*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif;background:#f7f7f7;color:#222}
.container{max-width:960px;margin:0 auto;padding:0 16px}
.site-header{background:#0f62fe;color:#fff}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.brand{font-weight:600}
.site-header a{color:#fff;margin-left:12px;text-decoration:none}
.site-footer{padding:24px 16px;color:#666}
.card{background:#fff;border-radius:8px;padding:16px;margin:16px 0;box-shadow:0 2px 6px rgba(0,0,0,.06)}
.pinned{border-left:6px solid #fa4d56;position:relative}
.pinned-tag{position:absolute;top:8px;right:12px;background:#fa4d56;color:#fff;border-radius:4px;padding:2px 8px;font-size:12px}
.meta{color:#666;font-size:13px;margin:8px 0}
.list-item{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px dashed #eee}
.list-item a{color:#0f62fe;text-decoration:none}
.content{line-height:1.8}
.comment-form .form-row{display:flex;align-items:center;gap:12px;margin:8px 0}
.comment-form input,.comment-form textarea{flex:1;padding:8px;border:1px solid #ddd;border-radius:6px}
.comment-form button,.btn{background:#0f62fe;color:#fff;border:none;border-radius:6px;padding:8px 12px;cursor:pointer}
.btn.danger{background:#fa4d56}
.comments .comment-item{border-top:1px solid #eee;padding:12px 0}
.back-link{display:inline-block;margin-top:12px;color:#0f62fe;text-decoration:none}
.error{background:#ffe5e5;color:#b00020;border:1px solid #ff9a9a;padding:8px;border-radius:6px;margin-bottom:12px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid #eee;padding:8px;text-align:left}
.form-row{margin:8px 0}
.form-row input,.form-row textarea{width:100%;padding:8px;border:1px solid #ddd;border-radius:6px}
.actions{display:flex;gap:8px;margin-bottom:12px}