:root{
  --bg:#14111C; --panel:#1E1A2A; --ink:#EDE9F5; --sub:#A99FC0; --line:#322C42;
  --ac:#8B5CF6; --ac-2:#A78BFA; --paper:#FAF9FD;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.mono{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace}
.wrap{max-width:1080px;margin:0 auto;padding:0 32px}
.sec{padding:120px 0;background:var(--bg)}
.sec-dark{background:#0F0C16}
.sec-kick{font-size:13px;letter-spacing:.3em;color:var(--ac-2);text-transform:uppercase;margin-bottom:18px;font-family:"SFMono-Regular",Consolas,monospace}
h2{font-size:42px;font-weight:700;line-height:1.25;margin-bottom:18px}
.sec-p{font-size:18px;color:var(--sub);margin-bottom:8px}

/* 顶栏 */
.top{position:sticky;top:0;z-index:50;background:rgba(20,17,28,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{max-width:1080px;margin:0 auto;padding:14px 32px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:21px;letter-spacing:.02em}
.brand img{border-radius:8px}
.top-nav{margin-left:auto;display:flex;gap:26px;font-size:15px;color:var(--sub)}
.top-nav a:hover{color:var(--ac-2)}
.top-cta{background:var(--ac);color:#fff;padding:9px 22px;border-radius:6px;font-size:15px;font-weight:600}
.top-cta:hover{background:var(--ac-2)}

/* 仪表盘首屏 */
.hero{padding:120px 0 110px;background:radial-gradient(1100px 480px at 80% -10%,rgba(139,92,246,.18),transparent)}
.kicker{font-size:13px;letter-spacing:.3em;color:var(--ac-2);margin-bottom:24px;font-family:"SFMono-Regular",Consolas,monospace}
.hero h1{font-size:74px;font-weight:800;line-height:1.1;margin-bottom:28px;letter-spacing:-.01em}
.lead{font-size:20px;max-width:660px;color:var(--sub);margin-bottom:34px}
.chips{display:flex;gap:14px;margin-bottom:38px;flex-wrap:wrap}
.chip{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px 20px;display:flex;flex-direction:column;gap:4px;min-width:140px}
.chip .ck{font-size:12px;color:var(--ac-2);letter-spacing:.18em;font-family:"SFMono-Regular",Consolas,monospace}
.chip b{font-size:18px}
.hero-btns{display:flex;gap:16px}
.btn{display:inline-block;padding:15px 34px;border-radius:6px;font-size:16px;font-weight:600}
.btn-p{background:var(--ac);color:#fff}
.btn-p:hover{background:var(--ac-2)}
.btn-g{border:1px solid var(--line);color:var(--ink)}
.btn-g:hover{border-color:var(--ac);color:var(--ac-2)}

/* 功能面板 */
.panels{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:46px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px 24px}
.panel .ph{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:700;margin-bottom:12px;border-bottom:1px solid var(--line);padding-bottom:12px}
.panel .pn{font-family:"SFMono-Regular",Consolas,monospace;font-size:14px;color:var(--ac-2);background:rgba(139,92,246,.12);padding:3px 9px;border-radius:5px}
.panel p{color:var(--sub);font-size:15px}

/* 界面展示 - 应用窗口 */
.show-in{display:grid;grid-template-columns:1fr 380px;gap:60px;align-items:center}
.win{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.5)}
.win-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#16121F;border-bottom:1px solid var(--line)}
.win-bar .dot{width:11px;height:11px;border-radius:50%}
.win-bar .r{background:#FF5F57}.win-bar .y{background:#FEBC2E}.win-bar .g{background:#28C840}
.win-bar span{margin-left:10px;font-size:13px;color:var(--sub);font-family:"SFMono-Regular",Consolas,monospace}
.win-body{padding:16px}
.viewer{position:relative}
.phone{overflow:hidden;border-radius:12px}
.track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.track::-webkit-scrollbar{display:none}
.slide{scroll-snap-align:start;flex:0 0 100%;margin:0}
.slide img{width:100%;height:auto;border-radius:8px}
.arrow{position:absolute;top:44%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;border:none;background:rgba(255,255,255,.9);color:#14111C;font-size:22px;cursor:pointer;z-index:3}
.arrow.prev{left:-16px}
.arrow.next{right:-16px}
.arrow:hover{background:#fff}
.bar{display:flex;align-items:center;gap:14px;margin-top:18px;justify-content:center}
.dots{display:flex;gap:8px}
.dots button{width:8px;height:8px;border-radius:50%;border:none;background:var(--line);cursor:pointer;padding:0}
.dots button[aria-current="true"]{background:var(--ac);width:22px;border-radius:4px}
.now{font-size:14px;color:var(--sub);min-width:64px;font-family:"SFMono-Regular",Consolas,monospace}

