:root{
  --blue:#2563eb;--blue-d:#1d4ed8;--blue-l:#3b82f6;--blue-ll:#60a5fa;--blue-lll:#93c5fd;
  --blue-bg:#eff4ff;--blue-bg2:#dbe7ff;
  --ink:#0f1f3a;--ink-2:#475569;--ink-3:#94a3b8;
  --line:#e4ecf7;--card:#fff;
  --shadow:0 14px 44px rgba(37,99,235,.12);
  --shadow-sm:0 4px 18px rgba(37,99,235,.08);
  --radius:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}

/* nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1200px;margin:0 auto;padding:14px 28px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:21px}
.brand-logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--blue-l),var(--blue-d));display:grid;place-items:center;box-shadow:0 6px 14px rgba(37,99,235,.35)}
.brand-logo.sm{width:24px;height:24px;border-radius:7px}
.nav-links{display:flex;gap:12px;align-items:center}
.btn-ghost{padding:9px 20px;border-radius:9px;color:var(--ink-2);font-weight:600;transition:.2s}
.btn-ghost:hover{color:var(--blue-d);background:var(--blue-bg)}
.btn-primary{padding:10px 22px;border-radius:9px;background:linear-gradient(135deg,var(--blue-l),var(--blue-d));color:#fff;font-weight:700;box-shadow:0 8px 18px rgba(37,99,235,.3);transition:.2s}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 11px 24px rgba(37,99,235,.42)}

/* hero */
.hero{position:relative;overflow:hidden;padding:60px 28px 80px}
.hero-bg{position:absolute;inset:0;z-index:-1;background:
  radial-gradient(1000px 480px at 8% -8%,#dbe7ff,transparent 60%),
  radial-gradient(900px 420px at 105% 5%,#e8f0ff,transparent 55%),
  linear-gradient(180deg,#f4f8ff,#fff)}
.hero-bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(37,99,235,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.04) 1px,transparent 1px);background-size:42px 42px;mask:linear-gradient(180deg,#000,transparent 70%)}
.hero-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:.92fr 1.08fr;gap:46px;align-items:center}
.hero-title{font-size:48px;font-weight:900;line-height:1.22;letter-spacing:-.5px}
.hero-title .accent{background:linear-gradient(90deg,var(--blue-d),var(--blue-l));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{margin-top:20px;color:var(--ink-2);font-size:16px}
.hero-features{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:30px 0 6px;max-width:440px}
.hf{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);padding:11px 14px;border-radius:11px;font-weight:600;font-size:14px;box-shadow:var(--shadow-sm);transition:.2s}
.hf:hover{transform:translateY(-3px);border-color:var(--blue-ll)}
.hf span{font-size:16px}
.cta-btn{display:inline-flex;align-items:center;gap:9px;margin-top:26px;padding:15px 34px;border-radius:12px;background:linear-gradient(135deg,var(--blue-l),var(--blue-d));color:#fff;font-weight:700;font-size:16.5px;box-shadow:0 12px 28px rgba(37,99,235,.35);transition:.25s}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(37,99,235,.45)}
.cta-btn .arrow{transition:.25s}.cta-btn:hover .arrow{transform:translateX(5px)}
.cta-btn.light{background:#fff;color:var(--blue-d)}

/* hero visual */
.hero-visual{position:relative;height:480px}
.dash-mock{position:absolute;top:0;left:0;width:600px;background:#fff;border-radius:16px;box-shadow:0 28px 64px rgba(15,31,58,.16);overflow:hidden;border:1px solid var(--line)}
.dm-bar{display:flex;align-items:center;gap:6px;padding:11px 14px;border-bottom:1px solid var(--line);background:#fafcff}
.dm-bar i{width:9px;height:9px;border-radius:50%;background:#e2e8f0}
.dm-bar i:first-child{background:#fca5a5}.dm-bar i:nth-child(2){background:#fcd34d}.dm-bar i:nth-child(3){background:#86efac}
.dm-tab{margin-left:14px;font-size:12px;font-weight:700;color:var(--blue-d)}
.dm-search{margin-left:auto;font-size:12px;opacity:.5}
.dm-body{display:grid;grid-template-columns:104px 1fr}
.dm-side{background:#fafcff;padding:12px 8px;border-right:1px solid var(--line)}
.dms{font-size:11px;color:var(--ink-2);padding:7px 9px;border-radius:8px;margin-bottom:2px}
.dms.active{background:var(--blue);color:#fff;font-weight:700}
.dm-main{padding:14px}
.dm-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.dmc{background:#fafcff;border:1px solid var(--line);border-radius:10px;padding:10px}
.dmc span{font-size:10px;color:var(--ink-3);display:block}
.dmc b{font-size:18px;font-weight:900;color:var(--ink);display:block;margin:2px 0}
.dmc i{font-size:9px;color:var(--ink-3);font-style:normal}
.dm-row{display:grid;grid-template-columns:.8fr 1.2fr;gap:12px;margin-top:12px}
.dmp-title{font-size:11px;font-weight:700;margin-bottom:8px}
.ring{position:relative;width:80px;height:80px;margin:0 auto}
.ring b{position:absolute;inset:0;display:grid;place-items:center;font-size:16px;font-weight:900;color:var(--blue-d)}
.apps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.apps-grid span{aspect-ratio:1;background:var(--blue-bg);border-radius:9px;display:grid;place-items:center;font-size:16px}
.dm-charts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.dmch{background:#fafcff;border:1px solid var(--line);border-radius:10px;padding:10px}
.spark{width:100%;height:36px}
.mini-donut{width:48px;height:48px;border-radius:50%;margin:0 auto;position:relative}
.mini-donut span{position:absolute;inset:28%;background:#fff;border-radius:50%}
.mini-donut.big{width:96px;height:96px;margin:8px auto}
.mini-bars{display:flex;gap:4px;align-items:flex-end;height:40px;justify-content:center}
.mini-bars i{width:8px;background:var(--blue);border-radius:3px 3px 0 0}
.mini-bars.big{height:90px}.mini-bars.big i{width:16px}

