:root{--primary-color:#0070f3;--primary-hover:#0056b3;--background-color:#f5f5f5;--text-color:#333;--card-bg:#fff;--border-color:#ddd;--error-color:#e00}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background-color);color:var(--text-color);font-family:Helvetica Neue,Arial,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.container{max-width:800px;margin:0 auto;padding:0 20px}.btn{background-color:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:5px;padding:10px 20px;font-size:16px;transition:background-color .2s;display:inline-block}.btn:hover{background-color:var(--primary-hover)}.btn-danger{color:#fff;cursor:pointer;background-color:var(--error-color);border:none;border-radius:5px;padding:10px 20px;font-size:16px;transition:background-color .2s;display:inline-block}.form-group{margin-bottom:20px}.form-label{margin-bottom:8px;font-weight:700;display:block}.form-input,.form-textarea{border:1px solid var(--border-color);border-radius:5px;width:100%;padding:10px;font-size:16px}.form-textarea{resize:vertical;min-height:150px}.card{background-color:var(--card-bg);border-radius:8px;margin-bottom:20px;padding:20px;box-shadow:0 2px 4px #0000001a}.error-message{color:var(--error-color);margin-top:5px;font-size:14px}.post-list{flex-direction:column;gap:20px;display:flex}.post-title{margin-bottom:10px;font-size:1.5em}.post-title a{color:var(--primary-color);text-decoration:none}.post-title a:hover{text-decoration:underline}.post-meta{color:#666;margin-bottom:5px;font-size:14px}.post-content{-webkit-line-clamp:2;line-clamp:2;text-overflow:ellipsis;color:var(--text-color);-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}