*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#1f2937;line-height:1.75;background:#fff;font-size:17px}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
a{color:#0f766e}
.site-header{border-bottom:1px solid #e5e7eb;padding:12px 0;position:sticky;top:0;background:#fff;z-index:10}
.nav-wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brand{font-weight:700;color:#111827;text-decoration:none;font-size:18px}
.site-header nav{display:flex;gap:14px;flex-wrap:wrap}
.site-header nav a{color:#374151;text-decoration:none;font-size:15px}
.hero{padding:28px 0 8px}
.hero h1,.list-page h1,.post h1{font-size:28px;line-height:1.35;margin:0 0 12px;color:#111827}
.lede{color:#4b5563;font-size:17px}
.qr-box{display:flex;gap:18px;align-items:center;border:2px solid #0f766e;border-radius:14px;padding:18px;margin:22px 0;background:#f0fdfa}
.qr-box strong{font-size:20px;color:#111827}
.qr-box p{margin:6px 0}
.qr-note{color:#6b7280;font-size:14px}
.qr-mobile-link a{font-weight:700}
.qr-desktop-tip{color:#6b7280;font-size:14px}
.qr-img{width:190px;height:190px;flex:0 0 auto;background:#fff;border-radius:8px}
@media(max-width:560px){.qr-box{flex-direction:column;text-align:center}.qr-img{width:210px;height:210px}}
.cat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0 24px}
@media(max-width:560px){.cat-grid{grid-template-columns:1fr}}
.cat-card{border:1px solid #e5e7eb;border-radius:12px;padding:14px;text-decoration:none;color:#1f2937}
.cat-card strong{display:block;font-size:17px;color:#111827}
.cat-card span{color:#6b7280;font-size:14px}
.post-list{display:grid;gap:12px;margin:14px 0 28px}
.post-card{border:1px solid #e5e7eb;border-radius:12px;padding:14px 16px}
.post-card h2,.post-card h3{margin:0 0 6px;font-size:19px;line-height:1.45}
.post-card p{margin:4px 0;color:#4b5563}
.post-card .meta{color:#9ca3af;font-size:13px}
.kicker{color:#6b7280;font-size:14px}
.cover{width:100%;height:auto;border-radius:12px;margin:6px 0 4px}
.chips{margin:16px 0;color:#6b7280;font-size:14px}
.chip{display:inline-block;border:1px solid #99f6e4;background:#f0fdfa;border-radius:999px;padding:2px 12px;margin:2px 4px 2px 0;text-decoration:none;color:#0f766e}
.content h2{font-size:22px;margin:28px 0 10px;color:#111827}
.content h3{font-size:19px;margin:22px 0 8px}
.faq{border-top:1px solid #e5e7eb;margin-top:28px;padding-top:8px}
.faq h3{font-size:17px;margin:18px 0 4px}
.site-footer{border-top:1px solid #e5e7eb;margin-top:36px;padding:20px 0 32px;color:#6b7280;font-size:14px}
.site-footer .beian a{color:#6b7280}