.phone-mock{position:absolute;right:-8px;bottom:-26px;width:186px;height:372px;background:#1e293b;border-radius:30px;padding:9px;box-shadow:0 30px 70px rgba(15,31,58,.3);z-index:3}
.phone-mock.floating{position:relative;right:auto;bottom:auto}
.phone-notch{position:absolute;top:9px;left:50%;transform:translateX(-50%);width:62px;height:16px;background:#1e293b;border-radius:0 0 12px 12px;z-index:5}
.phone-screen{background:#f4f8ff;border-radius:22px;height:100%;overflow:hidden;padding-top:14px}
.ph-top{font-size:13px;font-weight:800;padding:6px 16px 12px}
.ph-apps{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:0 14px}
.pa{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:18px;background:#fff;border-radius:11px;padding:9px 0;box-shadow:var(--shadow-sm)}
.pa span{font-size:9px;color:var(--ink-2)}
.ph-todo{margin:14px 12px;background:#fff;border-radius:13px;padding:12px;box-shadow:var(--shadow-sm)}
.pt-title{font-size:12px;font-weight:800;margin-bottom:8px}
.pt-row{display:flex;justify-content:space-between;font-size:11px;color:var(--ink-2);padding:5px 0;border-top:1px solid var(--line)}
.pt-row i{font-style:normal;color:var(--ink-3)}
.ph-clock{margin:10px 12px;background:linear-gradient(135deg,var(--blue-l),var(--blue-d));color:#fff;border-radius:13px;padding:16px;font-size:16px;font-weight:800;text-align:center}
.phc-sub{font-size:10px;font-weight:400;opacity:.9;margin-top:4px}

/* sections */
.section{max-width:1200px;margin:0 auto;padding:74px 28px}
.sec-head{display:flex;align-items:center;gap:12px;margin-bottom:36px}
.sec-head.sm{margin-bottom:20px}
.sec-letter{font-size:26px;font-weight:900;color:var(--blue)}
.sec-head h2{font-size:27px;font-weight:900}
.sec-head.sm h2{font-size:21px}

.cap-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.cap-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 18px;text-align:center;box-shadow:var(--shadow-sm);transition:.25s}
.cap-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-ll)}
.cap-ico{width:56px;height:56px;margin:0 auto 14px;border-radius:15px;background:linear-gradient(135deg,var(--blue-bg2),#fff);display:grid;place-items:center;font-size:26px;border:1px solid var(--line)}
.cap-card h3{font-size:16px;margin-bottom:8px}
.cap-card p{font-size:12px;color:var(--ink-2);line-height:1.7}

/* flow */
.flow-sec{background:linear-gradient(180deg,#f4f8ff,#fff);border-radius:24px}
.flow-line{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.fl-node{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px 20px;font-weight:700;font-size:14.5px;display:flex;align-items:center;gap:8px;box-shadow:var(--shadow-sm)}
.fl-node.done{background:var(--blue);color:#fff;border:none}
.fl-ico{font-size:17px}
.fl-arrow{color:var(--blue-ll);font-size:20px;font-weight:900}
.flow-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.ft{background:#fff;border:1px solid var(--line);border-radius:10px;padding:11px 18px;font-size:13.5px;color:var(--ink-2);font-weight:600}

