:root{
  --brand:#0AB861; --brand-dark:#078F4B; --brand-soft:#E9F9F1;
  --ink:#101418; --muted:#5C6672; --line:rgba(16,20,24,.09);
  --soft:#F6F8F9;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);
  font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* 微信提示条 */
.wx-tip{display:none;background:#FFF7E6;color:#8A5A00;font-size:13px;padding:10px 16px;text-align:center;border-bottom:1px solid #FFE2B8}
.wx-tip.on{display:block}

/* 顶栏 */
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1080px;margin:0 auto;padding:0 20px;height:62px;display:flex;align-items:center;gap:22px}
.logo{font-weight:700;font-size:16px;display:flex;align-items:center;gap:9px}
.logo .mark{width:26px;height:26px;border-radius:8px;display:block;flex:0 0 26px}
.nav nav{margin-left:auto;display:flex;gap:20px;font-size:14px;color:var(--muted)}
.nav nav a:hover{color:var(--brand-dark)}

/* 首屏 */
.hero{padding:66px 0 46px;background:radial-gradient(900px 400px at 50% -100px,rgba(10,184,97,.14),transparent 70%)}
.hero .eyebrow{display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-soft);border-radius:999px;padding:4px 12px;margin-bottom:16px}
.hero h1{font-size:38px;line-height:1.3;letter-spacing:-.6px;max-width:640px}
.hero .lead{font-size:16px;color:var(--muted);max-width:580px;margin:16px 0 28px}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:10px;padding:11px 20px;
  font-size:14.5px;font-weight:600;border:1px solid transparent;transition:.18s;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(10,184,97,.24)}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:rgba(10,184,97,.45);color:var(--brand-dark)}
.btn[disabled]{opacity:.5;pointer-events:none}
.meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;font-size:12.5px;color:var(--muted)}
.meta span{display:inline-flex;align-items:center;gap:6px}

/* 通用区块 */
section.block{padding:52px 0}
section.block.alt{background:var(--soft)}
.section-head{margin-bottom:26px}
.section-head h2{font-size:24px;letter-spacing:-.3px}
.section-head p{color:var(--muted);margin:8px 0 0;font-size:14px}

/* 产品卡片 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.pcard{border:1px solid var(--line);border-radius:16px;padding:20px;background:#fff;display:flex;flex-direction:column;gap:12px;
  transition:.18s;box-shadow:0 1px 2px rgba(16,20,24,.04)}
.pcard:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(16,20,24,.08);border-color:rgba(10,184,97,.35)}
.pcard .top{display:flex;align-items:center;gap:12px}
.picon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-dark);flex:0 0 42px}
.pcard h3{font-size:16px}
.pcard .plat{font-size:12px;color:var(--muted)}
.pcard .desc{font-size:13.5px;color:var(--muted);flex:1}
.pcard .foot{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted)}
.tag{font-size:11.5px;font-weight:600;border-radius:999px;padding:2px 10px;background:var(--brand-soft);color:var(--brand-dark)}
.tag.soon{background:#F1F2F4;color:var(--muted)}

/* 特点 */
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.feat .fi{width:36px;height:36px;border-radius:10px;background:var(--brand-soft);color:var(--brand-dark);display:grid;place-items:center;margin-bottom:10px}
.feat h3{font-size:15px;margin-bottom:4px}
.feat p{font-size:13.5px;color:var(--muted);margin:0}

/* 步骤 */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.step b{display:block;font-size:13.5px;margin-bottom:4px}
.step b::before{counter-increment:s;content:counter(s) ". ";color:var(--brand-dark)}
.step p{margin:0;font-size:13px;color:var(--muted)}

/* 下载信息表 */
.info-card{border:1px solid var(--line);border-radius:16px;padding:20px;background:#fff;margin-bottom:18px}
.info-card h2{font-size:19px}
.info-card h1{font-size:19px;margin:0}
.info-card .lead{font-size:13.5px;color:var(--muted);margin:6px 0 16px}
.kv{width:100%;border-collapse:collapse;font-size:13.5px}
.kv th,.kv td{padding:9px 0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.kv th{width:110px;color:var(--muted);font-weight:500;white-space:nowrap}
.kv tr:last-child th,.kv tr:last-child td{border-bottom:none}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;word-break:break-all;color:var(--muted)}

