body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;color:#1a1a1a;margin:0;background:#fff}
.wrap{max-width:820px;margin:0 auto;padding:0 20px}
.site-header{border-bottom:1px solid #e5e5e5;padding:20px 0 10px}
.site-header .wrap{display:flex;justify-content:space-between;align-items:center}
.logo{font-size:28px;font-weight:800;text-decoration:none;color:#111;display:flex;align-items:center;gap:10px}
.logo img{height:32px;width:auto;display:block}
nav a{margin-left:16px;text-decoration:none;color:#333}
.tagline{color:#666;margin:8px auto 0}
.hero{padding:24px 0}
h1{font-size:30px;line-height:1.4} h2{margin-top:36px}
.card-list{list-style:none;padding:0;display:grid;gap:12px}
.card-list li{border:1px solid #e5e5e5;border-radius:10px;padding:16px}
.card-list a{text-decoration:none;color:#111}
.card-list p{color:#555;margin:6px 0 0}
.desc{color:#555;font-size:18px}
.meta,.small{color:#777;font-size:14px}
.btn{display:inline-block;background:#111;color:#fff!important;padding:10px 18px;border-radius:8px;text-decoration:none}
.site-footer{border-top:1px solid #e5e5e5;margin-top:48px;padding:20px 0;color:#666;font-size:14px}
.content img{max-width:100%}
.r2-image{margin:20px 0}
.r2-image figcaption{color:#777;font-size:14px;margin-top:6px}
@media(max-width:600px){.site-header .wrap{flex-direction:column;align-items:flex-start;gap:8px}nav a{margin:0 12px 0 0}}