:root{
  --primary: rgb(70,139,223);
  --primary-dark:#1f5fa8;
  --primary-soft:#eaf4ff;
  --ink:#132033;
  --muted:#637083;
  --line:#dbe8f6;
  --panel:#ffffff;
  --bg:#f6faff;
  --bg2:#eef6ff;
  --shadow:0 18px 45px rgba(42,92,150,.10);
  --radius:20px;
}
*{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,#fff 0%,var(--bg) 42%,#fff 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,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#10243c;letter-spacing:.2px}.logo{width:36px;height:36px;border-radius:10px}.nav-toggle{border:1px solid var(--line);background:#fff;border-radius:12px;padding:8px 11px;font-size:19px;color:var(--ink)}
.site-nav{position:absolute;left:16px;right:16px;top:72px;display:none;grid-template-columns:1fr;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;padding:10px}.site-nav.is-open{display:grid}.site-nav a{padding:12px 14px;color:var(--muted);border-radius:12px;font-weight:650}.site-nav a:hover{background:var(--primary-soft);color:var(--primary-dark)}
.section{padding:46px 0}.section-title{margin:0 0 14px;font-size:clamp(26px,4vw,42px);line-height:1.18}.section-lead{margin:0 0 24px;color:var(--muted);max-width:760px}.eyebrow,.doc-badge{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(70,139,223,.25);background:var(--primary-soft);color:var(--primary-dark);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:750;margin-bottom:14px}
.docs-hero{padding:54px 0 26px;background:radial-gradient(circle at 25% 10%,rgba(70,139,223,.14),transparent 36%),linear-gradient(180deg,#fff,#f4f9ff)}.hero-layout{display:grid;gap:26px;align-items:center}.hero-copy h1{font-size:clamp(34px,8vw,64px);line-height:1.05;margin:0 0 18px;letter-spacing:-1.6px}.hero-copy p{font-size:17px;color:var(--muted);margin:0 0 22px;max-width:620px}.hero-tags,.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.tag,.mini-tag{display:inline-flex;border:1px solid var(--line);background:rgba(255,255,255,.8);border-radius:999px;padding:8px 12px;color:#36506e;font-size:13px;font-weight:700}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;background:var(--primary);color:#fff!important;font-weight:800;border:0;box-shadow:0 12px 24px rgba(70,139,223,.24);transition:.2s ease}.download-btn:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(70,139,223,.30)}
.product-panel{position:relative;border:1px solid var(--line);background:linear-gradient(145deg,rgba(255,255,255,.95),rgba(236,246,255,.9));border-radius:28px;padding:20px;box-shadow:var(--shadow);overflow:hidden}.app-frame{display:grid;place-items:center;background:#fff;border:1px solid var(--line);border-radius:24px;min-height:360px;padding:24px}.app-frame img{max-height:420px;margin:auto}.status-stack{display:grid;gap:12px;margin-top:14px}.status-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:0 10px 30px rgba(29,80,135,.07)}.status-card strong{display:block;font-size:14px}.status-card span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.safety-strip{margin:10px auto 28px}.safety-inner{display:flex;flex-wrap:wrap;gap:12px;background:linear-gradient(90deg,#eef7ff,#fff);border:1px solid var(--line);border-left:5px solid var(--primary);border-radius:20px;padding:14px 16px}.safety-inner span{flex:1 1 240px;color:#314763;font-weight:650;font-size:14px}.docs-layout{display:grid;gap:24px}.docs-sidebar{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:0 12px 30px rgba(29,80,135,.06)}.docs-sidebar h2{font-size:16px;margin:0 0 12px}.docs-sidebar a{display:block;padding:10px 12px;border-radius:12px;color:var(--muted);font-weight:700}.docs-sidebar a:hover{background:var(--primary-soft);color:var(--primary-dark)}.docs-content{display:grid;gap:26px}.doc-section{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 12px 30px rgba(29,80,135,.05)}.doc-section h2{margin:0 0 12px;font-size:26px}.doc-section p{color:var(--muted);margin:0 0 16px}.notice-box,.tip-box{background:#f0f7ff;border-left:5px solid var(--primary);border-radius:16px;padding:16px;color:#24435f;margin:18px 0}.warning-box{background:#fff8ec;border-left:5px solid #e6a23c;border-radius:16px;padding:16px;color:#5b4020;margin:18px 0}
