*{box-sizing:border-box}
body{margin:0;font-family:"Microsoft YaHei",system-ui,-apple-system,sans-serif;color:#1e293b;background:#fff;line-height:1.7}
a{color:#2563eb;text-decoration:none}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
.muted{color:#64748b}
.center{text-align:center}
.mono{font-family:Consolas,monospace;font-size:13px}

/* nav */
.nav{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid #e2e8f0;z-index:50}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-size:20px;font-weight:800;color:#0f172a}
.logo span{color:#2563eb}
.nav nav a{margin-left:22px;color:#334155;font-size:15px}
.nav nav a:hover{color:#2563eb}

/* hero */
.hero{background:linear-gradient(135deg,#0f172a 0%,#1e3a8a 60%,#2563eb 100%);color:#fff;padding:90px 0 70px;text-align:center}
.hero h1{font-size:42px;margin:0 0 16px;letter-spacing:1px}
.hero .sub{font-size:18px;color:#cbd5e1;max-width:720px;margin:0 auto 30px}
.hero-btns{margin-bottom:44px}
.btn{display:inline-block;background:#2563eb;color:#fff;padding:10px 26px;border-radius:8px;font-size:15px;border:0;cursor:pointer}
.btn:hover{background:#1d4ed8}
.btn.lg{padding:14px 36px;font-size:17px;margin:0 8px}
.btn.sm{padding:6px 16px;font-size:13px}
.btn.ghost{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.4)}
.btn.block{display:block;text-align:center}
.hero-stats{display:flex;justify-content:center;gap:56px;flex-wrap:wrap}
.hero-stats div{text-align:center}
.hero-stats strong{display:block;font-size:28px}
.hero-stats span{color:#94a3b8;font-size:14px}

/* sections */
.section{padding:64px 0}
.section.narrow{max-width:760px}
h2{font-size:30px;color:#0f172a}
.ed-h{border-left:4px solid #2563eb;padding-left:12px;font-size:22px;margin-top:44px}

.grid{display:grid;gap:24px}
.feats{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.feat{background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;padding:28px}
.feat .ico{font-size:34px}
.feat h3{margin:10px 0 8px;color:#0f172a}
.feat p{margin:0;color:#475569;font-size:14.5px}

/* pricing */
.pricing-bg{background:linear-gradient(135deg,#0f172a,#1e3a8a)}
.prices{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.price-card{background:#fff;border-radius:16px;padding:32px 28px;position:relative;display:flex;flex-direction:column}
.price-card.hot{outline:3px solid #f59e0b;transform:scale(1.02)}
.ribbon{position:absolute;top:-14px;right:20px;background:#f59e0b;color:#fff;padding:4px 16px;border-radius:99px;font-size:13px}
.price-card h3{margin:0;font-size:22px;color:#0f172a}
.tag-line{color:#64748b;margin:4px 0 14px;font-size:14px}
.price{font-size:38px;font-weight:800;color:#2563eb;margin-bottom:18px}
.price span{font-size:15px;color:#94a3b8;font-weight:400}
.price-card ul{list-style:none;padding:0;margin:0 0 24px;flex:1}
.price-card li{padding:7px 0 7px 26px;position:relative;color:#334155;font-size:14.5px;border-bottom:1px dashed #f1f5f9}
.price-card li::before{content:"✓";position:absolute;left:2px;color:#16a34a;font-weight:700}

/* demos */
.demos{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.demo-card{border:1px solid #e2e8f0;border-radius:12px;overflow:hidden;color:inherit;transition:box-shadow .2s}
.demo-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.1)}
.demo-card img{width:100%;height:160px;object-fit:cover;display:block}
.demo-ph{height:160px;background:linear-gradient(135deg,#dbeafe,#e0e7ff);display:flex;align-items:center;justify-content:center;font-size:40px;color:#2563eb;font-weight:800}
.demo-info{padding:12px 14px}
.demo-info strong{display:block;color:#0f172a}
.demo-info span{font-size:13px;color:#64748b}

/* download */
.dl-table{width:100%;border-collapse:collapse;margin:14px 0}
.dl-table th,.dl-table td{padding:10px 12px;border-bottom:1px solid #e2e8f0;text-align:left;font-size:14.5px}
.dl-table th{background:#f8fafc;color:#475569}

/* contact / qr */
.contact-bg{background:#f8fafc;border-top:1px solid #e2e8f0}
.qr-row{display:flex;gap:40px;justify-content:center;flex-wrap:wrap;margin:24px 0}
.qr img{width:190px;height:190px;object-fit:contain;background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:8px}
.qr p{margin:8px 0 0;color:#475569}

/* renew */
.lic-box{border-radius:12px;padding:18px 22px;margin:18px 0;border:1px solid #e2e8f0}
.lic-box.ok{background:#f0fdf4;border-color:#bbf7d0}
.lic-box.bad{background:#fef2f2;border-color:#fecaca}
.tag{display:inline-block;padding:2px 12px;border-radius:99px;background:#e2e8f0;font-size:13px}
.tag.ok{background:#dcfce7;color:#166534}
.tag.bad{background:#fee2e2;color:#991b1b}

footer{background:#0f172a;color:#94a3b8;padding:34px 0;text-align:center;margin-top:40px}
footer p{margin:4px 0}

@media (max-width:720px){
  .hero h1{font-size:30px}
  .nav nav a{margin-left:12px;font-size:13px}
  .hero-stats{gap:28px}
}

/* 更新日志 */
.cl-item{border:1px solid #e2e8f0;border-radius:14px;padding:22px 26px;margin:18px 0;background:#fff}
.cl-head{display:flex;align-items:baseline;gap:14px;margin-bottom:6px}
.cl-ver{font-size:15px;font-weight:800;color:#fff;background:#2563eb;padding:2px 12px;border-radius:99px}
.cl-date{color:#94a3b8;font-size:14px}
.cl-item h2{margin:4px 0 10px;color:#0f172a;font-size:20px}
.cl-tags{margin-bottom:10px}
.cl-tag{display:inline-block;margin-right:8px;padding:2px 12px;border-radius:99px;background:#eff6ff;color:#1d4ed8;font-size:13px;border:1px solid #dbeafe}
.cl-body{color:#334155;white-space:normal}
.cl-body br{line-height:1.9}

/* 完整功能描述：版本能力清单 */
.feat-list{list-style:none;padding:0;margin:6px auto 8px;max-width:820px}
.feat-list li{position:relative;padding:11px 14px 11px 32px;border-bottom:1px solid #eef2f7;color:#374151;line-height:1.75}
.feat-list li:last-child{border-bottom:none}
.feat-list li:before{content:"✓";position:absolute;left:8px;top:11px;color:#16a34a;font-weight:800}