:root{
    --primary: rgb(70,139,223);
    --primary-dark:#1e5ea8;
    --primary-soft:#eaf4ff;
    --ink:#172033;
    --muted:#607086;
    --line:#dbe8f6;
    --panel:#ffffff;
    --bg:#f7fbff;
    --radius:22px;
    --shadow:0 18px 50px rgba(30,94,168,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:linear-gradient(180deg,#f9fcff 0%,#eef7ff 48%,#ffffff 100%);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(219,232,246,.85)}
.nav-shell{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.01em;color:#10223a}.logo{width:38px;height:38px;border-radius:12px}.nav-toggle{display:none}.nav-toggle-label{display:flex;flex-direction:column;gap:5px;padding:10px;border:1px solid var(--line);border-radius:14px;background:#fff}.nav-toggle-label span{display:block;width:22px;height:2px;background:#183252;border-radius:10px}.site-nav{position:absolute;top:70px;left:16px;right:16px;display:none;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;padding:12px}.site-nav a{padding:11px 14px;border-radius:12px;color:#43546b;font-weight:650}.site-nav a:hover{background:var(--primary-soft);color:var(--primary-dark)}.nav-toggle:checked~.site-nav{display:flex}
.section{padding:58px 0}.section-head{max-width:760px;margin:0 auto 28px;text-align:center}.eyebrow,.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid rgba(70,139,223,.2);border-radius:999px;background:rgba(234,244,255,.72);color:var(--primary-dark);font-weight:760;font-size:13px}.section h2,.doc-content h2{font-size:clamp(26px,4vw,42px);line-height:1.18;margin:14px 0;color:#10223a}.section p,.doc-content p{color:var(--muted)}
.centered-hero{padding:82px 0 36px;background:radial-gradient(circle at top center,rgba(70,139,223,.18),transparent 42%)}.hero-inner{text-align:center;max-width:920px;margin:0 auto}.hero-inner h1{font-size:clamp(38px,8vw,76px);line-height:1.05;margin:16px 0 18px;letter-spacing:-.045em;color:#0b1d33}.hero-copy{font-size:clamp(16px,2vw,20px);max-width:760px;margin:0 auto 26px;color:#53657c}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 26px;border-radius:999px;background:var(--primary);color:#fff!important;font-weight:780;box-shadow:0 12px 28px rgba(70,139,223,.25);transition:.22s ease}.download-btn:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(70,139,223,.32)}.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:20px}.hero-tags span{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.84);color:#40546e;font-size:14px;font-weight:700}
.product-bento{padding:10px 0 50px}.product-grid{display:grid;gap:16px}.product-card{position:relative;min-height:420px;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:28px;border:1px solid var(--line);border-radius:30px;background:linear-gradient(145deg,#ffffff,#eff7ff);box-shadow:var(--shadow)}.product-card:before{content:"";position:absolute;inset:40px;border-radius:32px;background:linear-gradient(135deg,rgba(70,139,223,.12),rgba(255,255,255,.5));filter:blur(8px)}.app-visual{position:relative;z-index:1;max-height:410px;width:auto;margin:auto}.status-stack{display:grid;gap:14px}.status-card,.cap-card,.category-card,.feature-card,.scenario-card,.faq-item,.doc-panel,.side-panel,.road-step,.principle-card{border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.86);box-shadow:var(--shadow)}.status-card{padding:18px}.status-card strong{display:block;color:#10223a;font-size:17px}.status-card p{margin:6px 0 0;color:var(--muted);font-size:14px}.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:var(--primary);box-shadow:0 0 0 6px rgba(70,139,223,.12);margin-right:8px}
.capability-grid{display:grid;gap:14px}.cap-card{padding:22px}.cap-card h3,.category-card h3,.feature-card h3,.scenario-card h3{margin:0 0 8px;color:#122642;font-size:20px}.cap-card p,.category-card p,.feature-card p,.scenario-card p{margin:0;color:var(--muted)}.cap-card:nth-child(1){background:linear-gradient(135deg,#fff,#edf6ff)}
.roadmap-wrap{position:relative;display:grid;gap:14px}.road-step{position:relative;padding:20px 20px 20px 58px}.road-step:before{content:attr(data-step);position:absolute;left:18px;top:20px;width:28px;height:28px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px}.road-step h3{margin:0 0 5px;font-size:18px}.road-step a,.category-card a,.scenario-card a,.text-link{display:inline-flex;margin-top:10px;color:var(--primary-dark);font-weight:760}.road-step p{margin:0;color:var(--muted);font-size:15px}
