:root{
  --bg:#f7fbff; --ink:#222; --muted:#667; --brand:#2d8cff; --card:#fff; --line:#e8eef6;
}
*{box-sizing:border-box}
body{margin:0;font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);}
.wrap{max-width:1100px;margin:0 auto;padding:16px;}
.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:10}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:600}
.brand img{width:48px;height:48px}
.main-nav ul{display:flex;gap:14px;list-style:none;margin:0;padding:0}
.main-nav a{color:var(--ink);text-decoration:none;padding:10px 12px;border-radius:10px}
.main-nav a:hover{background:#f0f5ff}
.nav-toggle{display:none;border:0;background:#fff;font-size:22px}
@media (max-width:800px){
  .main-nav ul{display:none;flex-direction:column;background:#fff;position:absolute;right:16px;top:64px;border:1px solid var(--line);border-radius:12px;padding:8px;width:min(80vw,300px);}
  .main-nav.open ul{display:flex}
  .nav-toggle{display:block}
}
.hero{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:24px;padding:24px 0}
@media (max-width:900px){.hero{grid-template-columns:1fr} .hero-art{display:none}}
.hero-text h1{margin:0 0 8px;font-size:clamp(24px,4.2vw,44px)}
.hero-text p{color:var(--muted);margin:0 0 16px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{background:var(--brand);color:#fff;text-decoration:none;padding:12px 16px;border-radius:12px;display:inline-block;border:0;cursor:pointer}
.btn.ghost{background:#fff;color:var(--brand);border:2px solid var(--brand)}
.hero-art .camera{width:100%;height:240px;background:linear-gradient(135deg,#eaf4ff,#fff);border:2px dashed #c8dbff;border-radius:24px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin:24px 0 40px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;text-decoration:none;color:inherit;transition:.2s box-shadow}
.card:hover{box-shadow:0 6px 22px rgba(0,0,0,.06)}
h2{margin-top:12px}
.pc-form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;margin:8px 0 40px;display:block}
.pc-form .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
label{display:flex;flex-direction:column;gap:6px;font-weight:500}
input[type=file], input[type=text], select, textarea{padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff}
.preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin:12px 0}
.preview .thumb{border:1px solid var(--line);border-radius:12px;overflow:hidden;padding:6px;background:#fff}
.preview img{width:100%;height:110px;object-fit:cover;display:block;border-radius:8px}
.hint{color:var(--muted);font-size:12px}
.stack{display:flex;flex-direction:column;gap:6px;align-self:end}
.site-footer{border-top:1px solid var(--line);background:#fff;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;align-items:start}
.copyright{text-align:center;color:var(--muted);font-size:12px;padding:12px}