:root{--bg:#fff;--text-main:#111;--text-muted:#666;--text-light:#999;--border:#eaeaea;--accent:#000;color:var(--text-main);background:var(--bg);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}html,body{height:100%;margin:0;padding:0}#root{flex-direction:column;min-height:100%;display:flex}.dark-mode{--bg:#1a1a1a;--text-main:#e0e0e0;--text-muted:#a0a0a0;--text-light:#707070;--border:#333;--accent:#fff;color:var(--text-main);background:var(--bg)}.dark-mode .warning{background:#2d1f1d;border:1px solid #4d332f}.dark-mode .warning p{color:#e67c67}body{-webkit-font-smoothing:antialiased;margin:0;padding:0}#root{max-width:680px;margin:0 auto;padding:4rem 1.5rem}a{color:inherit;text-decoration:none;transition:opacity .2s}a:hover{opacity:.6}h1,h2,h3{color:var(--text-main);margin:2rem 0 1rem;font-weight:600}h1{letter-spacing:-.02em;font-size:2rem}h2{letter-spacing:-.01em;font-size:1.5rem}h3{font-size:1.25rem}p{color:var(--text-muted);margin:0 0 1.5rem}header{justify-content:space-between;align-items:center;margin-bottom:4rem;display:flex}header .brand{color:var(--text-main);letter-spacing:-.02em;font-size:1.25rem;font-weight:600}header nav{gap:1.5rem;display:flex}header nav a{color:var(--text-muted);font-size:.95rem}header nav a.active{color:var(--text-main);font-weight:500}.post-list{margin:0;padding:0;list-style:none}.post-item{margin-bottom:3rem}.post-item h2{align-items:baseline;gap:1rem;margin:0 0 .5rem;font-size:1.35rem;display:flex}.post-item h2 .meta{color:var(--text-light);flex-shrink:0;font-size:.85rem;font-weight:400}.post-item .meta{color:var(--text-light);margin-bottom:.5rem;font-size:.85rem;display:block}.post-item p{color:var(--text-muted);margin:0;font-size:1rem}.post-detail h1{flex-wrap:wrap;align-items:baseline;gap:1.5rem;margin-top:0;margin-bottom:.5rem;font-size:2.5rem;line-height:1.2;display:flex}.post-detail h1 .meta{color:var(--text-light);flex-shrink:0;font-size:.9rem;font-weight:400}.post-detail .meta{color:var(--text-light);margin-bottom:3rem;font-size:.9rem;display:block}.post-detail .content{color:var(--text-main);font-size:1.05rem;line-height:1.8}.post-detail .content p{color:var(--text-main)}.post-detail .cover{border-radius:4px;width:100%;height:auto;margin-bottom:2rem}.form-group{margin-bottom:1.5rem}.form-group label{color:var(--text-muted);margin-bottom:.5rem;font-size:.9rem;display:block}input,textarea{border:1px solid var(--border);width:100%;color:var(--text-main);box-sizing:border-box;background:0 0;border-radius:4px;padding:.75rem;font-family:inherit;font-size:1rem}input:focus,textarea:focus{border-color:var(--text-main);outline:none}button{background:var(--text-main);color:var(--bg);cursor:pointer;border:none;border-radius:4px;padding:.75rem 1.5rem;font-size:1rem;transition:opacity .2s}button:hover{opacity:.9}button:disabled{background:var(--border);color:var(--text-muted);cursor:not-allowed}.warning{background:#fdf8f6;border:1px solid #f2e2df;border-radius:4px;margin-bottom:2rem;padding:1rem}.warning p{color:#c95c47;margin:0;font-size:.9rem}.error{color:#d32f2f;margin-top:.5rem;font-size:.9rem}.success{color:#2e7d32;margin-top:.5rem;font-size:.9rem}.back-link{color:var(--text-muted);margin-top:3rem;font-size:.9rem;display:inline-block}.back-link:hover{color:var(--text-main)}.header-flex{justify-content:space-between;align-items:baseline;display:flex}.refresh-btn{color:var(--text-muted);border:1px solid var(--border);background:0 0;margin-left:1rem;padding:.25rem .75rem;font-size:.8rem}.refresh-btn:hover{border-color:var(--text-main);color:var(--text-main)}.theme-toggle{color:var(--text-muted);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;padding:.5rem;transition:all .3s;display:flex}.theme-toggle:hover{border-color:var(--text-main);color:var(--text-main);transform:scale(1.1)}