:root{color-scheme:light;--ink:#18212b;--muted:#71808f;--line:#e6ebef;--blue:#1769e0;--bg:#f6f8fa;--card:#fff}*{box-sizing:border-box}body{margin:0;color:var(--ink);font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg)}a{color:inherit;text-decoration:none}.site-header{height:64px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 max(20px,calc((100% - 1080px)/2));gap:44px}.brand{display:flex;align-items:center;font-size:20px;font-weight:700;gap:8px}.brand img{width:30px;height:30px;object-fit:contain}.site-header nav{display:flex;gap:26px;color:var(--muted)}.site-header nav a{height:64px;display:flex;align-items:center;border-bottom:2px solid transparent}.site-header nav .active{color:var(--blue);border-color:var(--blue)}.page{max-width:820px;margin:0 auto;padding:38px 20px 130px}.intro{margin-bottom:26px}.eyebrow{color:var(--blue);font-size:12px;letter-spacing:1px;margin:0 0 5px}.intro h1{font-size:32px;line-height:1.25;margin:0 0 8px}.intro p:last-child{color:var(--muted);margin:0}.toolbar{display:flex;gap:10px;margin-bottom:18px}.search{height:46px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;flex:1;padding:0 13px;color:var(--muted);border-radius:6px}.search span{font-size:24px;line-height:1;margin-right:8px}.search input{border:0;outline:0;width:100%;font:inherit;color:var(--ink)}select{height:46px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:0 30px 0 12px;color:var(--ink);font:inherit}.feed{display:grid;gap:12px}.post{background:var(--card);border:1px solid var(--line);border-radius:7px;padding:18px}.post-head{display:flex;align-items:center;gap:10px}.avatar{width:38px;height:38px;border-radius:50%;background:#e7f0ff;color:var(--blue);display:grid;place-items:center;font-weight:600;overflow:hidden}.avatar img{width:100%;height:100%;object-fit:cover}.post-meta{flex:1;min-width:0}.post-meta strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.post-meta time{color:var(--muted);font-size:12px}.post-content{white-space:pre-wrap;word-break:break-word;margin:14px 0;color:#354454}.post-images{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.post-images img{width:100%;aspect-ratio:1.35;object-fit:cover;border-radius:5px;background:#eef2f5}.post-footer{display:flex;align-items:center;justify-content:space-between;margin-top:15px;padding-top:12px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.button,.contact{border:0;border-radius:5px;background:var(--blue);color:#fff;padding:8px 15px;font:inherit;font-weight:600;cursor:pointer}.state{text-align:center;color:var(--muted);padding:36px 0}.more{display:block;margin:20px auto;border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:5px;padding:9px 24px;font:inherit;cursor:pointer}.download-bar{position:fixed;z-index:5;bottom:0;left:0;right:0;background:rgba(255,255,255,.97);border-top:1px solid var(--line);padding:12px max(20px,calc((100% - 780px)/2));display:flex;align-items:center;justify-content:space-between;gap:15px;padding-bottom:max(12px,env(safe-area-inset-bottom))}.download-bar strong,.download-bar span{display:block}.download-bar span{font-size:12px;color:var(--muted)}.back{color:var(--blue);display:inline-block;margin-bottom:18px}.detail{background:#fff;border:1px solid var(--line);border-radius:7px;padding:22px}.detail h1{font-size:22px;margin:0 0 16px}.detail .post-content{font-size:16px}.detail .post-images{grid-template-columns:repeat(2,1fr)}@media(max-width:600px){.site-header{height:56px;padding:0 16px;justify-content:space-between;gap:10px}.site-header nav{gap:12px;font-size:13px}.site-header nav a{height:56px}.page{padding:27px 14px 125px}.intro h1{font-size:28px}.toolbar{position:sticky;top:0;z-index:2;padding:8px 0;background:var(--bg)}select{max-width:108px}.post{padding:15px}.post-images{gap:5px}.download-bar{padding-left:14px;padding-right:14px}.download-bar .button{white-space:nowrap}.detail{padding:16px}}