/* 下载 */
.store{display:flex;flex-wrap:wrap;gap:16px;margin:40px 0 26px}
.store:not([hidden]){display:flex}
.store-btn{display:flex;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:16px 24px;border-radius:8px;min-width:210px}
.store-btn:hover{border-color:var(--ac);background:#221C30}
.sb-ico{font-size:20px;color:var(--ac-2)}
.sb-tx{display:flex;flex-direction:column;line-height:1.3}
.sb-tx b{font-size:17px}
.sb-tx i{font-style:normal;font-size:13px;color:var(--sub)}
.check{list-style:none;max-width:680px}
.check li{position:relative;padding-left:26px;margin-bottom:12px;color:var(--sub);font-size:15px}
.check li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;background:var(--ac);border-radius:2px}
.no-dl .dl{display:none}
.no-dl .top-cta{display:none}

/* 安装步骤条 */
.stepbar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:46px}
.st{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px 20px;position:relative}
.st .sn{font-family:"SFMono-Regular",Consolas,monospace;font-size:15px;color:var(--ac-2);display:block;margin-bottom:10px}
.st b{display:block;font-size:18px;margin-bottom:7px}
.st p{color:var(--sub);font-size:14px}

/* 问答 */
.qa{margin-top:40px;max-width:820px}
.qa details{border-bottom:1px solid var(--line);padding:22px 0}
.qa summary{cursor:pointer;font-size:18px;font-weight:600;list-style:none;position:relative;padding-right:30px}
.qa summary::after{content:"+";position:absolute;right:0;top:0;font-size:22px;color:var(--ac-2)}
.qa details[open] summary::after{content:"\2013"}
.qa p{color:var(--sub);font-size:16px;margin-top:14px;max-width:720px}

/* 页脚 */
.ft{background:#0F0C16;color:var(--sub);padding:74px 0 40px}
.ft-in{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;max-width:1080px;margin:0 auto;padding:0 32px}
.ft-col b{display:block;color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
.ft-col a{display:block;color:var(--sub);font-size:15px;margin-bottom:12px}
.ft-col a:hover{color:var(--ac-2)}
.ft-copy{text-align:center;margin-top:54px;color:#6B6280;font-size:14px;max-width:1080px;margin-left:auto;margin-right:auto;padding:0 32px}

@media(max-width:900px){
  .wrap{padding:0 22px}
  .sec{padding:84px 0}
  .hero{padding:90px 0 76px}
  .hero h1{font-size:48px}
  h2{font-size:32px}
  .panels{grid-template-columns:1fr}
  .show-in{grid-template-columns:1fr;gap:40px}
  .stepbar{grid-template-columns:repeat(2,1fr)}
  .ft-in{grid-template-columns:repeat(2,1fr)}
  .top-nav{display:none}
}
@media(max-width:480px){
  .hero h1{font-size:40px}
  .store-btn{min-width:100%}
  .stepbar{grid-template-columns:1fr}
}

/* 404 */
.nf-wrap{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:var(--bg);color:var(--ink);padding:40px}
.nf-code{font-size:120px;color:var(--ac);line-height:1;margin-bottom:10px;font-family:"SFMono-Regular",Consolas,monospace}
.nf-h{font-size:26px;margin-bottom:14px}
.nf-p{color:var(--sub);margin-bottom:30px;max-width:480px}
.nf-btn{background:var(--ac);color:#fff;padding:13px 30px;border-radius:6px;font-weight:600}
.nf-btn:hover{background:var(--ac-2)}