/* two col C/D */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.panel-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.pc{background:#fafcff;border:1px solid var(--line);border-radius:11px;padding:12px}
.pc span{font-size:11px;color:var(--ink-3);display:block}
.pc b{font-size:22px;font-weight:900;color:var(--blue-d);display:block;margin:2px 0}
.pc i{font-size:10px;color:#16a34a;font-style:normal}
.panel-row{margin:16px 0}
.pb-title{font-size:13px;font-weight:700;margin-bottom:8px}
.pb-bar{height:10px;background:var(--blue-bg);border-radius:6px;overflow:hidden}
.pb-bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--blue-l),var(--blue-d));border-radius:6px}
.pb-sub{font-size:12px;color:var(--ink-3);margin-top:8px}
.panel-apps{display:grid;grid-template-columns:repeat(8,1fr);gap:8px}
.panel-apps span{aspect-ratio:1;background:var(--blue-bg);border-radius:10px;display:grid;place-items:center;font-size:18px}
.org-demo{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.odt-title{font-size:13px;font-weight:800;margin-bottom:10px}
.odt{font-size:12.5px;color:var(--ink-2);padding:5px 0}
.odt.n0{font-weight:800;color:var(--ink)}
.odt.n1{padding-left:14px;border-left:2px solid var(--blue-bg2);margin-left:6px}
.odt.n2{padding-left:30px;color:var(--ink-3);border-left:2px solid var(--blue-bg2);margin-left:6px}
.od-perm{background:#fafcff;border:1px solid var(--line);border-radius:12px;padding:14px}
.perm-row{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;margin-bottom:10px}
.perm-row b{color:var(--blue-d)}
.perm-check{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin:7px 0;cursor:pointer}
.perm-check input{accent-color:var(--blue)}

/* multi E */
.multi-sec{background:linear-gradient(180deg,#fff,#f4f8ff);border-radius:24px}
.multi-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:center}
.multi-feats{display:flex;flex-direction:column;gap:20px}
.mf{display:flex;gap:14px;align-items:flex-start}
.mf>span{width:44px;height:44px;border-radius:12px;background:var(--blue-bg);display:grid;place-items:center;font-size:20px;flex-shrink:0}
.mf b{font-size:15.5px}.mf p{font-size:13px;color:var(--ink-2)}
.multi-visual{position:relative;display:flex;align-items:flex-end;justify-content:center;gap:0;min-height:320px}
.laptop{width:380px}
.laptop-screen{background:#1e293b;border-radius:12px 12px 0 0;padding:10px;height:230px}
.ls-bar{height:8px;background:#334155;border-radius:4px;margin-bottom:10px;width:40%}
.ls-body{background:#f4f8ff;border-radius:8px;height:185px;display:grid;place-items:center;padding:20px}
.laptop-base{height:14px;background:linear-gradient(180deg,#334155,#1e293b);border-radius:0 0 16px 16px;width:430px;margin-left:-25px}
.multi-visual .phone-mock.floating{position:absolute;right:30px;bottom:0;width:150px;height:300px;z-index:4}

/* data F */
.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.data-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.data-card h3{font-size:15px;margin-bottom:14px}
.dc-legend{display:flex;gap:14px;justify-content:center;margin-top:12px}
.dc-legend i{font-size:11px;color:var(--ink-2);font-style:normal}
.bar-list>div{margin-bottom:12px}
.bar-list span{font-size:12px;color:var(--ink-2);display:block;margin-bottom:5px}
.bl{height:9px;background:var(--blue-bg);border-radius:5px;overflow:hidden}
.bl>i{display:block;height:100%;background:linear-gradient(90deg,var(--blue-l),var(--blue-d));border-radius:5px}

/* scene G */
.scene-sec{padding-bottom:80px}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;gap:14px;align-items:flex-start;box-shadow:var(--shadow-sm);transition:.25s}
.scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.sc-ico{width:50px;height:50px;border-radius:13px;background:linear-gradient(135deg,var(--blue-l),var(--blue-d));display:grid;place-items:center;font-size:24px;flex-shrink:0}
.scene-card h3{font-size:15.5px;margin-bottom:6px}
.scene-card p{font-size:12.5px;color:var(--ink-2)}

/* CTA + footer */
.end-cta{background:linear-gradient(135deg,var(--blue-d),var(--blue-l));color:#fff;text-align:center;padding:70px 28px}
.end-cta h2{font-size:30px;font-weight:900}
.end-cta p{opacity:.95;margin-top:10px;font-size:16px}
.end-cta .cta-btn{margin-top:26px}
.footer{background:#0d1b34;color:#cbd9ef;padding:34px 28px}
.ft-inner{max-width:1200px;margin:0 auto;text-align:center}
.ft-brand{font-weight:800;font-size:16px;display:flex;gap:8px;justify-content:center;align-items:center}
.footer p{font-size:13px;opacity:.6;margin-top:10px}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

@media(max-width:1000px){
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .hero-visual{height:auto;display:flex;justify-content:center;transform:scale(.9)}
  .dash-mock{position:relative;width:100%;max-width:560px}
  .phone-mock{display:none}
  .hero-title{font-size:36px}
  .cap-grid{grid-template-columns:repeat(3,1fr)}
  .two-col,.multi-grid{grid-template-columns:1fr}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .hero-features{grid-template-columns:repeat(2,1fr);max-width:none}
}
@media(max-width:560px){
  .cap-grid,.data-grid,.scene-grid,.panel-cards{grid-template-columns:1fr}
  .hero-title{font-size:30px}
  .sec-head h2{font-size:21px}
  .flow-line{flex-direction:column}.fl-arrow{transform:rotate(90deg)}
  .org-demo{grid-template-columns:1fr}
}