.category-bento,.bento-grid,.scenario-grid,.faq-grid{display:grid;gap:16px}.category-card{padding:22px;min-height:150px}.category-card.large{background:linear-gradient(135deg,#ffffff 0%,#eaf4ff 100%)}.feature-card{padding:24px;min-height:160px}.feature-card.big{background:linear-gradient(135deg,#eef7ff,#ffffff);min-height:220px}.feature-card.small{min-height:120px}.feature-meta{display:inline-block;margin-bottom:18px;color:var(--primary-dark);font-weight:780;font-size:13px}.security-layout{display:grid;gap:20px;align-items:start}.security-copy{padding:26px;border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:var(--shadow)}.principle-list{display:grid;gap:12px}.principle-card{padding:18px;display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start}.principle-card span{width:34px;height:34px;border-radius:12px;background:var(--primary-soft);color:var(--primary-dark);display:grid;place-items:center;font-weight:850}.principle-card strong{display:block;color:#122642}.principle-card p{margin:4px 0 0;color:var(--muted);font-size:14px}.scenario-card{padding:22px}.faq-item{padding:22px}.faq-item h3{margin:0 0 8px;color:#10223a;font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta-section{padding:64px 0}.cta-box{text-align:center;border:1px solid var(--line);border-radius:32px;padding:42px 22px;background:linear-gradient(135deg,#ffffff 0%,#e9f5ff 100%);box-shadow:var(--shadow)}.cta-box h2{font-size:clamp(28px,5vw,46px);line-height:1.16;margin:0 0 12px}.cta-box p{max-width:680px;margin:0 auto 24px;color:var(--muted)}
.page-hero{padding:58px 0 24px}.page-title-card{border:1px solid var(--line);border-radius:30px;background:rgba(255,255,255,.9);box-shadow:var(--shadow);padding:30px}.page-title-card h1{font-size:clamp(32px,5vw,54px);line-height:1.12;margin:14px 0;color:#10223a}.page-title-card p{max-width:760px;color:var(--muted);margin:0}.doc-page{padding:26px 0 66px}.doc-layout{display:grid;gap:22px}.doc-content{border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:var(--shadow);padding:24px}.doc-content h2{font-size:clamp(22px,3vw,32px);margin-top:26px}.doc-content h3{font-size:20px;color:#132a48;margin:20px 0 8px}.doc-content ul,.doc-content ol{padding-left:22px;color:#52657d}.doc-content li{margin:8px 0}.note-box{border-left:4px solid var(--primary);background:var(--primary-soft);border-radius:16px;padding:16px 18px;margin:22px 0;color:#37516f}.checklist{display:grid;gap:10px;margin:18px 0}.checklist div{padding:13px 14px;border:1px solid var(--line);border-radius:15px;background:#fbfdff;color:#496078}.inline-grid{display:grid;gap:14px;margin:18px 0}.mini-card{padding:16px;border:1px solid var(--line);border-radius:18px;background:#fbfdff}.mini-card strong{display:block;color:#122642;margin-bottom:4px}.side-panel{padding:20px;height:max-content}.side-panel h3{margin:0 0 12px;color:#10223a}.side-panel a{display:block;padding:10px 0;border-top:1px solid var(--line);color:#4c6179;font-weight:700}.download-line{margin-top:28px}.download-page-grid{display:grid;gap:20px;align-items:start}.download-panel{padding:28px;border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:var(--shadow)}.download-actions{text-align:center;padding:32px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(135deg,#fff,#edf6ff);box-shadow:var(--shadow)}
.site-footer{padding:42px 0 24px;background:#0f2239;color:#cfdbeb}.footer-grid{display:grid;gap:26px}.footer-brand{font-size:20px;font-weight:850;color:#fff;margin-bottom:8px}.site-footer p{margin:0;color:#aebed1}.site-footer strong{display:block;color:#fff;margin-bottom:8px}.site-footer a{display:block;color:#cfdbeb;padding:4px 0}.footer-bottom{margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.13);font-size:13px;color:#9fb2c7}
@media (min-width:700px){.capability-grid{grid-template-columns:repeat(2,1fr)}.category-bento{grid-template-columns:repeat(2,1fr)}.bento-grid{grid-template-columns:repeat(2,1fr)}.scenario-grid{grid-template-columns:repeat(2,1fr)}.faq-grid{grid-template-columns:repeat(2,1fr)}.inline-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:2fr 1fr 1fr}.download-page-grid{grid-template-columns:1.2fr .8fr}}
@media (min-width:980px){.nav-toggle-label{display:none}.site-nav{position:static;display:flex;flex-direction:row;align-items:center;background:transparent;border:0;box-shadow:none;padding:0}.site-nav a{padding:9px 12px}.centered-hero{padding-top:110px}.product-grid{grid-template-columns:1.6fr .8fr;align-items:stretch}.product-card{min-height:560px}.app-visual{max-height:520px}.capability-grid{grid-template-columns:repeat(4,1fr)}.roadmap-wrap{grid-template-columns:repeat(3,1fr)}.road-step:nth-child(even){transform:translateY(26px)}.category-bento{grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(150px,auto)}.category-card.large{grid-column:span 2}.bento-grid{grid-template-columns:repeat(4,1fr)}.feature-card.big{grid-column:span 2}.feature-card.medium{grid-column:span 2}.security-layout{grid-template-columns:1fr .9fr}.scenario-grid{grid-template-columns:repeat(5,1fr)}.scenario-card:nth-child(1),.scenario-card:nth-child(2){grid-column:span 2}.scenario-card:nth-child(3){grid-column:span 1}.scenario-card:nth-child(4),.scenario-card:nth-child(5){grid-column:span 2}.doc-layout{grid-template-columns:minmax(0,1fr) 300px}.doc-content{padding:36px}.page-title-card{padding:42px}.section{padding:76px 0}.footer-grid{align-items:start}}
@media (max-width:420px){.container{width:min(100% - 24px,1120px)}.hero-tags{justify-content:flex-start}.hero-inner{text-align:left}.hero-inner .download-btn{width:100%}.centered-hero{padding-top:46px}.download-btn{width:100%;padding:13px 18px}.product-card{min-height:360px}.section-head{text-align:left}.cta-box{text-align:left}.page-title-card{padding:24px}.doc-content{padding:20px}.principle-card{grid-template-columns:1fr}.principle-card span{margin-bottom:2px}}