.docs-steps{display:grid;gap:14px;counter-reset:step}.step-card{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:flex-start;background:#fbfdff;border:1px solid var(--line);border-radius:18px;padding:16px}.step-no{width:38px;height:38px;border-radius:14px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:850}.step-card h3{margin:0 0 4px;font-size:17px}.step-card p{margin:0 0 8px;color:var(--muted)}.text-link{color:var(--primary-dark);font-weight:800}.docs-category-grid,.feature-grid,.risk-grid,.scenario-grid{display:grid;gap:14px}.category-card,.document-card,.feature-card,.risk-item,.scenario-card,.faq-item,.principle-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 10px 28px rgba(29,80,135,.05)}.category-card h3,.feature-card h3,.risk-item h3,.scenario-card h3{margin:0 0 8px}.category-card p,.feature-card p,.risk-item p,.scenario-card p,.faq-item p,.principle-item p{margin:0;color:var(--muted)}.category-card a,.risk-item a,.scenario-card a{display:inline-flex;margin-top:12px;color:var(--primary-dark);font-weight:800}.principle-list{display:grid;gap:12px}.principle-item{display:grid;grid-template-columns:auto 1fr;gap:14px}.principle-item b{width:34px;height:34px;border-radius:12px;background:var(--primary-soft);color:var(--primary-dark);display:grid;place-items:center}.feature-grid .feature-card:first-child{background:linear-gradient(145deg,#fff,#edf7ff)}.risk-item{border-left:4px solid rgba(70,139,223,.55)}.faq-list{display:grid;gap:12px}.faq-item h3{margin:0 0 8px;font-size:18px}.cta-section{padding:48px 0}.cta-card{text-align:center;background:linear-gradient(145deg,#edf7ff,#fff);border:1px solid var(--line);border-radius:28px;padding:34px 20px;box-shadow:var(--shadow)}.cta-card h2{font-size:clamp(26px,5vw,42px);line-height:1.15;margin:0 0 12px}.cta-card p{max-width:680px;margin:0 auto 22px;color:var(--muted)}
.page-hero{padding:46px 0 22px}.page-hero .container{display:grid;gap:12px}.page-hero h1{font-size:clamp(30px,6vw,48px);line-height:1.12;margin:0}.page-hero p{color:var(--muted);max-width:780px;margin:0}.article-layout{display:grid;gap:20px;align-items:start}.article-main{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 12px 30px rgba(29,80,135,.05)}.article-main h2{margin-top:26px}.article-main p{color:var(--muted)}.article-aside{display:grid;gap:14px}.checklist{list-style:none;margin:12px 0;padding:0;display:grid;gap:10px}.checklist li{background:#fbfdff;border:1px solid var(--line);border-radius:14px;padding:12px;color:#314763}.checklist li:before{content:'✓';font-weight:900;color:var(--primary);margin-right:8px}.number-list{counter-reset:item;list-style:none;padding:0;margin:16px 0;display:grid;gap:12px}.number-list li{counter-increment:item;background:#fbfdff;border:1px solid var(--line);border-radius:14px;padding:14px}.number-list li:before{content:counter(item, decimal-leading-zero);display:inline-grid;place-items:center;margin-right:10px;width:34px;height:34px;border-radius:12px;background:var(--primary-soft);color:var(--primary-dark);font-weight:850}.download-wrap{margin-top:24px}.download-page-card{max-width:860px;margin:0 auto;text-align:center}.site-footer{margin-top:36px;background:#10243c;color:#d6e4f4}.footer-grid{display:grid;gap:24px;padding:38px 0}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px}.footer-brand img{width:34px;height:34px}.site-footer p{color:#aebfd1;margin:0}.site-footer h3{color:#fff;margin:0 0 10px}.site-footer a{display:block;color:#c4d7ec;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:16px 0;color:#aebfd1;font-size:13px}
@media (min-width:640px){.docs-category-grid,.feature-grid,.risk-grid,.scenario-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:2fr 1fr 1fr}.article-main{padding:30px}.doc-section{padding:28px}}
@media (min-width:900px){.nav-toggle{display:none}.site-nav{position:static;display:flex;align-items:center;background:transparent;border:0;box-shadow:none;padding:0}.site-nav a{padding:8px 10px}.hero-layout{grid-template-columns:1.04fr .96fr;gap:44px}.status-stack{grid-template-columns:1fr 1fr}.docs-layout{grid-template-columns:260px 1fr;align-items:start}.docs-sidebar{position:sticky;top:88px}.docs-category-grid{grid-template-columns:repeat(3,1fr)}.feature-grid{grid-template-columns:repeat(3,1fr)}.feature-grid .feature-card:first-child{grid-column:span 2}.risk-grid{grid-template-columns:repeat(3,1fr)}.scenario-grid{grid-template-columns:repeat(3,1fr)}.article-layout{grid-template-columns:minmax(0,760px) 300px}.article-aside{position:sticky;top:88px}.docs-steps{grid-template-columns:1fr 1fr}.app-frame{min-height:470px}}
@media (max-width:420px){.container{width:min(100% - 22px,1120px)}.docs-hero{padding-top:38px}.download-btn{width:100%;padding:0 16px}.product-panel{padding:14px}.app-frame{min-height:280px;padding:14px}.doc-section,.article-main{padding:18px}.hero-tags .tag{font-size:12px}}