:root{--line:#e5e7eb;--muted:#6b7280;--accent:#2f6feb;--bg:#f7f8fa;--text:#1f2328}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.75 -apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
.box{max-width:1040px;margin:0 auto;padding:0 20px}
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .box{display:flex;align-items:center;height:60px}
.brand{font-size:17px;font-weight:700}
.top nav{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:13.5px;color:#4b5563}
.top nav a:hover{color:var(--accent)}
.btn{display:inline-block;border:1px solid var(--line);background:#fff;color:#374151;border-radius:8px;padding:9px 18px;font-size:13.5px;cursor:pointer;line-height:1.5}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:#2560d0;color:#fff}
.btn.small{padding:6px 14px}
.btn.copied{border-color:#16a34a;color:#16a34a}
.hero{padding:88px 0 72px;background:linear-gradient(180deg,#fff 0%,#f7f8fa 100%);border-bottom:1px solid var(--line)}
.tagline{display:inline-block;font-size:12px;color:#1e40af;background:#e8efff;border:1px solid #cfdcff;border-radius:999px;padding:3px 12px;margin-bottom:20px}
.hero h1{font-size:40px;line-height:1.35;margin:0 0 20px;letter-spacing:-.5px}
.lead{max-width:760px;color:#4b5563;font-size:16px;margin:0 0 30px}
.actions{display:flex;gap:12px;flex-wrap:wrap}
section.features,section.get,section.setup,section.preview{padding:64px 0}
h2{font-size:24px;margin:0 0 26px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{font-size:16px;margin:0 0 8px}
.card p{font-size:13.5px;color:#4b5563;margin:0}
.get-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:16px}
.get-head{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.get-head h3{font-size:17px;margin:0}
.pill{font-size:11.5px;color:#6b7280;background:#f1f3f5;border-radius:999px;padding:2px 10px}
.sub{font-size:13.5px;color:#4b5563;margin:0 0 18px}
.cmd{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:8px;background:#fafbfc;padding:10px 12px;margin-bottom:10px;flex-wrap:wrap}
.cmd-label{flex:0 0 96px;font-size:12px;color:var(--muted)}
.cmd code{flex:1;min-width:260px;font:12.5px/1.6 Consolas,monospace;word-break:break-all;color:#1f2328}
.btn.copy{flex:0 0 auto;padding:5px 14px;font-size:12.5px}
.hint{font-size:12.5px;color:var(--muted);margin:12px 0 0}
.hint code{background:#f1f3f5;padding:1px 5px;border-radius:4px;font-size:12px}
.wx-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;border:1px solid var(--line);border-radius:8px;background:#fafbfc;padding:12px}
.wx-row span{font-size:12.5px;color:var(--muted)}
.wx-row b{font-size:17px;letter-spacing:.5px}
.foot{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);font-size:12.5px}
.foot p{margin:0 0 6px}
.foot .links a:hover{color:var(--accent)}

.section-lead{font-size:14.5px;color:#4b5563;margin:-14px 0 24px}
.req{display:flex;flex-direction:column;gap:8px;margin:-8px 0 22px}
.req>div{display:flex;gap:12px;align-items:baseline;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 14px;flex-wrap:wrap}
.req b{min-width:240px;font-size:13.5px}
.req span{font-size:13px;color:#4b5563}
.req code{background:#f1f3f5;padding:1px 5px;border-radius:4px;font-size:12px}
.link{color:var(--accent);text-decoration:underline}
.card pre{margin:12px 0 0;padding:9px 12px;background:#f7f8fa;border:1px solid var(--line);border-radius:7px;font:12.5px/1.7 Consolas,monospace;white-space:pre-wrap;word-break:break-all;color:#1f2328}
.setup .hint{margin-top:18px}
.setup .hint code,.section-lead code{background:#f1f3f5;padding:1px 5px;border-radius:4px;font-size:12.5px}
.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.shot{display:block;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;transition:box-shadow .15s,border-color .15s}
.shot:hover{border-color:var(--accent);box-shadow:0 6px 20px rgba(15,23,42,.1)}
.shot img{display:block;width:100%;height:auto}
.lightbox{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;background:rgba(15,23,42,.82);padding:24px;cursor:zoom-out}
.lightbox img{max-width:100%;max-height:100%;object-fit:contain;border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.4)}
body.lb-open{overflow:hidden}

@media (max-width:640px){
  .hero{padding:56px 0 48px}
  .hero h1{font-size:28px}
  .lead{font-size:14.5px}
  .top nav{gap:12px}
  .top nav a:not(.btn){display:none}
  .cmd-label{flex-basis:100%}
  .cmd code{min-width:100%}
}