:root{--bg: #f7f8fa;--card: #ffffff;--text: #1a1d23;--muted: #8a919e;--border: #e8eaee;--accent: #2563eb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,sans-serif}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:16px;padding:12px 24px;background:#ffffffd9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.brand{font-size:18px;font-weight:800;letter-spacing:.5px;text-decoration:none;color:var(--text)}.admin-link{margin-left:auto;text-decoration:none;font-size:14px;font-weight:600;color:#fff;background:var(--accent);padding:8px 16px;border-radius:20px;white-space:nowrap}main{max-width:1400px;margin:0 auto;padding:24px}.toolbar-row{display:flex;align-items:center;gap:12px;margin-bottom:18px}.toolbar-row input[type=search]{width:220px;max-width:40vw;padding:8px 14px;border:1px solid var(--border);border-radius:20px;font-size:14px;outline:none;background:#fff}.toolbar-row input[type=search]:focus{border-color:var(--accent)}.count{font-size:13px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}.card{position:relative;border-radius:12px;overflow:hidden;background:var(--card);border:1px solid var(--border);cursor:zoom-in;aspect-ratio:4 / 3}.card img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease;background:linear-gradient(110deg,#eef0f3 8%,#e2e5ea 18%,#eef0f3 33%);background-size:200% 100%;animation:shimmer 1.6s linear infinite}.card img.loaded{animation:none;background:none}.card:hover img{transform:scale(1.04)}@keyframes shimmer{to{background-position:-200% 0}}.empty{text-align:center;color:var(--muted);padding:80px 0;font-size:15px}.empty a{color:var(--accent)}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#0a0c10eb;display:flex;align-items:center;justify-content:center}.lightbox img{max-width:92vw;max-height:86vh;border-radius:8px;box-shadow:0 24px 80px #00000080}.lb-caption{position:absolute;bottom:22px;left:0;right:0;text-align:center;color:#c9cfda;font-size:13px}.lightbox button{position:absolute;border:none;background:#ffffff1a;color:#fff;font-size:26px;width:48px;height:48px;border-radius:50%;cursor:pointer;line-height:1}.lightbox button:hover{background:#ffffff38}.lb-close{top:20px;right:24px}.lb-prev{left:20px;top:50%;transform:translateY(-50%)}.lb-next{right:20px;top:50%;transform:translateY(-50%)}.admin{max-width:640px;margin:40px auto;padding:0 24px}.admin h1{font-size:22px}.admin .hint{color:var(--muted);font-size:14px}.admin .field{margin:16px 0}.admin label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.admin input[type=password]{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff}.admin button.primary{background:var(--accent);color:#fff;border:none;padding:10px 28px;border-radius:20px;font-size:15px;font-weight:600;cursor:pointer}.admin button.primary:disabled{opacity:.5;cursor:default}#log{margin-top:20px;font-size:13px;line-height:1.9}#log .ok{color:#15803d}#log .err{color:#b91c1c}.drop{border:2px dashed var(--border);border-radius:12px;padding:36px;text-align:center;color:var(--muted);background:#fff;cursor:pointer}.drop.over{border-color:var(--accent);color:var(--accent)}