/* 文档页 */
.doc{padding:44px 0 64px}
.doc h1{font-size:28px;margin-bottom:6px}
.doc .updated{font-size:12.5px;color:var(--muted);margin-bottom:26px}
.doc h2{font-size:17px;margin:28px 0 8px}
.doc p,.doc li{font-size:14px;color:#2A3138;line-height:1.85}
.doc ul{padding-left:20px}
.doc .note{background:var(--soft);border-left:3px solid var(--brand);border-radius:8px;padding:12px 14px;font-size:13.5px;color:var(--muted)}

/* 更新日志 */
.log{list-style:none;padding:0;margin:0}
.log li{border-left:2px solid var(--brand-soft);padding:0 0 24px 20px;position:relative}
.log li::before{content:'';position:absolute;left:-6px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--brand)}
.log .v{font-weight:700;font-size:15px}
.log .d{font-size:12px;color:var(--muted);margin-left:8px;font-weight:400}
.log ul{margin:8px 0 0;padding-left:18px}
.log li li{border:0;padding:0;margin:2px 0}
.log li li::before{display:none}
.log .item{font-size:13.5px;color:#2A3138}

/* 面包屑 */
.crumb{font-size:12.5px;color:var(--muted);padding:18px 0 0}
.crumb a:hover{color:var(--brand-dark)}

/* 页脚 */
footer{border-top:1px solid var(--line);margin-top:60px;padding:28px 0 34px;background:#fff}
footer .inner{display:flex;gap:12px 22px;flex-wrap:wrap;align-items:center;font-size:12.5px;color:var(--muted)}
footer .links{margin-left:auto;display:flex;gap:18px;flex-wrap:wrap}
footer a:hover{color:var(--brand-dark)}

@media (max-width:640px){
  .hero{padding:44px 0 34px}
  .hero h1{font-size:28px}
  .hero .lead{font-size:14.5px}
  .nav nav{gap:14px;font-size:13px}
  section.block{padding:40px 0}
  .kv th{width:86px}
}

/* 品牌首屏 */
.hero .brand-line{font-size:48px;line-height:1.2;letter-spacing:-1.2px}
.hero .brand-line .sep{color:#C7CDD4;font-weight:400;padding:0 10px;letter-spacing:0}
.hero .brand-line .accent{color:var(--brand-dark)}
.hero .slogan-sub{font-size:17px;font-weight:600;color:#2A3138;margin:16px 0 0}
.stat-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 16px;min-width:118px}
.stat b{display:block;font-size:18px;line-height:1.35}
.stat span{font-size:12px;color:var(--muted)}

/* 关于灵闪 */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}
.quote{font-size:19px;font-weight:700;letter-spacing:-.3px;margin:0 0 10px}
.about-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}
.about-card h3{font-size:14px;margin-bottom:6px}
.about-card p{margin:0;font-size:13.5px;color:var(--muted)}
.brand-note{font-size:13px;color:var(--muted);margin-top:14px}

/* 常见问题 */
.faq{display:flex;flex-direction:column;gap:10px;max-width:820px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 16px}
.faq summary{cursor:pointer;font-size:14px;font-weight:600;padding:14px 26px 14px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';position:absolute;right:2px;top:12px;color:var(--brand-dark);font-weight:400;font-size:18px}
.faq details[open] summary::after{content:'−'}
.faq details p{margin:0 0 14px;font-size:13.5px;color:var(--muted);line-height:1.8}

/* 顶栏品牌副标 */
.logo-sub{font-size:11.5px;font-weight:400;color:var(--muted);margin-left:2px;
  padding-left:8px;border-left:1px solid var(--line);white-space:nowrap}

@media (max-width:720px){
  .about-grid{grid-template-columns:1fr}
  .hero .brand-line{font-size:32px}
  .hero .brand-line .sep{padding:0 6px}
}
@media (max-width:640px){
  .logo-sub{display:none}
}