:16px 5vw}
  .hero-foot .st{display:none}

  .section{padding-top:80px}
  .feature-row,.feature-row.flip{grid-template-columns:1fr;gap:26px;margin-bottom:64px}
  .feature-row.flip .feature-copy{order:1}
  .feature-row.flip .feature-shot{order:2}
  .feature-copy p{max-width:none}
  .wall{grid-template-columns:1fr}
  .tools,.dl-grid{grid-template-columns:1fr}
  .values{grid-template-columns:1fr 1fr}
  .feature-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}

  .page-hero{grid-template-columns:1fr;gap:34px;padding-top:130px}
  .page-hero p{max-width:none}
  .page-shot .shot-frame{transform:none}
  .page-shot .alert-card{transform:none;max-width:380px}
  .doc-wrap,.page-narrow{margin:120px 24px 60px}
}
@media(max-width:900px){
  .nav{display:none}
}
@media(max-width:620px){
  .status{font-size:10px;padding:4px 9px;letter-spacing:.03em;gap:6px}
}
@media(max-width:340px){
  .brand-text .sep,.brand-text .sub{display:none}
  .status{font-size:9.5px;padding:4px 8px}
}
@media(max-width:620px){
  .site-head .nav-inner{height:70px;gap:12px}
  .credits-grid{gap:8px}
  .credit-item{width:clamp(38px,12vw,44px);height:clamp(38px,12vw,44px);border-radius:10px}
  .credit-icon{border-radius:10px}
  .brand-text{font-size:13.5px}
  .brand-text .sub{font-size:13px}
  .hero h1{font-size:clamp(48px,13.5vw,72px)}
  .hero .sub{font-size:16px}
  .hero .lead{font-size:12.5px}
  .btn{height:50px;padding:0 22px;font-size:14px}
  .trust{font-size:12px;line-height:2}
  .hero-copy{padding-top:44px}
  .stage .alert{width:min(280px,82%);margin:-40px 0 0 4%}
  .section{padding-top:64px}
  .section-head{margin-bottom:30px}
  .values{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .wall-item img{aspect-ratio:16/11}
  .download{padding:24px}
  .doc-wrap,.page-narrow{margin:110px 14px 60px;padding:28px 22px 36px}
  .cosmos .sky,.cosmos .aura{animation:none}
  .page-hero{padding-top:120px;padding-bottom:36px}
  .foot-links{gap:14px}
}